CN104045199A - Method for increasing efficiency of R/O membrane by using PTF instant heater - Google Patents
Method for increasing efficiency of R/O membrane by using PTF instant heater Download PDFInfo
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- 238000001223 reverse osmosis Methods 0.000 claims abstract description 4
- 229920000642 polymer Polymers 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 39
- 239000011347 resin Substances 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 20
- 238000013461 design Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 18
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
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- UBXAKNTVXQMEAG-UHFFFAOYSA-L strontium sulfate Chemical compound [Sr+2].[O-]S([O-])(=O)=O UBXAKNTVXQMEAG-UHFFFAOYSA-L 0.000 description 2
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- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a method for improving a technology of a purified water dispenser of a reverse osmosis membrane (R/O membrane) by using a PTF instant heater, and belongs to the small purified water preparation field, and the technical making fields of household electrical appliances and laboratory equipment products. The PTF (polymer thick film) instant heater is arranged in front of the R/O membrane in order to avoid the water output reduction due to the decrease of the temperature of the R/O membrane and realize the cleaning of the R/O membrane.
Description
Technical field
The present invention relates to use the technical improvement method of the small-sized pure water drinking machine that PTF instantaneously heating device is core filter material to For Miniature Ro Membrane (R/O film), belong to the manufacture field of miniature water purifier preparation field and household electrical appliance, laboratory purified water equipment series products.
Technical background
The kind of the small-sized water making machine of purifying waste water of use R/O film is very various at present, and by universal, is used widely.But along with the universal use of this series products, the technical problem existing in currently available products also highlights gradually.One of them important problem is exactly that the aquifer yield of R/O film, easy cleaning, degerming are stubborn problems in small-sized R/O film water purification machine.Especially some are dispersed throughout to the problems referred to above that the small-sized R/O film water purification machine of each family in use exists, have directly affected the trust of human consumer to R/O film.Here it is by the end of so far, do not use and provide R/O film water purifier for oneself widely, but use the reason that comes from the drummed pure water of concentrating water purification preparation station preparation in most of families of China.And adopt water treatment station by the country of some developed regions, to be familiar with to the drawback of each family's supply drummed pure water, current development trend is not only to negate progressively by drummed pure water, what be used more widely is in water-purifying machine system, there is no storage tank or the very little direct drinking water purifier of water tank volume, and end adds gentle Refrigeration Technique and is also widely used in these direct drinking water purifier products, can provide to human consumer is heatable hot water and the cold water (being commonly called as frozen water) that can freeze.
Yet the inventor finds after domestic small-sized R/O membrane water purifier existing and external report is generally investigated, the water yield processed of the not good R/O of the solution film of these small-sized R/O film water purifiers of listing declines and significantly reduces problem, scale removal, degerming problem with temperature at present, the changes in amplitude that wherein aquifer yield of R/O film is larger remains and to highlight in these small-sized R/O membrane water purifiers, this is directly impact small-sized client, the especially family trust of small-sized client to R/O film water dispenser that be unit.
Summary of the invention
Talk about publicly knownly, for the water yield processed that adopts the small-sized water purifying appliance that R/O film is core devices, all take envrionment temperature and be as the criterion and represent as 25 ℃.For professional, all know that the variation of temperature directly affects R/O film aquifer yield, and influence coefficient is very large.The inventor once selected the conventional home-use R/O film in a market, and model is: HY1812-50, belong to polyamide composite film, and the aquifer yield of measuring under 25 ℃ of conditions that this product represents is 50m
3/ d, the aquifer yield providing according to Gai Mo manufacturer and the relation of temperature, the inventor briefly tabulate show as follows:
Table 1:R/O film temperature and actual aquifer yield relation (labelled amount is the % with respect to the aquifer yield of measuring under 25 ℃ of conditions)
| Temperature | Temperature factor | Aquifer yield m 3/d | Relative labelled amount % | Temperature | Temperature factor | Aquifer yield m 3/d | Relative labelled amount % |
| 5℃ | 2.16 | 23.1 | 46.3％ | 10℃ | 1.77 | 28.3 | 56.5％ |
| 15℃ | 1.46 | 34.3 | 68.6％ | 20℃ | 1.21 | 41.49 | 83.0％ |
| 25℃ | 1 | 50 | 100％ | 30℃ | 0.88 | 57.0 | 114.0％ |
| 35℃ | 0.77 | 64.9 | 129.7％ | 40℃ | 0.68 | 73.4 | 146.8％ |
From table 1, when inflow temperature is during at 15 ℃, the aquifer yield of R/O film is only for expressing 83% of the water yield, and warm during 5 ℃ and 10 ℃ when water inlet, aquifer yield is only equivalent to 46.3% and 56.5% of labelled amount.If this aquifer yield for the client who does not possess the basic general knowledge of R/O film, obviously cannot be accepted aquifer yield only for expressing half real result of the water yield.And for the most areas of China, in 1 year, there is at least water temperature that half time water supply pipe is transported to client's tap water port not 25 ℃ of left and right, but usually lower than this temperature, following in the majority with 15 ℃, at some, there is no the house of heating installation, it is more general that inflow temperature maintains the phenomenon of 5 ℃-10 ℃.
