CN212954670U - Stable output formula water purification system of pure water and water purifier - Google Patents
Stable output formula water purification system of pure water and water purifier Download PDFInfo
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- CN212954670U CN212954670U CN202020325541.2U CN202020325541U CN212954670U CN 212954670 U CN212954670 U CN 212954670U CN 202020325541 U CN202020325541 U CN 202020325541U CN 212954670 U CN212954670 U CN 212954670U
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Abstract
The utility model provides a water purifier, output formula water purification system is stabilized to pure water is provided with main filter mechanism, electricity regeneration filter unit and valve body, main filter mechanism's pure water delivery outlet and first pure water pipeline, second pure water pipeline intercommunication, second pure water pipeline and electricity regeneration filter unit's water inlet intercommunication, electricity regeneration filter unit's pure water delivery outlet and first pure water pipeline intercommunication, through valve body control main filter mechanism's pure water delivery outlet and first pure water pipeline intercommunication or control main filter mechanism's pure water delivery outlet and second pure water pipeline intercommunication. In a period of time that the water purifier begins work, the pure water delivery outlet and the second pure water pipeline intercommunication through valve body control main filter mechanism, through electric regeneration filter unit to main pure water of handling the pure water that obtains electric regeneration filter unit's pure water, produce water as whole water treatment system's pure water with the pure water, can the higher problem of salt content of the first cup of pure water of effectual solution whole water treatment system output, improve the purifying effect of quality of water, optimize user's experience.
Description
Technical Field
The utility model relates to a water purifier technical field, in particular to output formula water purification system and water purifier are stabilized to pure water.
Background
The resin filter element is suitable for refining water sources and biochemical substances with high salt content or decoloring sugar liquor, has good organic matter adsorption and odor removal capabilities, and is commonly used for hard water softening, desalted water, separation of pure water rare element antibiotics, extraction of antibiotics and the like. Regeneration of the resin filter element is carried out by using a dilute solution of sodium chloride and water.
In the prior art, the water purification working condition process generally comprises the steps that raw water is firstly discharged into a preposed filter element through a water inlet pipeline, is discharged into a reverse osmosis membrane for secondary filtration after primary filtration, is treated by the reverse osmosis membrane to obtain pure water and concentrated water, the pure water is discharged through a pure water pipeline, and the concentrated water is discharged through a concentrated water pipeline. And when the water purifier is kept still for a long time and then is subjected to a water purification working condition again, the salt content of the pure water discharged for the first time is high, and the problem is commonly called as 'head cup water'.
Therefore, it is necessary to provide a water purification system and a water purifier with stable pure water output to overcome the deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model is to avoid the disadvantages of the prior art and provide a stable pure water output type water purification system which is necessary to solve the disadvantages of the prior art. This formula water purification system is stabilized to pure water output can reduce the salt content of first cup water, optimizes user's experience.
The above object of the present invention is achieved by the following technical means.
The utility model provides a pure water stable output formula water purification system is provided with main filter mechanism, electricity regeneration filter unit and valve body.
Preferably, the pure water outlet of the main filtering mechanism is communicated with the first pure water pipeline and the second pure water pipeline, the second pure water pipeline is communicated with the water inlet of the electric regeneration filtering unit, and the pure water outlet of the electric regeneration filtering unit is communicated with the first pure water pipeline.
In a time period delta T from the beginning of water purification, raw water is input into the main filtering mechanism through the water inlet pipeline, main treatment pure water and main treatment concentrated water are obtained after the raw water is treated by the main filtering mechanism, and the main treatment concentrated water is discharged through the main concentrated water outlet.
The main treatment pure water is not directly conveyed to the total pure water output port, the main treatment pure water is conveyed to the electric regeneration filtering unit as raw water of the electric regeneration filtering unit, and the pure water obtained by filtering the main treatment pure water by the electric regeneration filtering unit is conveyed to the total pure water output port as pure water produced water of the whole water treatment system.
And after a time interval delta T from the beginning of water purification, the main treatment pure water is directly conveyed to a total pure water output port to be used as the pure water production water of the whole water treatment system.
The pure water output port of the main filtering mechanism is controlled by the valve body to be communicated with the first pure water pipeline or the pure water output port of the main filtering mechanism is controlled to be communicated with the second pure water pipeline.
Preferably, the electric regeneration filtering unit is provided with a desalination water path;
the desalination water path is provided with a cation exchange unit and an anion exchange unit, a first anion exchange membrane is clamped between the cation exchange unit and the anion exchange unit, a cation exchange membrane is arranged at one end, far away from the first anion exchange membrane, of the cation exchange unit, and a second anion exchange membrane is arranged at one end, far away from the first anion exchange membrane, of the anion exchange unit.
Preferably, the cation exchange unit and the cation exchange membrane together form a first desalination water path during desalination, the anion exchange unit, the first anion exchange membrane and the second anion exchange membrane together form a second desalination water path during desalination, and water passes through the first desalination water path and the second desalination water path and is then discharged as pure water.
