CN112678928A - Water purifier - Google Patents
Water purifier Download PDFInfo
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- CN112678928A CN112678928A CN201910990911.6A CN201910990911A CN112678928A CN 112678928 A CN112678928 A CN 112678928A CN 201910990911 A CN201910990911 A CN 201910990911A CN 112678928 A CN112678928 A CN 112678928A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 351
- 239000013505 freshwater Substances 0.000 claims abstract description 146
- 238000000746 purification Methods 0.000 claims abstract description 125
- 238000001514 detection method Methods 0.000 claims description 44
- 230000001105 regulatory effect Effects 0.000 claims description 38
- 230000001276 controlling effect Effects 0.000 claims description 33
- 238000001914 filtration Methods 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 6
- 239000000356 contaminant Substances 0.000 claims 1
- 238000011045 prefiltration Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000003911 water pollution Methods 0.000 abstract description 3
- 238000010612 desalination reaction Methods 0.000 description 9
- 238000000909 electrodialysis Methods 0.000 description 6
- 239000008213 purified water Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000005341 cation exchange Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003014 ion exchange membrane Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011403 purification operation Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 239000003011 anion exchange membrane Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a water purifier, which comprises a fresh water outlet, a concentrated water outlet, an electric purification module and a waterway switching module, wherein when an internal electrode of the electric purification module is in a first polarity mode, the electric purification module discharges fresh water from a first water discharge port, the electric purification module discharges concentrated water from a second water discharge port, and when an inverted polarity mode is switched to a second polarity mode, the electric purification module discharges concentrated water from the first water discharge port, and the second water discharge port discharges fresh water, the waterway switching module correspondingly acts along with the working mode of the electric purification module, so that the fresh water outlet always discharges fresh water, the concentrated water outlet discharges concentrated water, and simultaneously, before the inverted polarity mode is switched, the waterway switching module discharges the concentrated water remained in a pipeline, so that the remained concentrated water is prevented from being mixed with the fresh water to cause fresh water pollution, the pipeline cleaning cost is further reduced, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of water purifiers, in particular to a water purifier.
Background
The water purifier is also called water purifier and water quality purifier, and is water treatment equipment for deeply filtering and purifying water according to the use requirement of water. The reverse-electrode electrodialysis technology for removing pollutants in water by adopting the action of an electric field is applied and developed on a household water purifier rapidly in recent years, but the technology has the following problems:
after the electrodialyzer works for a period of time, because the quality of inlet water is relatively complex, the impurities of scales inside the electrodialyzer are removed by adopting a mode of changing the anode into the cathode and changing the cathode into the anode, and then the former electrode is recovered, so that the service life of the device is prolonged. However, in the process of pole reversal, the purified water flows through the original waterway through which the concentrated water flows, the concentrated water flows through the waterway through which the purified water flows, namely, the original purified water pipeline circulates the concentrated water, and the original concentrated water pipeline circulates the purified water. Therefore, the purified water is polluted by the concentrated water, the pipeline cleaning cost is increased, and the use experience is not good.
Disclosure of Invention
The invention mainly aims to provide a water purifier, aiming at solving the problem that purified water is polluted by concentrated water in the operation of the water purifier.
To achieve the above object, the present invention provides a water purifier comprising:
a fresh water outlet;
a concentrated water outlet;
the electric purification module is provided with a first water outlet and a second water outlet and is used for switching a first polarity mode and a second polarity mode according to a preset time interval so as to control the first water outlet to discharge fresh water and control the second water outlet to discharge concentrated water in the first polarity mode, control the first water outlet to discharge concentrated water in the second polarity mode and control the second water outlet to discharge fresh water; and
the waterway switching module is used for controlling the first water outlet to be communicated with the fresh water outlet and controlling the second water outlet to be communicated with the concentrated water outlet when the electric purification module is in the first polarity mode; when the electrical purification module is in the second polarity mode, controlling the first drain outlet to be communicated with the concentrated water outlet and controlling the second drain outlet to be communicated with the fresh water outlet;
when the electric purification module is switched from the first polarity mode to the second polarity mode or within a preset time before the electric purification module is switched from the second polarity mode to the first polarity mode, the waterway switching module executes a waste discharge operation so as to discharge concentrated water in the waterway switching module from the concentrated water interface.
