CN102179179B - Vertical roll membrane filtering device and cleaning method thereof - Google Patents
Vertical roll membrane filtering device and cleaning method thereof Download PDFInfo
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- CN102179179B CN102179179B CN 201110079456 CN201110079456A CN102179179B CN 102179179 B CN102179179 B CN 102179179B CN 201110079456 CN201110079456 CN 201110079456 CN 201110079456 A CN201110079456 A CN 201110079456A CN 102179179 B CN102179179 B CN 102179179B
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Abstract
The invention discloses a vertical roll membrane filtering device, which comprises a vertically-placed membrane shell. The vertical roll membrane filtering device is characterized in that a roll membrane element adapting to the membrane shell is arranged in the membrane shell; an upper sealing head and a lower sealing head are respectively arranged on the upper end and the lower end of the membrane shell; the roll membrane element is internally provided with a permeate output pipe, two ends of the permeate output pipe are provided with an upper permeate outlet and a lower permeate outlet which respectively pass through the upper sealing head and the lower sealing head to extend outside, and two ends of the membrane shell are respectively provided with an upper flow opening and a lower flow opening. Due to the adoption of the structure, the membrane shell and the roll membrane element are vertically placed, the vertical roll membrane filtering device can be used for more effectively cleaning the membrane surface by means of micro bubbles formed by gas and water, and is help to improve recovery rate of materials with high value, prolong service life of the membrane and shorten cleaning time so as to reduce operation cost of the membrane device to ensure that the membrane system is widely applied to material separation and reclaimed water recycling.
Description
Technical field
The present invention relates to a kind of roll membrane filtering device; The invention still further relates to a kind of cleaning method of roll membrane filtering device.Belong to a kind of separation technology field or water supply and drainage, environmental technology field.
Background technology
Membrane separation technique refers under the motive force effect, utilizes the selection permeability of film, makes the separated technology of each component in the mixture.Membrane separation technique is widely used in the fields such as water supply and drainage, food and drink, pharmacy, chemical industry.Vigorously advocate in the trend of also carry out earnestly energy-saving and emission-reduction, recycling economy in mankind nowadays society, membrane technology will be appeared suddenly more in the application aspect feed separation and the middle water reuse.
Film separates can be divided into micro-filtration, ultrafiltration, nanofiltration and counter-infiltration by the incision of matter size.Shape by film, membrane module roughly is divided into hollow-fibre membrane, tubular membrane, board-like film and rolled film.The membrane area that rolled film fills with its unit volume is large, flow passage design, the operation power cost is low and application quantity is maximum, and application is the widest.
In the prior art, rolled membrane module fills 1 ~ 7 membrane component by pressure vessel and single pressure vessel and forms, the transversely arranged combination of membrane module often forms a cover membrane separation device by pretreatment system, pressure charging system, pipeline, instrument, electrical control, support etc.
Affect film separation system operation most critical factor and be and suppress that film pollutes and how film more effectively cleans after polluting, particularly film separates and is applied to feed separation, purification, concentrated and larger middle water reuse.Effective air water cleaning method cheaply, because horizontal membrane module can not be used, assembly in service (pressure vessel) though in enter a small amount of gas, will cause gas in the membrane component upper-part centralized, cause the damage of membrane component.On the one hand, when film was applied to feed separation, because separated material is common than the relatively simple easier polluted membrane of water treatment, film needed the higher cleaning agent that cleaning frequency, composition are more, price is higher, more scavenging period.It is worth noting that more separated material is worth large; material in the horizontal membrane module is had to other liquid displacement out before cleaning or interim the shutdown; cause separated object yield low, cause like this that device operating cost is high, membrane lifetime is short, affected the application that film separates.On the other hand, film separates when being applied to middle water reuse, because middle water is various waste water reach discharge standard substantially after suitable PROCESS FOR TREATMENT water, compare simple with film separation of produced pure water, water purification, desalinization etc., the water inlet complicated, the factor of polluted membrane is many, and film also needs more effective preliminary treatment, higher cleaning frequency, more scavenging period.More can not effectively discharge because of the water in the horizontal membrane module, purging system needs the water dilution in the higher Chemical cleaning agent concentration tunicle.Film is high because of cleaning frequency, clean thoroughly, the life-span is short, affected equally the application that film is separated in middle water reuse.
