CN105879692A - Turbulence-method vertical offline reverse osmosis membrane cleaning system and method - Google Patents
Turbulence-method vertical offline reverse osmosis membrane cleaning system and method Download PDFInfo
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- CN105879692A CN105879692A CN201610271481.9A CN201610271481A CN105879692A CN 105879692 A CN105879692 A CN 105879692A CN 201610271481 A CN201610271481 A CN 201610271481A CN 105879692 A CN105879692 A CN 105879692A
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- reverse osmosis
- osmosis membrane
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- 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
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- 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
- B01D2321/16—Use of chemical agents
- B01D2321/162—Use of acids
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- 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
- B01D2321/16—Use of chemical agents
- B01D2321/164—Use of bases
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- 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
- B01D2321/16—Use of chemical agents
- B01D2321/168—Use of other chemical agents
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- 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
- B01D2321/18—Use of gases
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention belongs to the technical field of membrane cleaning, and particularly relates to a turbulence-method vertical offline reverse osmosis membrane cleaning system and method. The system comprises a cleaning water tank, a cleaning water pump and a cleaning filter which are sequentially connected through corresponding pipelines, the cleaning filter is connected with an upper medium inlet-outlet pipe of an upper membrane head component and a lower medium inlet-outlet pipe of a lower membrane head component through corresponding pipelines, an upper flushing valve is arranged on the pipeline connecting the cleaning filter with the upper medium inlet-outlet pipe, a lower flushing valve is arranged on the pipeline connecting the cleaning filter with the lower medium inlet-outlet pipe, the upper medium inlet-outlet pipe and the lower medium inlet-outlet pipe are connected with a sewage discharging pipeline respectively, the lower membrane head component is provided with a turbulence medium inlet pipe, and a reverse osmosis membrane is fixed by the upper membrane head component and the lower membrane head component. The method includes that top-to-bottom and bottom-to-top cleaning methods are adopted alternately, turbulence action is utilized to improve capability of stripping and discharging pollutants on the surface of the membrane, and cleaning speed of the reverse osmosis membrane is increased while medicament consumption is reduced.
Description
Technical field
The invention belongs to Membrane cleaning technical field, be specifically related to a kind of sinuous flow method vertical offline reverse osmosis membrane purging system and cleaning method thereof.
Background technology
Reverse-osmosis membrane element is as the filters of deep layer, its surface inevitably remains colloid, microorganism, impurity particle and the precipitation on its surface of the indissoluble salt, therefore, at the reverse osmosis unit that multiple fields uses, once come into operation, finally being required for cleaning, simply the length of cleaning frequency is different.Reverse osmosis membrane cleans and is divided into two big classes at professional field; mainly clean based on on-line cleaning and off-line; on-line cleaning is that counter-infiltration system periodically sterilizes, periodically protects effective means; but it is helpless just to seem when facing reverse-osmosis membrane element serious pollution, it is accomplished by this time reverse-osmosis membrane element is carried out off-line cleaning.
At present, widely used reverse osmosis membrane off-line cleaning method is that current stabilization horizontal type off-line cleans, and purging system includes clear water water tank, flushing water pump, cleaned filter, closed cleaning putamina, pipe-line system and instrumentation (Pressure gauge, flow meter, conductance table etc.) composition.Cleaning method is to add the cleaning agent prepared to clean water tank, is then circulated, soaks, and two steps are repeated, and when pollutant difference, carries out attempting cleaning by the time of change cleaning agent formula and cleaning step.But, when pollutant are difficult to by medicament dissolution, disperse, peel off, when current are difficult to take pollutant out of reverse osmosis membrane, the product aqueous of reverse osmosis membrane can decline producing, and does not reaches the most far away design requirement, can only scrap；Reverse osmosis membrane is carried out by Reusability medicament, also can cause the decline of reverse osmosis membrane salt rejection rate, shortens the service life of reverse osmosis membrane.
Summary of the invention
In order to overcome that existing offline reverse osmosis membrane purging system cleaning performance is poor, pollutant be difficult to peel off discharges, cleaning frequency length, shortcoming that consumption pharmaceutical quantities is big, the invention provides a kind of sinuous flow method vertical offline reverse osmosis membrane purging system and cleaning method thereof, this technology can the stripping of strengthening membrane surface contaminant and the ability of discharge, accelerate reverse osmosis membrane cleaning speed and decrease reagent consumption amount.
