CN104761076A - Reverse osmosis water purification machine-intelligent pure water forward/reverse-alternate flushing water-saving system and method - Google Patents
Reverse osmosis water purification machine-intelligent pure water forward/reverse-alternate flushing water-saving system and method Download PDFInfo
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Abstract
The invention discloses a reverse osmosis water purification machine-intelligent pure water forward/reverse-alternate flushing water-saving system and method. The reverse osmosis water purification machine-intelligent pure water forward/reverse-alternate flushing water-saving system comprises an intelligent water monitor, a water inlet solenoid valve, a first intelligent valve, a second intelligent valve, a third intelligent valve, a first check valve, a second check valve and an intelligent controller, wherein the first intelligent valve comprises a flushing valve and a wastewater ratio valve. The system is characterized in that a pressure barrel and a pure water outlet of a reverse osmosis membrane set form a reverse flush channel through a high-pressure switch and the second intelligent valve; and the pressure barrel, high-pressure switch, third intelligent valve, second check valve and a raw water inlet of the reverse osmosis membrane set form a forward flush channel. The forward flush and reverse flush are performed alternately. The system implements the purified water/concentrated water ratio of 1:1; and the pure water performs forward/reverse flush on the RO (reverse osmosis) membrane and dilutes and removes organic colloids, inorganic salts and the like on the surface layer of the RO membrane, thereby prolonging the service life of the RO membrane.
Description
Technical field
The invention belongs to water-treatment technology field, relate to water filtration and water treatment technology, specifically, relate to a kind of reverse osmosis water purifier and intelligent pure water positive and negative alternate flushing water-saving system and method.
Background technology
Reverse osmosis water purifier is the machine mainly utilizing principle of reverse osmosis to carry out water treatment.Reverse osmosis membrane technology applies certain pressure to water, the mineral element of water molecules and ionic state is made to pass through reverse osmosis membrane, and the most inorganic salt (comprising heavy metal) be dissolved in water, organism and bacterium, virus etc. through reverse osmosis membrane, thus cannot make the pure water penetrated and strict the separating of condensed water that cannot penetrate.It is comparatively reasonable that reverse osmosis water purifier generally arranges Pyatyi filtration: the first step is the cotton filter core of PP, and the second stage preposition particle charcoal filter core, the third stage is extruded activated carbon filter core, and the fourth stage is the RO reverse osmosis membrane filter core of core, and level V is post active carbon (little T33).
The emphasis of the routine maintenance of reverse osmosis water purifier mainly concentrates on the routine cleaning of reverse osmosis (RO) film, general employing carries out low-pressure washing under 60psi (4bar) or power condition at low pressure, namely in pressurized vessel, pump into cleaning water from (or suitable water source) purge tank then to emit, run several minutes.Starting scavenging pump pumps in membrane module by scavenging solution, wash cycles about a hour.At initial period, before scavenging solution is back to RO purge tank, initial phegma is emitted, in order to avoid the water be detained in system causes dilution to cleaning solution.In initial 5 minutes, at leisure by flow rate regulation to 1/3 of design maximum flow velocity, at second in 5 minutes, increase flow velocity to 2/3 of design maximum flow velocity, then, then increase the Peak Flow Rate value of flow velocity to design.If needed, when the change of pH is greater than 1, will again adjust back to former numerical value.As required, wash cycles and immersion program can alternately be adopted.Soak time generally selects 1 to 8 hour, will keep suitable temperature and pH modestly.After cleaning is write as, RO can restart to be placed in working procedure, but initial product water will carry out discharging and monitoring, until RO produces water can meet processing requirement.
As mentioned above, traditional reverse osmosis water purifier utilizes former water or waste water flushing, and rinsing like this is effectively to rinse the impurity such as organic colloid, inorganic salt being attached to RO film surface, and the life-span of film can shorten.Meanwhile, traditional reverse osmosis water purifier condensed water discharge capacity is large, and for 50G reverse osmosis water purifier, waste water ratio valve parameter is 420 ml/min, and pure water flow is 130 ml/min, and pure water flow and Concentrate flow are reached for the ratio of 1:3, suitable water wasting.
Meanwhile, reverse osmosis water purifier is along with the increase of pressure pot pressure in water process processed, and reverse osmosis membrane assembly back pressure increases, i.e. the back pressure problems that easily produces of pressure pot.
Reverse osmosis membrane is in former water water temperature lower than less than 10 DEG C, and water production rate obviously declines, thus causes water purification mechanism water overlong time, and even do not shut down, topping-up pump load increases, and affects film work-ing life.
If can design a kind of cleaning being conducive to reverse osmosis (RO) film, extend the life-span of RO film, meanwhile, realizing purifies waste water with the ratio of condensed water is the technical scheme of 1:1 micro-discharge even, will be conducive to solving the problem.
Summary of the invention
The object of the invention is to for prior art Problems existing, by adopting the positive and negative washing water-saving device of pure water intelligence, extend the life-span of RO film, can realize again purifying waste water with the ratio of condensed water is 1:1, micro-discharge even, thus a kind of reverse osmosis water purifier and intelligent pure water positive and negative alternate flushing water-saving system and method are provided.
