CN102107118B - Reverse osmosis safety filter with cleaning function and cleaning method thereof - Google Patents
Reverse osmosis safety filter with cleaning function and cleaning method thereof Download PDFInfo
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- CN102107118B CN102107118B CN 201110005631 CN201110005631A CN102107118B CN 102107118 B CN102107118 B CN 102107118B CN 201110005631 CN201110005631 CN 201110005631 CN 201110005631 A CN201110005631 A CN 201110005631A CN 102107118 B CN102107118 B CN 102107118B
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Abstract
The invention relates to a reverse osmosis safety filter with a cleaning function and a cleaning method thereof, belonging to the technical field of reverse osmosis water treatment systems. The reverse osmosis safety filter with the cleaning function comprises a filter body, wherein a filter element is arranged in the filter body; the filter body is provided with a water outlet valve, a water inlet valve, a cleaning liquid inlet valve, a compressed air inlet valve, an air exhaust valve and a cleaning liquid return valve, wherein the cleaning liquid inlet valve controls entrance of the cleaning liquid; the compressed air inlet valve controls entrance of the compressed air; the air exhaust valve exhausts the compressed air; the cleaning liquid return valve discharges the cleaning liquid; the cleaning liquid inlet valve and the cleaning liquid return valve are arranged at opposite sides of the filter body respectively; one of the cleaning liquid inlet valve and the cleaning liquid return valve is arranged at a water inlet end of the filter element, and the other one is arranged at a water producing end of the filter element; and the compressed air inlet valve and the air exhaust valve are arranged at a water producing end and a water inlet end of the filter body respectively.
Description
Technical field
The present invention relates to a kind of reverse osmosis cartridge filter and cleaning method thereof with cleaning function, belong to the reverse osmosis water treatment system technical field.
Background technology
Counter-infiltration system is the visual plant of global range water quality desalination, is widely used in water-treatment technology field.Former water is before entering reverse osmosis unit, and the process cartridge filter filters the technique that is absolutely necessary.But, increasingly sophisticated along with present raw water quality, the large reverse osmosis system increases, and the filter element replacing cost of cartridge filter has just appeared suddenly out.Especially at present adopt many large flux filter cores, single Zhi Chengben is high, and the annual expense of changing is just particularly considerable.
Filter core of security filter mostly adopts and melts and sprays or folding filter core, and filter type is grossflow filtration, also claims dead-end filtration, pollutant is trapped in the surface of filter core, and along with increasing of cartridge surface pollutant, the water flowing of filter core will descend, drop to certain degree, just need more renew cartridge.Generally be to judge according to the operating pressure before and after the filter core is poor.Surpass certain value and just be considered as the end of run, need more renew cartridge (adopting at present 0.07MPa is the in the majority of terminal point).
The pollutant of cartridge surface is take particle, organic matter as the basis; Owing in the running environment of cartridge filter, do not suppress the composition of microorganism, therefore the organic matter in the enrichment can grow a large amount of microorganisms very soon on cartridge surface, and the coherent substance of growth of microorganism, dead generation can form the compacted zone of the non-constant of water penetration, and this is the main cause that causes the filter core water-flowing amount to descend.And prior art can only solve this problem by renew cartridge more.
Summary of the invention
Technical problem to be solved by this invention provides a kind of reasonable in design, can realize self-cleaning, long service life, drainage is effective, operating cost the is low reverse osmosis cartridge filter with cleaning function.
Another technical problem to be solved by this invention provides a kind ofly can effectively promote the drainage effect, increase service life, easy to operate, the cleaning method that reduces the reverse osmosis cartridge filter of cost.
