CN208327550U - A kind of water saving water purifier of double film filterings - Google Patents

Abstract

The utility model relates to water-treatment technology fields, more particularly, to a kind of water saving water purifier of double film filterings.In order to effectively overcome the disadvantages of existing water purification system water yield is small, water use efficiency is low, remaining minerals and microelement are few after filtering, the purifier filters water flow by pretreatment, nanofiltration membrane, reverse osmosis membrane three times, valve is controlled to adjust to improve water yield and water use efficiency using intelligent controlling device, while intelligent controlling device guarantees that total salt rejection rate maintains a stationary value according to the data that TDS value collector provides.Under the premise of ensuring water purification requisite quality, so that water yield maximizes, the appropriate level of water purification mineral and microelement is also maintained.

Description

A kind of water saving water purifier of double film filterings

Technical field

The utility model relates to water-treatment technology fields, more particularly, to a kind of water-saving water purification cartridge of double film filterings It sets.

Background technique

With China's rapid development of economy, the pollution of great rivers is increasingly severe, the drinking water quality of city dweller Because water source ground contamination and urban water supply network backwardness are constantly declining.Meanwhile city river network pipe-line equipment is outmoded, water-tower water tank nobody Management, bacterium are exceeded, and metallic conduit and valve increasingly corrodes phenomena such as exceeded heavy metal is precipitated, cause water factory come out it is qualified certainly The water index exceeding standard of water but resident's family.Therefore, device for purifying potable water becomes more and more important, the water purification of developed country Machine popularity rate has generally been more than 80%, and the popularity rate of China is less than 5%, and industry market development space is huge.Reverse osmosis purified water Machine is purified the advantages that thoroughly efficient, water tasting is good, is had received consumer and favored extensively due to filter efficiency height.But at present Small-sized household reverse osmosis water purifier is not easy excessive, power consumption by current membrane technology, outer dimension on the market and noise cannot mistake The restriction of high factor haves the shortcomings that water yield is low, water use efficiency is low and purified water mineral, microelement are considerably less.

Utility model content

The utility model is to overcome defect described in the above-mentioned prior art, provides a kind of water-saving water purification cartridge of double film filterings It sets, which calculates total salt rejection rate and preset mark in real time by collected tap water TDS value and water purification TDS value in system Quasi- salt rejection rate compares, intelligent control return valve, improves water use efficiency, water yield increases while guaranteeing in water containing foot Measure minerals and microelement.

The technical solution adopted in the utility model is:

A kind of water saving water purifier of double films filtering, which is characterized in that the purifier includes pretreatment system, double Membrane filtration system, concentrated water processing system, outlet system and controlled for display system information and device and it is de- equipped with standard The intelligent control display of salt rate.

The pretreatment system by first pressure switch, the first TDS value collector, the first filter core, for control water inlet Solenoid valve sequential series composition；

Double membrane filtration systems are filtered by pressure pump, the pressure inductor for measuring double film water pressures, the second filter core, third Core sequential series composition, the third filter core are connected to the concentrated water outlet of the second filter core, the pressure pump and the solenoid valve phase Even；

The concentrated water processing system includes two parallel lines, is by flushing waste water proportioning valve, the second valve sequence respectively Concatenated concentrated water discharge branch and by concentrate recirculation regulating valve, the concentrate recirculation branch of the first valve sequential series, the flushing Waste water proportional valve, concentrate recirculation regulating valve connect to be exported in third filter core concentrated water, and first valve is connected to solenoid valve and pressure Between power pump；

The outlet system is composed in series by third valve, the 2nd TDS value collector, second pressure switching sequence, described Third valve connects the water purification outlet in the second filter core, third filter core；

The raw water TDS value and the 2nd TDS value collector that intelligent control display is acquired according to the first TDS value collector are adopted The water purification TDS value of the double film filterings of the process of collection, the total salt rejection rate of real time computation system are simultaneously compared with standard salt rejection rate, and intelligent control is dense Water return valve control concentrated water reenters double membrane filtration systems.