Preferably, the waterway switching module comprises a first control valve, a second control valve, a third control valve, a fourth control valve, a fifth control valve and a sixth control valve;
the water inlet of the first control valve and the water inlet of the second control valve are respectively connected with the first water outlet of the electric purification module, the water inlet of the third control valve and the water inlet of the fourth control valve are respectively connected with the first water outlet of the electric purification module,
the water outlet of the first control valve, the water outlet of the fourth control valve, the water inlet of the fifth control valve and the water inlet of the sixth control valve are respectively connected, the water outlet of the second control valve, the water outlet of the third control valve, the concentrated water outlet and the water outlet of the sixth control valve are respectively connected, and the water outlet of the fifth control valve is connected with the fresh water outlet; wherein,
when the electrical purification module is in a first polarity mode, the first control valve, the third control valve and the fifth control valve are turned on, the second control valve, the fourth control valve and the sixth control valve are turned off, and when a waste discharge work is performed, the second control valve, the fourth control valve and the sixth control valve are turned on, and the first control valve, the third control valve and the fifth control valve are turned off;
when the electrical purification module is in a second polarity mode, the second control valve, the fourth control valve and the fifth control valve are turned on, the first control valve, the third control valve and the sixth control valve are turned off, and when a waste discharge operation is performed, the first control valve, the third control valve and the sixth control valve are turned on, and the second control valve, the fourth control valve and the fifth control valve are turned off.
Preferably, the water purifier further comprises a control module, a control end of the control module is connected with the controlled end of the electric purification module, the controlled end of the first control valve, the controlled end of the second control valve, the controlled end of the third control valve, the controlled end of the fourth control valve, the controlled end of the fifth control valve and the controlled end of the sixth control valve, and the control module is used for controlling the electric purification module to perform polarity mode switching according to a preset time interval and controlling each control valve of the waterway switching module to perform corresponding switch action.
Preferably, the water purifier further comprises a first TDS detection module, a signal end of the first TDS detection module is connected with a signal end of the control module, and the first TDS detection module is arranged at the fresh water outlet;
the first TDS detection module is used for detecting a TDS value of the fresh water at the fresh water outlet and feeding the TDS value back to the control module;
the control module is used for comparing the fresh water TDS value fed back by the first TDS detection module with a preset TDS threshold value, controlling the electrode voltage of the electric purification module to increase when the fresh water TDS value is smaller than the preset TDS threshold value, and controlling the electrode voltage of the electric purification module to decrease when the fresh water TDS value is larger than the preset TDS threshold value.
Preferably, the water purifier further comprises a raw water inlet, the electric purification module further comprises a fresh water inlet and a concentrated water inlet, and the fresh water inlet and the concentrated water inlet are respectively connected with the raw water inlet;
the water purifier also comprises a first flow regulating valve for regulating the flow of the fresh water inlet of the electric purification module, and the first flow regulating valve is arranged between the fresh water inlet of the electric purification module and the raw water inlet;
the control module is used for comparing the fresh water TDS value fed back by the first TDS detection module with a preset TDS threshold value, controlling the electrode voltage of the electric purification module to be reduced and/or controlling the flow of the first flow regulating valve to be increased when the fresh water TDS value is smaller than the preset TDS threshold value, and controlling the electrode voltage of the electric purification module to be increased and/or controlling the flow of the first flow regulating valve to be reduced when the fresh water TDS value is larger than the preset TDS threshold value.
Preferably, the water purifier further comprises a second TDS detection module, a signal end of the second TDS detection module is connected with a signal end of the control module, and the second TDS detection module is arranged at a fresh water inlet of the electric purification module;
the second TDS detection module is used for detecting a raw water TDS value of a fresh water inlet of the electric purification module and feeding the raw water TDS value back to the control module;
the control module is used for controlling the electrode voltage of the electric purification module and/or controlling the flow of the first flow regulating valve according to the raw water TDS value fed back by the second TDS detection module and the fresh water TDS value fed back by the first TDS detection module, so that the fresh water TDS value fed back by the first TDS detection module is within a preset TDS threshold value.
Preferably, the water purifier further comprises a second flow regulating valve for regulating the flow of the concentrated water inlet of the electric purification module, and the second flow regulating valve is arranged between the concentrated water inlet of the electric purification module and the raw water inlet.
Preferably, the water purifier further comprises a water inlet valve for controlling inflow of raw water and a water pressure regulating valve for controlling water pressure of the raw water, and the raw water inlet, the water inlet valve and the water pressure regulating valve are sequentially connected.
Preferably, the water purifier further comprises a first filtering module for filtering impurities of raw water, the first filtering module comprises a front filter element, and the front filter element is arranged between the raw water inlet and the water inlet valve.
Preferably, the water purifier further comprises a second filtering module for filtering fresh water impurities, the second filtering module comprises a rear filter element, and the rear filter element is arranged between the waterway switching module and the fresh water outlet.
