CN103566770B - A kind of gas mixing type water off-line cleaning device for reverse osmosis membrane - Google Patents

A kind of gas mixing type water off-line cleaning device for reverse osmosis membrane Download PDF

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Publication number
CN103566770B
CN103566770B CN201310535343.3A CN201310535343A CN103566770B CN 103566770 B CN103566770 B CN 103566770B CN 201310535343 A CN201310535343 A CN 201310535343A CN 103566770 B CN103566770 B CN 103566770B
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reverse osmosis
water
pressure vessel
cleaning
cleaning device
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CN201310535343.3A
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CN103566770A (en
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罗海龙
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FOSHAN QINGQI WATER TREATMENT TECHNOLOGY Co Ltd
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FOSHAN QINGQI WATER TREATMENT TECHNOLOGY Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/131Reverse-osmosis

Abstract

The present invention proposes a kind of saturating off-line cleaning device of gas mixing type water anti-seepage membrane, comprising and clean water tank, pneumatic diaphragm pump, accurate filter and pressure vessel for reverse osmosis, the water outlet of described cleaning water tank is connected through the entrance of described pneumatic diaphragm pump with described accurate filter; It is provided with flushing inlet channel between the outlet of described accurate filter and described pressure vessel for reverse osmosis; It is provided with partial circulating system between the water outlet of described pneumatic diaphragm pump and the water-in of described cleaning water tank; It is provided with gas cleaning unit between described accurate filter and described pressure vessel for reverse osmosis. The gas mixing type water off-line cleaning device for reverse osmosis membrane of the present invention, this washing unit is provided with gas cleaning unit and water pipe blow-through simultaneously, single only anti-loaded permeable membrane shell vertical is placed, and can effectively carry out aqueous vapor distribution and balance, strengthens the washing away of reverse osmosis membrane, avoids dead angle. The off-line cleaning device of the present invention adopts gas-vapor mix cleaning way, enhances the cleaning dynamics to reverse osmosis membrane greatly, effectively prevent and cleans dead angle.