Preferably, the electric regeneration filtering unit is also provided with a regeneration water path, a positive plate and a negative plate for electrolyzing water;
the regeneration water path is provided with a first regeneration water path and a second regeneration water path, the first regeneration water path comprises a second anion exchange membrane, the second regeneration water path comprises a cation exchange membrane, and the regeneration water is discharged as concentrated water through the first regeneration water path and the second regeneration water path;
the positive plate sets up in the one side of keeping away from anion exchange membrane in first regeneration water route, and the negative plate sets up in the one side of keeping away from cation exchange membrane in second regeneration water route.
In the desalination working condition, the regeneration water channel is closed, no electrolysis voltage is applied, and raw water passes through the first desalination water channel and the second desalination water channel and then is discharged as pure water;
in the first desalination water path, positive salt ions to be desalinated in raw water are replaced by hydrogen ions in the cation exchange unit, the positive salt ions are adsorbed by the cation exchange unit, the hydrogen ions are replaced, and the replaced hydrogen ions enter the second desalination water path along with the raw water; in the second desalination water path, the salt negative ions in the raw water are replaced by hydroxide ions in the anion exchange unit, the salt negative ions are absorbed by the anion exchange unit, and the hydroxide ions are replaced; the hydroxyl ions react with the hydrogen ions to generate water, and the water is discharged in the form of pure water.
Preferably, in the regeneration working condition, the desalination water path is closed, the electrolysis voltage is applied, and the regenerated water passes through the first regeneration water path and the second regeneration water path in sequence and then is discharged as concentrated water;
under the condition of applying electrolytic voltage, the water generated by hydrogen ions and hydroxyl ions permeating through the first anion exchange membrane under the desalting working condition is decomposed into hydrogen ions and hydroxyl ions again, the hydroxyl ions move towards the positive plate, in the process of the movement of the hydroxyl ions, the water enters the anion exchange unit through the first anion exchange membrane to replace the salt negative ions, and under the condition of electric attraction of the positive plate, the replaced salt negative ions enter the first regeneration water path through the second anions;
meanwhile, hydrogen ions enter the cation exchange unit along with the water which is not electrolyzed, salt positive ions in the cation exchange unit are replaced, the replaced salt positive ions move towards the negative plate, and the replaced salt positive ions enter a second regeneration water channel through the cation exchange membrane under the condition that the negative plate is electrically attracted;
in the second regeneration water path, the replaced salt positive ions and salt negative ions are combined, and finally, the salt positive ions and salt negative ions are discharged as concentrated water from the second regeneration water path.
Preferably, the main filtering mechanism is provided with a pre-filtering unit and a membrane filtering unit, a water outlet pipeline of the pre-filtering unit is communicated with a water inlet of the membrane filtering unit, and a pure water outlet of the membrane filtering unit is communicated with the first pure water pipeline and the second pure water pipeline.
Preferably, the cation exchange unit is provided as a cation exchange resin.
Preferably, the cation exchange resin is one of a strongly acidic cation exchange resin, a weakly acidic cation exchange resin, or a combination of both.
Preferably, the anion exchange unit is provided as an anion exchange resin.
Preferably, the anion exchange resin is one of a strongly basic anion exchange resin, a weakly basic anion exchange resin, or a combination of both.
The utility model discloses an output formula water purification system is stabilized to pure water, be provided with main filter mechanism, electricity regeneration filter unit and valve body, main filter mechanism's pure water delivery outlet and first pure water pipeline, second pure water pipeline intercommunication, second pure water pipeline and electricity regeneration filter unit's water inlet intercommunication, electricity regeneration filter unit's pure water delivery outlet and first pure water pipeline intercommunication, pure water delivery outlet and first pure water pipeline intercommunication or control main filter mechanism's pure water delivery outlet and second pure water pipeline intercommunication through valve body control main filter mechanism. In a period of time that water purification begins work, the pure water delivery outlet and the second pure water pipeline intercommunication through valve body control main filter mechanism, carry out secondary filter to the main processing pure water through electric regeneration filter unit and obtain electric regeneration filter unit's pure water, carry the pure water to total pure water delivery outlet as the pure water product water of whole water treatment system, the higher problem of salt content that can effectual solution head cup pure water product water, improve the purifying effect of quality of water, optimize user's experience.
Another object of the present invention is to avoid the disadvantages of the prior art and to provide a water purifier which is necessary to solve the problems of the prior art. The water purifier can reduce the problem that the salt content of the head cup water produced by the whole water treatment system is higher, and the experience of a user is optimized.
The above object of the present invention is achieved by the following technical means.
Provided is a water purifier, a pure water stable output type water purification system of which is provided with a main filter mechanism, an electric regeneration filter unit and a valve body.
Preferably, the pure water outlet of the main filtering mechanism is communicated with the first pure water pipeline and the second pure water pipeline, the second pure water pipeline is communicated with the water inlet of the electric regeneration filtering unit, and the pure water outlet of the electric regeneration filtering unit is communicated with the first pure water pipeline.
