CN216687753U - Long-acting water purification system and water purification equipment - Google Patents
Long-acting water purification system and water purification equipment Download PDFInfo
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- CN216687753U CN216687753U CN202023167248.7U CN202023167248U CN216687753U CN 216687753 U CN216687753 U CN 216687753U CN 202023167248 U CN202023167248 U CN 202023167248U CN 216687753 U CN216687753 U CN 216687753U
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Abstract
The utility model discloses a long-acting water purification system and water purification equipment, which comprise a main pipeline, a water pump, a bipolar membrane filter core and a membrane filter core: the water pump, the bipolar membrane filter element and the membrane filter element are sequentially arranged on the main pipeline. According to the long-acting water purification system, the bipolar membrane filter element is positively electrified to remove salt in raw water, and meanwhile, water is acidic. The acidic water flows into the membrane filter element to dissolve the scale on the filtering membrane or inhibit the generation of the scale. Therefore, the long-acting water purification system can remove or inhibit scale on the filter membrane, ensure the filtering effect and ensure the long-acting use of the membrane filter element.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a long-acting water purification system and water purification equipment.
Background
The water purifying equipment is also called water purifier and water quality purifier, and is water treating equipment for deep filtering and purifying water according to water requirement. The technical core of the water purifier is a filter element device, and the filter element device generally comprises an ultrafiltration membrane filter element, an RO reverse osmosis membrane filter element, a nanofiltration membrane filter element and the like. These cartridges, which filter water through various types of filter membranes, are called membrane cartridges. The membrane filter element is divided into a water inlet side and a water outlet side, raw water and waste water are on the water inlet side, and filtered purified water is on the water outlet side.
In the use, incrustation scale can be attached to gradually to the filtration membrane of membrane filter core to be difficult to clear away, influence the filter effect, generally can only change the filter core, be difficult to satisfy the demand of long-term use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a long-acting water purification system and water purification equipment, which can remove or inhibit scale on a filter membrane, ensure the filtering effect and be used for a long time.
The utility model discloses a long-acting water purification system, which comprises a main pipeline, a water pump, a bipolar membrane filter element and a membrane filter element: the water pump, the bipolar membrane filter element and the membrane filter element are sequentially arranged on the main pipeline.
Optionally, the water purification system comprises a valve and a branch pipeline; two ends of the branch pipeline are communicated with the main pipeline, wherein one end of the branch pipeline is positioned between the water pump and the bipolar membrane filter element, and the other end of the branch pipeline is positioned between the bipolar membrane filter element and the membrane filter element; the valve is arranged on the branch flow pipeline.
Optionally, water purification system includes leading filter core, leading filter core sets up on the main pipeline, and be located before the water pump.
Optionally, the water purification system includes leading filter core, leading filter core sets up on the main pipeline, and be located the water pump with between the bipolar membrane filter core.
Optionally, the water purification system includes leading filter core, leading filter core sets up on the bypass pipeline.
Optionally, the water purification system comprises the membrane filter element is a reverse osmosis filter element, a nanofiltration filter element or an ultrafiltration filter element.
The utility model also discloses a long-acting water purification system, which comprises a main pipeline, a water pump, a bipolar membrane filter core, a branch pipeline and a valve: the water pump and the membrane filter element are sequentially arranged on the main pipeline; two ends of the branch pipeline are communicated with the main pipeline, wherein one end of the branch pipeline is positioned in front of the water pump, and the other end of the branch pipeline is positioned between the water pump and the membrane filter element; the valve and the bipolar membrane filter element are sequentially arranged on the branch flow pipeline.
Optionally, water purification system includes leading filter core, leading filter core sets up on the main pipeline, and be located before the water pump.
Optionally, the water purification system includes leading filter core, leading filter core sets up on the bypass pipeline.
The utility model also discloses a water purification device which comprises the water purification system.
