CN114797482A - Cleaning process for online automatic back-cleaning film - Google Patents
Cleaning process for online automatic back-cleaning film Download PDFInfo
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- CN114797482A CN114797482A CN202210522173.4A CN202210522173A CN114797482A CN 114797482 A CN114797482 A CN 114797482A CN 202210522173 A CN202210522173 A CN 202210522173A CN 114797482 A CN114797482 A CN 114797482A
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- pipe
- liquid medicine
- electromagnetic valve
- water
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- 238000004140 cleaning Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000003814 drug Substances 0.000 claims abstract description 78
- 239000007788 liquid Substances 0.000 claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000012528 membrane Substances 0.000 claims abstract description 44
- 238000011001 backwashing Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 11
- 239000010865 sewage Substances 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 3
- 210000003437 trachea Anatomy 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
- B01D2321/04—Backflushing
Abstract
The invention provides a cleaning process for an online automatic back-cleaning film, and relates to the technical field of cleaning of a soft abrasive disc. This belt cleaning device of online automatic backwashing flexible membrane, including the membrane stack structure, the membrane stack structure is including a support frame seat, end plate, horizontal pole, straight tube, diaphragm, first U type pipe and second U type pipe, the top front and back side of support frame seat all with the bottom side fixed connection of end plate, the equal fixedly connected with horizontal pole in front and back side between the top of end plate, the equidistance is provided with a plurality of straight tube between the end plate. Through letting the liquid medicine in the liquid medicine case flow in the second communicating pipe, rivers in the anti-flushing water case flow in the third communicating pipe, let the mixed liquid flow direction straight tube of water and liquid medicine enter into the diaphragm, fill into the air in the air guide pipe through the drive fan, the water pump begins to draw water simultaneously, carries out the backwashing to the diaphragm is inside simultaneously, need not to dismantle the diaphragm alright wash the inside of diaphragm and get rid of the mud, and the cleaning efficiency is higher.
Description
Technical Field
The invention relates to the technical field of cleaning of soft abrasive discs, in particular to a cleaning process for automatically back-cleaning a soft sheet film on line.
Background
The membrane assembly consists of a membrane unit, a central water producing pipe, a sealing locking plate, a pressing sealing cover, a locking nut and an O-shaped sealing ring.
When transmembrane pressure difference reaches 0.25Mpa or continuously operates for three months, the membrane needs to be chemically cleaned on line, so that the membrane can be maintained and stably operated, the membrane is mostly manually disassembled and cleaned at present, the cleaning efficiency is low, equipment needs to be suspended for a long time, and the normal operation of an equipment system is influenced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a cleaning process for automatically backwashing a film on line, which solves the problems that the efficiency of manually disassembling and cleaning the film is low, and the equipment needs to be suspended for a long time to influence the normal operation of an equipment system.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a cleaning device for online automatic reverse cleaning of a flexible sheet membrane comprises a membrane stack structure, wherein the membrane stack structure comprises a support base, end plates, cross rods, straight pipes, membranes, a first U-shaped pipe and a second U-shaped pipe, the front side and the rear side of the top end of the support base are fixedly connected with the bottom sides of the end plates, the cross rods are fixedly connected with the front side and the rear side between the top ends of the end plates, a plurality of straight pipes are arranged between the end plates at equal intervals, the two ends of each straight pipe penetrate through the end plates, a plurality of membranes are uniformly distributed on the straight pipes and are communicated with the corresponding straight pipes, one ends of the straight pipes are communicated with the first U-shaped pipe at equal intervals, the other ends of the straight pipes are communicated with the second U-shaped pipe at equal intervals, the upper middle parts of the first U-shaped pipe and the second U-shaped pipe are communicated with one end of a first pipe, the first pipes on the same side of the second U-shaped pipe are communicated with the second U-shaped pipe through first communication pipes respectively, the first communicating pipe is communicated with the air guide pipe through a fifth conduit, one end of the air guide pipe is communicated with an air outlet of the fan, the first conduit at the same side of the first U-shaped pipe is communicated with the third communicating pipe, the third communicating pipe is communicated with the second communicating pipe through a fourth conduit arranged at an equal distance, the third communicating pipe is communicated with one side bottom of the liquid medicine box through the third conduit, one side top end of the liquid medicine box is communicated with a water outlet of the liquid medicine suction pump through the first medicine feeding pipe, a water inlet of the liquid medicine suction pump is communicated with one side bottom of the original medicine box through the second medicine feeding pipe, the third communicating pipe is communicated with one side bottom of the back flushing box through the second conduit, the third communicating pipe is communicated with a water inlet of the water pump through a first return pipe, and the water outlet of the water pump is communicated with one end of the sewage discharge pipe.
