CN206463799U - A kind of submerged membrane cell system - Google Patents
A kind of submerged membrane cell system Download PDFInfo
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- CN206463799U CN206463799U CN201621189383.2U CN201621189383U CN206463799U CN 206463799 U CN206463799 U CN 206463799U CN 201621189383 U CN201621189383 U CN 201621189383U CN 206463799 U CN206463799 U CN 206463799U
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Abstract
The utility model provides a kind of submerged membrane cell system, and it includes membrane cisterna, water inlet system, the membrane module being arranged on inside membrane cisterna, the blow-off pipe being connected respectively with membrane module and the outlet pipe of water production system connection, the backwashing pump being connected with outlet pipe, with membrane cisterna, is arranged on the dirt discharge groove on membrane cisterna top, is arranged on membrane cisterna top and the surface sweep washing mechanism relative with the dirt discharge groove；Dirt discharge groove is connected with blow-off pipe；Water inlet system includes the water inlet pipe being connected respectively with water source and membrane cisterna bottom, the water inlet pipe being connected respectively with water inlet pipe and surface sweep washing mechanism, the inlet regulating valve being arranged on water inlet pipe, and inlet regulating valve is located between the water inlet pipe and membrane cisterna.By setting the surface sweep washing mechanism and the water inlet pipe being attached thereto being added on water inlet pipe, make full use of into water energy, the backwash liquor of membrane cisterna sweep washing in backwash, backwash liquor upper strata polluter is effectively washed away, avoid being detained in membrane cisterna during disposal of pollutants, make membrane cisterna backwash thorough.
Description
Technical field
The utility model is related to water treatment system, more particularly, to a kind of submerged membrane cell system.
Background technology
It is on the rise and supplies in water environment pollution, draining water standard is increasingly under strict dual-pressure, at traditional water
Reason technology and technique are difficult to ensure effluent quality.Film process can efficiently retain pollutant in water, and effluent quality is greatly improved,
Therefore membrane technology is widely used in water treatment procedure.
In film process, the immersion membrane filtration system arranged using hollow fiber film assembly is because loading density is big, energy
Enough save is taken up an area, and reduces investment, and is not easily blocked relative to pressure type membrane filtering system, and energy consumption is low.So in the overwhelming majority
Immersion filtration system is used on membrane filtration.
Although immersion membrane filtration system haves many advantages, such as, also there are many problems in practical engineering application.By
Lack the scouring of longitudinal direction in immersion membrane filtration system filter process, the polluter being rejected by easily deposits shape on film surface
Into cake layer, pollution is produced to film, water-yielding capacity is reduced.Although daily maintainability air water backwash process can be clear to a certain degree
Clean film surface, recovered part water-yielding capacity, but as backwash process is carried out, liquid level, which rises, drives polluter to float, with backwash
Terminate to start to discharge the easy secondary deposition of polluter in water on membrane module, reduce backwash effect.And due to the dress of film
Filling density is big, and polluter is not easily cleaned, and thus easily make it that Membrane cleaning is not thorough, causes frequent backwash.
Utility model content
The purpose of this utility model is to provide a kind of submerged membrane cell system, and the submerged membrane cell system can be effective
Fast existing immersed type membrane pond filtering pollution, membrane cisterna surface pollution of circulation thing and Membrane cleaning polluter is solved to exclude and lead not to the utmost
Cause membrane cisterna water quality deterioration, the problem of film backwash is frequent.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of submerged membrane cell system, including membrane cisterna, water inlet system, be arranged on inside membrane cisterna membrane module, respectively with film
Component and water production system connection outlet pipe, be connected with outlet pipe backwashing pump, be connected with membrane cisterna blow-off pipe, be arranged on membrane cisterna
The dirt discharge groove on top, it is arranged on membrane cisterna top and the surface sweep washing mechanism relative with the dirt discharge groove；The dirt discharge groove with it is described
Blow-off pipe is connected；
Water inlet pipe that the water inlet system includes being connected with water source and membrane cisterna bottom respectively, sweep respectively with water inlet pipe and surface
The water inlet pipe of washing machine structure connection, the inlet regulating valve being arranged on water inlet pipe, the inlet regulating valve are located at the water inlet branch
Between pipe and membrane cisterna.
