CN218058709U - Novel two-stage reverse osmosis double-pump double-membrane ultrapure water purifier - Google Patents
Novel two-stage reverse osmosis double-pump double-membrane ultrapure water purifier Download PDFInfo
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- CN218058709U CN218058709U CN202220978330.8U CN202220978330U CN218058709U CN 218058709 U CN218058709 U CN 218058709U CN 202220978330 U CN202220978330 U CN 202220978330U CN 218058709 U CN218058709 U CN 218058709U
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- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 59
- 239000012498 ultrapure water Substances 0.000 title claims abstract description 29
- 229910021642 ultra pure water Inorganic materials 0.000 title claims abstract description 27
- 239000012528 membrane Substances 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 120
- 229910001868 water Inorganic materials 0.000 claims abstract description 119
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 238000011033 desalting Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 8
- 238000000108 ultra-filtration Methods 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 238000011001 backwashing Methods 0.000 claims description 4
- 229920000388 Polyphosphate Polymers 0.000 claims description 2
- 239000001205 polyphosphate Substances 0.000 claims description 2
- 235000011176 polyphosphates Nutrition 0.000 claims description 2
- 238000010612 desalination reaction Methods 0.000 abstract description 8
- 238000000746 purification Methods 0.000 abstract description 6
- 150000002500 ions Chemical class 0.000 description 11
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- 244000060011 Cocos nucifera Species 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229910001297 Zn alloy Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 2
- 238000013497 data interchange Methods 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000001728 nano-filtration Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
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- 238000009395 breeding Methods 0.000 description 1
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- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
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- 239000010408 film Substances 0.000 description 1
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- 229910001385 heavy metal Inorganic materials 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a novel doublestage reverse osmosis double pump double membrane ultrapure water ware, including leading precision filter, the delivery port of putting precision filter connect the multiple stage filtration core, the delivery port of multiple stage filtration core connect first order reverse osmosis filter, second level reverse osmosis filter, first order reverse osmosis filter and second level reverse osmosis filter between be equipped with middle water tank, second level reverse osmosis filter's delivery port intercommunication water purification case, the one end of water purification case connect the filter, EDI electric desalination system is connected to the other end, EDI electric desalination headtotail ion exchanger, ion exchanger connect ultraviolet sterilizer, ultraviolet sterilizer connect filter two. The utility model has the advantages of: the filtered water generates pure water through the filter, and the pure water is suitable for pure water occasions, and when the pure water passes through the EDI electric desalting system, the ion exchanger, the ultraviolet sterilizer and the filter II, ultrapure water is generated.
Description
Technical Field
The utility model relates to the field of water treatment equipment, in particular to a novel two-stage reverse osmosis double-pump double-membrane ultrapure water purifier.
Background
Ultrapure water is water in which a conductive medium in water is almost completely removed and colloidal substances, gases, and organic substances that do not dissociate in water are removed to a low degree. Ultrapure water is an indispensable and very important raw material for modern industries. In various fields, such as the integrated circuit industry for cleaning of semiconductor raw materials and vessels used, the preparation of photolithographic masks, the fabrication of other solid state electronic devices, thick and thin film circuits, printed circuits, vacuum tubes, etc., are in widespread use.
The common pure water or ultrapure water equipment has a complex structure, incomplete water treatment, secondary pollution of the ultrapure water machine, and incapability of meeting the manufacturing requirement of ultrapure water and ensuring the quality requirement of ultrapure water.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem, and provides a novel double-stage reverse osmosis double-pump double-membrane ultrapure water purifier.
In order to solve the technical problem, the utility model provides a technical scheme does: a novel double-stage reverse osmosis double-pump double-membrane ultrapure water purifier comprises a pre-precision filter, wherein a water outlet of the pre-precision filter is connected with a multi-stage filter element, the multi-stage filter element is connected end to end, a water outlet of the multi-stage filter element is connected with a first-stage reverse osmosis filter and a second-stage reverse osmosis filter, an intermediate water tank is arranged between the first-stage reverse osmosis filter and the second-stage reverse osmosis filter, a water outlet of the second-stage reverse osmosis filter is communicated with a pure water tank, one end of the pure water tank is connected with a filter, the other end of the pure water tank is connected with an EDI (electronic data interchange) electric desalting system, the EDI electric desalting system is connected with an ion exchanger, the ion exchanger is connected with an ultraviolet sterilizer, and the ultraviolet sterilizer is connected with a second filter;
the device is characterized in that a water return pipe is arranged between the front precision filter and the multistage filter element, between the multistage filter element and the first stage reverse osmosis filter, and a sampling pipe and a PH detection device are arranged on the water return pipe.