According to the technical scheme, the water purifier consists of the fresh water outlet, the concentrated water outlet, the electric purification module and the waterway switching module, when the internal electrode is in a first polarity mode, the electric purification module discharges fresh water from the first water discharge port, discharges concentrated water from the second water discharge port, and when the polarity is switched to a second polarity mode, discharges concentrated water from the first water discharge port and discharges fresh water from the second water discharge port, the waterway switching module correspondingly acts along with the working mode of the electric purification module, so that the fresh water outlet always discharges fresh water and the concentrated water outlet discharges concentrated water, and meanwhile, before the polarity is switched, the waterway switching module discharges the concentrated water remained in the pipeline, so that the phenomenon that the remained concentrated water is mixed with the fresh water to cause fresh water pollution is avoided, the pipeline cleaning cost is reduced, and the user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic block diagram of a water purifier according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a water purifier according to another embodiment of the present invention;
FIG. 3 is a schematic block diagram of an embodiment of a TDS detection module of a water purifier according to the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | Electric purification module | K1 | |
| 20 | Waterway switching module | K2 | |
| 30 | Control module | K3 | |
| 40 | First filter module | K4 | |
| 50 | Second filter module | K5 | |
| 60 | First TDS detection module | K6 | |
| 70 | Second TDS detection module | K7 | First flow regulating valve |
| IN | Raw water inlet | K8 | Second flow regulating valve |
| OUT1 | Fresh water outlet | K9 | Water inlet valve |
| OUT2 | Concentrated water outlet | K10 | Water pressure regulating valve |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the descriptions relating to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is: the method comprises three parallel schemes, wherein the scheme is taken as an A/B (A/B) as an example, the scheme comprises the scheme A, the scheme B or the scheme A and the scheme B simultaneously satisfy, in addition, the technical schemes between the various embodiments can be combined with each other, but the technical schemes must be based on the realization of the technical schemes by a person skilled in the art, and when the technical schemes are mutually contradictory or can not be realized, the combination of the technical schemes is not considered to exist, and the protection scope of the invention is not within the protection scope of the invention.
The invention provides a water purifier.
As shown in fig. 1, fig. 1 is a schematic block diagram of a water purifier according to an embodiment of the present invention, wherein the water purifier includes:
a fresh water outlet OUT 1;
a concentrate outlet OUT 2;
the electrical purification module 10 is provided with a first water outlet and a second water outlet, and is used for switching a first polarity mode and a second polarity mode according to a preset time interval, so that the first water outlet is controlled to discharge fresh water in the first polarity mode, the second water outlet is controlled to discharge concentrated water, the first water outlet is controlled to discharge concentrated water in the second polarity mode, and the second water outlet is controlled to discharge fresh water; and
the waterway switching module 20 is configured to control the first water outlet to be communicated with the fresh water outlet OUT1 and control the second water outlet to be communicated with the concentrated water outlet OUT2 when the electrical purification module 10 is in the first polarity mode; when the electrical purification module 10 is in the second polarity mode, the first drain port is controlled to be communicated with the concentrated water outlet OUT2, and the second drain port is controlled to be communicated with the fresh water outlet OUT 1;
when the electrical purification module 10 is switched from the first polarity mode to the second polarity mode or within a preset time before the electrical purification module is switched from the second polarity mode to the first polarity mode, the waterway switching module 20 performs a waste discharge operation to discharge the concentrated water in the waterway switching module 20 from the concentrated water port.
In this embodiment, the electrical purification module 10 utilizes anion-cation exchange membranes alternately arranged between the positive and negative electrodes and is separated by a special partition plate to form two systems of desalination and concentration, under the action of the dc electric field, cations in water migrate to the negative electrode and only pass through the cation exchange membranes, anions migrate to the positive electrode and only pass through the anion exchange membranes, so that the raw water in the dilute chamber is desalinated, and the raw water in the concentrated chamber is concentrated.
The electrical purification module 10 generally includes an electrodialysis body, a rectifier and an automatic polarity reversing system, wherein the electrical purification module 10 switches polarities of positive and negative electrodes (frequent polarity reversal) at intervals of a preset time (for example, 15-20 min), switches from a first polarity mode to a second polarity mode or from the second polarity mode to the first polarity mode, automatically cleans dirt formed on surfaces of an ion exchange membrane and the electrodes to ensure long-term stability of an ion exchange membrane effect and quality and quantity of fresh water, discharges fresh water from a first water discharge port and discharges concentrated water from a second water discharge port in the first polarity mode, and discharges and switches from the first water discharge port and the second water discharge port after polarity switching, discharges fresh water from the second water discharge port and discharges concentrated water from the first water discharge port.
Wherein, the pole-reversing operation flow of the electrical purification module 10 is as follows:
(1) the polarity of the direct current power supply electrode is switched, so that the thick chamber and the thin chamber are exchanged, and the ion flow is performed reversely;
(2) the water inlet and outlet valves are switched to enable water supply and drainage systems of the thick room and the thin room to be exchanged;
(3) and after polarity conversion, continuing for a preset time, such as 1-2min, returning unqualified fresh water into a concentrated water system, and then enabling the concentrated water and the fresh water to respectively go to the same way to recover normal operation.
