CN203683251U - Water purifier with two-stage filtered water output - Google Patents
Water purifier with two-stage filtered water output Download PDFInfo
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- CN203683251U CN203683251U CN201320879813.3U CN201320879813U CN203683251U CN 203683251 U CN203683251 U CN 203683251U CN 201320879813 U CN201320879813 U CN 201320879813U CN 203683251 U CN203683251 U CN 203683251U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 153
- 238000001914 filtration Methods 0.000 claims abstract description 132
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 37
- 238000001179 sorption measurement Methods 0.000 claims abstract description 36
- 238000012216 screening Methods 0.000 claims abstract description 35
- 239000002351 wastewater Substances 0.000 claims abstract description 33
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 32
- 239000012528 membrane Substances 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 238000005374 membrane filtration Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 description 13
- 238000000746 purification Methods 0.000 description 7
- 239000008399 tap water Substances 0.000 description 7
- 235000020679 tap water Nutrition 0.000 description 7
- 235000020188 drinking water Nutrition 0.000 description 5
- 239000003651 drinking water Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000003245 working effect Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 2
- 235000012054 meals Nutrition 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The utility model relates to a water purifier with two-stage filtered water output. The water purifier comprises a screening filtering device, a first adsorption filtering device, a millipore filtering device, a reverse osmosis filtering device and a second adsorption filtering device, wherein a UF (ultrafiltration) membrane filter element is arranged in the screening filtering device which is provided with a water inlet, a pure water outlet and a waste water outlet, the pure water outlet of the screening filtering device is connected to the water inlet of the first adsorption filtering device, the water outlet of the first adsorption filtering device is connected to the water inlet of the millipore filtering device, the water outlet of the millipore filtering device is connected to the water inlet of the reverser osmosis filtering device, the water outlet end of the millipore filtering device is also provided with a first grade water delivery outlet, an RO (reverse osmosis) membrane filter element is arranged in the reverse osmosis filtering device, the reverse osmosis filtering device also comprises the pure water outlet and the waste water outlet, the pure water outlet of the reverse osmosis filtering device is connected to the water inlet of the second adsorption filtering device, and the water outlet of the second adsorption filtering device is a second grade water delivery outlet.
Description
Technical field
The utility model relates to water purifying plant field, refers to especially a kind of water purifier that can export two-step purification water, can provide two kinds of water that clean level is different according to user's demand.
Background technology
Point out according to hygiene department's investigation, human diseases 80% is relevant with water, the main sterilization method of tap water is chlorination sterilization, although can remove a large amount of bacteriums, but also exist objectionable impurities, especially the heavy metal in water, the compositions such as chlorine molecule and nitrite, course of conveying simultaneously, water tower storage etc. all can cause secondary pollution to a certain degree, although by water boil, but cannot remove the objectionable impuritiess such as the heavy metal in water, the excessive absorption of these materials, can cause great harm to human body, threatening that the mankind's is healthy, general small towns is not used the condition of similar city tap-water, small towns population is the source using underground water or earth's surface natural stream networks as tap water directly, its present situation is, rural area disperses water intaking household drinking water to pollute, severe overweight, small towns tap water part exceeds standard, and do not reach People's Republic of China's " drinking water sanitary standard ", and the present situation of above-mentioned pollution has formed the great threat to town and country personnel health.
People's three meals in a day, drinking-water pre/after meal, and wash water is the thing of commonly using, for people can drink the good water of upper qualified health, manufacturer and scientific research personnel have developed many water purifier products, but these water purifier product design structures are comparatively simple, Social benefit and economic benefit is remarkable not, more lack human oriented design, its product is mainly based on purifying again cities and towns tap water, the object that reaches tap water designs, can not solve rural and urban population directly adopts underground water or the part water sources such as tap water that exceed standard to be better than People's Republic of China's " drinking water sanitary standard " and to become the object of direct drinking water after purifying.
