CN209583711U - Mutual backwashing ultrafiltration device - Google Patents
Mutual backwashing ultrafiltration device Download PDFInfo
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- CN209583711U CN209583711U CN201822221129.1U CN201822221129U CN209583711U CN 209583711 U CN209583711 U CN 209583711U CN 201822221129 U CN201822221129 U CN 201822221129U CN 209583711 U CN209583711 U CN 209583711U
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- ultrafiltration membrane
- membrane group
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Abstract
The utility model discloses a kind of mutual backwashing ultrafiltration devices, including an inlet valve, a pre-processing assembly, one first electric three passes ball valve, one second electric three passes ball valve, the first ultrafiltration membrane group, the second ultrafiltration membrane group, one first electrical ball valve, one second electrical ball valve, an outlet valve, a normally open solenoid valve, a programmable time control piece, a pressure difference control piece, a gutter.The utility model is cleaned using the first ultrafiltration membrane group and the mutual backwash mode of the second ultrafiltration membrane group, production water backwash the second ultrafiltration membrane group of first ultrafiltration membrane group, then production water backwash the first ultrafiltration membrane group of the second ultrafiltration membrane group, last tap water carries out square impact to the first ultrafiltration membrane group and the second ultrafiltration membrane group, pollutant is sent to gutter, to solve the defect of water tank backwash and tap water backwash, effectively extends the service life of hyperfiltration membrane assembly, land occupation is reduced, strengthen the system is integrated.
Description
Technical field
The utility model is specifically related to a kind of mutual backwashing ultrafiltration device.
Background technique
As water source is in short supply and the aggravation of water pollution phenomenon, the raising of water standard and processing cost and urbanite water consumption are anticipated safely
The raising of knowledge, drinking water safety are increasingly becoming the focal point of resident.Though tap water plant effluent water quality is largely safety
Reliably, but during pipeline and secondary water-supply it pollutes unavoidably, this requires terminal users to use advanced treating
Device, which carries out advanced treating to tap water, can just obtain high-quality water.In advanced treatment system, the hyperfiltration technique originally depth of water at present
Degree handles most important technological means, and following development trend.
As a kind of membrane separation technique, ultra-filtration water can satisfy the use water water quality demand of most resident for ultrafiltration.
Hyperfiltration technique turbidity removal rate is high, and delivery turbidity is able to maintain in 0.3NTU hereinafter, the removal rate to particulate matter is able to maintain
99.9% or more, effectively remove the colloid and particulate matter in water body.Can effectively remove algae, merchant ground flagellate, Cryptosporidium,
The microorganisms such as bacterium and virus.There are good removal effect, stable effluent quality to larger molecular organics simultaneously.
The most important thing in ultrafiltration membrane water purification system application process is the cleaning way and cleaning effect of membrane module.At present
The cleaning method that ultrafiltered product uses is mainly backwash and square impact, and there are mainly three types of the modes of lessening membrane fouling: 1. using and sets
It sets water tank storage ultrafiltration water and (such as GE Homespring UF211) Lai Fanxi is shunk by pump or water tank；2. directly using
Tap water carries out backwash；3. directlying adopt cross-flow filtration, delay the pollution rate of membrane module.There may be land occupations for first way
Area is big, water tank need often cleaning, and need to add a force (forcing) pump or water tank contraction backwash water is extruded.Second
Mode is easier, if tap water quality is poor, the pollutant when pollutant of institute's band can be blocked fenestra instead, while produce water
It can enter in high-quality water.The third mode can slow down membrane module pollution, but can generate a large amount of waste water, produce water efficiency not
Height, while flux reduces always, flux can not effectively restore.
CN205917105U discloses a kind of integrated purifying system, including pretreatment unit, ultrafiltration water purification unit, nanofiltration
Water purification unit, UV disinfection unit and sewage unit.And the system can be realized ultrafiltration module and backwash mutually, can reach simplification
The purpose of system and water conservation.But during mutual backwash, multiple valves need to be controlled, state of a control is more multiple
Miscellaneous, electrical design is also relatively complicated.
In summary, at present above-mentioned main backwash mode all have some disadvantages, therefore need to existing cleaning process into
Traveling one-step optimization makes it possible to carry out backwash by ultrafiltration water obtained and can not have to add water tank and backwashing pump, simultaneously
The control mode of system can be simplified again.
Utility model content
The purpose of this utility model is to provide a kind of mutual backwashing ultrafiltration devices.