In order to avoid the waterway pollution caused by the flow of the concentrated water and the fresh water through the same pipeline, the water purifier is also provided with a waterway switching module 20, a control valve inside the waterway switching module 20 keeps different switch states when the electric purification module 10 works in different polarity modes and switches the switch states after the polarity mode is switched, so as to convey the fresh water output by the electric purification module 10 to a fresh water outlet OUT1 and convey the concentrated water output by the electric purification module 10 to a concentrated water outlet OUT2, so that each pipeline between the electric purification module 10 and the fresh water outlet OUT1 or the concentrated water outlet OUT2 only passes through water with one water quality, meanwhile, in the preset time before the polarity mode is switched, the waste discharge work is executed, the concentrated water remained in the waterway switching module 20 is discharged from the concentrated water outlet OUT2, namely, the water purifier circularly carries OUT the reverse electrodialysis water purification work and the waste discharge work, after the waste discharge work is completed, and performing polarity switching from the previous electrodialysis water purification operation to the next electrodialysis water purification operation, wherein the polarity switching is performed from the first polarity mode to the second polarity mode, or from the second polarity mode to the first polarity mode, that is, the polarity switching is performed simultaneously by the electrodes inside the electrical purification module 10.
Meanwhile, the electric purification module 10 and the waterway switching module 20 can be synchronously controlled by a controller, or the electric purification module and the waterway switching module are interlocked and controlled by components such as a switch device and a timing module, and the specific control mode is not limited.
According to the technical scheme, the water purifier consists of the fresh water outlet OUT1, the concentrated water outlet OUT2, the electric purification module 10 and the waterway switching module 20, when the internal electrode is in the first polarity mode, the electric purification module 10 discharges fresh water from the first water discharge port, the concentrated water is discharged from the second water discharge port, when the polarity is switched to the second polarity mode, the concentrated water is discharged from the first water discharge port, the fresh water is discharged from the second water discharge port, the waterway switching module 20 correspondingly acts along with the working mode of the electric purification module 10, so that the fresh water is always discharged from the fresh water outlet OUT1, and the concentrated water is discharged from the concentrated water outlet OUT2, meanwhile, before the polarity is switched, the waterway switching module 20 discharges the concentrated water reserved in the pipeline, the reserved concentrated water and the fresh water are prevented from being mixed, fresh water pollution is avoided, the pipeline cleaning cost is reduced, and the user experience is improved.
In one embodiment, the waterway switching module 20 includes a first control valve K1, a second control valve K2, a third control valve K3, a fourth control valve K4, a fifth control valve K5, and a sixth control valve K6;
the water inlet of the first control valve K1 and the water inlet of the second control valve K2 are respectively connected with the first water outlet of the electric purification module 10, the water inlet of the third control valve K3 and the water inlet of the fourth control valve K4 are respectively connected with the first water outlet of the electric purification module 10,
the water outlet of the first control valve K1, the water outlet of the fourth control valve K4, the water inlet of the fifth control valve K5 and the water inlet of the sixth control valve K6 are respectively connected, the water outlet of the second control valve K2, the water outlet of the third control valve K3, the water outlet of the concentrated water outlet OUT2 and the water outlet of the sixth control valve K6 are respectively connected, and the water outlet of the fifth control valve K5 is connected with the fresh water outlet OUT 1; wherein,
when the electric purification module 10 is in the first polarity mode, the first, third and fifth control valves K1, K3 and K5 are turned on, the second, fourth and sixth control valves K2, K4 and K6 are turned off, and when the exhaust work is performed, the second, fourth and sixth control valves K2, K4 and K6 are turned on, and the first, third and fifth control valves K1, K3 and K5 are turned off;
when the electric purification module 10 is in the second polarity mode, the second, fourth and fifth control valves K2, K4 and K5 are turned on, the first, third and sixth control valves K1, K3 and K6 are turned off, and when the purge operation is performed, the first, third and sixth control valves K1, K3 and K6 are turned on, and the second, fourth and fifth control valves K2, K4 and K5 are turned off.
In this embodiment, when the electrical purification module 10 is in the first polarity mode, the first water discharge port discharges fresh water, the second water discharge port discharges concentrated water, and when the electrical purification module 10 is in the second polarity mode, the internal water channels of the electrical purification module 10 are switched, the first water discharge port discharges concentrated water, and the second water discharge port discharges fresh water, therefore, in order to avoid water channel pollution, when the electrical purification module 10 is in the first polarity mode, the first control valve K1, the third control valve K3, and the fifth control valve K5 are turned on, the second control valve K2, the fourth control valve K4, and the sixth control valve K6 are turned off, the fresh water discharged from the electrical purification module 10 is delivered from the first control valve K1 and the fifth control valve K5 to the fresh water outlet OUT1, the concentrated water is delivered from the third control valve K3 to the concentrated water outlet 2, the electrical purification module 10 needs to be inverted after running for a preset time, and concentrated water is still left in the water channels between the electrical purification module 20, that is left in the water channels 4, therefore, before the reverse polarity, it is necessary to discharge it, at this time, the second control valve K2, the fourth control valve K4 and the sixth control valve K6 are turned on, the first control valve K1, the third control valve K3 and the fifth control valve K5 are turned off, the thick water remaining between the electric purification module 10 and the fourth control valve K4 flows into the thick water outlet OUT2 from the fourth control valve K4 and the sixth control valve K6 and is discharged, after the concentrated water is drained, the electric purification module 10 reverses polarity, at this time, the fresh water and the concentrated water are switched in water paths, concentrated water is drained from the first water drainage port, fresh water is drained from the second water drainage port, at this time, the second control valve K2, the fourth control valve K4 and the fifth control valve K5 of the water path switching module 20 are switched on, the first control valve K1, the third control valve K3 and the sixth control valve K6 are switched off, at this time, the concentrated water is conveyed to a concentrated water outlet OUT2 through the second control valve K2, and the fresh water is conveyed to a fresh water outlet OUT1 through the fourth control valve K4 and the fifth control valve K5.