In a time period delta T from the beginning of water purification, raw water is input into the main filtering mechanism through the water inlet pipeline, main treatment pure water and main treatment concentrated water are obtained after the raw water is treated by the main filtering mechanism, and the main treatment concentrated water is discharged through the main concentrated water outlet.
The main treatment pure water is not directly conveyed to the total pure water output port, the main treatment pure water is conveyed to the electric regeneration filtering unit as raw water of the electric regeneration filtering unit, and the pure water obtained by filtering the main treatment pure water by the electric regeneration filtering unit is conveyed to the total pure water output port as pure water produced water of the whole water treatment system.
And after a time interval delta T from the beginning of water purification, the main treatment pure water is directly conveyed to a total pure water output port to be used as the pure water production water of the whole water treatment system.
The pure water output port of the main filtering mechanism is controlled by the valve body to be communicated with the first pure water pipeline or the pure water output port of the main filtering mechanism is controlled to be communicated with the second pure water pipeline.
Preferably, the electric regeneration filtering unit is provided with a desalination water path;
the desalination water path is provided with a cation exchange unit and an anion exchange unit, a first anion exchange membrane is clamped between the cation exchange unit and the anion exchange unit, a cation exchange membrane is arranged at one end, far away from the first anion exchange membrane, of the cation exchange unit, and a second anion exchange membrane is arranged at one end, far away from the first anion exchange membrane, of the anion exchange unit.
Preferably, the cation exchange unit and the cation exchange membrane together form a first desalination water path during desalination, the anion exchange unit, the first anion exchange membrane and the second anion exchange membrane together form a second desalination water path during desalination, and water passes through the first desalination water path and the second desalination water path and is then discharged as pure water.
Preferably, the electric regeneration filtering unit is also provided with a regeneration water path, a positive plate and a negative plate for electrolyzing water;
the regeneration water path is provided with a first regeneration water path and a second regeneration water path, the first regeneration water path comprises a second anion exchange membrane, the second regeneration water path comprises a cation exchange membrane, and the regeneration water is discharged as concentrated water through the first regeneration water path and the second regeneration water path;
the positive plate sets up in the one side of keeping away from anion exchange membrane in first regeneration water route, and the negative plate sets up in the one side of keeping away from cation exchange membrane in second regeneration water route.
In the desalination working condition, the regeneration water channel is closed, no electrolysis voltage is applied, and raw water passes through the first desalination water channel and the second desalination water channel and then is discharged as pure water;
in the first desalination water path, positive salt ions to be desalinated in raw water are replaced by hydrogen ions in the cation exchange unit, the positive salt ions are adsorbed by the cation exchange unit, the hydrogen ions are replaced, and the replaced hydrogen ions enter the second desalination water path along with the raw water; in the second desalination water path, the salt negative ions in the raw water are replaced by hydroxide ions in the anion exchange unit, the salt negative ions are absorbed by the anion exchange unit, and the hydroxide ions are replaced; the hydroxyl ions react with the hydrogen ions to generate water, and the water is discharged in the form of pure water.
Preferably, in the regeneration working condition, the desalination water path is closed, the electrolysis voltage is applied, and the regenerated water passes through the first regeneration water path and the second regeneration water path in sequence and then is discharged as concentrated water;
under the condition of applying electrolytic voltage, the water generated by hydrogen ions and hydroxyl ions permeating through the first anion exchange membrane under the desalting working condition is decomposed into hydrogen ions and hydroxyl ions again, the hydroxyl ions move towards the positive plate, in the process of the movement of the hydroxyl ions, the water enters the anion exchange unit through the first anion exchange membrane to replace the salt negative ions, and under the condition of electric attraction of the positive plate, the replaced salt negative ions enter the first regeneration water path through the second anions;
meanwhile, hydrogen ions enter the cation exchange unit along with the water which is not electrolyzed, salt positive ions in the cation exchange unit are replaced, the replaced salt positive ions move towards the negative plate, and the replaced salt positive ions enter a second regeneration water channel through the cation exchange membrane under the condition that the negative plate is electrically attracted;
in the second regeneration water path, the replaced salt positive ions and salt negative ions are combined, and finally, the salt positive ions and salt negative ions are discharged as concentrated water from the second regeneration water path.
Preferably, the main filtering mechanism is provided with a pre-filtering unit and a membrane filtering unit, a water outlet pipeline of the pre-filtering unit is communicated with a water inlet of the membrane filtering unit, and a pure water outlet of the membrane filtering unit is communicated with the first pure water pipeline and the second pure water pipeline.
Preferably, the cation exchange unit is provided as a cation exchange resin.
Preferably, the cation exchange resin is one of a strongly acidic cation exchange resin, a weakly acidic cation exchange resin, or a combination of both.
Preferably, the anion exchange unit is provided as an anion exchange resin.
Preferably, the anion exchange resin is one of a strongly basic anion exchange resin, a weakly basic anion exchange resin, or a combination of both.