Second filter core is equipped with the nanofiltration membrane for being greater than 1nm substance for filter diameter, and the third filter core is equipped with and is used for Filter diameter is greater than the reverse osmosis membrane of 0.01nm substance；

The working pressure range of the nanofiltration membrane and the reverse osmosis membrane is 0.5Mpa-0.8Mpa, and work water temperature range is 20℃-28℃。

The concentrate recirculation regulating valve and the concentrated water displacement ratio of the flushing waste water proportioning valve are 3:1.

The intelligent control display and pretreatment system, double membrane filtration systems, concentrated water processing system, outlet system are electric Connection.

The intelligent control display setting standard salt rejection rate range is 85%-90%.

The work water pressure of the first pressure switch is 0.1 Mpa/m²More than.

First valve is for controlling water flow from third filter core to the check valve of concentrate recirculation direction one-way conduction；Institute Stating third valve is the check valve that direction one-way conduction is drunk for controlling water flow from the second filter core and third filter core to water purification；Institute Stating the second valve is for controlling water flow from flushing waste water proportioning valve to the check valve of concentrated water discharge direction one-way conduction；The punching Washing waste water proportional valve is electric-liquid type proportioning valve；The pressure pump is booster pump.

First filter core (3) is made of fusion-jet type polypropylene fibre, granular activated carbon and sintered type active carbon.

A kind of water saving water purifier of double film filterings further includes power supply adaptor.

Specifically, the pretreatment system by first pressure switch, the first TDS value collector, the first filter core, for controlling The solenoid valve sequential series of water inlet form.First pressure switch is connected to original water inlet, when water inlet (tap water) is cut off the water or water Pressure is less than 0.1Mpa/m²When, switch is placed in off, and system stalls are damaged with ensuring booster pump idle running.First TDS It is worth the acquisition that collector is used for tap water TDS value, calculates total salt rejection rate for intelligent control display and parameter is provided.First filter core by Fusion-jet type polypropylene fibre, granular activated carbon and sintered type active carbon composition are mainly used for adsorbing suspended matter in water, reduce coloration Turbidity removes odors, adsorbs chlorine residue, goes the content of dechlorination that can extend the service life of subsequent reverse osmosis membrane and nanofiltration membrane.Institute State solenoid valve be mainly used for control water inlet, when device operate normally when, solenoid valve open, make water flow be able to enter pressure pump and after Sequence system, when device stops working, solenoid valve closes that water flow is prevented to flow into postorder system.

Specifically, double membrane filtration systems by pressure pump, the pressure inductor for measuring double film water pressures, the second filter, Third filter core sequential series composition, the pressure pump are connected with the solenoid valve.Double membrane filtration systems are connected to pretreatment After system, pressure pump is connected in after solenoid valve.Pressure pump is a booster pump, is mainly used for increasing hydraulic pressure, promotes water flow logical Nanofiltration membrane and reverse osmosis membrane are crossed, meanwhile, pressure pump can be adjusted according to real-time running water pipe water pressure through double film water pressures Size.Pressure inductor passes through the hydraulic pressure of double film water streams for real-time measurement, provides parameter for intelligent control display.

Specifically, the concentrated water processing system includes two parallel lines, is by flushing waste water proportioning valve, the second valve respectively Door sequential series concentrated water discharge branch and by concentrate recirculation regulating valve, the concentrate recirculation branch of the first valve sequential series, institute State flushing waste water proportioning valve, concentrate recirculation regulating valve connects and exports in third filter core reverse osmosis membrane concentrated water, the first valve company It connects between solenoid valve and pressure pump.The concentrated water processing system is connected to the concentrated water outlet of third filter core reverse osmosis membrane, is divided into Two parts, a part of concentrated water make emission treatment, and another part concentrated water then makees reflow treatment.Concentrate recirculation regulating valve is controlled by intelligence It controls display and improves the recovery utilization rate of water, while ensuring that system normally takes off for adjusting the water size of concentrate recirculation Salt rate.First valve is check valve, mainly for ensuring that concentrated water unidirectionally flows back into pressure pump front end, the hydraulic pressure one at this individual event valve end As be higher than pressure pump leading portion pressure.Quantitative concentrated water is discharged in flushing waste water proportioning valve in proportion in system worked well, with this Ensure that purified water is up-to-standard, meanwhile, when flushing waste water proportioning valve standard-sized sheet, the flushing of film can be completed, the flushing 60 seconds that is such as switched on, It is respectively rinsed 5 seconds before work and after work.Second valve is check valve, is mainly used for preventing the pollutants such as exhaust gas, bacterium from concentrated water Discharge outlet enters water purification system.