Summary of the invention
The invention provides a kind of easy cleaning, few with chemical agent clean, cleaning charge is low, effective, roll membrane filtering device and the cleaning method of film long service life.
In order to solve the problems of the technologies described above, a kind of vertical roll type membrane filtering device of the present invention, comprise and erect the film shell of placing, the rolled film element that adapts to it is installed in the described film shell, described film shell upper and lower end is separately installed with upper and lower seal head, have through the liquid efferent duct in the described rolled film element, should see through the filtrate output tube two ends and be provided with and pass respectively upper and lower seal head and extend in the outer upper and lower liquid outlet that sees through, film shell two ends also are respectively arranged with upper and lower current opening.
Be respectively arranged with upper and lower thrust ring between described rolled film element and the upper and lower seal head.
Described upper current opening is arranged on the seal head, and described lower current opening is arranged at film shell following side.
Described rolled film element is a kind of in coiled reverse osmosis membrane element, rolling NF membrane element, spiral wound membrane component and the rolling microfiltration membranes element.
A kind of cleaning method of vertical roll type membrane filtering device may further comprise the steps:
A. forward flushing from top to bottom, lower current opening and upper and lower the outlet through liquid are opened upper current opening water inlet, duration 5 ~ 15s;
B. air-water flushing, upper current opening is opened, and upper and lowerly sees through the liquid outlet and opens lower current opening water inlet, air inlet, duration 5 ~ 30s;
C. big yield forward flushing from top to bottom, lower current opening and upper and lower the outlet through liquid are opened, and Xian, duration 5 ~ 15s are rushed in upper current opening big yield water inlet;
D. recover to filter, every 30 minutes ~ 24 hours repeating step a to c.
A kind of cleaning method of vertical roll type membrane filtering device may further comprise the steps:
A. forward flushing from top to bottom, lower current opening, the upper and lower outlet through liquid are opened upper current opening water inlet, duration 10 ~ 30s;
B. air-water flushing, upper current opening and upper and lowerly see through the liquid outlet and open lower current opening water inlet, air inlet flushing, duration 30 ~ 60s;
C. big yield just washes, and lower current opening and upper and lower the outlet through liquid are opened, upper current opening big yield water inlet flushing, duration 10 ~ 30s;
D. emptying, upper current opening is opened with the emptier that is connected through liquid outlet connection, and lower current opening is opened emptying with lower through the liquid outlet;
E. cyclic chemical cleans, and opens current opening and upper and lower through the liquid outlet, starts circulation dosing purging system, circulates into cleaning agent 1 ~ 30 minute duration, pressure 0.2 ~ 0.4mpa from lower current opening;
F. Chemical cleaning is strengthened in aerating, the air inlet of lower current opening and cleaning agent, and the time of single cycle is 30 ~ 60s, continues 3 ~ 10 times;
G. cut off circulation dosing purging system and emptying, lower current opening and upper and lower the outlet through liquid are opened, and upper current opening and the upper high-order emptier that sees through the liquid outlet are opened the cleaning agent in the emptier;
H. forward flushing from top to bottom, upper current opening big yield forward flushing continues 1 ~ 10 minute;
G. recover to filter.
The invention has the beneficial effects as follows: this vertical roll type membrane filtering device is owing to adopting said structure, and film shell and rolled film element are erect and placed, and can carry out more effective cleaning to the film surface by means of the micro-bubble of gas and water formation.Help to improve the rate of recovery of high value material, prolong film service life, reduce that scavenging period becomes and the operating cost that reduced film device, so that the film system is more extensive in the application of feed separation and middle water reuse.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is structural representation of the present invention.