This output formula water purification system is stabilized to pure water of water purifier, be provided with main filter mechanism, electricity regeneration filter unit and valve body, main filter mechanism's pure water delivery outlet and first pure water pipeline, second pure water pipeline intercommunication, second pure water pipeline and electricity regeneration filter unit's water inlet intercommunication, electricity regeneration filter unit's pure water delivery outlet and first pure water pipeline intercommunication, the pure water delivery outlet and the first pure water pipeline intercommunication of main filter mechanism of control through the valve body or the pure water delivery outlet and the second pure water pipeline intercommunication of control main filter mechanism. In a period of time when water purification just begins to work, the pure water delivery outlet and the second pure water pipeline intercommunication through valve body control main filter mechanism, carry out secondary filter to the main pure water of handling through electric regeneration filter unit and obtain electric regeneration filter unit's pure water, carry the pure water to total pure water delivery outlet as the pure water product water of whole water treatment system, can effectually solve the higher problem of salt content of head cup pure water product water, improve the purifying effect of quality of water, optimize user's experience.
Drawings
The present invention will be further described with reference to the accompanying drawings, but the contents in the drawings do not constitute any limitation to the present invention.
Fig. 1 is a schematic diagram of a stable pure water output type water purification system of the present invention.
Fig. 2 is a schematic diagram of the desalination condition of the water purification system with stable pure water output of the present invention.
Fig. 3 is a schematic view of the regeneration operation condition of the pure water stable output type water purification system of the present invention.
In fig. 1 to 3, the following are included:
a main filtering mechanism 100,
A membrane filtration unit 110, a pre-filtration unit 120,
An electrically regenerative filter unit 200,
A first desalination water path 210,
A cation exchange unit 211, a cation exchange membrane 212,
A second desalination water channel 220,
An anion exchange unit 221, a first anion exchange membrane 222, a second anion exchange membrane 223,
A first regeneration water passage 230, a second regeneration water passage 240,
Detailed Description
The invention will be further described with reference to the following examples.
Example 1.
A water purification system of a stable pure water output type is provided with a main filter mechanism 100, an electric regeneration filter unit 200, and a valve body 300, as shown in FIG. 1.
Specifically, the pure water outlet of the main filter mechanism 100 is communicated with a first pure water pipeline 400 and a second pure water pipeline 500, the second pure water pipeline 500 is communicated with the water inlet of the electric regeneration filter unit 200, and the pure water outlet of the electric regeneration filter unit 200 is communicated with the first pure water pipeline 400. The pure water outlet of the main filtering mechanism 100 is controlled to communicate with the first pure water pipe 400 or the pure water outlet of the main filtering mechanism 100 is controlled to communicate with the second pure water pipe 500 by the valve body 300.
Specifically, when the water purifier after a period of time will be stood, the pure water outlet of the main filtering mechanism 100 is controlled by the valve body 300 to be communicated with the second pure water pipeline 500, so that the main treated pure water which does not meet the water quality requirement can be treated by the electric regeneration filtering unit 200, and the problem that the salt content of the 'first cup water' is high is solved.
The specific water purification mode is as follows:
in a time period delta T from the beginning of water purification, raw water is input into the main filtering mechanism 100 through a water inlet pipeline, main treated pure water and main treated concentrated water are obtained after treatment of the main filtering mechanism 100, and the main treated concentrated water is discharged through a main concentrated water output port;
the main treatment pure water is not directly conveyed to the total pure water outlet, the main treatment pure water is conveyed to the electric regeneration filtering unit 200 as raw water of the electric regeneration filtering unit, and the pure water obtained by filtering the main treatment pure water by the electric regeneration filtering unit 200 is conveyed to the total pure water outlet as pure water produced water of the whole water treatment system.
After a time period Δ T from the start of the purified water, the main treatment purified water is directly supplied to the total purified water outlet as the purified water produced water of the overall water treatment system, and the main treatment purified water is not supplied to the electrical regeneration filter unit 200.
When water is produced, the pure water which is just output is often high in salt content and cannot meet the requirement of the pure water, so that the problem of 'head cup water' is commonly known in the industry. In the prior art, the water purifier usually drains pure water which is just produced in a period of time when water production is started, and the pure water is used after the water production is started for a period of time. In the stable pure water output type water purification method of the present embodiment, in the Δ T time period when water production is started, the produced main treatment pure water does not meet the requirement of pure water and cannot be directly used, the main treatment pure water is input to the electric regeneration filtering unit 200 for filtration and desalination, and the desalinated pure water is used as pure water production water of the whole water treatment system. Therefore, from the moment of starting to make water, the pure water produced by the whole system meets the requirement of the pure water, and the problem of 'head cup water' is solved.
In this embodiment, Δ T ranges from 0.1 to 10 seconds. Specifically, Δ T is preferably 0.5 s. It should be noted that the value of Δ T may be 0.4s, may also be 0.6s, or may take other values, which may be selected by those skilled in the art as appropriate, and is not limited herein.
