CN111003767A - Water filtering and purifying system with water flows flowing in opposite directions and water purifier - Google Patents
Water filtering and purifying system with water flows flowing in opposite directions and water purifier Download PDFInfo
- Publication number
- CN111003767A CN111003767A CN201911420253.3A CN201911420253A CN111003767A CN 111003767 A CN111003767 A CN 111003767A CN 201911420253 A CN201911420253 A CN 201911420253A CN 111003767 A CN111003767 A CN 111003767A
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- purification system
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- waterway
- pure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 418
- 238000001914 filtration Methods 0.000 title claims abstract description 61
- 238000000746 purification Methods 0.000 claims abstract description 45
- 239000012528 membrane Substances 0.000 claims description 36
- 239000003011 anion exchange membrane Substances 0.000 claims description 30
- 238000005341 cation exchange Methods 0.000 claims description 30
- 238000010612 desalination reaction Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 10
- 239000003014 ion exchange membrane Substances 0.000 abstract description 6
- 150000002500 ions Chemical class 0.000 description 41
- 150000003839 salts Chemical class 0.000 description 41
- -1 salt ion Chemical class 0.000 description 13
- 238000001223 reverse osmosis Methods 0.000 description 9
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000011045 prefiltration Methods 0.000 description 3
- 230000037452 priming Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000002366 mineral element Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- C02F1/46—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
Abstract
The utility model provides a rivers are filtering purification system and water purifier that flow in opposite directions, the water purifier carries out the desalination through the filtering purification system that flows in opposite directions of rivers and filters, is provided with many water routes in filtering purification system's the EDR unit, and the rivers opposite direction in adjacent water route, the water route includes dense water route and pure water route, and the dense water route is adjacent with the pure water route. The water flow direction of the concentrated water waterway is parallel to the water flow direction of the pure water waterway and opposite to the water flow direction, the outlet of the concentrated water waterway is close to the water outlet of the pure water waterway, and the outlet of the pure water waterway is close to the water outlet of the concentrated water waterway. The rivers opposite direction through the water route of different concentrations can reduce the pressure differential to ion exchange membrane both sides, improves the desalination filter effect of EDR unit to salt ion, reduces the change frequency of EDR unit, prolongs the life of water purifier.
Description
Technical Field
The invention relates to the technical field of water purifiers, in particular to a water filtering and purifying system with water flows flowing oppositely and a water purifier.
Background
Reverse osmosis water purifiers mostly adopt reverse osmosis filter elements for water purification operation, and the reverse osmosis filter elements are provided with reverse osmosis membranes. When raw water enters the reverse osmosis water purifier, certain pressure is applied to the water to enable water molecules and ionic mineral elements in the raw water to pass through the reverse osmosis membrane, and macromolecular inorganic salts in the raw water comprise heavy metal ions, organic matters, bacteria, viruses and the like which cannot pass through the reverse osmosis membrane with small membrane pores, so that the water purifying effect is realized. The water quality of produced water of the existing reverse osmosis membrane water purifier can not be adjusted, after the reverse osmosis membrane works for a certain time, the proportion of the produced pure water and concentrated water is increased, and the water quality is deteriorated due to the mode of carrying out desalination and water purification through the pressure difference between water flows with different concentrations.
Therefore, it is necessary to provide a water filtration and purification system and a water purifier with opposite flowing water streams to overcome the deficiencies of the prior art.
Disclosure of Invention
The invention aims to provide a water filtering and purifying system with water flows flowing in opposite directions.
The object of the invention is achieved by the following technical measures.
The utility model provides a rivers are filtering purification system who flows in opposite directions, is provided with many water routes in its EDR unit, and the rivers opposite direction in adjacent water route, the water route includes dense water route and pure water route, and the dense water route is adjacent with the pure water route. The water flow direction of the concentrated water waterway is parallel to the water flow direction of the pure water waterway and opposite to the water flow direction, the outlet of the concentrated water waterway is close to the water outlet of the pure water waterway, and the outlet of the pure water waterway is close to the water outlet of the concentrated water waterway.
