CN111547825A - Water distribution net, electrodialysis device and water purifier - Google Patents
Water distribution net, electrodialysis device and water purifier Download PDFInfo
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- CN111547825A CN111547825A CN202010466394.5A CN202010466394A CN111547825A CN 111547825 A CN111547825 A CN 111547825A CN 202010466394 A CN202010466394 A CN 202010466394A CN 111547825 A CN111547825 A CN 111547825A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 591
- 238000000909 electrodialysis Methods 0.000 title claims abstract description 62
- 239000008213 purified water Substances 0.000 claims description 106
- 239000012528 membrane Substances 0.000 claims description 23
- 238000000926 separation method Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000000746 purification Methods 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 4
- 230000014759 maintenance of location Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000008399 tap water Substances 0.000 description 12
- 235000020679 tap water Nutrition 0.000 description 12
- 101000927062 Haematobia irritans exigua Aquaporin Proteins 0.000 description 9
- 239000012141 concentrate Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 150000001450 anions Chemical class 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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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
- C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
-
- 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
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
- C02F1/4695—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis electrodeionisation
Abstract
The invention relates to the technical field of water purification, and discloses a water distribution net, an electrodialysis device and a water purifier. The water distribution net comprises a net body, wherein the net body comprises at least two water distribution areas which are sequentially arranged in an isolated manner through at least one isolating strip, and the net body comprises a plurality of water channels arranged at the first end of each water distribution area and a plurality of water channels arranged at the second end of the same water distribution area; one part of the plurality of water channels at the first end is communicated with the water distribution area, and the other part of the plurality of water channels is isolated from the same water distribution area; one part of the plurality of water passages of the second end is communicated with the water distribution area, and the other part of the plurality of water passages is isolated from the same water distribution area. After the water distribution net is arranged in the electrodialysis device, the retention time of the concentrated water in the electrodialysis device can be prolonged, the concentrated water is subjected to multi-stage filtration, the utilization efficiency of the water is improved, the discharge amount of the concentrated water is reduced, and the service life and the water purification efficiency of the electrodialysis device are ensured.
Description
Technical Field
The invention relates to the technical field of water purification, in particular to a water distribution net, an electrodialysis device and a water purifier.
Background
In the electrodialyzer, under the action of an external electric field between the anode and the cathode, anions and cations in the aqueous solution entering the compartments can migrate to the anode and the cathode in a directional manner respectively, and because the anode membrane only allows the cations to pass and prevents the anions to pass and the cathode membrane only allows the anions to pass and prevents the cations to pass, the anions and the cations in the dilute chamber migrate to the adjacent concentrated chamber, thereby desalinating the salt-containing water. The electrodialyzer can remove various ions in water and effectively reduce the TDS of the water.
However, the electrodialyzer has a problem of discharging concentrate, and it is currently practiced to reduce the discharge amount of concentrate by connecting the concentrate discharge water in series with another electrodialyzer. However, this method results in a large space occupied by a plurality of electrodialysers connected in series, and in addition, the concentrated water with high TDS enters the next electrodialyser, which increases the operation load of the next electrodialyser, reduces the desalination efficiency and prolongs the service life.
Disclosure of Invention
The invention aims to provide a water distribution net which is arranged in an electrodialysis device, can prolong the retention time of concentrated water in the electrodialysis device, can perform multi-stage filtration on the concentrated water, improves the utilization efficiency of the water, reduces the discharge amount of the concentrated water, and ensures the service life and the water purification efficiency of the electrodialysis device.
To this end, in a first aspect, the present invention provides a water distribution net, including a net body, where the net body includes at least two water distribution areas sequentially arranged by at least one isolation strip, where the net body includes a plurality of water channels disposed at a first end of each water distribution area and a plurality of water channels disposed at a second end of the same water distribution area; one part of the plurality of water channels at the first end is communicated with the water distribution area, and the other part of the plurality of water channels is isolated from the same water distribution area; one part of the plurality of water passages at the second end is communicated with the water distribution area, and the other part of the plurality of water passages is isolated from the same water distribution area.
