CN104437086A - Reverse osmosis purification unit and reverse osmosis purification system - Google Patents
Reverse osmosis purification unit and reverse osmosis purification system Download PDFInfo
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- CN104437086A CN104437086A CN201310426439.6A CN201310426439A CN104437086A CN 104437086 A CN104437086 A CN 104437086A CN 201310426439 A CN201310426439 A CN 201310426439A CN 104437086 A CN104437086 A CN 104437086A
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- 238000001223 reverse osmosis Methods 0.000 title abstract description 24
- 238000000746 purification Methods 0.000 title abstract description 12
- 238000001764 infiltration Methods 0.000 claims description 173
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 19
- 230000008676 import Effects 0.000 claims description 19
- 230000037361 pathway Effects 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000000243 solution Substances 0.000 abstract description 26
- 238000011084 recovery Methods 0.000 abstract description 14
- 239000011550 stock solution Substances 0.000 abstract description 10
- 239000012528 membrane Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- 239000012141 concentrate Substances 0.000 description 16
- 239000012530 fluid Substances 0.000 description 14
- 230000000149 penetrating effect Effects 0.000 description 10
- 244000261422 Lysimachia clethroides Species 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000012466 permeate Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000009991 scouring Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a reverse osmosis purification unit which comprises a plurality of reverse osmosis filter elements, wherein a concentrated solution outlet of at least one reverse osmosis filter element is connected with a stock solution inlet of the other reverse osmosis filter element. When the reverse osmosis purification unit works, the concentrated solution discharged by at least one reverse osmosis filter element enters another reverse osmosis filter element as the stock solution to be further separated. Obviously, in the reverse osmosis purification unit, the concentrated solution directly discharged after the stock solution is separated is reduced, and the utilization rate of the stock solution is further improved. Therefore, the reverse osmosis purification unit has high recovery rate. In addition, when the reverse osmosis purification unit comprises a fixed quantity of reverse osmosis filter elements, the number of the branch flow of the stock solution with the same flow rate is reduced, the liquid flow rate per unit time on the reverse osmosis membrane of each reverse osmosis filter element is increased, and the service life of the reverse osmosis filter elements is prolonged. The invention also discloses a reverse osmosis purification system comprising the reverse osmosis purification unit.
Description
Technical field
The present invention relates to purifier technical field, particularly relate to a kind of counter-infiltration clean unit.The invention still further relates to a kind of counter-infiltration cleaning system comprising above-mentioned counter-infiltration clean unit.
Background technology
Counter-infiltration purification techniques is a kind of is motive force with pressure differential, the UF membrane operation of solvent is isolated from solution, this technology applies pressure to the stoste of reverse osmosis membrane side, when pressure exceedes its osmotic pressure, solvent in stoste can make inverse osmosis against the direction of naturally osmotic, thus the low-pressure side of reverse osmosis membrane obtain through solvent, i.e. penetrating fluid, high-pressure side obtains the solution concentrated, i.e. concentrate.The core work parts of this technology are counter-infiltration clean unit.
As shown in Figure 1, above-mentioned counter-infiltration clean unit mainly comprises booster pump 11, counter-infiltration filter core 12 and flow control valve 13, and this counter-infiltration filter core 12 has stoste entrance, concentrated solution outlet and permeate outlet.The counter-infiltration clean unit generally used at present generally includes multiple counter-infiltration filter core 12, multiple counter-infiltration filter core 12 adopts connected mode in parallel, namely, the stoste entrance of all counter-infiltration filter cores 12 is connected with same stoste service, permeate outlet is connected with same penetrating fluid output channel, and concentrated solution outlet is connected with same waste collection pipeline.Thus, stoste in stoste service, through shunting, enters in each counter-infiltration filter core 12, enters penetrating fluid output channel after treatment simultaneously, and the concentrate in each counter-infiltration filter core 12 is disposed in waste collection pipeline all simultaneously, and then complete counter-infiltration evolutional operation.
But when multiple counter-infiltration filter core 12 adopts connected mode in parallel, each counter-infiltration filter core 12 all can discharge more concentrate, and cause the utilization rate of stoste lower, namely the rate of recovery of counter-infiltration clean unit is lower.In addition, the stoste of equal flow is shunted to each counter-infiltration filter core 12, and the unit interval fluid flow on the reverse osmosis membrane of each counter-infiltration filter core 12 is less, causes the service life of counter-infiltration filter core 12 shorter.