In order to realize object of the present invention, the technical solution used in the present invention is:
A kind of intelligent pure water positive and negative alternate flushing water-saving system, it comprises smart water quality monitor, entering water electromagnetic valve, the first smart valve, the second smart valve, the 3rd smart valve, the first reverse checkvalve, the second reverse checkvalve and intelligent controller, first smart valve comprises flush valve and waste water ratio valve, and smart water quality monitor is arranged in the front end water inlet pipe of three grades of preprocessing filter element; Entering water electromagnetic valve is arranged on three grades between preprocessing filter element and topping-up pump; First smart valve is arranged on the condensed water exit of reverse osmosis membrane group;
The pure water outlet of reverse osmosis membrane group is divided into the two-way of connection,
The first via is communicated with pressure pot by the second smart valve and high-voltage switch gear; Pressure pot goes out interruption-forming back flushing passage by the pure water of high-voltage switch gear, the second smart valve and reverse osmosis membrane group;
Second tunnel is by after the first reverse checkvalve, and be divided into again three tunnels of connection, high-voltage switch gear of leading up to is communicated with pressure pot, the inlet communication of two tunnels and post active carbon, and three tunnels are communicated with the original water inlet of reverse osmosis membrane group by the 3rd smart valve, the second reverse checkvalve; The original water inlet of pressure pot, high-voltage switch gear, the 3rd smart valve, the second reverse checkvalve and reverse osmosis membrane group forms positive irrigation channel.
First reverse checkvalve is the check valve of pure water Way out, and the second reverse checkvalve is the check valve of pure water outlet toward the original water inlet direction of reverse osmosis membrane group of pressure pot and reverse osmosis membrane group.
Positive and negative alternate purging method is as follows:
(1) the positive flushing process of RO film pure water: when pure water stores full in pressure pot, controlled by intelligent controller, entering water electromagnetic valve is closed, the flush valve of the first smart valve is closed, second smart valve is closed, 3rd smart valve is opened, the waste water ratio valve of the first smart valve is opened, pure water in pressure pot enters the original water inlet of reverse osmosis membrane group under pressure through the 3rd smart valve and the second reverse checkvalve, pure water is utilized to have strong solvability, from front by reverse osmosis membrane surface impurity, mainly comprise iron, magnesium, calcium and lead ion, dissolve, dissolution time is 5-8 seconds, be preferably 5 seconds,
After dissolving completes, 3rd smart valve is closed, flush valve and the waste water ratio valve of the first smart valve are opened, entering water electromagnetic valve is opened, former water passes into the original water inlet end of reverse osmosis membrane group through topping-up pump, and discharged by the waste water ratio valve of the condensed water in reverse osmosis membrane group by the first smart valve, former washing time is 8-10 second, be preferably 8 seconds, so far complete the positive flushing process of a step RO film pure water;
(2) controlled to enter pure water backwash process by intelligent controller;
(3) RO film pure water backwash process: when system enters pure water backwash process, entering water electromagnetic valve is closed, the flush valve of the first smart valve is closed, 3rd smart valve is closed, second smart valve is opened, the waste water ratio valve of the first smart valve is opened, pure water in pressure pot enters the pure water exit end of reverse osmosis membrane group under pressure through the second smart valve, utilize pure water to have strong solvability, from the negative by reverse osmosis membrane surface impurity, mainly comprise iron, magnesium, calcium and lead ion, dissolve, dissolution time is 5-8 seconds, is preferably 5 seconds;
After dissolving completes, second smart valve is closed, flush valve and the waste water ratio valve of the first smart valve are opened, entering water electromagnetic valve is opened, former water passes into the original water inlet end of reverse osmosis membrane group through topping-up pump, and discharged by the waste water ratio valve of the condensed water in RO film by the first smart valve, former washing time is 8-10 second, be preferably 8 seconds, so far complete another step RO film pure water backwash process;
(4) replace in flushing process in positive and negative two steps, hocketed by the positive flushing process of RO film pure water and RO film pure water backwash process;
(5) basis source of intelligent controller control is in smart water quality monitor, by smart water quality monitor, and the total dissolved solid material TDS value of Real-Time Monitoring water-purifying machine, reverse osmosis membrane pollution index SDI value; When former water TDS value be greater than 500PPM be less than 1000PPM time, 10 minutes rinse once, when former water TDS value is less than 500PPM, within 20 minutes, rinse once, when the SDI of RO film is less than 5, control to rinse once for 20 minutes, when the SDI of RO film is greater than 5, within 10 minutes, rinse once.
Replace in flushing process in positive and negative two steps, each flushing process is divided into:
The positive flushing process of RO film pure water is once, and RO film pure water backwash process is another time, hockets for twice;
Or
Then RO film pure water backwash process after the positive flushing process of RO film pure water completes, positive and negative two steps hocket for once.
