CN109231361B - Water treatment system, control method thereof and filter element structure - Google Patents
Water treatment system, control method thereof and filter element structure Download PDFInfo
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- CN109231361B CN109231361B CN201810996200.5A CN201810996200A CN109231361B CN 109231361 B CN109231361 B CN 109231361B CN 201810996200 A CN201810996200 A CN 201810996200A CN 109231361 B CN109231361 B CN 109231361B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 495
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000011010 flushing procedure Methods 0.000 claims abstract description 94
- 238000001914 filtration Methods 0.000 claims abstract description 65
- 239000008213 purified water Substances 0.000 claims description 52
- 239000002699 waste material Substances 0.000 claims description 30
- 239000012528 membrane Substances 0.000 claims description 25
- 238000003860 storage Methods 0.000 claims description 21
- 239000002351 wastewater Substances 0.000 claims description 19
- 238000000926 separation method Methods 0.000 claims description 16
- 238000000108 ultra-filtration Methods 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 11
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000000746 purification Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 244000261422 Lysimachia clethroides Species 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The application discloses a water treatment system, a control method thereof and a filter element structure, wherein the water treatment system comprises a first filter device, the first filter device comprises a first chamber, a second chamber and a third chamber which are mutually independent, a filter structure is arranged in each chamber, the water treatment system can form a water making flow path and a flushing flow path, the water treatment system also comprises a switching device, and the switching device is configured to switch the first chamber and the second chamber into the water making flow path and the flushing flow path and switch the third chamber into the water making flow path. When the first cavity is used as the water making cavity, the second cavity can be used as the flushing cavity, the water making cavity and the flushing cavity can be interchanged, the structure is simple and reasonable, the cleaning is easy, and the service life of the first filtering device is prolonged, so that the service life of the water treatment system is prolonged.
Description
Technical Field
The application relates to the technical field of water treatment, in particular to a water treatment system, a control method thereof and a filter element structure.
Background
The ultrafiltration membrane technology is a green and efficient water purification treatment technology, and the ultrafiltration membrane filter core has good interception effect on pollutants such as sediment, bacteria, viruses, colloid, organic matters and the like. The ultrafiltration membrane filter core widely applied in the market is an external pressure type hollow fiber ultrafiltration membrane component, a single-inlet and single-outlet dead-end filtering mode is adopted in most cases, water is fed from one end, and purified water is produced after the filtration of the ultrafiltration membrane. Because the water pressure distributes unevenly in the subassembly, the farther away from the water inlet, the lower the water pressure, the lower the water velocity and flow, the flow state is worse, the pollutant is very easy to attach on the membrane wire surface, and the membrane pollution is more serious, leads to the life-span shorter, and the subassembly is changed frequently very high, does not have the flushing pipeline moreover, need to unpack the filter core and carry out manual flushing, and the washing degree of difficulty is very big, leads to after-market cost extravagant.
Disclosure of Invention
Therefore, one of the purposes of the present application is to provide a water treatment system, a control method thereof, and a filter element structure, so as to solve the problems of short service life and high replacement frequency of the existing filter element.
In order to achieve the above purpose, on one hand, the present application adopts the following technical scheme:
a water treatment system comprising a first filter device comprising a first chamber, a second chamber and a third chamber which are independent of each other, each chamber being provided with a filter structure, the water treatment system being capable of forming a water making flow path and a flushing flow path, the water treatment system further comprising a switching device configured to enable switching of the first chamber and the second chamber into the water making flow path and the flushing flow path and switching of the third chamber into the water making flow path.
Preferably, the switching device is configured to switch the third chamber into a downstream side of the first chamber or the second chamber located on the water-making flow path.
Preferably, the first chamber is provided with a first water gap and a second water gap, one of the first water gap and the second water gap is communicated with the space at the upstream side of the filtering structure in the first chamber, the other one of the first water gap and the second water gap is communicated with the space at the downstream side of the filtering structure in the first chamber,
a third water gap and a fourth water gap are arranged on the second chamber, one of the third water gap and the fourth water gap is communicated with the space at the upstream side of the filtering structure in the second chamber, the other of the third water gap and the fourth water gap is communicated with the space at the downstream side of the filtering structure in the second chamber,
the third chamber is provided with a water inlet and a purified water outlet,
the water treatment system comprises a water inlet branch, a first waste discharge branch, a first purified water branch and a connecting branch, wherein a purified water outlet is communicated with the first purified water branch, a water inlet is communicated with a first port of the connecting branch, the switching device comprises a first switching unit and a second switching unit, the first switching unit is used for switching the water inlet branch and the first waste discharge branch between a first water gap and a third water gap, and the second switching unit is configured so that a second water gap is communicated with a second port of the connecting branch.
Preferably, the second switching unit is further configured to enable the second nozzle to communicate with the fourth nozzle.
Preferably, the water treatment system further comprises a flushing water branch, the second switching unit being further configured to switch communication between the second water port and the fourth water port of the connection branch and the flushing water branch.
Preferably, the water treatment system further comprises a second filtering device, wherein the outlet of the first purified water branch is communicated with the inlet of the second filtering device, the waste water port of the second filtering device is connected with a second waste discharge branch, and the flushing water branch is communicated with the second waste discharge branch; and/or the number of the groups of groups,
the water treatment system further comprises a water storage device, and the flushing water branch is communicated with the water storage device.