A kind of ultrafiltration membrane water purifier as disclosed in the patent No. 201320334202.0, comprise the first-level filtering group of connecting by water pipe successively, secondary filter group, three grades of filter groups, ultra-filtration membrane water unit processed and eddy filter, the water side of eddy filter and water tap are connected, on water pipe between three grades of filter groups and ultra-filtration membrane water unit processed, be provided with topping-up pump, described eddy filter comprises cylindrical shell, partition member in cylindrical shell is set, revolve the upper cover that is located at cylindrical shell top, revolve the lower cover that is located at cylindrical shell bottom, on described partition member, form spiral helicine shim, the outer of shim and cylinder inboard wall are fitted and are formed a spiral helicine filtration channel, the closely knit activated carbon granule that is filled with in filtration channel, on upper and lower cover, be provided with and the joint of pipeline connection, in upper and lower cover, be provided with the cotton filter core of PP that prevents that activated carbon granule from flowing out.This mode just adds various filter elements the water of process is filtered on water channel, this device can obtain extraordinary purifying water effect really at the use initial stage, but one or two months even will be piled up a large amount of dirt impurity in filter core after half a year and be drained nowhere, the water of follow-up process all can pass through in dirt and impurity, this water purifier does not only reach purifying water effect, allow on the contrary user's daily water consumption become the bath water of impurity and dirt, unless now more renew cartridge have no other way.
And the disclosed a kind of box body type ultrafiltration membrane water purifier of the patent No. 201120381671.9, it just filters and possesses the structure of the described PP cellucotton filter core of cleaning by the large granular impurity in PP cellucotton filter core water at the water inlet initial stage, follow-up filtration procedure is consistent with the disclosed mode of above-mentioned patent, all filtrations of water being carried out to trafficability characteristic, can only keep in relatively short time limit of service, water being played a role in filtering, impurity dirt in long water of time one will be deposited in each filter core successively, cause filter core to lose efficacy, make on the contrary water in impurity dirt by rear output.
Water Filter as above can only reach water purification object at the use initial stage, later stage is just used more renew cartridge, and above-mentioned water purification mode filter core is short work-ing life, how to provide a kind of filter core lasting work-ing life, and the effective water purifier of drainage is the problem that the utility model will be researched and solved.
Utility model content
Technical problem underlying to be solved in the utility model is: traditional water purifier is that the pure various filter cores that utilize block filtration to the water passing through, but but imperfect filter core is processed structure, therefore use for some time in filter core, can pile up a large amount of dirt and impurity later, the object that does not only have cleaning water also can make water more be polluted, but also shortened work-ing life of the core filter core of water purifier, be unfavorable for life-time service at home.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of water purifier with the output of two-stage filtration water is provided, it comprises the screening filtration unit connecting successively by hydraulic pipe, the first adsorption filtration device, microporous filter, reverse osmosis filtration device and the second adsorption filtration device, wherein, in described screening filtration unit, be provided with UF ultrafiltration membrance filter core, described screening filtration unit has water-in, pure water inlet and wastewater outlet, the water-in of described screening filtration unit connects water-supply pipe, the pure water inlet of described screening filtration unit is connected to the water-in of described the first adsorption filtration device, the water outlet of described the first adsorption filtration device is connected to the water-in of described microporous filter, the water outlet of described microporous filter is connected to the water-in of described reverse osmosis filtration device, the water outlet end of described microporous filter is also provided with first step water delivery outlet, described microporous filter is also provided with topping-up pump to the hydraulic pipe between described reverse osmosis filtration device, in described reverse osmosis filtration device, be provided with RO membrane filtration core, described reverse osmosis filtration device also has pure water outlet and wastewater outlet, the pure water outlet of described reverse osmosis equipment is connected to the water-in of described the second adsorption filtration device, the water outlet of described the second adsorption filtration device is second stage water delivery outlet.
Be preferable over: in described the first adsorption filtration device and described the second adsorption filtration device, be provided with activated carbon filtration core, in described microporous filter, be provided with sintering activity charcoal and cross filter core or the cotton filter core of crossing of PP.
Be preferable over: described screening filtration unit comprises the tubular shell of sealing, in the housing of described tubular, be provided with two dividing plates, two described dividing plates are separated out intake antrum in the housing of described tubular, drainage chamber and waste water chamber, described UF ultrafiltration membrance filter core is made up of some UF ultrafiltration membrane pipes, described UF ultrafiltration membrane pipe is arranged in described drainage chamber, the cross-under that described UF ultrafiltration membrane pipe two ends seal is respectively on two described dividing plates, one end correspondence is positioned at described intake antrum, the other end correspondence is positioned at described waste water chamber, the water-in of described screening filtration unit is communicated with described intake antrum, described intake antrum is communicated with described waste water chamber by described UF ultrafiltration membrane pipe, the wastewater outlet of described screening filtration unit is communicated with described waste water chamber, water in described UF ultrafiltration membrane pipe infiltrates through in described drainage chamber, described drainage chamber is communicated with the pure water inlet of described screening filtration unit.
