CN211800068U - Intelligent management system for running environment of ultrafiltration membrane component - Google Patents
Intelligent management system for running environment of ultrafiltration membrane component Download PDFInfo
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- CN211800068U CN211800068U CN202020187221.5U CN202020187221U CN211800068U CN 211800068 U CN211800068 U CN 211800068U CN 202020187221 U CN202020187221 U CN 202020187221U CN 211800068 U CN211800068 U CN 211800068U
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Abstract
The utility model relates to an milipore filter subassembly operational environment intelligent management system belongs to milipore filter subassembly technical field. Comprises an ultrafiltration system, an online cleaning device and an offline cleaning device; the inlet of a water inlet pump of the ultrafiltration system is connected with a pool to be treated, the outlet of the water inlet pump is connected with a membrane component through a water inlet pipe, an electric water inlet valve is arranged on the water inlet pipe, the other end of the membrane component is connected with a water outlet pipe, the water outlet pipe is connected with a water producing pool, an electric water producing valve is arranged on the water outlet pipe, and a concentrated water discharge pipe is connected with the membrane; the online cleaning device is connected to the back washing pipe; the off-line cleaning device is connected with the medicine barrel through a pipeline and pumps the medicine in the medicine barrel into the circulating medicine washing barrel. The utility model has the advantages that: an off-line cleaning device and an ultrafiltration system are combined together, an ultrasonic cleaning function is added, and full-automatic intelligent control is realized on all operation and cleaning links; the off-line cleaning is not disassembled, the manpower resource is saved, and the cleaning time is greatly shortened by the added ultrasonic cleaning function.
Description
Technical Field
The utility model relates to an milipore filter subassembly operational environment intelligent management system belongs to milipore filter subassembly technical field.
Background
Ultrafiltration is a pressurized membrane separation technique, in which small molecular solutes and solvents are passed through a special membrane with a certain pore size under a certain pressure, while large molecular solutes are not passed through the membrane and remain on one side of the membrane, thus partially purifying the large molecular substances. Ultrafiltration is one of the membrane separation techniques using pressure as the driving force. The purpose is to separate macromolecules from small molecules. In the ultrafiltration process, the aqueous solution flows through the membrane surface under the push of pressure, the solvent (water) and the small-molecule solute permeable membrane which are smaller than the membrane pores become purified liquid (filtrate), and the solute and solute groups which are larger than the membrane pores are intercepted and discharged with the water flow to become concentrated liquid. The ultrafiltration process is dynamic filtration and the separation is accomplished in a flow regime. The solute is only deposited limitedly on the membrane surface, the ultrafiltration rate is attenuated to a certain extent to be balanced, and can be recovered by washing.
The existing ultrafiltration system process is usually provided with an online cleaning device, but the online cleaning device is generally effective to slight membrane pollution, an ultrafiltration membrane needs to be cleaned off line after being severely polluted, the ultrafiltration membrane component needs to be disassembled for manual operation and cleaning in general off-line cleaning, not only manpower and material resources are consumed, but also time is consumed in off-line cleaning, and a general membrane component needs to be cleaned for 2-4 hours, so that normal production is influenced.
Disclosure of Invention
In order to overcome the weak point of above-mentioned prior art, the utility model provides an ultrafiltration membrane subassembly operational environment intelligent management system combines off-line belt cleaning device and ultrafiltration system to place together to increase ultrasonic cleaning function, and carry out intelligent control according to the washing of ultrafiltration system operational parameter to the system.