Description

A kind of gas mixing type water off-line cleaning device for reverse osmosis membrane
Technical field
The present invention relates to a kind of water treating equipment washing unit, it is specifically related to a kind of gas mixing type water off-line cleaning device for reverse osmosis membrane.
Background technology
Along with more and more being applied in the industries such as reusing sewage, sea water desaltination, food, chemical industry of reverse osmosis technology, the diversification of purposes, the situation also more sophisticated that reverse osmosis membrane is contaminated, pollution level also more and more adds seriously. Traditional reverse osmosis washing unit is all on-line cleaning device, during cleaning, membrane module is all horizontal placement, current scour is relied on separately to clean, it is difficult to clean clean by the reverse osmosis membrane in cleaning system and recover, the long-term accumulated of dirt in reverse osmosis membrane easily causes the damage of reverse osmosis membrane, causing membrane element pressure reduction in working process to rise, delay rate, flow reduction, even can not normal operation.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art, a kind of off-line cleaning device for reverse osmosis membrane with gas mixing type water function is provided, adopt single only anti-loaded permeable membrane shell vertical to place, can effectively carry out air water distribution and balance, strengthen the washing away of reverse osmosis membrane, avoid dead angle.
The technical scheme of the present invention is achieved in that
A kind of gas mixing type water off-line cleaning device for reverse osmosis membrane, comprises and cleans water tank, pneumatic diaphragm pump, accurate filter and pressure vessel for reverse osmosis, and the water outlet of described cleaning water tank is connected through the entrance of described pneumatic diaphragm pump with described accurate filter; It is provided with flushing inlet channel between the outlet of described accurate filter and described pressure vessel for reverse osmosis, it is provided with between the other end of described pressure vessel for reverse osmosis and the water-in of described cleaning water tank and flushes out waterpipe; It is provided with partial circulating system between the water outlet of described pneumatic diaphragm pump and the water-in of described cleaning water tank; It is provided with gas cleaning unit between described accurate filter and described pressure vessel for reverse osmosis.
Preferably, described gas cleaning unit comprises the air compressor machine through pipeline connection, the process of gas source three linked piece, compressed air inlet valve, and is provided with air vacuum breaker between described compressed air inlet valve and described flushing inlet channel.
Preferably, before described pressure vessel for reverse osmosis in described flushing inlet channel be provided with dense water clean water intaking valve, described in flush out waterpipe be provided with dense water clean reverse flow valve; One end of described partial circulating system is connected the water-in with described cleaning water tank is connected with described, and the other end is connected with described pneumatic diaphragm pump outlet.
Preferably, the modes of emplacement of described pressure vessel for reverse osmosis is vertical, and the air flow quantity of described compressed air inlet valve is 0.5��3m3/ h/ props up film shell, and the discharge of described dense water side water inlet valve is 3��10m3/ h/ props up film shell.
Compared to prior art, the useful effect of the present invention is: the gas mixing type water off-line cleaning device for reverse osmosis membrane of the present invention, this washing unit is provided with gas cleaning unit and rinse water pipeline simultaneously, and single only anti-loaded permeable membrane shell vertical placement, can effectively carry out aqueous vapor distribution and balance, strengthen the washing away of reverse osmosis membrane, avoid dead angle. The gas-vapor mix cleaning way of the present invention, enhances the cleaning dynamics to reverse osmosis membrane greatly, effectively prevent and cleans dead angle.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of gas mixing type water off-line cleaning device for reverse osmosis membrane of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of gas mixing type water off-line cleaning device for reverse osmosis membrane of the present invention, comprising and clean water tank 2, pneumatic diaphragm pump 4, accurate filter 9 and pressure vessel for reverse osmosis 16, the water outlet cleaning water tank 2 is connected through the entrance of pneumatic diaphragm pump 4 with accurate filter 9; By rinsing, inlet channel is connected with pressure vessel for reverse osmosis 16 in the outlet of accurate filter 9, it is provided with between the other end of pressure vessel for reverse osmosis 16 and cleaning water tank 2 water-in and flushes out waterpipe, it is provided with dense water side in flushing inlet channel before pressure vessel for reverse osmosis 16 and cleans water intaking valve 15, flush out waterpipe and be provided with dense water cleaning reverse flow valve 17; It is provided with partial circulating system between the water outlet of pneumatic diaphragm pump 4 and the water-in cleaning water tank 2, one end of this partial circulating system is connected with the water-in cleaning water tank 2, the other end is connected with the outlet of pneumatic diaphragm pump 4, and this partial circulating system is provided with cleans little reverse flow valve 7; In the present invention, gas cleaning unit it is provided with further between accurate filter 9 and pressure vessel for reverse osmosis 16, gas cleaning unit comprises the air compressor machine 11 through pipeline connection, the process of gas source three linked piece 12, compressed air inlet valve 13, and is provided with air vacuum breaker 14 between compressed air inlet valve 13 and flushing inlet channel.
Further, the front and back of accurate filter 9 are respectively equipped with inlet valve 8 and outlet valve 10, and the modes of emplacement of pressure vessel for reverse osmosis 16 is vertical. During cleaning, first in cleaning water tank 2, configure scavenging solution, then open pneumatic diaphragm pump water intaking valve 3, pneumatic diaphragm pump outlet valve 5 and clean little reverse flow valve 7, start pneumatic diaphragm pump 4, first scavenging solution is carried out partial circulating homogenization treatment. Then opening accurate filter inlet valve 8, outlet valve 10, water intaking valve 15 is cleaned in dense water side, reverse flow valve 17 is cleaned in dense water side, then closes the little reverse flow valve 7 of cleaning, and according to the stifled situation of the dirt of membrane element, it is 3��10m that the water yield is cleaned in adjustment3/ h/ props up film shell. After the water yield is stable, opening compressed air inlet valve 13, according to the stifled situation of the dirt of membrane element, adjustment air capacity is 0.5��3m3/ h/ props up film shell, it is achieved the gas-vapor mix off-line of reverse osmosis cleans.
Preferably, in cleaning process, within the pressure-controlling 4bar of reverse osmosis membrane assembly scavenging solution import, it is preferable that between 1.5��3.0bar.
The present invention utilizes the off-line cleaning device of gas-vapor mix function, can effectively strengthen aqueous vapor souring, removes the dirt that reverse osmosis membrane inside is difficult to clean. The pressure vessel for reverse osmosis of washing unit is without side water-in and water-out interface, bottom port blocks the water producing pipe of membrane element, when avoiding aqueous vapor to shuffle, product water side is impacted, and the end cap center from top that intakes enters, and done in bottom and be conducive to gas-vapor mix, uniform cloth gas design. The end cap at top has the setting kept apart and produce water and dense water, produces water and is directly connected with air, it does not have arranges and produces water cleaning backflow; Mainly in order to cause diaphragm and the excessive compression producing water side during product water when avoiding aqueous vapor to shuffle, avoid damage membrane element; Dense water directly rushes end caps and is back to cleaning water tank.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (5)

