CN114105374A - Bipolar membrane water purification system, control method and water purification equipment - Google Patents
Bipolar membrane water purification system, control method and water purification equipment Download PDFInfo
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- CN114105374A CN114105374A CN202010873875.8A CN202010873875A CN114105374A CN 114105374 A CN114105374 A CN 114105374A CN 202010873875 A CN202010873875 A CN 202010873875A CN 114105374 A CN114105374 A CN 114105374A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 229
- 239000012528 membrane Substances 0.000 title claims abstract description 106
- 238000000746 purification Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 40
- 239000002351 wastewater Substances 0.000 claims abstract description 26
- 239000007787 solid Substances 0.000 claims description 10
- 230000008929 regeneration Effects 0.000 claims description 8
- 238000011069 regeneration method Methods 0.000 claims description 8
- 239000008213 purified water Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 150000001450 anions Chemical class 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 4
- 229910017053 inorganic salt Inorganic materials 0.000 description 4
- 239000003011 anion exchange membrane Substances 0.000 description 3
- 238000005341 cation exchange Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010612 desalination reaction Methods 0.000 description 2
- 230000035622 drinking Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a bipolar membrane water purification system, a control method and water purification equipment. The water purification system comprises a booster pump, a bipolar membrane filter element, a reverse osmosis filter element, a first valve, a second valve, a third valve, a water inlet pipeline, a water outlet pipeline, a wastewater pipeline and a circulating pipeline; the first valve and the booster pump are arranged on the water inlet pipeline; the water outlet side is communicated with the water outlet pipeline; one end of the circulating pipeline is communicated with the water inlet pipeline, and the other end of the circulating pipeline is communicated with the waste water pipeline; the bipolar membrane filter element is arranged on one of the water inlet pipeline, the circulating pipeline or the waste water pipeline. After water purification unit restarts, the user just can directly drink the play water when just beginning to make water, does not influence the citation even shut down for a long time, improves user's water experience. Meanwhile, the bipolar membrane filter core adopted by the invention can be regenerated and reused, and does not need to be replaced frequently.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a bipolar membrane water purification system, a control method and water purification equipment.
Background
Reverse Osmosis (RO) is a water treatment technology commonly used at present, and is commonly used in water purification equipment such as various water purifiers, and the principle of the technology is that raw water with pressure passes through the RO, water molecules can pass through the RO under pressure driving, and inorganic salt ions, bacteria, viruses, organic matters, colloid and the like are intercepted by the RO, so that the purification of the raw water is realized, and pure drinking water is obtained.
When the reverse osmosis water purification equipment is not used for a long time, part of inorganic salt ions and small molecular weight substances on one side of raw water of the reverse osmosis membrane gradually pass through the reverse osmosis membrane, so that the Total Dissolved Solids (TDS) concentration on one side of purified water is gradually increased and is even finally the same as the Total Dissolved Solids (TDS) concentration of the raw water. This just leads to reverse osmosis water purification unit to be reusing, and the play water TDS concentration when just beginning to make water is high, and quality of water is poor, has influenced user's experience with water.
Disclosure of Invention
The invention aims to provide a bipolar membrane water purification system, a control method and water purification equipment.
The invention discloses a bipolar membrane water purification system which comprises a booster pump, a bipolar membrane filter element, a reverse osmosis filter element, a first valve, a second valve, a third valve, a water inlet pipeline, a water outlet pipeline, a wastewater pipeline and a circulating pipeline, wherein the booster pump is connected with the first valve; the first valve and the booster pump are arranged on the water inlet pipeline; the second valve is arranged on the water outlet pipeline, and the third valve is arranged on the waste water pipeline; the water inlet side of the reverse osmosis filter element is respectively communicated with the water inlet pipeline and the waste water pipeline, and the water outlet side of the reverse osmosis filter element is communicated with the water outlet pipeline; one end of the circulating pipeline is communicated with the water inlet pipeline, and the other end of the circulating pipeline is communicated with the waste water pipeline; the bipolar membrane filter element is arranged on one of the water inlet pipeline, the circulating pipeline or the waste water pipeline.
Optionally, the bipolar membrane filter core sets up on the inlet line, and is located the intercommunication department of circulation pipeline and inlet line extremely the inlet line between the reverse osmosis filter core.
Optionally, the water purification system comprises a TDS meter; the TDS meter is arranged on the circulating pipeline.
Optionally, the water purification system comprises a fourth valve; the bipolar membrane filter element and the fourth valve are both arranged on the circulating pipeline.
Optionally, the fourth valve is located after the bipolar membrane cartridge.
