CN203750426U - Device applicable to pulse type washing membrane filtration assembly - Google Patents
Device applicable to pulse type washing membrane filtration assembly Download PDFInfo
- Publication number
- CN203750426U CN203750426U CN201320882888.7U CN201320882888U CN203750426U CN 203750426 U CN203750426 U CN 203750426U CN 201320882888 U CN201320882888 U CN 201320882888U CN 203750426 U CN203750426 U CN 203750426U
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- Prior art keywords
- valve
- membrane filtration
- filtration module
- water
- equipment
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000005374 membrane filtration Methods 0.000 title claims abstract description 76
- 238000005406 washing Methods 0.000 title abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000011001 backwashing Methods 0.000 claims abstract description 20
- 238000004140 cleaning Methods 0.000 claims description 29
- 239000000047 product Substances 0.000 claims description 6
- 241001270131 Agaricus moelleri Species 0.000 claims description 2
- 235000012489 doughnuts Nutrition 0.000 claims description 2
- 239000000706 filtrate Substances 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000000108 ultra-filtration Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 13
- 239000000126 substance Substances 0.000 description 13
- 239000012528 membrane Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000011109 contamination Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000007654 immersion Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000035568 catharsis Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Abstract
The utility model relates to a device applicable to a pulse type washing membrane filtration assembly. The device comprises a water inlet valve (1), a lower drain valve (2), an upper drain valve (3), a water producing valve (4), a backwashing valve (5), a dosing pump (6), a backwashing pump (7), a water concentrating valve (8), a membrane filtration assembly (9) and an air valve (10), wherein the lower end of the membrane filtration assembly (9) is respectively connected with the water inlet valve (1) and the lower drain valve (2) through a pipeline; the upper end of the membrane filtration assembly (9) is respectively connected with the water producing valve (4) and the backwashing valve (5) through the pipeline; the side end of the membrane filtration assembly (9) is respectively connected with the upper drain valve (3) and the water concentrating valve (8) through the pipeline; the backwashing pump (7) and the dosing pump (6) are connected with the upper end of the membrane filtration assembly (9) through the backwashing valve (5); meanwhile, the air valve (10) is arranged between the water inlet valve (1) and the membrane filtration assembly (9).
Description
Technical field
The utility model relate generally to, for the equipment of cleaning membrane filtration modules, relates more specifically to the equipment for pulsed cleaning membrane filtration modules.
Background technology
Membrane filtration module is a kind of Novel sewage treatment technology developing rapidly in recent years.It is high that it has removal efficiency, has the advantages such as larger flexibility and practicality.Under the effect of hydraulic pressure, the hydrone and the small-molecule substance that are less than membrane filtration aperture see through filter membrane, the pollutants such as suspended particulate substance, bacterium, virus, colloid, larger molecular organics that are greater than its pore size filter are trapped within a side of filter membrane, thereby realize the catharsis to water quality.Membrane filtration technique is used widely in fields such as counter-infiltration pretreatment, the manufacture of high-quality running water, wastewater treatment and reuse, urban family quality classification water supply and rural water improvements.
But in microfiltration process, have film contamination phenomenon, when membrane filtration module is after operation a period of time, pollutant starts to be attached in the micropore of filter membrane.If pollute aggravation, filter membrane is easy to stop up, and the performances such as the permeation flux of filter membrane and rejection are changed, and causes shorten the service life of filter membrane, has greatly affected the practical application of membrane filtration technique.Continuation operates under this condition, and cake layer starts to be deposited on filter membrane surface, and suction is still carried out, and mud cake is just compacted, and cannot remove and carry out sewage disposal, thereby have to change filter membrane.Membrane filtration module expensive, the replacing of the membrane filtration module that is in operation even can account for the 40-75% of overall running cost.
The generation that film pollutes is extremely complicated, see at present, be in filter process on the one hand, the particulate in sewage, micelle or some solute molecule and film generation physics or physics chemical action, or because concentration polarization make solute on film surface over its solubility; Inside and outside adsorption, the deposition at film that may cause because of mechanism on the other hand, cause membrane aperture to diminish or stop up, and membrane flux reduced and separating property reduces.Final result is the inside and outside surface deposition of film, accordingly, film can be polluted and be divided into cake layer pollution and the Pore Blocking pollution depositing on face.
Film pollutes and is mainly divided into biochemistry pollution and physical contamination, and biology and chemical contamination are generally removed by chemical agent, and physical contamination generally can be washed away and be removed by hydraulic reverse.
In fact, film pollutes the research of cleaning has become a hot issue in membrane separation technique research.In regular job, normally, according to the degree of polluting, membrane filtration module is immersed in to 2-24 hour in chemical.For different types of film, select its suitable chemical, prevent the infringement of chemical to film.