The specific embodiment
With reference to Fig. 1, a kind of vertical roll type membrane filtering device of the present invention, comprise and erect the film shell 1 of placing, the rolled film element 2 that adapts to it is installed in the described film shell 1, described film shell 1 upper and lower end is separately installed with upper and lower seal head 3,4, have through liquid efferent duct 5 in the described rolled film element 2, should see through filtrate output tube 5 two ends and be provided with and pass respectively upper and lower seal head 3,4 and extend in the outer upper and lower liquid outlet 6,7 that sees through, film shell 1 two ends also are respectively arranged with upper and lower current opening 8,9.When filtering, former water enters film shell 1 from lower current opening 9, after cutting one group of membrane component, part flows out from upper current opening 8, since the effect of hydraulic pressure, former water section see through reenter in the film bag that film enters membrane component 2 through liquid efferent duct 5 for see through liquid, seeing through liquid can be from seeing through liquid outlet 6 or seeing through liquid outlet 7 outputs down.This vertical roll type membrane filtering device is owing to adopting said structure, and film shell 1 and rolled film element 2 are erect and placed, and can carry out more effective cleaning to the film surface by means of little water vapor bubbles of gas and water formation.Help to improve the high value material the rate of recovery, prolong film service life, reduce that scavenging period becomes and the operating cost that reduced film device, so that the film system is more extensive in the application of feed separation and middle water reuse.
In the present embodiment, be respectively arranged with upper and lower thrust ring 10,11 between described rolled film element 2 and the upper and lower seal head 3,4, can adapt to the current forward and oppositely to the impact of volume membrane component, make the rolled film element obtain good location.Described upper current opening 8 is arranged on the seal head 3, and described lower current opening 9 is arranged at film shell 1 following side, is convenient to the installation location of connecting pipe and the exhaust in the device.Described rolled film element 2 is a kind of in coiled reverse osmosis membrane element, rolling NF membrane element, spiral wound membrane component and the rolling microfiltration membranes element.
In order to strengthen cleaning performance, another kind of cleaning method of the present invention is a kind of cleaning method of vertical roll type membrane filtering device, may further comprise the steps:
A. forward flushing from top to bottom, lower current opening 9 and upper and lowerly see through liquid outlet 6,7 and open upper current opening 8 water inlets, duration 5 ~ 15s;
B. air-water flushing, upper current opening 8 is opened, and upper and lowerly sees through liquid outlet 6,7 and opens lower current opening 9 water inlets, air inlet, duration 5 ~ 30s;
C. big yield forward flushing from top to bottom, lower current opening 9 and upper and lowerly see through liquid outlet 6,7 and open, Xian, duration 5 ~ 15s are rushed in upper current opening 8 big yields water inlet;
D. recover to filter, every 30 minutes ~ 24 hours repeating step a to c.
In order further to strengthen the Chemical cleaning effect, another kind of cleaning of the present invention aspect is a kind of cleaning method of vertical roll type membrane filtering device, may further comprise the steps:
A. forward flushing from top to bottom, upper and lowerly sees through liquid outlet 6,7 and opens upper current opening 8 water inlets, duration 10 ~ 30s lower current opening 9;
B. air-water flushing, upper current opening 8 and upper and lowerly see through liquid outlet 6,7 and open lower current opening 9 water inlets, air inlet flushing, duration 30 ~ 60s;
C. big yield just washes, lower current opening 9 and upper and lowerly see through liquid outlet 6,7 and open upper current opening 8 big yields water inlet flushing, duration 10 ~ 30s;
D. emptying, upper current opening 8 is opened with the emptier that are connected through liquid outlet 6 connections, and lower current opening 9 is opened emptying with lower through liquid outlet 7;
E. cyclic chemical cleans, and opens current opening 8 and upper and lower through liquid outlet 6,7, starts circulation dosing purging system, advances cleaning agent, 1 ~ 30 minute duration, pressure 0.2 ~ 0.4mpa from lower current opening 9 circulations;
F. Chemical cleaning is strengthened in aerating, lower current opening 9 air inlets and cleaning agent, and the time of single cycle is 30 ~ 60s, continues 3 ~ 10 times;
G. cut off circulation dosing purging system and emptying, lower current opening 9 and upper and lowerly see through liquid outlet 6,7 and open, upper current opening 8 and the upper high-order emptier that sees through liquid outlet 6 are opened the cleaning agent in the emptier;