Membrane module after filtering after a while, and the accumulation of surface contamination material causes film water-yielding capacity to decline, and produces water resistance
Power increase to a certain extent when, in order to recover water-yielding capacity, it is necessary to when being cleaned to membrane module, start the backwashing pump, production
The water after filter of water tank is pressurizeed via backwashing pump enters the film silk inside of membrane module, and at the same time backwash from inside to outside, progressively turns down
Inlet regulating valve so that water source treat drainage from the water inlet pipe enter surface sweep washing mechanism, water from surface sweep washing mechanism spray
Go out, lateral sweep is carried out to membrane cisterna backwash water and is washed, all pushes the polluter of backwash to the dirt discharge groove, is discharged through dirt discharge groove.
The keying degree of inlet regulating valve regards actual head loss and the intensity of required surface sweep washing of the water inlet pipe and water inlet pipe
And determine.
The water inlet pipe being attached thereto is added by the surface sweep washing mechanism and on water inlet pipe, made full use of into water energy
Amount, sweep washing, effectively washes away backwash liquor upper strata polluter, it is to avoid disposal of pollutants process in backwash to the backwash liquor of membrane cisterna
In middle delay membrane cisterna, make membrane cisterna backwash thorough.
The water production system includes water producing tank, be connected respectively with water producing tank and outlet pipe production water valve, for will be through film group
Water after part filtering is drawn into the suction pump of water producing tank.
Further, the level height of the dirt discharge groove is higher than the level height of the outlet pipe.The dirt discharge groove can be adopted
With forms such as triangular-notch weir, rectangular weirs.
Further, the surface sweep washing mechanism and the difference in height of the dirt discharge groove are no more than 0.5m.
Further, filter plate is provided with the membrane cisterna, membrane cisterna is divided into the membrane cisterna main body being sequentially connected up and down by the filter plate
With bottom cloth tank；The water inlet pipe is connected with the bottom cloth tank；The filter plate is provided with to be connected with the bottom cloth tank
Logical filter, one end of the membrane module is relative with the filter, and the other end of the membrane module is connected with the outlet pipe；Institute
Blow-off pipe is stated to be connected with the membrane cisterna main body.Treat that drainage enters the bottom cloth tank, by filter uniform water distribution to membrane module,
And then enter membrane cisterna main body.Filter has the function into water and air inlet concurrently.
Further, the submerged membrane cell system also includes the gas flushing mechanism for being used to backwash membrane module.
Further, the gas flushing mechanism includes the gas washing pipe, aeration valve, aeration wind being connected with bottom cloth tank
Machine, vent valve, the aeration valve are connected with the gas washing pipe and Aeration fan respectively, and the vent valve connects with the gas washing pipe
Connect.The aeration extension set can be substituted by the air compressor machine with identical function, air pump etc..
When gas flushing membrane module, start Aeration fan, open aeration valve, gas is introduced into bottom cloth tank, then passes through
Filter enters in membrane module, and carrying out disturbance to film washes away.After air purge terminates, aeration valve and Aeration fan are closed, vent valve is opened
Empty the air in the cloth tank of bottom.
Further, the submerged membrane cell system also includes being used for the cross-flow flushing that cross-flow flushing is carried out to membrane module
Pump, the cross-flow flushing pump is connected with the bottom cloth tank.
When needing cross-flow to rinse, start cross-flow flushing pump, water is drawn into bottom cloth tank by cross-flow flushing pump, to film
Component carries out cross-flow flushing, and identical when working condition of surface sweep washing is with water backwash during this.Cross-flow is rinsed can be thorough
The polluter being trapped in after conventional air water cleaning in putamina is excluded, cleaning efficiency, reduction backwash frequency is improved.
Further, one end of the cross-flow flushing pump is connected with the bottom cloth tank, the cross-flow flushing pump it is another
One end is connected with the water producing tank/water inlet pipe.Water source when cross-flow is rinsed can be the water after filter of water producing tank or to be filtered
Water, to save cost.
Further, the membrane module is externally provided with protection putamina, and the middle part and/or top of the protection putamina were provided with water
Air passing hole.The protection putamina water conservancy diversion intake outside through membrane module is flowed up, and membrane module is flowed out by the water air passing hole of crossing.Therefore exist
Under the drive of water inlet, protection putamina is inside and outside to form circulation, and enhancing is washed away to film surface.
Further, the surface sweep washing mechanism is perforated pipe, distributed flushing machine or the duct being arranged on membrane cisterna.