According to the long-acting water purification system, the bipolar membrane filter element is positively electrified to remove salt in raw water, and meanwhile, water is acidic. The acidic water flows into the membrane filter element to dissolve the scale on the filter membrane or inhibit the generation of the scale. Therefore, the long-acting water purification system can remove or inhibit scale on the filter membrane, ensure the filtering effect and ensure the long-acting use of the membrane filter element.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. It is obvious that the drawings in the following description are only some embodiments of the utility model, 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 water purification system according to an embodiment of the present invention;
FIG. 2 is another schematic diagram of a water purification system according to an embodiment of the present invention;
FIG. 3 is a schematic view of a bipolar membrane cartridge according to an embodiment of the present invention adsorbing ions;
FIG. 4 is a schematic illustration of the regeneration of a bipolar membrane cartridge according to an embodiment of the present invention;
FIG. 5 is another schematic diagram of a water purification system according to an embodiment of the present invention;
FIG. 6 is a flow diagram of a water purification system according to an embodiment of the present invention;
fig. 7 is another flow diagram of a water purification system according to an embodiment of the present invention.
Wherein, 1, a main pipeline; 2. a water pump; 3. a bipolar membrane cartridge; 4. a membrane cartridge; 41. a water inlet side; 42. a water outlet side; 43. a filtration membrane; 5. a valve; 6. a branch pipeline; 7. the front-mounted filter element.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are not intended to be limiting, since the present invention may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
The utility model is described in detail below with reference to the figures and alternative embodiments.
As shown in fig. 1, as a first embodiment of the present invention, a long-acting water purification system is disclosed, which includes a main pipe 1, a water pump 2, a bipolar membrane cartridge 3, and a membrane cartridge 4: the water pump 2, the bipolar membrane filter element 3 and the membrane filter element 4 are sequentially arranged on the main pipeline 1.
The membrane cartridge 4 according to the present invention refers to a cartridge using various filtration membranes 43, such as a reverse osmosis cartridge, an ultrafiltration cartridge, a nanofiltration cartridge, and the like. Specifically, the membrane filter element 4 is a reverse osmosis filter element, a nanofiltration filter element or an ultrafiltration filter element. The filter membrane 43 divides the cartridge into a water inlet side 41 and a water outlet side 42. The water inlet side 41 refers to the side of the membrane filter element 4 which is not yet filtered by the membrane and is provided with raw water or waste water; the outlet side 42 refers to the side of the membrane cartridge 4 where water has been filtered, where it is purified for consumption by a user. In the present invention, the water is raw water, purified water, and waste water. The raw water is water before being filtered by the membrane filter 4; the purified water refers to water filtered by a reverse osmosis membrane and is drunk by a user; the waste water refers to water remaining on the water inlet side 41 after the raw water is continuously filtered by the filter membrane 43, and this part of the water generally has a higher TDS concentration (Total dissolved solids) than the raw water and can be discharged through a waste water line (not shown).
As shown in FIG. 3, the bipolar membrane filter cartridge 3 used in the present invention is composed of one or more pairs of electrodes, and at least one or more bipolar membranes between 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 3, in the desalination process, the anode 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. 3. 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, the bipolar membrane filter element 3 needs to be subjected to reverse regeneration, and then the bipolar membrane filter element 3 is reversely electrified to release ions in water adsorbed on the bipolar membrane. At this time, as shown in fig. 4, 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 3.
According to the long-acting water purification system, the bipolar membrane filter element 3 is positively electrified to remove salt in raw water, and meanwhile, water is acidic. The acidic water flows into the membrane cartridge 4, and dissolves the scale on the filtration membrane 43 or suppresses the generation of scale. The larger the positive electrification voltage of the bipolar membrane filter element 3 is, the smaller the pH value of the water is, and the stronger the acidity of the water is. Specifically, the bipolar membrane filter element 3 can be positively energized after the membrane filter element 4 is used for a period of time, the voltage of the bipolar membrane filter element 3 is high, the acidity of water is high, and scale generated on the filter membrane 43 can be directly dissolved. This approach is suitable for situations where strong cleaning is required after long-term use. When the membrane cartridge 4 is used, the bipolar membrane cartridge 3 may be positively energized, and the bipolar membrane cartridge 3 may be energized at a low voltage to reduce the acidity of water, thereby reducing the hardness of water and suppressing the generation of scale on the filtration membrane 43. Therefore, the long-acting water purification system can remove or inhibit the scale on the filter membrane 43, ensure the filtering effect and ensure the long-acting use of the membrane filter element 4.