The utility model discloses a realize through following technical scheme: an ultrafiltration membrane component operation environment intelligent management system is characterized in that: comprises an ultrafiltration system, an online cleaning device and an offline cleaning device;
the ultrafiltration system comprises a water inlet pump, a water inlet pipe, an electric water inlet valve, a membrane module, a water outlet pipe, an electric water production valve, a water production tank, a concentrated water discharge pipe and a PLC (programmable logic controller), wherein the inlet of the water inlet pump is connected with the water tank to be treated, the outlet of the water inlet pump is connected with the membrane module through the water inlet pipe, the electric water inlet valve is installed on the water inlet pipe, the other end of the membrane module is connected with the water outlet pipe, the water outlet pipe is connected with the water production tank, the electric water production valve;
the device comprises a membrane assembly, a water inlet pipe, a water outlet pipe, a membrane assembly, a reverse flushing pipe, a reverse discharge electric valve, a concentrated water discharge pipe, a ditch and a water outlet pipe, wherein the water inlet pipe is provided with a water inlet pressure sensor, the water outlet pipe is provided with an outlet pressure sensor, the water outlet of the membrane assembly is connected with the reverse flushing pipe, the reverse flushing pipe is provided with a reverse flushing pump and an electric reverse flushing valve, the connecting end of the membrane assembly and the water inlet pipe is connected with the reverse discharge pipe;
the online cleaning device comprises an online dosing pipe connected to the back flushing pipe, a check valve and a metering pump are arranged on the online dosing pipe, and the metering pump is connected with a dosing barrel;
the off-line cleaning device comprises a circulating medicine washing barrel, a heater is arranged in the circulating medicine washing barrel, the circulating medicine washing barrel is connected with a membrane assembly through a circulating medicine washing pipeline, a circulating medicine washing pump and a circulating electric valve are arranged on the circulating medicine washing pipeline, the circulating medicine washing barrel is connected with the connecting end of a concentrated water discharge pipe and the membrane assembly through a circulating medicine washing return pipe, the circulating medicine washing barrel is further connected with a trench through an electric emptying valve, the circulating medicine washing barrel is further connected with a medicine adding pump, and the medicine adding pump is connected with the medicine in the medicine barrel through a pipeline and pumps the medicine in the medicine barrel into the circulating medicine washing barrel.
The membrane component is also provided with an ultrasonic device, and the ultrasonic device utilizes the ultra-strong vibration and ultra-stirring of low-power ultrasonic waves to physically clean the membrane.
The circulating medicine washing barrel is also internally provided with a thermometer for measuring the temperature of the medicine.
The medicine adding barrels comprise 3 medicine adding barrels, namely a sodium hydroxide medicine adding barrel, a citric acid medicine adding barrel and a sodium hypochlorite medicine adding barrel.
The medicine barrels comprise 3 medicine barrels, namely a sodium hydroxide medicine barrel, a citric acid medicine barrel and a sodium hypochlorite medicine barrel; the sodium hydroxide medicine barrel, the citric acid medicine barrel and the sodium hypochlorite medicine barrel are respectively connected with the medicine adding pump through electric valves.
The sodium hydroxide medicine barrel, the citric acid medicine barrel and the sodium hypochlorite medicine barrel are internally provided with floating ball level meters for measuring the liquid level height in the medicine barrel.
The PLC controller is respectively connected with a water inlet pump, an electric water inlet valve, an electric water generating valve, a water inlet pressure sensor, an outlet pressure sensor, a backwashing pump, an electric backwashing valve, a reverse discharge electric valve, a concentrated water electric discharge valve, a check valve, a metering pump, a heater, a circulating medicine washing pump, a circulating electric valve, an electric emptying valve, a medicine feeding pump and an ultrasonic device; and the PLC intelligently controls the ultrafiltration membrane component operation environment intelligent management system according to a set program and feedback signals of the water inlet pressure sensor and the outlet pressure sensor.
The utility model has the advantages that: an off-line cleaning device and an ultrafiltration system are combined together, an ultrasonic cleaning function is added, and full-automatic intelligent control is realized on all operation and cleaning links; the off-line cleaning is not disassembled, the manpower resource is saved, and the cleaning time is greatly shortened by the added ultrasonic cleaning function.
Drawings
The invention will be further explained below with reference to the drawings and examples.
Fig. 1 is a schematic view of the structural principle of the present invention.
