CN201990550U - Non-hydrophilic filter membrane and ultrafiltation membrane jointly-using water purifier - Google Patents
Non-hydrophilic filter membrane and ultrafiltation membrane jointly-using water purifier Download PDFInfo
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- CN201990550U CN201990550U CN2011200960578U CN201120096057U CN201990550U CN 201990550 U CN201990550 U CN 201990550U CN 2011200960578 U CN2011200960578 U CN 2011200960578U CN 201120096057 U CN201120096057 U CN 201120096057U CN 201990550 U CN201990550 U CN 201990550U
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- 239000012528 membrane Substances 0.000 title claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000001914 filtration Methods 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000741 silica gel Substances 0.000 claims abstract description 13
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims description 50
- 238000000108 ultra-filtration Methods 0.000 claims description 34
- 239000011258 core-shell material Substances 0.000 claims description 21
- 239000010865 sewage Substances 0.000 claims description 7
- 238000005374 membrane filtration Methods 0.000 claims description 4
- 230000008595 infiltration Effects 0.000 claims description 3
- 238000001764 infiltration Methods 0.000 claims description 3
- 235000020188 drinking water Nutrition 0.000 abstract description 10
- 239000003651 drinking water Substances 0.000 abstract description 10
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- -1 polypropylene Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 239000008399 tap water Substances 0.000 description 16
- 235000020679 tap water Nutrition 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000000126 substance Substances 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 230000000813 microbial effect Effects 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 235000010755 mineral Nutrition 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
A non-hydrophilic filter membrane and ultrafiltation membrane jointly-using water purifier comprises a non-hydrophilic filter membrane and an external pressure type polypropylene fiber (PPF) filtering device, and is characterized by further comprising an external pressure type ultrafiltation membrane filtering device. The left side of a lower valve seat of the external pressure type ultrafiltation membrane filtering device is provided with a water inlet, and the right side of the lower valve seat of the external pressure type ultrafiltation membrane filtering device is provided with a water outlet. A screw external thread which is connected with a barrel is positioned in the lower valve seat of a sealing container, and a lower opening of the barrel is provided with a screw internal thread which is connected with the lower valve seat. The center of the lower valve seat is provided with a circular clamping pipe and a silica gel seal ring which are in screwing connection with an external pressure type ultrafiltation membrane casing, and the ultrafiltation membrane casing and an external pressure type ultrafiltation membrane filtering core are positioned in the barrel. The lower end of the external pressure type ultrafiltation membrane casing is provided with a stud which is in screwing connection with the circular clamping pipe. The lower valve seat of the sealing container is provided with a pedestal. The non-hydrophilic filter membrane and a water outlet of the external pressure type PPF filtering device are communicated with the water inlet of the external pressure type ultrafiltation membrane filtering device. The non-hydrophilic filter membrane and ultrafiltation membrane jointly-using water purifier is economical and practical, and can provide the urban-and-rural families, enterprises and public institutions with qualified and hygienic direct drinking water.
Description
Technical field
The utility model relates to water correction plant, particularly the manufacturing field of the water purifier of the tap water that uses for town-dweller-rural-family and enterprises and institutions.
Background technology
Point out according to the health organization investigation, human diseases 80% is relevant with water, the main sterilization method of tap water is the chlorination sterilization, though can remove a large amount of bacteriums, but also exist objectionable impurities, especially the heavy metal in the water, compositions such as chlorine molecule and nitrite, the while course of conveying, water tower storage etc. all can cause secondary pollution to a certain degree, although with water boil, but can't remove the objectionable impuritiess such as heavy metal in the water, the excessive absorption of these materials can cause great harm to human body, threatening human healthy, the part of town and country tap water 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 constituted the very big threat to the town and country personnel health.
