CN106000111A - Filter element washing protecting system in reverse osmosis water production system - Google Patents
Filter element washing protecting system in reverse osmosis water production system Download PDFInfo
- Publication number
- CN106000111A CN106000111A CN201610561142.4A CN201610561142A CN106000111A CN 106000111 A CN106000111 A CN 106000111A CN 201610561142 A CN201610561142 A CN 201610561142A CN 106000111 A CN106000111 A CN 106000111A
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- China
- Prior art keywords
- water
- reverse osmosis
- filter element
- membrane
- back purge
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 146
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000005406 washing Methods 0.000 title abstract description 7
- 239000012528 membrane Substances 0.000 claims abstract description 35
- 239000002351 wastewater Substances 0.000 claims abstract description 12
- 238000010926 purge Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 12
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 12
- 239000008213 purified water Substances 0.000 abstract description 6
- 238000011001 backwashing Methods 0.000 abstract 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 13
- 238000000746 purification Methods 0.000 description 13
- 238000001914 filtration Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/10—Accessories; Auxiliary operations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a filter element washing protecting system in a reverse osmosis water production system. The filter element washing protecting system in the reverse osmosis water production system comprises a first one-way valve, a water bag, a back washing device, a second one-way valve, a reverse osmosis device, an RO membrane and a waste water drainage valve, wherein the RO membrane is arranged in a working cavity inside the reverse osmosis device and divides the working cavity into a purified water area and a concentrated water area which are independent from each other; a water outlet is formed in the top of the purified water area, and is connected with a water inlet of the back washing device through a tee joint. Purified water is accommodated in the water bag, a washing technology for back washing of the RO membrane under micro-pressure is realized, a small amount of concentrated water is drained in a water production process, and the RO membrane is washed by the purified water stored in the water bag after water production is finished, so that the problem of scaling of concentrated water which remains in an inlet conduit of the RO membrane is solved, slight scale generated in a water production process can also be dissolved in time, scaling risks of the RO membrane are reduced, and the actual service life of the RO membrane is greatly prolonged while water quality is guaranteed.
Description
Technical field
The present invention relates to a kind of reverse osmosis water manufacturing system, in specifically a kind of reverse osmosis water manufacturing system, filter element rinses protection system.
Background technology
Along with the most artificial and natural acute variation, cause living environment to have a great impact, especially water and air this
A little most basic factors of living.Being improved in order to ensure people's basic living environment, all trades and professions with love environment are being all
Most basic production factors.But improvement of environment is not overnight to reach effect, this just forces us in existing condition
Under, the fundamental need finding some special tool(s)s and technology to reach healthy living of trying every possible means；It is clean that this just guides such as air
The invention of change technology, life and industry drinking water treatment technology etc. and development.
Present stage water technology tempers progress through invention, and developing direction generally has several:
1, ultrafiltration primary filter technology；
2, NF membrane profound level filtering technique；
3, reverse osmosis completeness filtering technique.
Above scheme is the most all to apply some auxiliary filter elements (PP is cotton, granulated carbon, activated carbon etc.) to complete water process
Means.For technology and invention effect, the generation utilization of reverse osmosis technology is the technology of market feedback effect most significant end, for
People's lives drinking water quality improves makes huge contribution.Ultrafiltration primary filter can only remove silt in water, big technically
Particle suspensions, filtering accuracy is 0.01 micron: nanofiltration can remove silt in water, bulky grain float, a small amount of colloid,
A small amount of bacterial micro-organism, filtering accuracy is 0.001 micron；Reverse osmosis can remove silt in water, bulky grain float, colloid,
Heavy metal ion and chemical pollutant, filtering accuracy is 0.0001 micron.In the development of osmosis filtration technology, currently
Having one side is the emphasis " the prolongation technical scheme in the service life of reverse osmosis (RO) film " that a lot of expert's research and development breaks through.
In present stage industry, water purification washes the proposition of membrane technology, and water purification has dissolving colloid, the actual effect of anti-RO film fouling, water purification
Washing film and really can be greatly improved the service life of RO film, round this theory of clean washing film, a lot of companies are all trying every possible means
Go to be embodied as.The using method investigated has；
1, air bag backwash；
2, pressure pot backwash；
3, increase water pump, regulate water route, reach developing result.
