CN104773859A - Reverse osmosis water purifier as well as intelligent pure water back-flushing water-saving system and intelligent pure water back-flushing water-saving method - Google Patents

Reverse osmosis water purifier as well as intelligent pure water back-flushing water-saving system and intelligent pure water back-flushing water-saving method Download PDF

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Publication number
CN104773859A
CN104773859A CN201510173836.6A CN201510173836A CN104773859A CN 104773859 A CN104773859 A CN 104773859A CN 201510173836 A CN201510173836 A CN 201510173836A CN 104773859 A CN104773859 A CN 104773859A
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water
reverse osmosis
valve
osmosis membrane
smart
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赵福龙
杨书雄
唐斌
彭荣誉
何学成
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Jiangxi Shu Yuan Science And Technology Ltd
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Jiangxi Shu Yuan Science And Technology Ltd
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Abstract

The invention discloses a reverse osmosis water purifier as well as an intelligent pure water back-flushing water-saving system and an intelligent pure water back-flushing water-saving method. The reverse osmosis water purifier comprises an intelligent water quality monitor, a water inlet solenoid valve, a first non-return valve, first and second intelligent valves, a second non-return valve and a high-voltage switch. The reverse osmosis water purifier is characterized in that the intelligent water quality monitor is arranged in a water inlet tube of a tertiary pre-treatment filter element; the water inlet solenoid valve is arranged between the tertiary pre-treatment filter element and a booster pump; the first intelligent valve is arranged in a concentrated water outlet of a reverse osmosis film set; a pure water outlet of the reverse osmosis film set is divided into communicated three paths after passing through the first non-return valve, wherein the third path is as follows: a pressure barrel, the high-voltage switch, the second intelligent valve, the second non-return valve and a raw water inlet of the reverse osmosis membrane set form a positive flushing channel. According to the reverse osmosis water purifier, a proportion of purified water to concentrated water is 1 to 1, and the service life of the RO film is prolonged.