In the figure: 1. the device comprises a water inlet pump, 2, a water inlet pipe, 3, an electric water inlet valve, 4, a membrane assembly, 5, a water outlet pipe, 6, an electric water generating valve, 7, a water generating pool, 8, a concentrated water discharge pipe, 9, a pool to be treated, 10, a water inlet pressure sensor, 11, an outlet pressure sensor, 12, a backwashing pipe, 13, a backwashing pump, 14, an electric backwashing valve, 15, a reverse discharge pipe, 16, a reverse discharge electric valve, 17, a concentrated water electric discharge valve, 18, an online medicine feeding pipe, 19, a check valve, 20, a metering pump, 21, a medicine feeding barrel, 22, a circulating medicine washing barrel, 23, a heater, 24, a circulating medicine washing pipeline, 25, a circulating medicine washing pump, 26, a circulating electric valve, 27, a circulating medicine washing return pipe, 28, an electric emptying valve, 29, a medicine feeding pump, 30, a medicine barrel, 31, an ultrasonic device, 32, a thermometer, 33 and a floating ball liquid level meter.
Detailed Description
The ultrafiltration membrane component operation environment intelligent management system shown in fig. 1 is characterized in that: comprises an ultrafiltration system, an online cleaning device and an offline cleaning device;
the ultrafiltration system comprises a water inlet pump 1, a water inlet pipe 2, an electric water inlet valve 3, a membrane component 4, a water outlet pipe 5, an electric water production valve 6, a water production pool 7, a concentrated water discharge pipe 8 and a PLC (programmable logic controller), wherein the inlet of the water inlet pump 1 is connected with a pool 9 to be treated, the outlet of the water inlet pump 1 is connected with the membrane component 4 through the water inlet pipe 2, the electric water inlet valve 3 is installed on the water inlet pipe 2, the other end of the membrane component 4 is connected with the water outlet pipe 5, the water outlet pipe 5 is connected with the water production pool 7, the electric water production valve 6 is installed on the water outlet;
the device is characterized in that a water inlet pressure sensor 10 is arranged on the water inlet pipe 2, an outlet pressure sensor 11 is arranged on the water outlet pipe 5, a backwashing pipe 12 is connected to the water outlet of the membrane module 4, a backwashing pump 13 and an electric backwashing valve 14 are arranged on the backwashing pipe 12, the connection end of the membrane module 4 and the water inlet pipe 2 is connected with a reverse discharge pipe 15, the reverse discharge pipe 15 is connected to a concentrated water discharge pipe 8, a reverse discharge electric valve 16 is arranged on the reverse discharge pipe 15, a concentrated water electric discharge valve 17 is arranged on the concentrated water discharge pipe 8, and the tail end of the concentrated water discharge;
the online cleaning device comprises an online dosing pipe 18 connected to the back flushing pipe 12, a check valve 19 and a metering pump 20 are arranged on the online dosing pipe 18, and the metering pump 20 is connected with a dosing barrel 21;
offline cleaning device including circulation medicine washtub 22, be equipped with heater 23 in the circulation medicine washtub 22, circulation medicine washtub 22 is connected membrane module 4 through circulation medicine washing pipeline 24, be equipped with circulation medicine washing pump 25 and circulation motorised valve 26 on the circulation medicine washing pipeline 24, circulation medicine washtub 22 is connected the link of dense water delivery pipe 8 with membrane module 4 through circulation medicine back of the body 27, circulation medicine washtub 22 still passes through electronic atmospheric valve 28 and connects the trench, circulation medicine washtub 22 still is connected with dosing pump 29, dosing pump 29 passes through pipe connection explosive barrel 30 and goes into circulation medicine washtub 22 with the medicine pump in the explosive tub 30.
The membrane module 4 is further provided with an ultrasonic device 31, and the ultrasonic device 31 utilizes ultra-strong vibration and ultra-agitation of low-power ultrasonic waves to physically clean the membrane.
A thermometer 32 is also provided in the circulating drug washing tub 22 for measuring the temperature of the drug.
The medicine adding barrels 21 comprise 3 medicine adding barrels, namely a sodium hydroxide medicine adding barrel, a citric acid medicine adding barrel and a sodium hypochlorite medicine adding barrel.