On the other hand, the application adopts the following technical scheme:
a control method of the water treatment system comprises the steps of providing a first water making mode, a second water making mode, a first flushing mode and a second flushing mode,
in the first water making mode, the first switching unit is controlled to communicate the water inlet branch with the first water gap, and the second switching unit is controlled to communicate the second water gap with the second port of the connecting branch;
in the first flushing mode, the first switching unit is controlled to communicate the first waste discharge branch with the third water gap, the water inlet branch is controlled to communicate the first water gap, and the second switching unit is controlled to communicate the second water gap with the fourth water gap;
in the second water making mode, the first switching unit is controlled to communicate the water inlet branch with the third water gap, and the second switching unit is controlled to communicate the fourth water gap with the second port of the connecting branch;
and in the second flushing mode, the first switching unit is controlled to communicate the first waste discharge branch with the first water gap, the water inlet branch with the third water gap, and the second switching unit is controlled to communicate the second water gap with the fourth water gap.
Preferably, the water treatment system has a first water making mode, a second water making mode, a first flushing mode, a second flushing mode,
in the first water making mode, the first switching unit is controlled to communicate the water inlet branch with the first water gap, and the second switching unit is controlled to communicate the second water gap with the second port of the connecting branch;
in the first flushing mode, the first switching unit is controlled to communicate the first waste discharge branch with the third water gap, and the second switching unit is controlled to communicate the fourth water gap with the flushing water branch;
in the second water making mode, the first switching unit is controlled to communicate the water inlet branch with the third water gap, and the second switching unit is controlled to communicate the fourth water gap with the second port of the connecting branch;
and in the second flushing mode, the first switching unit is controlled to communicate the first waste discharge branch with the first water gap, and the second switching unit is controlled to communicate the second water gap with the flushing water branch.
In yet another aspect, the present application employs the following technical scheme:
the first filtering device in the water treatment system is characterized by comprising a shell, wherein a separation structure is arranged inside the shell, the interior of the shell is separated into a first chamber, a second chamber and a third chamber by the separation structure, and each chamber is internally provided with a filtering structure.
Preferably, the shell comprises a filter flask with one end closed and the other end open and an end structure arranged at the open end of the filter flask, the separation structure comprises a first cylindrical structure with two ends open, one end of the first cylindrical structure is connected with the end structure, the other end of the first cylindrical structure is connected with the closed end of the filter flask, the end structure, the inner side surface of the first cylindrical structure and the closed end of the filter flask enclose to form the third chamber, and the outer side surface of the end structure and the closed end of the filter flask enclose to form the first chamber and the second chamber.
Preferably, the separation structure further comprises a separation plate, and the separation plate extends along the axial direction of the filter flask and is connected with the side wall of the filter flask and the outer side wall of the first cylindrical structure so as to divide a space formed by enclosing the end part structure, the outer side surface of the first cylindrical structure and the closed end of the filter flask into the first chamber and the second chamber which are mutually independent.
Preferably, the filter element structure further comprises a membrane shell sleeved between the first cylindrical structure and the filter flask, the filter structure is arranged in the membrane shell, the membrane shell comprises a second cylindrical structure with two open ends, one open end of the second cylindrical structure is connected with the end structure, and a space is reserved between the other open end and the closed end of the filter flask.
Preferably, the second cylindrical structure is provided with a water through hole; and/or the number of the groups of groups,
and the inner side wall and/or the outer side wall of the second cylindrical structure are/is provided with a convex and/or a concave structure.
Preferably, the projection and/or recess arrangement extends in a spiral direction.
Preferably, the filter element structure comprises a water inlet pipe, the water inlet pipe is communicated with a water inlet of the third cavity, a part of the water inlet pipe is inserted into the third cavity, a plurality of water outlet holes are formed in the water inlet pipe, and the water outlet holes are distributed along the axial direction and/or the radial direction of the water inlet pipe.
Preferably, the first water gap, the second water gap, the third water gap, the fourth water gap, the water inlet and the purified water outlet are all arranged on the end structure.
Preferably, the filter structure disposed within the first chamber comprises an ultrafiltration structure; and/or the number of the groups of groups,
the filtering structure disposed within the second chamber comprises an ultrafiltration structure; and/or the number of the groups of groups,
the filter structure disposed within the third chamber includes a carbon filter element.
According to the water treatment system, the control method and the filter element structure thereof, the first cavity and the second cavity in the first filter device are switched into the water making flow path and the flushing flow path through the switching device, when the first cavity is used as the water making cavity, the second cavity can be used as the flushing cavity, and the water making cavity and the flushing cavity can be interchanged, so that the water treatment system is simple and reasonable in structure and easy to clean, manual flushing for disassembling the first filter device is not needed, the cleaning difficulty is reduced, the subsequent maintenance cost is saved, the service life of the first filter device is prolonged, the service life of the water treatment system is prolonged, and the use experience of a user is improved.
