CN107511076A - A kind of reverse osmosis membrane rinse-system, water purifier and its control method - Google Patents
A kind of reverse osmosis membrane rinse-system, water purifier and its control method Download PDFInfo
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- CN107511076A CN107511076A CN201710846564.0A CN201710846564A CN107511076A CN 107511076 A CN107511076 A CN 107511076A CN 201710846564 A CN201710846564 A CN 201710846564A CN 107511076 A CN107511076 A CN 107511076A
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- osmosis membrane
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- flusher
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- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- B01D2321/02—Forward flushing
-
- 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
-
- 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
- B01D2321/40—Automatic control of cleaning processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of reverse osmosis membrane rinse-system, water purifier and its control method.The reverse osmosis membrane rinse-system includes the water inlet being connected with water inlet pipe；For the water purification mouth of water purification outflow；And the concentrated water spout for concentrated water outflow；Flusher; connected with the water purification mouth; and certain pressure will be maintained in it; its interior flushing water is set through water purification mouth to enter reverse osmosis membrane filter element after being pressurized; so that flushing water infiltrates into concentrated water side, with replace concentrated water side concentrated water and by replacement concentrated water discharged from concentrated water spout, reduce the salt ionic concentration of concentrated water side; reverse osmosis membrane system is solved after a period of time is shut down, easily causes the problem of production water side TDS values are higher.
Description
Technical field
The invention belongs to technical field of water purification, and in particular to a kind of reverse osmosis membrane rinse-system, water purifier and its control
Method.
Background technology
Counter-infiltration is by being pressurizeed in concentrated water side, the hydrone in concentrated water side is entered production water side, production by reverse osmosis membrane
Raw pure water, at the same will be unable to penetrate reverse osmosis membrane various impurity and harmful substance with the discharge of wastewater of concentration.
Reverse osmosis technology is widely used to the fields such as Water warfare at present, wherein being water purification than a more typical field
Device.One leading developing direction of current water purifier is without bucket reverse osmosis membrane system, because this is anti-using big flux
Infiltration membranous system has that water outlet is fast, and no water butt, user can drink the characteristics of really filtering ready-to-drink pure water.
But because storing pure water without water butt, " the first glass of water " during opening tap water receiving is directly from reverse osmosis membrane every time
Production water side, the higher situation of TDS values thus occurs.The reason for causing the above situation is：In the case where stopping water condition processed,
The salt ion of concentrated water side osmotic pressure next part caused by concentration difference can penetrate into production water side, while the pure water for producing water side also can
Due to concentration difference, a part penetrates into concentrated water side, causes the salt ionic concentration for producing water side to improve.At present, prior art is usually
Tap is opened, is discharged water a period of time, then remove water receiving.Above-mentioned technology and unresolved above-mentioned technical problem, the problem is current row
Problem existing for industry and " pain spot ".
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome reverse osmosis membrane system of the prior art shutting down one section
After time, the defects of production water side TDS values are higher is easily caused.
Therefore, the present invention provides a kind of reverse osmosis membrane rinse-system, including：
Reverse osmosis membrane filter element, it includes：The water inlet being connected with water inlet pipe；For the water purification mouth of water purification outflow；And supply
The concentrated water spout of concentrated water outflow；
Flusher, connected with the water purification mouth, its interior flushing water can be pressurized after through the water purification mouth enter described in
Reverse osmosis membrane filter element so that the flushing water infiltrates into concentrated water side, with replace concentrated water side concentrated water and by replacement concentrated water from described
Concentrated water spout is discharged.
Further, including pure water pipe, described pure water pipe one end connect with the water purification mouth, are provided with the pure water pipe
The mouth of a river；
Flush pipe, one end are connected with the flusher, and the other end connects with the mouth of a river, and is set in the flush pipe
Two magnetic valves and the second high-voltage switch gear；
Concentrated water pipe, one end connect with the concentrated water spout, and are provided with the 3rd magnetic valve on the concentrated water pipe.
Further, including the first magnetic valve, it is arranged on the water inlet pipe.