In the technical scheme, the net body of the water distribution net comprises at least two water distribution areas which are sequentially arranged in a spaced manner through at least one isolating strip, and one part of a plurality of water channels at the first end is communicated with the water distribution areas, and the other part of the plurality of water channels is isolated from the same water distribution area; one part of the plurality of water channels at the second end is communicated with the water distribution area, and the other part is isolated from the same water distribution area, thus, a plurality of water distribution nets are respectively arranged in the water chambers of the electrodialysis device, a plurality of isolated purified water chambers are formed in the electrodialysis device, the water channels of the adjacent water distribution nets communicated with the respective water distribution areas are communicated with the water channels isolated from the respective water distribution areas to form a plurality of water flow channels extending along the stacking direction of the purified water chambers, thus, the purified water generated by ionizing the purified water in the purified water chamber at the upstream can be discharged, the generated concentrated water can enter the purified water chamber at the downstream, and if necessary, tap water can be introduced into the purified water chamber at the downstream or purified to dilute the concentrated water, thus, after the water distribution nets are arranged in the electrodialysis device, the retention time of the concentrated water in the electrodialysis device can be prolonged, and the concentrated water can be subjected to multi-stage filtration, the utilization efficiency of water is improved, the discharge amount of concentrated water is reduced, and the service life and the water purification efficiency of the electrodialysis device are ensured.
Further, in the water distribution network of the second aspect, at least two of the water distribution regions are communicated.
Furthermore, at least two water distribution areas are communicated in parallel.
In addition, any end of the net body is provided with a communication channel which communicates with the water channels which are adjacent to the same end and communicated with the water distribution area.
Optionally, at least one part of the isolating strip is formed with a gap, and at least two water distribution areas are communicated through the gap.
In addition, in the water distribution net of the third aspect, the net body includes a first water distribution area and a second water distribution area separated by one of the barrier strips; the net body comprises a first water channel and a second water channel which are arranged at one end of the first water distribution area, and a third water channel and a fourth water channel which are arranged at the other end of the first water distribution area; the net body comprises a fifth water channel and a sixth water channel which are arranged at one end of the second water distribution area, and a seventh water channel and an eighth water channel which are arranged at the other end of the second water distribution area; the first water channel and the fourth water channel are respectively communicated with the first water distribution area, and the second water channel and the third water channel are isolated from the first water distribution area; the fifth water channel and the eighth water channel are respectively communicated with the second water distribution area, and the sixth water channel and the seventh water channel are isolated from the second water distribution area.
Further, in the water distribution net of the fourth aspect, a communication passage is formed at the other end of the net body, and the communication passage communicates the fourth water passage with the eighth water passage.
In addition, in the water distribution net of the fifth aspect, the net body comprises a first water distribution area and a second water distribution area which are separated by one of the barrier strips, wherein the net body comprises a first water channel and a second water channel which are arranged at one end of the first water distribution area, and a third water channel and a fourth water channel which are arranged at the other end of the first water distribution area; the net body comprises a fifth water channel and a sixth water channel which are arranged at one end of the second water distribution area, and a seventh water channel and an eighth water channel which are arranged at the other end of the second water distribution area; the first water channel and the fourth water channel are isolated from the first water distribution area, and the second water channel and the third water channel are respectively communicated with the first water distribution area; the fifth water channel and the eighth water channel are isolated from the second water distribution area, and the sixth water channel and the seventh water channel are respectively communicated with the second water distribution area.
Further, in the water distribution net of the sixth aspect, a communication passage is formed at the other end of the net body, and the communication passage communicates the third water passage and the seventh water passage.
In addition, in the water distribution net of the seventh aspect, at least a part of the isolation strip is formed with a gap, and the first water distribution area and the second water distribution area are communicated through the gap.
In addition, the invention provides an electrodialysis device, which comprises an anode and a cathode, an anode membrane and a cathode membrane, wherein the anode and the cathode are arranged at intervals, the anode membrane and the cathode membrane are sequentially and alternately stacked between the anode and the cathode, and a water chamber is formed between the adjacent anode membrane and the adjacent cathode membrane; the electrodialysis device comprises a plurality of water distribution nets of the first aspect, the water distribution nets of the first aspect are alternately arranged in each water chamber to form a plurality of separated purified water chambers in the electrodialysis device, wherein the water channels of the adjacent water distribution nets communicated with the respective water distribution regions are communicated with the water channels separated from the respective water distribution regions to form a plurality of water flow channels of the respective purified water chambers extending along the stacking direction.
Thus, as mentioned above, the purified water generated by the purified water ionized by the upstream purified water chamber can be discharged, the generated concentrated water can enter the downstream purified water chamber, and if necessary, tap water can be introduced into the downstream purified water chamber or the purified water can be purified to dilute the concentrated water.
In addition, a plurality of the purified water chambers can be communicated through a water distribution net.
Further, the electrodialysis device comprises a plurality of water distribution nets of the second aspect arranged on the anode side or the cathode side to communicate the respective purified water chambers.