In sum, in order to achieve the above object, the technical solution used in the present invention is as follows:
nullA kind of sinuous flow method vertical offline reverse osmosis membrane purging system，This system includes cleaning water tank、Flushing water pump、Cleaned filter、Upper flushing valve、Lower flushing valve、Lower film head assembly、Reverse osmosis membrane、Upper film head assembly、Upper drain valve、Lower drain valve and corresponding pipeline，It is characterized in that，Described cleaning water tank、Flushing water pump and cleaned filter pass sequentially through corresponding pipeline and connect，Described cleaned filter is connected by the lower medium gateway pipe of corresponding pipeline with the upper medium gateway of upper film head assembly pipe and lower film head assembly respectively，The pipeline that cleaned filter is connected with upper medium gateway pipe is provided with upper flushing valve，The pipeline that cleaned filter is connected with lower medium gateway pipe is provided with lower flushing valve，Upper medium gateway pipe and lower medium gateway pipe are connected with bilge discharge pipe road respectively，The pipeline that upper medium gateway pipe and bilge discharge pipe road connect is provided with drain valve，The pipeline that lower medium gateway pipe and bilge discharge pipe road connect is provided with lower drain valve，It is additionally provided with sinuous flow medium inlet pipe with film head assembly at present，Reverse osmosis membrane is fixed by upper film head assembly and lower film head assembly.
Further, described bilge discharge pipe road is communicated to clean water tank.
A kind of sinuous flow method vertical offline reverse osmosis membrane cleaning method, comprises the steps:
1) installing reverse osmosis membrane, be separately mounted in the sealing member of upper film head assembly and lower film head assembly in end face and the bottom surface of reverse osmosis membrane to be cleaned, reverse osmosis membrane bottom surface and end face are parallel with the end face of film head base and are in close contact；
2) open lower flushing valve, open flushing water pump, cleaned filter and upper drain valve the most respectively；
3) reverse osmosis membrane is cleaned from bottom to top, under the effect of flushing water pump, the lower medium gateway pipe arrival reverse osmosis membrane that current pass sequentially through cleaned filter, lower flushing valve and lower film head assembly from the cleaning cleaned water pump of water tank is carried out, cleaned sewage from bottom to top arrives film head assembly, upper drain valve be vented back to clean water tank；
4) adding sinuous flow medium, add sinuous flow medium from sinuous flow medium inlet pipe during cleaning, the sinuous flow medium being continuously added acts on jointly with cleanout fluid, the most program control causes sinuous flow；
5) reverse osmosis membrane is cleaned from top to bottom, current self-cleaning filter is divided into two-way, one road flows into lower flushing valve, in the inflow of another road, flushing valve the upper medium gateway pipe arrival reverse osmosis membrane through upper film head assembly are carried out, and cleaned sewage from top to bottom arrives lower film head assembly, lower drain valve be vented back to clean water tank, in the process, cleanout fluid from top to bottom, changes, by the flowing of cleanout fluid, the runner that cleanout fluid from bottom to top is formed, and produces sinuous flow effect.
Further, described sinuous flow medium is 0.2 ~ 0.5MPa pressure and the insoluble gas of every film 40 ~ 100L/min flow.
Further, described sinuous flow medium is nitrogen, hydrogen, air or noble gas.
Further, described cleanout fluid comprises acidic cleaning solution and alkaline cleaning fluid, and acidic cleaning solution includes that hydrochloric acid that mass fraction is 0.1% ~ 0.2% and concentration are the corrosion inhibiter of 50 ~ 200ppm；Alkaline cleaning fluid includes the EDETATE SODIUM salt of sodium hydroxide, the sodium tripolyphosphate of 1% ~ 4% and 0.5% ~ 1% that mass fraction is 0.1% ~ 0.2%.
Have the beneficial effect that produced by the present invention:
1, the present invention uses sinuous flow method vertical offline reverse osmosis membrane purging system and cleaning method thereof, overcomes that existing offline reverse osmosis membrane purging system cleaning performance is poor, pollutant are difficult to peel off discharges, cleaning frequency length, shortcoming that consumption pharmaceutical quantities is big.
2, the present invention can be greatly reinforced stripping and the discharge ability of film surface contaminant, accelerate reverse osmosis membrane cleaning speed and decrease reagent consumption amount, using vertical purging system by the direction and elemental effect utilizing current in beneficially cleaning process, film more fully to be cleaned.
3, the present invention utilizes cleaning method from bottom to top, the sinuous flow medium being continuously added in the process acts on jointly with cleanout fluid, the most program control cause sinuous flow, the pollutant enhancing flushing process discharge effect, sinuous flow medium and cleanout fluid continuously generate the countless lasing globule simultaneously, pollutant are greatly reinforced it from film surface and the stripping of each corner of film interlayer, scattered effect, and accelerate to open the runner of reverse osmosis membrane, further speed up the discharge of pollutant, thus substantially increase off-line cleaning efficiency.