The problem that another one highlights is after R/O film is used for some time, no matter the design of the prefiltration post of leading portion is how good, capital produces pollution at the water entering surface of R/O film, and these pollutents mainly contain metal oxide, silicon-dioxide, colloid sediment (inorganic or inorganic/organic mixture), nature or synthesis of organic substance, the biomass (biological sludge, mould or fungi) etc. of calcium carbonate scale, calcium sulfate, barium sulfate, strontium sulfate scale, iron, manganese, aluminium etc.When these pollutents are present in the feed-water end of R/O film, also the aquifer yield of R/O film will significantly be reduced.
Carefully analyze, these pollutents can be divided into two large classes, and a class is the inorganic salt of insoluble, and another kind of is colloid group.
The 3rd problem highlighting is microbiological contamination problem.Because the water inlet of R/O film is generally that city tap-water supplies water, along with the growth of duration of service, microbial contamination also can be gathered in the influent side of R/O film, forms above-mentioned micelle pollutent.
R/O membrane water purifier manufacturer has provided a lot of cleaning methods at present, and conventional is the method that adopts special-purpose medicaments washing.Some film manufacturers and water dispenser manufacturer can both provide some special-purpose medicines to client, but because the client of small-sized R/O film water dispenser disperses very much, the after sale service of China is difficult to follow-up, even if so there is good existing method, is also difficult to universal enforcement or generally accepted by human consumer and correct application.This situation is in some developed countries, the selling price that the method ShiR/O membrane water purifier producer that employing solves provides is higher, manufacturer has the ability to provide the free after sale service of visiting under the support of high price, when R/O film water dispenser uses to a certain degree, manufacturer can also reclaim, user is part payment purchase commodity again, and manufacturer will provide a new R/O membrane water purifier new or upgrading to client.This service mode is to be based upon the acceptance that the sound country of social prestige system height could obtain human consumer.The quality of China's water-purifying machine product is stable not at present, business reputation is also in stage of gradual perfection, the general phychology of client be outward appearance and to interior technology do not know much have less understanding quarter, doubly think in the middle of basically identical product, go to pursue and the more cheap water-purifying machine product of price, so the sales mode of this water-purifying machine of developed country is difficult to reference to imitateing in China society instantly.
PTF is the abbreviation of polymer thick film, adopts at present the moment solvent heater that PTF makes to be commonly used.The sharpest edges of PTF instantaneously heating device are that volume is little and heating efficiency is high.
At present PTF instantaneously heating device has extensively been sent out is applied to R/O membrane water purifier; yet very regrettably the use of PTF instantaneously heating device on R/O water-purifying machine is to be used to the pure water through R/O membrane reverse osmosis being heated for quoting of stream R/O film below, and do not consider and use PTF instantaneously heating device to go increase the water efficiency processed of R/O film and R/O film carried out to the cleaning of protectiveness.
In the stream of the R/O membrane water purifier of Fig. 1 design, two PTF instantaneously heating devices have been adopted; the effect of the PTF instantaneously heating device of wherein installing in R/O film leading portion stream is not to serve human consumer tap water is heated, but plays a part increase the water outlet efficiency of R/O film and R/O is carried out to cleaning protection.