It is this reverse osmosis cartridge filter with cleaning function that the present invention solves the problems of the technologies described above the technical scheme that adopts, comprise that inside is provided with the filter body of filter core, be provided with outlet valve at filter body, water intaking valve, its design feature is: also be provided with the cleaning liquid feed valve that the control cleaning fluid enters on the described filter body, the compressed air inlet valve that control compressed air enters, the cleaning return valve of the air bleeder valve of discharges compressed air and discharging cleaning fluid, described cleaning liquid feed valve and cleaning return valve arrange respectively the offside of filter body, described cleaning liquid feed valve and water inlet end that is arranged on filter core of cleaning return valve, another is arranged on the product water end (W.E.) of filter core, and described compressed air inlet valve and air bleeder valve setting are separately positioned on product water end (W.E.) and the water inlet end of filter body.
The product water end (W.E.) of filter body of the present invention also is provided with the cleaning drain valve.
The product water end (W.E.) of filter body of the present invention also is provided with drain valve.
Filter body of the present invention is provided with downforce table and pressure gauge.
Cleaning liquid feed valve of the present invention links to each other with clorox tank, sodium hydrogensulfite tank respectively with the cleaning return valve.
Be provided with flushing water pump on the pipeline between cleaning liquid feed valve of the present invention and clorox tank, the sodium hydrogensulfite tank.
The present invention solves the problems of the technologies described above the technical scheme that adopts or a kind of cleaning method of reverse osmosis cartridge filter, and its cleaning step is:
A, in reverse osmosis cartridge filter, add the liquor natrii hypochloritis, soaked 30 minutes;
B, with compressed air from producing the air-blowing of water side;
The mode of c, employing square impact and/or recoil is washed, and during square impact, opens water intaking valve, cleans drain valve, from water intake valve, cleans the drain valve discharging, realization square impact process; During recoil, in the situation of outlet valve maintenance to the pressure of cartridge filter, open outlet valve, open simultaneously and clean drain valve, from the outlet valve water inlet, the discharging of cleaning drain valve realizes back flushing process; To shell fallen pollutant washes away;
D, in reverse osmosis cartridge filter, add sodium hydrogensulfite and neutralize;
F, last closes compression air, with the water inlet end water inlet of clear water from reverse osmosis cartridge filter, the flushing reverse osmosis cartridge filter is finished cleaning.
As preferably, liquor natrii hypochloritis's of the present invention concentration is 1%.
As preferably, the concentration of solution of sodium bisulfite of the present invention is 2%.
As preferably, compressed-air actuated pressure of the present invention is 3Bar.
The present invention compares with prior art and has the following advantages and effect: owing to adopted the liquor natrii hypochloritis to soak, can effectively decompose compacted zone and other foreign material, and can sterilization, sterilization.Owing to adopted the mode of compressed air blowback, can fully effectively remove compacted zone and foreign material, thereby make filter core recover abundant function, raising water penetration.Owing to adopted solution of sodium bisulfite to carry out circulating reduction, can protect reverse osmosis membrane, increase the service life.Use the reverse osmosis cartridge filter of the technology of the present invention, effect is very obvious, can effectively prolong 2～3 times of filter core of security filter life-spans, has significantly reduced operating cost.It is a kind of very practical application technology.
Description of drawings
Fig. 1 is structural representation of the present invention.
Label declaration: clean liquid feed valve 1, clean drain valve 2, outlet valve 3, compressed air inlet valve 4, air bleeder valve 5, drain valve 6, water intaking valve 7, clean return valve 8, downforce table 9, filter body 10, filter core 11, pressure gauge 12, clean feed liquor house steward 13, flushing water pump 14, sodium hydrogensulfite liquid feed valve 15, clorox liquid feed valve 16, clean back liquid house steward 17, sodium hydrogensulfite returns liquid valve 18, clorox returns liquid valve 19, clorox tank 20, sodium hydrogensulfite tank 21, clorox drain valve 22, sodium hydrogensulfite drain valve 23, clorox feed tube 24, sodium hydrogensulfite feed tube 25, sodium hydrogensulfite liquid back pipe 26, clorox liquid back pipe 27.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment 1: as shown in Figure 1, the following part of present embodiment has been described a kind of reverse osmosis cartridge filter with cleaning function, by filter body 10, clean feed liquor house steward 13, flushing water pump 14, clean back liquid house steward 17, clorox tank 20, sodium hydrogensulfite tank 21, clorox feed tube 24, sodium hydrogensulfite feed tube 25, sodium hydrogensulfite liquid back pipe 26, clorox liquid back pipe 27 form.