Drawings
The above and other objects, features and advantages of the present application will become more apparent from the following description of embodiments of the present application with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view showing the construction of a water treatment system according to a first embodiment of the present application;
FIG. 2 is a schematic view showing the construction of a water treatment system according to a second embodiment of the present application;
FIG. 3 is a schematic view showing the construction of a water treatment system according to a third embodiment of the present application;
FIG. 4 shows a partial view of the application of FIG. 3;
FIG. 5 shows a longitudinal cross-sectional view of the cartridge structure provided by the present application;
fig. 6 shows a cross-sectional view of a cartridge structure provided by the present application.
In the drawing the view of the figure,
1. a first waste discharge branch; 2. a second waste discharge branch; 21. a waste water ratio electromagnetic valve; 3. a rinse water branch; 4. a user water taking branch; 41. a gooseneck tap; 5. a water storage branch; 51. a water storage device; 6. a first purified water branch; 61. a pressure stabilizing pump; 7. a second purified water branch; 71. a non-return valve; 72. a third filtering device; 8. a water inlet branch; 9. a connection branch;
10. a first filtering device; 10-1, a first chamber; 10-2, a second chamber; 10-3, a shell; 10-31, separating structure; 10-311, a first cylindrical structure; 10-312, separating plate; 10-32, a filter flask; 10-33, end structure; 10-331, a first nozzle; 10-332, a second nozzle; 10-333, a third nozzle; 10-334, a fourth nozzle; 10-335, water inlet; 10-336, purified water outlet; 10-4, a filtering structure; 10-5, a membrane shell; 10-51, a second cylindrical structure; 10-511, water passing through holes; 10-52 parts of ultrafiltration membrane wires; 10-53 parts of sealing heads; 10-6, a third chamber; 10-61, a carbon filter element; 10-7, a water inlet pipe; 10-71, connecting pipes; 10-72, a central tube; 10-721, water outlet holes;
20. a second filtering device;
30. a switching device; 30-1, a first switching unit; 30-2, a second switching unit.
Detailed Description
The present application is described below based on examples, but the present application is not limited to only these examples. Well-known methods, procedures, flows, and components have not been described in detail so as not to obscure the nature of the application.
Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The application provides a filter element structure and a water treatment system using the same, and referring to fig. 1, the water treatment system is applied to a water purifier, for example, and comprises a first filter device 10, wherein the first filter device 10 comprises a first chamber 10-1, a second chamber 10-2 and a third chamber 10-6 which are independent from each other, a filter structure 10-4 is arranged in each chamber, the water treatment system can form a water making flow path and a flushing flow path, the water treatment system further comprises a switching device 30, and the switching device 30 is configured to switch the first chamber 10-1 and the second chamber 10-2 into the water making flow path and the flushing flow path, and switch the third chamber 10-6 into the water making flow path. The switching device 30 enables the first chamber 10-1 and the second chamber 10-2 to be switched into the water making flow path and the flushing flow path, so that flushing of the first chamber 10-1 and the second chamber 10-2 can be realized, the structure is simple and reasonable, cleaning is easy, manual flushing is not needed to be carried out on the disassembly of the first filtering device 10, the cleaning difficulty is reduced, the subsequent maintenance cost is saved, the service life of the first filtering device 10 is prolonged, the service life of the water treatment system is prolonged, the use experience of a user is improved, meanwhile, the first filtering device 10 is further provided with the third chamber 10-6, the filtering effect of the first filtering device 10 is further improved, the water purifying effect of the first filtering device 10 is improved, and the water quality of water for the user is improved.
Referring to fig. 5 and 6, the filter cartridge structure according to the present application constitutes the first filtering device 10, in a preferred embodiment, the filter cartridge structure includes a housing 10-3, a partition structure 10-31 is disposed inside the housing 10-3, the partition structure 10-31 partitions the interior of the housing 10-3 into the first chamber 10-1, the second chamber 10-2 and the third chamber 10-6, each chamber is provided with a filtering structure 10-4, the housing 10-3 includes a filter flask 10-32 having one end closed and the other end open, and an end structure 10-33 disposed at the open end of the filter flask 10-32, the end structure 10-33 is provided with a first water gap 10-331, a second water gap 10-332, a third water gap 10-333, a fourth water gap 10-334, a water inlet 10-335 and a purified water outlet 10-336, so that the overall structure of the first filtering device 10 is more compact, the structure is reasonable in layout, the partition structure 10-31 includes a first tubular structure 10-311 having two ends open, for example, a first tubular structure 10-311 is a tubular structure 10-311, a tubular structure 10-311 is connected to the first tubular structure 10-32, the tubular structure 10-33 is connected to the first tubular structure 10-32, the first tubular structure 10-32 is a tubular structure 10-32, and the other end structure 10-33 is connected to the end structure 10-32, and the end structure is connected to the end structure 10-32 The closed end of the filter flask 10-32 encloses the first chamber 10-1 and the second chamber 10-2, the partition structure 10-31 further comprises a partition plate 10-312, and the partition plate 10-312 extends along the axial direction of the filter flask 10-32 and is connected with the side wall of the filter flask 10-32 and the outer side wall of the first tubular structure 10-311, so as to divide the space formed by enclosing the end structure 10-33, the outer side surface of the first tubular structure 10-311 and the closed end of the filter flask 10-32 into the first chamber 10-1 and the second chamber 10-2 which are independent of each other, so as to ensure the mutual independence of the first chamber 10-1, the second chamber 10-2 and the third chamber 10-6.