Optionally, the water purification system comprises a TDS meter; the TDS meter is arranged on the circulating pipeline.
Optionally, the TDS meter is located between the fourth valve and a bipolar membrane cartridge.
Optionally, the bipolar membrane filter element is arranged on the wastewater pipeline; the water purification system comprises a fourth valve, and the fourth valve is arranged on the circulating pipeline.
Optionally, the water purification system comprises a TDS meter; the TDS meter is arranged on the circulating pipeline.
The invention also discloses water purification equipment comprising the bipolar membrane water purification system.
The invention also discloses a control method of the bipolar membrane water purification system, which is applied to the bipolar membrane water purification system and comprises the following steps:
step a, opening a first valve, a second valve and a third valve, and starting water production by a water purification system;
b, under a first specific condition, closing the second valve and the third valve, keeping the first valve in an opening state, and electrifying the bipolar membrane filter element in the positive direction;
c, enabling the purified water on the water outlet side of the reverse osmosis filter element to pass through the bipolar membrane filter element through a circulating pipeline and circulating the purified water back to the water inlet side of the reverse osmosis filter element;
and d, stopping the backflushing circulation after a second specific condition is reached.
Optionally, the step a further includes:
in the water preparation process of the water purification system, the bipolar membrane filter core is reversely electrified to realize regeneration.
Optionally, the step c further includes the steps of:
detecting the total amount of soluble solids in the circulating process by using a TDS meter;
the step d is specifically as follows:
when the total amount of dissolved solids is less than a preset threshold, the cycle is stopped.
After the water purification system is restarted, water can be directly drunk by a user when water production is started, and the drinking is not influenced even if the water purification system is stopped for a long time, so that the water using experience of the user is improved. Meanwhile, the bipolar membrane filter core adopted by the invention can be regenerated and reused, and does not need to be replaced frequently.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic diagram of a bipolar membrane water purification system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a bipolar membrane cartridge according to an embodiment of the present invention for adsorbing ions;
FIG. 3 is a schematic illustration of the regeneration of a bipolar membrane cartridge according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a bipolar membrane water purification system according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a bipolar membrane water purification system according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a reverse osmosis water purification apparatus according to an embodiment of the present invention;
fig. 7 is a flowchart of a control method according to an embodiment of the present invention.
Wherein, 1, a water purifying device; 2. a water purification system; 3. a booster pump; 4. a bipolar membrane cartridge; 5. a reverse osmosis filter element; 51. a water inlet side; 52. a reverse osmosis membrane; 53. a water outlet side; 6. a first valve; 7. a second valve; 8. a third valve; 9. a water inlet pipeline; 10. a water outlet pipeline; 11. a waste water line; 12. a circulation line; 13. a TDS meter; 14. and a fourth valve.
Detailed Description
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
The invention is described in detail below with reference to the figures and alternative embodiments.
As shown in fig. 1, as an embodiment of the present invention, a bipolar membrane water purification system is disclosed, wherein the water purification system 2 comprises a pipeline assembly, a booster pump 3, a bipolar membrane filter element 4, a reverse osmosis filter element 5, a first valve 6, a second valve 7, a third valve 8, a water inlet pipeline 9, a water outlet pipeline 10, a waste water pipeline 11 and a circulation pipeline 12; the first valve 6 and the booster pump 3 are arranged on the water inlet pipeline 9; the second valve 7 is arranged on the water outlet pipeline 10, and the third valve 8 is arranged on the waste water pipeline 11; the water inlet side 51 of the reverse osmosis filter element 5 is respectively communicated with the water inlet pipeline 9 and the waste water pipeline 11, and the water outlet side 53 is communicated with the water outlet pipeline 10; one end of the circulating pipeline 12 is communicated with the water inlet pipeline 9, and the other end of the circulating pipeline is communicated with the waste water pipeline 11; the bipolar membrane filter element 4 is arranged on one of the water inlet pipeline 9, the circulating pipeline 12 or the waste water pipeline 11.
It should be noted that the water inlet side 51 of the reverse osmosis filter element 5 in the present invention refers to the side of the reverse osmosis filter element 5 where water is not filtered by the reverse osmosis membrane 52, and is the raw water or the waste water; the outlet side 53 refers to the side of the water in the reverse osmosis cartridge 5 that has been filtered by the reverse osmosis membrane 52, where it is purified for consumption by the user. The raw water is tap water or the like supplied from a municipal pipeline, the clean water is water filtered by the reverse osmosis membrane 52 and is supplied to a user, and the waste water is water remaining after the raw water is continuously filtered by the reverse osmosis membrane 52, and the TDS concentration of the water is generally higher than that of the raw water and can be discharged through the waste water pipeline 11.