Preferably, each water path is comprised of a set of anion exchange membranes and a set of cation exchange membranes. Salt positive ions carried in raw water flowing through the water channels are adsorbed to adjacent water channels by the cation exchange membrane, salt negative ions carried in the raw water are adsorbed to adjacent water channels by the anion exchange membrane, the water channels with more salt positive ions and salt negative ions become concentrated water channels, the water channels with less salt positive ions and salt negative ions become pure water channels, and the flow directions of the concentrated water channels and the pure water channels are opposite.
Preferably, the anion exchange membranes and the cation exchange membranes are arranged in a staggered manner, and can adsorb salt positive ions and salt negative ions to raw water in the same water path, so that the raw water is filtered.
Preferably, the multiple groups of water paths are arranged in sequence and equally, raw water enters from the water paths which are separated from each other, and water inlets of the adjacent water paths are opposite.
Preferably, the plurality of sets of water paths are arranged unequally.
Preferably, the filtration water purification system is further provided with a positive plate, and the positive plate and the anion exchange membrane jointly form a concentrated water channel. The positive plate can be electrified to adsorb salt negative ions in raw water.
Preferably, the filtration water purification system is further provided with a negative plate, and the negative plate and the cation exchange membrane jointly form a concentrated water channel. The negative plate can be electrified to adsorb salt positive ions in raw water.
Preferably, the plurality of sets of water paths are assembled between the positive and negative plates.
Preferably, the number of the water paths is 2-10.
When filtering water purification system and getting into the water purification operating mode, positive plate and the negative plate circular telegram to the EDR unit, the raw water in adjacent water route flows in from opposite direction respectively, under the effect of positive plate and negative plate, salt positive ion in the pure water route passes through during cation exchange membrane gets into adjacent dense water route, salt negative ion in the pure water route passes through anion exchange membrane and gets into in the adjacent pure water route, the rivers direction in dense water route is opposite with the rivers direction in pure water route, dense water in the dense water route is discharged from the dense water export of the entry one end in pure water route, pure water in the pure water route is discharged from the pure water delivery port of the entry one end in dense water. The water flows of the pure water waterway and the concentrated water waterway flow in opposite directions, so that the pressure difference of the adjacent waterways can be reduced, and the service lives of the cation exchange membrane and the anion exchange membrane are prolonged.
According to the water filtering and purifying system with the water flows flowing in opposite directions, the EDR unit is provided with a plurality of water paths, the water flow directions of the adjacent water paths are opposite, each water path comprises a concentrated water path and a pure water path, and the concentrated water path is adjacent to the pure water path. The water flow direction of the concentrated water waterway is parallel to the water flow direction of the pure water waterway and opposite to the water flow direction, the outlet of the concentrated water waterway is close to the water outlet of the pure water waterway, and the outlet of the pure water waterway is close to the water outlet of the concentrated water waterway. The rivers opposite direction through the water route of different concentrations reduces the pressure differential to ion exchange membrane both sides, improves the desalination filter effect of EDR unit to salt ion, reduces the change frequency of EDR unit.
Another object of the present invention is to provide a water purifier for desalination and filtration by a water filtration and purification system in which water flows in opposite directions, wherein the filtration and purification system has a plurality of sets of water flow channels arranged in an EDR unit, the water flow directions between adjacent water flow channels are opposite, the outflow directions of pure water and concentrated water are opposite, and the water flow directions of water paths with different concentrations are opposite, so as to reduce the pressure difference between both sides of an ion exchange membrane, improve the desalination and filtration effects of the EDR unit on salt ions, and reduce the replacement frequency of the EDR unit.
The above object of the present invention is achieved by the following technical measures.
The utility model provides a water purifier carries out desalination and filtration through a drainage clean system that rivers flow in opposite directions, is provided with many water routes in its EDR unit, and the rivers opposite direction in adjacent water route, the water route includes dense water route and pure water route, and the dense water route is adjacent with the pure water route. The water flow direction of the concentrated water waterway is parallel to the water flow direction of the pure water waterway and opposite to the water flow direction, the outlet of the concentrated water waterway is close to the water outlet of the pure water waterway, and the outlet of the pure water waterway is close to the water outlet of the concentrated water waterway.