The technical solution of the utility model is as follows:
Mutual backwashing ultrafiltration device, it is characterised in that: including an inlet valve, a pre-processing assembly, one first electric three passes
Ball valve, one second electric three passes ball valve, the first ultrafiltration membrane group, the second ultrafiltration membrane group, one first electrical ball valve, one second electric ball
Valve, an outlet valve, a normally open solenoid valve, a programmable time control piece, a pressure difference control piece, a gutter；
First ultrafiltration membrane group and the second ultrafiltration membrane group are parallel with one another；
Tap water passes sequentially through pre-processing assembly and the first electric three passes ball valve is connected to the water inlet end of the first ultrafiltration membrane group, and
Pass sequentially through the water inlet end that pre-processing assembly and the second electric three passes ball valve are connected to the second ultrafiltration membrane group, the first ultrafiltration membrane group and the
The production water end (W.E.) of two ultrafiltration membrane groups passes sequentially through the first electrical ball valve connection outlet valve to provide production water；
The water inlet end of first ultrafiltration membrane group and the second ultrafiltration membrane group passes through the first electric three passes ball valve and second electronic respectively
Three-way ball valve communicated drainage ditch, the first ultrafiltration membrane group pass through the second electrical ball valve with the concentrated water end of the second ultrafiltration membrane group and are connected to row
Ditch；
The water outlet of inlet valve is directly connected to the water inlet end of outlet valve by normally open solenoid valve；
The water outlet of one end connection pre-processing assembly of pressure difference control piece, the other end are connected to the water inlet of the first electrical ball valve
End；
Programmable time control piece respectively with the first electric three passes ball valve, the second electric three passes ball valve, the first electrical ball valve,
Second electrical ball valve, normally open solenoid valve and the electrical connection of pressure difference control piece.
In a preferred embodiment of the utility model, the pre-processing assembly includes the Y type mistake being sequentially connected
Filter and a pressure reducing valve.
In a preferred embodiment of the utility model, one end of the pressure difference control piece and the first electric three passes ball
A first pressure gauge is equipped between valve and the second electric three passes ball valve.
In a preferred embodiment of the utility model, the other end of the pressure difference control piece and the first ultrafiltration membrane group
And second ultrafiltration membrane group production water end (W.E.) between be equipped with a second pressure gauge.
In a preferred embodiment of the utility model, it is unidirectional that the water outlet of first electrical ball valve is equipped with one
Valve.
It is further preferred that the water outlet of the check valve is equipped with flow meters.
In a preferred embodiment of the utility model, the inlet valve and the outlet valve are butterfly valve.
The beneficial effects of the utility model are:
1, the utility model is cleaned using the first ultrafiltration membrane group and the mutual backwash mode of the second ultrafiltration membrane group, the first is surpassed
Production water backwash the second ultrafiltration membrane group of filter membrane group, then production water backwash the first ultrafiltration membrane group of the second ultrafiltration membrane group, originally finally
Water carries out square impact to the first ultrafiltration membrane group and the second ultrafiltration membrane group, pollutant is sent to gutter, so that it is anti-to solve water tank
The defect with tap water backwash is washed, the service life of hyperfiltration membrane assembly is effectively extended, reduces land occupation, strengthen the system is integrated.
2, the utility model uses electric three passes ball valve, reduces valve quantity, while making using programmable time control piece
For the core of electric control system, simple Chinese programming can be directly carried out in equipment, is just able to achieve under each workflow states
The easy control of valve.
3, a normally open solenoid valve is arranged as tap water converting system in inlet valve and outlet valve in the utility model, this is originally
Water lines membrane module clean when or equipment downtime have a power failure when, the normally open solenoid valve make tap water will automatically by the pipeline into
Row water service.
4, the utility model is arranged a pressure difference in the water outlet of pre-processing assembly and the water inlet end of the first electrical ball valve and controls
Part, setting is followed successively by the fouling membrane alarm system of core, and when fouling membrane is serious, differential pressure controller movement, simultaneity factor closes phase
It answers valve, protects hyperfiltration membrane assembly, while can start that pressure cleaning backwashes ultrafiltration membrane each other and square impact cleans.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment 1.
Specific embodiment
The technical solution of the utility model is further detailed below by way of specific embodiment combination attached drawing and
Description.