Be preferable over: described reverse osmosis filtration device comprises sealing and is the shell of bobbin shape, the water-in of described reverse osmosis filtration device and wastewater outlet are separately positioned on the shell two ends of described bobbin shape, described RO membrane filtration core is arranged in described shell, described RO membrane filtration core comprises flow-guiding screen, RO diaphragm, see through hydrographic net and header, described flow-guiding screen, described RO diaphragm and the described hydrographic net that sees through are cascading, and be tubular and be wound on described header, on the tube wall of described header, offer some gully-holes, and described header one end sealing, the other end of described header is communicated with described pure water outlet.
Compared with prior art, beneficial effect of the present utility model is:
One, can, according to different user demands point two-stage for the water that user provides two kinds of different degree of purifications, meet the food materials such as fruits and vegetables and clean and the different purification demands of drinking;
Two, can clean anywhere or anytime UF ultrafiltration membrance filter core and the RO membrane filtration core in described water purifier, only need open the water that both wastewater outlet can enter by water-in impurity and the Fouling Cleaning of accumulative total are fallen, the work-ing life that can improve filter core in ensureing the result of use of filter core.
Brief description of the drawings
Fig. 1 is principle schematic of the present utility model.
Fig. 2 is screening filter apparatus configuration schematic diagram of the present utility model.
Fig. 3 is reverse osmosis filtration device schematic diagram of the present utility model.
Embodiment
Below with reference to accompanying drawing 1 to 3 and preferred embodiment, a kind of water purifier with the output of two-stage filtration water the utility model proposes is done more to describe in detail.
As shown in Figures 1 to 3, the utility model provides a kind of water purifier with the output of two-stage filtration water, it comprises the screening filtration unit 10 connecting successively by hydraulic pipe 1, the first adsorption filtration device 20, microporous filter 30, reverse osmosis filtration device 40 and the second adsorption filtration device 50, in described screening filtration unit 10, be provided with UF ultrafiltration membrance filter core 11, described screening filtration unit 10 has water-in 12, pure water inlet 13 and wastewater outlet 14, the water-in of described screening filtration unit 10 connects extraneous water-supply pipe, the pure water inlet 13 of described screening filtration unit 10 is connected to the water-in 21 of described the first adsorption filtration device 20, the water outlet 22 of described the first adsorption filtration device 20 is connected to the water-in 31 of described microporous filter 30, the water outlet 32 of described microporous filter 30 is connected to the water-in 41 of described reverse osmosis filtration device 40, water outlet 32 ends of described microporous filter 30 are also provided with first step water delivery outlet 2, the UF ultrafiltration membrance filter core 11 being delivered in described screening filtration unit 10 by described extraneous water-supply pipe sieves filtration, the material filtering that utilizes described UF ultrafiltration membrance filter core 11 that molecule is greater than to 0.01 micron in this process, water purification after filtering is delivered to and in described the first adsorption filtration device 20, de-tastes and the pollution molecule suspending in water is adsorbed, all can discharge by the wastewater outlet 14 on described screening filtration unit 10 at sewage and the impurity of described UF ultrafiltration membrance filter core 11 filtration resistances in addition, also can stop the outside water delivery of described pure water inlet 13, and constantly supply water to the water-in 12 of described screening filtration unit 10, open described wastewater outlet 14 drainings realizations cleans described UF ultrafiltration membrance filter core 11 simultaneously, the particle that described microporous filter 30 is taken out of from described the first adsorption filtration device 20 for filtering out water, the water of exporting from described first step water delivery outlet 2 has removed molecule in water and has been greater than more than 0.01 micron impurity and dystopy, the clean level of water can meet the daily food of people and clean used, described microporous filter 30 is also provided with topping-up pump 3 to the hydraulic pipe 1 between described reverse osmosis filtration device 40, in described reverse osmosis filtration device 40, be provided with RO membrane filtration core 42, pressurize to the water in the described reverse osmosis filtration device 40 of input by this topping-up pump 3, make water molecules penetrate described RO membrane filtration core 42 in pressure subinverse, further make water obtain the purification of higher degree, described reverse osmosis filtration device 40 also has pure water outlet 43 and wastewater outlet 44, the pure water outlet 43 of described reverse osmosis equipment 40 is connected to the water-in 51 of described the second adsorption filtration device 50, the water outlet 52 of described the second adsorption filtration device 50 is second stage water delivery outlet, utilize described the second adsorption filtration device 50 to de-taste filtration to the pure water of output in described reverse osmosis filtration device 40, the inorganic salt in the water that molecule in water is greater than 0.0001 micron in the clean level of the water that in described second stage water delivery outlet, the water of output is exported at described first step water transport port 2, have further been filtered out by reverse osmosis, heavy metal ion, organism, colloid, bacterium, the impurity such as virus, can directly drink at the pure water de-tasting after filtration, the sewage that described reverse osmosis filtration device 40 can be blocked described RO film by described wastewater outlet 44 is discharged, and can stop the outside water delivery of described pure water outlet 43, open described wastewater outlet 44, the water of inputting by described water-in 41 is got rid of from described wastewater outlet 44 after described RO membrane filtration core 42, can realize described RO membrane filtration core 42 is cleaned.