Specifically, when the scale generated on the filtering membrane 43 needs to be directly dissolved, the voltage value of the bipolar membrane filter element 3 may be set to be greater than 100V, and at this time, the PH value of the water treated by the bipolar membrane filter element 3 is about 1-3, and the acidity is strong, so that the scale generated on the filtering membrane 43 can be directly dissolved. When the generation of scale on the filtering membrane 43 needs to be inhibited, the voltage value of the bipolar membrane filter element 3 can be set to be less than 100V, the pH value of the water treated by the bipolar membrane filter element 3 is about 6, the acidity is weak, and the generation of scale on the filtering membrane 43 can be inhibited.
Further, as shown in fig. 2, the water purification system comprises a valve 5 and a branch pipeline 6; two ends of the branch pipeline 6 are communicated with the main pipeline 1, wherein one end is positioned between the water pump 2 and the bipolar membrane filter element 3, and the other end is positioned between the bipolar membrane filter element 3 and the membrane filter element 4; the valve 5 is arranged on the branch pipeline 6. In this scheme, when need not clear away or restrain the incrustation scale on the filtration membrane 43, open valve 5, because there is the resistance in the water flow through bipolar membrane filter core 3, so water can flow through from tributary pipeline 6, accelerates the filter speed. When the scale on the filtering membrane 43 needs to be removed or inhibited, the valve 5 is closed, a larger or smaller voltage is applied to the bipolar membrane filter element 3, and the water flows through the bipolar membrane filter element 3 and then is in strong acid or weak acid, so that the scale on the filtering membrane 43 is removed or inhibited.
Further, the water purification system comprises a front filter element 7, wherein the front filter element 7 is arranged on the main pipeline 1 and is positioned in front of the water pump 2. The preposed filter element 7 can be any one or the combination of a PP cotton filter element and an active carbon filter element. The PP cotton filter element can filter particle impurities in raw water, and the activated carbon filter element can remove residual chlorine, peculiar smell, color and organic matters in the water. The preposed filter element 7 can be used for pretreating raw water, is beneficial to protecting the membrane filter element 4, the bipolar membrane filter element 3 and the water pump 2, and can also improve the purification effect of the raw water. In another embodiment, the pre-filter element 7 is arranged on the main pipeline 1, and can be positioned between the water pump 2 and the bipolar membrane filter element 3. In another embodiment, the pre-filter element 7 is arranged on the branch line 6.
As shown in fig. 5, as a second embodiment of the present invention, a long-acting water purification system is disclosed, which includes a main pipeline 1, a water pump 2, a bipolar membrane cartridge 3, a membrane cartridge 4, a branch pipeline 6, and a valve 5: the water pump 2 and the membrane filter element 4 are sequentially arranged on the main pipeline 1; two ends of the branch pipeline 6 are communicated with the main pipeline 1, wherein one end is positioned in front of the water pump 2, and the other end is positioned between the water pump 2 and the membrane filter element 4; the valve 5 and the bipolar membrane filter element 3 are sequentially arranged on the branch pipeline 6.
In the scheme, when scale on the filtering membrane 43 does not need to be removed or inhibited, the valve 5 is closed, and water flows into the membrane filter element 4 after flowing through the water pump 2 for filtering. When the scale on the filtering membrane 43 needs to be removed or inhibited, the water pump 2 is turned off, the valve 5 is opened, a larger or smaller voltage is applied to the bipolar membrane filter element 3, and water flows into the membrane filter element 4 after flowing through the bipolar membrane filter element 3 through the branch pipeline 6 and then is in strong acid or weak acid, so that the scale on the filtering membrane 43 is removed or inhibited.