Further, the filter is strainer head.The strainer head is preferred to use gap quantity more and gap is small
Structure.
Compared with prior art, the beneficial effects of the utility model are：
The utility model by setting the surface sweep washing mechanism and the water inlet pipe being attached thereto being added on water inlet pipe,
Make full use of into water energy, the backwash liquor of membrane cisterna sweep washing in backwash, backwash liquor upper strata polluter is effectively washed away, keeps away
Exempt to be detained in membrane cisterna during disposal of pollutants, make membrane cisterna backwash thorough.
Brief description of the drawings
Fig. 1 is the side schematic view of submerged membrane cell system described in embodiment 1.
Fig. 2 is the schematic top plan view of membrane cisterna submerged membrane cell system described in embodiment 1.
Fig. 3 is membrane module described in embodiment 1 and the schematic diagram for protecting putamina.
Embodiment
With reference to embodiment, the present invention is further illustrated.Wherein, being given for example only property of accompanying drawing illustrates,
What is represented is only schematic diagram, rather than pictorial diagram, it is impossible to be interpreted as the limitation to this patent；In order to which the reality of the present invention is better described
Example is applied, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the size of actual object；To those skilled in the art
For, some known features and its explanation may be omitted and will be understood by accompanying drawing.
Embodiment 1
As shown in Fig. 1 ~ 3, a kind of submerged membrane cell system, including membrane cisterna, water inlet system, the film group that is arranged on inside membrane cisterna
Part 8, the outlet pipe 10 being connected respectively with membrane module 8 and water producing tank, the backwashing pump 11 being connected with outlet pipe 10, it is connected with membrane cisterna
Blow-off pipe 13, the dirt discharge groove 9 for being arranged on membrane cisterna top, it is arranged on membrane cisterna top and the surface sweep washing mechanism relative with dirt discharge groove 9
3rd, for membrane module 8 is backwashed gas flushing mechanism, for membrane module 8 carry out cross-flow flushing cross-flow flushing pump
20。
Filter plate 7 is provided with membrane cisterna, membrane cisterna is divided into the membrane cisterna main body 4 being sequentially connected up and down and bottom cloth tank 5 by filter plate 7.
Water inlet pipe 1 is connected with bottom cloth tank 5.Filter plate 7 is provided with filter 6, and one end of membrane module 8 is relative with filter 6, membrane module 8
The other end is connected with outlet pipe 10.Filter 6 is strainer head, and strainer head 6 is preferred to use more than gap quantity and the small knot in gap
Structure.Membrane module 8 is externally provided with protection putamina 19, protects the middle part and top of putamina 19 to be provided with water air passing hole 21.
Water inlet system include be connected respectively with water source and membrane cisterna bottom water inlet pipe 1, respectively with water inlet pipe 1 and surface sweep washing
The water inlet pipe of the connection of mechanism 3, the inlet regulating valve being arranged on water inlet pipe 1, inlet regulating valve are located at water inlet pipe and membrane cisterna
Between.
Blow-off pipe 13 is connected with the bottom of membrane cisterna main body 4, and blow-off pipe 13 is provided with the first blowoff valve 18.Dirt discharge groove 9 and row
Dirty pipe 13 is connected, and is provided with the second blowoff valve 12 in the junction of dirt discharge groove 9 and blow-off pipe 13.The level height of dirt discharge groove 9
Higher than the level height of outlet pipe 10.Dirt discharge groove 9 can be using forms such as triangular-notch weir, rectangular weirs.
Surface sweep washing mechanism 3 is perforated pipe, distributed flushing machine or the duct being arranged on membrane cisterna.Surface sweep washing mechanism
3 are no more than 0.5m with the difference in height of dirt discharge groove 9.
Gas flushing mechanism includes gas washing pipe 14, aeration valve 16, Aeration fan 17, the vent valve being connected with bottom cloth tank 5
15, aeration valve 16 is connected with gas washing pipe 14 and Aeration fan 17 respectively, and vent valve 15 is connected with gas washing pipe 14.Being aerated extension set can be by
Air compressor machine, air pump with identical function etc. are substituted.
One end of cross-flow flushing pump 20 is connected with bottom cloth tank 5.The other end of cross-flow flushing pump 20 and water producing tank/water inlet
Pipe 1 is connected.Water source when cross-flow is rinsed can be the water after filter of water producing tank or treat drainage, to save cost.