Known on the market water purifier product design structure is comparatively simple, with low content of technology, there is certain defective, especially a technical bottleneck that has arranged into this series products is just being washed in the quick replacing and the classification of filter core and filter housing, its product mainly is based on the purification again to city tap-water, the purpose that reaches Drinking Water designs, can not solve rural and urban population and directly adopt self-control tap water water source after purifying, to be better than People's Republic of China's " drinking water sanitary standard ", become the purpose of Drinking Water.As: Chinese patent literature discloses " a kind of water-purifying filter " (Sy168246427), is that water is former with the tap water, adopts the filtration of PP cellucotton, active carbon purifying to be treated as Drinking Water.
The utility model content
The purpose of this utility model provides a kind of non-hydrophilic filter membrane and ultra-filtration membrane coupled water purifying device, is better than (comprising the self-control tap water) problem of the People's Republic of China's " drinking water sanitary standard " to solve the town and country tap water that exceeds standard after purifying.This novel purpose is realized by following technical scheme: a kind of non-hydrophilic filter membrane and ultra-filtration membrane coupled water purifying device, comprise non-hydrophilic filter membrane and external-compression type PPF filtration unit, it is characterized in that, also have the external-compression type ultrafiltration membrane filter device: the left side of its lower valve base is provided with water-in, the right side has water outlet, the top of encloses container cylindrical shell is provided with sewage draining exit, be provided with the spiral external sealing plug that connects cylindrical shell in the lower valve base of encloses container, the end opening of cylindrical shell is provided with the spiral internal sealing plug that connects lower valve base, the center of lower valve base is provided with the circular card pipe of the external-compression type ultra-filtration membrane putamina that spins, silica gel sealing ring, be provided with ultra-filtration membrane putamina and external-compression type ultrafiltration membrance filter core in the cylindrical shell, the lower end of external-compression type ultra-filtration membrane putamina is provided with the double-screw bolt that spins mutually with the circular card pipe, and the lower valve base of encloses container is provided with pedestal; The water outlet of described non-hydrophilic filter membrane and external-compression type PPF filtration unit is communicated with the water-in of external-compression type ultrafiltration membrane filter device.
Non-hydrophilic filter membrane and external-compression type PPF filtration unit: the left side of its lower valve base is provided with water-in, the right side has water outlet, the top of encloses container cylindrical shell is provided with sewage draining exit, be provided with the spiral external sealing plug that connects cylindrical shell in the lower valve base of encloses container, the end opening of cylindrical shell is provided with the spiral internal sealing plug that connects lower valve base, the top of cylindrical shell is provided with the first circular card pipe, the center of lower valve base is provided with the second circular card pipe, first silica gel sealing ring, be provided with a filter element of forming by built-in filter-core shell and multi-filtering layer in the cylindrical shell, the upper and lower of filter-core shell spreads all over the infiltration hole, the recess of filter-core shell outer is provided with second silica gel sealing ring, the lower end of filter-core shell middle part water producing pipe is provided with the 3rd silica gel sealing ring, the upper end is provided with the second circular card pipe, by the rotation lower valve base first circular card pipe and the second circular card pipe, and the 3rd the circular card pipe effectively fixedly external-compression type PPF cross filter core and filter-core shell, be provided with non-hydrophilic filter membrane filter in the filter-core shell, the KDF55 filtering layer, the top of filter-core shell is provided with external-compression type PPF and crosses filter core, the water-in in this encloses container lower valve base left side is provided with valve, loose joint, lower valve base is provided with pedestal; The water outlet of described former water is communicated with the water-in of non-hydrophilic filter membrane and external-compression type PPF filtration unit.
In the above-mentioned design, this novel employing secondary bed filtration device is with the different needs at town-dweller-rural-family and enterprises and institutions' drinking water treatment.As tap water that town and country are exceeded standard (self-control tap water), this is novel to carry out that non-hydrophilic filter membrane filters, KDF55 filters, after external-compression type PPF filters, carries out the external-compression type ultrafiltration membrance filter again and handle it.