Preferred embodiment: be provided with activated carbon filtration core in described the first adsorption filtration device 20 and described the second adsorption filtration device 50, in described microporous filter 30, be provided with sintering activity charcoal and cross filter core or the cotton filter core of crossing of PP, utilize the activated carbon filtration core in described the first adsorption filtration device 20 and described the second adsorption filtration device 50 respectively the clean water of exporting in described screening filtration unit 10 and described reverse osmosis filtration device 40 to be de-tasted to processing, cross the cotton filter core of crossing of filter core or PP by the sintering activity charcoal in described microporous filter 30 water of output in described the first adsorption filtration device 20 is carried out to the processing of filtering activated carbon granule.
Preferred embodiment: as shown in Figure 2, described screening filtration unit 10 comprises the tubular shell 15 of sealing, in the housing 15 of described tubular, be provided with two dividing plates 16, two described dividing plates 16 are separated out intake antrum 17 in the housing 15 of described tubular, drainage chamber 18 and waste water chamber 19, described UF ultrafiltration membrance filter core 11 is made up of some UF ultrafiltration membrane pipes 111, described UF ultrafiltration membrane pipe 111 is arranged in described drainage chamber 18, the cross-under that described UF ultrafiltration membrane pipe 111 two ends seal is respectively on two described dividing plates 16, one end correspondence is positioned at described intake antrum 17, the other end correspondence is positioned at described waste water chamber 19, the water-in 12 of described screening filtration unit 10 is communicated with described intake antrum 17, described intake antrum 17 is communicated with described waste water chamber 19 by described UF ultrafiltration membrane pipe 111, the waste water chamber of described screening filtration unit 10 is communicated with described wastewater outlet 14, water in described UF ultrafiltration membrane pipe 111 infiltrates through in described drainage chamber 18, described drainage chamber 18 is communicated with the pure water inlet 13 of described screening filtration unit 10, impurity in water flows in described waste water chamber 19 by described UF ultrafiltration membrane pipe 111.
Preferred embodiment: as shown in Figure 3, described reverse osmosis filtration device 40 comprises sealing and is the shell 45 of bobbin shape, the water-in 41 of described reverse osmosis filtration device 40 and wastewater outlet 44 are separately positioned on shell 45 two ends of described bobbin shape, described RO membrane filtration core 42 is arranged in described shell 45, described RO membrane filtration core 42 comprises flow-guiding screen 421, RO diaphragm 422, see through hydrographic net 423 and header 424, described flow-guiding screen 421, described RO diaphragm 422 and the described hydrographic net 423 that sees through are cascading, and be tubular and be wound on described header 424, on the tube wall of described header 424, offer some gully-holes 425, and described header 424 one end sealings, the other end of described header 424 is communicated with described pure water outlet 43, entered the water of described shell 45 by described water-in 41 by described flow-guiding screen 421, described RO diaphragm 422 and the described reverse osmosis that sees through hydrographic net 423 are filtered and are entered described header 424 by described gully-hole 425, and by described pure water outlet 43 outputs.
Above-described embodiment does not limit new texture described in the utility model in any form, and all employings are equal to replaces or within technical scheme that the mode such as equivalent transformation obtains all belongs to protection domain of the present utility model.