In sum, how to solve the problem that the rate of recovery of counter-infiltration clean unit is lower, become the technical barrier that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
The object of this invention is to provide a kind of counter-infiltration clean unit, with the problem that the rate of recovery solving counter-infiltration clean unit is lower.Another object of the present invention is to provide a kind of counter-infiltration cleaning system comprising above-mentioned counter-infiltration clean unit.
To achieve these goals, the invention provides following technical scheme:
A kind of counter-infiltration clean unit, comprise multiple counter-infiltration filter core, the concentrated solution outlet of counter-infiltration filter core described at least one is connected with the stoste import of counter-infiltration filter core described in another.
Preferably, in above-mentioned counter-infiltration clean unit, this counter-infiltration clean unit has at least one series-parallel connection filter core group, multiple described counter-infiltration filter core in described series-parallel connection filter core group is connected to form at least one parallel filter core group and follow-up filter core that at least one is connected with described parallel filter core group, described parallel filter core group comprises at least two described counter-infiltration filter cores, the stoste import of at least two described counter-infiltration filter cores is all communicated in same input duct, and the concentrated solution outlet of at least two described counter-infiltration filter cores is all communicated in same described concentrated solution outlet pipeline, the stoste import of described follow-up filter core is connected with the concentrated solution outlet pipeline of described parallel filter core group.
Preferably, in above-mentioned counter-infiltration clean unit, connectionless point between the described stoste import of described follow-up filter core and the described input duct of described parallel filter core group.
Preferably, in above-mentioned counter-infiltration clean unit, described parallel filter core group is two or more, and in adjacent two described parallel filter core groups, the described concentrated solution outlet pipeline of one is connected with the feed pathway of another one.
Preferably, in above-mentioned counter-infiltration clean unit, described parallel filter core group comprises two described counter-infiltration filter cores.
Preferably, in above-mentioned counter-infiltration clean unit, described series-parallel connection filter core group is two, and the described feed pathway of two described series-parallel connection filter core groups all arranges booster pump.
A kind of counter-infiltration cleaning system, the counter-infiltration clean unit comprising preposition filter core, rearmounted filter core and be arranged between described preposition filter core and described rearmounted filter core, described counter-infiltration clean unit is the counter-infiltration clean unit described in above-mentioned any one.
Preferably, in above-mentioned counter-infiltration cleaning system, described preposition filter core comprises the PP connected successively cotton filter core, granular activated carbon filter core and extruded activated carbon filter core.
Preferably, in above-mentioned counter-infiltration cleaning system, described rearmounted filter core is active carbon filter core.
In technique scheme, counter-infiltration clean unit provided by the invention comprises multiple counter-infiltration filter core, and the concentrated solution outlet of at least one counter-infiltration filter core is connected with the stoste import of another counter-infiltration filter core.During the work of this counter-infiltration clean unit, the concentrate that at least one counter-infiltration filter core is discharged will enter in another counter-infiltration filter core as stoste, further be separated.Obviously, compared to the content introduced in background technology, in counter-infiltration clean unit provided by the invention, the concentrate of stoste directly discharge after being separated reduces to some extent, and then improves the utilization rate of stoste.Therefore, the rate of recovery of this counter-infiltration clean unit is higher.
In addition, when above-mentioned counter-infiltration clean unit comprises quantitative counter-infiltration filter core, the shunting number of the stoste of equal flow will reduce, and the unit interval fluid flow on the reverse osmosis membrane of each counter-infiltration filter core increases thereupon, and then extend the service life of counter-infiltration filter core.