Waste water ratio valve is adjusted to pure water flow and Concentrate flow is reached for 1:1, and the RO membrane lifetime water amount of reverse osmosis membrane group is more than 6000 liters.
A kind of reverse osmosis water purifier, it comprises three grades of preprocessing filter element, topping-up pump, reverse osmosis membrane group, post active carbon, clear water faucet and pressure pot, it is also provided with intelligent pure water positive and negative alternate flushing water-saving system, and one or both systems in temperature steady flow Controlling System and Waste Water Treatment;
Intelligence pure water positive and negative alternate flushing water-saving system comprises smart water quality monitor, entering water electromagnetic valve, the first smart valve, the second smart valve, the 3rd smart valve, the first reverse checkvalve, the second reverse checkvalve and intelligent controller, first smart valve comprises flush valve and waste water ratio valve, and smart water quality monitor is arranged in the front end water inlet pipe of three grades of preprocessing filter element; Entering water electromagnetic valve is arranged on three grades between preprocessing filter element and topping-up pump; First smart valve is arranged on the condensed water exit of reverse osmosis membrane group;
The pure water outlet of reverse osmosis membrane group is divided into the two-way of connection,
The first via is communicated with pressure pot by the second smart valve and high-voltage switch gear; Pressure pot goes out interruption-forming back flushing passage by the pure water of high-voltage switch gear, the second smart valve and reverse osmosis membrane group;
Second tunnel is by after the first reverse checkvalve, and be divided into again three tunnels of connection, high-voltage switch gear of leading up to is communicated with pressure pot, the inlet communication of two tunnels and post active carbon, and three tunnels are communicated with the original water inlet of reverse osmosis membrane group by the 3rd smart valve, the second reverse checkvalve; The original water inlet of pressure pot, high-voltage switch gear, the 3rd smart valve, the second reverse checkvalve and reverse osmosis membrane group forms positive irrigation channel.
Second tunnel is divided into three tunnels of connection again after being connected with back pressure regulator by the first reverse checkvalve.
Described temperature steady flow set-up of control system is between three grades of preprocessing filter element and reverse osmosis membrane group, comprise heating component and temperature probe, the outlet of three grades of preprocessing filter element and the inlet communication of heating component, heating component outlet, by the inlet communication of entering water electromagnetic valve, topping-up pump and reverse osmosis membrane group, the pipeline between topping-up pump and reverse osmosis membrane group is provided with temperature probe and flow inductor.
The pipeline of heating component with entering water electromagnetic valve is provided with export and is connected with overheating protection pressure switch, overheating protection pressure switch is communicated with the water-in of micro pump by pipeline, and the water outlet of micro pump is communicated with the water inlet pipe of three grades of preprocessing filter element.
Described Waste Water Treatment comprises smart water quality monitor and return of waste water device, return of waste water pipeline is provided with between the condensed water outlet and topping-up pump of reverse osmosis membrane group, condensed water outlet by after smart water quality monitor respectively valve port intelligent with first be communicated with the water-in of return of waste water device, pipeline between entering water electromagnetic valve and topping-up pump is provided with backflow water-in, and the water outlet of return of waste water device is communicated with this backflow water-in by the 3rd reverse checkvalve.
Beneficial effect of the present invention:
1, be 1:1 by being realized by Intelligence Stanza Water System purifying waste water with the ratio of condensed water, even higher;
2, by intelligent positive and negative flushing water-saving Systematical control pure water positive back flushing RO film, dilution and punching de-RO film top layer organic colloid, inorganic salt etc., extend the life-span of RO film.
3, by temperature steady flow Controlling System, the thermostat water inlet water temperature that provides applicable reverse osmosis membrane to use can be started lower than the situation of less than 10 DEG C in former water water temperature, the reverse osmosis membrane water improved under low temperature environment reaches a stable flow, shorten the water purification mechanism water time, by pressure before current inductor block controlling diaphragm, reach the work-ing life of voltage stabilization and current stabilization effect and prolongation reverse osmosis membrane.
4, Waste Water Treatment has water-saving and emission-reducing, improves former Water Sproading rate, can reach the effect of micro-discharge.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the control block diagram of the embodiment of the present invention;
Fig. 3 is traditional ratio of desalinization variation diagram of the embodiment of the present invention 1;
Fig. 4 is the changes in contrast figure of the pure water flow velocity of the embodiment of the present invention 1.
Embodiment
The present invention is by the following examples can the invention will be further described, but scope of the present invention is not limited to following embodiment, can carry out various change without departing from the spirit and scope of the invention.
Embodiment 1: see Fig. 1-2.
The present embodiment water purification system by inlet triplet for water ball valve 1, smart water quality monitor 2, three grades of preprocessing filter element 3, entering water electromagnetic valve 4, topping-up pump 5, reverse osmosis membrane group 6, first reverse checkvalve 7, first smart valve 8, first smart valve 8 comprises flush valve and waste water ratio valve, post active carbon 9, the second smart valve 10, high-voltage switch gear 11,3rd smart valve 12, second reverse checkvalve 13, clear water faucet 14, pressure pot 15, parts such as intelligent controller 16 grade form.