Compare with prior art (on the basis that existing PP cellucotton filters and activated carbon filtration is handled), this novel pin has increased classification and has just washed treatment steps such as discharging, the filtration of non-hydrophilic filter membrane, KDF55 filtration, external-compression type PPF filtration, external-compression type ultrafiltration membrance filter tap water (self-control tap water) water source that exceeds standard, town and country.During this was novel, non-hydrophilic filter membrane is bacterium and other objectionable impurities in the filtered water effectively, can not make impurity along with applied pressure flows out together, and hydrophilic this protects together at last, allow whole filtration more thoroughly, purer; The KDF55 filtering layer can effectively be removed the chlorine residue in the water, remove the heavy metal of solubility, the controlling microbial growth, stop the accumulation of hard scale, deironing, reduce fluorochemical, nitrate, vitriol, can purify well water, remove chlorine, bacterium and the algae in the tap water, the filter membrane of protection ultrafiltration, reduce the mineral substance fouling and suppress microbial reproduction; External-compression type PPF cross filter core, aperture densification, evenly, filtration efficiency is up to more than 99.8%, can tackle the silt removed in the underground surface water water, iron rust, impurity, suspended substance effectively once more, thoroughly remove incrustation scale; External-compression type ultra-filtration membrane filter core can be tackled objectionable impuritiess such as the silt removed in the water, iron rust, suspended substance, colloid, bacterium, virus, larger molecular organics effectively once more, kept mineral substance and trace element to the human body beneficial simultaneously, glycol is sweet more thereby make the water quality mouthfeel.
This is novel to have following characteristics: 1, effective bacterium and other objectionable impurities in the filtered water, can not make impurity along with applied pressure flows out together, hydrophilic this protects together at last, allow whole filtration more thoroughly, purer.2, can effectively remove chlorine residue in the water; remove the heavy metal of solubility; the controlling microbial growth; stop the accumulation of hard scale; deironing, reduce fluorochemical, nitrate, vitriol, can purify well water; remove chlorine, bacterium and the algae in the tap water, the filter membrane of protection ultrafiltration, reduce the mineral substance fouling and suppress microbial reproduction.3, aperture densification, evenly, filtration efficiency is up to more than 99.8%, can tackle the silt removed in the underground surface water water, iron rust, impurity, suspended substance effectively once more, thoroughly remove incrustation scale.4, can tackle objectionable impuritiess such as the silt removed in the water, iron rust, suspended substance, colloid, bacterium, virus, larger molecular organics effectively once more, keep mineral substance and trace element to the human body beneficial simultaneously, glycol is sweet more thereby make water quality.5, filter back water quality and be better than People's Republic of China's " drinking water sanitary standard " requirement.
This novel economizer is suitable for, and no floor space is particularly suitable for town-dweller-rural-family and enterprises and institutions and uses, but the each household configuration.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the device connection diagram of this novel embodiment;
Fig. 2 is the structure iron of non-hydrophilic filter membrane shown in Figure 1 and external-compression type PPF filtration unit;
Fig. 3 is the structure iron of external-compression type ultrafiltration membrane filter device shown in Figure 1.
Embodiment
Fig. 1 illustrates the situation of this novel water treatment device, as for town-dweller-rural-family and enterprises and institutions' use, then directly tap water or self-control tap water are introduced, and are sent into through main valve 4 and valve 5 and to carry out filtration treatment in this new device, the water after the processing through valve 6 outwards output for use.