H. forward flushing from top to bottom, upper current opening 8 big yield forwards flushing continues 1 ~ 10 minute;
I. recover to filter.
The above only is preferential embodiment of the present invention, as long as realize that with basic identical means the technical scheme of the object of the invention all belongs within protection scope of the present invention.
Claims (5)
1. vertical roll type membrane filtering device, comprise and erect the film shell (1) of placing, it is characterized in that being equipped with in the described film shell (1) the rolled film element (2) that adapts to it, on the described film shell (1), the lower end is separately installed with, lower seal head (3,4), have in the described rolled film element (2) through liquid efferent duct (5), should see through filtrate output tube (5) two ends is provided with respectively and passes, lower seal head (3,4) extend in outward upper, see through down liquid outlet (6,7), film shell (1) two ends also are respectively arranged with, lower current opening (8,9), can carry out more effective cleaning to the film surface by means of the micro-bubble of gas and water formation, described rolled film element (2) is with upper, lower seal head (3,4) be respectively arranged with between, lower thrust ring (10,11).
2. vertical roll type membrane filtering device according to claim 1 is characterized in that described upper current opening (8) is arranged on the seal head (3), and described lower current opening (9) is arranged at film shell (1) following side.
3. vertical roll type membrane filtering device according to claim 1 is characterized in that described rolled film element (2) is a kind of in coiled reverse osmosis membrane element, rolling NF membrane element, spiral wound membrane component and the rolling microfiltration membranes element.
4. the cleaning method of a kind of vertical roll type membrane filtering device as claimed in claim 1 is characterized in that may further comprise the steps:
a
.Forward flushing from top to bottom, lower current opening (9) and upper and lowerly see through liquid outlet (6,7) and open, upper current opening (8) is intake, duration 5 ~ 15s;
b
.Air-water flushing, upper current opening (8) is opened, and upper and lowerly sees through liquid outlet (6,7) and opens lower current opening (9) water inlet, air inlet, duration 5 ~ 30s;
c
.Big yield forward flushing from top to bottom, lower current opening (9) and upper and lowerly see through liquid outlet (6,7) and open, upper current opening (8) big yield is intake and is rushed Xian, duration 5 ~ 15s;
d
.Recover to filter, every 30 minutes ~ 24 hours repeating step a to c.