In Fig. 1, Fig. 1-1st, the water inlet port of water-purifying machine, Fig. 1-2 is the manually-operated gate into water port, the magnetic valve of water port is entered in Fig. 1-3rd; Fig. 1-4th, the roughing efficiency air filter before water-purifying machine R/O, this stage design the assembly of three roughing efficiency air filters, different filter material from coarse to fine and the filter membrane in aperture can be installed in inside, the filter material of roughing efficiency air filter and the design in aperture can design according to the water quality of different feed source with to the water purification requirement of water-purifying machine and the composite requests such as performance and the factor of selected R/O film, the common-sense technical problem that this belongs in this area repeats no more herein.Fig. 1-5th, booster water pump, for the pressure that send water is provided to R/O film, topping-up pump can be selected according to aquifer yield the topping-up pump of different flow; Fig. 1-6th, first PTF instantaneously heating device, for the temperature to the water extraction premium on currency through initial filter after topping-up pump; Fig. 1-7 are two R/O films that use in parallel, and the object of using in parallel is to improve aquifer yield.According to the difference that the rate that desalts requires and R/O film is selected, the use of can connecting of these two R/O films, formation two steps ro desalination.Fig. 1-8th, activated charcoal filter, in common water-purifying machine for improving the mouthfeel of the water after purification.Fig. 1-9th, carries the concentrated stream road of the dense water end (W.E.) of R/O film, and be introduced into use semiconductor cooler manufacture moment refrigerator heat radiation stream after drain again to water-purifying machine; Fig. 1-10th, the moment refrigerator that uses semiconductor cooler to manufacture, this, refrigerator was to be used in first in small-sized water purifying appliance moment, its refrigeration has under the flow velocity of 1-60L/min, the inflow temperature of the water of flowing through is dropped to the ability of 5 ℃-20 ℃ (or △ t >=15 ℃) in water side.Fig. 1-11 are second PTF instantaneously heating devices, and the consumption temperature needing for the temperature of purifying waste water being brought up to drinking person, can select arbitrarily between former temperature to water outlet at 98 ℃.Fig. 1-12nd, does not only pass through the water outlet of R/O membrane ultrafiltration, to meet the demand of the non-purified water of human consumer's needs by initial filter.Fig. 1-13rd, the hot water mouth who purifies waste water outlet, Fig. 1-14th, the escape orifice of R/O film concentrated water spout.Here it should be noted that and adopt the moment refrigerator of semiconductor cooler manufacture to need the water of certain flow rate to carry out cold and hot exchange, that is to say when moment, refrigerator was worked, its back side can produce the heat of identical energy, needs the heat that water that temperature is lower produces it to drain away.The design has utilized the dense water of the R/O film that temperature is lower to be introduced into the backside heat stream of moment refrigerator, and the dense water by the low temperature of flowing through by moment the heat that produces when the refrigeration of refrigerator drain away.Fig. 1-15th, the pure water cooling water outlet of water-purifying machine.Fig. 1-16th, the bucket water receiving outlet of pure water.If be 50m because the design's water-making ability is selected water-making ability
3the R/O film of/d, can meet the primary demand of the daily tap water of 50 people or the 5 even more average families in family, family to 20, for example, if select the R/O film of larger water-making ability, 5000m
3the R/O film of/d, has larger water-making ability, and disperses by the barreled water saving mouthful of Fig. 1-16, to supply more demand.In this, design is for Rural areas underdeveloped, can water-purifying machine of the present invention of other cooperative purchasing of many families, port by its 1-16 connects bucket (or Fig. 5-16,19, Fig. 7-16,19) dress water purification and is distributed to each family and uses, and formed thus a miniature supply station of purifying waste water.Such benefit is the tap water problem that can effectively solve poverty-stricken area, reduces human consumer's economical load.Same reason, for little miniature enterprises and institutions, the pure water that also can be prepared by this equipment by the Supply Method of barreled purified water is distributed to each and for the human consumer of chummery not, does not drink on the hot water machine of chummery.It should be noted that again, the water inlet port that (comprises Fig. 2-1, Fig. 3-1, Fig. 4-1, Fig. 5-1, Fig. 6-1, Fig. 7-1, Fig. 8-1) in Fig. 1-1 can install a small-sized lift pump additional, this is for the occasion that there is no tap water supply, can be by the lift pump pretended herein to water-purifying machine system supply of the present invention water source.Last point it should be noted that Controlling System of the present invention is to adopt micro-chip to carry out intellectuality to control.
Distinguishing feature in above-mentioned water-purifying machine stream had increased PTF instantaneously heating device exactly before R/O film, its objective is as required the water temperature that enters R/O is promoted, and this effect has following benefit:
First can guarantee that R/O film has good aquifer yield after water temperature promotes, and especially, when the occasion of water temperature lower than 20 ℃, promoting water temperature is to guarantee the most simple and efficient method of R/O film aquifer yield.