Specifically, the outlet system is by third valve, the 2nd TDS value collector, second pressure switching sequence series connection group At, the third valve connect the second filter core, third filter core water purification outlet after.Third valve is check valve, for the second pressure Power switch provides trigger condition.2nd TDS value collector calculates total de- for acquiring water purification TDS value for intelligent control display Salt rate provides parameter.Second pressure switch, after water purification end is closed (after i.e. clear water faucet is closed), which provides to controller One stopping signal, system are out of service.

Specifically, raw water TDS value and the 2nd TDS value that intelligent control display is acquired according to the first TDS value collector The water purification TDS value of the double film filterings of the process of collector acquisition, the total salt rejection rate of real time computation system simultaneously compare, intelligence with standard salt rejection rate Concentrate recirculation regulating valve control concentrated water can be regulated and controled and reenter double membrane filtration systems.Intelligent control display passes through the first TDS value The data that collector and the 2nd TDS value collector obtain, the total salt rejection rate of computing system carry out pair with preset standard salt rejection rate Than adjusting the backflow water yield size of concentrate recirculation regulating valve, changing water purification TDS value, while discharging concentrated water in proportion, it is ensured that system Normal salt rejection rate is maintained, keeps guaranteeing purified water quality containing a certain amount of minerals in water purification with this.

The calculation formula of the total salt rejection rate of system are as follows:

System salt rejection rate=(tap water TDS-purified water TDS)/tap water TDS x 100%

When system salt rejection rate is lower than the 10% of the standard salt rejection rate set, intelligent control display is by adjusting concentrated water Return valve allows concentrate recirculation amount to increase, and with the increase of concentrate recirculation amount, the TDS value of purified water can be decreased, double films Operating pressure also reduce in succession, system salt rejection rate will increase, until system salt rejection rate go back up to it is de- equal to or less than standard Within the 10% of salt rate, water quality is guaranteed with this.

When system salt rejection rate is higher than the 10% of standard salt rejection rate, intelligent control display register concentrate recirculation regulating valve is allowed Concentrate recirculation amount reduces, and with the reduction of concentrate recirculation amount, the TDS value of purified water can be increased with it, the operating pressure of double films In succession increase, system salt rejection rate will reduce, until system salt rejection rate compared with as low as be equal to or less than 10% internal standard salt rejection rate with It is interior, water purification quality is ensured with this, and keep suitable minerals in water.

Further, second filter core is equipped with the nanofiltration membrane for being greater than 1nm substance for filter diameter, the third filter core Equipped with the reverse osmosis membrane for being greater than 0.01nm substance for filter diameter.

Second filter core main body is nanofiltration membrane, and the effect of nanofiltration membrane is, can retain the substance that substance size is 1nm, section Staying molecular weight is about 200-800, retains the ability of dissolubility salt between 20-99%, mainly removes Organic substance in water, pigment And high valence ion salt, while remaining a part of minerals and microelement.

Third filter core main body is reverse osmosis membrane, and it is most fine one kind that reverse osmosis membrane, which can retain the substance greater than 0.01nm, UF membrane product, all dissolution salts of energy effectively catching and molecular weight are greater than 100 organic matter, can be effectively removed in water Dissolved salts, colloid, microorganism, organic matter etc., only allow hydrone and dissolved oxygen to penetrate.

Further, the working pressure range of the nanofiltration membrane and the reverse osmosis membrane is 0.5Mpa-0.8Mpa, working water Warm range is 20 DEG C -28 DEG C.The utility model, which uses, is used in combination nanofiltration membrane and reverse osmosis membrane, that is, ensure that water quality, and mention Enough minerals and microelement are supplied, and double films are ultralow press mold, has adopted 1812 or 2012 traditional sizes, normally Under state, when operating pressure 0.5Mpa-0.8Mpa, water temperature are 20 DEG C -28 DEG C, yield is 527 milliliters, can provide and fill The water yield of foot.