Preferably, the tail end of the air guide pipe is sequentially provided with a flow meter, a fourth electromagnetic valve and a first one-way valve, and the communication part of the fifth guide pipe and the air guide pipe is positioned between the first one-way valve and the fourth electromagnetic valve.
Preferably, the membrane stack structure can be provided with a plurality of membrane stack structures, and the top end of the membrane stack structure is lower than the bottom ends of the liquid medicine tank and the back flushing water tank.
Preferably, the second conduit is provided with a second electromagnetic valve and a second one-way valve in sequence.
Preferably, a third electromagnetic valve and a third one-way valve are sequentially arranged on the third conduit.
Preferably, a first solenoid valve is arranged on the first return pipe.
Preferably, the inside of each membrane is provided with a film and a flow channel network.
Preferably, the cleaning process for the online automatic back-cleaning of the film comprises the following steps:
s1, firstly, pumping liquid medicine in a raw medicine box into a liquid medicine box through a liquid medicine suction pump, then closing a first electromagnetic valve, simultaneously opening a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve, enabling the liquid medicine in the liquid medicine box to flow into a second communicating pipe, enabling water in a reverse flushing water box to flow into a third communicating pipe, and enabling mixed liquid of the water and the liquid medicine to flow to a first U-shaped pipe on a membrane stack structure;
s2, enabling a mixture of liquid medicine and water entering the first U-shaped pipe to enter the diaphragm through each straight pipe, enabling the mixture to enter the first communicating pipe through the second U-shaped pipe, closing the fourth electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve when the flow meter displays that water flows out of the upper end of the air guide pipe, and simultaneously opening the first electromagnetic valve;
s3, then fill air into the air duct through the drive fan, the water pump begins to draw water simultaneously for the liquid medicine mixture in first communicating pipe, second U type pipe, straight tube and the diaphragm flows to second U type pipe, carries out the backwashing to the diaphragm is inside simultaneously, and the liquid medicine and the mud and sewage mixture that press to second U type pipe flow to the water pump along second communicating pipe and third communicating pipe, discharge from the blow off pipe at last.
(III) advantageous effects
The invention provides a cleaning process for an online automatic back-cleaning film. The method has the following beneficial effects:
the invention pumps the liquid medicine in the original medicine box into the liquid medicine box through the liquid medicine suction pump, then closes the first electromagnetic valve, simultaneously opens the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve, so that the liquid medicine in the liquid medicine box flows into the second communicating pipe, the water in the reverse flushing water box flows into the third communicating pipe, so that the mixed liquid of the water and the liquid medicine flows to the first U-shaped pipe on the membrane stack structure, the mixture of the liquid medicine and the water in the first U-shaped pipe enters the membrane through each straight pipe, then enters the first communicating pipe through the second U-shaped pipe, when the flow meter shows that the water flows out from the upper end of the air guide pipe, the fourth electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are closed, simultaneously the first electromagnetic valve is opened, then the air is filled into the air guide pipe through the driving fan, simultaneously the water pump starts to pump, so that the liquid medicine mixture in the first communicating pipe, the second U-shaped pipe, the straight pipes and the membrane flows to the second U-shaped pipe, simultaneously to the inside back washing that carries on of diaphragm, the liquid medicine that presses to second U type pipe and mud and dirt mixture flow to the water pump along second communicating pipe and third communicating pipe, discharge from the blow off pipe at last, need not to dismantle the diaphragm alright wash the inside of diaphragm and get rid of mud, the cleaning efficiency is higher to need not long-time pause equipment, not influence the normal operating of equipment system.