Because above-mentioned counter-infiltration clean unit has above-mentioned technique effect, the counter-infiltration cleaning system comprising this counter-infiltration clean unit also should have corresponding technique effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in the embodiment of the present invention or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of traditional counter-infiltration clean unit;
The structural representation of the counter-infiltration clean unit that Fig. 2 provides for the embodiment of the present invention;
Experimental curve diagram when Fig. 3 is for adopting the counter-infiltration clean unit that provides of the embodiment of the present invention to carry out Water warfare;
The structural representation of the another kind of counter-infiltration clean unit that Fig. 4 provides for the embodiment of the present invention;
The connection layout of a kind of counter-infiltration clean unit in counter-infiltration cleaning system that Fig. 5 provides for the embodiment of the present invention;
The connection layout of another counter-infiltration clean unit in counter-infiltration cleaning system that Fig. 6 provides for the embodiment of the present invention.
In upper Fig. 1-6:
Dotted line is concentrate flow duct, and heavy line is penetrating fluid flow duct;
Booster pump 11, counter-infiltration filter core 12, flow control valve 13;
Booster pump 21, counter-infiltration filter core 22, flow control valve 23;
Water supply pipe 31, PP cotton filter core 32, low tension switch 33, granular activated carbon filter core 34, extruded activated carbon filter core 35, entering water electromagnetic valve 36, flowmeter 37, scouring electromagnetic valve 38, high-voltage switch gear 39, active carbon filter core 40, gooseneck faucet 41, pressure pot 42.
Detailed description of the invention
Core of the present invention is to provide a kind of counter-infiltration clean unit, with the problem that the rate of recovery solving counter-infiltration clean unit is lower.Another core of the present invention is to provide a kind of counter-infiltration cleaning system comprising above-mentioned counter-infiltration clean unit.
In order to make those skilled in the art understand technical scheme provided by the invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in figures 2-6, the counter-infiltration clean unit that the embodiment of the present invention provides comprises booster pump 21, multiple counter-infiltration filter core 22 and connects the pipeline of multiple counter-infiltration filter core 22, wherein, each counter-infiltration filter core 22 all comprises a stoste import, a concentrated solution outlet and a permeate outlet, permeate outlet is communicated with non-return valve, and this non-return valve is used for preventing penetrating fluid to be back in counter-infiltration filter core 22.Above-mentioned stoste import is used for being connected with stoste service, and concentrated solution outlet is for discharging the concentrate after separation, and permeate outlet is used for being connected with penetrating fluid output channel, with this, penetrating fluid is delivered to specified location.The key reconstruction point of the embodiment of the present invention is, the concentrated solution outlet of at least one counter-infiltration filter core 22 is connected with the stoste import of another counter-infiltration filter core 22.Particularly, the mode that all counter-infiltration filter cores 22 are connected successively can be adopted, namely in adjacent two counter-infiltration filter cores 22, the concentrated solution outlet of one and the stoste inlet communication of another one; Also a part of counter-infiltration filter core 22 can be adopted to connect successively and to form series connection filter core group, another part counter-infiltration filter core 22 is parallel to the mode at above-mentioned series connection filter core group two ends, namely the stoste import of this part counter-infiltration filter core 22 and the stoste inlet communication of filter core group of connecting are in same stoste service, and its concentrated solution outlet is communicated in same concentrate collection conduit with the concentrated solution outlet of filter core group of connecting.Certainly, also can adopt other connected modes between multiple counter-infiltration filter core 22, not limit to and above-mentioned two kinds of modes.
During the work of this counter-infiltration clean unit, the concentrate that at least one counter-infiltration filter core 22 is discharged will enter in another counter-infiltration filter core 22 as stoste, further be separated.Obviously, compared to the content introduced in background technology, in the counter-infiltration clean unit that the embodiment of the present invention provides, the concentrate of stoste directly discharge after being separated reduces to some extent, and then improves the utilization rate of stoste.Therefore, the rate of recovery of this counter-infiltration clean unit is higher.
In addition, when above-mentioned counter-infiltration clean unit comprises quantitative counter-infiltration filter core 22, the shunting number of the stoste of equal flow will reduce, and the unit interval fluid flow on the reverse osmosis membrane of each counter-infiltration filter core 22 increases thereupon, and then extend the service life of counter-infiltration filter core 22.