Further, the concentrate recirculation regulating valve and the concentrated water displacement ratio setting of the flushing waste water proportioning valve are 3:1.In order to guarantee that water quality is sufficiently filtered, enough minerals and microelement are maintained, system needs to keep centainly dense Water regurgitant volume, while discharge unit concentrated water.In normal operating conditions, setting concentrate recirculation regulating valve and flushing waste water proportioning valve Displacement ratio be 3:1, the displacement of flushing waste water proportioning valve changes with the adjusting of concentrate recirculation regulating valve.

Further, the intelligent control display and pretreatment system, double membrane filtration systems, concentrated water processing system, go out Water system has electrical connection.The data of intelligent control display real-time display have: system running state (WiFi signal, flushing, water Full, water, water shortage, maintenance and leak processed), filter element life (dividing Pyatyi), tap water TDS value and purified water TDS value.

Further, the standard salt rejection rate setting range is 85%-90%.Using preceding first established standards salt rejection rate, this is de- Salt rate is generally set to 85-90% depending on the local originally water hardness and quality, and system is arranged by corresponding proportion within this range Waste water out improves the utilization rate of water while guaranteeing to contain suitable minerals and microelement in water purification.

Further, the work water pressure of the first pressure switch is 0.1 Mpa/m²More than.First pressure switch connection Original water inlet, when water inlet (tap water) cut off the water or hydraulic pressure be less than 0.1Mpa/m²When, switch is placed in off, and system is stopped It only works to avoid booster pump idle running and damages.

Further, first valve is check valve, single from third filter core to concentrate recirculation direction for controlling water flow To conducting, it can prevent water hammer from instantaneously adversely affecting caused by system；The third valve is check valve, for controlling water Stream drinks direction one-way conduction from the second filter core and third filter core to water purification；Second valve is check valve, for controlling water Stream is from flushing waste water regulating valve to concentrated water discharge direction one-way conduction.

The flushing waste water regulating valve is electric-liquid type proportioning valve.Electric-liquid type proportioning valve is a kind of electric signal company by input Flow, pressure and the control valve in direction continuous, that control hydraulic system pari passu, the flow and pressure of output can not be by negative The influence for carrying variation can simply implement long-range control compared with Normal hydraulic element, can control continuously, pari passu hydraulic The pressure and flow of system realize control to the position of executing agency, speed, strength, and rushing when can be reduced pressure alteration It hits.Meanwhile electric-liquid type proportioning valve antifouling property is strong, can preferably reduce pollution of the concentrated water to device.

The pressure pump is booster pump, and for increasing hydraulic pressure, promotion water flow passes through nanofiltration membrane and reverse osmosis membrane, meanwhile, root Running water pipe water pressure when factually adjusts the water pressure by double films.

Further, first filter core is made of fusion-jet type polypropylene fibre, granular activated carbon and sintered type active carbon. The first filter core being made of fusion-jet type polypropylene fibre, granular activated carbon and sintered type active carbon is mainly used for adsorbing in water and hang Floating object reduces colorimetry-turbidity, absorption chlorine residue, goes the content of dechlorination that can extend the use longevity of subsequent reverse osmosis membrane and nanofiltration membrane Life.

Further, the purifier further includes power supply adaptor.Power supply adaptor is used to household voltage switch to 24 Direct current supply is lied prostrate, this is safe voltage (being lower than 36V), makes device oncontacting risk.