Description

A kind of reverse osmosis water purifier and intelligent pure water back flushing water-saving system and method
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 back 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 intelligent wash water saving fixtures, 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 back 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 back flushing water-saving system, it comprises smart water quality monitor, entering water electromagnetic valve, the first smart valve, the second smart valve, high-voltage switch gear and intelligent controller, first smart valve comprises flush valve and waste water ratio valve, and smart water quality monitor is arranged in the 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 of reverse osmosis membrane group exports the two-way being divided into connection and is communicated with post active carbon with pressure pot, pressure pot forms back flushing passage by the pure water outlet of high-voltage switch gear, the second smart valve and reverse osmosis membrane group, separately lead up to the inlet communication of reverse checkvalve and post active carbon, the direction of reverse checkvalve is the pure water Way out of reverse osmosis membrane group, and the import of post active carbon is communicated with pressure pot by high-voltage switch gear.
The two-way of pure water outlet by being divided into connection after reverse checkvalve of reverse osmosis membrane group, the inlet communication of a road and post active carbon, high-voltage switch gear of separately leading up to is communicated with pressure pot.
Back-flushing method is as follows:
(1), when in pressure pot, pure water stores full, controlled by intelligent controller, entering water electromagnetic valve is closed, second smart valve is opened, and the flush valve in the first smart valve is closed, and waste water ratio valve is opened, pure water in pressure pot enters the pure water water outlet of reverse osmosis membrane group under the effect of pressure pot pressure through 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;
(2) after, having dissolved, second smart valve is closed, flush valve in first smart valve and waste water ratio valve are opened, entering water electromagnetic valve is opened, former water passes into reverse osmosis membrane group original water inlet end through topping-up pump, and discharged by the waste water ratio valve of the condensed water in the RO film of reverse osmosis membrane group by the first smart valve, former washing time is 8-10 second, be preferably 8 seconds, complete once flushing process thus.
(3), intelligent controller control basis source in smart water quality monitor, by smart water quality monitor, the total dissolved solid material TDS value of Real-Time Monitoring water-purifying machine and 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.
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 back flushing water-saving system, and one or both systems in temperature steady flow Controlling System and Waste Water Treatment;
Intelligence pure water back flushing water-saving system comprises smart water quality monitor, entering water electromagnetic valve, the first smart valve, the second smart valve, high-voltage switch gear and intelligent controller, first smart valve comprises flush valve and waste water ratio valve, and smart water quality monitor is arranged in the 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 of reverse osmosis membrane group exports the two-way being divided into connection and is communicated with post active carbon with pressure pot, pressure pot forms back flushing passage by the pure water outlet of high-voltage switch gear, the second smart valve and reverse osmosis membrane group, separately lead up to the inlet communication of reverse checkvalve and post active carbon, the direction of reverse checkvalve is the pure water Way out of reverse osmosis membrane group, and the import of post active carbon is communicated with pressure pot by high-voltage switch gear.
The pure water of reverse osmosis membrane group is divided into the two-way of connection again after exporting and being connected with back pressure regulator by reverse checkvalve, the inlet communication of a road and post active carbon, high-voltage switch gear of separately leading up to is communicated with pressure pot.
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 is by being communicated with the water-in of the first smart valve with return of waste water device respectively after smart water quality monitor, 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.
2, control pure water rinsing RO film by intelligent wash water-saving system, dilution 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, smart water quality monitor 2, reverse osmosis membrane group 6, reverse checkvalve 7, the first smart valve 8-1, first smart valve 8-1 comprises flush valve and waste water ratio valve, the second smart valve 8-2, post active carbon 9, high-voltage switch gear 10, pressure pot 11, clear water faucet 12, parts such as intelligent controller 13 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 of three grades of preprocessing filter element 3, the rising pipe of three grades of preprocessing filter element 3 is divided into the two-way of connection, and the first via is directly connected with clear water faucet 12 as domestic water; Second tunnel is connected with the water-in of topping-up pump 5 by entering water electromagnetic valve 4, the water outlet of topping-up pump 5 is connected with the original water inlet of reverse osmosis membrane group 6, the water outlet of reverse osmosis membrane group 6 is divided into two-way again, the condensed water outlet of reverse osmosis membrane group 6 is by the first smart valve 8-1 discharge, and the pure water outlet of reverse osmosis membrane group 6 is communicated with post active carbon 9 with pressure pot 11 respectively; That is:
The pure water outlet of reverse osmosis membrane group 6 is communicated with pressure pot 11 by the second smart valve 8-2 and high-voltage switch gear 10 on the one hand, and the second smart valve 8-2 to provide the intelligent control valve of pure water for pressure pot 11 to reverse osmosis membrane group 6;
Pure water outlet is on the other hand by after reverse checkvalve 7, the inlet communication of one tunnel and post active carbon 9, high-voltage switch gear 10 of separately leading up to is communicated with pressure pot 11, the direction of reverse checkvalve 7 is the pure water Way out of reverse osmosis membrane group 6, and the import of post active carbon 9 is simultaneously communicated with pressure pot 11 by high-voltage switch gear 10.The outlet of post active carbon 9 is connected with clear water faucet 12.
When setting up back pressure regulator 107:
The pure water of reverse osmosis membrane group 6 is divided into the two-way of connection again after exporting and being connected with back pressure regulator 107 by reverse checkvalve 7, the inlet communication of a road and post active carbon 9, and high-voltage switch gear 10 of separately leading up to is communicated with pressure pot 11;
Back pressure regulator 107 can efficiently solve the back pressure problems that pressure pot causes, 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.
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 11, and condensed water is discharged via the first smart valve 8-1.
When clear water faucet 12 is opened, water for subsequent use and the pure water directly after RO membrane filtration in pressure pot 11, pass into post active carbon 9 and process, clear water faucet 12 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 13 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 13, 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.
Enter RO film to rinse when pure water stores full in pressure pot 11.
RO film flushing process: when pure water stores full in pressure pot 11, entering water electromagnetic valve 4 is closed, second smart valve 8-2 opens, flush valve in first smart valve 8-1 is closed, waste water ratio valve is opened, the pure water that pressure pot is 11 li enters RO film pure water water outlet through the second smart valve 8-2 under the effect of pressure pot pressure, 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, afterwards, second smart valve 8-2 closes, flush valve in first smart valve 8-1 and waste water ratio valve 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 1 is discharged, former washing time is 8-10 second, be preferably 8 seconds, complete once flushing thus.
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 90.7%, B ratio of desalinization be 95.5%, C ratio of desalinization is 91.5%;
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 87ml/min B flow velocity be 118ml/min C flow velocity is 97ml/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 achieved and only take than being 1:1.
Embodiment 2: be also provided with Waste Water Treatment, comprises return of waste water device the 47, three reverse checkvalve 48, parts such as smart water quality monitor 412 grade.
The condensed water outlet of reverse osmosis membrane group 6 is discharged by smart water quality monitor 412 and the first smart valve 8, 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, condensed water 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 (9)