Be provided with filter core 11 in the filter body 10, the upper end of filter body 10 is water inlet end, and the lower end is the water side.Be provided with downforce table 9 and pressure gauge 12 that gaging pressure is used on the filter body 10.The water inlet end of filter body 10 is provided with and cleans liquid feed valve 1, air bleeder valve 5, water intaking valve 7, and the water side of filter body 10 is provided with and cleans drain valve 2, outlet valve 3, compressed air inlet valve 4, drain valve 6, cleans return valve 8.
Cleaning liquid feed valve 1 links to each other with an end that cleans feed liquor house steward 13, the other end that cleans feed liquor house steward 13 links to each other with clorox feed tube 24, sodium hydrogensulfite feed tube 25, and clorox feed tube 24, sodium hydrogensulfite feed tube 25 link to each other with clorox tank 20, sodium hydrogensulfite tank 21 respectively.Be provided with flushing water pump 14 cleaning feed liquor house steward 13, be respectively arranged with clorox liquid feed valve 16, sodium hydrogensulfite liquid feed valve 15 at clorox feed tube 24, sodium hydrogensulfite feed tube 25.
Cleaning return valve 8 links to each other with an end that cleans back liquid house steward 17, the other end that cleans back liquid house steward 17 links to each other with sodium hydrogensulfite liquid back pipe 26, clorox liquid back pipe 27 respectively, is respectively arranged with at sodium hydrogensulfite liquid back pipe 26, clorox liquid back pipe 27 that sodium hydrogensulfite returns liquid valve 18, clorox returns liquid valve 19.
Also be respectively arranged with clorox drain valve 22, sodium hydrogensulfite drain valve 23 at clorox tank 20, sodium hydrogensulfite tank 21.
During work, open outlet valve 3, water intaking valve 7, water inlet in the water intaking valve 7 is through the filtration of filter core 11, from outlet valve 3 water outlets.
The following part of present embodiment has been described a kind of cleaning method of reverse osmosis cartridge filter.
Open and clean liquid feed valve 1, clean return valve 8, close other valve, adding concentration is 1% liquor natrii hypochloritis in reverse osmosis cartridge filter, soaks 30 minutes;
Close and clean liquid feed valve 1, clean return valve 8, open compressed air inlet valve 4, air bleeder valve 5, from producing the air-blowing of water side, pressure is 3Bar with compressed air;
Adopt the mode of square impact and/or recoil to wash, during square impact, open water intaking valve 7, clean drain valve 2, close other valve, from water intaking valve 7 water inlets, clean drain valve 2 dischargings, realize the square impact process; During recoil, in the situation of outlet valve 3 maintenances to the pressure of cartridge filter, open outlet valve 3, open simultaneously and clean drain valve 2, close other valve, from outlet valve 3 water inlets, 2 dischargings of cleaning drain valve realize back flushing process; To shell fallen pollutant washes away;
Adding concentration and be 2% sodium hydrogensulfite in reverse osmosis cartridge filter neutralizes;
With water intaking valve 7 water inlets of clear water from reverse osmosis cartridge filter, the flushing reverse osmosis cartridge filter is finished cleaning at last.
In addition, need to prove, the specific embodiment described in this specification, the shape of its parts and components, institute's title of being named etc. can be different.Allly conceive equivalence or the simple change that described structure, feature and principle are done according to patent of the present invention, be included in the protection domain of patent of the present invention.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (6)
1. reverse osmosis cartridge filter with cleaning function, comprise that inside is provided with the filter body of filter core, be provided with outlet valve at filter body, water intaking valve, it is characterized in that: also be provided with the cleaning liquid feed valve that the control cleaning fluid enters on the described filter body, the compressed air inlet valve that control compressed air enters, the cleaning return valve of the air bleeder valve of discharges compressed air and discharging cleaning fluid, described cleaning liquid feed valve and cleaning return valve arrange respectively the offside of filter body, described cleaning liquid feed valve and water inlet end that is arranged on filter core of cleaning return valve, another is arranged on the product water end (W.E.) of filter core, and described compressed air inlet valve and air bleeder valve are separately positioned on product water end (W.E.) and the water inlet end of filter body.