The medicine barrels 30 comprise 3 medicine barrels, namely a sodium hydroxide medicine barrel, a citric acid medicine barrel and a sodium hypochlorite medicine barrel; the sodium hydroxide medicine barrel, the citric acid medicine barrel and the sodium hypochlorite medicine barrel are respectively connected with the medicine adding pump 29 through electric valves.
The sodium hydroxide medicine barrel, the citric acid medicine barrel and the sodium hypochlorite medicine barrel are internally provided with a floating ball liquid level meter 33 for measuring the liquid level height in the medicine barrel.
The PLC is respectively connected with a water inlet pump 1, an electric water inlet valve 3, an electric water production valve 6, a water inlet pressure sensor 10, an outlet pressure sensor 11, a backwashing pump 13, an electric backwashing valve 14, a reverse discharge electric valve 16, a concentrated water electric discharge valve 17, a check valve 19, a metering pump 20, a heater 23, a circulating medicine washing pump 25, a circulating electric valve 26, an electric emptying valve 28, a medicine feeding pump 29 and an ultrasonic device 31; and the PLC intelligently controls the ultrafiltration membrane component operation environment intelligent management system according to a set program and feedback signals of the water inlet pressure sensor 10 and the outlet pressure sensor 11.
The working principle is as follows:
raw water enters an ultrafiltration system through a water inlet pump 1 and a water inlet pipe 2, in the ultrafiltration process, water solution flows through the membrane surface of a membrane component 4 under the pushing of pressure, a solvent (water) smaller than a membrane hole and a small molecular solute permeable membrane become purified liquid (namely produced water), and the produced water enters a water producing pool 7 for storage. The solute and solute groups larger than the membrane pores are trapped and discharged through the concentrated water discharge pipe 8 with the water flow to become concentrated solution.
The running time of the ultrafiltration system is set to 30min each time, when the ultrafiltration system runs, the electric water inlet valve 3 and the electric water production valve 6 are opened, all other valves are closed, and the opening and closing of the valves are completely and automatically controlled by the PLC without manual operation. After the ultrafiltration system is operated once, backwashing is carried out once (water in the water production pool 7 is used for backwashing through a backwashing pump 13, an electric backwashing valve is arranged on a backwashing pipe 12, backwashing water is discharged to a trench through a backwashing reverse discharge pipe 15, a reverse discharge electric valve 16 is arranged on the reverse discharge pipe 15, backwashing time is determined according to actual operation conditions, the backwashing process only opens the electric backwashing valve 14 and the reverse discharge electric valve 16, other valves are closed, next operation is carried out after backwashing is completed, and the operation is circulated in sequence.
After the ultrafiltration system operates for many times, the membrane module 4 is blocked to a certain extent (also called membrane pollution), and the blocking of the membrane module 4 affects the operation of the system, so that the membrane module 4 needs to be cleaned after the blocking, and the blocking degree is judged according to the difference (transmembrane pressure difference) between the values of the inlet pressure sensor 10 and the outlet pressure sensor 11 of the ultrafiltration system. Here, it is considered that when the transmembrane pressure difference reaches 120Kpa, the membrane module 4 should be subjected to online cleaning using an alkaline chemical (NaOH), an acidic chemical (citric acid), and a bactericide (sodium hypochlorite), and the criterion for determining whether online cleaning is effective is that the ultrafiltration system can be continuously operated for 15 times or more after online cleaning, and the transmembrane pressure difference does not reach 120Kpa in the 15 times. And the online cleaning is carried out by adopting sodium hydroxide, citric acid and sodium hypochlorite.
Sodium hydroxide, citric acid and sodium hypochlorite enter the ultrafiltration membrane module 4 through the online dosing pipe 18, a metering pump 20 and a check valve 19 are arranged on the online dosing pipe 18, and the concentration of acid and alkali agents entering the membrane module 4 is preferably 500ppm after online cleaning.