1. an intelligent pure water back flushing water-saving system, it comprises smart water quality monitor (2), entering water electromagnetic valve (4), the first smart valve (8-1), the second smart valve (8-2), high-voltage switch gear (10) and intelligent controller (13), first smart valve (8-1) comprises flush valve and waste water ratio valve, it is characterized in that, smart water quality monitor (2) is arranged in the 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 (8-1) is arranged on the condensed water exit of reverse osmosis membrane group (6), the pure water of reverse osmosis membrane group (6) exports the two-way being divided into connection and is communicated with post active carbon (9) with pressure pot (11), pressure pot (11) is by high-voltage switch gear (10), second smart valve (8-2) forms back flushing passage with the pure water outlet of reverse osmosis membrane group (6), separately lead up to the inlet communication of reverse checkvalve (7) and post active carbon (9), the direction of reverse checkvalve (7) is the pure water Way out of reverse osmosis membrane group (6), the import of post active carbon (9) is communicated with pressure pot (11) by high-voltage switch gear (10).
2. one according to claim 1 intelligent pure water back flushing water-saving system, it is characterized in that, the two-way of pure water outlet by being divided into connection after reverse checkvalve (7) of reverse osmosis membrane group (6), the inlet communication of one tunnel and post active carbon (9), high-voltage switch gear (10) of separately leading up to is communicated with pressure pot (11).
3. one according to claim 1 and 2 intelligent pure water back flushing water-saving system, is characterized in that back-flushing method is as follows:
(1), when in pressure pot (11), pure water stores full, controlled by intelligent controller (13), entering water electromagnetic valve (4) is closed, second smart valve (8-2) is opened, flush valve in first smart valve (8-1) is closed, waste water ratio valve is opened, the inner pure water of pressure pot (11) enters the pure water water outlet of reverse osmosis membrane group (6) under pressure through smart valve (8-2), 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,
(2) after, having dissolved, second smart valve (8-2) is closed, flush valve in first smart valve (8-1) and waste water ratio valve are opened, entering water electromagnetic valve (4) is opened, former water passes into reverse osmosis membrane group (6) original water inlet end through topping-up pump (5), the waste water ratio valve of condensed water in the RO film of reverse osmosis membrane group (6) by the first smart valve (8-1) is discharged, former washing time is 8-10 second, be preferably 8 seconds, complete once flushing process thus;
(3), the basis source that controls of intelligent controller (13) 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 and 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 back flushing water-saving system, 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.
5. 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 (12) and pressure pot (11), is characterized in that, it is also provided with intelligent pure water back flushing water-saving system;
Intelligence pure water back flushing water-saving system comprises smart water quality monitor (2), entering water electromagnetic valve (4), the first smart valve (8-1), the second smart valve (8-2), high-voltage switch gear (10) and intelligent controller (13), first smart valve (8-1) comprises flush valve and waste water ratio valve, and smart water quality monitor (2) is arranged in the 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 (8-1) is arranged on the condensed water exit of reverse osmosis membrane group (6), the pure water of reverse osmosis membrane group (6) exports the two-way being divided into connection and is communicated with post active carbon (9) with pressure pot (11), pressure pot (11) is by high-voltage switch gear (10), second smart valve (8-2) forms back flushing passage with the pure water outlet of reverse osmosis membrane group (6), separately lead up to the inlet communication of reverse checkvalve (7) and post active carbon (9), the direction of reverse checkvalve (7) is the pure water Way out of reverse osmosis membrane group (6), the import of post active carbon (9) is communicated with pressure pot (11) by high-voltage switch gear (10).
6. 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), the pure water of reverse osmosis membrane group (6) is divided into the two-way of connection again after exporting and being connected with back pressure regulator (107) by reverse checkvalve (7), the inlet communication of one tunnel and post active carbon 9, high-voltage switch gear (10) of separately leading up to is communicated with pressure pot (11).
7. a kind of reverse osmosis water purifier according to claim 5, 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).
8. 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).
9. a kind of reverse osmosis water purifier according to claim 5, 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) 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).
CN201510173836.6A 2015-04-14 2015-04-14 Reverse osmosis water purifier as well as intelligent pure water back-flushing water-saving system and intelligent pure water back-flushing water-saving method Pending CN104773859A (en)

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Application publication date: 20150715