4, the present invention uses top-down cleaning method, cleanout fluid is from top to bottom in the process, the runner that cleanout fluid from bottom to top is formed is changed by the flowing of cleanout fluid, produce sinuous flow effect, the part crack etc. being not easy from bottom to top to be flushed to is hidden stain, play back flush, peel off, discharge effect, simultaneously, owing to flowing to from top to bottom, meet gravity direction, advantageously in the discharge of the pollutant such as broken dirt, dust, enhance cleaning performance, reached the purpose quickly discharged by pollutant.
Accompanying drawing explanation
Fig. 1 is the system schematic of the present invention；
Fig. 2 is the structural representation of the film head assembly of the present invention.
Detailed description of the invention
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, in order to be better understood from the present invention, but protection scope of the present invention is not limited to this.
Embodiment
1
nullAs depicted in figs. 1 and 2，A kind of sinuous flow method vertical offline reverse osmosis membrane purging system，This system includes cleaning water tank 1、Flushing water pump 2、Cleaned filter 3、Upper flushing valve 6、Lower flushing valve 4、Upper drain valve 7、Lower drain valve 5、Lower film head assembly 8、Reverse osmosis membrane 10、Upper film head assembly 9 and corresponding pipeline，Described cleaning water tank 1、Flushing water pump 2 and cleaned filter 3 pass sequentially through corresponding pipeline and connect，Described cleaned filter 3 is connected with the upper medium gateway pipe 18 of upper film head assembly 9 and the lower medium gateway pipe 16 of lower film head assembly 8 by corresponding pipeline respectively，The pipeline that cleaned filter 3 is connected with upper medium gateway pipe 18 is provided with upper flushing valve 6，The pipeline that cleaned filter 3 is connected with lower medium gateway pipe 16 is provided with lower flushing valve 4，Upper medium gateway pipe 18 and lower medium gateway pipe 16 are connected with bilge discharge pipe road respectively，The pipeline that upper medium gateway pipe 18 and bilge discharge pipe road connect is provided with drain valve 7，The pipeline that lower medium gateway pipe 16 and bilge discharge pipe road connect is provided with lower drain valve 5，It is additionally provided with sinuous flow medium inlet pipe 17 with film head assembly 8 at present，Reverse osmosis membrane 10 is fixed by upper film head assembly 9 and lower film head assembly 8.
As shown in Figure 2, for fixing the film head assembly of reverse osmosis membrane, the film head base 15 of film head assembly is provided with sealing member 14, sealing member 14 is provided with flange 13, after film head base 15, sealing member 14 and flange 13 are to just full crying, using fastening bolt 12 to be fixed, lower medium gateway pipe 16 and sinuous flow medium inlet pipe 17 are welded on the sidewall of film head base 15, and clip is encircled at sealing member 14 neck.
See Fig. 1, Fig. 2, the cleaning method of the present invention, comprise the steps:
1) installing reverse osmosis membrane, be separately mounted in the sealing member of upper film head assembly 9 and lower film head assembly 8 in end face and the bottom surface of reverse osmosis membrane 10 to be cleaned, reverse osmosis membrane 10 bottom surface and end face are parallel with the end face of film head base 15 and are in close contact；
2) first open lower flushing valve 4, open flushing water pump 2, cleaned filter 3 and upper drain valve 7 the most respectively；
3) reverse osmosis membrane is cleaned from bottom to top, under the effect of flushing water pump 2, current pass sequentially through the lower medium gateway pipe 16 of cleaned filter 3, lower flushing valve 4 and lower film head assembly 8 and arrive reverse osmosis membrane 10 and be carried out from cleaning the cleaned water pump of water tank 12, cleaned sewage from bottom to top arrives film head assembly 9, the bilge discharge pipe road arranged on pipeline by upper drain valve 7, is vented back to clean water tank 1；
4) sinuous flow medium is added, sinuous flow medium is added from sinuous flow medium inlet pipe 17 during cleaning, sinuous flow medium can be nitrogen, hydrogen, air or noble gas, the sinuous flow medium being continuously added acts on jointly with cleanout fluid, the most program control cause sinuous flow, the pollutant enhancing flushing process discharge effect, simultaneously, sinuous flow medium and cleanout fluid continuously generate the countless lasing globule, it is greatly reinforced pollutant to peel off from film surface and each corner of film interlayer, scattered effect, and accelerate to open the runner of reverse osmosis membrane, further speed up the discharge of pollutant, thus substantially increase off-line cleaning efficiency, wherein cleanout fluid comprises acidic cleaning solution and alkaline cleaning fluid, acidic cleaning solution includes that hydrochloric acid that mass fraction is 0.1% ~ 0.2% and concentration are the corrosion inhibiter of 50 ~ 200ppm；Alkaline cleaning fluid includes the EDETATE SODIUM salt of sodium hydroxide, the sodium tripolyphosphate of 1% ~ 4% and 0.5% ~ 1% that mass fraction is 0.1% ~ 0.2%；
5) reverse osmosis membrane is cleaned from top to bottom, under the effect of flushing water pump 2, current self-cleaning filter 3 flows into above flushing valve 6 and the upper medium gateway pipe 18 through upper film head assembly 9 arrives reverse osmosis membrane 10 and is carried out, cleaned sewage from top to bottom arrives lower film head assembly 8, by lower drain valve 5, bilge discharge pipe road, it is vented back to clean water tank 1, in the process, cleanout fluid is from top to bottom, the runner that cleanout fluid from bottom to top is formed is changed by the flowing of cleanout fluid, produce sinuous flow effect, the part crack etc. being not easy from bottom to top to be flushed to is hidden stain, play back flush, peel off, discharge effect, simultaneously, owing to flowing to from top to bottom, meet gravity direction, advantageously in broken dirt, the discharge of the pollutant such as dust, enhance cleaning performance, reach the purpose quickly discharged by pollutant.