As shown in FIG. 2, the bipolar membrane filter element 4 is composed of one or more pairs of electrodes, and at least one or more bipolar membranes in the middle of the electrodes; each bipolar membrane consists of a cation exchange membrane and an anion exchange membrane which are compounded together, the cation exchange membrane and the anion exchange membrane which form the bipolar membrane form a runner.
In the bipolar membrane cartridge 4, in the desalination process, the anode membrane of the bipolar membrane faces the positive electrode, and raw water is desalinated in the flow channel formed between the two bipolar membranes, as shown in fig. 2. Anions in the raw water such as Cl < - > move towards the positive electrode to replace OH < - > in the anion exchange membrane on the left side, and OH < - > enters the flow channel; meanwhile, cations such as Na + in the raw water move towards the negative electrode direction to replace H + ions in the cation exchange membrane of the bipolar membrane on the right side, and the H + enters the flow channel; h + and OH-are subjected to neutralization reaction in the flow channel to generate water, so that the salt in the raw water is removed, and the pure water flows out from the tail end of the flow channel.
When desalination is carried out for a period of time, reverse-pole regeneration is required to release ions in water adsorbed on the bipolar membrane. At this time, as shown in fig. 3, OH "and H + ions are generated in the interface layers of the cation membrane and the anion membrane of the bipolar membrane under the electric field, cations such as Na + inside the cation membrane of the bipolar membrane are replaced by the H + ions and move toward the negative electrode, anions such as Cl" in the anion membrane of the bipolar membrane are replaced by OH "and move toward the positive electrode, and Na + and Cl" enter the flow channel, thereby realizing the regeneration process of the bipolar membrane cartridge 4.
According to the water purification system 2, when water is produced, the first valve 6, the second valve 7 and the third valve 8 are opened. When water is not produced, the second valve 7 and the third valve 8 are closed, and water is continuously circulated along the water inlet pipe, the water inlet side 51 of the reverse osmosis filter element 5, the waste water pipeline 11 and the circulation pipeline 12 under the pushing of the booster pump 3. In the circulation process, various ions in the water are adsorbed by the bipolar membrane filter element 4, so that the TDS concentration of the water is reduced. When the water purification system 2 starts water production again, the first valve 6, the second valve 7 and the third valve 8 are opened.
According to the water purification system 2, through the water circulation process, water quality is continuously purified through the bipolar membrane filter element 4 in the circulation process, the TDS concentration of water finally staying at the water inlet side 51 of the reverse osmosis filter element 5 is small, substances such as inorganic salt ions and the like on the water inlet side 51 are less permeated to the water outlet side 53, even if permeation exists, the water quality on the water inlet side 51 can still be in a good range, after the water purification device 1 is restarted, a user just begins to make water, the user can directly drink the water from the water outlet, and even if the water purification device is stopped for a long time, the user does not influence drinking, and the water using experience of the user is improved. Meanwhile, the bipolar membrane filter element 4 adopted by the invention can be regenerated and reused, and does not need to be replaced frequently.
Specifically, the bipolar membrane filter element 4 is arranged on the water inlet pipeline 9 and is positioned on the water inlet pipeline 9 between the reverse osmosis filter elements 5 and the communication position of the circulating pipeline 12 and the water inlet pipeline 9. When water is normally produced, the bipolar membrane filter element 4 can work without being electrified, and the reverse osmosis filter element 5 is normally used for purifying water; or at the moment, the filter element of the bipolar membrane filter element 4 is reversely electrified to carry out regeneration treatment. In the process of water circulation, the filter element of the bipolar membrane filter element 4 is electrified to purify the circulating water.
Further, as shown in fig. 1, the water purification system 2 further includes a TDS meter 13; the TDS meter 13 is provided on the circulation line 12. The TDS meter 13 is used to measure the TDS concentration of the water on the circulation line 12. The TDS meter 13 can be used to monitor the specific water circulation conditions of the water purification system 2 and take different actions depending on the water circulation conditions, such as whether to stop the circulation.
In another embodiment, as shown in fig. 4, the water purification system 2 further comprises a fourth valve 14; the bipolar membrane cartridge 4 and the fourth valve 14 are both disposed on the circulation line 12. Further, the fourth valve 14 is located behind the bipolar membrane filter element 4, so that water flow on the circulation pipeline 12 can be conveniently cut off in normal water making, and influence on the TDS meter 13 and the bipolar membrane filter element 4 is avoided. Further, the water purification system 2 further comprises a TDS meter 13; the TDS meter 13 is provided on the circulation line 12. The TDS meter 13 can monitor the specific water circulation conditions of the water purification system 2 and take different actions depending on the water circulation conditions, e.g. whether to stop the circulation. Specifically, the TDS meter 13 is located between the fourth valve 14 and the bipolar membrane filter cartridge 4.