Preferably, each water path is comprised of a set of anion exchange membranes and a set of cation exchange membranes. Salt positive ions carried in raw water flowing through the water channels are adsorbed to adjacent water channels by the cation exchange membrane, salt negative ions carried in the raw water are adsorbed to adjacent water channels by the anion exchange membrane, the water channels with more salt positive ions and salt negative ions become concentrated water channels, the water channels with less salt positive ions and salt negative ions become pure water channels, and the flow directions of the concentrated water channels and the pure water channels are opposite.
Preferably, the anion exchange membranes and the cation exchange membranes are arranged in a staggered manner, and can adsorb salt positive ions and salt negative ions to raw water in the same water path, so that the raw water is filtered.
Preferably, the multiple groups of water paths are arranged in sequence and equally, raw water enters from the water paths which are separated from each other, and water inlets of the adjacent water paths are opposite.
Preferably, the plurality of sets of water paths are arranged unequally.
Preferably, the filtration water purification system is further provided with a positive plate, and the positive plate and the anion exchange membrane jointly form a concentrated water channel. The positive plate can be electrified to adsorb salt negative ions in raw water.
Preferably, the filtration water purification system is further provided with a negative plate, and the negative plate and the cation exchange membrane jointly form a concentrated water channel. The negative plate can be electrified to adsorb salt positive ions in raw water.
Preferably, the plurality of sets of water paths are assembled between the positive and negative plates.
Preferably, the number of the water paths is 2-10.
Preferably, the water filtration and purification system is further provided with a front filter element, and the front filter element is assembled at a pipeline where the raw water pipeline is communicated with the EDR unit. Leading filter core can carry out first heavy filtration to the raw water, reduces the macromolecular impurity that gets into in the EDR unit, reduces the risk of EDR unit scale deposit.
Preferably, above-mentioned drainage clean system still is provided with the self priming pump, and the pipeline department between leading filter core and EDR unit is assembled to the self priming pump. The self-priming pump accelerates the water flow speed of raw water entering the EDR unit and accelerates the desalination and filtration efficiency of the EDR unit.
Preferably, the water filtration and purification system is further provided with a rear filter element, and the rear filter element is assembled at a pipeline where the pure water pipeline is communicated with the EDR unit. The post-positioned filter element carries out filtration and desalination on the pure water in the pure water pipeline again, and the water quality of the water filtration and filtration unit is ensured.
When filtering water purification system and getting into the water purification operating mode, positive plate and the negative plate circular telegram to the EDR unit, the raw water in adjacent water route flows in from opposite direction respectively, under the effect of positive plate and negative plate, salt positive ion in the pure water route passes through during cation exchange membrane gets into adjacent dense water route, salt negative ion in the pure water route passes through anion exchange membrane and gets into in the adjacent pure water route, the rivers direction in dense water route is opposite with the rivers direction in pure water route, dense water in the dense water route is discharged from the dense water export of the entry one end in pure water route, pure water in the pure water route is discharged from the pure water delivery port of the entry one end in dense water. The water flows of the pure water waterway and the concentrated water waterway flow in opposite directions, so that the pressure difference of the adjacent waterways can be reduced, and the service lives of the cation exchange membrane and the anion exchange membrane are prolonged.
The invention relates to a water purifier, which carries out desalination and filtration by a water filtration and purification system with opposite flowing water flows. The water flow direction of the concentrated water waterway is parallel to the water flow direction of the pure water waterway and opposite to the water flow direction, the outlet of the concentrated water waterway is close to the water outlet of the pure water waterway, and the outlet of the pure water waterway is close to the water outlet of the concentrated water waterway. The rivers opposite direction through the water route of different concentration reduces the pressure differential to ion exchange membrane both sides, improves the desalination filter effect of EDR unit to salt ion, reduces the change frequency of EDR unit, prolongs the life of water purifier.
Drawings
The invention is further illustrated by means of the attached drawings, the content of which is not in any way limiting.
Fig. 1 is a schematic diagram showing a water circuit connection relationship of a water filtration and purification system in which water flows in opposite directions in example 1.
Fig. 2 is a schematic view showing a water path connection relationship of the water purifier according to embodiment 2.