In further technical scheme, the counter-infiltration clean unit that the embodiment of the present invention provides has at least one series-parallel connection filter core group, multiple counter-infiltration filter cores 22 in this series-parallel connection filter core group are connected to form at least one parallel filter core group and follow-up filter core that at least one is connected with this parallel filter core group, this parallel filter core group comprises at least two counter-infiltration filter cores 22, the stoste import of all counter-infiltration filter cores 22 in it is all communicated in same input duct, and the concentrated solution outlet of all counter-infiltration filter cores 22 in it is all communicated in same concentrated solution outlet pipeline, the stoste import of follow-up filter core is connected with the concentrated solution outlet pipeline of this parallel filter core group.Particularly, as shown in Figure 4, the concentrated solution outlet of a part of counter-infiltration filter core 22 in parallel filter core group is connected with the stoste import of another part counter-infiltration filter core 22 in parallel filter core group, makes a part of counter-infiltration filter core 22 in parallel filter core group have two-way input.In this structure, each branch of series-parallel connection filter core group only connects a counter-infiltration filter core 22, enter in other counter-infiltration filter cores 22 after the concentrate that these counter-infiltration filter cores 22 are discharged collects, and then ensure that the concentrate that major part is discharged as the stoste of other counter-infiltration filter cores 22, can strengthen above-mentioned technique effect with this.
Further, connectionless point between the stoste import of above-mentioned follow-up filter core and the input duct of parallel filter core group, that is, the stoste import of this follow-up filter core only has a road input, and this road is input as the concentrated solution outlet pipeline of parallel filter core group.Obviously, this scheme decreases the burden of follow-up filter core, and the working life of follow-up filter core is extended to some extent.
In order to reduce the shunting number of stoste as far as possible, utilize the concentrate of discharge largely simultaneously, parallel filter core group can be set to two or more, in adjacent two parallel filter core groups, the concentrated solution outlet pipeline of one is connected with the input duct of another one.After so arranging, when having quantitative counter-infiltration filter core 22, along with the quantity of parallel filter core group increases, the shunting number of stoste obviously reduces; Meanwhile, the concentrate that each parallel filter core group is discharged still enters in the stoste import of parallel filter core group adjacent with it, and then achieves the above object.
According to the general work environment of counter-infiltration clean unit, consider production cost, the parallel filter core group that the embodiment of the present invention provides comprises two counter-infiltration filter cores 22, the counter-infiltration filter core 22 of connecting with this parallel filter core group is set to one, and the concentrated solution outlet of this counter-infiltration filter core 22 is connected with flow control valve 23.Under general purification demand, adopt two counter-infiltration filter cores 22 to form parallel filter core group, the unit interval fluid flow of each counter-infiltration filter core 22 can be ensured largely, ensure the stoste amount of other counter-infiltration filter cores 22 simultaneously, reach the higher rate of recovery.
Compared with a kind of scheme that traditional scheme shown in Fig. 1 and the embodiment of the present invention shown in Fig. 2 are provided, two schemes components and parts used are identical, and both work under identical operating pressure, assuming that the rate of recovery of single counter-infiltration filter core 22 under above-mentioned operating pressure is 30%, stock solution flow is a, the rate of recovery of counter-infiltration clean unit that so embodiment of the present invention provides is: (0.3+0.7*0.3) * 100%=51%, and the rate of recovery of counter-infiltration clean unit in traditional scheme is 30%; In the reverse osmosis units that the embodiment of the present invention provides, the stock solution flow flowing through each counter-infiltration filter core 22 in parallel filter core group is 0.5a, be then 0.7a by the stock solution flow of the counter-infiltration filter core 22 of connecting with this parallel filter core group, and in traditional scheme, be 0.33a by the stock solution flow of each counter-infiltration filter core 22.Visible, in the embodiment of the present invention, large all than in traditional scheme of the stock solution flow of each counter-infiltration filter core 22, and stoste flow velocity is relatively large, and then counter-infiltration filter core 22 is rinsed fully, effectively extend the service life of counter-infiltration filter core 22.