In addition, the electrodialysis device comprises a plurality of water distribution nets of the third aspect and a plurality of water distribution nets of the fifth aspect, wherein the water distribution net of the third aspect is used as a first water distribution net, the water distribution net of the fifth aspect is used as a second water distribution net, wherein the first and second water distribution nets are alternately arranged in the water chambers to form first and second purified water zones separated from each other in the electrodialysis device, and the first water passage, the second water passage, the third water passage, the fourth water passage, the fifth water passage, the sixth water passage, the seventh water passage, and the eighth water passage of each of the first water distribution net and the second water distribution net are respectively communicated to form four water flow passages extending in the stacking direction of each of the first purified water zone and the second purified water zone.
In addition, the electrodialysis device comprises a water distribution net of the fourth aspect and a water distribution net of the sixth aspect, the water distribution net of the fourth aspect is used as a third water distribution net, the water distribution net of the sixth aspect is used as a fourth water distribution net, wherein the third water distribution net and the fourth water distribution net are simultaneously positioned on the anode side or the cathode side of the electrodialysis device, and the communicated fourth water channel and the eighth water channel, and the communicated third water channel and the communicated seventh water channel respectively communicate the first purified water zone and the second purified water zone.
In addition, the electrodialysis device comprises two water distribution nets of the seventh aspect to communicate the first purified water zone and the second purified water zone, respectively, and one of the two water distribution nets of the seventh aspect is used as a fifth water distribution net and the other is used as a sixth water distribution net.
Finally, the invention provides a water purifier provided with an electrodialysis device as described above. As described above, the overall quality of the water purifier is effectively improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding 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 and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a first water distribution net according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second water distribution net according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third water distribution net according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a fourth water distribution net according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a fifth water distribution net according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a sixth water distribution net according to an embodiment of the present invention;
FIG. 7 is a schematic view of another configuration of a first water distribution net according to an embodiment of the present invention;
FIG. 8 is a schematic view of another structure of a second water distribution net according to an embodiment of the present invention;
FIG. 9 is a schematic view of a structure of an electrodialysis unit according to an embodiment of the present invention;
fig. 10 is a schematic view of another structure of an electrodialysis unit according to an embodiment of the present invention.
Description of the reference numerals
1-a first water channel, 2-a second water channel, 3-a third water channel, 4-a fourth water channel, 5-a fifth water channel, 6-a sixth water channel, 7-a seventh water channel, 8-an eighth water channel, 9-a net body, 10-a separation strip, 11-a first water distribution area, 12-a second water distribution area, 13-a communication channel, 14-an anode, 15-a cathode, 16-an anode membrane, 17-a cathode membrane, 18-a water chamber, 21-a first water distribution net, 22-a second water distribution net, 23-a third water distribution net, 24-a fourth water distribution net, 25-a fifth water distribution net, 26-a sixth water distribution net, 31-a first purified water area, 32-a second purified water area, and 111,112,113,114,115,116,117,118-a water port.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Referring to fig. 1, 2, 7 and 8, in a first aspect, the water distribution net provided by the present invention comprises a net body 9, wherein the net body 9 comprises at least two water distribution areas sequentially arranged at intervals by at least one isolation strip 10, wherein the net body 9 comprises a plurality of water channels arranged at a first end of each water distribution area and a plurality of water channels arranged at a second end of the same water distribution area; one part of the plurality of water channels at the first end is communicated with the water distribution area, and the other part of the plurality of water channels is isolated from the same water distribution area; one part of the plurality of water passages of the second end is communicated with the water distribution area, and the other part of the plurality of water passages is isolated from the same water distribution area.
In the technical scheme, the net body of the water distribution net comprises at least two water distribution areas which are sequentially arranged in a spaced manner through at least one isolating strip, and one part of a plurality of water channels at the first end is communicated with the water distribution areas, and the other part of the plurality of water channels is isolated from the same water distribution area; one part of the plurality of water channels at the second end is communicated with the water distribution area, and the other part of the plurality of water channels is isolated from the same water distribution area, thus, a plurality of water distribution nets are respectively arranged in the water chambers of the electrodialysis device, a plurality of isolated purified water chambers are formed in the electrodialysis device, the water channels of the adjacent water distribution nets communicated with the respective water distribution areas are communicated with the water channels isolated from the respective water distribution areas to form a plurality of water flow channels extending along the stacking direction of the purified water chambers, thus, the purified water generated by ionizing purified water in the purified water chamber at the upstream can be discharged, the generated concentrated water can enter the purified water chamber at the downstream, if necessary, tap water can be introduced into the purified water chamber at the downstream or purified to dilute the concentrated water, thus, after the water distribution nets are arranged in the electrodialysis device, the retention time of the purified water in the electrodialysis device can be prolonged, and the effect of better maintaining the pressure between the membrane groups can be achieved, meanwhile, the multi-stage filtration can be carried out on the concentrated water, the utilization efficiency of the water is improved, the discharge amount of the concentrated water is reduced, and the service life and the water purification efficiency of the electrodialysis device are ensured.