Further, including the first water check valve, it is arranged on the water inlet pipe between first magnetic valve and the water inlet；
Second water check valve, it is arranged on the pure water pipe, and its relatively described mouth of a river is set away from the water purification mouth；
Supercharging device, it is arranged on the water inlet pipe between first magnetic valve and first water check valve.
In addition, the invention provides a kind of water purifier, including above-mentioned reverse osmosis membrane rinse-system.
Further, in addition to some prime cleaning modules, it is arranged on the water inlet pipe, with the water inlet pipe
Water carries out prime purification；
Some rear class cleaning modules, are arranged on the pure water pipe, to carry out rear class purification to the water of the pure water pipe.
Further, including pressure-reducing valve, it is set away from the prime cleaning module and close to the water inlet pipe water inlet end
On；
First high-voltage switch gear and flowmeter, set away from the rear class cleaning module and close to the pure water pipe water side
Thereon.
In addition, present invention also offers the control method of above-mentioned reverse osmosis membrane rinse-system, comprise the following steps：
Detect the discharge pressure and flow of the pure water pipe water side；
Judge whether the discharge pressure is less than the first preset pressure, and judge whether the water flow is 0；
If the discharge pressure is less than first preset pressure, and when the water flow is 0, opens second electricity
Magnet valve and second high-voltage switch gear, and the 3rd magnetic valve described in standard-sized sheet and closing first magnetic valve, are filled with described rinse
Reverse osmosis membrane filter element described in the flushing water back flush put.
Further, the second solenoid valve and second high-voltage switch gear, and the 3rd magnetic valve described in standard-sized sheet are being opened
Before closing first magnetic valve, in addition to the step of the first preset time of delay.
Further, first preset time was more than or equal to 1000 seconds and less than or equal to 1500 second.
Further, the time of reverse osmosis membrane filter element is more than or equal to described in the flushing water back flush in the flusher
50 seconds and less than or equal to 200 seconds.
Further, if including the discharge pressure be less than first preset pressure, when water flow not be 0 when, sentence
Break the flusher delivery port pressure whether in the second pre-set pressure range,
If the delivery port pressure of flusher not in the second pre-set pressure range, opens first magnetic valve and described
Second solenoid valve, and half-open 3rd magnetic valve, water or discharge water with water processed and into the flusher.
Further, if in addition to the discharge pressure be higher than first preset pressure, when the water flow be 0
When, then the delivery port pressure of the flusher is judged whether in the second pre-set pressure range,
The delivery port pressure of the flusher then closes first magnetic valve and institute in the second pre-set pressure range
Second solenoid valve is stated, to stop water processed.
Further, before water processed, in addition to the 3rd magnetic valve described in first magnetic valve and standard-sized sheet, closing are opened
The second solenoid valve and the pure water pipe water side, forward direction rinse the reverse osmosis membrane filter element.
Further, second preset pressure is 0.05MPa-0.3Mpa.
Further, the positive time for rinsing the reverse osmosis membrane filter element is more than or equal to 15 seconds and less than or equal to 30
Second.
It should be noted that the first preset pressure is usually to be configured according to actual conditions, such as different reverse osmosis membranes rush
Washing the unit type of system has corresponding setting, and this is known in those skilled in the art, then this is repeated no more.
Technical solution of the present invention, have the following advantages that：
1. reverse osmosis membrane rinse-system provided by the invention, water inlet, water purification mouth and dense are set on reverse osmosis membrane filter element
The mouth of a river, and the flusher connected with water purification mouth is set, and certain pressure will be maintained in it, its interior flushing water is pressurized
Enter reverse osmosis membrane filter element by water purification mouth so that flushing water infiltrates into concentrated water side, to replace concentrated water side concentrated water and will be replaced
Concentrated water is discharged from concentrated water spout, reduces the salt ionic concentration of concentrated water side, solves reverse osmosis membrane system after a period of time is shut down, easily
Cause to produce the problem of water side TDS values are higher.