5. the cleaning method of a kind of vertical roll type membrane filtering device as claimed in claim 1 is characterized in that may further comprise the steps:
a
.Forward flushing from top to bottom, upper and lowerly sees through liquid outlet (6,7) and opens upper current opening (8) water inlet, duration 10 ~ 30s lower current opening (9);
b
.Air-water flushing, upper current opening (8) and upper and lowerly see through liquid outlet (6,7) and open lower current opening (9) water inlet, air inlet flushing, duration 30 ~ 60s;
c
.Big yield just washes, lower current opening (9) and upper and lowerly see through liquid outlet (6,7) and open upper current opening (8) big yield water inlet flushing, duration 10 ~ 30s;
d
.Emptying, upper current opening (8) sees through the emptier that liquid outlet (6) connects and opens with being connected, and lower current opening (9) and the lower liquid that sees through export (7) and opens emptying;
e
.Cyclic chemical cleans, and opens current opening (8) and upper and lower through liquid outlet (6,7), starts circulation dosing purging system, advances cleaning agent, 1 ~ 30 minute duration, pressure 0.2 ~ 0.4MPa from lower current opening (9) circulation;
f
.Chemical cleaning is strengthened in aerating, lower current opening (9) air inlet and cleaning agent, and the time of single cycle is 30 ~ 60s, continues 3 ~ 10 times;
g
.Cut off circulation dosing purging system and emptying, lower current opening (9) and upper and lowerly see through liquid outlet (6,7) and open, upper current opening (8) and upward see through the high-order emptier that liquid exports (6) and open the cleaning agent that emptier is interior;
h
.Forward flushing from top to bottom, the flushing of upper current opening (8) big yield forward continues 1 ~ 10 minute;
i
.Recover to filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110079456 CN102179179B (en) | 2011-03-31 | 2011-03-31 | Vertical roll membrane filtering device and cleaning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110079456 CN102179179B (en) | 2011-03-31 | 2011-03-31 | Vertical roll membrane filtering device and cleaning method thereof |
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| CN102179179A CN102179179A (en) | 2011-09-14 |
| CN102179179B true CN102179179B (en) | 2013-09-18 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6268490B2 (en) * | 2013-09-17 | 2018-01-31 | 東レ株式会社 | Separation membrane module and operation method, separation membrane element, thrust load holding member, thrust load adjustment holding member |
| CN107073401A (en) | 2014-10-22 | 2017-08-18 | 科氏滤膜系统公司 | Use the membrane module system and operating method of perineurium sealing cover and intermission aeration |
| USD779631S1 (en) | 2015-08-10 | 2017-02-21 | Koch Membrane Systems, Inc. | Gasification device |
| CN105536542A (en) * | 2015-12-14 | 2016-05-04 | 广东创源节能环保有限公司 | Gas-ejecting self-cleaning type roll membrane filtration apparatus and gas permeation rate detection method using filtration apparatus |
| CN105536543A (en) * | 2015-12-14 | 2016-05-04 | 广东创源节能环保有限公司 | Vibrating and vertical type spiral-wound membrane filtration device |
| CN105879692A (en) * | 2016-04-28 | 2016-08-24 | 佘宏栓 | Turbulence-method vertical offline reverse osmosis membrane cleaning system and method |
| CN106975361B (en) * | 2017-04-14 | 2022-09-06 | 广东创源节能环保有限公司 | Vertical spiral membrane vibration filter equipment |
| CN108771969A (en) * | 2018-06-12 | 2018-11-09 | 合肥丰洁生物科技有限公司 | One kind prevents from blocking membrane separation device |
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| CN101087641A (en) * | 2004-12-22 | 2007-12-12 | 德雷塞尔有限公司 | The separation of solid particles from the liquid in which they are dispersed |
| CN201719983U (en) * | 2010-07-16 | 2011-01-26 | 国家海洋局天津海水淡化与综合利用研究所 | Rolling type film contactor |
| CN202078860U (en) * | 2011-03-31 | 2011-12-21 | 江门市创源水处理科技有限公司 | Vertical roll type membrane filtering device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087641A (en) * | 2004-12-22 | 2007-12-12 | 德雷塞尔有限公司 | The separation of solid particles from the liquid in which they are dispersed |
| CN201719983U (en) * | 2010-07-16 | 2011-01-26 | 国家海洋局天津海水淡化与综合利用研究所 | Rolling type film contactor |
| CN202078860U (en) * | 2011-03-31 | 2011-12-21 | 江门市创源水处理科技有限公司 | Vertical roll type membrane filtering device |
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Address after: 529000 Guangdong province Jiangmen Jianghai Ca Mau Road No. 1 building two unit Macau Ferry Terminal (self 1A room) Patentee after: GUANGDONG CHUANGYUAN ENERGY SAVING ENVIRONMENTAL PROTECTION CO., LTD. Address before: 529000 Guangdong province Jiangmen Jianghai Ca Mau Road No. 1 building two unit Macau Ferry Terminal (self 1A room) Patentee before: Jiangmen Chuanyuan Environment Technology Co., Ltd. |