The number of the isolating bars 10 can be set according to actual requirements, for example, when there is one isolating bar 10, the net body 9 can be divided into two water distribution areas, when there is two isolating bars 10, the net body 9 can be divided into three water distribution areas which are arranged in sequence and spaced, and so on. In addition, the shape of the separator 10 is not limited to the straight bar shape shown in the drawings, but may be a curved shape, or may be a stepped shape. Therefore, the shape of the separator 10 is not particularly limited.
Of course, the number of the water channels may be set according to actual requirements, and may be 2 or more than 2, for example.
When such a plurality of water distribution nets, for example, the first water distribution net 21 shown in fig. 1 and the second water distribution net 22 shown in fig. 2 are alternately arranged, the first water channel 1, the second water channel 2, the third water channel 3, the fourth water channel 4, the fifth water channel 5, the sixth water channel 6, the seventh water channel 7 and the eighth water channel 8 of the plurality of water distribution nets will be communicated in sequence, for example, when the inlet water flows through the first water channel 1 and the second water channel 2 which are communicated, the first water channel 1 on the first water distribution net 21 leads the water to the first water distribution area 11 of the first water distribution net 21, the first water channel 1 on the second water distribution net 21 leads the water to the first water distribution area 11 of the second water distribution net 22, and then ionized to purify in a first purified water zone 31 such as shown in fig. 9 to form concentrated water and purified water, which can be directly discharged from the first purified water zone 31, while the concentrate can be introduced into the second purified water zone 32, such as shown in fig. 9, through an external line. If desired, tap water or a portion of the purified water can be introduced into the second purified water zone to dilute the concentrate.
In addition, referring to the embodiment shown in fig. 3 and 4 and the embodiment shown in fig. 5 and 6, in the water distribution net of the second aspect, at least two water distribution regions are communicated. In this way, for example, in a water distribution network stack formed by alternately arranging the first water distribution network 21 shown in fig. 1 and the second water distribution network 22 shown in fig. 2, or on one side of the water distribution network stack, the third water distribution network 23 shown in fig. 3 and the fourth water distribution network 24 shown in fig. 4 may be alternately arranged, or the fifth water distribution network 25 shown in fig. 5 and the sixth water distribution network 26 shown in fig. 6 may be alternately arranged, i.e., the first purified water zone 31 and the second purified water zone 32 shown in fig. 9 and 10 may be communicated with each other, for example.
Of course, at least two water distribution areas can be communicated in series, so that the concentrated water generated by the upstream purified water chamber can sequentially flow through the downstream purified water chamber, at the moment, if the concentration of the concentrated water is too high, tap water or a part of purified water is required to be introduced for dilution, or at least two water distribution areas are communicated in parallel, namely, the concentrated water can separately flow into the downstream purified water chambers, so that the concentrated water amount entering each downstream purified water chamber is reduced, and at the moment, if required, the tap water or a part of purified water can also be introduced for diluting the concentrated water.
In addition, the communication of at least two water distribution regions can be achieved in various ways, for example, in one way, as shown in fig. 3 and 4, a communication channel 13 is formed at any end of the net body 9, and the communication channel 13 communicates the water channels adjacent to the same end and communicated with the water distribution regions, so that the self-structure of the net body 9 can be fully utilized to communicate a plurality of water distribution regions, for example, the series communication or the parallel communication. Or, in another mode, as shown in fig. 5 and 6, at least a portion of the separation bar 10 is formed with a gap, and at least two water distribution areas are communicated through the gap, so that the structure of the separation bar 10 can be fully utilized to communicate the water distribution areas. Of course, the notch may be a portion of the division bar 10, or the notch may be formed over the entire length of the division bar 10, that is, the division bar 10 is removed, so that a plurality of water distribution areas are directly connected into one piece, such as the structure shown in fig. 5 and 6.