Among Fig. 2, the encloses container that non-hydrophilic filter membrane and external-compression type PPF filtration unit 1 are made up of cylindrical shell 1b and lower valve base 1a, cylindrical shell 1b is connected with lower valve base 1a spiral, the left side of this lower valve base is provided with water-in 1c, the right side has water outlet 1d, the top of encloses container cylindrical shell is provided with sewage draining exit 1e, be provided with the spiral external sealing plug 18 that connects cylindrical shell in the lower valve base of encloses container, the end opening of cylindrical shell is provided with the spiral internal sealing plug 19 that connects lower valve base, the top of cylindrical shell is provided with the first circular card pipe 28, the center of lower valve base is provided with the second circular card pipe 20, first silica gel sealing ring 21, be provided with a filter element of forming by built-in filter-core shell 23 and multi-filtering layer in the cylindrical shell, the upper and lower of filter-core shell spreads all over the infiltration hole, the recess of filter-core shell outer is provided with second silica gel sealing ring 24, the lower end of filter-core shell middle part water producing pipe is provided with the 3rd silica gel sealing ring 22, the upper end is provided with the second circular card pipe 27, by the rotation lower valve base first circular card pipe and the second circular card pipe, and the 3rd the circular card pipe effectively fixedly external-compression type PPF cross filter core and filter-core shell, be provided with non-hydrophilic filter membrane filter 25 in the filter-core shell, KDF55 filtering layer 26(granularity 0.7-0.8mm), the top of filter-core shell is provided with external-compression type PPF and crosses filter core 29(specification and be: diameter 68mm * length 166mm), and the total thickness＞0.16m of above-mentioned filtering layer; The water-in in this encloses container lower valve base left side is provided with valve 30, loose joint 31, and lower valve base is provided with pedestal 32.
Among Fig. 3, the encloses container that external-compression type ultrafiltration membrane filter device 2 is made up of cylindrical shell 2b and lower valve base 2a, cylindrical shell 2b is connected with lower valve base 2a spiral, the left side of this lower valve base is provided with water-in 2c, the right side has water outlet 2d, the top of encloses container cylindrical shell is provided with sewage draining exit 2e, be provided with the spiral external sealing plug 38 that connects cylindrical shell in the lower valve base of encloses container, the end opening of cylindrical shell is provided with the spiral internal sealing plug 39 that connects lower valve base, the center of lower valve base is provided with the circular card pipe 40 of the external-compression type ultra-filtration membrane putamina that spins, silica gel sealing ring 41, be provided with ultra-filtration membrane putamina 42 in the cylindrical shell and external-compression type ultrafiltration membrance filter core 43(specification is: diameter 66mm * length 182mm), the lower end of external-compression type ultra-filtration membrane putamina is provided with the double-screw bolt 45 that spins mutually with the circular card pipe; The lower valve base of this encloses container is provided with pedestal 46.
Referring to Fig. 1, process from water treatment, former water enters from the water-in 1c on the encloses container of non-hydrophilic filter membrane and external-compression type PPF filtration unit 1 through main valve 4 and valve 5, and after filtering, the water outlet 1d from the encloses container lower valve base flows out, (at this moment, bleed valve 7 on the sewage draining exit cuts out), again among thrust-augmenting nozzle enters external-compression type ultrafiltration membrane filter device 2, after bed filtration and ultrafiltration, become direct drinking water, outwards export through valve 6.The water outlet of above-mentioned former water is communicated with the water-in of non-hydrophilic filter membrane and external-compression type PPF filtration unit, and the water outlet of non-hydrophilic filter membrane and external-compression type PPF filtration unit is communicated with the water-in of external-compression type ultrafiltration membrane filter device.
In addition, encloses container can adopt edible stainless steel 304 materials during this was novel, to satisfy quality and hygienic requirements.
Claims (6)
1. non-hydrophilic filter membrane and ultra-filtration membrane coupled water purifying device, comprise non-hydrophilic filter membrane and external-compression type PPF filtration unit, it is characterized in that, also have external-compression type ultrafiltration membrane filter device (2): the left side of its lower valve base is provided with water-in (2c), the right side has water outlet (2d), be provided with the spiral external sealing plug (38) that connects cylindrical shell in the lower valve base of encloses container, the end opening of cylindrical shell is provided with the spiral internal sealing plug (39) that connects lower valve base, the center of lower valve base is provided with the circular card pipe (40) of the external-compression type ultra-filtration membrane putamina that spins, silica gel sealing ring (41), be provided with ultra-filtration membrane putamina (42) and external-compression type ultrafiltration membrance filter core (43) in the cylindrical shell, the lower end of external-compression type ultra-filtration membrane putamina is provided with the double-screw bolt (45) that spins mutually with the circular card pipe, and the lower valve base of encloses container is provided with pedestal (46); The water outlet of described non-hydrophilic filter membrane and external-compression type PPF filtration unit (1) is communicated with the water-in (2c) of external-compression type ultrafiltration membrane filter device (2).