Preferably, referring to fig. 5 and 6, the filter cartridge structure further comprises a membrane housing 10-5 sleeved between the first cylindrical structure 10-311 and the filter flask 10-32, a part of the membrane housing 10-5 is located in the first chamber 10-1, a part of the membrane housing 10-4 is located in the second chamber 10-2, the filter structures 10-4 in the first chamber 10-1 and the second chamber 10-2 are disposed in the membrane housing 10-5, preferably, the filter structures 10-4 are ultrafiltration structures, including ultrafiltration membrane wires 10-52, one ends of the ultrafiltration membrane wires 10-52 form a seal head 10-53 by casting or other fixing means, the first cylindrical structure 10-311 passes through the seal head 10-53 to divide the membrane housing 10-5 and the filter structures 10-4 into two parts, wherein a part of the filter structures 10-4 are located in the first chamber 10-1, the other part is located in the second chamber 10-2 to realize a filtration system of the first chamber 10-1 and the second chamber 10-2 independent from each other, the membrane shell 10-5 comprises a second tubular structure 10-51 with two open ends, the second tubular structure 10-51 is a tubular structure, a square tubular structure or a polygonal tubular structure, etc., one open end of the second tubular structure 10-51 is connected with the end structure 10-33, a space is arranged between the other open end and the closed end of the filter flask 10-32 to ensure the circulation of water flow inside and outside the second tubular structure 10-51, more preferably, the second tubular structure 10-51 is provided with a water through hole 10-511 to better ensure the circulation of water flow inside and outside the second tubular structure 10-51, and, be provided with protruding and/or recess structure on the inside wall and/or the lateral wall of second tubular structure 10-51, protruding and/or recess structure extends along the helix direction, can increase the disturbance state of rivers in second tubular structure 10-51, improves the intensity degree that rivers erode milipore filter silk 10-52, improves the cleaning performance, reduces the pollution degree of milipore filter silk 10-52.
Referring to fig. 5 and 6, the filter cartridge structure comprises a water inlet pipe 10-7, the water inlet pipe 10-7 comprises a connecting pipe 10-71 communicated with a water inlet 10-335 on an end structure 10-33, the connecting mode of the connecting pipe 10-71 and the end structure 10-33 comprises a snap connection, a screw connection, a sealing ring connection, an adhesive connection or a welding connection, and the like, the water inlet pipe 10-7 further comprises a central pipe 10-72 inserted into the third chamber 10-6, the central pipe 10-72 is provided with a plurality of water outlet holes 10-721, the plurality of water outlet holes 10-721 are distributed along the axial direction and/or the radial direction of the central pipe 10-72 so as to ensure that water flows better in the third chamber 10-6 to finish further purification treatment, the filter structure 10-4 in the first chamber 10-1 preferably comprises a carbon filter cartridge 10-61, such as activated carbon or a carbon rod, etc., the central tube 10-72 being located at a radially central position of the carbon filter cartridge 10-61, the central tube 10-72 dividing the carbon filter cartridge 10-61 substantially into two parts, one part being located close to the first chamber 10-1 and the other part being located in the second chamber 10-2, to ensure a better purification of the water entering the third chamber 10-6, to ensure a smooth flow of water between the central tube 10-72 and the carbon filter cartridge 10-61, since only one purified water outlet 10-336 is provided in the third chamber 10-6, said purified water outlet being located either on the side close to the first chamber 10-1 or on the side close to the second chamber 10-2, to ensure a better water outlet, a certain interval is reserved between one end of the carbon filter element 10-61, which is axially close to the closed end of the filter flask 10-32, and the closed end of the filter flask 10-32, so as to ensure that purified water purified by the carbon filter element 10-61 can smoothly flow out of the third chamber 10-6 from the purified water outlet 10-336.
Preferably, in the water treatment system of the present application, referring to fig. 1 and 6, the switching device 30 is configured to connect the third chamber 10-6 to the downstream side of the first chamber 10-1 or the second chamber 10-2 located on the water making flow path, that is, the water entering the third chamber 10-6 is the water purified by the first chamber 10-1 or the second chamber 10-2, so that damage to the carbon filter 10-61 in the third chamber 10-6 is reduced, and the service life of the carbon filter 10-61 is prolonged. In summary, the first chamber 10-1 and the second chamber 10-2 are alternately switched to be connected to the flushing flow path, so that the first chamber 10-1 and the second chamber 10-2 are alternately cleaned, the service lives of the first chamber 10-1 and the second chamber 10-2 are prolonged, then water flows through the first chamber 10-1 or the second chamber 10-2 for purification treatment, then enters the third chamber 10-6 for purification treatment, and the service life of the third chamber 10-6 is prolonged, so that the overall service life of the first filtering device 10 is prolonged, and the cost is reduced.