In the present embodiment, the supply of the main process pure water to the total pure water outlet or to the electrical regeneration filter unit 200 is controlled by the valve body 300. Specifically, during the time period Δ T from the start of purified water, the valve body 300 controls the main treatment purified water to be supplied to the electric regeneration filter unit 200; after the time interval Δ T from the start of the purified water, the valve body 300 controls the main process purified water to be supplied to the total purified water outlet.
Specifically, the main filtering mechanism 100 is provided with a pre-filtering unit 120 and a membrane filtering unit 110, a water outlet pipeline of the pre-filtering unit 120 is communicated with a water inlet of the membrane filtering unit 110, and a pure water outlet of the membrane filtering unit 110 is communicated with a first pure water pipeline 400 and a second pure water pipeline 500. It should be noted that the membrane filtration unit 110 is provided with a reverse osmosis filter element, and the pre-filtration unit 120 may be provided with a PP cotton filter element, an activated carbon filter element, or other filter elements, and those skilled in the art can freely set the filter elements according to actual situations, which is not limited herein.
In the present embodiment, the electrically regenerated filter unit 200 is provided as an electrically regenerated resin filter cartridge having an ion exchange function, and is capable of adsorbing salt positive ions and salt negative ions in water onto a resin during desalination, replacing hydrogen ions and hydroxyl ions, and discharging them as pure water.
The electric regenerative filtration unit 200 of the present embodiment is provided with a desalination water circuit, as shown in fig. 2;
the desalination water path is provided with a cation exchange unit 211 and an anion exchange unit 221, a first anion exchange membrane 222 is clamped between the cation exchange unit 211 and the anion exchange unit 221, a cation exchange membrane 212 is arranged at one end, far away from the first anion exchange membrane 222, of the cation exchange unit 211, and a second anion exchange membrane 223 is arranged at one end, far away from the first anion exchange membrane 222, of the anion exchange unit 221.
Specifically, the cation exchange unit 211 and the cation exchange membrane 212 together form a first desalination water channel 210 during desalination, the anion exchange unit 221, the first anion exchange membrane 222, and the second anion exchange membrane 223 together form a second desalination water channel 220 during desalination, and water passes through the first desalination water channel 210 and the second desalination water channel 220 and is discharged as pure water.
As shown in fig. 3, the electric regenerative filter unit 200 of the present embodiment is further provided with a regenerative water path, a positive electrode plate and a negative electrode plate for electrolyzing water;
the regeneration water path is provided with a first regeneration water path 230 and a second regeneration water path 240, the first regeneration water path 230 comprises a second anion exchange membrane 223, the second regeneration water path 240 comprises a cation exchange membrane 212, and the regeneration water passes through the first regeneration water path 230 and the second regeneration water path 240 and is discharged as concentrated water;
the positive electrode plate is disposed on the side of the first regeneration water passage 230 away from the anion exchange membrane, and the negative electrode plate is disposed on the side of the second regeneration water passage 240 away from the cation exchange membrane 212.
In the desalination working condition, the regeneration water path is closed, no electrolysis voltage is applied, and raw water passes through the first desalination water path 210 and the second desalination water path 220 and then is discharged as pure water;
in the first desalination water path 210, positive salt ions to be desalinated in the raw water are replaced by hydrogen ions in the cation exchange unit 211, the positive salt ions are adsorbed by the cation exchange unit 211, the hydrogen ions are replaced, and the replaced hydrogen ions enter the second desalination water path 220 along with the raw water; in the second desalination water path 220, the salt anions in the raw water are replaced by hydroxide ions in the anion exchange unit 221, the salt anions are adsorbed by the anion exchange unit 221, and the hydroxide ions are replaced; the hydroxyl ions react with the hydrogen ions to generate water, and the water is discharged in the form of pure water.
In the regeneration working condition, the desalination water path is closed, the electrolysis voltage is applied, and the regenerated water passes through the first regeneration water path 230 and the second regeneration water path 240 in sequence and then is discharged as concentrated water;
under the condition of applying electrolysis voltage, the water generated by hydrogen ions and hydroxyl ions permeating through the first anion exchange membrane 222 under the desalting condition is decomposed into hydrogen ions and hydroxyl ions again, the hydroxyl ions move towards the positive plate, the water enters the anion exchange unit 221 through the first anion exchange membrane 222 in the process of moving the hydroxyl ions to replace the salt negative ions, and the replaced salt negative ions enter the first regenerated water path 230 through the second anions under the condition of electric attraction of the positive plate;
meanwhile, the hydrogen ions enter the cation exchange unit 211 together with the non-electrolyzed water, and displace the salt positive ions in the cation exchange unit 211, the displaced salt positive ions move to the negative electrode plate, and the displaced salt positive ions enter the second regeneration water path 240 through the cation exchange membrane 212 under the condition that the negative electrode plate is electrically attracted;
in the second regeneration water path 240, the replaced salt positive ions and salt negative ions are combined, and finally discharged as concentrated water from the second regeneration water path 240.