Similarly, after the electric purification module 10 operates for a preset time, the reverse polarity operation is performed again, since the concentrated water waterway in the waterway switching module 20, that is, the waterway between the electric purification module 10 and the first control valve K1 still contains concentrated water, before the reverse polarity operation, the concentrated water needs to be discharged, the first control valve K1, the third control valve K3 and the sixth control valve K6 are turned on, the second control valve K2, the fourth control valve K4 and the fifth control valve K5 are turned off, the concentrated water flows OUT from the first control valve K1 and the sixth control valve K6 to the concentrated water outlet OUT2 and is discharged, after the concentrated water is emptied, the electric purification module 10 reverses polarity operation, the fresh water and the concentrated water waterway are switched, the fresh water is discharged from the first water discharge port, the concentrated water is discharged from the second water discharge port, the first control valve K38, the third control valve K3 and the fifth control valve K6326 are turned on, the second control valve K2, the fourth control valve K4, the sixth control valve K6 and the fresh water discharge port K6 are turned off from the first control valve K1 to the fifth control valve K638 and the fresh water discharge port is turned off, the concentrated water is delivered to a concentrated water outlet OUT2 from a third control valve K3, and the water purifier completes an electrodialysis water purification work period.
In this embodiment, the control valve has only two states, on and off, and in one embodiment the control valve is a solenoid valve.
As shown in fig. 2, in an embodiment, the water purifier further includes a control module 30, a control end of the control module 30 is connected to the controlled end of the electrical purification module 10, the controlled end of the first control valve K1, the controlled end of the second control valve K2, the controlled end of the third control valve K3, the controlled end of the fourth control valve K4, the controlled end of the fifth control valve K5 and the controlled end of the sixth control valve K6, respectively, and the control module 30 is configured to control the electrical purification module 10 to perform a polarity mode switching operation according to a preset time interval and control each control valve of the waterway switching module 20 to perform a corresponding switching operation.
In this embodiment, the control module 30 controls the polarity switching of the internal electrode of the electrical purification module 10 and simultaneously controls the on/off of each control valve of the waterway switching module 20 to realize the drainage of each row of the concentrated water and the fresh water and the drainage of the wastewater before the polarity reversal, so as to reduce the pollution of the waterway, specifically, when the electrical purification module 10 is in the first polarity mode, the first control valve K1, the third control valve K3 and the fifth control valve K5 are controlled to be turned on, the second control valve K2, the fourth control valve K4 and the sixth control valve K6 are controlled to be turned off, and when the wastewater drainage work is performed, the second control valve K2, the fourth control valve K4 and the sixth control valve K6 are controlled to be turned on, and the first control valve K1, the third control valve K3 and the fifth control valve K5 are controlled to be turned off.
After the concentrated water in the waterway switching module 20 is discharged, the electrodes inside the electric purification module 10 are controlled to be switched from the first polarity mode to the second polarity mode, and when the electric purification module 10 is in the second polarity mode, the second control valve K2, the fourth control valve K4 and the fifth control valve K5 are controlled to be turned on, the first control valve K1, the third control valve K3 and the sixth control valve K6 are turned off, and when the waste discharge work is performed, the first control valve K1, the third control valve K3 and the sixth control valve K6 are controlled to be turned on, the second control valve K2, the fourth control valve K4 and the fifth control valve K5 are turned off, and after the concentrated water is discharged, the electric purification module 10 is controlled to be reversed, and the first control valve K1, the third control valve K3 and the fifth control valve K5 are controlled to be turned on, and the second control valve K2, the fourth control valve K4 and the sixth control valve K6 are turned off.
The control module 30 may be a controller such as an MCU or a single chip microcomputer, and the specific structure is not limited.