Drawings
FIG. 1 is a schematic view of the left side of the overall structure of the present invention;
FIG. 2 is a right side view of the overall structure of the present invention;
FIG. 3 is a schematic view of the overall structure of the membrane stack structure of the present invention;
FIG. 4 is a schematic view showing the connection relationship between the diaphragm and the straight tube according to the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 1;
FIG. 6 is an enlarged view at B of FIG. 1;
FIG. 7 is an enlarged view at C of FIG. 1;
fig. 8 is an enlarged view at D in fig. 1.
Wherein, 1, a membrane stack structure; 2. a first U-shaped pipe; 3. a raw medicine box; 4. a liquid medicine box; 5. a backwash tank; 6. a liquid medicine suction pump; 7. a water pump; 8. a fan; 9. an air duct; 10. a first return pipe; 11. a blow-off pipe; 12. a first medicine feeding tube; 13. a second medicine feeding tube; 14. a first solenoid valve; 15. a first check valve; 16. a second U-shaped tube; 17. a first communication pipe; 18. a support base; 19. a straight pipe; 20. a first conduit; 21. a membrane; 22. a second solenoid valve; 23. a second one-way valve; 24. a second conduit; 25. a third electromagnetic valve; 26. a third check valve; 27. a third conduit; 28. a second communicating pipe; 29. a third communicating pipe; 30. a fourth conduit; 31. a fifth conduit; 32. a fourth solenoid valve; 33. a flow meter; 34. a cross bar; 35. and an end plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-8, an embodiment of the present invention provides an online cleaning device for automatically cleaning a soft sheet membrane, which includes a membrane stack structure 1, wherein the membrane stack structure 1 includes a support base 18, an end plate 35, cross rods 34, straight pipes 19, membranes 21, a first U-shaped pipe 2 and a second U-shaped pipe 16, front and rear sides of a top end of the support base 18 are fixedly connected to a bottom side of the end plate 35, the front and rear sides between top ends of the end plate 35 are fixedly connected to the cross rods 34, a plurality of straight pipes 19 are equidistantly arranged between the end plates 35, two ends of each straight pipe 19 penetrate through the end plate 35, a plurality of membranes 21 are uniformly distributed on each straight pipe 19, the membranes 21 are respectively communicated with the corresponding straight pipes 19, one end of each straight pipe 19 is respectively communicated with the first U-shaped pipe 2 at equal intervals, the other end of each straight pipe 19 is respectively communicated with the second U-shaped pipe 16 at equal intervals, upper middle portions of the first U-shaped pipe 2 and the second U-shaped pipe 16 are respectively communicated with one end of the first guide pipe 20, the first conduits 20 on the same side of the second U-shaped pipe 16 are respectively communicated through a first communicating pipe 17, the first communicating pipe 17 is communicated with an air guide pipe 9 through a fifth conduit 31, one end of the air guide pipe 9 is communicated with an air outlet of a fan 8, the first conduits 20 on the same side of the first U-shaped pipe 2 are all communicated through a third communicating pipe 29, the third communicating pipe 29 is communicated with a second communicating pipe 28 through a fourth conduit 30 arranged at an equal distance, the third communicating pipe 29 is communicated with the bottom end of one side of the liquid medicine box 4 through a third conduit 27, the top end of one side of the liquid medicine box 4 is communicated with a water outlet of the liquid medicine suction pump 6 through a first medicine feeding pipe 12, a water inlet of the liquid medicine suction pump 6 is communicated with the bottom end of one side of the original medicine box 3 through a second medicine feeding pipe 13, the third communicating pipe 29 is communicated with the bottom end of one side of the reverse flushing water box 5 through a second conduit 24, the third communicating pipe 29 is communicated with a water inlet of the water pump 7 through a first return pipe 10, the water outlet of the water pump 7 is communicated with one end of the sewage draining pipe 11.