Further, the water purification system comprises a front filter element 7, wherein the front filter element 7 is arranged on the main pipeline 1 and is positioned in front of the water pump 2. In another embodiment, the pre-filter element 7 is arranged on the main pipeline 1, and can be positioned between the water pump 2 and the bipolar membrane filter element 3. In another embodiment, the pre-filter element 7 is arranged on the branch line 6.
As shown in fig. 6, as a third embodiment of the present invention, a method for controlling a long-acting water purification system is disclosed, which is applied to the water purification system described in the first embodiment, and includes the steps of:
s100: starting the water purification system;
s200: and the bipolar membrane filter core is powered on in the positive direction, so that the pH value of the water is acidic.
In step S100, the water purification system is started, and the membrane cartridge 4 starts to filter water. For the step S200, the step S200 may be performed after the membrane cartridge 4 is used for a certain period of time. At this time, the first voltage in step S200 is large, and water having strong acidity is generated, and the scale that has been generated on the filtration membrane 43 is dissolved away. When the membrane cartridge 4 is used, the bipolar membrane cartridge 3 may be positively energized, and the bipolar membrane cartridge 3 may be energized at a low voltage and the acidity of the water is weak, so that the hardness of the water may be reduced and the generation of scale on the filtration membrane 43 may be suppressed. Therefore, the long-acting water purification system controlled by the method can remove or inhibit the scale on the filter membrane 43, ensure the filtering effect and ensure the long-acting use of the membrane filter element 4.
Further, before the bipolar membrane filter element is powered on in the positive direction so as to enable the pH value of water to be acidic, the method comprises the following steps:
the valve is opened, and water in the main pipeline flows into the membrane filter element through the branch pipeline to be filtered;
after a certain time, the valve is closed, and water in the main pipeline flows into the membrane filter element through the bipolar membrane filter element to be filtered.
In this scheme, when need not clear away or restrain the incrustation scale on the filtration membrane 43, open valve 5, because there is the resistance in the water flow through bipolar membrane filter core 3, so water can flow through from tributary pipeline 6, accelerates the filter speed. When the scale on the filtering membrane 43 needs to be removed or inhibited, the valve 5 is closed, a larger or smaller voltage is applied to the bipolar membrane filter element 3, and the water flows through the bipolar membrane filter element 3 and then is in strong acid or weak acid, so that the scale on the filtering membrane 43 is removed or inhibited.
Further, the positive energization of the bipolar membrane filter element to make the pH value of the water acidic specifically comprises the following steps:
after a certain time, the bipolar membrane filter core is powered on in the positive direction, so that the pH value of the water is acidic; and the voltage value of the bipolar membrane filter element is greater than the first voltage preset value. The first voltage preset value can be set according to requirements, such as 80V, 85V, 90V, 95V, 100V, 115V, 120V, 125V, 130V and the like. Preferably, the first voltage preset value is 100V. In addition, a first voltage preset value can also be determined according to the number of layers of the bipolar membrane, specifically, the bipolar membrane of the bipolar membrane filter element has n layers, and the first voltage preset value is 5n-20n volts, preferably 10n volts. For example, the bipolar membrane has 10 layers, and the first voltage preset value ranges from 50 to 200 volts, preferably 100 volts. At this time, the pH value of the water treated by the bipolar membrane filter element 3 is about 1-3, the water is strong in acidity, and scale generated on the filter membrane 43 can be directly dissolved. In the scheme, the prepared purified water can be directly drained because the pH value of the water is small, the water is strong in acidity and is not suitable for drinking. This approach is suitable for situations where strong cleaning is required after long-term use.