Tap water accesses water purification system through inlet triplet for water ball valve 1 by water pipe, be provided with smart water quality monitor 2 therebetween, smart water quality monitor 2 is arranged in the water inlet pipe front end of three grades of preprocessing filter element 3, the rising pipe of three grades of preprocessing filter element 3 divides two-way, and the first via is directly connected with clear water faucet 14 as domestic water; Second tunnel is connected with the water-in of topping-up pump 5 by entering water electromagnetic valve 4.
Topping-up pump 5 water outlet is divided into the two-way of connection, the first via of topping-up pump 5 water outlet is connected with the original water inlet of reverse osmosis membrane group 6, the condensed water outlet of reverse osmosis membrane group 6 is discharged by the first smart valve 8, and pure water outlet is communicated with post active carbon 9 with pressure pot 15 respectively; That is:
Pure water outlet is divided into again the two-way of connection,
The first via is communicated with pressure pot 15 by the second smart valve 10 and high-voltage switch gear 11, and the second smart valve 10 to provide the intelligent control valve of pressure for pressure pot 15 to reverse osmosis membrane group 6; Pressure pot 15 goes out interruption-forming back flushing passage by high-voltage switch gear 11, second smart valve 10 and the pure water of reverse osmosis membrane group 6;
Second tunnel is by after the first reverse checkvalve 7, be divided into again three tunnels of connection, high-voltage switch gear 11 of leading up to is communicated with pressure pot 15, the inlet communication of two tunnels and post active carbon 9, three tunnels are communicated with the second tunnel of topping-up pump 5 water outlet and the original water inlet of reverse osmosis membrane group 6 by the 3rd smart valve 12, second reverse checkvalve 13; The original water inlet of pressure pot 15, high-voltage switch gear 11, the 3rd smart valve 12, second reverse checkvalve 13 and reverse osmosis membrane group 6 forms positive irrigation channel.
The direction of the first reverse checkvalve 7 is the check valve of reverse osmosis membrane group 6 toward post active carbon 9, and the import of post active carbon 9 is communicated with pressure pot 15 by high-voltage switch gear 11.
When setting up back pressure regulator 107:
Second tunnel is divided into three tunnels of connection again after being connected with back pressure regulator 107 by the first reverse checkvalve 7; The back pressure problems that pressure pot causes can be efficiently solved, and the problem that reverse osmosis module water amount is unstable and reverse osmosis module water amount is few, concentrated water drainage amount is large, the problem that the pressure pot storage full time is long.
The direction of the second reverse checkvalve 13 is the check valve of pure water outlet toward the original water inlet of reverse osmosis membrane group 6 of pressure pot 15 and reverse osmosis membrane group 6.
The outlet of post active carbon 9 is connected with clear water faucet 14.
When setting up thermostat:
Thermostat by micro pump 82, overheating protection pressure switch 83, heating component 84, entering water electromagnetic valve 4, topping-up pump 5, temperature probe 87, composition such as flow inductor 88 grade.The outlet of three grades of preprocessing filter element 3 and the inlet communication of heating component 84, heating component 84 exports by the inlet communication of entering water electromagnetic valve 4 with reverse osmosis membrane group 6, the pipeline between topping-up pump 5 and reverse osmosis membrane group 6 is provided with temperature probe 87 and flow inductor 88; The pipeline of heating component 84 with entering water electromagnetic valve 4 is provided with to export and is connected with overheating protection pressure switch 83; overheating protection pressure switch 83 is communicated with by the water-in of pipeline with micro pump 82, and the water outlet of micro pump 82 is communicated with the water inlet pipe of three grades of preprocessing filter element 3.
Water treatment procedure:
1, tap water is through first three grade of preprocessing filter element, large granular impurity and the chlorine residue etc. such as filtering silt particle, iron rust, algae, ensures the influent quality of RO.
2, the pretreated water of the third stage can provide as domestic water, meet wash dish, wash one's face and rinse one's mouth, sanitation and hygiene etc.
3, water after pre-treatment, enters RO film through topping-up pump supercharging.
4, pure water is separated with condensed water by former water after RO membrane filtration, and pure water is for subsequent use through reverse checkvalve cut-in pressure bucket, and condensed water is discharged via the first smart valve.
When clear water faucet 14 is opened, water for subsequent use and the pure water directly after RO membrane filtration in pressure pot, pass into post active carbon process, clear water faucet 14 goes out pure water.
Temperature steady flow process: three grades, water source preprocessing filter element 3; enter heating component 84; temp probe 87 before film responds to inflow temperature; when film inflow temperature is less than 10 DEG C, control heating component 84 by intelligent controller 16 and start, by constant for water temperature before film at 25-30 DEG C; when water temperature over-high before film; control overheating protection pressure switch 83 by temperature probe 87, intelligent controller 16, micro pump 82 starts, and prevents water temperature over-high before film.Flow inductor 88 plays does current stabilization effect.