The tail end of the air duct 9 is sequentially provided with a flowmeter 33, a fourth electromagnetic valve 32 and a first one-way valve 15, the communication part of the fifth conduit 31 and the air duct 9 is positioned between the first one-way valve 15 and the fourth electromagnetic valve 32, the fourth electromagnetic valve 32 is opened to play a role of pressure relief, so that liquid medicine and water in the liquid medicine tank 4 and the backwash water tank 5 can flow into the second communication pipe 28 and the third communication pipe 29, and the first one-way valve 15 plays a role of preventing the liquid medicine from flowing into the air inlet machine 8 together with water.
The membrane stack structure 1 can have a plurality of, and the top of membrane stack structure 1 is less than the bottom of liquid medicine case 4 and backwash water tank 5, and the liquid medicine in the liquid medicine case 4 of being convenient for and the water in the backwash water tank 5 can flow into membrane stack structure 1 and wash diaphragm 21.
The second conduit 24 is sequentially provided with a second electromagnetic valve 22 and a second one-way valve 23, the second electromagnetic valve 22 is used for controlling the opening and closing of the second conduit 24, and the second one-way valve 23 prevents the back-flushed sewage from flowing into the liquid medicine tank 4.
The third conduit 27 is sequentially provided with a third electromagnetic valve 25 and a third one-way valve 26, the third electromagnetic valve 25 is used for controlling the opening and closing of the third conduit 27, and the second one-way valve 23 prevents the backflushed sewage from flowing into the backflushing water tank 5.
The first return pipe 10 is provided with a first solenoid valve 14, and the first return pipe 10 is closed by the first solenoid valve 14 when the chemical liquid tank 4 and the back flush tank 5 inject the chemical liquid and the water into the second communicating pipe 28 and the third communicating pipe 29, thereby preventing the chemical liquid and the water from flowing to the water pump 7.
The inside of the membrane 21 is provided with a film and a flow passage network, and sludge is intercepted by the membrane 21 through the interception function of the membrane 21.
A cleaning process for an online automatic back-cleaning film comprises the following steps:
s1, firstly, pumping the liquid medicine in a raw medicine box 3 into a liquid medicine box 4 through a liquid medicine suction pump 6, then closing a first electromagnetic valve 14, simultaneously opening a second electromagnetic valve 22, a third electromagnetic valve 25 and a fourth electromagnetic valve 32, enabling the liquid medicine in the liquid medicine box 4 to flow into a second communicating pipe 28, enabling the water in a reverse flushing water box 5 to flow into a third communicating pipe 29, and enabling the mixed liquid of the water and the liquid medicine to flow to a first U-shaped pipe 2 on a membrane stack structure 1;
s2, the mixture of the liquid medicine and the water entering the first U-shaped pipe 2 enters the diaphragm 21 through each straight pipe 19, then enters the first communicating pipe 17 through the second U-shaped pipe 16, and when the flow meter 33 shows that water flows out from the upper end of the air guide pipe 9, the fourth electromagnetic valve 32, the second electromagnetic valve 22 and the third electromagnetic valve 25 are closed, and the first electromagnetic valve 14 is opened;
s3, then, air is filled into the air guide pipe 9 through the driving fan 8, meanwhile, the water pump 7 starts to pump water, so that the liquid medicine mixture in the first communication pipe 17, the second U-shaped pipe 16, the straight pipe 19 and the diaphragm 21 flows to the second U-shaped pipe 16, meanwhile, the inside of the diaphragm 21 is reversely cleaned, the liquid medicine and sludge mixture pressing to the second U-shaped pipe 16 flows to the water pump 7 along the second communication pipe 28 and the third communication pipe 29, and finally, the liquid medicine and sludge mixture is discharged from the sewage discharge pipe 11.