Second advantage is for some, to be deposited on the insoluble inorganic salt dirt in R/O after promoting water temperature, and high water temperature will be conducive to dissolve and loosening these inorganic salt, and impel it from dense water end (W.E.) mouth, to excrete out.
The 3rd advantage is that the colloid dirt being deposited on for some after promoting water temperature in R/O film plays good dissolving and loosening effect, and impels it from dense water end (W.E.) mouth, to excrete out.
The 4th advantage is that especially water temperature reaches more than 55 ℃, will be unfavorable for very much the breeding of bacterium and mould after promoting water temp, and high water temperature will impel it from dense water end (W.E.) mouth, to excrete out.If higher temperature, will more be conducive to the lifting of bacteria-eliminating efficacy certainly.
Select suitable voltage control can make PTF instantaneously heating device effectively water temperature figure is herein raised to the critical temperature of boiling, and produce water vapor phenomenon, and increasing under the effect of the new water source power of the continuous conveying of liquid water pump, stream rearwards provides the high-temperature water steam flow that water and steam gas mixes thus, and this state will have more effective effect to the dirt of removing on R/O film.
In service in reality at water purifier of the present invention so, how to grasp the temperature of the device of PTF instantaneously heating herein? the instruction of the workbook of general R/O is that the use temperature of R/O film is all expressed as below 50 ℃, however inventor's simple data below acquisition after related data is inquired about:
Table 2: the related data of the maximum operation (service) temperature of some R/O mould materials
Although the data in upper table can not letter be covered the thermostability situation of whole R/O, but an information of still giving contriver from showing is exactly R/O works when the temperature of 50 ℃ is any problem that do not exist, at short notice, paper mould material possesses itself better high thermal resistance, and temperature can reach 100 ℃ above without any problem!
There is self-designed a set of R/O film pure water system in the laboratory of inventor's work, four R/O films that the R/OWei Mou producer model of using is HY1812-50, two strings two also connect use, in order to solve the water yield processed in the season that temperature is low, the inventor's researchist has increased small-sized Haier's hot water bag at the water intake end of system, in water temperature lower (15 ℃ of left and right), water inlet is heated, and the interim top temperature that inflow temperature is risen to hot water bag (being about 75 ℃-85 ℃), the temperature that first water inlet at this temperature arrives R/O after 3 grades of initial filtrator coolings is 50 ℃ of-60 ℃ of left and right, we are water processed at this temperature, use for many years continuously, it is good that R/O still maintains, and effluent quality does not significantly decrease.We are also once in temperature high summer, and the temperature increase of hot water bag, to the highest (temperature that arrives R/O film is about 70 ℃-80 ℃), and is maintained to 30min left and right for removing the dirt of R/O.The method of this scale removal of heating is fine in our result of use in laboratory, has increased greatly the work-ing life of HY1812-50.
By the temperature analysis to above mould material and the inventor's application practice, the inventor draws 2 conclusions: first is to be feasible no matter the R/O film of what material water processed between 45 ℃-50 ℃ is used.Second point is to be also feasible no matter the R/O film of what material bears at 10min-30min the temperature that is greater than 60 ℃ of left and right under the section time like this, even within the shorter time, 10im is also feasible with interior temperature of bearing 100 ℃, because the fail temperature of the material of all maskings is all higher than 110 ℃ in table two.
Above-mentioned two conclusions are very important, because in the present invention, contriver can use the PTF instantaneously heating device being placed in before R/O film and in conjunction with the present invention, the intelligent control system of system be implemented to energy below:
(1) by the temperature increase to 45 of PTF instantaneously heating device ℃-60 ℃, the hot water temperature who R/O film is less than to the 30min time period cleans, or by the vaporization temperature of the temperature increase to 100 of PTF instantaneously heating device ℃, and under the promotion of booster water pump, the high-temperature evaporation water of R/O film being implemented to the following time period of 10min rinses.Because these two functions can be in the execution of intelligentized Controlling System Program, such as interval repeatedly carry out, time that at night need not water processed carries out etc.Adopt in this way and can carry out respond well cleaning to the dirt of R/O film and microbiological contamination, and significantly reduce conventional liquid medicine, clean, even do not use.The inventor adopts in the R/O film water manufacturing system of similar approach in the inventor's laboratory, has substantially abandoned for many years the matting of liquid medicine, and the R/O film using still has good water-based energy processed, and water quality meets the requirements.