The whole system of the present invention can be as required, it is achieved branched reverse-osmosis membrane element cleans side by side, it is also possible to realizing branched one-tenth arranged side by side one group, the most again by many groups the most side by side, many groups are carried out simultaneously, to improve cleaning efficiency.The further raising of cleaning efficiency, have benefited from the Automated condtrol of whole system, by automated procedures, control water pump, lower flushing valve, upper drain valve, upper flushing valve, lower drain valve, sinuous flow medium, the automatization realizing purging system is cleaned, except dismantling and installing reverse osmosis membrane.
To illustrate that, above-described embodiment is illustrative not limiting to technical solution of the present invention, the equivalent of art those of ordinary skill or other amendment made according to prior art, as long as not beyond thinking and the scope of technical solution of the present invention, within should be included in interest field of the presently claimed invention.
Claims (6)
- null1. a sinuous flow method vertical offline reverse osmosis membrane purging system，This system includes cleaning water tank、Flushing water pump、Cleaned filter、Upper flushing valve、Lower flushing valve、Lower film head assembly、Reverse osmosis membrane、Upper film head assembly、Upper drain valve、Lower drain valve and corresponding pipeline，It is characterized in that，Described cleaning water tank、Flushing water pump and cleaned filter pass sequentially through corresponding pipeline and connect，Described cleaned filter is connected by the lower medium gateway pipe of corresponding pipeline with the upper medium gateway of upper film head assembly pipe and lower film head assembly respectively，The pipeline that cleaned filter is connected with upper medium gateway pipe is provided with upper flushing valve，The pipeline that cleaned filter is connected with lower medium gateway pipe is provided with lower flushing valve，Upper medium gateway pipe and lower medium gateway pipe are connected with bilge discharge pipe road respectively，The pipeline that upper medium gateway pipe and bilge discharge pipe road connect is provided with drain valve，The pipeline that lower medium gateway pipe and bilge discharge pipe road connect is provided with lower drain valve，It is additionally provided with sinuous flow medium inlet pipe with film head assembly at present，Reverse osmosis membrane is fixed by upper film head assembly and lower film head assembly.
- A kind of sinuous flow method vertical offline reverse osmosis membrane purging system the most according to claim 1, it is characterised in that described bilge discharge pipe road is communicated to clean water tank.
- A kind of sinuous flow method vertical offline reverse osmosis membrane cleaning method the most according to claim 1, it is characterised in that the method comprises the steps:1) installing reverse osmosis membrane, be separately mounted in the sealing member of upper film head assembly and lower film head assembly in end face and the bottom surface of reverse osmosis membrane to be cleaned, reverse osmosis membrane bottom surface and end face are parallel with the end face of film head base and are in close contact；2) open lower flushing valve, open flushing water pump, cleaned filter and upper drain valve the most respectively；3) reverse osmosis membrane is cleaned from bottom to top, under the effect of flushing water pump, the lower medium gateway pipe arrival reverse osmosis membrane that current pass sequentially through cleaned filter, lower flushing valve and lower film head assembly from the cleaning cleaned water pump of water tank is carried out, cleaned sewage from bottom to top arrives film head assembly, upper drain valve be vented back to clean water tank；4) adding sinuous flow medium, add sinuous flow medium from sinuous flow medium inlet pipe during cleaning, the sinuous flow medium being continuously added acts on jointly with cleanout fluid, the most program control causes sinuous flow；5) reverse osmosis membrane is cleaned from top to bottom, current self-cleaning filter is divided into two-way, one road flows into lower flushing valve, in the inflow of another road, flushing valve the upper medium gateway pipe arrival reverse osmosis membrane through upper film head assembly are carried out, and cleaned sewage from top to bottom arrives lower film head assembly, lower drain valve be vented back to clean water tank, in the process, cleanout fluid from top to bottom, changes, by the flowing of cleanout fluid, the runner that cleanout fluid from bottom to top is formed, and produces sinuous flow effect.