In another embodiment, as shown in fig. 5, the bipolar membrane cartridge 4 is disposed on the waste water line 12; the water purification system 2 comprises a fourth valve 14, and the fourth valve 14 is arranged on the circulation pipeline 12. The water purification system 2 further comprises a TDS meter 13; the TDS meter 13 is provided on the circulation line 12. In particular, the TDS meter 13 is arranged after the fourth valve 14.
As shown in fig. 6, as another embodiment of the present invention, a water purifying apparatus is also disclosed, which comprises the bipolar membrane water purifying system 2 as described above.
As shown in fig. 7, as another embodiment of the present invention, a control method of a bipolar membrane water purification system is also disclosed, which is applied to the bipolar membrane water purification system described above, and the method includes the steps of:
step a, opening a first valve, a second valve and a third valve, and starting water production by a water purification system;
b, under a first specific condition, closing the second valve and the third valve, keeping the first valve in an opening state, and electrifying the bipolar membrane filter element in the positive direction;
c, enabling the purified water on the water outlet side of the reverse osmosis filter element to pass through the bipolar membrane filter element through a circulating pipeline and circulating the purified water back to the water inlet side of the reverse osmosis filter element;
and d, stopping the backflushing circulation after a second specific condition is reached.
According to the control method, through the water circulation process, water quality is continuously purified through the bipolar membrane filter element 4 in the circulation process, the TDS concentration of water finally staying at the water inlet side 51 of the reverse osmosis filter element 5 is small, substances such as inorganic salt ions and the like at the water inlet side 51 are less permeated towards the water outlet side 53, even if permeation exists, the water quality at the water inlet side 51 can still be in a good range, after the water purifying equipment 1 is restarted, a water outlet user can directly drink water when water preparation is just started, the water outlet user does not influence reference even after long-time shutdown, and the water using experience of the user is improved. Meanwhile, the bipolar membrane filter element 4 adopted by the invention can be regenerated and reused, and does not need to be replaced frequently.
Specifically, the step a further includes:
in the water preparation process of the water purification system, the bipolar membrane filter core is reversely electrified to realize regeneration.
The bipolar membrane filter core is electrified in a forward direction as shown in figure 2, and is electrified in a reverse direction as shown in figure 3. As mentioned above, regeneration refers to the release of ions originally adsorbed on the bipolar membrane cartridge after it has been charged in reverse.
Specifically, the step c further includes the steps of:
detecting the total amount of soluble solids in the circulating process by using a TDS meter;
the step d is specifically as follows:
when the total amount of dissolved solids is less than a preset threshold, the cycle is stopped. At this time, "when the total amount of the soluble solids is less than the preset threshold" is the second specific condition.
It should be noted that the first specific condition and the second specific condition may be a predetermined time, a predetermined threshold value of the total amount of soluble solids, or a predetermined water flow rate. For example, the first specific condition is that the circulation is started after the water flow reaches a certain preset value, and the second specific condition is that the circulation is stopped after the water flow reaches a certain preset value; the first specific condition is that the circulation is started after the preset time is reached, and the second specific condition is that the circulation is stopped after the preset time is reached.
It should be noted that, the limitations of the steps involved in the present disclosure are not considered to limit the order of the steps without affecting the implementation of the specific embodiments, and the steps written in the foregoing may be executed first, or executed later, or even executed simultaneously, and as long as the present disclosure can be implemented, all should be considered to belong to the protection scope of the present disclosure.
The foregoing is a more detailed description of the invention in connection with specific alternative embodiments, and the practice of the invention should not be construed as limited to those descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (13)
1. A bipolar membrane water purification system is characterized in that the water purification system comprises a booster pump, a bipolar membrane filter element, a reverse osmosis filter element, a first valve, a second valve, a third valve, a water inlet pipeline, a water outlet pipeline, a wastewater pipeline and a circulating pipeline; the first valve and the booster pump are arranged on the water inlet pipeline; the second valve is arranged on the water outlet pipeline, and the third valve is arranged on the waste water pipeline; the water inlet side of the reverse osmosis filter element is respectively communicated with the water inlet pipeline and the waste water pipeline, and the water outlet side of the reverse osmosis filter element is communicated with the water outlet pipeline; one end of the circulating pipeline is communicated with the water inlet pipeline, and the other end of the circulating pipeline is communicated with the waste water pipeline; the bipolar membrane filter element is arranged on one of the water inlet pipeline, the circulating pipeline or the waste water pipeline.