Referring to fig. 1 and 6, a first water gap 10-331 and a second water gap 10-332 are provided in the first chamber 10-1, one of the first water gap 10-331 and the second water gap 10-332 is communicated with an upstream side space of the filtering structure 10-4 in the first chamber 10-1, and the other is communicated with a downstream side space of the filtering structure 10-4 in the first chamber 10-1, so that water flow can enter the first chamber 10-1 from the first water gap 10-331 and then flow out of the first chamber 10-1 from the second water gap 10-332, or flow out of the first chamber 10-1 from the second water gap 10-332 and flow out of the first chamber 10-1 from the first water gap 10-331, thereby realizing the effect of filtering water flowing through the first chamber 10-1 to purify the water; the second chamber 10-2 is provided with a third water gap 10-333 and a fourth water gap 10-334, one of the third water gap 10-333 and the fourth water gap 10-334 is communicated with the space on the upstream side of the filtering structure 10-4 in the second chamber 10-2, and the other is communicated with the space on the downstream side of the filtering structure 10-4 in the second chamber 10-2, so that the effect of filtering water flowing through the second chamber 10-2 to purify the water is realized; the third chamber 10-6 is provided with a water inlet 10-335 and a purified water outlet 10-336, and after water flows out of the first chamber 10-1 or the second chamber 10-2, the water enters the third chamber 10-6 through the water inlet 10-335 and then flows out of the third chamber 10-6 from the purified water outlet 10-336, so that further purification is completed.
As shown in fig. 6, an external pressure type filter structure may be formed in the first chamber 10-1 and the second chamber 10-2, or an internal pressure type filter structure may be formed. When the external pressure type filtering structure is formed in the first chamber 10-1 and the second chamber 10-2, the first water gap 10-331 is an inlet of the first chamber 10-1, the second water gap 10-332 is an outlet of the first chamber 10-1, the third water gap 10-333 is an inlet of the second chamber 10-2, and the fourth water gap 10-334 is an outlet of the second chamber 10-2. When the internal pressure type filtering structure is formed in the first chamber 10-1 and the second chamber 10-2, the first water gap 10-331 and the third water gap 10-333 are outlets, and the second water gap 10-332 and the fourth water gap 10-334 are inlets
Referring to fig. 1 and 6, the water treatment system includes a water inlet branch 8, a first waste branch 1, a first purified water branch 6, and a connection branch 9, the purified water outlet 10-336 communicates with the first purified water branch 6, the water inlet 10-335 communicates with a first port of the connection branch 9, the switching device 30 includes a first switching unit 30-1 and a second switching unit 30-2, the first switching unit 30-1 is used to switch the water inlet branch 8 and the first waste branch 1 between the first water port 10-331 and the third water port 10-333, the second switching unit 30-2 is configured to enable the second water port 10-332 to communicate with a second port of the connection branch 9, and the second water port 10-332 to communicate with the fourth water port 10-334, such that the water treatment system has a first water making mode, a second water making mode, a first flushing mode, and a second flushing mode.
In the first water making mode, the first switching unit 30-1 is controlled to communicate the water inlet branch 8 with the first water port 10-331, the second switching unit 30-2 is controlled to communicate the second water port 10-332 with the second port of the connecting branch 9, at the first filtering device 10, water flow in the water treatment system enters the first chamber 10-1 from the first water port 10-331 through the water inlet branch 8, then flows out from the second water port 10-332, finishes the first purifying treatment of the water, enters the connecting branch 9 from the second port of the connecting branch 9, flows out from the first port, then enters the third chamber 10-6 through the water inlet 10-335, flows out from the purified water outlet 10-336, finishes the second purifying treatment of the water, and then enters the first purified water branch 6.
In the first flushing mode, the first switching unit 30-1 is controlled to communicate the first waste discharge branch 1 with the third water gap 10-333, the water inlet branch 8 is controlled to communicate the second water gap 10-332 with the fourth water gap 10-334, and at the first filtering device 10, water flow in the water treatment system enters the first chamber 10-1 from the first water gap 10-331 through the water inlet branch 8, then flows out from the second water gap 10-332, then enters the second chamber 10-2 from the fourth water gap 10-334, then flows out from the third water gap 10-333, and finally flows out of the water treatment system through the first waste discharge branch 1, so that flushing of the second chamber 10-2 is completed.
In the second water making mode, the first switching unit 30-1 is controlled to communicate the water inlet branch 8 with the third water port 10-333, the second switching unit 30-2 is controlled to communicate the fourth water port 10-334 with the second port of the connecting branch 9, at the first filtering device 10, water flow in the water treatment system enters the second chamber 10-2 from the third water port 10-333 through the water inlet branch 8, then flows out from the fourth water port 10-334, finishes the first purifying treatment of the water, enters the connecting branch 9 from the second port of the connecting branch 9, then flows out from the first port, enters the third chamber 10-6 through the water inlet 10-335, flows out from the purified water outlet 10-336, finishes the second purifying treatment of the water, and then flows into the first purified water branch 6.
In the second flushing mode, the first switching unit 30-1 is controlled to communicate the first waste discharge branch 1 with the first water gap 10-331, the water inlet branch 8 with the third water gap 10-333, the second switching unit 30-2 is controlled to communicate the second water gap 10-332 with the fourth water gap 10-334, at the first filtering device 10, water flow in the water treatment system enters the second chamber 10-2 from the third water gap 10-333 through the water inlet branch 8, then flows out from the fourth water gap 10-334, then flows into the second water gap 10-332 from the fourth water gap 10-334 through the second switching device 30, enters the first chamber 10-1, then flows out from the first water gap 10-331, and finally flows out of the water treatment system through the first waste discharge branch 1, so that flushing of the first chamber 10-1 is completed.