Carry out Water warfare to adopt above-mentioned counter-infiltration clean unit to test, the empirical curve obtained as shown in Figure 3, analyze this empirical curve can draw: under the condition that raw water flow is certain, the pure water flow of the scheme that the embodiment of the present invention provides is all the time higher than traditional scheme, namely the dense water discharged is fewer than traditional scheme, the rate of recovery is higher, and in the present invention program, rate of recovery measured data is 52%, and in traditional scheme, rate of recovery measured data is 31%; For counter-infiltration filter core 22, its life-span expires few (the TDS(TotalDissolved Solids of front and back pure water water quality inferiority, the total solids content be dissolved in the water) value change is not quite, be less than 10), the life-span of counter-infiltration filter core 22 sets with product discharge by producing water inventory, can judge that counter-infiltration filter core 22 life-span expires, as shown in Figure 3 when producing discharge and decaying to setting value, when counter-infiltration filter core 22 life-span expires, the product water inventory of the present invention program is obviously greater than traditional scheme.
Because counter-infiltration clean unit is dynamically working with pressure differential, therefore, under purification requires higher operating mode, series-parallel connection filter core group can be set to two, and the feed pathway of two series-parallel connection filter core groups all arranges booster pump 21.Visible, the program all arranges booster pump 21 in each series-parallel connection filter core group front end, to ensure the pressure differential in each series-parallel connection filter core group, and then improves the filtering accuracy of counter-infiltration clean unit.Certainly, the quantity of above-mentioned series-parallel connection filter core group also can be two or more, and accordingly, the quantity of booster pump 21 also can be two or more.
The counter-infiltration clean unit that the counter-infiltration cleaning system that the embodiment of the present invention provides comprises preposition filter core, rearmounted filter core and is arranged between preposition filter core and rearmounted filter core, the counter-infiltration clean unit of this counter-infiltration clean unit described by above-mentioned either a program.Because above-mentioned counter-infiltration clean unit has above-mentioned technique effect, the counter-infiltration cleaning system comprising this counter-infiltration clean unit also should have corresponding technique effect, repeats no more herein.
As shown in Figures 4 and 5, be used for Water warfare for above-mentioned counter-infiltration cleaning system, this counter-infiltration cleaning system comprises water supply pipe 31, preposition filter core, low tension switch 33, entering water electromagnetic valve 36, flowmeter 37, scouring electromagnetic valve 38, high-voltage switch gear 39, rearmounted filter core, gooseneck faucet 41 and pressure pot 42.Pipeline between water supply pipe 31 and counter-infiltration clean unit is stoste service, and preposition filter core, high-voltage switch gear 39, low tension switch 33, entering water electromagnetic valve 36 and flowmeter 37 are all arranged on this stoste service; Penetrating fluid output channel and concentrate collection conduit is connected after counter-infiltration clean unit, rearmounted filter core, gooseneck faucet 41 and pressure pot 42 are all arranged on penetrating fluid output channel, and flow control valve 23, scouring electromagnetic valve 38 and high-voltage switch gear 39 are all arranged in concentrate collection conduit.Wherein: low tension switch 33 and high-voltage switch gear 39 are all for detecting the pressure of counter-infiltration cleaning system; Entering water electromagnetic valve 36 is for controlling the break-make of stoste service; Scouring electromagnetic valve 38 is for realizing the pre-washing function of system; Flow control valve 23 is for regulating the flow of each pipeline; Flowmeter 37 is for adding up the uninterrupted on pipeline; Pressure pot 42 is for storing the penetrating fluid of output.
During the work of this counter-infiltration cleaning system, when low tension switch 33 has detected water, entering water electromagnetic valve 36 and booster pump 21 have been opened, and running water through preposition filter core, and enters counter-infiltration clean unit by after booster pump 21 supercharging; After the pure water of counter-infiltration evolution unit output flows through rearmounted filter core through gooseneck faucet 41 for user; When gooseneck faucet 41 is closed, pure water flows to pressure pot 42 and stores; When high-voltage switch gear 39 detects that water expires signal, complete machine is shut down; When opening gooseneck faucet 41, water in pressure pot 42 flows out, pressure drop, and when high-voltage switch gear 39 detects starting pressure, complete machine restarts.