In fig. 1 and 2 include:
an EDR unit 100,
A pure water passage 110, a concentrated water passage 120, a cation exchange membrane 130, an anion exchange membrane 140, a positive electrode plate 150, a negative electrode plate 160,
Leading filter core 200, self priming pump 300, rearmounted filter core 400.
Detailed Description
The invention is further illustrated by the following examples.
Example 1.
A plurality of water paths are arranged in an EDR unit 100 of the water filtering and purifying system with opposite water flows, the water paths in adjacent water paths are opposite in water flow direction, the water paths comprise a concentrated water path 120 and a pure water path 110, and the concentrated water path 120 is adjacent to the pure water path 110. The water flow direction of the concentrated water channel 120 is parallel to and opposite to the water flow direction of the pure water channel 110, the outlet of the concentrated water channel 120 is close to the water outlet of the pure water channel 110, and the outlet of the pure water channel 110 is close to the water outlet of the concentrated water channel 120. 2-10 water channels can be provided in the EDR unit 100, and in the present embodiment, 5 water channels are provided in the EDR unit 100. The distribution of 5 water paths in the EDR unit 100 is shown in fig. 1.
In this embodiment, each water circuit is composed of a set of anion exchange membranes 140 and a set of cation exchange membranes 130. The positive salt ions carried in the raw water flowing through the water channels are adsorbed to the adjacent water channels by the cation exchange membrane 130, the negative salt ions carried in the raw water are adsorbed to the adjacent water channels by the anion exchange membrane 140, the water channels with more positive salt ions and more negative salt ions become the concentrated water channels 120, the water channels with less positive salt ions and less negative salt ions become the pure water channels 110, and the flow directions of the concentrated water channels 120 and the pure water channels 110 are opposite.
In this embodiment, the anion exchange membranes 140 and the cation exchange membranes 130 are arranged in a staggered manner, and the anion exchange membranes 140 and the cation exchange membranes 130 can adsorb salt positive ions and salt negative ions to the raw water in the same water channel, so as to filter the raw water.
In this embodiment, 5 sets of water channels in the EDR unit 100 are arranged in sequence and equally, raw water enters from the separated water channels, and the water inlets of the adjacent water channels are opposite.
Note that the 5 groups of water passages in the EDR unit 100 may be arranged unequally, and are not limited to one arrangement in the present embodiment.
In this embodiment, the filtration water purification system further includes a positive plate 150, and the positive plate 150 and the anion exchange membrane 140 together form a concentrated water path 120. The positive electrode plate 150 is energized to adsorb negative salt ions in the raw water.
In this embodiment, the filtration water purification system further includes a negative plate 160, and the negative plate 160 and the cation exchange membrane 130 together form a concentrated water path 120. The negative electrode plate 160 is energized to adsorb positive salt ions in the raw water.
In this embodiment, 5 sets of water channels are assembled between the positive and negative plates 150 and 160.
When the filtration water purification system enters a water purification working condition, the positive plate 150 and the negative plate 160 of the EDR unit 100 are powered on, raw water in adjacent water channels respectively flows in from opposite directions, under the action of the positive plate 150 and the negative plate 160, salt positive ions in the pure water channel 110 enter the adjacent concentrated water channel 120 through the cation exchange membrane 130, salt negative ions in the pure water channel 110 enter the adjacent pure water channel 110 through the anion exchange membrane 140, the water flow direction of the concentrated water channel 120 is opposite to that of the pure water channel 110, concentrated water in the concentrated water channel 120 is discharged from a concentrated water outlet at one end of an inlet of the pure water channel 110, and pure water in the pure water channel 110 is discharged from a pure water outlet at one end of an inlet of the concentrated water channel 120. The water flows in the pure water channel 110 and the concentrated water channel 120 flow in opposite directions, so that the pressure difference between the adjacent channels can be reduced, and the service lives of the cation exchange membrane 130 and the anion exchange membrane 140 can be prolonged.