Compared with prior art, the beneficial effect that the utility model generates is:

Using operating pressure at 0.5Mpa-0.8Mpa, water temperature at 20 DEG C -28 DEG C, water yield is 527 milliliters ultralow Reverse osmosis membrane and nanofiltration membrane are pressed, assembles cost apparatus after choosing respectively suitable salt rejection rate, water yield is up to 1.3- per minute 1.5 liters (the TDS height depending on local tap water is floated), and total salt rejection rate can be stablized in 85-90%, every point of the waste water of generation Clock only has 430-500 milliliters, and water purification and waste water ratio are 3:1, and minerals and microelement can retain original 10-15%.Relatively Conventional small purifier, the utility model water yield is big, water use efficiency is high, contains enough minerals and microelement, filters simultaneously Core apparent size is the same (reverse osmosis membrane and nanofiltration membrane are traditional 1812 or 2012 sizes), and water yield is significantly increased, but sets Standby outer rule overall dimensions do not increase, and more conducively city dweller family installs.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model purifier.

Specific embodiment

The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；In order to better illustrate this embodiment, attached Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art, The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of positional relationship is described in attached drawing Illustrate, should not be understood as the limitation to this patent.

Embodiment 1

It is as shown in Figure 1 a kind of embodiment of the water saving water purifier of double film filterings of the utility model, including pretreatment System, double membrane filtration systems, concentrated water processing system, outlet system and controlled for display system information and device and set There is the intelligent control display 16 of standard salt rejection rate.

Pretreatment system is by first pressure switch 1, the first TDS value collector 2, the first filter core 3, the electricity for controlling water inlet 4 sequential series of magnet valve composition.Pretreatment system is mainly used for acquiring the TDS value of tap water, and carries out primary filtration to water, main Suspended matter in water is adsorbed, colorimetry-turbidity is reduced, removes odors and adsorb chlorine residue.

Double membrane filtration systems are filtered by pressure pump 5, the pressure inductor 6 for measuring double film water pressures, the second filter core 8, third 9 sequential series of core composition, third filter core are connected to the concentrated water outlet of the second filter core, and pressure pump 5 is connected with solenoid valve 4.Double film mistakes Filter system is connected to after pretreatment system, and pressure pump 5 is connected in after solenoid valve 4.Second filter core 8 is nanofiltration membrane, third filter core 9 For reverse osmosis membrane, the substances such as Organic substance in water, pigment, dissolved salts, colloid, microorganism can be effectively removed, guarantee that water quality reaches It is the core of whole device to requirement.

Concentrated water processing system includes two parallel lines, is by flushing waste water proportioning valve 14,15 sequence of the second valve respectively Concatenated concentrated water discharge branch and by concentrate recirculation regulating valve 7, the concentrate recirculation branch of 10 sequential series of the first valve, the punching Wash waste water proportional valve 14, concentrate recirculation regulating valve 7 connects and exports in 9 concentrated water of third filter core, first valve 10 is connected to electricity Between magnet valve 4 and pressure pump 5.Concentrated water processing system is the pith for promoting water circulation use, on the one hand corresponding proportion Concentrated water discharge is gone out, and is on the other hand adjusted concentrated water circulating filtration, is effectively improved the utilization rate and water yield of water.

Outlet system is made of third valve 11, the 2nd TDS value collector 12,13 sequential series of second pressure switch, institute State third valve 11 connect the second filter core 8, third filter core 9 water purification outlet after.Outlet system is that the unique water purification of device goes out Mouthful, circulating filtration and adjusting by system, the water purification of bleeder contain enough minerals and microelement, guarantee water quality Reach requirement.

The raw water TDS value and the 2nd TDS value that intelligent control display 16 is acquired according to the first TDS value collector 2 acquire The water purification TDS value of the double film filterings of the process that device 12 acquires, the total salt rejection rate of real time computation system simultaneously compare, intelligence with standard salt rejection rate Regulation concentrate recirculation regulating valve 7 controls concentrated water and reenters double membrane filtration systems.Flushing waste water proportioning valve 14 is arranged in proportion simultaneously Put concentrated water, it is ensured that system maintains normal salt rejection rate, keeps guaranteeing to purify water containing a certain amount of minerals in water purification with this Amount.

Second filter core 8 is equipped with the nanofiltration membrane for being greater than 1nm substance for filter diameter, and third filter core 9 is equipped with straight for filtering Diameter is greater than the reverse osmosis membrane of 0.01nm substance, and nanofiltration membrane mainly removes Organic substance in water, pigment and high valence ion salt, protects simultaneously A part of minerals and microelement are stayed, reverse osmosis membrane is effectively removed dissolved salts in water, colloid, microorganism, organic Object etc. only allows hydrone and dissolved oxygen to penetrate.