Above method has weak point, air bag to rinse first air bag quality stability it is difficult to ensure that (unbalance stress, thin film welds
Connect), furthermore can store less than normal with the actual water purification amount that can use；Pressure pot is relatively big due to technical limitations volume ratio, applies narrow
Narrow, household machine is the most have more than is needed, although it is big to store water purification amount, actually used middle water purification rinses every time and is all left a lot of row and do not goes out
Go, easy secondary pollution；Increasing water pump and increase electric elements, water route and circuit will change, and do not allow while increasing cost
Easy to control, increase hidden danger, the expense that consumer is undertaken increases, and above method seldom has company to use, and clean washing film is managed
Read and be also confined in the narrowest scope now.
Summary of the invention
It is an object of the invention to provide filter element in a kind of reverse osmosis water manufacturing system and rinse protection system, to solve above-mentioned background skill
The problem proposed in art.
For achieving the above object, the present invention provides following technical scheme:
In a kind of reverse osmosis water manufacturing system, filter element rinses protection system, including a check valve, water bag, back purge system, two
Number check valve, reverse osmosis unit, filter element and discharge of wastewater valve, arrange filter element in the internal work chamber of described reverse osmosis unit,
The internal work chamber of reverse osmosis unit is divided into the clean water area being mutually independent and dense pool, the top of described clean water area by filter element
Portion arranges outlet, and outlet connects the water inlet of back purge system by threeway, in the internal work chamber of back purge system
Arranging water bag, the water inlet of water bag is the water inlet of back purge system, and the bottom of back purge system arranges air inlet, and
Installing a check valve on air inlet, the discharge of wastewater mouth that top, dense pool is arranged installs discharge of wastewater valve, and described backwash fills
The water inlet put by counter-flushing pipeline connect bottom dense pool arrange water inlet, and counter-flushing pipeline arrange No. two unidirectional
Valve, No. two check valves ensure that in back purge system, water is to dense pool one-way flow.
As the further scheme of the present invention: the water inlet arranged bottom described dense pool connects former water supply system.
As the further scheme of the present invention: described filter element is RO reverse osmosis membrane, ultrafilter membrane etc..
As the further scheme of the present invention: its concrete operation method is: every time after controlling the water circulation, system controls air pump to instead
Pressurization in flusher so that the water that purifies in water bag exports, simultaneously to counter-flushing pipeline and outlet from the water inlet of water bag
Open discharge of wastewater valve so that the pressure in clean water area is more than the pressure in dense pool, thus realizes rushing of RO reverse osmosis membrane
Wash.
Compared with prior art, the invention has the beneficial effects as follows: the present invention uses water bag to store purification water and realizes minute-pressure backwash
The douching technique of RO film, discharges the dense water of trace during controlling the water circulation, controlling the water circulation rinses RO film with the purification water of water bag internal memory after terminating,
Solve condensed water and remain in the scale problems in RO film water inlet flow channel, it is also possible to produce during dissolving controlling the water circulation in time
Slight fouling, reduces the fouling risk of RO film, is greatly increased RO film actual life while ensureing water quality.This
The little installation of invention volume is changed conveniently, and stability is higher on year-on-year basis, and moisture storage capacity is big, does not haves secondary pollution.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly and completely
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under not making creative work premise
Execute example, broadly fall into the scope of protection of the invention.
Referring to Fig. 1, in the embodiment of the present invention, in a kind of reverse osmosis water manufacturing system, filter element rinses protection system, including No. one
Check valve 1, water bag 2,3, No. two check valves 4 of back purge system, reverse osmosis unit 5, RO reverse osmosis membrane 6 and waste water row
Putting valve 7, arrange RO reverse osmosis membrane 6 in the internal work chamber of described reverse osmosis unit 5, reverse osmosis is filled by RO reverse osmosis membrane 6
The internal work chamber putting 5 is divided into the clean water area being mutually independent and dense pool, in order to carry out reverse osmosis controlling the water circulation.