In the filtration and purification system with opposite flowing water streams of the embodiment, a plurality of water paths are arranged in the EDR unit 100, the water flow directions of adjacent water paths are opposite, the water paths include a concentrated water path 120 and a pure water path 110, and the concentrated water path 120 is adjacent to the pure water path 110. The water flow direction of the concentrated water channel 120 is parallel to and opposite to the water flow direction of the pure water channel 110, the outlet of the concentrated water channel 120 is close to the water outlet of the pure water channel 110, and the outlet of the pure water channel 110 is close to the water outlet of the concentrated water channel 120. The water flow direction through the water channels with different concentrations is opposite, the pressure difference between two sides of the ion exchange membrane is reduced, the desalting and filtering effects of the EDR unit 100 on salt ions are improved, and the replacement frequency of the EDR unit 100 is reduced.
Example 2.
A water purifier, as shown in fig. 2, is used for desalination and filtration by a water filtration and purification system with opposite flowing water flows, wherein a plurality of water paths are arranged in an EDR unit 100, the water flow directions of adjacent water paths are opposite, the water paths comprise a concentrated water path and a pure water path, and the concentrated water path is adjacent to the pure water path. The water flow direction of the concentrated water waterway is parallel to the water flow direction of the pure water waterway and opposite to the water flow direction, the outlet of the concentrated water waterway is close to the water outlet of the pure water waterway, and the outlet of the pure water waterway is close to the water outlet of the concentrated water waterway.
In this embodiment, each water path is comprised of a set of anion exchange membranes and a set of cation exchange membranes. Salt positive ions carried in raw water flowing through the water channels are adsorbed to adjacent water channels by the cation exchange membrane, salt negative ions carried in the raw water are adsorbed to adjacent water channels by the anion exchange membrane, the water channels with more salt positive ions and salt negative ions become concentrated water channels, the water channels with less salt positive ions and salt negative ions become pure water channels, and the flow directions of the concentrated water channels and the pure water channels are opposite.
In this embodiment, anion exchange membrane and cation exchange membrane staggered arrangement, anion exchange membrane and cation exchange membrane can carry out the absorption of salt positive ion and salt negative ion to the raw water in same water route, reach the filtering action to the raw water.
In this embodiment, multiunit water route is equallyd divide in proper order and is arranged, and the water inlet of water route adjacent is opposite from the water route entering that is separated by.
It should be noted that the plurality of sets of water paths may also be arranged unequally, and is not limited to the one in the embodiment.
In this embodiment, the filtration water purification system is further provided with a positive plate, and the positive plate and the anion exchange membrane jointly form a concentrated water path. The positive plate can be electrified to adsorb salt negative ions in raw water.
In this embodiment, filter water purification system still is provided with the negative plate, and the negative plate constitutes a dense water route jointly with cation exchange membrane. The negative plate can be electrified to adsorb salt positive ions in raw water.
In this embodiment, the multiunit water route is assembled between positive plate and negative plate.
In this embodiment, 10 water paths are provided, it should be noted that 2, 4 or 6 water paths may also be provided for multiple groups of water paths, and the number of the water paths is not limited to one in this embodiment.
In this embodiment, the water filtration and purification system is further provided with a pre-filter 200, and the pre-filter 200 is assembled at a pipeline where the raw water pipeline is communicated with the EDR unit 100. The pre-filter element 200 can filter raw water for the first time, reduce macromolecular impurities entering the EDR unit 100, and reduce the risk of scaling of the EDR unit 100.
In this embodiment, the water filtration purification system is further provided with a self-priming pump 300, and the self-priming pump 300 is assembled at the pipeline between the front-located filter element 200 and the EDR unit 100. The self-priming pump 300 accelerates the rate of flow of raw water into the EDR unit 100, and accelerates the desalination and filtration efficiency of the EDR unit 100.
In this embodiment, the water filtration and purification system is further provided with a post-filter 400, and the post-filter 400 is assembled at a pipeline where the pure water pipeline is communicated with the EDR unit 100. The post-filter element 400 filters and desalts the pure water in the pure water pipeline again, and the water quality of the water filtering and filtering unit is ensured.
When filtering water purification system and getting into the water purification operating mode, positive plate and negative plate circular telegram to EDR unit 100, the raw water in adjacent water route flows in from opposite direction respectively, under the effect of positive plate and negative plate, salt positive ion in the pure water route passes through during cation exchange membrane gets into adjacent dense water route, salt negative ion in the pure water route passes through anion exchange membrane and gets into in the adjacent pure water route, the rivers direction in dense water route is opposite with the rivers direction in pure water route, dense water in the dense water route is discharged from the dense water export of the entry one end in pure water route, pure water in the pure water route is discharged from the pure water delivery port of the entry one end in dense water. The water flows of the pure water waterway and the concentrated water waterway flow in opposite directions, so that the pressure difference of the adjacent waterways can be reduced, and the service lives of the cation exchange membrane and the anion exchange membrane are prolonged.