The working pressure range of nanofiltration membrane and reverse osmosis membrane is 0.5Mpa-0.8Mpa, and work water temperature range is 20 DEG C -28 ℃.Under normal condition, when operating pressure 0.5Mpa-0.8Mpa, water temperature are 20 DEG C -28 DEG C, yield is 527 milliliters, Sufficient water yield can be provided.

The concentrated water displacement ratio setting of concentrate recirculation regulating valve 7 and flushing waste water proportioning valve 14 is 3:1, in order to guarantee water Matter is sufficiently filtered, and enough minerals and microelement are maintained, and system needs to keep certain concentrate recirculation amount, arranges simultaneously Put part concentrated water.In normal operating conditions, the displacement ratio of concentrate recirculation regulating valve 7 and flushing waste water proportioning valve 14 is set Displacement for 3:1, flushing waste water proportioning valve 14 changes with the adjusting of concentrate recirculation regulating valve 7.

Intelligent control display 16 and pretreatment system, double membrane filtration systems, concentrated water processing system, outlet system have electricity Connection.As the information centre of device, intelligent control display 16 is electrically connected by route with system, real-time display system Operating status (WiFi signal, flushing, water full, water, water shortage, maintenance and leak processed), filter element life (dividing Pyatyi), tap water TDS The information such as value and purified water TDS value.

It is 85%-90% that range, which is arranged, in standard salt rejection rate, using preceding preset standard salt rejection rate generally according to local tap water Depending on hardness and quality, it is 85%-90% that range, which is usually arranged,.

The work water pressure of first pressure switch 1 is 0.1 Mpa/m²More than.First pressure switch 1 is connected to original water inlet, When water inlet (tap water) cut off the water or hydraulic pressure be less than 0.1Mpa/m²When, switch is placed in off, system stalls to avoid Booster pump dallies and damages.

Wherein, the first valve 10 is check valve, for controlling water flow from third filter core reverse osmosis membrane 9 to concentrate recirculation direction One-way conduction, it is ensured that concentrated water unidirectionally flows back into 5 front end of pressure pump, and the hydraulic pressure at this check valve end is generally greater than pressure pump leading portion pressure Power.Third valve 11 is check valve, drinks direction to water purification from the second filter core 8 and third filter core 9 for controlling water flow and unidirectionally leads It is logical.Second valve 15 is check valve, for controlling water flow from flushing waste water proportioning valve 14 to concentrated water discharge direction one-way conduction, is prevented Only the pollutants such as exhaust gas, bacterium enter water purification system from concentrated water discharge mouth.

Flushing waste water proportioning valve 14 is electric-liquid type proportioning valve, and compared with Normal hydraulic element, which can be simply implemented far Process control can control the pressure and flow of hydraulic system continuously, pari passu, realize to the position of executing agency, speed, strength Control, and impact when can be reduced pressure alteration.Meanwhile electric-liquid type proportioning valve antifouling property is strong, can preferably reduce dense Pollution of the water to device.

Pressure pump 5 is booster pump, for reinforcing hydraulic pressure.

In addition, the first filter core 3 is made of fusion-jet type polypropylene fibre, granular activated carbon and sintered type active carbon, Ke Yiyou Effect ground adsorbs suspended matter in water, reduces colorimetry-turbidity, remove odors, adsorb chlorine residue, extends subsequent reverse osmosis membrane and nanofiltration membrane Service life.

Purifier further includes power supply adaptor, is used to household voltage is switched to 24 volts of direct current supplys, this is safety electricity Pressure (is lower than 36V), makes device oncontacting risk.

The specific work process of the present embodiment is as follows:

Device is powered on by power supply adaptor, when hydraulic pressure is greater than 0.1Mpa/m²When, first pressure switch 1 is opened, and is opened Second pressure switch 13 is opened, pressure pump 5 starts turning, and solenoid valve 4 is opened.Tap water initially enters device from water inlet, and first TDS value collector 2 can detect tap water, and tap water TDS value is then transferred to intelligent control display, provides calculating Parameter.