2. reverse osmosis membrane rinse-system provided by the invention, in addition to it can solve the above problems, by being pressurizeed in production water side
To concentrated water side, and positive flushing is combined, make the dirt of film surface be more easy to rinse out, so as to delay fouling membrane, extend membrane lifetime；
And by setting some magnetic valves and water check valve, make reverse osmosis membrane rinse-system that there is automatic flushing function.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of reverse osmosis membrane rinse-system in the embodiment of the present invention；
Fig. 2 is the structural representation of water purifier in the embodiment of the present invention；
Fig. 3 is the flow chart of control method in the embodiment of the present invention；
Description of reference numerals：
1- reverse osmosis membrane filter elements；2- flushers；3- water inlets；4- water purification mouths；5- concentrated water spouts；6- pure water pipes；7- is rinsed
Pipe；The 8- mouths of a river；9- second solenoid valves；The high-voltage switch gears of 10- second；11- concentrated water pipes；The magnetic valves of 12- the 3rd；The water check valves of 13- first；
The water check valves of 14- second；The magnetic valves of 15- first；16- supercharging devices；The high-voltage switch gears of 17- first；18- flowmeters；19- primes purify
Module；19-1- first class purification modules；19-2- secondary purification modules；19-3- three-level cleaning modules；20- rear class cleaning modules；
21- pressure-reducing valves；22- low tension switches；23- gooseneck faucets.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It is be combined with each other into conflict can.
Embodiment 1
The present embodiment provides a kind of reverse osmosis membrane rinse-system, as shown in figure 1, including：
Reverse osmosis membrane filter element 1, it includes：The water inlet 3 being connected with water inlet pipe；For the water purification mouth 4 of water purification outflow；And
For the concentrated water spout 5 of concentrated water outflow；
Flusher 2, connected with the water purification mouth 4, its interior flushing water through the water purification mouth 4 enters institute after being pressurized
State reverse osmosis membrane filter element 1 so that the flushing water infiltrates into concentrated water side, with replace concentrated water side concentrated water and by replacement concentrated water from institute
Concentrated water spout 5 is stated to discharge.
In the present embodiment, flusher 2 is pressurized tank.
In above-mentioned reverse osmosis membrane rinse-system, water inlet 3, water purification mouth 4 and concentrated water spout 5 are set on reverse osmosis membrane filter element 1,
And the flusher 2 connected with water purification mouth 4 is set, and certain pressure will be maintained in it, after its interior flushing water is pressurized
Enter reverse osmosis membrane filter element 1 through water purification mouth 4 so that flushing water infiltrates into concentrated water side, to replace concentrated water side concentrated water and will be replaced
Concentrated water is discharged from concentrated water spout 5, reduces the salt ionic concentration of concentrated water side, solves reverse osmosis membrane system after a period of time is shut down,
Easily cause the problem of production water side TDS values are higher.
In the present embodiment, including：Pure water pipe 6, described one end of pure water pipe 6 connect with the water purification mouth 4, the pure water pipe
The mouth of a river 8 is provided with 6；
Flush pipe 7, one end connect with the flusher 2, and the other end connects with the mouth of a river 8, are set in the flush pipe 7
Put the high-voltage switch gear 10 of second solenoid valve 9 and second.
Concentrated water pipe 11, one end connect with the concentrated water spout 5, and are provided with the 3rd magnetic valve 12 on the concentrated water pipe 11；Tool
Body, the 3rd magnetic valve 12 is waste water ratio electromagnetic valve；
In the present embodiment, including the first magnetic valve 15, it is arranged on the water inlet pipe.
In the present embodiment, including：First water check valve 13, it is arranged between first magnetic valve 15 and the water inlet 3
Water inlet pipe on；
Second water check valve 14, it is arranged on the pure water pipe 6, and its relatively described mouth of a river 8 is set away from the water purification mouth 4
Put；
Supercharging device 16, it is arranged on the water inlet pipe between first magnetic valve 15 and first water check valve 13.
Specifically, the first water check valve 13 and the second water check valve 14 are non-return valve, and supercharging device 16 is booster pump.