Embodiment 1
A kind of mutual backwashing ultrafiltration device, including an inlet valve 1, a pre-processing assembly 2, one first electric three passes ball valve
31, one second electric three passes ball valve 32, the first ultrafiltration membrane group 41, the second ultrafiltration membrane group 42, one first electrical ball valve 51, one second
Electrical ball valve 52, an outlet valve 6, a normally open solenoid valve 7, a programmable time control piece 8 (can directly carry out simple Chinese volume
Journey), a pressure difference control piece 9, a gutter 0；
First ultrafiltration membrane group 41 and the second ultrafiltration membrane group 42 are parallel with one another；
Tap water passes sequentially through the water inlet that pre-processing assembly 2 is connected to the first ultrafiltration membrane group 41 with the first electric three passes ball valve 31
End, and the water inlet end that pre-processing assembly 2 is connected to the second ultrafiltration membrane group 42 with the second electric three passes ball valve 32 is passed sequentially through, the first surpass
Filter membrane group 41 passes sequentially through the first electrical ball valve 51 with the production water end (W.E.) of the second ultrafiltration membrane group 42 and is connected to outlet valve 6 to provide production water；
The water inlet end of first ultrafiltration membrane group 41 and the second ultrafiltration membrane group 42 passes through the first electric three passes ball valve 31 and respectively
The concentrated water end of two electric three passes ball valves, 32 communicated drainage ditch 0, the first ultrafiltration membrane group 41 and the second ultrafiltration membrane group 42 passes through second
52 communicated drainage ditch 0 of electrical ball valve；
The water outlet of inlet valve 1 is directly connected to the water inlet end of outlet valve 6 by normally open solenoid valve 7, so that when the first ultrafiltration
In cleaning or when equipment downtime has a power failure, inlet valve 1 and outlet valve 6 pass through the normally opened electricity for film group 41 and the second ultrafiltration membrane group 42
The supply of the realization tap water of magnet valve 7；
The water outlet of one end connection pre-processing assembly 2 of pressure difference control piece 9, the other end are connected to the water inlet of the first electrical ball valve
End；
Programmable time control piece 8 is electronic with the first electric three passes ball valve 31, the second electric three passes ball valve 32, first respectively
Ball valve 51, the second electrical ball valve 52, normally open solenoid valve 7 and pressure difference control piece 9 are electrically connected, so that: when being in backwash state, the
Production water the second ultrafiltration membrane of backwash group 42 of one ultrafiltration membrane group 41, then production water backwash the first ultrafiltration membrane group of the second ultrafiltration membrane group 42
41, last tap water carries out square impact to the first ultrafiltration membrane group 41 and the second ultrafiltration membrane group 42, and pollutant is sent to gutter 0, from
And solve the defect of water tank backwash and tap water backwash, effectively extend the service life of hyperfiltration membrane assembly, reduce land occupation, adds
Strong system is integrated；When the first ultrafiltration membrane group 41 and/or seriously polluted the second ultrafiltration membrane group 42, passes through pressure difference control piece 9 and close
Close the first electric three passes ball valve 31, the second electric three passes ball valve 32, the first electrical ball valve 51 and the second electrical ball valve 52, protection the
One ultrafiltration membrane group 41 and the second ultrafiltration membrane group 42 are connected to inlet valve 1 directly by normally open solenoid valve 7 with outlet valve 6, while can
Starting pressure cleaning is backwashed each other to ultrafiltration membrane and square impact cleaning.
Preferably, the pre-processing assembly 2 includes the y-type filter 21 and a pressure reducing valve 22, Neng Gouyou being sequentially connected
Effect protection ultrafiltration membrane, prevents the fluctuation of hydraulic pressure in biggish particle and pipe network in pipe network from damaging to ultrafiltration membrane.The pressure difference
A first pressure gauge 91 is equipped between one end of control piece 9 and the first electric three passes ball valve 31 and the second electric three passes ball valve 32.
One second is equipped between the other end of the pressure difference control piece 9 and the production water end (W.E.) of the first ultrafiltration membrane group 41 and the second ultrafiltration membrane group 42
Pressure gauge 92.The water outlet of first electrical ball valve 51 is equipped with a check valve 510.The water outlet of the check valve 510 is equipped with
Flow meters 511.The inlet valve 1 and the outlet valve 6 are butterfly valve.8 model of programmable time control piece
PLC08-3FF has a characteristic that 1, delays time to control；2, logic control；3, calendar timing；4, the succinct mode of connection；5,
Carry simple man-machine interface.