The following describes specific structures of several water distribution nets. In the first water distribution net 21 of the third aspect shown in fig. 1, the net body 9 includes a first water distribution area 11 and a second water distribution area 12 separated by a partition bar 10; the net body 9 comprises a first water channel 1 and a second water channel 2 which are arranged at one end of a first water distribution area 11, and a third water channel 3 and a fourth water channel 4 which are arranged at the other end of the first water distribution area 11; the net body 9 comprises a fifth water channel 5 and a sixth water channel 6 which are arranged at one end of the second water distribution area 12, and a seventh water channel 7 and an eighth water channel 8 which are arranged at the other end of the second water distribution area 12; the first water channel 1 and the fourth water channel 4 are respectively communicated with the first water distribution area 11, and the second water channel 2 and the third water channel 3 are isolated from the first water distribution area 11; the fifth water channel 5 and the eighth water channel 8 are respectively communicated with the second water distribution area 12, and the sixth water channel 6 and the seventh water channel 7 are isolated from the second water distribution area 12. Thus, the water flowing through the first water passage 1 enters the first water distribution area 11, is then distributed in the first water distribution area 11, and then flows into the fourth water passage 4.
In addition, in the third water distribution net 23 of the fourth aspect shown in fig. 3 formed on the basis of the first water distribution net 21, that is, the other end of the net body 9 is formed with the communication passage 13, and the communication passage 13 communicates the fourth water passage 4 and the eighth water passage 8. Thus, in the third water distribution network 23, the water flowing through the first water channel 1 will enter the first water distribution area 11, then be distributed in the first water distribution area 11, then flow into the fourth water channel 4, then flow into the eighth water channel 8 through the communication channel 13, and at the same time, will enter the second water distribution area 12, then be distributed in the second water distribution area 12, and then flow into the fifth water channel 5.
In the second water distribution net 22 of the fifth aspect shown in fig. 2, the net body 9 includes a first water distribution area 11 and a second water distribution area 12 separated by a partition bar 10, wherein the net body 9 includes a first water passage 1 and a second water passage 2 provided at one end of the first water distribution area 11 and a third water passage 3 and a fourth water passage 4 provided at the other end of the first water distribution area 11; the net body 9 comprises a fifth water channel 5 and a sixth water channel 6 which are arranged at one end of the second water distribution area 12, and a seventh water channel 7 and an eighth water channel 8 which are arranged at the other end of the second water distribution area 12; the first water channel 1 and the fourth water channel 4 are isolated from the first water distribution area 11, and the second water channel 2 and the third water channel 3 are respectively communicated with the first water distribution area 11; the fifth water channel 5 and the eighth water channel 8 are isolated from the second water distribution area 12, and the sixth water channel 6 and the seventh water channel 7 are respectively communicated with the second water distribution area 12. Thus, the water flowing through the second water passage 2 enters the first water distribution area 11, is then distributed in the first water distribution area 11, and then flows into the third water passage 3. While the water circulating through the first water passage 1 continues to flow into the first water passage 1 of the first water distribution network 21 shown in fig. 1.
In addition, in the fourth water distribution net 24 of the sixth aspect shown in fig. 4 formed on the basis of the second water distribution net 22, the other end of the net body 9 is formed with the communication passage 13, and the communication passage 13 communicates the third water passage 3 and the seventh water passage 7. Thus, the water flowing through the second water passage 2 will enter the first water distribution area 11, then be distributed in the first water distribution area 11, then flow into the third water passage 3, then flow into the seventh water passage 7 through the communication passage 13, and at the same time, will enter the second water distribution area 12, then be distributed in the second water distribution area 12, and then flow into the sixth water passage 6.
In addition, at least a part of the division bar 10 in the seventh aspect is formed with a notch through which the first water distribution region 11 and the second water distribution region 12 communicate. Of course, the gap may be a part of the division bar 10, or the gap may be formed over the entire length of the division bar 10, that is, the division bar 10 is removed, so that a plurality of water distribution areas are directly connected into one piece, for example, the fifth water distribution net 25 shown in fig. 5 and the sixth water distribution net 26 shown in fig. 6.