Above-mentioned reverse osmosis membrane rinse-system, except that can solve reverse osmosis membrane system after a period of time is shut down, easily cause production
Outside the problem of water side TDS values are higher, by being pressurized to concentrated water side in production water side, and positive flushing combined, make the dirt of film surface more
Easily rinse out, so as to delay fouling membrane, extend membrane lifetime；And by setting some magnetic valves and water check valve, make counter-infiltration
Film rinse-system has automatic flushing function.
Embodiment 2
The present embodiment provides a kind of water purifier, as shown in Fig. 2 including the reverse osmosis membrane rinse-system in embodiment 1.Pass through
Using the reverse osmosis membrane rinse-system in embodiment 1, can solve water purifier after water processed is stopped for a period of time, produce water side TDS
It is worth the problem of higher.
In order to improve purifying water effect, in addition to some prime cleaning modules 19, it is arranged on the water inlet pipe, with to described
Water in water inlet pipe carries out prime purification；Some rear class cleaning modules 20, it is arranged on the pure water pipe 6, with to the water purification
The water of pipe 6 carries out rear class purification.
Further, including pressure-reducing valve 21, set away from the prime cleaning module 19 and close to the water inlet pipe water inlet end
Put thereon；
First high-voltage switch gear 17 and flowmeter 18, away from the rear class cleaning module 20 and close to the water outlet of pure water pipe 6
End is arranged on.In the present embodiment, flowmeter 18 is pulse flowmeter.
In the present embodiment, prime cleaning module 19 includes first class purification module 19-1, secondary purification module 19-2 and three
Level cleaning module 19-3, is set in turn on pure water pipe along water (flow) direction；More specifically, first class purification module 19-1 filters for PP cottons
Core, secondary purification module 19-2 are active carbon filter core and three-level cleaning module 19-3 is ultrafiltration membrane filter element.In another embodiment,
First class purification module 19-1 is ultra-filtration element, secondary purification module 19-2 is active carbon filter core and three-level cleaning module 19-3 is PP
Cotton filter core.
As shown in Fig. 2 low pressure is set to open on water inlet pipe between secondary purification module 19-2 and three-level cleaning module 19-3
The magnetic valve 15 of pass 22 and first；
Supercharging device 16 is set on the water inlet pipe between three-level cleaning module 19-3 and the first water check valve 13；
Rear class cleaning module 20 is set on the water inlet pipe between second water check valve 14 and the first high-voltage switch gear 17, specifically,
Rear class cleaning module 20 is active carbon filter core or composite filter element；
The water side of pure water pipe 6 sets gooseneck faucet 23.
The operation principle of above-mentioned water purifier is as follows：
Raw water through pressure-reducing valve 21 enter first class purification module 19-1 and secondary purification module 19-2, by low tension switch 22,
First magnetic valve 15, three-level cleaning module 19-3.Raw water through prime purified treatment passes through the first water check valve 13 by booster pump
Into reverse osmosis membrane filter element 1, the water by the deep level of processing of reverse osmosis membrane filter element 1 is separated into pure water and concentrated water.Wherein, pure water branch road
It is divided into two, passes through the first high-voltage switch gear 17 and flowmeter again by rear class cleaning module after the second water check valve 14 all the way
After 18 by gooseneck faucet 23 for users to use；Another pure water branch road enters by the high-voltage switch gear 10 of second solenoid valve 9 and second
Enter pressurized tank.Concentrated water branch road is discharged after waste water ratio electromagnetic valve.
Embodiment 3
The present embodiment provides a kind of control method of reverse osmosis membrane rinse-system in embodiment 1, as shown in figure 3, including such as
Lower step：
Detect the discharge pressure and flow of the water side of pure water pipe 6；
Judge whether the discharge pressure is less than the first preset pressure, and judge whether the water flow is 0；
If the discharge pressure is less than first preset pressure, and when the water flow is 0, opens second electricity
Magnet valve 9 and second high-voltage switch gear 10, and the 3rd magnetic valve 12 described in standard-sized sheet and close first magnetic valve 15, with described
Reverse osmosis membrane filter element 1 described in flushing water back flush in flusher 2.