It is further preferred that the first ultrafiltration membrane group 41 of the utility model and the maximum intake pressure of the second ultrafiltration membrane group 42
Less than 6bar, maximum transmembrane pressure when operation is less than 2.1bar, it is contemplated that produces water turbidity and is less than 0.15NTU.It (is used when general operation
Pump carries out backwash), ultrafiltration membrane group intake pressure is in 1bar or so, and initial differential pressure is in 0.2-0.5bar, if on initial transmembrane pressure
1bar is risen, then the first ultrafiltration membrane group 41 and/or the second ultrafiltration membrane group 42 are seriously polluted, need to carry out chemical cleaning.First ultrafiltration
Fouling membrane gradually aggravates in the process of running for film group 41 and the second ultrafiltration membrane group 42, and transmembrane pressure is gradually increased, and increases to certain
Degree then enters warning stage, stops filtering immediately, opens tap water converting system (i.e. normally open solenoid valve 7), and when shutdown (presses
Stop botton directly powers off), ultrafiltration membrane stops filtering, opens tap water converting system, provides tap water.
The carrying out practically process of the utility model is as follows:
In the operation of the utility model normal circulation, wash phase and filtration stage can be divided into.Wash phase is generally
1.5-6min, filtration stage are generally 8-12h.Start the utility model, opens the first electric three passes ball valve 31, maintain a normally open electricity
Magnet valve 7 is opened, and the second electric three passes ball valve 32, the second electrical ball valve 52 and the first electrical ball valve 51 remain turned-off, into first
Ultrafiltration membrane group 41 rushes 42 stage of the second ultrafiltration membrane group, and yellow indicator lamp is bright, duration 0.5-2min；It is electronic to be then turned off first
Three-way ball valve 31 opens the second electric three passes ball valve 32, and normally open solenoid valve 7 keeps it turning on, and keeps the second electrical ball valve 52 and the
One electrical ball valve 51 is closed, and rushes 41 stage of the second ultrafiltration membrane group into the second ultrafiltration membrane group 42, yellow indicator lamp is bright, the duration
0.5-2min；The first electric three passes ball valve 31 and the second electrical ball valve 52 are then turned on, 32 He of the second electric three passes ball valve is kept
Normally open solenoid valve 7 is opened, and keeps the first electrical ball valve 51 to close, into the square impact stage, yellow indicator lamp is bright, duration 0.5-
2min.The second electrical ball valve 52 and normally open solenoid valve 7 are then closed, the first electric three passes ball valve 31 and the second electric three passes are kept
Ball valve 32 is opened, and opens the first electrical ball valve 51, into filtration stage, green indicator light is bright, duration 8-12h.
With the operation of the utility model, hyperfiltration membrane assembly pollution is increasingly severe, when transmembrane pressure is more than 1bar, is
System enter fouling membrane warning stage, red indicating light is bright, close the first electric three passes ball valve 31, the second electric three passes ball valve 32,
Second electrical ball valve 52 and the first electrical ball valve 51, opens solenoid valve normally open solenoid valve 7 provide tap water for user.
When there is fouling membrane warning stage, pressure push button need to be pressed, into pressure wash phase, yellow indicator lamp
It is bright, that is, the first ultrafiltration membrane group 41 punching 42 stage of the second ultrafiltration membrane group, the second ultrafiltration membrane group 42 punching 41 rank of the first ultrafiltration membrane group
Section and square impact stage carry out circulation flushing, and the continual rinsing time is generally 6-12min, scavenging period can be appropriately extended, if
Flux can not effectively be restored, then take out ultrafiltration membrane and carry out chemical cleaning.
When shutting down, indicator light does not work, and the utility model can close the first electric three passes ball valve 31, the second electric three passes ball
Valve 32, the second electrical ball valve 52 and the first electrical ball valve 51, opens solenoid valve normally open solenoid valve 7 provide tap water for user.Or
When system cut-off, the first electric three passes ball valve 31, the second electric three passes ball valve 32, the second electrical ball valve 52 and the first electrical ball valve
51 can keep original switch state, and when powering off normally open solenoid valve 7 then can in the state automatically opened, can continue to for
Family provide tap water, be unlikely to there are when system cut-off be in anhydrous available state.
The above, the only preferred embodiment of the utility model, therefore, it cannot be limited according to, and the utility model is implemented
Range, i.e., equivalent changes and modifications made according to the scope of the patent of the utility model and the content of the manual should still belong to practical
It is novel cover in the range of.