As shown in fig. 3, in an embodiment, the water purifier further includes a first TDS (total dissolved solids) detection module, a signal terminal of the first TDS detection module 60 is connected to a signal terminal of the control module 30, and the first TDS detection module 60 is disposed at the fresh water outlet OUT 1;
the first TDS detection module 60 is configured to detect a TDS value of the fresh water at the fresh water outlet OUT1 and feed the TDS value back to the control module 30;
In this embodiment, first TDS detection module 60 can be TDS probe or TDS monitor, first TDS detection module 60 fixed mounting is in fresh water export OUT1 department, and feed back the TDS value of the fresh water of fresh water export OUT1 exhaust to control module 30, be equipped with the predetermined TDS threshold value in the control module 30, wherein, the size of fresh water TDS value, the desalination rate with the RO membrane, raw water TDS, fresh water recovery rate is relevant, raw water TDS is higher, fresh water TDS is higher, be 400 according to raw water TDS, the desalination rate 95% calculates, fresh water TDS value is about 20 at 400 (1-95%). The electrode voltage through adjusting electrical purification module 10 changes the desalination rate size, and then changes fresh water TDS value, wherein, when increase electrode voltage, the desalination rate increase, fresh water TDS value is less, when reducing electrode voltage, the desalination rate reduces, fresh water TDS value is big more, consequently, when fresh water TDS value is not in presetting the TDS value, can correspond the size of adjusting electrode voltage, and then change the output TDS value of fresh water so that it matches with presetting the TDS threshold value, thereby satisfy water purification requirement and user demand.
As shown IN fig. 2, the water purifier further includes a raw water inlet IN, and the electric purification module 10 further has a fresh water inlet and a concentrated water inlet, which are respectively connected to the raw water inlet IN;
the water purifier also comprises a first flow regulating valve K7 for regulating the flow of the fresh water inlet of the electric purification module 10, and the first flow regulating valve K7 is arranged between the fresh water inlet of the electric purification module 10 and the raw water inlet IN;
the control module 30 is configured to compare the fresh water TDS value fed back by the first TDS detection module 60 with a preset TDS threshold, and control the electrode voltage of the electrical purification module 10 to decrease and/or control the flow rate of the first flow regulating valve K7 to increase when the fresh water TDS value is smaller than the preset TDS threshold, and control the electrode voltage of the electrical purification module 10 to increase and/or control the flow rate of the first flow regulating valve K7 to decrease when the fresh water TDS value is greater than the preset TDS threshold.
IN this embodiment, the raw water inlet IN inputs raw water, such as tap water, and the raw water is respectively conveyed to the fresh water inlet and the concentrated water inlet of the electrical purification module 10 through different pipes, and is respectively desalted and concentrated to respectively discharge fresh water and concentrated water from the first water discharge port and the second water discharge port, wherein a first flow regulating valve K7 for regulating the flow rate of the fresh water inlet is further disposed between the raw water inlet IN and the fresh water inlet of the electrical purification module 10, the control module 30 correspondingly regulates the fresh water flow and/or the electrode voltage according to a preset TDS threshold value to make the TDS value of the fresh water within the preset TDS threshold value, wherein one of the parameters can be fixed to regulate another parameter, such as the fixed electrode voltage to regulate the fresh water flow, the larger the fresh water flow is, the shorter the residence time IN the electrical purification module 10 is, the lower the desalination rate is, the larger the fresh water value output by the electrical purification module, conversely, when the fresh water flow rate is smaller, the residence time in the electrical purification module 10 is longer, the salt rejection rate is higher, and in addition, the two can be adjusted simultaneously, for example, first, the coarse adjustment is performed by using one parameter, and then the fine adjustment is performed by adjusting another parameter, and the specific adjustment mode is not limited, and can be selected according to the requirement.
In one embodiment, the water purifier further includes a second TDS detection module 70, a signal terminal of the second TDS detection module 70 is connected to a signal terminal of the control module 30, and the second TDS detection module 70 is disposed at the fresh water inlet of the electrical purification module 10;
the second TDS detection module 70 is configured to detect a TDS value of raw water at the fresh water inlet of the electrical purification module 10, and feed the TDS value back to the control module 30;
the control module 30 is configured to control the electrode voltage of the electrical purification module 10 and/or the flow rate of the first flow regulating valve K7 according to the raw water TDS value fed back by the second TDS detection module 70 and the fresh water TDS value fed back by the first TDS detection module 60, so that the fresh water TDS value fed back by the first TDS detection module 60 is within a preset TDS threshold.
In this embodiment, can know according to the computational formula of above-mentioned fresh water TDS value, the raw water TDS value is higher, under the unchangeable condition of other parameters, the fresh water TDS value is higher, therefore, acquire the raw water TDS value through second TDS detection module 70 after, the fresh water TDS value of electrical purification module 10 can be obtained to the desalination through adjusting electrical purification module 10, and the desalination accessible is adjusted fresh water inflow and/or electrode voltage realizes, thereby improve the regulation precision and the speed of fresh water TDS value, wherein, second TDS detection module 70 can be TDS probe or TDS monitor.
IN an embodiment, the water purifier further includes a second flow regulating valve K8 for regulating the flow amount of the concentrated water inlet of the electric purification module 10, and the second flow regulating valve K8 is disposed between the concentrated water inlet and the raw water inlet IN of the electric purification module 10.