Water production system includes water producing tank, be connected respectively with water producing tank and outlet pipe 10 production water valve, for will be through membrane module 8
Water after filtering is drawn into the suction pump of water producing tank.Wherein, water producing tank, production water valve and suction pump are not shown.
The course of work
Illustrate the course of work of the present embodiment with reference to Fig. 1 ~ 3, mainly include membrane filtration processes and membrane cleaning process, specifically such as
Under.
Membrane filtration processes：During filtering, the standard-sized sheet of inlet regulating valve 2 treats that drainage enters membrane cisterna bottom cloth tank by water inlet pipe 1
5, then pass through the uniform water distribution of strainer head 6 to membrane module 8.Treat that protection putamina 19 water conservancy diversion of the drainage through membrane module 8 is flowed up,
Membrane module 8 is flowed out by the water air passing hole 21 of crossing positioned at middle and upper part.Under the drive of water inlet, protection putamina 19 is inside and outside to form circulation,
Enhancing is washed away to film surface.After the liquid level of membrane cisterna main body 4 floods membrane module 8, start what is be connected in water producing tank with outlet pipe 10
Suction pump, processing water enters water producing tank via outlet pipe 10.
Membrane cleaning process：Film after filtering after a while, and the accumulation of surface contamination material causes film water-yielding capacity to decline,
, it is necessary to be cleaned to film when producing water resistance increase to a certain extent, recover water-yielding capacity.In the present embodiment, Membrane cleaning bag
Containing three kinds of modes：Water backwash, gas backwash and cross-flow are rinsed, and three kinds of modes can combine progress.
When carrying out Membrane cleaning, production water valve is closed, inlet regulating valve 2 is progressively turned down so that treat that drainage enters surface sweep washing machine
Structure 3, the degree that inlet regulating valve 2 is opened and closed regards actual head loss and required surface sweep washing intensity of the water inlet pipe with water inlet pipe 1
And determine.
Specific backwash process is as follows：
First, water backwash process：Start backwashing pump 11, the water after filter of water producing tank enters membrane module 8 via the pressurization of backwashing pump 11
Film silk it is internal, backwash from inside to outside；Backwash water is drained from the dirt discharge groove 9 on membrane cisterna top, meanwhile, the surface that membrane cisterna top is set
Sweep sweep lateral to the progress of membrane cisterna backwash water of the system of washing to wash, all push the polluter of backwash to dirt discharge groove 9 and discharge.
2nd, gas backwash process：Start Aeration fan 17, open aeration valve 16, gas enters bottom cloth via gas washing pipe 14
Tank 5, is entered in membrane module 8 by the air inlet of strainer head 6, and carrying out disturbance to the film silk in membrane module 8 washes away.Gas flushing
After end, aeration valve 16 and Aeration fan 17 are closed, the air in the emptying bottom cloth tank 5 of vent valve 15 is opened.
3rd, cross-flow flushing process：Start treating in cross-flow flushing pump 20, the directly suction water inlet pipe 1 of cross-flow flushing pump 20
Drainage enters bottom cloth tank 5, and cross-flow flushing is carried out to membrane module 8.In this flushing process the working condition of surface sweep washing with
Water backwash process is identical.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give all embodiments
It is exhaustive.All any modifications, equivalent substitutions and improvements made within spirit of the present utility model and principle etc., should be included in
Within the utility model scope of the claims.
Claims (10)
1. a kind of submerged membrane cell system, it is characterised in that including membrane cisterna, water inlet system, the membrane module being arranged on inside membrane cisterna
（8）, respectively with membrane module（8）The outlet pipe connected with water production system（10）With outlet pipe（10）The backwashing pump of connection（11）And
The blow-off pipe of membrane cisterna connection（13）, be arranged on the dirt discharge groove on membrane cisterna top（9）, be arranged on membrane cisterna top and with the dirt discharge groove
（9）Relative surface sweep washing mechanism（3）；The dirt discharge groove（9）With the blow-off pipe（13）Connection；
The water inlet system includes the water inlet pipe being connected respectively with water source and membrane cisterna bottom（1）, respectively with water inlet pipe（1）And surface
Sweep washing machine structure（3）The water inlet pipe of connection, it is arranged on water inlet pipe（1）On inlet regulating valve（2）, the inlet regulating valve（2）
Between the water inlet pipe and membrane cisterna.