In another embodiment, the step of energizing the bipolar membrane filter element in the forward direction to make the PH value of the water acidic is specifically as follows:
meanwhile, the bipolar membrane filter element is electrified in the positive direction, so that the pH value of the water is acidic; and the voltage value of the bipolar membrane filter element is smaller than the first voltage preset value. The first voltage preset value can be set according to requirements, such as 80V, 85V, 90V, 95V, 100V, 115V, 120V, 125V, 130V and the like. Preferably, the first voltage preset value is 100V. In addition, a first voltage preset value can also be determined according to the number of layers of the bipolar membrane, specifically, the bipolar membrane of the bipolar membrane filter element has n layers, and the first voltage preset value is 5n-20n volts, preferably 10n volts. For example, the bipolar membrane has 10 layers, and the first voltage preset value ranges from 50 to 200 volts, preferably 100 volts. At this time, the PH of the water treated by the bipolar membrane cartridge 3 is about 6, and the water is weak in acidity, and the generation of scale on the filtration membrane 43 can be suppressed. In the scheme, because the pH value of water is close to neutral and the acidity is weaker, the water can be normally drunk, so that the bipolar membrane filter element 3 can be electrified to inhibit the generation of scale during water preparation, and normal water preparation is ensured.
As shown in fig. 7, as a third embodiment of the present invention, a long-acting water purification system control method is disclosed, which is applied to the water purification system of the second embodiment, and includes the steps of:
step A: starting the water purification system, closing the valve, and enabling water in the main pipeline to flow into the membrane filter element through the water pump for filtration;
and B: after a certain time, the water pump is shut down, the valve is opened, and the water in the main pipeline flows into the membrane filter element through the branch pipeline for filtration;
and C: and the bipolar membrane filter core is powered on in the positive direction, so that the pH value of the water is acidic.
In the method, when the scale on the filter membrane 43 is not required to be removed or inhibited, the valve 5 is closed, and water flows into the membrane filter element 4 after passing through the water pump 2 for filtration. When the scale on the filtering membrane 43 needs to be removed or inhibited, the water pump 2 is turned off, the valve 5 is opened, a larger or smaller voltage is applied to the bipolar membrane filter element 3, and water flows into the membrane filter element 4 after flowing through the bipolar membrane filter element 3 through the branch pipeline 6 and then is in strong acid or weak acid, so that the scale on the filtering membrane 43 is removed or inhibited.
As a fifth embodiment of the present invention, a water purification apparatus is disclosed, comprising the water purification system as described in the first embodiment or the water purification system as described in the second embodiment.
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 utility model in connection with specific alternative embodiments, and the practice of the utility model should not be construed as limited to those descriptions. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (6)
1. A long-acting water purification system is characterized by comprising a main pipeline, a water pump, a bipolar membrane filter element and a membrane filter element: the water pump, the bipolar membrane filter element and the membrane filter element are sequentially arranged on the main pipeline; the water purification system comprises a valve and a branch pipeline; two ends of the branch pipeline are communicated with the main pipeline, wherein one end of the branch pipeline is positioned between the water pump and the bipolar membrane filter element, and the other end of the branch pipeline is positioned between the bipolar membrane filter element and the membrane filter element; the valve is arranged on the branch pipeline.
2. The water purification system of claim 1, comprising a pre-filter element disposed on the main conduit before the water pump.
3. The water purification system of claim 1, comprising a pre-filter disposed on the main conduit between the water pump and the bipolar membrane filter.
4. The water purification system of claim 1, comprising a pre-filter element disposed on the bypass line.
5. The water purification system of claim 1, wherein the water purification system comprises the membrane filter element being a reverse osmosis filter element, a nanofiltration filter element, or an ultrafiltration filter element.
6. A water purification apparatus, comprising the water purification system of any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023167248.7U CN216687753U (en) | 2020-12-24 | 2020-12-24 | Long-acting water purification system and water purification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023167248.7U CN216687753U (en) | 2020-12-24 | 2020-12-24 | Long-acting water purification system and water purification equipment |
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| Publication Number | Publication Date |
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| CN216687753U true CN216687753U (en) | 2022-06-07 |
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| CN202023167248.7U Active CN216687753U (en) | 2020-12-24 | 2020-12-24 | Long-acting water purification system and water purification equipment |
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| CN (1) | CN216687753U (en) |
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