In this embodiment, the raw water in the electrical purification module 10 is concentrated in the concentrated water channel to form concentrated water, and is discharged from the first water discharge port or the second water discharge port, and the concentrated water concentration in the electrical purification module 10 is adjusted by adjusting the flow rate of the concentrated water inlet, so as to adjust the fresh water recovery rate.
Further, the water purifier also comprises a water inlet valve K9 for controlling the inflow of raw water and a water pressure regulating valve K10 for controlling the water pressure of the raw water, wherein the raw water inlet IN, the water inlet valve K9 and the water pressure regulating valve K10 are sequentially connected.
In this embodiment, the water inlet valve K9 is used for adjusting whether raw water flows in and controlling the on-off of the water path of the whole system, the water pressure adjusting valve K10 is used for adjusting the water pressure of the raw water, so as to ensure that the working pressure of the electric purification module 10 is within a normal range, and the water pressure adjusting valve can be a pressure reducing valve or a pressure increasing valve and is specifically selected according to the water pressure requirement of the electric purification module.
Simultaneously, the water purifier is still including the first filter module 40 that is used for filtering raw water impurity, first filter module 40 includes leading filter core, leading filter core setting is between raw water import IN and water intaking valve K9, and, the water purifier is still including the second filter module 50 that is used for filtering fresh water impurity, second filter module 50 includes rearmounted filter core, rearmounted filter core setting is between water route switching module 20 and fresh water export OUT1, through setting up leading filter core and rearmounted filter core, can improve the purifying power of water purifier, improve user experience.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A water purifier, characterized by comprising:
a fresh water outlet;
a concentrated water outlet;
the electric purification module is provided with a first water outlet and a second water outlet and is used for switching a first polarity mode and a second polarity mode according to a preset time interval so as to control the first water outlet to discharge fresh water and control the second water outlet to discharge concentrated water in the first polarity mode, control the first water outlet to discharge concentrated water in the second polarity mode and control the second water outlet to discharge fresh water; and
the waterway switching module is used for controlling the first water outlet to be communicated with the fresh water outlet and controlling the second water outlet to be communicated with the concentrated water outlet when the electric purification module is in the first polarity mode; when the electrical purification module is in the second polarity mode, controlling the first drain outlet to be communicated with the concentrated water outlet and controlling the second drain outlet to be communicated with the fresh water outlet;
when the electric purification module is switched from the first polarity mode to the second polarity mode or within a preset time before the electric purification module is switched from the second polarity mode to the first polarity mode, the waterway switching module executes a waste discharge operation so as to discharge concentrated water in the waterway switching module from the concentrated water interface.
2. The water purifier of claim 1, wherein the waterway switching module includes a first control valve, a second control valve, a third control valve, a fourth control valve, a fifth control valve, a sixth control valve;
the water inlet of the first control valve and the water inlet of the second control valve are respectively connected with the first water outlet of the electric purification module, the water inlet of the third control valve and the water inlet of the fourth control valve are respectively connected with the first water outlet of the electric purification module,
the water outlet of the first control valve, the water outlet of the fourth control valve, the water inlet of the fifth control valve and the water inlet of the sixth control valve are respectively connected, the water outlet of the second control valve, the water outlet of the third control valve, the concentrated water outlet and the water outlet of the sixth control valve are respectively connected, and the water outlet of the fifth control valve is connected with the fresh water outlet; wherein,
when the electrical purification module is in a first polarity mode, the first control valve, the third control valve and the fifth control valve are turned on, the second control valve, the fourth control valve and the sixth control valve are turned off, and when a waste discharge work is performed, the second control valve, the fourth control valve and the sixth control valve are turned on, and the first control valve, the third control valve and the fifth control valve are turned off;
when the electrical purification module is in a second polarity mode, the second control valve, the fourth control valve and the fifth control valve are turned on, the first control valve, the third control valve and the sixth control valve are turned off, and when a waste discharge operation is performed, the first control valve, the third control valve and the sixth control valve are turned on, and the second control valve, the fourth control valve and the fifth control valve are turned off.
3. The water purifier of claim 2, further comprising a control module, wherein a control end of the control module is connected to the controlled end of the electrical purification module, the controlled end of the first control valve, the controlled end of the second control valve, the controlled end of the third control valve, the controlled end of the fourth control valve, the controlled end of the fifth control valve, and the controlled end of the sixth control valve, respectively, and the control module is configured to control the electrical purification module to perform the polarity mode switching operation according to a preset time interval and control the corresponding switching operation of each control valve of the waterway switching module.