2. the reverse osmosis cartridge filter with cleaning function according to claim 1, it is characterized in that: the product water end (W.E.) of described filter body also is provided with the cleaning drain valve.
3. the reverse osmosis cartridge filter with cleaning function according to claim 1, it is characterized in that: the product water end (W.E.) of described filter body also is provided with drain valve.
4. according to claim 1 and 2 or 3 described reverse osmosis cartridge filters with cleaning function, it is characterized in that: described filter body is provided with downforce table and pressure gauge.
5. the reverse osmosis cartridge filter with cleaning function according to claim 4 is characterized in that: described cleaning liquid feed valve with clean return valve and all link to each other with clorox tank, sodium hydrogensulfite tank.
6. the reverse osmosis cartridge filter with cleaning function according to claim 5 is characterized in that: be provided with flushing water pump on the pipeline between described cleaning liquid feed valve and clorox tank, the sodium hydrogensulfite tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110005631 CN102107118B (en) | 2011-01-12 | 2011-01-12 | Reverse osmosis safety filter with cleaning function and cleaning method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110005631 CN102107118B (en) | 2011-01-12 | 2011-01-12 | Reverse osmosis safety filter with cleaning function and cleaning method thereof |
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| CN102107118A CN102107118A (en) | 2011-06-29 |
| CN102107118B true CN102107118B (en) | 2013-02-27 |
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| CN102580537B (en) * | 2012-03-05 | 2014-04-16 | 山西太钢不锈钢股份有限公司 | Method for regenerating filter core of security filter |
| CN105645616B (en) * | 2015-12-28 | 2019-02-26 | 青岛科技大学 | A kind of coking wastewater joint processing system and method |
| CN105478010B (en) * | 2015-12-28 | 2018-04-13 | 青岛科技大学 | A kind of microporous filter and its filtering cleaning method for Treatment of Coking Effluent |
| CN109201644B (en) * | 2018-08-29 | 2021-11-12 | 湖南军信环保股份有限公司 | Cleaning method for bacterial sludge breeding on inner wall of water inlet pipeline of NF/RO membrane unit |
| CN113577893A (en) * | 2021-07-30 | 2021-11-02 | 华能国际电力股份有限公司济宁电厂 | Online cleaning method for large-flow filter element of reverse osmosis cartridge filter |
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| JP3479799B2 (en) * | 1997-09-12 | 2003-12-15 | 株式会社Ｉｎａｘ | Chemical liquid cleaning method and chemical liquid cleaning device for membrane module |
| CN201120256Y (en) * | 2007-10-30 | 2008-09-24 | 张明亮 | Reverse osmosis membrane cleaning apparatus |
| CN201394432Y (en) * | 2008-11-18 | 2010-02-03 | 李继征 | Hollow fiber ultra-filtration membrane washing test machine |
| JP5423184B2 (en) * | 2009-07-03 | 2014-02-19 | 株式会社明電舎 | Filtration membrane module cleaning method and cleaning apparatus |
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Inventor after: Zhang Huibin Inventor after: Guo Wenjie Inventor before: Zhang Huibin |
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Address after: Hangzhou City, Zhejiang province 310011 Gongshu District Xiangyuan Road No. 38 building four floor Zhejiang newspaper printing Patentee after: Hangzhou enpr environmental technology Limited by Share Ltd Address before: Hangzhou City, Zhejiang province 310011 Gongshu District Xiangyuan Road No. 38 building four floor Zhejiang newspaper printing Patentee before: Hangzhou Enpr Water Treatment Technology Co., Ltd. |