In specific embodiments; the value volume and range of product of preposition filter core can be selected flexibly; the embodiment of the present invention provides a kind of preferred selection mode; particularly; this preposition filter core comprises the PP connected successively cotton filter core 32, granular activated carbon filter core 34 and extruded activated carbon filter core 35, to obtain the higher preposition filter core of filtering accuracy.Because the work load of rearmounted filter core is relatively little, its filtering accuracy requires relatively low, and the rearmounted filter core that therefore embodiment of the present invention provides is chosen as active carbon filter core 40, controls cost while raising filtering accuracy with this.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a counter-infiltration clean unit, comprises multiple counter-infiltration filter core, it is characterized in that, the concentrated solution outlet of counter-infiltration filter core described at least one is connected with the stoste import of counter-infiltration filter core described in another.
2. counter-infiltration clean unit according to claim 1, it is characterized in that, this counter-infiltration clean unit has at least one series-parallel connection filter core group, multiple described counter-infiltration filter core in described series-parallel connection filter core group is connected to form at least one parallel filter core group and follow-up filter core that at least one is connected with described parallel filter core group, described parallel filter core group comprises at least two described counter-infiltration filter cores, the stoste import of at least two described counter-infiltration filter cores is all communicated in same input duct, and the concentrated solution outlet of at least two described counter-infiltration filter cores is all communicated in same described concentrated solution outlet pipeline, the stoste import of described follow-up filter core is connected with the concentrated solution outlet pipeline of described parallel filter core group.
3. counter-infiltration clean unit according to claim 2, is characterized in that, connectionless point between the described stoste import of described follow-up filter core and the described input duct of described parallel filter core group.
4. counter-infiltration clean unit according to claim 3, is characterized in that, described parallel filter core group is two or more, and in adjacent two described parallel filter core groups, the described concentrated solution outlet pipeline of one is connected with the feed pathway of another one.
5. counter-infiltration clean unit according to claim 3, is characterized in that, described parallel filter core group comprises two described counter-infiltration filter cores.
6. the counter-infiltration clean unit according to any one of claim 2-5, is characterized in that, described series-parallel connection filter core group is two, and the described feed pathway of two described series-parallel connection filter core groups all arranges booster pump.
7. a counter-infiltration cleaning system, the counter-infiltration clean unit comprising preposition filter core, rearmounted filter core and be arranged between described preposition filter core and described rearmounted filter core, it is characterized in that, described counter-infiltration clean unit is the counter-infiltration clean unit such as according to any one of claim 1-6.
8. counter-infiltration cleaning system according to claim 7, is characterized in that, described preposition filter core comprises the PP connected successively cotton filter core, granular activated carbon filter core and extruded activated carbon filter core.
9. the counter-infiltration cleaning system according to claim 7 or 8, is characterized in that, described rearmounted filter core is active carbon filter core.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106914135A (en) * | 2017-04-12 | 2017-07-04 | 浙江绿龙新材料有限公司 | A kind of water treatment plant with reverse osmosis membrane filter screen |
| CN107487913A (en) * | 2017-08-24 | 2017-12-19 | 江苏亚峰科技集团有限公司 | A kind of counter-infiltration system |
| CN107739070A (en) * | 2017-11-15 | 2018-02-27 | 珠海格力电器股份有限公司 | Water purification system and control method thereof |
| CN109399761A (en) * | 2018-12-04 | 2019-03-01 | 湖南城市学院 | A kind of reverse osmosis water purification units |
| CN109475818A (en) * | 2016-06-06 | 2019-03-15 | 巴特尔纪念研究所 | The counter-infiltration system and method for multistage infiltration auxiliary |
| CN112108000A (en) * | 2019-06-20 | 2020-12-22 | 国家能源投资集团有限责任公司 | Reverse osmosis system and use method thereof |
| CN113578053A (en) * | 2021-07-22 | 2021-11-02 | 滁州永强汽车制造有限公司 | Reverse osmosis membrane purification system |
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| CN107739070A (en) * | 2017-11-15 | 2018-02-27 | 珠海格力电器股份有限公司 | Water purification system and control method thereof |
| CN109399761A (en) * | 2018-12-04 | 2019-03-01 | 湖南城市学院 | A kind of reverse osmosis water purification units |
| CN112108000A (en) * | 2019-06-20 | 2020-12-22 | 国家能源投资集团有限责任公司 | Reverse osmosis system and use method thereof |
| CN113578053A (en) * | 2021-07-22 | 2021-11-02 | 滁州永强汽车制造有限公司 | Reverse osmosis membrane purification system |
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