In addition, the present invention provides an electrodialysis apparatus, referring to fig. 9 and 10, comprising an anode 14 and a cathode 15, and an anode membrane 16 and a cathode membrane 17, wherein the anode 14 and the cathode 15 are arranged at intervals, the anode membrane 17 and the cathode membrane 17 are alternately stacked between the anode 14 and the cathode 15 in sequence, and a water chamber 18 is formed between the adjacent anode membrane 16 and the cathode membrane 17; the electrodialysis device comprises a plurality of the water distribution nets of the above first aspect, which are alternately arranged in each water chamber 18 to form a plurality of separated purified water chambers in the electrodialysis device, wherein the water channels of adjacent water distribution nets communicating with the respective water distribution regions communicate with the water channels separated from the respective water distribution regions to form a plurality of water flow channels of each purified water chamber extending in the stacking direction, for example, a plurality of first water distribution nets 21 shown in fig. 1 and second water distribution nets 22 shown in fig. 2 are alternately arranged in each water chamber 18, respectively, or a plurality of first water distribution nets 21 shown in fig. 7 and second water distribution nets 22 shown in fig. 8 are alternately arranged in each water chamber 18, respectively.
Thus, as mentioned above, the purified water generated by the purified water ionized by the upstream purified water chamber can be discharged, the generated concentrated water can enter the downstream purified water chamber, and if necessary, tap water can be introduced into the downstream purified water chamber or the purified water can be purified to dilute the concentrated water.
Of course, in practical use of the electrodialysis device, the concentrated water generated in the upstream purified water chamber can be introduced into the downstream purified water chamber through the external pipeline of the electrodialysis device. Or the plurality of purified water chambers can be communicated through the water distribution net, so that the self structure of the water distribution net can be utilized, and the whole occupied space of the electrodialysis device is reduced.
For example, in one embodiment, the electrodialysis device comprises a plurality of water distribution nets of the second aspect disposed on the anode side or the cathode side to communicate the respective purified water chambers. For example, it may pass through the third water distribution net 23 shown in fig. 3 and the fourth water distribution net 24 shown in fig. 4, or may pass through the fifth water distribution net 25 shown in fig. 5 and the sixth water distribution net 26 shown in fig. 6.
In a specific embodiment of the electrodialysis unit, with reference to fig. 10, the electrodialysis unit comprises a plurality of water-distributing nets of the third aspect and a plurality of water-distributing nets of the fifth aspect, wherein the water distribution net of the third aspect is used as a first water distribution net 21, the water distribution net of the fifth aspect is used as a second water distribution net 22, wherein, in each water chamber 18 with the first water distribution net 21 and the second water distribution net 22 which are alternately arranged, to form a first purified water zone 31 and a second purified water zone 32 separated within the electrodialysis unit, and the first water passage 1, the second water passage 2, the third water passage 3, the fourth water passage 4, the fifth water passage 5, the sixth water passage 6, the seventh water passage 7 and the eighth water passage 8 of each of the first water distribution net 21 and the second water distribution net 22 are respectively communicated to form four water flow passages extending in the stacking direction of each of the first purified water zone 31 and the second purified water zone 32. For example, the feed water flowing through the communicating first water passage 1 will be distributed into a part of the water chambers through the first water distribution net 21, and the feed water flowing through the communicating second water passage 2 will be distributed into another part of the water chambers alternately arranged in sequence with the part of the water chambers through the second water distribution net 22. Thus, one part of the water chambers is used as a desalination chamber to flow out the purified water, the other part of the water chambers is used as a concentration chamber to flow out the concentrated water, the purified water enters one of the third and fourth communicated water channels, and the concentrated water enters the other of the third and fourth communicated water channels.
For example, in the electrodialysis device shown in fig. 10, the first purified water zone 31 and the second purified water zone 32 are communicated with each other through an external pipeline, for example, tap water enters from the water ports 111 and 112 respectively, then enters into each water chamber through the communicated first water channel 1 and the communicated second water channel 2, after water is ionized and purified in each water chamber of the first purified water zone 31, the first purified water flows out from the water port 113, the first concentrated water flows out from the water port 114 and flows into the water ports 115 and 116 through the external pipeline, and then enters into each water chamber of the second purified water zone 32 through the communicated seventh water channel 7 and the eighth water channel 8, and then after ionized and purified, the second purified water flows out from one of the water ports 117 and 118, and the second concentrated water flows out from the other of the water ports 117 and 118. If desired, a portion of the primary purified water or tap water may be fed to the second purified water zone 32 to dilute the primary concentrate, as indicated by the arrows circumscribing the piping in FIG. 10. The primary purified water and the secondary purified water can be used together or can be used separately.
In the electrodialysis device shown in fig. 9, the first purified water zone 31 and the second purified water zone 32 are connected through a water distribution net.