(2) in water temperature, lower than 18 ℃ or 15 ℃ (selecting different temperature according to energy-conservation requirement and water producing cost analysis), use PTF instantaneously heating device, before R/O film, cold water is promoted to temperature, for example rise to 25 ℃ or higher temperature (according to energy-conservation requirement and water producing cost analysis, selecting different but still suggestion lower than 45 ℃), guarantee the water yield processed of R/O film.This method also can be in the execution of intelligentized Controlling System Program, in even also can the flowpath segment before PTF instantaneously heating device, increase detects inflow temperature to the temperature sensor of water temperature, and set with this temperature of heating, by intelligentized Controlling System, according to setting, selected to automatically perform.
Based on above-mentioned statement, the water-purifying machine of the present invention design is when selecting R/O film, and the R/O film of the good heat resistances such as polyimide that should first-selected great thermotolerance, polysulfones, is used cellulose acetate class R/O film but do not get rid of.Although because the heatproof condition of cellulose acetate class R/O film is slightly lower, its temperature tolerance is substantially can meet to adopt in method of the present invention rinsing between the high temperature, short time of R/O film.
Intelligent control system of the present invention has been selected the single-chip computer control system that Kinetis E02 series 32 bit CPU microprocessor chips are core.The function of Kinetis E02 series 32 bit CPUs is very powerful.Therefore under the control of 32 chips of Kinetis E02 series; before R/O, using PTF instantaneously heating device to carry out regular heat protection to R/O film cleans and the operation of hot state; can effectively solve water yield Yin Wendu processed in current small-sized R/O water purifier declines and the problem of decline and dirt pollution; if control the suitable of Temperature Setting; under the control of 32 chips of Kinetis E02 series; the long-term good operation of water-purifying machine of the present invention can be effectively guaranteed, and the work-ing life of R/O film can be significantly promoted.So water-purifying machine of the present invention adopts intelligentized electrical equipment control, its object is exactly to wish to have heated wash and the water function processed of intellectuality, sequencing.If increase photoelectricity turbidity detecting sensor after initial filter post, after R/O film, increase resistivity or conductivity sensor, just can realize the function that online primary filter and R/O film are changed prompting.At water receiving port, increase magnetic valve, and place water receiving container, just can realize unmanned water function processed.Etc., under these intelligentized state of a controls, can provide more harmonious people/machine cooperation function.
Certainly, the intellectuality of water-purifying machine system of the present invention is controlled and also can be selected 8 or 16 and even 64-bit microprocessor chip, also can select logic programming controller (PLC) assembly to carry out the control of functionalization, these change the ABC category that all belongs to professional skill field.Water-purifying machine system of the present invention can also increase some interesting functions easily having on the intelligent basis of controlling, such as playing music, give the correct time, warning etc., to strengthen its amusement and other practicality.Because as class household electrical appliance, human consumer's favor will be more subject to after giving these subsidiary functions.
In the water-purifying machine system of R/O film, only see large-scale water manufacturing system has the phenomenon of heating component in the leading portion stream of R/O, and the phenomenon of heating component is installed do not see the stream before R/O film in the water-purifying machine of small-sized, especially home-use small-sized R/O film in.Here said small-sized R/O film refers to that the water yield processed is at 5000m
3the water-purifying machine water manufacturing system of the R/O film below/d, also comprise can whole (or a whole set of) transportation R/O film water manufacturing system.Because PTF instantaneously heating device is the energy-conservation rapid heating assembly just rising in recent years, so the phenomenon of PTF instantaneously heating device is installed more do not see the stream before R/O film in small-sized R/O membrane water purifier in, use this easy technological method, can solve in the small-sized water purification preparation of the small-sized R/O film of any type R/O film because water temperature and fouling cause the drawback that R/O film aquifer yield declines and shorten work-ing life, so the talent of the present invention is as the application of core technology method proposition this patent.