The utility model discloses an output formula water purification system is stabilized to pure water, in the period of the water purifier just started work, through the pure water delivery outlet and the electric regeneration filter unit 200 intercommunication of valve body 300 control main filter mechanism 100, filter once more through the main treatment pure water that electric regeneration filter unit 200 produced main filter mechanism 100, can solve the higher problem of first cup pure water salt content of whole water treatment system output, improve the purifying effect of quality of water, optimize user's experience.
Example 2.
A pure water stable output type water purification system is otherwise the same as that of embodiment 1 except that a cation exchange unit 211 is provided as a cation exchange resin.
The cation exchange resin in the present embodiment is provided as one of a strongly acidic cation exchange resin, a weakly acidic cation exchange resin, or a combination of both. It should be noted that, when performing specific design, a person skilled in the art may perform the design according to actual situations, and no specific requirement is made here.
The anion exchange unit 221 in this embodiment is provided as an anion exchange resin. The anion exchange resin is one of strong base anion exchange resin, weak base anion exchange resin or the combination of the two. It should be noted that, when performing specific design, a person skilled in the art may perform the design according to actual situations, and no specific requirement is made here.
The utility model discloses an output formula water purification system is stabilized to pure water adopts cation exchange resin and anion exchange resin to carry out the replacement of ion, can improve the life of filter core.
Example 3.
A water purifier having a pure water stable output type water purification system according to embodiment 1 or embodiment 2 is provided with a main filter mechanism 100, an electric regeneration filter unit 200, and a valve body 300.
Specifically, the pure water outlet of the main filter mechanism 100 is communicated with a first pure water pipeline 400 and a second pure water pipeline 500, the second pure water pipeline 500 is communicated with the water inlet of the electric regeneration filter unit 200, and the pure water outlet of the electric regeneration filter unit 200 is communicated with the first pure water pipeline 400. The pure water outlet of the main filtering mechanism 100 is controlled to communicate with the first pure water pipe 400 or the pure water outlet of the main filtering mechanism 100 is controlled to communicate with the second pure water pipe 500 by the valve body 300.
Specifically, when the water purifier after a period of standing is reused, the pure water outlet of the main filtering mechanism 100 is controlled by the valve body 300 to be communicated with the second pure water pipeline 500, so that the main treated pure water which does not meet the water quality requirement can be treated by the electric regeneration filtering unit 200, and the problem of high salt content of the 'first cup water' is solved.
The specific water purification mode is as follows:
in a time period delta T from the beginning of water purification, raw water is input into the main filtering mechanism 100 through a water inlet pipeline, main treated pure water and main treated concentrated water are obtained after treatment of the main filtering mechanism 100, and the main treated concentrated water is discharged through a main concentrated water output port;
the main treatment pure water is not directly conveyed to the total pure water outlet, the main treatment pure water is conveyed to the electric regeneration filtering unit 200 as raw water of the electric regeneration filtering unit, and the pure water obtained by filtering the main treatment pure water by the electric regeneration filtering unit 200 is conveyed to the total pure water outlet as pure water produced water of the whole water treatment system.
After a time period Δ T from the start of the purified water, the main treatment purified water is directly supplied to the total purified water outlet as the purified water produced water of the overall water treatment system, and the main treatment purified water is not supplied to the electrical regeneration filter unit 200.
When water is produced, the pure water which is just output is often high in salt content and cannot meet the requirement of the pure water, so that the problem of 'head cup water' is commonly known in the industry. In the prior art, the water purifier usually drains pure water which is just produced in a period of time when water production is started, and the pure water is used after the water production is started for a period of time. In the stable pure water output type water purification method of the present embodiment, in the Δ T time period when water production is started, the produced main treatment pure water does not meet the requirement of pure water and cannot be directly used, the main treatment pure water is input to the electric regeneration filtering unit 200 for filtration and desalination, and the desalinated pure water is used as pure water production water of the whole water treatment system. Therefore, from the moment of starting to make water, the pure water produced by the whole system meets the requirement of the pure water, and the problem of 'head cup water' is solved.
In this embodiment, Δ T ranges from 0.1 to 10 seconds. Specifically, Δ T is preferably 0.5 s. It should be noted that the value of Δ T may be 0.4s, may also be 0.6s, or may take other values, which may be selected by those skilled in the art as appropriate, and is not limited herein.
In the present embodiment, the supply of the main process pure water to the total pure water outlet or to the electrical regeneration filter unit 200 is controlled by the valve body 300. Specifically, during the time period Δ T from the start of purified water, the valve body 300 controls the main treatment purified water to be supplied to the electric regeneration filter unit 200; after the time interval Δ T from the start of the purified water, the valve body 300 controls the main process purified water to be supplied to the total purified water outlet.