For example, in one embodiment, the electrodialysis device comprises a water distribution net of the fourth aspect as the third water distribution net 23 and a water distribution net of the sixth aspect as the fourth water distribution net 24, wherein the third water distribution net 23 and the fourth water distribution net 24 are simultaneously located on the anode side or the cathode side of the electrodialysis device, and the communicated fourth water channel 4 and the eighth water channel 8 and the communicated third water channel 3 and the communicated seventh water channel 7 respectively communicate the first purified water zone 31 with the second purified water zone 32. Thus, tap water enters from the water ports 111 and 112 respectively and then enters into each water chamber through the communicated first water passage 1 and the communicated second water passage 2, after the water is ionized and purified in each water chamber of the first purified water region 31, the primary purified water flows out from one of the water ports 113 and 114, the primary concentrated water flows into the second purified water region 32 through the communication passage 13 and then enters into each water chamber of the second purified water region 32 through the communicated seventh water passage 7 and the eighth water passage 8, and after the ionized and purified water, the secondary purified water flows out from one of the water ports 117 and 118 and the secondary concentrated water flows out from the other of the water ports 117 and 118. If necessary, a portion of the first purified water or tap water may be fed into the second purified water zone 32 to dilute the first concentrated water, for example, via the water ports 115 and 116, and the pressure of each water chamber of the second purified water zone 32 may be ensured by the fed portion of the first purified water or tap water.
Of course, in the electrodialysis devices shown in fig. 9 and 10, the water port 111 and 118 can allow the electrodialysis device to be capable of inverting and flowing backwards.
For another example, in another embodiment, the electrodialysis device comprises two water distribution nets of the seventh aspect to communicate the first purified water zone 31 and the second purified water zone 32, respectively, and one of the two water distribution nets of the seventh aspect is used as the fifth water distribution net 25 shown in fig. 5 and the other is used as the sixth water distribution net 26 shown in fig. 6. For example, on the anode side or the cathode side of the electrodialysis device, the water in the first purified water zone 31 can flow into the second purified water zone 32 through the fifth water distribution net 25 and the sixth water distribution net 26, and in turn, the water in the second purified water zone 32 can flow into the first purified water zone 31 through the fifth water distribution net 25 and the sixth water distribution net 26.
Finally, the invention provides a water purifier provided with an electrodialysis device as described above. As described above, the overall quality of the water purifier is effectively improved.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (17)
1. A water distribution net is characterized by comprising a net body (9), wherein the net body (9) comprises at least two water distribution areas which are sequentially arranged at intervals through at least one isolating strip (10), wherein,
the net body (9) comprises a plurality of water channels arranged at the first end of each water distribution area and a plurality of water channels arranged at the second end of the same water distribution area;
one part of the plurality of water channels at the first end is communicated with the water distribution area, and the other part of the plurality of water channels is isolated from the same water distribution area;
one part of the plurality of water passages at the second end is communicated with the water distribution area, and the other part of the plurality of water passages is isolated from the same water distribution area.
2. The water distribution network of claim 1, wherein at least two of the water distribution zones are in communication.
3. The water distribution network of claim 2, wherein at least two of the water distribution zones are in parallel communication.
4. A water distribution net according to claim 2 or 3, characterized in that either end of the net body (9) is formed with a communication channel (13), and the communication channel (13) communicates with the water channel adjacent to the same end and communicating with the water distribution area.
5. A water distribution net according to claim 2 or 3, characterized in that at least a part of the division bar (10) is formed with a gap through which at least two of the water distribution areas communicate.
6. Water distribution network according to claim 1, characterised in that the network body (9) comprises a first water distribution area (11) and a second water distribution area (12) separated by one of the spacers (10); wherein the content of the first and second substances,
the net body (9) comprises a first water channel (1) and a second water channel (2) which are arranged at one end of the first water distribution area (11), and a third water channel (3) and a fourth water channel (4) which are arranged at the other end of the first water distribution area (11);
the net body (9) comprises a fifth water channel (5) and a sixth water channel (6) which are arranged at one end of the second water distribution area (12), and a seventh water channel (7) and an eighth water channel (8) which are arranged at the other end of the second water distribution area (12);
the first water channel (1) and the fourth water channel (4) are respectively communicated with the first water distribution area (11), and the second water channel (2) and the third water channel (3) are isolated from the first water distribution area (11);
the fifth water channel (5) and the eighth water channel (8) are respectively communicated with the second water distribution area (12), and the sixth water channel (6) and the seventh water channel (7) are isolated from the second water distribution area (12).
7. Water distribution net according to claim 6, characterized in that the net body (9) is formed with a communication channel (13) at the other end, and the communication channel (13) communicates the fourth water channel (4) and the eighth water channel (8).