- A kind of sinuous flow method vertical offline reverse osmosis membrane cleaning method the most according to claim 3, it is characterised in that described sinuous flow medium is 0.2 ~ 0.5MPa pressure and the insoluble gas of every film 40 ~ 100L/min flow.
- A kind of sinuous flow method vertical offline reverse osmosis membrane cleaning method the most according to claim 3, it is characterised in that described sinuous flow medium is nitrogen, hydrogen, air or noble gas.
- A kind of sinuous flow method vertical offline reverse osmosis membrane cleaning method the most according to claim 3, it is characterized in that, described cleanout fluid comprises acidic cleaning solution and alkaline cleaning fluid, and acidic cleaning solution includes that hydrochloric acid that mass fraction is 0.1% ~ 0.2% and concentration are the corrosion inhibiter of 50 ~ 200ppm；Alkaline cleaning fluid includes the EDETATE SODIUM salt of sodium hydroxide, the sodium tripolyphosphate of 1% ~ 4% and 0.5% ~ 1% that mass fraction is 0.1% ~ 0.2%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610271481.9A CN105879692A (en) | 2016-04-28 | 2016-04-28 | Turbulence-method vertical offline reverse osmosis membrane cleaning system and method |
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| CN201610271481.9A CN105879692A (en) | 2016-04-28 | 2016-04-28 | Turbulence-method vertical offline reverse osmosis membrane cleaning system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774139A (en) * | 2017-11-01 | 2018-03-09 | 神华集团有限责任公司 | Offline reverse osmosis membrane purging system and cleaning method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009143740A1 (en) * | 2008-05-30 | 2009-12-03 | 北京汉青天朗水处理科技有限公司 | Method and apparatus for cleaning a film seperating device |
| CN101785972A (en) * | 2009-01-23 | 2010-07-28 | 天津膜天膜科技有限公司 | Water treatment system with bidirectional cleaning function |
| CN102179179A (en) * | 2011-03-31 | 2011-09-14 | 江门市创源水处理科技有限公司 | Vertical roll membrane filtering device and cleaning method thereof |
| CN102485329A (en) * | 2011-03-22 | 2012-06-06 | 绵阳美能材料科技有限公司 | External-compression hollow fiber membrane cleaning method with no backwashing process |
| CN103331102A (en) * | 2013-06-21 | 2013-10-02 | 山西太钢不锈钢股份有限公司 | Offline cleaning and evaluating device of reverse osmosis membrane element and application method of device |
| CN205550057U (en) * | 2016-04-28 | 2016-09-07 | 佘宏栓 | Vertical off -line reverse osmosis membrane cleaning system of sinuous flow method |
-
2016
- 2016-04-28 CN CN201610271481.9A patent/CN105879692A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009143740A1 (en) * | 2008-05-30 | 2009-12-03 | 北京汉青天朗水处理科技有限公司 | Method and apparatus for cleaning a film seperating device |
| CN101785972A (en) * | 2009-01-23 | 2010-07-28 | 天津膜天膜科技有限公司 | Water treatment system with bidirectional cleaning function |
| CN102485329A (en) * | 2011-03-22 | 2012-06-06 | 绵阳美能材料科技有限公司 | External-compression hollow fiber membrane cleaning method with no backwashing process |
| CN102179179A (en) * | 2011-03-31 | 2011-09-14 | 江门市创源水处理科技有限公司 | Vertical roll membrane filtering device and cleaning method thereof |
| CN103331102A (en) * | 2013-06-21 | 2013-10-02 | 山西太钢不锈钢股份有限公司 | Offline cleaning and evaluating device of reverse osmosis membrane element and application method of device |
| CN205550057U (en) * | 2016-04-28 | 2016-09-07 | 佘宏栓 | Vertical off -line reverse osmosis membrane cleaning system of sinuous flow method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774139A (en) * | 2017-11-01 | 2018-03-09 | 神华集团有限责任公司 | Offline reverse osmosis membrane purging system and cleaning method |
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