In the water-purifying machine system of the use R/O film of explaining in the present invention, before R/O film, designed the roughing efficiency air filter of three grades of connecting, these primarily efficient filters can be according to water quality and the requirement to water purifier detergent power of water inlet, and according to this kind that requires the R/O of selected use, the filter core of the initial filter of these three grades of series connection (filter material) is selected, this all belongs to the common-sense technical problem in specialty, the inventor just repeats no more, but what need suggestion is to select zwitterion mixed bed tree strainer in third stage initial filter, or select respectively the moon in the second stage and third stage initial filter, cationic resin column strainer.The object of this suggestion is to design like this initial filter can remove most metal ion in former water, not only can alleviate the burden of R/O film below, also plays the fouling that prevention PTF instantaneously heating device inner bag produces inorganic salts.
Fig. 2 and Fig. 3 have shown in the small-sized water manufacturing system of R/O film, other two kinds of small-sized R/O film waterworkss of carrying out the change of filter membrane filter material below at PTF instantaneously heating device, this waterworks can be applied in laboratory as test water, and also can ensure the daily drinking-water of lab assistant simultaneously.
In Fig. 2, different in place below and Fig. 1, the implication of remaining icon is all identical with the implication in Fig. 1.The icon not existing together is described below:
Fig. 2-8th, zwitterion mixed bed filter.The system difference of the system of Fig. 2 and Fig. 1 is in the system of Fig. 2, and two R/0 films are used and being changed over series connection and use by parallel connection, form two-stage R/O membrane reverse osmosis system.Between two-stage R/O system, increased one-level zwitterion mixed bed column, its effect is after first step R/O film is pure by water, use zwitterion mixed bed column further to remove to send into again second stage R/O film after micro-metal ion and carry out micro-filtration, and by resistivity (or specific conductivity) electrode detection sensor (Fig. 2-18), carry out On-Line Dynamic Monitoring and go out resistivity of water (or specific conductivity), further to improve the resistance (reduction specific conductivity) of pure water, obtain the high-resistance ultrapure water of use for laboratory.Zwitterion mixed bed Filter column is installed in before R/O film in a lot of systems, and a lot of occasion is to become respectively post to use resin anion(R.A) and resin cation (R.C.).The reason that generally adopts this using method is that the price of R/O film is in early days very expensive, and the price of resin is relatively cheap, and the effect of using resin column to remove zwitterion before R/O film is the load that reduces R/O film, protection R/O film.And R/O film is universal now, price has had very greatly different decline, and the price of zwitterion resin column substantially maintains and changes not quite.For the higher zwitterion hybrid resin column of efficiency, its price is relatively costly, and does not use high performance hybrid resin post to be just difficult to obtain the high resistivity (10 of laboratory needs
16Ω) water.So after the present invention has been placed on first step R/O film by high performance mixed bed resin post, and accept the pure water of the high resistivity after hybrid resin bed at this opening (Fig. 2-16).In order to get rid of the potential trace organic substance of mixed with resin bed, after secondary R/O film post is placed on to hybrid resin column, can hold back the potential micro-content organism impurity that may occur, thereby obtain more highly purified laboratory water.After secondary R/O film, still install the cold or hot high-purity water that moment refrigerator (Fig. 2-10) and moment heat-producing machine (Fig. 2-11) provide experiment and drink for laboratory additional.In the flow path designs of Fig. 2, do not design activated carbon column, be not that native system does not need activated carbon column, be actually and can add as required activated carbon column, the position of interpolation can the stream after the instantaneous heater of Fig. 2-6 in Anywhere.
In the system design of Fig. 2, be not both significantly on the other hand and increasing water turbidity photoelectric testing sensor (Fig. 2-17) and high-purity water resistivity (or specific conductivity) electrode detection sensor (Fig. 2-18) with Fig. 1 designed system, be respectively used to judge the replacing time of primary filter assembly and the quality of high purity water.
In Fig. 3, the implication of all icons is all identical with the implication of Fig. 2, goes to live in the household of one's in-laws on getting married as space is limited, just there is no need introducing one by one herein, can be just very clear for the sign of Fig. 1 and Fig. 2.What need statement is in the system of Fig. 3, the integral position of cooling assembly and second instantaneously heating device to be moved forward after first step R/O film, and the reason so changing is exactly to strengthen the function of lab assistant drinking-water.Because generally, common drinking water just can reach the purification purity of tap water requirement after by coarse filtration again by one-level R/O membrane ultrafiltration.In Fig. 3, not only there is the water inlet of Fig. 3-16, also after the R/O of the second stage, increased a water inlet (Fig. 3-23) that connects higher more pure water, for meeting the requirements at the higher level of laboratory to water quality.