But, owing to being subject to the restriction of time, space or other factors, usually cannot adopt chemical method to clean, can only carry out the cleaning of physical method, as the flushing of high flow rate water, sponge ball mechanical scrub, backwash and reverse impulse etc., to rush the de-method that is deposited on sludge blanket on film surface.But for the physical methods such as flushing, when the impact of only having the sludge blanket that adheres to when face to cause the filtration resistance of film is very large, the effect of this method is just more remarkable.
In addition, it should be noted that it is generally that physical contamination and biochemistry are polluted existence simultaneously that film pollutes.And Chemical cleaning is because clean the reason of complicated and each side, cause the Chemical cleaning can not be too frequent, so it is very important for slowing down biology and chemical contamination that daily maintainability dosing is cleaned, it is the key factor that improves system run all right and extend the Chemical cleaning cycle.
In regular maintenance, clean, the way conventionally adopting is to squeeze into film group device after adding medicament to mix in backwash water, then soaks about half an hour, finally discharges liquid again, and step order is: minute immersion+liquid discharge of dosing backwash+30.
It is the most frequently used a kind of way that this routine dosing maintainability cleans, but there are two deficiencies: the one, required long soaking time, this can take a large amount of effective filtration times, and the absolute aquifer yield of system is reduced, if soak time is too short, and DeGrain; The 2nd, conventional dosing maintainability cleans herb liquid and fails to give full play to its effect.
Therefore, aquifer yield decline, the poor problem of liquid effect are grown, made to the scavenging period polluting for the film existing in prior art, and this area is in the urgent need to a kind of novel equipment for pulsed cleaning membrane filtration modules.
Utility model content
The utility model provides a kind of equipment for pulsed cleaning membrane filtration modules, thereby has solved the above-mentioned problems in the prior art.
The utility model relates to a kind of equipment for pulsed cleaning membrane filtration modules, this equipment comprises water intaking valve, lower draining valve, upper draining valve, produce water valve, backwash valve, dosing pump, backwashing pump, dense water valve, membrane filtration module and air valve, wherein, the lower end of described membrane filtration module is connected with described lower draining valve with described water intaking valve respectively via pipeline, the upper end of described membrane filtration module is connected with described backwash valve with described product water valve respectively via pipeline, the side of described membrane filtration module is connected with described dense water valve with described upper draining valve respectively via pipeline, described backwashing pump is connected with described membrane filtration module upper end by described backwash valve with described dosing pump, and described air valve is between described water intaking valve and described membrane filtration module.
One preferred embodiment in, described membrane filtration module is a kind of in flat, tubular type, rolling, capillary type or doughnut formula membrane filtration module.
Another preferred embodiment in, described membrane filtration module is ultrafiltration membrance filter assembly or micro-filtrate membrane filtration assembly.
Another preferred embodiment in, described membrane filtration module is one or more.
Another preferred embodiment in, described air valve is spherical air valve, square air valve or flat-top shape air valve.
In the actual use procedure of the equipment of pulsed cleaning membrane filtration modules of the present utility model, pass through water intake valve, by dense water valve draining, by producing water valve, produce water, by air valve, add compressed air, by backwashing pump, carry out backwash water inlet, by dosing pump, carry out maintainability and clean dosing, thereby reach the object of cleaning membrane filtration modules.
Accompanying drawing explanation
Fig. 1 is the equipment schematic diagram for cleaning membrane filtration modules of prior art.
Fig. 2 is according to the equipment schematic diagram for pulsed cleaning membrane filtration modules of the present utility model.
Fig. 3 be prior art with according to the effect contrast figure of the equipment for pulsed cleaning membrane filtration modules of the present utility model.
Reference numeral:
1. water intaking valve
2. descend draining valve
3. go up draining valve
4. produce water valve
5. backwash valve
6. dosing pump
7. backwashing pump
8. dense water valve
9. membrane filtration module
10. air valve
The specific embodiment
Below in conjunction with accompanying drawing, the utility model will be further described, it should be understood that, they are only not used in restriction scope of the present utility model for the utility model is described.
The technical solution of the utility model relates to a kind of equipment for pulsed cleaning membrane filtration modules, this equipment comprises water intaking valve 1, lower draining valve 2, upper draining valve 3, produce water valve 4, backwash valve 5, dosing pump 6, backwashing pump 7, dense water valve 8, membrane filtration module 9 and air valve 10, wherein, the lower end of described membrane filtration module 9 is connected with described lower draining valve 2 with described water intaking valve 1 respectively via pipeline, the upper end of described membrane filtration module 9 is connected with described backwash valve 5 with described product water valve 4 respectively via pipeline, the side of described membrane filtration module 9 is connected with described dense water valve 8 with described upper draining valve 3 respectively via pipeline, described backwashing pump 7 is connected with described membrane filtration module 9 upper ends by described backwash valve 5 with described dosing pump 6, and described air valve 10 is between described water intaking valve 1 and described membrane filtration module 9.