Furthermore, the preposed precision filter is a shunting type backwashing scale inhibition filter, and a double phosphate column and a high-precision filtering membrane are arranged in the preposed precision filter.
Furthermore, the multistage filter element sequentially comprises a PPF fiber filter element, a KDF composite filter element, a softening functional filter element and a UF ultrafiltration depth treatment filter element.
Furthermore, the second-stage reverse osmosis filter is communicated with the first-stage reverse osmosis filter through a connecting pipe, the connecting pipe is provided with a sampling pipe and a PH detection device, and the water flowing inside is second pure water.
Furthermore, a pure water column and an ultra-pure water column are arranged in the ion exchanger.
Compared with the prior art, the utility model the advantage lie in: a water return pipe between the front precision filter and the multi-stage filter element and between the multi-stage filter element and the first-stage reverse osmosis filter is provided with a sampling pipe and a PH detection device, so that detection can be carried out after primary filtration, and return water can be filtered again when detection is unqualified, so that the purity of water filtration is ensured; set up first order reverse osmosis filter and second level reverse osmosis filter, filter more thoroughly, produce the pure water through the filter this moment, be applicable to the pure water occasion, produce ultrapure water through EDI electric desalination system, ion exchanger, ultraviolet sterilizer, two filters when the pure water.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
As shown in the figure: 1. a pre-precision filter; 2. a multi-stage filter element; 3. a first stage reverse osmosis filter; 4. a second stage reverse osmosis filter; 5. an intermediate water tank; 6. a pure water tank; 7. a filter; 8. an EDI electric desalination system; 9. an ion exchanger; 10. an ultraviolet sterilizer; 11. a second filter; 12. a water return pipe; 13. a connecting pipe; 901. a column of pure water; 902. an ultra-pure water column; 1201. a sampling tube; 1202. and a PH detection device.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model provides a novel super water purifier of doublestage reverse osmosis double pump double membrane, includes leading precision filter 1, its characterized in that: the device comprises a front precision filter 1, a water outlet of the front precision filter 1 is connected with a multi-stage filter element 2, the multi-stage filter elements 2 are connected end to end, a water outlet of the multi-stage filter element 2 is connected with a first-stage reverse osmosis filter 3 and a second-stage reverse osmosis filter 4, an intermediate water tank 5 is arranged between the first-stage reverse osmosis filter 3 and the second-stage reverse osmosis filter 4, a water outlet of the second-stage reverse osmosis filter 4 is communicated with a pure water tank 6, one end of the pure water tank 6 is connected with a filter 7, the other end of the pure water tank is connected with an EDI (electronic data interchange) desalination system 8, the EDI desalination system 8 is connected with an ion exchanger 9, the ion exchanger 9 is connected with an ultraviolet sterilizer 10, and the ultraviolet sterilizer 10 is connected with a second filter 11;
a water return pipe 12 is arranged between the front precision filter 1 and the multistage filter core 2, and between the multistage filter core 2 and the first stage reverse osmosis filter 3, and a sampling pipe 1201 and a PH detection device 1202 are arranged on the water return pipe 12.
The preposed precision filter 1 is a divided-flow back-washing scale-inhibition filter, and a polyphosphate column and a high-precision filtering membrane are arranged in the preposed precision filter.
The multistage filter element 2 sequentially comprises a PPF fiber filter element, a KDF composite filter element, a softening functional filter element and a UF ultrafiltration depth treatment filter element.
The second-stage reverse osmosis filter 4 is communicated with the first-stage reverse osmosis filter 3 through a connecting pipe 13, the connecting pipe 13 is provided with a sampling pipe 1201 and a PH detection device 1202, and the water flowing inside is second pure water.
A pure water column 901 and an ultra-pure water column 902 are arranged in the ion exchanger 9.