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a belt cleaning device of online automatic backwashing film which characterized in that: comprises a membrane stack structure (1), wherein the membrane stack structure (1) comprises a support base (18), an end plate (35), a cross rod (34), straight pipes (19), diaphragms (21), a first U-shaped pipe (2) and a second U-shaped pipe (16), the front side and the rear side of the top end of the support base (18) are fixedly connected with the bottom side of the end plate (35), the front side and the rear side between the top ends of the end plate (35) are fixedly connected with the cross rod (34), a plurality of straight pipes (19) are arranged between the end plates (35) at equal intervals, two ends of each straight pipe (19) penetrate through the end plate (35), a plurality of diaphragms (21) are uniformly distributed on each straight pipe (19), each diaphragm (21) is communicated with the corresponding straight pipe (19), one end of each straight pipe (19) is communicated with the first U-shaped pipe (2) at equal intervals, the other end of each straight pipe (19) is communicated with the second U-shaped pipe (16) at equal intervals, the upper middle parts of the first U-shaped pipe (2) and the second U-shaped pipe (16) are communicated with one end of a first conduit (20), the first conduit (20) on the same side of the second U-shaped pipe (16) is respectively communicated with a first communicating pipe (17), the first communicating pipe (17) is communicated with an air guide pipe (9) through a fifth conduit (31), one end of the air guide pipe (9) is communicated with an air outlet of a fan (8), the first conduit (20) on the same side of the first U-shaped pipe (2) is communicated with a third communicating pipe (29), the third communicating pipe (29) is communicated with a second communicating pipe (28) through a fourth conduit (30) arranged at equal intervals, the third communicating pipe (29) is communicated with the bottom end of one side of the liquid medicine box (4) through a third conduit (27), the top end of one side of the liquid medicine box (4) is communicated with a water outlet of a liquid medicine suction pump (6) through a first upper liquid medicine pipe (12), the water inlet of liquid medicine suction pump (6) is through second medicine loading pipe (13) and one side bottom intercommunication of former medical kit (3), third communicating pipe (29) are through second pipe (24) and one side bottom intercommunication of backwash water tank (5), third communicating pipe (29) are through the water inlet intercommunication of first back flow (10) with water pump (7), the delivery port of water pump (7) and the one end intercommunication of blow off pipe (11).
2. The cleaning device for the on-line automatic backwashing of the film according to claim 1, wherein: the tail end of the air guide pipe (9) is sequentially provided with a flowmeter (33), a fourth electromagnetic valve (32) and a first one-way valve (15), and the communication part of the fifth guide pipe (31) and the air guide pipe (9) is positioned between the first one-way valve (15) and the fourth electromagnetic valve (32).
3. The cleaning device for the on-line automatic backwashing of the film according to claim 1, wherein: the membrane stack structure (1) can be provided with a plurality of membrane stack structures, and the top end of the membrane stack structure (1) is lower than the bottom ends of the liquid medicine tank (4) and the backwash water tank (5).
4. The cleaning device for the on-line automatic backwashing of the film according to claim 1, wherein: the second guide pipe (24) is sequentially provided with a second electromagnetic valve (22) and a second one-way valve (23).
5. The cleaning device for the on-line automatic backwashing of the film according to claim 1, wherein: and a third electromagnetic valve (25) and a third one-way valve (26) are sequentially arranged on the third conduit (27).
6. The cleaning device for the on-line automatic backwashing of the film according to claim 1, wherein: the first return pipe (10) is provided with a first electromagnetic valve (14).
7. The cleaning device for the on-line automatic backwashing of the film according to claim 1, wherein: the interior of the membrane (21) is provided with a film and a flow passage network.