The first water making mode, the first flushing mode, the second water making mode and the second flushing mode of the water treatment system are sequentially and circularly carried out, so that the first chamber 10-1 and the second chamber 10-2 are alternately flushed, pollutants attached to the surfaces of the ultrafiltration membrane filaments 10-52 are flushed, and the service life of the ultrafiltration membrane structure is prolonged.
In a preferred embodiment, referring to fig. 2 and 6, the water treatment system further comprises a flushing water branch 3 and a water storage means 51 in communication with the flushing water branch 3, such as a pressurized water bucket or a pressurized water bag, etc., which water storage means 51 may be used for providing a user with temporary water, and for providing a first chamber 10-1 and a second chamber 10-2 with flushing water for flushing the first chamber 10-1 and the second chamber 10-2, the second switching unit 30-2 being further configured to enable switching of the communication between the second water gap 10-332 and the fourth water gap 10-334 of the connection branch 9 and the flushing water branch 3.
In a first water making mode, the purified water obtained by filtering through the first chamber 10-1 is partially used by a user, and the other part is stored in the water storage device 51, and in a first flushing mode, the first switching unit 30-1 is controlled to communicate the first waste discharge branch 1 with the third water gap 10-333, the second switching unit 30-2 is controlled to communicate the fourth water gap 10-334 with the flushing water branch 3, flushing water is provided for flushing the second chamber 10-2 through the water storage device 51, and the second chamber 10-2 is flushed; in the second water making mode, the second chamber 10-2 is filtered to obtain purified water, one part of the purified water is used by a user, the other part of the purified water is stored in the water storage device 51, in the second flushing mode, the first switching unit 30-1 is controlled to communicate the first waste discharging branch 1 with the first water gap 10-331, the second switching unit 30-2 is controlled to communicate the second water gap 10-332 with the flushing water branch 3, flushing water is provided for flushing the first chamber 10-1 through the water storage device 51, and the first chamber 10-1 is flushed. It should be noted that in the preferred embodiment, since the second chamber 10-2 is not required to be supplied with the flushing water through the connection branch 9 in the first flushing mode, the second water gap 10-332 and the second port of the connection branch 9 are kept in communication through the second switching unit 30-2 at the same time, the first flushing mode and the first water making mode can be operated simultaneously, and similarly, the second flushing mode and the second water making mode can be operated simultaneously or not simultaneously, and when the first chamber 10-1 or the second chamber 10-2 needs to be flushed, the water treatment system can simultaneously make water, so that the water consumption of a user is not affected, and the requirements of the user can be better satisfied.
More preferably, referring to fig. 2 and 6, the water treatment system further comprises a second purified water branch 7, a water storage branch 5 and a user water intake branch 4, the first purified water branch 6 is provided with a pressure stabilizing device, such as a pressure stabilizing pump 61, to ensure the stability of the water pressure of the water treatment system, and further ensure that a sufficient amount of user water is generated, so as to improve the user use experience, the outlet of the first purified water branch 6 is communicated with the inlet of the second filtering device 20, the waste water port of the second filtering device 20 is communicated with the second waste water discharge branch 2 for discharging the waste water generated after passing through the second filtering device 20, and a waste water ratio electromagnetic valve 21 is arranged on the second waste water discharge branch 2, and the waste water ratio electromagnetic valve 21 is preferably an adjustable waste water ratio electromagnetic valve to better control the waste water ratio at the second waste water discharge branch 2, and further ensure the waste water ratio of the water treatment system. The water purifying port of the second filtering device 20 is communicated with the second purified water branch 7, a check valve 71 is arranged at a position, close to the second filtering device 20, of the second purified water branch 7, in the first water making mode, a water storage branch 5 is arranged behind the check valve 71 on the second purified water branch 7 in the water flow direction, the check valve 71 can effectively prevent water on the second purified water branch 7 from flowing backwards into the second filtering device 20, normal operation of the water treatment system is ensured, a water storage device 51 is arranged on the water storage branch 5, a third filtering device 72 is arranged on the second purified water branch 7 and used for further treating water, an outlet of the second purified water branch 7 is communicated with a user water taking branch 4, and a water taking tap, such as a gooseneck tap 41, is arranged on the user water taking branch 4, so that water taking of a user is facilitated. In addition, the inlet of the flushing water branch 3 in the water treatment system is communicated with the water storage branch 5, and the flushing water branch 3 can use water in the water storage device 51 as flushing water, or the water in the second purified water branch 7 can directly enter the flushing water branch 3 to serve as flushing water after entering the water storage branch 5, so that when the water storage device 51 is arranged, the first water making mode or the second water making mode can be operated simultaneously or not simultaneously in the first flushing mode or the second flushing mode.
In an alternative embodiment, referring to fig. 3 and 6, the water treatment system further includes a second filtering device 20, where the second filtering device 20 includes, for example, a reverse osmosis filter element, and further purifies the purified water obtained after the treatment of the first filtering device 10, so that the user obtains water with better quality. The outlet of the first purified water branch 6 is communicated with the inlet of the second filtering device 20, the waste water port of the second filtering device 20 is connected with the second waste discharge branch 2, the flushing water branch 3 is communicated with the second waste discharge branch 2, the waste water generated by the second filtering device 20 is utilized to replace the purified water of the water storage device 51, flushing water is provided for the first flushing mode and the second flushing mode, the waste water is reasonably utilized, the waste of the purified water is avoided, the first chamber 10-1 and the second chamber 10-2 are flushed, and the water is saved.