A preparation process of ultrapure water comprises the following steps:
s1: pretreatment of
A precision filter is used for pretreating a water source, impurities in the water source are filtered, scale removal is prevented, pretreated water is detected, a return pipe is used for carrying out pretreatment again when the water is unqualified, and the water enters the next treatment system when the water is qualified;
the filtering of the particulate impurities in the water is a gram of the problems of red water, black water, yellow water, scale and the like;
the food-grade double phosphate (selected) effectively prevents scale, repairs rusted metal pipelines and removes the scale in the water container;
the silver-loaded stainless steel high-density, high-precision and high-strength filtering membrane can be permanently used without replacement, so that the material cost is saved;
the back washing is simple and easy to implement, no tool is needed, the bottom valve is opened, the trapped impurities are washed out, and the system operation is not influenced;
s2: multi-stage filter element
The filter element comprises a PPF fiber filter element, a KDF composite filter element, a softening functional filter element and a UF ultrafiltration advanced treatment filter element in sequence, wherein the filter element of the PPF fiber filter element has the filter precision of 5 mu m and can effectively filter out particle impurities such as silt, rust, algae and the like in a source.
The KDF composite filter element is filled with high-purity copper-zinc alloy and coconut shell activated carbon filter materials;
the high-purity copper-zinc alloy mainly removes more than 95 percent of residual chlorine (residual chlorine and hypochlorous acid products and the like generated by chlorination of tap water) in water, removes more than 90 percent of heavy metal ions such as lead, mercury, copper, nickel, cadmium and the like in the water, removes harmful substances such as hexavalent chromium, arsenic and the like in the water, inhibits the breeding of bacteria and fungi, and has certain scale inhibition effect and is internally provided with a polypropylene (PP) hollow fiber membrane type ultrafiltration membrane;
the coconut shell activated carbon filter material has the characteristics of good wear resistance, high adsorption performance, long service life and the like, has excellent efficacy on the manufacture of purified water and high-purity water, and is an ideal material for thermoelectric equipment, beer equipment, beverage equipment and high-purity water equipment;
the softening functional filter element mainly reduces the water hardness, the exchange capacity of the bleached standard resin in water is large, the service life of the bleached standard resin is 50 percent longer than that of domestic 001 × 7 cation resin, the service life of reverse osmosis can be prolonged, and the desalination rate of RO water is improved;
UF ultrafiltration depth treatment filter element; the polypropylene (PP) hollow fiber membrane type ultrafiltration membrane mainly removes organic matters in source water, can protect reverse osmosis and has good effect of reducing TOC;
detecting the filtered water, filtering the water again by using a return pipe if the water is unqualified, and entering the next treatment system if the water is qualified;
s3: the first stage reverse osmosis filter and the second stage reverse osmosis filter
After passing through the first-stage reverse osmosis filter, the wastewater enters an intermediate water tank, the pH value of the wastewater is adjusted in the intermediate water tank, and then the wastewater enters the second-stage reverse osmosis filter,
a plurality of water return pipelines are arranged on the first-stage reverse osmosis filter and the second reverse osmosis filter, and are used for filtering water back for multiple times respectively, at the moment, water discharged from the second reverse osmosis filter is second pure water, enters a pure water tank after being detected to be qualified, and returns to the first reverse osmosis filter to be filtered if the water is unqualified;
s4: the water in the pure water tank passes through a filter to obtain pure water;
water in the pure water tank enters an EDI electric desalting system through a pressure pump to carry out continuous electric desalting;
the water that reverse osmosis membrane came out is pure water and dense water, and the dense water is directly arranged to the waste disposal ditch the inside, and RO pure water generally is acid water, and the pure water rethread PH adjusting device makes this alkaline water of the pH value of pure water after getting into middle water tank. The adjusted pure water is matched with a self-absorption booster pump to push a second-stage reverse osmosis membrane again, and the first-stage RO pure water directly enters a non-contact air fully-sealed sterile pressure water tank;
the EDI electric desalination system takes the water quality of the outlet water of reverse osmosis as raw water, and the EDI new technology can replace the traditional ion exchange device and can continuously produce the ultrapure water with the density of more than 10-15M omega cm.
Continuous electric desalting is to regenerate resin by using electricity instead of acid and alkali, so the method is very economical and practical and can obtain stable pure water with limited energy consumption. Has the advantages of stable effluent quality, low operating cost, convenient operation and management, small occupied area and the like;
s5: ion exchanger and purification and ultra-purification system
The ion exchanger softens, removes alkali and removes salt for water; setting a purifying column and an ultra-purifying column, wherein UP6150 adopted by the purifying column is mixed bed resin, and the ultra-purifying column is polishing resin special for Dow UPW-450 ultra-pure water;
the ion exchange resin is used for filtering cations in the inlet water by utilizing H + exchange, the anion in the inlet water is filtered by utilizing OH-exchange, H + and OH-displaced in the resin are combined to generate H2O, UP6150 adopted by a purification column is mixed bed resin, a Tao's UPW-450 ultrapure water special polishing resin is adopted by an ultrapure column, and the water production resistivity can reach 18.2M omega.