1. a gas mixing type water off-line cleaning device for reverse osmosis membrane, comprise and clean water tank, pneumatic diaphragm pump, accurate filter and pressure vessel for reverse osmosis, it is characterized in that, the water outlet of described cleaning water tank is connected through the entrance of described pneumatic diaphragm pump with described accurate filter; It is provided with flushing inlet channel between the outlet of described accurate filter and described pressure vessel for reverse osmosis, it is provided with between the other end of described pressure vessel for reverse osmosis and the water-in of described cleaning water tank and flushes out waterpipe; It is provided with partial circulating system between the water outlet of described pneumatic diaphragm pump and the water-in of described cleaning water tank; It is provided with gas cleaning unit between described accurate filter and described pressure vessel for reverse osmosis; Described gas cleaning unit comprises the air compressor machine through pipeline connection, the process of gas source three linked piece, compressed air inlet valve, and is provided with air vacuum breaker between described compressed air inlet valve and described flushing inlet channel.
2. a kind of gas mixing type water off-line cleaning device for reverse osmosis membrane according to claim 1, it is characterized in that, before described pressure vessel for reverse osmosis in described flushing inlet channel be provided with dense water clean water intaking valve, described in flush out waterpipe be provided with dense water clean reverse flow valve; One end of described partial circulating system is connected with the water-in of described cleaning water tank, and the other end is connected with described pneumatic diaphragm pump outlet.
3. a kind of gas mixing type water off-line cleaning device for reverse osmosis membrane according to claim 2, it is characterised in that, the modes of emplacement of described pressure vessel for reverse osmosis is vertical.
4. a kind of gas mixing type water off-line cleaning device for reverse osmosis membrane according to claim 3, it is characterised in that, the air flow quantity of described compressed air inlet valve is 0.5��3m3/ h/ props up film shell.
5. a kind of gas mixing type water off-line cleaning device for reverse osmosis membrane according to claim 4, it is characterised in that, the discharge of described dense water side water inlet valve is 3��10m3/ h/ props up film shell.
CN201310535343.3A 2013-10-31 2013-10-31 A kind of gas mixing type water off-line cleaning device for reverse osmosis membrane Active CN103566770B (en)

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WO2016074145A1 (en) * 2014-11-11 2016-05-19 崔楠 Filter gas backwash device
CN114288865B (en) * 2021-12-31 2022-09-20 河南同生环境工程有限公司 Offline air vibration cleaning method for reverse osmosis membrane

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202010520U (en) * 2011-03-16 2011-10-19 上海依科绿色工程有限公司 Off-line cleaning device for reverse osmosis membrane

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202010520U (en) * 2011-03-16 2011-10-19 上海依科绿色工程有限公司 Off-line cleaning device for reverse osmosis membrane

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