The water purifier of the embodiment carries out desalination and filtration through a water filtration and purification system with opposite flowing water flow, and a plurality of water paths are arranged in an EDR unit 100 of the water filtration and purification system, the water flow directions of the adjacent water paths are opposite, the water paths comprise a concentrated water path and a pure water path, and the concentrated water path is adjacent to the pure water path. The water flow direction of the concentrated water waterway is parallel to the water flow direction of the pure water waterway and opposite to the water flow direction, the outlet of the concentrated water waterway is close to the water outlet of the pure water waterway, and the outlet of the pure water waterway is close to the water outlet of the concentrated water waterway. The rivers opposite direction through the water route of different concentrations reduces the pressure differential to ion exchange membrane both sides, improves the desalination filter effect of EDR unit 100 to salt ion, reduces the change frequency of EDR unit 100, prolongs the life of water purifier.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A water filtration and purification system with opposite flowing water flows is characterized in that: be provided with many water routes in its EDR unit, the rivers opposite direction in adjacent water route, the water route includes dense water route and pure water route, and the dense water route is adjacent with the pure water route.
2. The water filtration purification system according to claim 1, wherein: each water path is composed of a group of anion exchange membranes and a group of cation exchange membranes.
3. The water filtration purification system according to claim 2, wherein: the anion exchange membranes and the cation exchange membranes are arranged in a staggered manner.
4. The water filtration purification system with counter-current water flow as claimed in claim 3, wherein: the multiple groups of water paths are arranged in sequence and equally.
5. The water filtration purification system with counter-current water flow as claimed in claim 3, wherein: the water paths are arranged unequally.
6. The water stream counter-current water filtration purification system according to claim 4, wherein: the positive plate is also arranged and is attached to the anion exchange membrane.
7. The water filtration purification system with counter-current water flow as claimed in claim 6, wherein: and the negative plate is attached to the cation exchange membrane.
8. The water filtration purification system according to any one of claims 1 to 7, wherein: the multiunit water route is assembled between positive plate and negative plate.
9. The water filtration purification system according to any one of claims 1 to 7, wherein: the number of the water paths is 2-100.
10. A water purifier is characterized in that: a water filtration purification system provided with a counter current flow of water streams as claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911420253.3A CN111003767A (en) | 2019-12-31 | 2019-12-31 | Water filtering and purifying system with water flows flowing in opposite directions and water purifier |
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| CN201911420253.3A CN111003767A (en) | 2019-12-31 | 2019-12-31 | Water filtering and purifying system with water flows flowing in opposite directions and water purifier |
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| CN212151720U (en) * | 2019-12-31 | 2020-12-15 | 佛山市云米电器科技有限公司 | Water filtering and purifying system with water flows flowing in opposite directions and water purifier |
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- 2019-12-31 CN CN201911420253.3A patent/CN111003767A/en active Pending
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| JP2015147172A (en) * | 2014-02-06 | 2015-08-20 | 三菱レイヨンアクア・ソリューションズ株式会社 | Method for producing pure water |
| CN104016529A (en) * | 2014-06-05 | 2014-09-03 | 中国科学院过程工程研究所 | Multi-stage countercurrent electrodialyzer reversal-based method for treating saline wastewater in coal chemical industry |
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Effective date of registration: 20211027 Address after: 528308 No.2, North Xinxi 4th Road, Xiashi village, Lunjiao street, Shunde District, Foshan City, Guangdong Province Applicant after: Guangdong Chestnut Technology Co.,Ltd. Address before: 528300 Nepheline Village Committee, Lunjiao Sub-district Office, Shunde District, Foshan City, Guangdong Province Applicant before: FOSHAN VIOMI ELECTRICAL TECHNOLOGY Co.,Ltd. Applicant before: Chen Xiaoping |