What water flow passed through first is the first filter core 3, by fusion-jet type polypropylene fibre, granular activated carbon and sintered type active carbon First filter core 3 of composition will pre-process tap water, adsorb that suspended matter and chlorine residue in water, to reduce colorimetry-turbidity, removal different Taste.

It completes pretreated water flow and enters double membrane filtration systems, after pressure pump 5 increases hydraulic pressure, water flow first passes through second Filter core nanofiltration membrane 8 removes water part organic matter, pigment and the biggish substance of other molecular weight, still contains in water purification out There are part minerals and microelement.Concentrated water part after nanofiltration membrane then continues through third filter core reverse osmosis membrane 9, By the filtration of reverse osmosis membrane, the substances such as Organic substance in water, dissolubility salt, colloid, microorganism are effectively further removed, Obtain highly filtered pure water.Double membrane filtration systems are the cores of entire purifier, are the important guarantees of water purification quality.Through The moisture for crossing double film filterings is water purification and concentrated water two parts, is flowed out from different water outlets.

Water purification part will enter outlet system, be flowed out, be drunk for drinking person, while the 2nd TDS value by third valve 11 Collector 12 can detect the TDS value of water purification, calculate total salt rejection rate for intelligent control display 16 and provide parameter.

Concentrated water part enters concentrated water processing system, and a part can emit under the adjusting of flushing waste water proportioning valve 14, separately It is a part of then pressure pump 5 can be flowed back by concentrate recirculation regulating valve 7, double membrane filtration systems are again introduced into, filtering is re-started It utilizes.Quantitative concentrated water, concentrate recirculation regulating valve and punching is discharged in flushing waste water proportioning valve 14 in proportion in system worked well The displacement ratio for washing waste water proportional valve is 3:1, ensures that purified water is up-to-standard with this, meanwhile, when flushing waste water proportioning valve 14 The flushing of film can be completed in standard-sized sheet, respectively rinses 5 seconds before rinsing 60 seconds such as booting, work and after work.

The data that intelligent control display 16 is shown have: (WiFi signal, flushing, water is full, water processed, lacks for system running state Water, maintenance and leak), filter element life (dividing Pyatyi), tap water TDS value and purified water TDS value, according to the tap water being collected into TDS value and water purification TDS value, system are counted according to the total salt rejection rate of system=(tap water TDS-purified water TDS) x 100% It calculates.And before use, needing to preset standard salt rejection rate, the salt rejection rate is depending on the local originally water hardness and quality, and one As be set as 85-90%, within this range system by corresponding proportion be discharged waste water, improve the utilization rate of water while guaranteeing in water purification Contain suitable minerals and microelement.

When system salt rejection rate is lower than the 10% of the standard salt rejection rate set, intelligent control display is by adjusting concentrated water Return valve 7 allows concentrate recirculation amount to increase, and with the increase of concentrate recirculation amount, the TDS value of purified water can be decreased, and two The operating pressure of branch film also reduces in succession, and system salt rejection rate will increase, until system salt rejection rate, which is gone back up to, is equal to or less than mark Within the 10% of quasi- salt rejection rate.

When system salt rejection rate is higher than the 10% of standard salt rejection rate, intelligent control display 16 adjusts concentrate recirculation regulating valve 7, allow concentrate recirculation amount to reduce, with the reduction of concentrate recirculation amount, the TDS value of purified water can be increased with it, the work of two films Pressure also increases in succession, and system salt rejection rate will reduce, until system salt rejection rate is compared with as low as equal to or less than 10% internal standard desalination Within rate, water purification quality is ensured with this, and keeps suitable minerals and microelement in water.

It being adjusted in real time by system, water not up to standard obtains circulating filtration, while impurities in water is rationally discharged, While guaranteeing to contain enough minerals and microelement in water purification, the utilization rate of water is improved to the maximum extent, reaches production water Big effect is measured, just solves that existing purifier water yield is low, water use efficiency is low and minerals, microelement are insufficient asks Topic.

Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and It is not the restriction to the utility model embodiment.For those of ordinary skill in the art, above explained On the basis of can also make other variations or changes in different ways.There is no need and unable to give thoroughly all embodiments It lifts.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc. should be included in this Within invention scope of protection of the claims.

Claims (9)

1. a kind of water saving water purifier of double film filterings, which is characterized in that the purifier includes pretreatment system, double films Filtration system, concentrated water processing system, outlet system, and controlled for display system information and device and be equipped with standard desalination The intelligent control display (16) of rate；

The pretreatment system by first pressure switch (1), the first TDS value collector (2), the first filter core (3), for control into Solenoid valve (4) sequential series of water form；

Double membrane filtration systems by pressure pump (5), the pressure inductor (6) for measuring double film water pressures, the second filter core (8), Third filter core (9) sequential series composition, the third filter core (9) are connected to the concentrated water outlet of the second filter core (8), the pressure pump (5) it is connected with the solenoid valve (4)；

The concentrated water processing system includes two parallel lines, is by flushing waste water proportioning valve (14), the second valve (15) respectively The concentrated water discharge branch of sequential series and by concentrate recirculation regulating valve (7), the concentrate recirculation branch of the first valve (10) sequential series Road, the flushing waste water proportioning valve (14), concentrate recirculation regulating valve (7) connect to be exported in third filter core (9) concentrated water, and described first Valve (10) is connected between solenoid valve (4) and pressure pump (5)；

The outlet system switchs (13) sequential series group by third valve (11), the 2nd TDS value collector (12), second pressure At the third valve (11) connects the water purification outlet in the second filter core (8), third filter core (9)；

The raw water TDS value and the 2nd TDS value that intelligent control display (16) is acquired according to the first TDS value collector (2) acquire The water purification TDS value of the double film filterings of the process of device (12) acquisition, the total salt rejection rate of real time computation system simultaneously compare, intelligence with standard salt rejection rate Concentrate recirculation regulating valve (7) control concentrated water can be regulated and controled and reenter double membrane filtration systems.

2. a kind of water saving water purifier of double film filterings according to claim 1, which is characterized in that second filter core (8) it is equipped with the nanofiltration membrane for being greater than 1nm substance for filter diameter, the third filter core (9) is equipped with to be greater than for filter diameter The reverse osmosis membrane of 0.01nm substance.

3. a kind of water saving water purifier of double films filtering according to claim 2, which is characterized in that the nanofiltration membrane and The working pressure range of the reverse osmosis membrane is 0.5Mpa-0.8Mpa, and work water temperature range is 20 DEG C -28 DEG C.

4. a kind of water saving water purifier of double film filterings according to claim 1, which is characterized in that the concentrate recirculation The concentrated water displacement ratio setting of regulating valve (7) and the flushing waste water proportioning valve is 3:1.

5. a kind of water saving water purifier of double film filterings according to claim 1, which is characterized in that the intelligent control Display (16) is electrically connected with pretreatment system, double membrane filtration systems, concentrated water processing system, outlet system.

6. a kind of water saving water purifier of double film filterings according to claim 1, which is characterized in that the intelligent control It is 85%-90% that standard salt rejection rate range, which is arranged, in display (16).

7. a kind of water saving water purifier of double film filterings according to claim 1, which is characterized in that the first pressure The work water pressure for switching (1) is 0.1 Mpa/m²More than.

8. a kind of water saving water purifier of double film filterings according to claim 1, which is characterized in that first valve (10) for for controlling water flow from third filter core (9) to the check valve of concentrate recirculation direction one-way conduction；The third valve (11) check valve to drink direction one-way conduction for controlling water flow from the second filter core (8) and third filter core (9) to water purification；Institute Stating the second valve (15) is for controlling water flow from flushing waste water proportioning valve (14) to the unidirectional of concentrated water discharge direction one-way conduction Valve, the flushing waste water proportioning valve (14) are electric-liquid type proportioning valve, and the pressure pump (5) is booster pump.

9. a kind of water saving water purifier of double film filterings according to claim 1, which is characterized in that further include that power supply is suitable Orchestration.