Reverse osmosis membrane is in former water water temperature lower than less than 10 DEG C, and water production rate obviously declines, thus causes water purification mechanism water overlong time, and even do not shut down, topping-up pump load increases, and affects film work-ing life.Therefore, thermostat generally can not run under normal conditions.
RO film flushing process: point positive and negative two step flushing processes:
The positive flushing process of RO film pure water: when pure water stores full in pressure pot 15, entering water electromagnetic valve 4 is closed, the flush valve of the first smart valve 8 is closed, second smart valve 10 is closed, 3rd smart valve 12 is opened, the waste water ratio valve of the first smart valve 8 is opened, the pure water that pressure pot is 15 li enters the original water inlet of RO film 6 under pressure through the 3rd smart valve 12 and the second reverse checkvalve 13, pure water is utilized to have strong solvability, from front by reverse osmosis membrane surface impurity (as: iron, magnesium, calcium, plumbous, plasma) dissolve, dissolution time is 5-8 seconds, be preferably 5 seconds, afterwards, 3rd smart valve 12 is closed, flush valve and the waste water ratio valve of the first smart valve 8 are opened, entering water electromagnetic valve 4 is opened, former water passes into RO film original water inlet end through topping-up pump 5, the waste water ratio valve of condensed water in RO film by the first smart valve 8 is discharged, former washing time is 8-10 second, be preferably 8 seconds, so far the positive flushing process of a step RO film pure water is completed, when RO film need rinse again, enter pure water backwash process.
RO film pure water backwash process: when system enters pure water backwash process, entering water electromagnetic valve 4 is closed, the flush valve of the first smart valve 8 is closed, 3rd smart valve 12 is closed, second smart valve 10 is opened, the waste water ratio valve of the first smart valve 8 is opened, the pure water that pressure pot is 15 li enters the pure water exit end of RO film 6 under pressure through the second smart valve 10, pure water is utilized to have strong solvability, from the negative by reverse osmosis membrane surface impurity (as: iron, magnesium, calcium, plumbous, plasma) dissolve, dissolution time is 5-8 seconds, be preferably 5 seconds, now the second smart valve 10 is closed, flush valve and the waste water ratio valve of the first smart valve 8 are opened, entering water electromagnetic valve 4 is opened, former water passes into RO film original water inlet end through topping-up pump 5, the waste water ratio valve of condensed water in RO film by the first smart valve 8 is discharged, former washing time is 8-10 second, be preferably 8 seconds, so far a step RO film pure water backwash process is completed.
In positive and negative two step flushing processes, hocketed by the positive flushing process of RO film pure water and RO film pure water backwash process.
Control section is by TDS value, the SDI value of smart water quality monitor 2 Real-Time Monitoring water-purifying machine; When former water TDS value be greater than 500PPM be less than 1000PPM time, 10 minutes rinse once, when former water TDS value is less than 500PPM, within 20 minutes, rinse once, when the SDI of RO film is less than 5, control to rinse once for 20 minutes, when the SDI of RO film is greater than 5, within 10 minutes, rinse once.
The theoretical test data analysis of the present invention and embodiment 1 and prior art:
Test conditions:
The comparison of the ratio of desalinization 1, during same pure water amount;
2, velocity ratio during same pure water amount comparatively;
3, under equal conditions: room temperature 25 degree, frequency 2 times/h is rinsed;
Filtering system A: traditional water-purifying machine is only useless compares 1:3;
Filtering system B: water-purifying machine of the present invention is only useless compares 1:3;
Filtering system C: water-purifying machine of the present invention is only useless compares 1:1.
One, as Fig. 3, traditional ratio of desalinization mutation analysis:
Because of the life-span of water amount reaction RO film, water amount is many, ratio of desalinization and flow indicator good, filtering system performance is strong, and RO film ratio of desalinization reach 90% be only qualified, the changes in contrast figure of ratio of desalinization; The comparison of ratio of desalinization during same pure water amount, when pure water amount is at 6000 liters, A ratio of desalinization is 91.3%, B ratio of desalinization be 97%, C ratio of desalinization is 92.5%;
This shows that water-purifying machine of the present invention adopts clean expense than time for 1:3, the work-ing life of RO film during ultra-traditional water-purifying machine employing far away 1:3 in its work-ing life, and water-purifying machine employing of the present invention takes than time for 1:1 only, when its work-ing life and traditional water-purifying machine adopt 1:3, the life-span of RO film is substantially identical.
Two, as Fig. 4, the changes in contrast analysis of pure water flow velocity:
As Fig. 4 can obtain, the changes in contrast of pure water flow velocity; Comparatively, when pure water amount is at 6000 liters, A flow velocity is 87.3ml/min B flow velocity be 130ml/min C flow velocity is 99ml/min to velocity ratio during same pure water amount;
Water-purifying machine of the present invention adopts and only takes than time for 1:3, and its flow velocity is far longer than flow velocity during traditional water-purifying machine employing 1:3.And water-purifying machine employing of the present invention takes than time for 1:1 only, its flow velocity is also greater than flow velocity during traditional water-purifying machine employing 1:3.