Below referring to accompanying drawing.
Fig. 1 is the equipment schematic diagram for cleaning membrane filtration modules of prior art, and this equipment comprises water intaking valve 1, lower draining valve 2, upper draining valve 3, produces water valve 4, backwash valve 5, dosing pump 6, backwashing pump 7, dense water valve 8 and membrane filtration module 9.In actual use, by described water intaking valve 1 water inlet, by described dense water valve 8 drainings, by described product water valve 4, produce water, by described backwashing pump 7, carry out backwash water inlet, by described dosing pump 6, carry out maintainability and clean dosing.
Fig. 2 is according to the equipment schematic diagram for pulsed cleaning membrane filtration modules of the present utility model.This equipment comprises water intaking valve 1, lower draining valve 2, upper draining valve 3, produce water valve 4, backwash valve 5, dosing pump 6, backwashing pump 7, dense water valve 8, membrane filtration module 9 and air valve 10, wherein, the lower end of described membrane filtration module 9 is connected with described lower draining valve 2 with described water intaking valve 1 respectively via pipeline, the upper end of described membrane filtration module 9 is connected with described backwash valve 5 with described product water valve 4 respectively via pipeline, the side of described membrane filtration module 9 is connected with described dense water valve 8 with described upper draining valve 3 respectively via pipeline, described backwashing pump 7 is connected with described membrane filtration module 9 upper ends by described backwash valve 5 with described dosing pump 6, and described air valve 10 is between described water intaking valve 1 and described membrane filtration module 9.In actual use, by described water intaking valve 1 water inlet, by described dense water valve 8 drainings, by described product water valve 4, produce water, by described air valve 10, add compressed air, by described backwashing pump 7, carry out backwash water inlet, by described dosing pump 6, carry out maintainability and clean dosing.
The technical solution of the utility model by adding pulsed gas agitating step order in maintainability cleaning process, by air valve 10, add compressed air, solved following two problems of the prior art: the one, required long soaking time, this can take a large amount of effective filtration times, the absolute aquifer yield of system is reduced, if soak time is too short, DeGrain; The 2nd, conventional dosing maintainability cleans herb liquid and fails to give full play to its effect.
The specific operation process of using the equipment of pulsed cleaning membrane filtration modules of the present utility model to clean membrane filtration module is as follows:
1. dosing backwash: open backwash valve 5 and upper draining valve 3, open backwashing pump 7 and dosing pump 6 is squeezed into membrane filtration module 9 by liquid;
2. pulse air stirs and soaks: close backwash valve 5, in reservation, draining valve 3 is opened the discharge that is beneficial to gas.At interval of within 2-3 minute, opening compressed air, stir 30-60 second, can the immersion of stop pulse gas agitating after so carrying out 3-5 time;
3. discharge liquid: open backwash valve 5 and upper draining valve 3 and lower draining valve 2, open backwashing pump 7 liquid is discharged.
In operating process, the water yield of the membrane filtration module 9 after the tolerance of gas agitating should guarantee to stop to stir takes 80% left and right of the chamber water yield, is unlikely tolerance excessive and the liquid in membrane filtration module 9 is rushed out entirely.
Major advantage of the present utility model is:
By pulsed gas agitating air purge, there is following improvement:
1. by pulsed gas agitating, realized in immersion and film silk has been carried out the physical cleaning of gas scouring simultaneously, made the surface contamination of film silk clean and be recovered by the strengthening gas of short time.
2. by gas, clean when washing surface contaminant off, film silk near surface liquor strength may reduce drug effect because contacting with film silk surface contaminant to consume to reduce, pulsed gas agitating mixes liquid simultaneously, film silk surface liquor strength is improved, strengthens the effect that biology and chemical contamination recover.
3. in this way, soak time can have certain shortening, and the effective water-yielding capacity of film system is improved simultaneously.
Below in conjunction with accompanying drawing 3, further describe benefit of the present utility model.