2. submerged membrane cell system according to claim 1, it is characterised in that the dirt discharge groove（9）Level height it is high
In the outlet pipe（10）Level height.
3. submerged membrane cell system according to claim 1, it is characterised in that filter plate is provided with the membrane cisterna（7）, it is described
Filter plate（7）Membrane cisterna is divided into the membrane cisterna main body being sequentially connected up and down（4）With bottom cloth tank（5）；The water inlet pipe（1）With it is described
Bottom cloth tank（5）Connection；
The filter plate（7）It is provided with and the bottom cloth tank（5）The filter of connection（6）, the membrane module（8）One end and institute
State filter（6）Relatively, the membrane module（8）The other end and the outlet pipe（10）Connection；The blow-off pipe（13）With it is described
Membrane cisterna main body（4）Connection.
4. submerged membrane cell system according to claim 3, it is characterised in that also including for membrane module（8）Carry out
The gas flushing mechanism of backwash.
5. submerged membrane cell system according to claim 4, it is characterised in that the gas flushing mechanism includes and bottom cloth
Tank（5）The gas washing pipe of connection（14）, aeration valve（16）, Aeration fan（17）, vent valve（15）, the aeration valve（16）Respectively
With the gas washing pipe（14）And Aeration fan（17）Connection, the vent valve（15）With the gas washing pipe（14）Connection.
6. submerged membrane cell system according to claim 3, it is characterised in that also including for membrane module（8）Carry out
The cross-flow flushing pump that cross-flow is rinsed（20）, the cross-flow flushing pump（20）With the bottom cloth tank（5）Connection.
7. submerged membrane cell system according to claim 6, it is characterised in that the cross-flow flushing pump（20）One end with
The bottom cloth tank（5）Connection, the cross-flow flushing pump（20）The other end and the water producing tank/water inlet pipe（1）Connection.
8. submerged membrane cell system according to claim 1, it is characterised in that the membrane module（8）It is externally provided with diaphragm
Shell（19）, the protection putamina（19）Middle part and/or top be provided with water air passing hole（21）.
9. submerged membrane cell system according to claim 1, it is characterised in that the surface sweep washing mechanism（3）For perforation
Pipe, distributed flushing machine or the duct being arranged on membrane cisterna.
10. submerged membrane cell system according to claim 3, it is characterised in that the filter（6）For strainer head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621189383.2U CN206463799U (en) | 2016-10-31 | 2016-10-31 | A kind of submerged membrane cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621189383.2U CN206463799U (en) | 2016-10-31 | 2016-10-31 | A kind of submerged membrane cell system |
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| Publication Number | Publication Date |
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| CN206463799U true CN206463799U (en) | 2017-09-05 |
Family
ID=59710604
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621189383.2U Active CN206463799U (en) | 2016-10-31 | 2016-10-31 | A kind of submerged membrane cell system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106474930A (en) * | 2016-10-31 | 2017-03-08 | 广东粤港供水有限公司 | One kind is dispersed into water submerged membrane cell system |
| CN109574384A (en) * | 2018-12-07 | 2019-04-05 | 智造起源科技有限公司 | A kind of membrane module cabinet of the structure of pre-filtering containing dielectrophoresis |
| CN111871213A (en) * | 2020-08-21 | 2020-11-03 | 常州科德水处理成套设备有限公司 | Self-cleaning intelligent ultrafiltration membrane pool device |
| CN114272759A (en) * | 2021-11-25 | 2022-04-05 | 上海市政工程设计研究总院（集团）有限公司 | Upper drainage immersed membrane device and flushing control method thereof |
-
2016
- 2016-10-31 CN CN201621189383.2U patent/CN206463799U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106474930A (en) * | 2016-10-31 | 2017-03-08 | 广东粤港供水有限公司 | One kind is dispersed into water submerged membrane cell system |
| CN109574384A (en) * | 2018-12-07 | 2019-04-05 | 智造起源科技有限公司 | A kind of membrane module cabinet of the structure of pre-filtering containing dielectrophoresis |
| CN111871213A (en) * | 2020-08-21 | 2020-11-03 | 常州科德水处理成套设备有限公司 | Self-cleaning intelligent ultrafiltration membrane pool device |
| CN114272759A (en) * | 2021-11-25 | 2022-04-05 | 上海市政工程设计研究总院（集团）有限公司 | Upper drainage immersed membrane device and flushing control method thereof |
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