Claims (7)
1. mutual backwashing ultrafiltration device, it is characterised in that: including an inlet valve, a pre-processing assembly, one first electric three passes ball
Valve, one second electric three passes ball valve, the first ultrafiltration membrane group, the second ultrafiltration membrane group, one first electrical ball valve, one second electric ball
Valve, an outlet valve, a normally open solenoid valve, a programmable time control piece, a pressure difference control piece, a gutter；
First ultrafiltration membrane group and the second ultrafiltration membrane group are parallel with one another；
Tap water passes sequentially through pre-processing assembly and the first electric three passes ball valve is connected to the water inlet end of the first ultrafiltration membrane group, and successively
It is connected to the water inlet end of the second ultrafiltration membrane group by pre-processing assembly and the second electric three passes ball valve, the first ultrafiltration membrane group and the second surpasses
The production water end (W.E.) of filter membrane group passes sequentially through the first electrical ball valve connection outlet valve to provide production water；
The water inlet end of first ultrafiltration membrane group and the second ultrafiltration membrane group passes through the first electric three passes ball valve and the second electric three passes respectively
The concentrated water end of ball valve communicated drainage ditch, the first ultrafiltration membrane group and the second ultrafiltration membrane group passes through the second electrical ball valve communicated drainage
Ditch；
The water outlet of inlet valve is directly connected to the water inlet end of outlet valve by normally open solenoid valve；
The water outlet of one end connection pre-processing assembly of pressure difference control piece, the other end are connected to the water inlet end of the first electrical ball valve；
Programmable time control piece respectively with the first electric three passes ball valve, the second electric three passes ball valve, the first electrical ball valve, second
Electrical ball valve, normally open solenoid valve and the electrical connection of pressure difference control piece.
2. mutual backwashing ultrafiltration device as described in claim 1, it is characterised in that: the pre-processing assembly includes being sequentially connected
A y-type filter and a pressure reducing valve.
3. mutual backwashing ultrafiltration device as described in claim 1, it is characterised in that: one end and first of the pressure difference control piece
A first pressure gauge is equipped between electric three passes ball valve and the second electric three passes ball valve.
4. mutual backwashing ultrafiltration device as described in claim 1, it is characterised in that: the other end of the pressure difference control piece and the
A second pressure gauge is equipped between the production water end (W.E.) of one ultrafiltration membrane group and the second ultrafiltration membrane group.
5. mutual backwashing ultrafiltration device as described in claim 1, it is characterised in that: the water outlet of first electrical ball valve is set
There is a check valve.
6. mutual backwashing ultrafiltration device as claimed in claim 5, it is characterised in that: the water outlet of the check valve is equipped with one stream
Meter.
7. the mutual backwashing ultrafiltration device as described in any claim in claim 1 to 6, it is characterised in that: the water inlet
Valve and the outlet valve are butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822221129.1U CN209583711U (en) | 2018-12-27 | 2018-12-27 | Mutual backwashing ultrafiltration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822221129.1U CN209583711U (en) | 2018-12-27 | 2018-12-27 | Mutual backwashing ultrafiltration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209583711U true CN209583711U (en) | 2019-11-05 |
Family
ID=68379542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822221129.1U Active CN209583711U (en) | 2018-12-27 | 2018-12-27 | Mutual backwashing ultrafiltration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209583711U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607683A (en) * | 2018-12-27 | 2019-04-12 | 三达膜科技（厦门）有限公司 | A kind of mutual backwashing ultrafiltration device |
| CN111925032A (en) * | 2020-08-06 | 2020-11-13 | 广东蓝鸥净水设备制造有限公司 | Water tank-free mutual-flushing water purification equipment and ultrafiltration membrane mutual-flushing control method |
-
2018
- 2018-12-27 CN CN201822221129.1U patent/CN209583711U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607683A (en) * | 2018-12-27 | 2019-04-12 | 三达膜科技（厦门）有限公司 | A kind of mutual backwashing ultrafiltration device |
| CN109607683B (en) * | 2018-12-27 | 2024-02-06 | 三达膜科技（厦门）有限公司 | Mutual backwashing ultrafiltration device |
| CN111925032A (en) * | 2020-08-06 | 2020-11-13 | 广东蓝鸥净水设备制造有限公司 | Water tank-free mutual-flushing water purification equipment and ultrafiltration membrane mutual-flushing control method |
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