8. Water distribution network according to claim 1, characterised in that the network body (9) comprises a first water distribution area (11) and a second water distribution area (12) separated by one of the separation strips (10), wherein,
the net body (9) comprises a first water channel (1) and a second water channel (2) which are arranged at one end of the first water distribution area (11), and a third water channel (3) and a fourth water channel (4) which are arranged at the other end of the first water distribution area (11);
the net body (9) comprises a fifth water channel (5) and a sixth water channel (6) which are arranged at one end of the second water distribution area (12), and a seventh water channel (7) and an eighth water channel (8) which are arranged at the other end of the second water distribution area (12);
the first water channel (1) and the fourth water channel (4) are isolated from the first water distribution area (11), and the second water channel (2) and the third water channel (3) are respectively communicated with the first water distribution area (11);
the fifth water channel (5) and the eighth water channel (8) are isolated from the second water distribution area (12), and the sixth water channel (6) and the seventh water channel (7) are respectively communicated with the second water distribution area (12).
9. A water distribution net according to claim 8, characterized in that the other end of the net body (9) is formed with a communication passage (13), the communication passage (13) communicating the third water passage (3) and the seventh water passage (7).
10. A water distribution net according to claim 6 or 8, characterized in that at least a part of the division bar (10) is formed with a gap through which the first water distribution area (11) and the second water distribution area (12) communicate.
11. Electrodialysis unit, characterized in that it comprises an anode (14) and a cathode (15), an anode membrane (16) and a cathode membrane (17), wherein the anode (14) and the cathode (15) are arranged at intervals, the anode membrane and the cathode membrane (17) are alternately stacked between the anode (14) and the cathode (15) in sequence, and a water chamber (18) is formed between the adjacent anode membrane (16) and the cathode membrane (17);
the electrodialysis unit comprises a plurality of water distribution nets according to claim 1, which are alternately arranged in each of the water chambers (18) to form a plurality of separated purified water chambers within the electrodialysis unit, wherein the water channels of adjacent water distribution nets communicating with the respective water distribution regions communicate with the water channels separated from the respective water distribution regions to form a plurality of water flow channels of the respective purified water chambers extending in the stacking direction.
12. Electrodialysis unit according to claim 11, characterized in that a plurality of the purified water chambers can communicate through a water distribution network.
13. Electrodialysis unit according to claim 12, characterized in that it comprises a plurality of water distribution nets according to claim 2 arranged on the anode side or the cathode side to communicate the respective purified water chambers.
14. Electrodialysis unit according to any of claims 11-13, comprising a plurality of water distribution nets according to claim 6 and a plurality of water distribution nets according to claim 8, wherein a water distribution net according to claim 6 is used as the first water distribution net (21) and a water distribution net according to claim 8 is used as the second water distribution net (22), wherein,
the first and second water distribution nets (21, 22) are alternately arranged within the respective water chambers (18) to form first and second purified water regions (31, 32) separated within the electrodialysis device, and the first, second, third, fourth, fifth, sixth, seventh and eighth water channels (1, 2, 3, 4, 5, 6, 7, 8) of the first and second water distribution nets (21, 22) respectively communicate to form four water flow channels extending in the stacking direction of the first and second purified water regions (31, 32) respectively.
15. Electrodialysis unit according to claim 14, characterized in that it comprises a water distribution network according to claim 7 and a water distribution network according to claim 9, the water distribution network according to claim 7 being a third water distribution network (23) and the water distribution network according to claim 9 being a fourth water distribution network (24), wherein the third water distribution network (23) and the fourth water distribution network (24) are simultaneously located on the anode side or the cathode side of the electrodialysis unit, and the communicating fourth water channels (4) and eighth water channels (8) and the communicating third water channels (3) and seventh water channels (7) communicate the first purified water zone (31) and the second purified water zone (32), respectively.
16. Electrodialysis unit according to claim 14, characterized in that it comprises two water distribution nets according to claim 10 to connect the first purified water zone (31) and the second purified water zone (32), respectively, one of the two water distribution nets according to claim 10 being a fifth water distribution net (25) and the other being a sixth water distribution net (26).
17. A water purifier characterized in that it is provided with an electrodialysis device according to any one of claims 11 to 16.
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| CN202010466394.5A CN111547825A (en) | 2020-05-28 | 2020-05-28 | Water distribution net, electrodialysis device and water purifier |
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| CN202010466394.5A CN111547825A (en) | 2020-05-28 | 2020-05-28 | Water distribution net, electrodialysis device and water purifier |
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