Fig. 4 has increased the cation and anion exchange post recycle system on the basis of Fig. 3.Because in practice, zwitterion mixed bed column column efficiency after using certain hour can decline, the deionization ability of zwitterion mixed bed resin post can decrease, cause the resistivity of water can be in underproof criticality, and now mixed bed resin post does not damage, do not need to upgrade immediately yet.Solution is that the process mixed bed resin post of high purity water iterative cycles is carried out repeatedly to deionization exchange, and after repeatedly deionization exchanges, resistivity of water will raise, and reaches requirement like this.
Work reason to mixed bed resin post part in Fig. 4 is expressed as follows:
Water cleaning systems is undesirable if there is the resistivity of locating at high resistivity water inlet (Fig. 4-23), and the circulation water program processed that the intelligent control system of this water-purifying machine starts mixed bed resin post by the parameter presetting further improves resistivity of water.After entering this program, first program will be opened electronic venting valve (Fig. 4-31) to water tank (Fig. 4-29) inner filling water, closes electronic purging valve (Fig. 4-31) after being full of water.Then stop first topping-up pump (Fig. 4-5) work, start second topping-up pump (Fig. 4-28), now magnetic valve (Fig. 4-24, Fig. 4-25, Fig. 4-26) cuts out, magnetic valve (Fig. 4-27, Fig. 4-30) is opened, water in water tank (Fig. 4-29) circulates at water tank (Fig. 4-29), topping-up pump (Fig. 4-28), mixed bed resin post (Fig. 4-8) and second stage R/O film (Fig. 4-7), and carries out on-line monitoring by resistivity (or specific conductivity) electrode detection sensor (Fig. 4-18).Resistivity of water in water tank reaches requirement and (is generally 10
16in the time of Ω), the intellectualizing system alarm of equipment.If now need water receiving, open electronic venting valve (Fig. 4-30) and magnetic valve (Fig. 4-24), shut electromagnetic valve (Fig. 4-30), by topping-up pump (Fig. 4-28), the high-purity water in storage tank (Fig. 4-29) is squeezed via valve (Fig. 4-23) and flowed out.
When above-mentioned cycle operation, system is closed magnetic valve (Fig. 4-25), actual effect is that the concentrated water spout of second stage R/O film is closed, and so just forces the water that two stage supercharging pump (Fig. 4-28) pumps all by the water purification mouth of second stage R/O film (Fig. 4-7), to flow out.The object of doing is like this because the water in storage tank is through the high-purity water of two-stage R/O film preparation, the impurity of these water is extremely micro-metal ions, if so dense water end (W.E.) mouth of open second stage R/O, having part water drains through concentrated water spout, this is very unfortunate, therefore magnetic valve has been installed herein and to ensure the high-purity water in storage tank, has been unlikely to loss.In practice, moment that can discontinuity opens this magnetic valve (Fig. 4-25) and abandons on a small quantity a part of high purity water, is useful like this to the protection of second stage R/O film.
Fig. 5 has represented the outside view of the wall-hanging water-purifying machine manufactured under Fig. 1, Fig. 2, Fig. 3 water principle processed.
Fig. 6 is a kind of state of arranging of the intraware of Fig. 1,2,3 designs, this state of arranging not is unique, because may the internal state of setting up is optimized and be arranged in actual assembling, but principle of work not be left technical characterictic core of the present invention.
Fig. 7 has represented the outside view of the desk-top water-purifying machine manufactured under Fig. 1, Fig. 2, Fig. 3 water principle processed.The initial filter of desktop computer has been selected the more initial filter post of ting model, to dwindle the overall volume of desktop computer.Initial filter column system is placed on to casing behind behind, to increase the thickness of body, is convenient to vertical steady.And the thickness of the wall hanging machine showing with respect to Fig. 5 only has 20cm left and right, thinner, and the thickness of the desktop computer that Fig. 7 shows is at least the more than 2 times of wall hanging machine thickness.As space is limited, this Figure of description has only been shown the anterior elevational view of desktop computer.
Fig. 8 has represented the outside view of the vertical water-purifying machine manufactured under Fig. 1, Fig. 2, Fig. 3, Fig. 4 water principle processed.Water tank in Fig. 4 can be seated the bottom of vertical machine easily.Equally as space is limited, this Figure of description has only been shown the anterior elevational view of vertical machine.