Accompanying drawing 3 are prior aries with according to the effect contrast figure of the equipment for pulsed cleaning membrane filtration modules of the present utility model.Fig. 3 has compared membrane filtration module and has soaked the front pressure reduction Kpa of (right side cylinder) pollution afterwards, pressure reduction Kpa and pressure reduction rate of descent after cleaning via general immersion (left side cylinder) and gas agitating.From accompanying drawing 3, can find out, compared to adopting general cleaning process of soaking, adopt the gas agitating immersion process of the equipment of pulsed cleaning membrane filtration modules of the present utility model that pressure reduction after cleaning is obviously declined, pressure reduction rate of descent is obviously promoted, thereby has confirmed that the equipment of pulsed cleaning membrane filtration modules of the present utility model has good effect.
Although for the object being aware and understand, the utility model is described in detail, but after having read present specification, those skilled in the art will be appreciated that, do not departing under the prerequisite of spirit of the present utility model and essence, can carry out various modifications and change to the utility model, within these modifications and change all fall into appended claims and the included scope of content of equal value thereof.
Claims (5)
1. the equipment for pulsed cleaning membrane filtration modules, it is characterized in that, described equipment comprises water intaking valve (1), lower draining valve (2), upper draining valve (3), produce water valve (4), backwash valve (5), dosing pump (6), backwashing pump (7), dense water valve (8), membrane filtration module (9) and air valve (10), wherein, the lower end of described membrane filtration module (9) is connected with described lower draining valve (2) with described water intaking valve (1) respectively via pipeline, the upper end of described membrane filtration module (9) is connected with described backwash valve (5) with described product water valve (4) respectively via pipeline, the side of described membrane filtration module (9) is connected with described dense water valve (8) with described upper draining valve (3) respectively via pipeline, described backwashing pump (7) is connected with described membrane filtration module (9) upper end by described backwash valve (5) with described dosing pump (6), and described air valve (10) is positioned between described water intaking valve (1) and described membrane filtration module (9).
2. equipment as claimed in claim 1, is characterized in that, described membrane filtration module (9) is a kind of in flat, tubular type, rolling, capillary type or doughnut formula membrane filtration module.
3. equipment as claimed in claim 1, is characterized in that, described membrane filtration module (9) is ultrafiltration membrance filter assembly or micro-filtrate membrane filtration assembly.
4. equipment as claimed in claim 1, is characterized in that, the quantity of described membrane filtration module (9) is one or more.
5. equipment as claimed in claim 1, is characterized in that, described air valve (10) is spherical air valve, square air valve or flat-top shape air valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320882888.7U CN203750426U (en) | 2013-12-30 | 2013-12-30 | Device applicable to pulse type washing membrane filtration assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320882888.7U CN203750426U (en) | 2013-12-30 | 2013-12-30 | Device applicable to pulse type washing membrane filtration assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203750426U true CN203750426U (en) | 2014-08-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320882888.7U Expired - Lifetime CN203750426U (en) | 2013-12-30 | 2013-12-30 | Device applicable to pulse type washing membrane filtration assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN203750426U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478016A (en) * | 2015-12-14 | 2016-04-13 | 广东创源节能环保有限公司 | Automatic back washing and scraping tubular membrane filtering device |
| CN106986421A (en) * | 2017-03-29 | 2017-07-28 | 苏州立升净水科技有限公司 | Water cleaning systems |
| CN106986422A (en) * | 2017-03-29 | 2017-07-28 | 苏州立升净水科技有限公司 | Purifier |
| CN107522260A (en) * | 2016-06-21 | 2017-12-29 | 海南立昇净水科技实业有限公司 | A kind of manual purifier with self power generation and automatic back-flushing function |
| CN108367250A (en) * | 2016-01-22 | 2018-08-03 | 住友电气工业株式会社 | The operating method and filter device of filter device |
-
2013
- 2013-12-30 CN CN201320882888.7U patent/CN203750426U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478016A (en) * | 2015-12-14 | 2016-04-13 | 广东创源节能环保有限公司 | Automatic back washing and scraping tubular membrane filtering device |
| CN105478016B (en) * | 2015-12-14 | 2018-08-14 | 广东创源节能环保有限公司 | A kind of automatic backwash scraping tubular membrane filter device |
| CN108367250A (en) * | 2016-01-22 | 2018-08-03 | 住友电气工业株式会社 | The operating method and filter device of filter device |
| CN107522260A (en) * | 2016-06-21 | 2017-12-29 | 海南立昇净水科技实业有限公司 | A kind of manual purifier with self power generation and automatic back-flushing function |
| CN106986421A (en) * | 2017-03-29 | 2017-07-28 | 苏州立升净水科技有限公司 | Water cleaning systems |
| CN106986422A (en) * | 2017-03-29 | 2017-07-28 | 苏州立升净水科技有限公司 | Purifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
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| CX01 | Expiry of patent term |