By above-mentioned control method, discharge pressure and flow are detected in time, to reflect concentrated water side situation, open and close phase
Magnetic valve is answered, concentrated water side concentrated water is substituted for water purification, and replaced concentrated water is discharged from concentrated water spout, reduces the salt ion of concentrated water side
Concentration, solve reverse osmosis membrane system after a period of time is shut down, easily cause the problem of production water side TDS values are higher.Make film simultaneously
The dirt in face is more easy to rinse out, and so as to delay fouling membrane, extends membrane lifetime.
In the present embodiment, the second solenoid valve 9 and second high-voltage switch gear 10 are being opened, and the 3rd described in standard-sized sheet
Before magnetic valve 12 and closing first magnetic valve 15, in addition to the step of the first preset time of delay.Pass through delay first
Preset time can carry out back flush in the suitable time, first ensure developing result；Second washing time is reduced.
In the present embodiment, first preset time was more than or equal to 1000 seconds and less than or equal to 1500 second.
Further, the time of reverse osmosis membrane filter element described in the flushing water back flush in the flusher 2 be more than etc.
In 50 seconds and less than or equal to 200 seconds.
Further, including：
If the discharge pressure is less than first preset pressure, when water flow is not 0, the flusher is judged
2 delivery port pressure whether in the second pre-set pressure range,
If the delivery port pressure of flusher 2 not in the second pre-set pressure range, opens the He of the first magnetic valve 15
The second solenoid valve 9, and half-open 3rd magnetic valve 12, water or discharge water with water processed and into the flusher 2.It is logical
Above-mentioned control method is crossed, detects delivery port pressure condition in regimen condition processed and flusher 2, and water processed, and tieing up in time in time
The delivery port pressure of flusher 2 is held in the second pre-set pressure range, extends reverse osmosis membrane filter element, and it is anti-to have reached cleaning
The effect of permeable membrane.
Further, including：If the discharge pressure is higher than first preset pressure, when the water flow is 0,
The delivery port pressure of the flusher 2 is then judged whether in the second pre-set pressure range,
The delivery port pressure of the flusher 2 then closes first magnetic valve 15 in the second pre-set pressure range
With the second solenoid valve 9, to stop water processed.By above-mentioned control method, detect in time in regimen condition processed and flusher 2
Delivery port pressure condition, and water processed in time, and maintain the delivery port pressure of flusher 2 to prolong in the second pre-set pressure range
Reverse osmosis membrane filter element has been grown, and has haveed the function that to clean reverse osmosis membrane.
Further, before water processed, in addition to the 3rd magnetic valve 12 described in first magnetic valve 15 and standard-sized sheet is opened,
The second solenoid valve 9 and the water side of the pure water pipe 6 are closed, forward direction rinses the reverse osmosis membrane filter element 1.Pass through the setting pair
Counter-infiltration filter core has carried out positive flushing, ensure that the purifying water effect of reverse osmosis membrane.
Further, second preset pressure is 0.05MPa-0.3Mpa.
It should be noted that " the second preset pressure is that 0.05MPa-0.3Mpa " is directed to certain anti-back pressure ability
RO diaphragms；When forward direction is rinsed with back flush, the standard-sized sheet of the 3rd magnetic valve 12；When water processed and stopping water, the 3rd magnetic valve 12
It is half-open.
Further, the positive time for rinsing the reverse osmosis membrane filter element 1 is more than or equal to 15 seconds and less than or equal to 30
Second.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (14)
- A kind of 1. reverse osmosis membrane rinse-system, it is characterised in that including：Reverse osmosis membrane filter element (1), it includes：The water inlet (3) being connected with water inlet pipe；For the water purification mouth (4) of water purification outflow；With And the concentrated water spout (5) for concentrated water outflow；Flusher (2), connected with the water purification mouth (4), its interior flushing water enters after being pressurized through the water purification mouth (4) The reverse osmosis membrane filter element (1) so that the flushing water infiltrates into concentrated water side, with replace concentrated water side concentrated water and by replacement concentrated water Discharged from the concentrated water spout (5).