Claims (4)
1. one kind has the water purifier of two-stage filtration water output, it is characterized in that: comprise the screening filtration unit connecting successively by hydraulic pipe, the first adsorption filtration device, microporous filter, reverse osmosis filtration device and the second adsorption filtration device, wherein, in described screening filtration unit, be provided with UF ultrafiltration membrance filter core, described screening filtration unit has water-in, pure water inlet and wastewater outlet, the water-in of described screening filtration unit connects water-supply pipe, the pure water inlet of described screening filtration unit is connected to the water-in of described the first adsorption filtration device, the water outlet of described the first adsorption filtration device is connected to the water-in of described microporous filter, the water outlet of described microporous filter is connected to the water-in of described reverse osmosis filtration device, the water outlet end of described microporous filter is also provided with first step water delivery outlet, described microporous filter is provided with topping-up pump to the hydraulic pipe between described reverse osmosis filtration device, in described reverse osmosis filtration device, be provided with RO membrane filtration core, described reverse osmosis filtration device also has pure water outlet and wastewater outlet, the pure water outlet of described reverse osmosis equipment is connected to the water-in of described the second adsorption filtration device, the water outlet of described the second adsorption filtration device is second stage water delivery outlet.
2. a kind of water purifier with the output of two-stage filtration water as claimed in claim 1, it is characterized in that: in described the first adsorption filtration device and described the second adsorption filtration device, be provided with activated carbon filtration core, in described microporous filter, be provided with sintering activity charcoal and cross filter core or the cotton filter core of crossing of PP.
3. a kind of water purifier with the output of two-stage filtration water as claimed in claim 2, it is characterized in that: described screening filtration unit comprises the tubular shell of sealing, in described tubular shell, be provided with two dividing plates, two described dividing plates are separated out intake antrum in described tubular shell, drainage chamber and waste water chamber, described UF ultrafiltration membrance filter core is made up of some UF ultrafiltration membrane pipes, described UF ultrafiltration membrane pipe is arranged in described drainage chamber, the cross-under that described UF ultrafiltration membrane pipe two ends seal is respectively on two described dividing plates, one end correspondence is positioned at described intake antrum, the other end correspondence is positioned at described waste water chamber, the water-in of described screening filtration unit is communicated with described intake antrum, described intake antrum is communicated with described waste water chamber by described UF ultrafiltration membrane pipe, the wastewater outlet of described screening filtration unit is communicated with described waste water chamber, water in described UF ultrafiltration membrane pipe infiltrates through in described drainage chamber, described drainage chamber is communicated with the pure water inlet of described screening filtration unit.
4. a kind of water purifier with the output of two-stage filtration water as claimed in claim 3, it is characterized in that: described reverse osmosis filtration device comprises sealing and is the shell of bobbin shape, the water-in of described reverse osmosis filtration device and wastewater outlet are separately positioned on the shell two ends of described bobbin shape, described RO membrane filtration core is arranged in described shell, described RO membrane filtration core comprises flow-guiding screen, RO diaphragm, see through hydrographic net and header, described flow-guiding screen, described RO diaphragm and the described hydrographic net that sees through are cascading, and be tubular and be wound on described header, on the tube wall of described header, offer some gully-holes, and described header one end sealing, the other end of described header is communicated with described pure water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879813.3U CN203683251U (en) | 2013-12-30 | 2013-12-30 | Water purifier with two-stage filtered water output |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320879813.3U CN203683251U (en) | 2013-12-30 | 2013-12-30 | Water purifier with two-stage filtered water output |
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| CN203683251U true CN203683251U (en) | 2014-07-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823808A (en) * | 2017-03-10 | 2017-06-13 | 上海六滴环保科技有限公司 | The double film water purification reverse osmosis membranes of one |
| CN107364984A (en) * | 2017-08-16 | 2017-11-21 | 张家港光洲机械制造有限公司 | A kind of multi-stage, efficient water purification apparatus |
-
2013
- 2013-12-30 CN CN201320879813.3U patent/CN203683251U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106823808A (en) * | 2017-03-10 | 2017-06-13 | 上海六滴环保科技有限公司 | The double film water purification reverse osmosis membranes of one |
| CN107364984A (en) * | 2017-08-16 | 2017-11-21 | 张家港光洲机械制造有限公司 | A kind of multi-stage, efficient water purification apparatus |
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Effective date of registration: 20170601 Address after: 518000, B6, building two, building A2, easy industrial zone, No. 172, Air City Avenue, Shenzhen, Guangdong, Baoan District Patentee after: SHENZHEN XIWEI TECHNOLOGY CO.,LTD. Address before: 415000, No. 2, building 103, No. 1 East Renmin Road, Wuling District, Hunan, Changde Province, 9 Patentee before: Wu Dean |
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Granted publication date: 20140702 |
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