At this time, in the first flushing mode, the first switching unit 30-1 is controlled to communicate the first waste discharge branch 1 with the third water gap 10-333, the second switching unit 30-2 is controlled to communicate the fourth water gap 10-334 with the flushing water branch 3, raw water is filtered by the first filtering device 10 to obtain purified water, the purified water enters the second filtering device 20 through the first purified water branch 6 for further treatment, the obtained secondary purified water is used for a user to use, the waste water generated by the second filtering device 20 enters the flushing water branch 3 through the second waste discharge branch 2, the flushing water used as flushing water for flushing the second chamber 10-2 enters the second chamber 10-2 through the fourth water gap 10-334, the flushing water is discharged from the second chamber 10-2 through the third water gap 10-333, and then the flushing water is discharged through the first waste discharge branch 1 to finish flushing the second chamber 10-2. It should be noted that, in the first flushing mode, the first water making mode is also in an operation state so as to ensure water consumption of the user. The basic principle of the second flushing mode is the same as that of the first flushing mode, and the description is omitted. It should be noted that this alternative embodiment differs from the preferred embodiment described above in that when the first flushing mode is operated, the first water making mode needs to be operated simultaneously, through which the water supply to the second filter means 20 is provided.
It is easy to understand by those skilled in the art that the above preferred embodiments can be freely combined and overlapped without conflict.
It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the application, are intended to be included within the scope of the appended claims.
Claims (13)
1. The water treatment system is characterized by comprising a first filtering device, specifically comprising a shell, wherein a separation structure is arranged in the shell, the separation structure divides the interior of the shell into a first chamber, a second chamber and a third chamber, and a filtering structure is arranged in each chamber;
the shell comprises a filter bottle with one end being closed and the other end being open, and an end structure arranged at the open end of the filter bottle, the separation structure comprises a first cylindrical structure with two ends being open, one end of the first cylindrical structure is connected with the end structure, the other end of the first cylindrical structure is connected with the closed end of the filter bottle, the end structure, the inner side surface of the first cylindrical structure and the closed end of the filter bottle are enclosed to form a third chamber, and the end structure, the outer side surface of the first cylindrical structure and the closed end of the filter bottle are enclosed to form a first chamber and a second chamber;
the separation structure further comprises a separation plate, wherein the separation plate extends along the axial direction of the filter flask and is connected with the side wall of the filter flask and the outer side wall of the first cylindrical structure so as to divide a space formed by enclosing the end part structure, the outer side surface of the first cylindrical structure and the closed end of the filter flask into a first chamber and a second chamber which are mutually independent;
the first filtering device comprises a first chamber, a second chamber and a third chamber which are mutually independent, the water treatment system can form a water making flow path and a flushing flow path, and the water treatment system further comprises a switching device which is configured to switch the first chamber and the second chamber into the water making flow path and the flushing flow path and switch the third chamber into the water making flow path;
a first water gap and a second water gap are arranged on the first chamber, one of the first water gap and the second water gap is communicated with the space at the upstream side of the filtering structure in the first chamber, the other one of the first water gap and the second water gap is communicated with the space at the downstream side of the filtering structure in the first chamber,
a third water gap and a fourth water gap are arranged on the second chamber, one of the third water gap and the fourth water gap is communicated with the space at the upstream side of the filtering structure in the second chamber, the other of the third water gap and the fourth water gap is communicated with the space at the downstream side of the filtering structure in the second chamber,
the third chamber is provided with a water inlet and a purified water outlet,
the water treatment system comprises a water inlet branch, a first waste discharge branch, a first purified water branch and a connecting branch, wherein a purified water outlet is communicated with the first purified water branch, a water inlet is communicated with a first port of the connecting branch, the switching device comprises a first switching unit and a second switching unit, the first switching unit is used for switching the water inlet branch and the first waste discharge branch between a first water gap and a third water gap, and the second switching unit is configured so that a second water gap is communicated with a second port of the connecting branch.
2. The water treatment system of claim 1, wherein the second switching unit is further configured to enable the second water port to communicate with the fourth water port.
3. The water treatment system of claim 1, further comprising a rinse water leg, the second switching unit further configured to switch communication between the second water port and the fourth water port of the connection leg and the rinse water leg.
4. A water treatment system as claimed in claim 3, further comprising a second filter means, the outlet of the first purified water leg being in communication with the inlet of the second filter means, the waste water port of the second filter means being connected to a second waste water leg, the flush water leg being in communication with the second waste water leg; and/or the number of the groups of groups,
the water treatment system further comprises a water storage device, and the flushing water branch is communicated with the water storage device.
5. A control method of a water treatment system according to claim 2, wherein the water treatment system has a first water making mode, a second water making mode, a first flushing mode, a second flushing mode,
in the first water making mode, the first switching unit is controlled to communicate the water inlet branch with the first water gap, and the second switching unit is controlled to communicate the second water gap with the second port of the connecting branch;
in the first flushing mode, the first switching unit is controlled to communicate the first waste discharge branch with the third water gap, the water inlet branch is controlled to communicate the first water gap, and the second switching unit is controlled to communicate the second water gap with the fourth water gap;
in the second water making mode, the first switching unit is controlled to communicate the water inlet branch with the third water gap, and the second switching unit is controlled to communicate the fourth water gap with the second port of the connecting branch;
and in the second flushing mode, the first switching unit is controlled to communicate the first waste discharge branch with the first water gap, the water inlet branch with the third water gap, and the second switching unit is controlled to communicate the second water gap with the fourth water gap.