- 2. reverse osmosis membrane rinse-system according to claim 1, it is characterised in that including：Pure water pipe (6), described pure water pipe (6) one end are connected with the water purification mouth (4), and the mouth of a river is provided with the pure water pipe (6) (8)；Flush pipe (7), one end connect with the flusher (2), and the other end connects with the mouth of a river (8), the flush pipe (7) Upper setting second solenoid valve (9) and the second high-voltage switch gear (10)；Concentrated water pipe (11), one end connect with the concentrated water spout (5), and are provided with the 3rd magnetic valve on the concentrated water pipe (11) (12)。
- 3. reverse osmosis membrane rinse-system according to claim 2, it is characterised in that including：First magnetic valve (15), is arranged on the water inlet pipe.
- 4. a kind of water purifier, it is characterised in that including the reverse osmosis membrane rinse-system any one of claim 1-3.
- 5. water purifier according to claim 4, it is characterised in that also include,Some prime cleaning modules (19), are arranged on the water inlet pipe, to carry out prime purification to the water in the water inlet pipe；Some rear class cleaning modules (20), are arranged on the pure water pipe (6), to carry out rear class to the water of the pure water pipe (6) Purification.
- 6. a kind of control method of the reverse osmosis membrane rinse-system described in claim 3, comprises the following steps：Detect the discharge pressure and flow of the pure water pipe (6) water side；Judge whether the discharge pressure is less than the first preset pressure, and judge whether the water flow is 0；If the discharge pressure is less than first preset pressure, and when the water flow is 0, opens the second solenoid valve (9) and second high-voltage switch gear (10), and the 3rd magnetic valve (12) described in standard-sized sheet and first magnetic valve (15) is closed, used Reverse osmosis membrane filter element (1) described in flushing water back flush in the flusher (2).
- 7. control method according to claim 6, it is characterised in that opening the second solenoid valve (9) and described the Two high-voltage switch gears (10), and before the 3rd magnetic valve (12) described in standard-sized sheet and closing first magnetic valve (15), in addition to prolong The step of slow first preset time.
- 8. control method according to claim 7, it is characterised in that first preset time be more than or equal to 1000 seconds and Less than or equal to 1500 seconds.
- 9. control method according to claim 6, it is characterised in that the flushing water in the flusher (2) reversely rushes The time for washing the reverse osmosis membrane filter element was more than or equal to 50 seconds and less than or equal to 200 seconds.
- 10. according to the control method any one of claim 6-9, it is characterised in that including：If the discharge pressure is less than first preset pressure, when water flow is not 0, the flusher (2) is judged Delivery port pressure whether in the second pre-set pressure range,If the delivery port pressure of flusher (2) not in the second pre-set pressure range, open first magnetic valve (15) and The second solenoid valve (9), and half-open 3rd magnetic valve (12), with water processed and into the flusher (2) water or Discharge water.
- 11. according to the control method any one of claim 6-9, it is characterised in that also include：If the discharge pressure is higher than first preset pressure, when the water flow is 0, then the flusher is judged (2) delivery port pressure whether in the second pre-set pressure range,The delivery port pressure of the flusher (2) then closes first magnetic valve (15) in the second pre-set pressure range With the second solenoid valve (9), to stop water processed.
- 12. according to the control method any one of claim 6-9, it is characterised in that before water processed, in addition to open 3rd magnetic valve (12) described in first magnetic valve (15) and standard-sized sheet, closes the second solenoid valve (9) and the pure water pipe (6) water side, forward direction rinse the reverse osmosis membrane filter element (1).
- 13. control method according to claim 12, it is characterised in that second preset pressure is 0.05MPa- 0.3Mpa。
- 14. control method according to claim 12, it is characterised in that the positive flushing reverse osmosis membrane filter element (1) time was more than or equal to 15 seconds and less than or equal to 30 second.
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