Its water total amount and wastewater flow rate be far smaller than traditional water-purifying machine adopt 1:3 time water total amount and wastewater flow rate.And water-purifying machine of the present invention adopts and only take than time for 1:1, the water total amount when total water consumption manufacturing pure water is also far smaller than traditional water-purifying machine employing 1:3.
Therefore, purging method of the present invention is adopted when guarantee film work-ing life, water-purifying machine can be realized and only take than being 1:1.
For optimizing raising developing result further, then RO film pure water backwash process after the positive flushing process of RO film pure water completes, positive and negative two steps hocket for once.
Embodiment 2: be also provided with Waste Water Treatment, comprises return of waste water device the 47, three reverse checkvalve 48, and parts such as smart water quality monitor 412 grade form.
The condensed water outlet of reverse osmosis membrane group 6 is by smart water quality monitor 412 He, first smart valve 8 is discharged, pipeline between smart water quality monitor 412 with the first smart valve 8 is provided with water outlet be communicated with the water-in of return of waste water device 47, pipeline between entering water electromagnetic valve 4 and topping-up pump 5 is provided with backflow water-in, and the water outlet of return of waste water device 47 is communicated with this backflow water-in by the 3rd reverse checkvalve 48.
Through the waste water of reverse osmosis membrane group 6, under the effect of topping-up pump 5, again pass through return of waste water device 47 with the flow of 300ml/min.Mix with former water after the softening desalination of polishing resin through KDF filtrate, weaker concn, enter reverse osmosis membrane group 6 at a high speed, again filter purification.Because the glassware for drinking water entering reverse osmosis membrane group 6 has the feature of lower concentration and high flow rate, thus reduce the generation of concentration polarization in film, extend the work-ing life of film.
After reverse osmosis membrane group 6, wastewater outlet side is provided with smart water quality monitor 412, can respond to the concentration of waste water salt, feed back to the first smart valve 8.When concentration value reaches certain set(ting)value, the first smart valve 8 opens water route, carries out instantaneous discharge, thus reaches flushing reverse osmosis membrane group 6 surface, reduces the effect of salt concn.
By the way, useless only than being reduced to trace waste water discharge by traditional 3:1.
Major technique ensures:
1, return of waste water device 47 is filled with desalination soft water filtrate.
2, filtrate adopts food grade polishing resin to mix with KDF, and polishing resin loadings is at 200-250 gram, KDF loadings 80-100 gram.
3. polishing resinous electricity conductance is dry after below 10us/cm pure water soaks 2 hours, then KDF55 is dried after 2 hours through 10%Nacl solution soaking, is respectively charged in filter-core shell.(centre adds the porose dividing plate of PP, distinguishes polishing resin and KDF)
4, polishing resin is mixed by hydro-strong acidic cation exchange resin and hydrogen-oxygen type strongly basic anion exchange resin.The filtration unit of anion and cation exchange resin mixed packing according to a certain percentage, anions and canons in water, negatively charged ion in resin layer water is replaced by hydroxide ion, positively charged ion in water is replaced by hydrogen ion, enter hydroxide ion in water and hydrogen ion forms water molecules, thus reach the effect of desalination.Resin anion(R.A) volume: resin cation (R.C.) volume=2:1.
5, polishing resin is without the need to regeneration.
6, the effect of KDF treatment media to calcium carbonate scale has two aspects: according to pH value and the relation between gas concentration lwevel and dissolution of calcium carbonate degree, when carbonic acid gas removes from solution, pH value raises, thus the solubleness of calcium carbonate is made to reduce, KDF also makes the pH value of water raise by electrochemical reaction, reduce the solubleness of calcium carbonate, result makes calcium carbonate separate out; On the other hand, due to oozing out of zine ion in KDF, zinc ion content in water increases to some extent, in water, the existence of zine ion can change the crystal formation mechanism of incrustation scale, the calcium carbonate scale in water is made to produce precipitation with the crystal habit of aragonite, the wall of container forms soft dirt, instead of crystallization is the hard scale of calcite type, is easily washed out.
Claims (10)
1. an intelligent pure water positive and negative alternate flushing water-saving system, it comprises smart water quality monitor (2), entering water electromagnetic valve (4), the first smart valve (8), the second smart valve (10), the 3rd smart valve (12), the first reverse checkvalve (7), the second reverse checkvalve (13) and intelligent controller (16), first smart valve (8) comprises flush valve and waste water ratio valve, it is characterized in that, smart water quality monitor (2) is arranged in the front end water inlet pipe of three grades of preprocessing filter element (3); Entering water electromagnetic valve (4) is arranged between three grades of preprocessing filter element (3) and topping-up pump (5); First smart valve (8) is arranged on the condensed water exit of reverse osmosis membrane group (6);
The pure water outlet of reverse osmosis membrane group (6) is divided into the two-way of connection,
The first via is communicated with pressure pot (15) by the second smart valve (10) and high-voltage switch gear (11); Pressure pot (15) goes out interruption-forming back flushing passage by high-voltage switch gear (11), the second smart valve (10) with the pure water of reverse osmosis membrane group (6);
Second tunnel is by after the first reverse checkvalve (7), be divided into again three tunnels of connection, high-voltage switch gear (11) of leading up to is communicated with pressure pot (15), the inlet communication of two tunnels and post active carbon (9), three tunnels are communicated with the original water inlet of reverse osmosis membrane group (6) by the 3rd smart valve (12), the second reverse checkvalve (13); The original water inlet of pressure pot (15), high-voltage switch gear (11), the 3rd smart valve (12), the second reverse checkvalve (13) and reverse osmosis membrane group (6) forms positive irrigation channel.