Sequence number 20 in Fig. 5,6,7,8 is total power switch, the 21st of water dispenser, is the colored touch screen, the 22nd of Intelligent control system for water dispenser, represents the trade mark of a kind of water dispenser that the inventor is related, the 32nd, and the power supply of native system and circuit part.Other the sequence number in the present invention content of representative is consistent, all has in this manual detailed explanation, as space is limited, just repeats no more.
Fig. 5, Fig. 7, Fig. 8 are used in the small-sized R/O water making machine that the present invention designs the outward appearance of three equipment wherein, but this is not unique design outward appearance, because may be optimized design to the profile of equipment according to feedback suggestion in actual production process, have more multi-form fine appearance design, but its inner principle of work is not left technical characterictic core of the present invention.
Accompanying drawing explanation
Accompanying drawing one of the present invention has 8 width, and the description of the drawings is in conjunction with statement of the present invention, and sake of clarity in summary of the invention for saving space, just repeats no more herein.
Embodiment
The present invention has been described in detail in detail above, and has had concrete case study on implementation to show at accompanying drawing 1-8, just repeated no more herein.But the change of the essence that do not possess skills on the basis of these inventions, or those skilled in the art can do many improvement and variation after knowing the present invention, all can not deviate from the present invention's spirit scope.
Claims (8)
1. use polymer thick film (PTF) instantaneously heating device assembly to increase a kind of method of reverse osmosis (R/O) membrane efficiency, it is characterized in that position that PTF instantaneously heating device assembly installs in the flow path system of water-purifying machine is after booster water pump, before R/O film
And the moment liquid refrigerator assembly and PTF instantaneously heating device assembly that uses that semiconductor cooler manufactures is installed at the outlet water at tail end mouth place of system,
R/O film selects the water-making ability of single membrane module at 5000m
3the R/O film of any water yield processed below/d, and first-selected polyimide, polysulfones and the cellulose acetate class R/O film that is material,
Before first step topping-up pump, have more than 1 grade initial filter post, and the filter material of initial filter post can be arbitrarily,
The controller that whole system is comprised of micro-chip carries out intellectuality and controls.
2. according to claim 1, the PTF instantaneously heating device assembly in system has the ability of the water temp. heating to 100 ℃ of the water that booster water pump is carried, and the intellectuality that can depend on micro-chip is controlled and selected R/O film in water-purifying machine to clean needed Heating temperature.
3. according to claim 1, being positioned at PTF instantaneously heating device assembly R/O film below can be 1 above series and parallel combination, and can combine arbitrarily with the filter material post of other type.
4. according to claim 3, the first-selected gac class of the filter material post of other type filter material post, yin, yang, mixed bed resin post.
5. according to claim 1, in stream, can have more than 1 topping-up pump, and the intellectuality that can depend on micro-chip is controlled and to be carried out while or isolated operation.
6. according to claim 1, the initial filter post before first step topping-up pump can be the arbitrary combination of many, and the selection of filter material can be arbitrarily, and wherein the initial filter post after the second stage can be yin, yang, mixed bed resin filter material post.
7. according to claim 1, the microcontroller that micro-chip forms can be 8, 16, 32, 64-bit microprocessor chip and PLC controller assemblies, first-selected Kinetis E02 series 32 bit CPU microprocessor chips, and in the design of sequence of control, must there is the PTF instantaneously heating device assembly before pair R/O film carry out the control of differing temps and heat time control function, wherein first-selected control temperature is 45 ℃-60 ℃, and the hot water temperature that can be less than the 30min time period to R/O film in this temperature range cleans, with by the vaporization temperature of the temperature increase to 100 of PTF instantaneously heating device ℃, and under the promotion of booster water pump, R/O film is implemented repeatedly, the program control function at every turn rinsing in the high-temperature evaporation water temperature of following time period of 10min.
8. according to claim 1, in system, there is water turbidity and resistivity or specific conductivity detecting sensor for the inspection of flow path water quality and remind and filter the function that post is changed.
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| CN104045199B (en) | 2016-03-30 |
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Effective date of registration: 20180102 Address after: 450044 No. 5 Evergreen Road, comprehensive investment zone, Henan, Zhengzhou Patentee after: Henan Kangli Medicine Technology Development Co Ltd Address before: No. 8, building No. 5, hospital No. 149, Huayuan Road, Jinshui District, Zhengzhou, Henan Patentee before: Lu Tongxin |