S6: ultraviolet sterilization device
The dual-wavelength ultraviolet sterilization device is adopted for sterilization, the effective UV wavelength is UV-185/254nm, and the service life can reach 9000 hours.
S7: filtration and purification
And finally purifying the water source by using an NF nanofiltration device and a 0.2 micron terminal microfiltration device to obtain ultrapure water.
NF nanofiltration device: the molecular weight cut-off is 5000DaIton, and the service life can be as long as 2-3 years;
the double-layer cellulose acetate film with the thickness of 0.45 mu m +0.2 mu m is prepared, does not contain surfactant and has extremely low protein adsorption. Eight exhaust holes with PTFE membranes are designed at the upper end of the filter, so the filtering speed is very high. Can be sterilized at high temperature and high pressure of 121 ℃, and can effectively filter bacteria in the pipeline.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. The utility model provides a novel super water purifier of doublestage reverse osmosis double pump double membrane, includes leading precision filter (1), its characterized in that: the device comprises a front precision filter (1), a water outlet of the front precision filter (1) is connected with a multi-stage filter element (2), the multi-stage filter element (2) is connected end to end, a water outlet of the multi-stage filter element (2) is connected with a first-stage reverse osmosis filter (3) and a second-stage reverse osmosis filter (4), an intermediate water tank (5) is arranged between the first-stage reverse osmosis filter (3) and the second-stage reverse osmosis filter (4), a water outlet of the second-stage reverse osmosis filter (4) is communicated with a water tank (6), one end of a pure water tank (6) is connected with a filter (7), the other end of the pure water tank is connected with an EDI electric desalting system (8), the EDI electric desalting system (8) is connected with an ion exchanger (9), the ion exchanger (9) is connected with an ultraviolet sterilizer (10), and the ultraviolet sterilizer (10) is connected with a second filter (11);
a water return pipe (12) is arranged between the front precision filter (1) and the multistage filter element (2) and between the multistage filter element (2) and the first stage reverse osmosis filter (3), and a sampling pipe (1201) and a PH detection device (1202) are arranged on the water return pipe (12).
2. The novel two-stage reverse osmosis double-pump double-membrane ultrapure water purifier according to claim 1, characterized in that: the preposed precision filter (1) is a split-flow back-washing scale-inhibition filter, and a polyphosphate column and a high-precision filtering membrane are arranged in the preposed precision filter.
3. The novel two-stage reverse osmosis double-pump double-membrane ultrapure water purifier according to claim 1, characterized in that: the multistage filter element (2) sequentially comprises a PPF fiber filter element, a KDF composite filter element, a softening functional filter element and a UF ultrafiltration depth treatment filter element.
4. The novel double-stage reverse osmosis double-pump double-membrane ultrapure water purifier according to claim 1, characterized in that: the second-stage reverse osmosis filter (4) is communicated with the first-stage reverse osmosis filter (3) through a connecting pipe (13), the connecting pipe (13) is provided with a sampling pipe (1201) and a PH detection device (1202), and the water flowing inside is second pure water.
5. The novel two-stage reverse osmosis double-pump double-membrane ultrapure water purifier according to claim 1, characterized in that: a pure water column (901) and an ultra-pure water column (902) are arranged in the ion exchanger (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220978330.8U CN218058709U (en) | 2022-04-26 | 2022-04-26 | Novel two-stage reverse osmosis double-pump double-membrane ultrapure water purifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220978330.8U CN218058709U (en) | 2022-04-26 | 2022-04-26 | Novel two-stage reverse osmosis double-pump double-membrane ultrapure water purifier |
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| Publication Number | Publication Date |
|---|---|
| CN218058709U true CN218058709U (en) | 2022-12-16 |
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| CN202220978330.8U Active CN218058709U (en) | 2022-04-26 | 2022-04-26 | Novel two-stage reverse osmosis double-pump double-membrane ultrapure water purifier |
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