2. one according to claim 1 intelligent pure water positive and negative alternate flushing water-saving system, it is characterized in that, the check valve that first reverse checkvalve (7) is pure water Way out, the pure water outlet that the second reverse checkvalve (13) is pressure pot (15) and reverse osmosis membrane group (6) is toward the check valve in the original water inlet direction of reverse osmosis membrane group (6).
3. one according to claim 1 and 2 intelligent pure water positive and negative alternate flushing water-saving system, it is characterized in that, positive and negative alternate purging method is as follows:
(1) the positive flushing process of RO film pure water: when pure water stores full in pressure pot (15), controlled by intelligent controller (16), entering water electromagnetic valve (4) is closed, the flush valve of the first smart valve (8) is closed, second smart valve (10) is closed, 3rd smart valve (12) is opened, the waste water ratio valve of the first smart valve (8) is opened, the inner pure water of pressure pot (15) enters the original water inlet of reverse osmosis membrane group (6) under pressure through the 3rd smart valve (12) and the second reverse checkvalve (13), pure water is utilized to have strong solvability, from front by reverse osmosis membrane surface impurity, mainly comprise iron, magnesium, calcium and lead ion, dissolve, dissolution time is 5-8 seconds, be preferably 5 seconds,
After dissolving completes, 3rd smart valve (12) is closed, flush valve and the waste water ratio valve of the first smart valve (8) are opened, entering water electromagnetic valve (4) is opened, former water passes into the original water inlet end of reverse osmosis membrane group (6) through topping-up pump (5), the waste water ratio valve of condensed water in reverse osmosis membrane group (6) by the first smart valve (8) is discharged, former washing time is 8-10 second, be preferably 8 seconds, so far complete the positive flushing process of a step RO film pure water;
(2) controlled to enter pure water backwash process by intelligent controller (16);
(3) RO film pure water backwash process: when system enters pure water backwash process, entering water electromagnetic valve (4) is closed, the flush valve of the first smart valve (8) is closed, 3rd smart valve (12) is closed, second smart valve (10) is opened, the waste water ratio valve of the first smart valve (8) is opened, the inner pure water of pressure pot (15) enters the pure water exit end of reverse osmosis membrane group (6) under pressure through the second smart valve (10), pure water is utilized to have strong solvability, from the negative by reverse osmosis membrane surface impurity, mainly comprise iron, magnesium, calcium and lead ion, dissolve, dissolution time is 5-8 seconds, be preferably 5 seconds,
After dissolving completes, second smart valve (10) is closed, flush valve and the waste water ratio valve of the first smart valve (8) are opened, entering water electromagnetic valve (4) is opened, former water passes into the original water inlet end of reverse osmosis membrane group (6) through topping-up pump (5), and discharged by the waste water ratio valve of the condensed water in RO film by the first smart valve (8), former washing time is 8-10 second, be preferably 8 seconds, so far complete another step RO film pure water backwash process;
(4) replace in flushing process in positive and negative two steps, hocketed by the positive flushing process of RO film pure water and RO film pure water backwash process;
(5) basis source that controls of intelligent controller (16) is in smart water quality monitor (2), by smart water quality monitor (2), the total dissolved solid material TDS value of Real-Time Monitoring water-purifying machine, reverse osmosis membrane pollution index SDI value; When former water TDS value be greater than 500PPM be less than 1000PPM time, 10 minutes rinse once, when former water TDS value is less than 500PPM, within 20 minutes, rinse once, when the SDI of RO film is less than 5, control to rinse once for 20 minutes, when the SDI of RO film is greater than 5, within 10 minutes, rinse once.
4. one according to claim 3 intelligent pure water positive and negative alternate flushing water-saving system, is characterized in that, replace in flushing process in positive and negative two steps, each flushing process is divided into:
The positive flushing process of RO film pure water is once, and RO film pure water backwash process is another time, hockets for twice;
Or
Then RO film pure water backwash process after the positive flushing process of RO film pure water completes, positive and negative two steps hocket for once.
5. the one intelligence pure water positive and negative alternate flushing water-saving system according to claim 3 or 4, is characterized in that,
Waste water ratio valve is adjusted to pure water flow and Concentrate flow is reached for 1:1, and the RO membrane lifetime water amount of reverse osmosis membrane group (6) is more than 6000 liters.