The top of described clean water area arranges outlet, and the water purification after purifying is discharged, convenient use, and outlet passes through threeway
Connect the water inlet of back purge system 3, the internal work chamber of back purge system 3 arranges water bag 2, the water inlet of water bag 2
It is the water inlet of back purge system 3, and the bottom of back purge system 3 arranges a number list of installation on air inlet, and air inlet
To valve 1, having disposable gas-flow closure and the function of convenient inflation next time, air inlet passes through gas injection, thus controls backwash
The pressure of water bag in device 3.
The water inlet arranged bottom described dense pool connects former water supply system, and the discharge of wastewater mouth that top, dense pool is arranged is installed
Discharge of wastewater valve 7, the most quantitative condensed water discharging dense pool, to reduce the concentration in dense pool.
The water inlet of described back purge system 3 connects the water inlet arranged bottom dense pool, and backwash by counter-flushing pipeline
Pipeline arranges No. two check valves 4, and No. two check valves 4 ensure that in back purge system 3, water is to dense pool one-way flow.
The operation principle of the present invention is:
The process of reverse osmosis water purifying plant controlling the water circulation, it is simply that the process that former water is concentrated.Some low solubilities in former water are molten
Matter (such as CaCO3, CaSO4, SiO2 etc.) can reach hypersaturated state, easy crystallization, is deposited on RO reverse osmosis membrane
6 surfaces (fouling).Therefore, during reverse osmosis controlling the water circulation, need to discharge a certain proportion of condensed water, to carry discharge
Low solubility solute, prevents RO reverse osmosis membrane 6 fouling.Net water recoveries is the highest, and the condensed water ratio of discharge is the lowest, knot
The risk of dirt is the biggest.The water that purifies after RO reverse osmosis membrane 6 reverse osmosis has filtered the most low solubilities in water
Salt, degree of unsaturation is high, dissolving power is strong, can dissolve the slight fouling on RO reverse osmosis membrane 6 surface.
The present invention uses water bag 2 to store the reverse osmosis-purified water after purifying, and in order to realize " high pressure just rinses " and " minute-pressure
Backwash " douching technique of RO reverse osmosis membrane 6, discharge the dense water of trace during controlling the water circulation, controlling the water circulation terminate after with water bag internal memory
Reverse osmosis-purified water rinses RO reverse osmosis membrane 6, solves condensed water and remains in the fouling in RO reverse osmosis membrane 6 water inlet flow channel
Problem, it is also possible to the slight fouling produced during dissolving controlling the water circulation in time, reduces the fouling risk of RO reverse osmosis membrane 6,
Water purification TDS is more stable, and RO reverse osmosis membrane 6 life-span is longer.
The operation principle of back purge system 3:
Back purge system 3 has had the biggest breakthrough technically, rational in infrastructure, and makes water bag internal containing certain pressure
Power, freely changes on intake-outlet, it is not necessary to increase auxiliary equipment.Go out through the water treatment facilities equipped with back purge system 3
The purification water come is entered back purge system 3 by water inlet, and certain purification water collected by water bag, and when internal pressure, to reach equipment pre-
If after pressure, the water treatment facilities equipped with back purge system 3 quit work.Now water inlet flow channel in RO reverse osmosis membrane 6
Former water mobility is excessively poor, the water on RO reverse osmosis membrane 6 (or ultrafilter membrane) top layer, easily excessively concentrates and reaches supersaturation shape
State, crystallizes on RO reverse osmosis membrane 6 (or ultrafilter membrane) top layer, produces fouling；And back purge system 3 stops work at equipment
After work, water bag is internal automatically forms a pressure differential with outside, promotes the internal water of back purge system 3 by inside and outside differential pressure certainly
Moving flows in the clean water area that pressure is relatively small, remains in RO reverse osmosis by soaking to dissolve directly to rinse during controlling the water circulation
Film 6 (or ultrafilter membrane) is internal attaches pollutant and crystalline solid, rinses out blocking or adheres to micropollutants, and many
Remaining purification water can be stationed in the shell of RO reverse osmosis membrane 6 (or ultrafilter membrane), reduces fouling risk, is ensureing water quality
While extend service life of film.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and do not carrying on the back
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter from
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.Should not be considered as limiting involved claim by any reference in claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only comprises
One independent technical scheme, this narrating mode of description is only the most for clarity sake, and those skilled in the art should be by
Description is as an entirety, and the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can
With other embodiments understood.