After the ultrafiltration system runs for a long time, the membrane module can be seriously blocked (seriously polluted), and at the moment, the online cleaning has no obvious effect, and the offline cleaning is needed. At present, most ultrafiltration systems are cleaned off line, and an ultrafiltration membrane component is generally disassembled and then manually cleaned, and then is installed back in situ after cleaning.
The off-line cleaning device and the ultrafiltration system are combined together, and off-line cleaning can be carried out without disassembling the membrane component. The medicine in the medicine tank 30 is cleaned. During off-line cleaning, can earlier go into circulation medicine washtub 22 with the sodium hypochlorite medicament with the certain proportion pump in with alkaline medicament, heat the medicament to 30-35 degrees (accessible thermometer 32 survey) through heater 23 in circulation medicine washtub 22, then close all valves except circulation motorised valve 26, the motorised valve on the circulation medicine washback pipe, open circulation medicine washing pump 25, open ultrasonic device 31 simultaneously, begin to wash with alkaline, utilize the superstrong vibration and the super stirring effect of low-power ultrasonic wave, on the one hand, carry out physical cleaning to the membrane, on the other hand can improve chemical cleaning rate and efficiency, make the membrane wash more high-efficient. The cleaning time is preferably 30min, and can be adjusted according to actual effect. After the alkaline agent is cleaned, the agent in the circulating agent washing barrel 22 is emptied through the electric emptying valve 28, acid washing can be carried out, only an acidic agent needs to be added during acid washing, and the acid washing step and the method are the same as those of alkaline washing. After the alkali washing and the acid washing are finished, the ultrafiltration system can be normally operated, and the electric valve 26 on the circulating electric valve and the electric valve on the circulating medicine washing return pipe are closed in the process of the ultrafiltration system.
The pH of the alkaline sodium hydroxide solution in the barrel 30 is kept at 11-12, and the pH of the acidic citric acid solution is kept at 2-3.
The operation of the whole ultrafiltration system can be completely automatically and intelligently controlled by the PLC and the setting of parameters, and only the medicament is required to be periodically supplemented into the medicament barrel 30.
Claims (7)
1. An ultrafiltration membrane component operation environment intelligent management system is characterized in that: comprises an ultrafiltration system, an online cleaning device and an offline cleaning device;
the ultrafiltration system comprises a water inlet pump (1), a water inlet pipe (2), an electric water inlet valve (3), a membrane module (4), a water outlet pipe (5), an electric water production valve (6), a water production tank (7), a concentrated water discharge pipe (8) and a PLC (programmable logic controller), wherein the inlet of the water inlet pump (1) is connected with a water tank (9) to be treated, the outlet of the water inlet pump (1) is connected with the membrane module (4) through the water inlet pipe (2), the electric water inlet valve (3) is installed on the water inlet pipe (2), the other end of the membrane module (4) is connected with the water outlet pipe (5), the water outlet pipe (5) is connected with the water production tank (7), the electric water production valve (6) is installed on the water outlet;
the device is characterized in that a water inlet pressure sensor (10) is arranged on the water inlet pipe (2), an outlet pressure sensor (11) is arranged on the water outlet pipe (5), a backwashing pipe (12) is connected to the water outlet of the membrane assembly (4), a backwashing pump (13) and an electric backwashing valve (14) are arranged on the backwashing pipe (12), the connecting end of the membrane assembly (4) and the water inlet pipe (2) is connected with a reverse discharge pipe (15), the reverse discharge pipe (15) is connected to a concentrated water discharge pipe (8), a reverse discharge electric valve (16) is arranged on the reverse discharge pipe (15), a concentrated water discharge electric discharge valve (17) is arranged on the concentrated water discharge pipe (8), and the tail end of the concentrated water discharge;
the online cleaning device comprises an online dosing pipe (18) connected to the back flushing pipe (12), a check valve (19) and a metering pump (20) are arranged on the online dosing pipe (18), and the metering pump (20) is connected with a dosing barrel (21);
off-line belt cleaning device including circulation medicine washtub (22), be equipped with heater (23) in circulation medicine washtub (22), membrane module (4) is connected through circulation medicine washing pipeline (24) in circulation medicine washtub (22), be equipped with circulation medicine washing pump (25) and circulation motorised valve (26) on circulation medicine washing pipeline (24), thick water discharge pipe (8) and the link of membrane module (4) are connected through circulation medicine washtub (22) back pipe (27), circulation medicine washtub (22) still are connected the trench through electronic atmospheric valve (28), circulation medicine washtub (22) still are connected with dosing pump (29), dosing pump (29) are connected medicine barrel (30) through the pipeline and are gone into circulation medicine washtub (22) with the medicine pump in medicine barrel (30).