6. a reverse osmosis water purifier, it comprises three grades of preprocessing filter element (3), topping-up pump (5), reverse osmosis membrane group (6), post active carbon (9), clear water faucet (14) and pressure pot (15), is characterized in that, it is also provided with intelligent pure water positive and negative alternate flushing water-saving system;
Intelligence pure water positive and negative alternate flushing water-saving system comprises smart water quality monitor (2), entering water electromagnetic valve (4), the first smart valve (8), the second smart valve (10), the 3rd smart valve (12), the first reverse checkvalve (7), the second reverse checkvalve (13) and intelligent controller (16), first smart valve (8) comprises flush valve and waste water ratio valve, and smart water quality monitor (2) is arranged in the front end water inlet pipe of three grades of preprocessing filter element (3); Entering water electromagnetic valve (4) is arranged between three grades of preprocessing filter element (3) and topping-up pump (5); First smart valve (8) is arranged on the condensed water exit of reverse osmosis membrane group (6);
The pure water outlet of reverse osmosis membrane group (6) is divided into the two-way of connection,
The first via is communicated with pressure pot (15) by the second smart valve (10) and high-voltage switch gear (11); Pressure pot (15) goes out interruption-forming back flushing passage by high-voltage switch gear (11), the second smart valve (10) with the pure water of reverse osmosis membrane group (6);
Second tunnel is by after the first reverse checkvalve (7), be divided into again three tunnels of connection, high-voltage switch gear (11) of leading up to is communicated with pressure pot (15), the inlet communication of two tunnels and post active carbon (9), three tunnels are communicated with the original water inlet of reverse osmosis membrane group (6) by the 3rd smart valve (12), the second reverse checkvalve (13); The original water inlet of pressure pot (15), high-voltage switch gear (11), the 3rd smart valve (12), the second reverse checkvalve (13) and reverse osmosis membrane group (6) forms positive irrigation channel.
7. a kind of reverse osmosis water purifier according to claim 5, it is characterized in that, it is also provided with back pressure regulator (107), and the second tunnel is divided into three tunnels of connection again after being connected with back pressure regulator (107) by the first reverse checkvalve (7).
8. a kind of reverse osmosis water purifier according to claim 6 or 7, it is characterized in that, it is also provided with temperature steady flow Controlling System, described temperature steady flow set-up of control system is between three grades of preprocessing filter element (3) and reverse osmosis membrane group (6), comprise heating component (84) and temperature probe (87), the outlet of three grades of preprocessing filter element (3) and the inlet communication of heating component (84), heating component (84) outlet is by entering water electromagnetic valve (4), the inlet communication of topping-up pump (5) and reverse osmosis membrane group (6), pipeline between topping-up pump (5) and reverse osmosis membrane group (6) is provided with temperature probe (87) and flow inductor (88).
9. a kind of reverse osmosis water purifier according to claim 7; it is characterized in that; be connected with overheating protection pressure switch (83) with the pipeline of entering water electromagnetic valve (4) being provided with export at heating component (84); overheating protection pressure switch (83) is communicated with by the water-in of pipeline with micro pump (82), and the water outlet of micro pump (82) is communicated with the water inlet pipe of three grades of preprocessing filter element (3).
10. a kind of reverse osmosis water purifier according to claim 6 or 7, it is characterized in that, it is also provided with Waste Water Treatment, described Waste Water Treatment comprises smart water quality monitor (412) and return of waste water device (47), return of waste water pipeline is provided with between the condensed water outlet and topping-up pump (5) of reverse osmosis membrane group (6), condensed water outlet is by being communicated with the water-in of the first smart valve (8) mouth with return of waste water device (47) respectively after smart water quality monitor (412), pipeline between entering water electromagnetic valve (4) and topping-up pump (5) is provided with backflow water-in, the water outlet of return of waste water device (47) is communicated with this backflow water-in by the 3rd reverse checkvalve (48).
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| CN105585075A (en) * | 2015-12-17 | 2016-05-18 | 珠海格力电器股份有限公司 | Water purification system and flushing method thereof |
| CN106094903A (en) * | 2016-08-26 | 2016-11-09 | 曼瑞德集团有限公司 | A kind of purifier water outlet flow control system |
| CN106310947A (en) * | 2016-09-30 | 2017-01-11 | 广东福能达环保科技有限公司 | Positive and reverse flushing piston type water storage device, micro waste water RO (reverse osmosis) system and membrane flushing method |
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| CN107670505A (en) * | 2017-11-14 | 2018-02-09 | 珠海格力电器股份有限公司 | Integrated water route board, integrated water route board subassembly and purifier |
| CN109574147A (en) * | 2018-12-21 | 2019-04-05 | 文林涛 | A kind of RO reverse osmosis water purification machine of washing lotion class cosmetics |
| CN112209512A (en) * | 2019-07-10 | 2021-01-12 | 魏斯瓦瑟环境技术（嘉兴）有限公司 | Water purification system |
| CN110697923A (en) * | 2019-11-12 | 2020-01-17 | 珠海格力电器股份有限公司 | Intelligent water purification system and intelligent water purification method |
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