6. The method for controlling a water treatment system according to claim 3 or 4, wherein the water treatment system has a first water making mode, a second water making mode, a first flushing mode, a second flushing mode,
in the first water making mode, the first switching unit is controlled to communicate the water inlet branch with the first water gap, and the second switching unit is controlled to communicate the second water gap with the second port of the connecting branch;
in the first flushing mode, the first switching unit is controlled to communicate the first waste discharge branch with the third water gap, and the second switching unit is controlled to communicate the fourth water gap with the flushing water branch;
in the second water making mode, the first switching unit is controlled to communicate the water inlet branch with the third water gap, and the second switching unit is controlled to communicate the fourth water gap with the second port of the connecting branch;
and in the second flushing mode, the first switching unit is controlled to communicate the first waste discharge branch with the first water gap, and the second switching unit is controlled to communicate the second water gap with the flushing water branch.
7. A filter cartridge arrangement for forming a first filter arrangement in a water treatment system according to any one of claims 1 to 3, comprising a housing having a partition structure disposed therein, the partition structure dividing the housing interior into the first, second and third chambers, each chamber having a filter structure disposed therein;
the shell comprises a filter bottle with one end being closed and the other end being open, and an end structure arranged at the open end of the filter bottle, the separation structure comprises a first cylindrical structure with two ends being open, one end of the first cylindrical structure is connected with the end structure, the other end of the first cylindrical structure is connected with the closed end of the filter bottle, the end structure, the inner side surface of the first cylindrical structure and the closed end of the filter bottle are enclosed to form a third chamber, and the end structure, the outer side surface of the first cylindrical structure and the closed end of the filter bottle are enclosed to form a first chamber and a second chamber;
the separation structure further comprises a separation plate, wherein the separation plate extends along the axial direction of the filter flask and is connected with the side wall of the filter flask and the outer side wall of the first cylindrical structure, so that a space formed by enclosing the end part structure, the outer side surface of the first cylindrical structure and the closed end of the filter flask is divided into a first chamber and a second chamber which are mutually independent.
8. The filter cartridge structure of claim 7, further comprising a membrane shell sleeved between the first cylindrical structure and the filter flask, the filter structure being disposed in the membrane shell, the membrane shell comprising a second cylindrical structure having two open ends, one open end of the second cylindrical structure being connected to the end structure, and the other open end being spaced from the closed end of the filter flask.
9. The filter element structure according to claim 8, wherein the second cylindrical structure is provided with a water passing through hole; and/or the number of the groups of groups,
and the inner side wall and/or the outer side wall of the second cylindrical structure are/is provided with a convex and/or a concave structure.
10. The filter cartridge structure of claim 9, wherein the projection and/or recess arrangement extends in a helical direction.
11. The filter element structure according to claim 7, wherein the filter element structure comprises a water inlet pipe, the water inlet pipe is communicated with the water inlet of the third chamber, a part of the water inlet pipe is inserted into the third chamber, a plurality of water outlet holes are formed in the water inlet pipe, and the water outlet holes are distributed along the axial direction and/or the radial direction of the water inlet pipe.
12. A filter cartridge arrangement according to any one of claims 7 to 11, wherein the filter cartridge arrangement constitutes a first filter arrangement in a water treatment system according to any one of claims 1 to 3, the first water port, the second water port, the third water port, the fourth water port, the water inlet and the purified water outlet being all provided on the end arrangement.
13. The filter cartridge arrangement of any one of claims 7 to 11, wherein the filter arrangement disposed within the first chamber comprises an ultrafiltration arrangement; and/or the number of the groups of groups,
the filtering structure disposed within the second chamber comprises an ultrafiltration structure; and/or the number of the groups of groups,
the filter structure disposed within the third chamber includes a carbon filter element.
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| CN201810996200.5A CN109231361B (en) | 2018-08-29 | 2018-08-29 | Water treatment system, control method thereof and filter element structure |
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| CN206950737U (en) * | 2017-07-12 | 2018-02-02 | 碧克仑(北京)净水科技有限公司 | Nested type composite filter element and water purifier |
| CN209128167U (en) * | 2018-08-29 | 2019-07-19 | 珠海格力电器股份有限公司 | water treatment system and filter element structure |
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| CA2343402A1 (en) * | 1998-09-09 | 2000-03-16 | Pall Corporation | Fluid treatment elements, methods for cleaning fluid treatment elements and methods for treating fluids |
| JP2003024752A (en) * | 2001-07-18 | 2003-01-28 | Stem:Kk | Filtering and separating membrane cartridge and filer device using the same |
| CN107098519A (en) * | 2017-05-23 | 2017-08-29 | 中山市柠檬环境科技有限公司 | A kind of automatic reverse flushing water purifier |
| CN206950737U (en) * | 2017-07-12 | 2018-02-02 | 碧克仑(北京)净水科技有限公司 | Nested type composite filter element and water purifier |
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