2. The bipolar membrane water purification system of claim 1, wherein the bipolar membrane cartridge is disposed on the water inlet line at a location on the water inlet line between the water inlet line and the water circulation line to the reverse osmosis cartridge.
3. The bipolar membrane water purification system of claim 2, wherein the water purification system comprises a TDS meter; the TDS meter is arranged on the circulating pipeline.
4. The bipolar membrane water purification system of claim 1, wherein the water purification system comprises a fourth valve; the bipolar membrane filter element and the fourth valve are both arranged on the circulating pipeline.
5. The bipolar membrane water purification system of claim 4, wherein the fourth valve is located after the bipolar membrane cartridge.
6. The bipolar membrane water purification system of claim 5, wherein the water purification system comprises a TDS meter; the TDS meter is arranged on the circulating pipeline.
7. The bipolar membrane water purification system of claim 6, wherein the TDS meter is located between the fourth valve and the bipolar membrane cartridge.
8. The bipolar membrane water purification system of claim 1, wherein the bipolar membrane cartridge is disposed on a waste water pipeline; the water purification system comprises a fourth valve, and the fourth valve is arranged on the circulating pipeline.
9. The bipolar membrane water purification system of claim 8, wherein the water purification system comprises a TDS meter; the TDS meter is arranged on the circulating pipeline.
10. A water purification apparatus comprising the bipolar membrane water purification system according to any one of claims 1 to 9.
11. A control method of a bipolar membrane water purification system, applied to the bipolar membrane water purification system of any one of claims 1 to 9, characterized in that the method comprises the steps of:
step a, opening a first valve, a second valve and a third valve, and starting water production by a water purification system;
b, under a first specific condition, closing the second valve and the third valve, keeping the first valve in an opening state, and electrifying the bipolar membrane filter element in the positive direction;
c, enabling the purified water on the water outlet side of the reverse osmosis filter element to pass through the bipolar membrane filter element through a circulating pipeline and circulating the purified water back to the water inlet side of the reverse osmosis filter element;
and d, stopping the backflushing circulation after a second specific condition is reached.
12. The control method of the bipolar membrane water purification system of claim 11, wherein the step a further comprises:
in the water preparation process of the water purification system, the bipolar membrane filter core is reversely electrified to realize regeneration.
13. The control method of the bipolar membrane water purification system of claim 11, wherein the step c further comprises the steps of:
detecting the total amount of soluble solids in the circulating process by using a TDS meter;
the step d is specifically as follows:
when the total amount of dissolved solids is less than a preset threshold, the cycle is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010873875.8A CN114105374A (en) | 2020-08-26 | 2020-08-26 | Bipolar membrane water purification system, control method and water purification equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010873875.8A CN114105374A (en) | 2020-08-26 | 2020-08-26 | Bipolar membrane water purification system, control method and water purification equipment |
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| CN114105374A true CN114105374A (en) | 2022-03-01 |
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|---|---|---|---|---|
| US5662793A (en) * | 1996-01-05 | 1997-09-02 | Beall, Jr.; Richard W. | Valve assembly of a reverse osmosis water purification system |
| JP2014069122A (en) * | 2012-09-28 | 2014-04-21 | Japan Organo Co Ltd | Desalination method, desalination apparatus, and bipolar membrane |
| CN205999189U (en) * | 2016-07-29 | 2017-03-08 | 厦门市科宁沃特水处理科技股份有限公司 | A kind of family expenses Bipolar Membrane soda acid dissociation unit |
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-
2020
- 2020-08-26 CN CN202010873875.8A patent/CN114105374A/en active Pending
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|---|---|---|---|---|
| US5662793A (en) * | 1996-01-05 | 1997-09-02 | Beall, Jr.; Richard W. | Valve assembly of a reverse osmosis water purification system |
| JP2014069122A (en) * | 2012-09-28 | 2014-04-21 | Japan Organo Co Ltd | Desalination method, desalination apparatus, and bipolar membrane |
| CN205999189U (en) * | 2016-07-29 | 2017-03-08 | 厦门市科宁沃特水处理科技股份有限公司 | A kind of family expenses Bipolar Membrane soda acid dissociation unit |
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| CN209113542U (en) * | 2018-11-22 | 2019-07-16 | 佛山市云米电器科技有限公司 | A kind of regenerated water softening device of intelligent control |
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| Title |
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