Claims (4)
1. in reverse osmosis water manufacturing system filter element rinse a protection system, including a check valve, water bag, back purge system,
No. two check valves, reverse osmosis unit, filter element and discharge of wastewater valve, arrange filter element in the internal work chamber of described reverse osmosis unit,
The internal work chamber of reverse osmosis unit is divided into the clean water area being mutually independent and dense pool by filter element, it is characterised in that institute
The top stating clean water area arranges outlet, and outlet connects the water inlet of back purge system by threeway, back purge system
Arranging water bag in internal work chamber, the water inlet of water bag is the water inlet of back purge system, and the bottom of back purge system sets
Putting a number check valve of installation on air inlet, and air inlet, the discharge of wastewater mouth that top, dense pool is arranged installs discharge of wastewater valve,
The water inlet of described back purge system connects the water inlet arranged bottom dense pool by counter-flushing pipeline, and counter-flushing pipeline sets
Putting No. two check valves, No. two check valves ensure that in back purge system, water is to dense pool one-way flow.
In a kind of reverse osmosis water manufacturing system the most according to claim 1, filter element rinses protection system, it is characterised in that
The water inlet arranged bottom described dense pool connects former water supply system.
In a kind of reverse osmosis water manufacturing system the most according to claim 1, filter element rinses protection system, it is characterised in that
Described filter element is RO reverse osmosis membrane or ultrafilter membrane.
In a kind of reverse osmosis water manufacturing system the most according to claim 1, filter element rinses protection system, it is characterised in that
The concrete operation method rinsing protection system is: every time after controlling the water circulation, and system controls air pump and pressurizes in back purge system,
The water that purifies in water bag is exported to counter-flushing pipeline and outlet from the water inlet of water bag, opens discharge of wastewater valve simultaneously,
Make the pressure that the pressure in clean water area is more than in dense pool, thus realize the flushing of RO reverse osmosis membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610561142.4A CN106000111A (en) | 2016-07-13 | 2016-07-13 | Filter element washing protecting system in reverse osmosis water production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610561142.4A CN106000111A (en) | 2016-07-13 | 2016-07-13 | Filter element washing protecting system in reverse osmosis water production system |
Publications (1)
| Publication Number | Publication Date |
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| CN106000111A true CN106000111A (en) | 2016-10-12 |
Family
ID=57119149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610561142.4A Pending CN106000111A (en) | 2016-07-13 | 2016-07-13 | Filter element washing protecting system in reverse osmosis water production system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430427A (en) * | 2016-11-25 | 2017-02-22 | 陈良灯 | Integrated ultra-filtration water purifier with solar lamp |
| CN109012206A (en) * | 2018-10-30 | 2018-12-18 | 杭州老板电器股份有限公司 | filter core and water purifier |
| CN111989297A (en) * | 2018-03-29 | 2020-11-24 | 倍世水技术股份有限公司 | Apparatus and method for treating drinking water |
| CN112551647A (en) * | 2020-12-22 | 2021-03-26 | 珠海格力电器股份有限公司 | Supercharging device and water purifier |
| CN113134302A (en) * | 2021-05-25 | 2021-07-20 | 开能健康科技集团股份有限公司 | Primary and secondary reverse osmosis membrane device and reverse osmosis water purifier |
| CN114130200A (en) * | 2022-02-08 | 2022-03-04 | 北京中源创能工程技术有限公司 | Device and method for extracting liquid bio-organic fertilizer by double-membrane method |
| EP4132688A4 (en) * | 2020-04-06 | 2023-11-15 | EMP-Innovations OY | Water purification system |
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Application publication date: 20161012 |