8. The cleaning process of the on-line automatic back-cleaning film according to claim 1, characterized in that: the method comprises the following steps:
s1, firstly, pumping liquid medicine in a raw medicine box (3) into a liquid medicine box (4) through a liquid medicine suction pump (6), then closing a first electromagnetic valve (14), simultaneously opening a second electromagnetic valve (22), a third electromagnetic valve (25) and a fourth electromagnetic valve (32), enabling the liquid medicine in the liquid medicine box (4) to flow into a second communicating pipe (28), enabling water in a backwashing water box (5) to flow into a third communicating pipe (29), and enabling mixed liquid of the water and the liquid medicine to flow to a first U-shaped pipe (2) on a membrane stack structure (1);
s2, the mixture of the liquid medicine and the water in the first U-shaped pipe (2) enters the diaphragm (21) through each straight pipe (19), then enters the first communication pipe (17) through the second U-shaped pipe (16), and when the flow meter (33) displays that water flows out of the upper end of the air guide pipe (9), the fourth electromagnetic valve (32), the second electromagnetic valve (22) and the third electromagnetic valve (25) are closed, and the first electromagnetic valve (14) is opened at the same time;
s3, then fill into the air in the trachea (9) through drive fan (8), water pump (7) begin simultaneously and draw water for first communicating pipe (17), second U type pipe (16), the liquid medicine mixture flow direction second U type pipe (16) in straight tube (19) and diaphragm (21), carry out the backwashing to diaphragm (21) inside simultaneously, liquid medicine and the mud and sewage mixture that press to second U type pipe (16) flow to water pump (7) along second communicating pipe (28) and third communicating pipe (29), discharge from blow off pipe (11) at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210522173.4A CN114797482A (en) | 2022-05-13 | 2022-05-13 | Cleaning process for online automatic back-cleaning film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210522173.4A CN114797482A (en) | 2022-05-13 | 2022-05-13 | Cleaning process for online automatic back-cleaning film |
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| CN114797482A true CN114797482A (en) | 2022-07-29 |
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| CN202210522173.4A Pending CN114797482A (en) | 2022-05-13 | 2022-05-13 | Cleaning process for online automatic back-cleaning film |
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| CA2787762A1 (en) * | 2012-08-09 | 2014-02-09 | Newterra Inc. | Method and apparatus for cleaning a filtration cassette of a membrane bio-reactor |
| CN107899427A (en) * | 2017-12-18 | 2018-04-13 | 湖州鼎泰净水科技有限公司 | A kind of MBR membrane stacks on-line cleaning system and cleaning method |
| CN207973565U (en) * | 2018-02-01 | 2018-10-16 | 浙江省环境工程有限公司 | Soft sheet type MBR film advanced waste treatment systems |
| CN109453670A (en) * | 2018-12-26 | 2019-03-12 | 上海禅睿实业有限公司 | A kind of electrodialysis membrane stack cleaning method |
| CN113209831A (en) * | 2021-05-31 | 2021-08-06 | 南京纳亿工程技术有限公司 | Flat ceramic membrane stack |
| CN216367432U (en) * | 2021-11-29 | 2022-04-26 | 浙江中诚环境研究院有限公司 | Membrane module cleaning device |
-
2022
- 2022-05-13 CN CN202210522173.4A patent/CN114797482A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2787762A1 (en) * | 2012-08-09 | 2014-02-09 | Newterra Inc. | Method and apparatus for cleaning a filtration cassette of a membrane bio-reactor |
| CN107899427A (en) * | 2017-12-18 | 2018-04-13 | 湖州鼎泰净水科技有限公司 | A kind of MBR membrane stacks on-line cleaning system and cleaning method |
| CN207973565U (en) * | 2018-02-01 | 2018-10-16 | 浙江省环境工程有限公司 | Soft sheet type MBR film advanced waste treatment systems |
| CN109453670A (en) * | 2018-12-26 | 2019-03-12 | 上海禅睿实业有限公司 | A kind of electrodialysis membrane stack cleaning method |
| CN113209831A (en) * | 2021-05-31 | 2021-08-06 | 南京纳亿工程技术有限公司 | Flat ceramic membrane stack |
| CN216367432U (en) * | 2021-11-29 | 2022-04-26 | 浙江中诚环境研究院有限公司 | Membrane module cleaning device |
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