Specifically, the main filtering mechanism 100 is provided with a pre-filtering unit 120 and a membrane filtering unit 110, a water outlet pipeline of the pre-filtering unit 120 is communicated with a water inlet of the membrane filtering unit 110, and a pure water outlet of the membrane filtering unit 110 is communicated with a first pure water pipeline 400 and a second pure water pipeline 500. It should be noted that the membrane filtration unit 110 is provided with a reverse osmosis filter element, and the pre-filtration unit 120 may be provided with a PP cotton filter element, an activated carbon filter element, or other filter elements, and those skilled in the art can freely set the filter elements according to actual situations, which is not limited herein.
In the present embodiment, the electrically regenerated filter unit 200 is provided as an electrically regenerated resin filter cartridge having an ion exchange function, and is capable of adsorbing salt positive ions and salt negative ions in water onto a resin during desalination, replacing hydrogen ions and hydroxyl ions, and discharging them as pure water.
The electrical regeneration filter unit 200 of the present embodiment is provided with a desalination water circuit;
the desalination water path is provided with a cation exchange unit 211 and an anion exchange unit 221, a first anion exchange membrane 222 is clamped between the cation exchange unit 211 and the anion exchange unit 221, a cation exchange membrane 212 is arranged at one end, far away from the first anion exchange membrane 222, of the cation exchange unit 211, and a second anion exchange membrane 223 is arranged at one end, far away from the first anion exchange membrane 222, of the anion exchange unit 221.
Specifically, the cation exchange unit 211 and the cation exchange membrane 212 together form a first desalination water channel 210 during desalination, the anion exchange unit 221, the first anion exchange membrane 222, and the second anion exchange membrane 223 together form a second desalination water channel 220 during desalination, and water passes through the first desalination water channel 210 and the second desalination water channel 220 and is discharged as pure water. The cation exchange unit 211 is provided as a cation exchange resin.
The cation exchange resin in the present embodiment is provided as one of a strongly acidic cation exchange resin, a weakly acidic cation exchange resin, or a combination of both. It should be noted that, when performing specific design, a person skilled in the art may perform the design according to actual situations, and no specific requirement is made here.
The anion exchange unit 221 in this embodiment is provided as an anion exchange resin. The anion exchange resin is one of strong base anion exchange resin, weak base anion exchange resin or the combination of the two. It should be noted that, when performing specific design, a person skilled in the art may perform the design according to actual situations, and no specific requirement is made here.
The electrical regeneration filter unit 200 of the present embodiment is further provided with a regeneration water path, a positive electrode plate and a negative electrode plate for electrolyzing water;
the regeneration water path is provided with a first regeneration water path 230 and a second regeneration water path 240, the first regeneration water path 230 comprises a second anion exchange membrane 223, the second regeneration water path 240 comprises a cation exchange membrane 212, and the regeneration water passes through the first regeneration water path 230 and the second regeneration water path 240 and is discharged as concentrated water;
the positive electrode plate is disposed on the side of the first regeneration water passage 230 away from the anion exchange membrane, and the negative electrode plate is disposed on the side of the second regeneration water passage 240 away from the cation exchange membrane 212.
In the desalination working condition, the regeneration water path is closed, no electrolysis voltage is applied, and raw water passes through the first desalination water path 210 and the second desalination water path 220 and then is discharged as pure water;
in the first desalination water path 210, positive salt ions to be desalinated in the raw water are replaced by hydrogen ions in the cation exchange unit 211, the positive salt ions are adsorbed by the cation exchange unit 211, the hydrogen ions are replaced, and the replaced hydrogen ions enter the second desalination water path 220 along with the raw water; in the second desalination water path 220, the salt anions in the raw water are replaced by hydroxide ions in the anion exchange unit 221, the salt anions are adsorbed by the anion exchange unit 221, and the hydroxide ions are replaced; the hydroxyl ions react with the hydrogen ions to generate water, and the water is discharged in the form of pure water.
In the regeneration working condition, the desalination water path is closed, the electrolysis voltage is applied, and the regenerated water passes through the first regeneration water path 230 and the second regeneration water path 240 in sequence and then is discharged as concentrated water;
under the condition of applying electrolysis voltage, the water generated by hydrogen ions and hydroxyl ions permeating through the first anion exchange membrane 222 under the desalting condition is decomposed into hydrogen ions and hydroxyl ions again, the hydroxyl ions move towards the positive plate, the water enters the anion exchange unit 221 through the first anion exchange membrane 222 in the process of moving the hydroxyl ions to replace the salt negative ions, and the replaced salt negative ions enter the first regenerated water path 230 through the second anions under the condition of electric attraction of the positive plate;
meanwhile, the hydrogen ions enter the cation exchange unit 211 together with the non-electrolyzed water, and displace the salt positive ions in the cation exchange unit 211, the displaced salt positive ions move to the negative electrode plate, and the displaced salt positive ions enter the second regeneration water path 240 through the cation exchange membrane 212 under the condition that the negative electrode plate is electrically attracted;
in the second regeneration water path 240, the replaced salt positive ions and salt negative ions are combined, and finally discharged as concentrated water from the second regeneration water path 240.