2. water purifier according to claim 1, it is characterized in that, the structure of described non-hydrophilic filter membrane and external-compression type PPF filtration unit (1) is: the left side of its lower valve base is provided with water-in (1c), the right side has water outlet (1d), be provided with the spiral external sealing plug (18) that connects cylindrical shell in the lower valve base of encloses container, the end opening of cylindrical shell is provided with the spiral internal sealing plug (19) that connects lower valve base, the top of cylindrical shell is provided with the first circular card pipe (28), the center of lower valve base is provided with the second circular card pipe (20), first silica gel sealing ring (21), be provided with a filter element of forming by built-in filter-core shell (23) and multi-filtering layer in the cylindrical shell, the upper and lower of filter-core shell spreads all over the infiltration hole, the recess of filter-core shell outer is provided with second silica gel sealing ring (24), the lower end of filter-core shell middle part water producing pipe is provided with the 3rd silica gel sealing ring (22), the upper end is provided with the second circular card pipe (27), by the rotation lower valve base first circular card pipe and the second circular card pipe, and the 3rd the circular card pipe effectively fixedly external-compression type PPF cross filter core and filter-core shell, be provided with non-hydrophilic filter membrane filter (25) in the filter-core shell, KDF55 filtering layer (26), the top of filter-core shell is provided with external-compression type PPF and crosses filter core (29), the water-in in this encloses container lower valve base left side is provided with valve (30), loose joint (31), lower valve base are provided with pedestal (32); The water outlet of described former water is communicated with the water-in (1c) of non-hydrophilic filter membrane and external-compression type PPF filtration unit (1).
3. water purifier according to claim 2, it is characterized in that, the granularity of the KDF55 filtering layer in the encloses container of described non-hydrophilic filter membrane and external-compression type PPF filtration unit (1) is 0.7-0.8mm, the specification that external-compression type PPF crosses filter core is: diameter 68mm * length 166mm, total thickness of filter bed＞0.16m.
4. water purifier according to claim 1 is characterized in that, the specification of the external-compression type ultrafiltration membrance filter core in the encloses container of described external-compression type ultrafiltration membrane filter device (2) is: diameter 66mm * length 182mm.
5. water purifier according to claim 1 and 2 is characterized in that, the encloses container of described non-hydrophilic filter membrane and external-compression type PPF filtration unit (1) and external-compression type ultrafiltration membrane filter device (2) spins by cylindrical shell and lower valve base and forms.
6. water purifier according to claim 5 is characterized in that, the top of the cylindrical shell of described non-hydrophilic filter membrane and external-compression type PPF filtration unit (1) is provided with sewage draining exit (1e); The top of the cylindrical shell of described external-compression type ultrafiltration membrane filter device (2) is provided with sewage draining exit (2e).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200960578U CN201990550U (en) | 2011-04-04 | 2011-04-04 | Non-hydrophilic filter membrane and ultrafiltation membrane jointly-using water purifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200960578U CN201990550U (en) | 2011-04-04 | 2011-04-04 | Non-hydrophilic filter membrane and ultrafiltation membrane jointly-using water purifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307374A (en) * | 2014-11-07 | 2015-01-28 | 成都欧林生物科技股份有限公司 | Shell structure of filter device |
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2011
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307374A (en) * | 2014-11-07 | 2015-01-28 | 成都欧林生物科技股份有限公司 | Shell structure of filter device |
| CN104307374B (en) * | 2014-11-07 | 2016-04-13 | 成都欧林生物科技股份有限公司 | A kind of shell structure of filter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20120404 |