4. The water purifier of claim 2 further comprising a first TDS detection module having a signal terminal connected to a signal terminal of the control module, the first TDS detection module disposed at the fresh water outlet;
the first TDS detection module is used for detecting a TDS value of the fresh water at the fresh water outlet and feeding the TDS value back to the control module;
the control module is used for comparing the fresh water TDS value fed back by the first TDS detection module with a preset TDS threshold value, controlling the electrode voltage of the electric purification module to increase when the fresh water TDS value is smaller than the preset TDS threshold value, and controlling the electrode voltage of the electric purification module to decrease when the fresh water TDS value is larger than the preset TDS threshold value.
5. The water purifier of claim 4, wherein the water purifier further comprises a raw water inlet, the electrical purification module further having a fresh water inlet and a concentrated water inlet, the fresh water inlet and the concentrated water inlet being connected to the raw water inlet, respectively;
the water purifier also comprises a first flow regulating valve for regulating the flow of the fresh water inlet of the electric purification module, and the first flow regulating valve is arranged between the fresh water inlet of the electric purification module and the raw water inlet;
the control module is used for comparing the fresh water TDS value fed back by the first TDS detection module with a preset TDS threshold value, controlling the electrode voltage of the electric purification module to be reduced and/or controlling the flow of the first flow regulating valve to be increased when the fresh water TDS value is smaller than the preset TDS threshold value, and controlling the electrode voltage of the electric purification module to be increased and/or controlling the flow of the first flow regulating valve to be reduced when the fresh water TDS value is larger than the preset TDS threshold value.
6. The water purifier of claim 5, further comprising a second TDS detection module having a signal terminal connected to the signal terminal of the control module, the second TDS detection module disposed at the fresh water inlet of the electrical purification module;
the second TDS detection module is used for detecting a raw water TDS value of a fresh water inlet of the electric purification module and feeding the raw water TDS value back to the control module;
the control module is used for controlling the electrode voltage of the electric purification module and/or controlling the flow of the first flow regulating valve according to the raw water TDS value fed back by the second TDS detection module and the fresh water TDS value fed back by the first TDS detection module, so that the fresh water TDS value fed back by the first TDS detection module is within a preset TDS threshold value.
7. The water purifier of claim 5, further comprising a second flow regulating valve for regulating a flow rate of the concentrated water inlet of the electric purification module, the second flow regulating valve being disposed between the concentrated water inlet of the electric purification module and the raw water inlet.
8. The water purifier as claimed in any one of claims 1 to 7, further comprising a feed valve for controlling inflow of raw water and a water pressure regulating valve for controlling a water pressure of raw water, wherein the raw water inlet, the feed valve and the water pressure regulating valve are connected in this order.
9. The water purifier of claim 8, further comprising a first filter module for filtering impurities from the raw water, the first filter module including a pre-filter element disposed between the raw water inlet and the water inlet valve.
10. The water purifier of claim 9 further comprising a second filter module for filtering fresh water contaminants, the second filter module including a post-filter element disposed between the waterway switch module and the fresh water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910990911.6A CN112678928A (en) | 2019-10-17 | 2019-10-17 | Water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910990911.6A CN112678928A (en) | 2019-10-17 | 2019-10-17 | Water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112678928A true CN112678928A (en) | 2021-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910990911.6A Withdrawn CN112678928A (en) | 2019-10-17 | 2019-10-17 | Water purifier |
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| CN (1) | CN112678928A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114163034A (en) * | 2021-05-21 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system of water making equipment and water making equipment |
| CN114314775A (en) * | 2022-01-10 | 2022-04-12 | 南京壹净电器科技有限公司 | Water purification method and system with double purification water paths |
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| CN2252809Y (en) * | 1996-06-03 | 1997-04-23 | 陈�光 | Electrical dialysis water treatment unit |
| CN108423775A (en) * | 2018-03-24 | 2018-08-21 | 佛山市云米电器科技有限公司 | Ionize purifier and family's management system for internet of things |
| US20180265387A1 (en) * | 2017-03-13 | 2018-09-20 | Oasen N.V. | Method for purifying water as well as plant suitable for said method |
| CN109336309A (en) * | 2018-11-30 | 2019-02-15 | 佛山市云米电器科技有限公司 | A kind of household water purifier and domestic water purifying machine that water quality is controllable |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2252809Y (en) * | 1996-06-03 | 1997-04-23 | 陈�光 | Electrical dialysis water treatment unit |
| US20180265387A1 (en) * | 2017-03-13 | 2018-09-20 | Oasen N.V. | Method for purifying water as well as plant suitable for said method |
| CN108423775A (en) * | 2018-03-24 | 2018-08-21 | 佛山市云米电器科技有限公司 | Ionize purifier and family's management system for internet of things |
| CN109336309A (en) * | 2018-11-30 | 2019-02-15 | 佛山市云米电器科技有限公司 | A kind of household water purifier and domestic water purifying machine that water quality is controllable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114163034A (en) * | 2021-05-21 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system of water making equipment and water making equipment |
| CN114314775A (en) * | 2022-01-10 | 2022-04-12 | 南京壹净电器科技有限公司 | Water purification method and system with double purification water paths |
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Application publication date: 20210420 |