2. The ultrafiltration membrane module operating environment intelligent management system of claim 1, wherein: the membrane component (4) is also provided with an ultrasonic device (31), and the ultrasonic device (31) utilizes the ultra-strong vibration and ultra-stirring of low-power ultrasonic waves to physically clean the membrane.
3. The ultrafiltration membrane module operating environment intelligent management system of claim 1, wherein: the circulating medicine washing barrel (22) is also internally provided with a thermometer (32) for measuring the temperature of the medicine.
4. The ultrafiltration membrane module operating environment intelligent management system of claim 1, wherein: the medicine adding barrels (21) comprise 3 medicine adding barrels, namely a sodium hydroxide medicine adding barrel, a citric acid medicine adding barrel and a sodium hypochlorite medicine adding barrel.
5. The ultrafiltration membrane module operating environment intelligent management system of claim 1, wherein: the medicine barrels (30) comprise 3 medicine barrels, namely a sodium hydroxide medicine barrel, a citric acid medicine barrel and a sodium hypochlorite medicine barrel; the sodium hydroxide medicine barrel, the citric acid medicine barrel and the sodium hypochlorite medicine barrel are respectively connected with a medicine adding pump (29) through electric valves.
6. The ultrafiltration membrane module operating environment intelligent management system of claim 5, wherein: the sodium hydroxide medicine barrel, the citric acid medicine barrel and the sodium hypochlorite medicine barrel are internally provided with a floating ball liquid level meter (33) for measuring the liquid level height in the medicine barrel.
7. The ultrafiltration membrane module operating environment intelligent management system of claim 1, wherein: the PLC is respectively connected with a water inlet pump (1), an electric water inlet valve (3), an electric water production valve (6), a water inlet pressure sensor (10), an outlet pressure sensor (11), a backwashing pump (13), an electric backwashing valve (14), a reverse discharge electric valve (16), a concentrated water electric discharge valve (17), a check valve (19), a metering pump (20), a heater (23), a circulating medicine washing pump (25), a circulating electric valve (26), an electric emptying valve (28), a medicine feeding pump (29) and an ultrasonic device (31); and the PLC intelligently controls the ultrafiltration membrane component operation environment intelligent management system according to a set program and feedback signals of the water inlet pressure sensor (10) and the outlet pressure sensor (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020187221.5U CN211800068U (en) | 2020-02-20 | 2020-02-20 | Intelligent management system for running environment of ultrafiltration membrane component |
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| CN202020187221.5U CN211800068U (en) | 2020-02-20 | 2020-02-20 | Intelligent management system for running environment of ultrafiltration membrane component |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113769587A (en) * | 2021-08-30 | 2021-12-10 | 国网新疆电力有限公司电力科学研究院 | Filter element on-site off-line cleaning device |
| CN114849343A (en) * | 2022-04-29 | 2022-08-05 | 鞍山市方业科技生化厂 | Method for adding filter aid into filter system |
-
2020
- 2020-02-20 CN CN202020187221.5U patent/CN211800068U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113769587A (en) * | 2021-08-30 | 2021-12-10 | 国网新疆电力有限公司电力科学研究院 | Filter element on-site off-line cleaning device |
| CN114849343A (en) * | 2022-04-29 | 2022-08-05 | 鞍山市方业科技生化厂 | Method for adding filter aid into filter system |
| CN114849343B (en) * | 2022-04-29 | 2023-10-03 | 鞍山市方业科技生化厂 | Method for adding filter aid to filtration system |
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