The utility model discloses output formula water purification system is stabilized to pure water of water purifier, be provided with membrane filter unit 100 and electric regeneration filter unit 200, membrane filter unit 100's pure water pipeline 500 and electric regeneration filter unit 200's water intake pipe intercommunication, in the period of the water purifier just started working, through valve body 300 control main filter mechanism 100's pure water delivery outlet and electric regeneration filter unit 200 intercommunication, main treatment pure water that produces main filter mechanism 100 through electric regeneration filter unit 200 carries out secondary filtration, can solve the higher problem of first cup pure water salt content of whole water treatment system output, improve the purifying effect of quality of water.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides an output formula water purification system is stabilized to pure water which characterized in that: the device is provided with a main filtering mechanism, an electric regeneration filtering unit and a valve body;
the pure water outlet of the main filtering mechanism is communicated with a first pure water pipeline and a second pure water pipeline, the second pure water pipeline is communicated with the water inlet of the electric regeneration filtering unit, and the pure water outlet of the electric regeneration filtering unit is communicated with the first pure water pipeline;
in a time period delta T from the beginning of water purification, raw water is input into the main filtering mechanism through a water inlet pipeline, main treatment pure water and main treatment concentrated water are obtained after treatment of the main filtering mechanism, and the main treatment concentrated water is discharged through a main concentrated water outlet;
the main treatment pure water is not directly conveyed to a total pure water output port, the main treatment pure water is used as raw water of the electric regeneration filtering unit and conveyed to the electric regeneration filtering unit, and pure water obtained by the electric regeneration filtering unit is filtered by the electric regeneration filtering unit and conveyed to the total pure water output port to be used as pure water produced water of the whole water treatment system;
and after a time interval delta T from the beginning of water purification, the main treatment pure water is directly conveyed to a total pure water output port to be used as the pure water production water of the whole water treatment system.
2. The stable output formula water purification system of pure water of claim 1, characterized in that:
the pure water output port of the main filtering mechanism is controlled by the valve body to be communicated with the first pure water pipeline or the pure water output port of the main filtering mechanism is controlled to be communicated with the second pure water pipeline.
3. The stable output formula water purification system of pure water of claim 1, characterized in that: the electric regeneration filtering unit is provided with a desalination water path;
the desalting water path is provided with a cation exchange unit and an anion exchange unit, a first anion exchange membrane is clamped between the cation exchange unit and the anion exchange unit, a cation exchange membrane is arranged at one end of the cation exchange unit, which is far away from the first anion exchange membrane, and a second anion exchange membrane is arranged at one end of the anion exchange unit, which is far away from the first anion exchange membrane;
the cation exchange unit and the cation exchange membrane jointly form a first desalination water path during desalination, the anion exchange unit, the first anion exchange membrane and the second anion exchange membrane jointly form a second desalination water path during desalination, and water is discharged as pure water after passing through the first desalination water path and the second desalination water path.
4. The stable output formula water purification system of pure water of claim 1, characterized in that: the electric regeneration filtering unit is also provided with a regeneration water path, a positive plate and a negative plate for electrolyzing water;
the regeneration water path is provided with a first regeneration water path and a second regeneration water path, the first regeneration water path comprises a second anion exchange membrane, the second regeneration water path comprises a cation exchange membrane, and the regeneration water is discharged as concentrated water through the first regeneration water path and the second regeneration water path;
the positive plate sets up in the one side of keeping away from anion exchange membrane in first regeneration water route, and the negative plate sets up in the one side of keeping away from cation exchange membrane in second regeneration water route.
5. The stable output formula water purification system of pure water of claim 4, characterized in that: the main filtering mechanism is provided with a pre-filtering unit and a membrane filtering unit, a water outlet pipeline of the pre-filtering unit is communicated with a water inlet of the membrane filtering unit, and a pure water outlet of the membrane filtering unit is communicated with a first pure water pipeline and a second pure water pipeline.
6. The stable output formula water purification system of pure water of claim 5, characterized in that: the cation exchange unit is set as cation exchange resin;
the cation exchange resin is strong acid cation exchange resin or weak acid cation exchange resin;
the anion exchange unit is arranged as an anion exchange resin;
the anion exchange resin is strong base anion exchange resin or weak base anion exchange resin.
7. A water purifier having the pure water stable output type water purification system according to any one of claims 1 to 6.
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| CN111233221A (en) * | 2020-03-16 | 2020-06-05 | 佛山市云米电器科技有限公司 | Water purification method and system and water purifier with stable pure water output |
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Effective date of registration: 20211027 Address after: 528308 No.2, North Xinxi 4th Road, Xiashi village, Lunjiao street, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Chestnut Technology Co.,Ltd. Address before: 528300 Nepheline Village Committee, Lunjiao Sub-district Office, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN VIOMI ELECTRICAL TECHNOLOGY Co.,Ltd. Patentee before: Chen Xiaoping |