CN109276938A - Water purifier and method for judging service life of RO (reverse osmosis) membrane filter element of water purifier - Google Patents
Water purifier and method for judging service life of RO (reverse osmosis) membrane filter element of water purifier Download PDFInfo
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- CN109276938A CN109276938A CN201710592507.4A CN201710592507A CN109276938A CN 109276938 A CN109276938 A CN 109276938A CN 201710592507 A CN201710592507 A CN 201710592507A CN 109276938 A CN109276938 A CN 109276938A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 345
- 239000012528 membrane Substances 0.000 title claims abstract description 130
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000001223 reverse osmosis Methods 0.000 title 2
- 238000000746 purification Methods 0.000 claims abstract description 79
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 30
- 239000004743 Polypropylene Substances 0.000 claims description 22
- -1 polypropylene Polymers 0.000 claims description 22
- 229920001155 polypropylene Polymers 0.000 claims description 22
- 239000003657 drainage water Substances 0.000 claims description 20
- 229910052799 carbon Inorganic materials 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 14
- 230000001186 cumulative effect Effects 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 4
- 238000011897 real-time detection Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000011045 prefiltration Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 241000009298 Trigla lyra Species 0.000 description 10
- 238000012545 processing Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 239000003651 drinking water Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
- B01D35/1435—Filter condition indicators with alarm means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
- B01D37/041—Controlling the filtration by clearness or turbidity measuring
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/001—Upstream control, i.e. monitoring for predictive control
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/003—Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/44—Time
- C02F2209/445—Filter life
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/10—Location of water treatment or water treatment device as part of a potable water dispenser, e.g. for use in homes or offices
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本发明公开了一种净水机及其RO膜滤芯寿命的判断方法，所述方法包括对RO膜过滤器的进水水质和出水水质分别进行检测，并将检测值与预设值相比较，以得出RO膜过滤器的OR膜滤芯寿命信息。所述净水机包括自净水机的进水口经管路依次串连连接的前置过滤器组、RO膜过滤器和后置过滤器组；前置过滤器组的净水出口经第二净水出水管路、后置过滤器组的净水出水口经第一净水出水管路与净水机的净水出口分别可通断的相连通，前置过滤器组出水口下游和RO膜过滤器净水出水口下游分别对应设有TDS水质检测器。通过检测RO膜过滤器进水和出水水流的TDS水质来判断RO膜滤芯的寿命情况，可以快速准确的判断出RO膜寿命是否到期，更加有利于用户使用，提高了用户体验。
The invention discloses a water purifier and a method for judging the service life of an RO membrane filter element. The method includes detecting the water quality of the RO membrane filter and the water quality of the effluent respectively, and comparing the detected value with a preset value, In order to obtain the life information of the OR membrane filter element of the RO membrane filter. The water purifier includes a pre-filter group, an RO membrane filter and a post-filter group that are connected in series from the water inlet of the water purifier through a pipeline; The water outlet pipeline and the water purification outlet of the post filter group can be connected on and off respectively with the water purification outlet of the water purifier through the first water purification outlet pipeline, and the downstream of the water outlet of the prefilter group is connected to the RO membrane. There are corresponding TDS water quality detectors downstream of the filter water outlet. By detecting the TDS water quality of the RO membrane filter inflow and outflow water to judge the life of the RO membrane filter element, it is possible to quickly and accurately determine whether the RO membrane life has expired, which is more beneficial to the user and improves the user experience.
Description
Technical field
The invention belongs to water purifier equipment technical fields, specifically, being related to a kind of water purifier and its RO membrane filter service life
Judgment method.
Background technique
It is well known that filter core employed in water purifier has certain service life, when the upper limit for reaching service life
Afterwards, filter core cannot then carry out purification or interdependent processing to water with remaining valid.The existing water purifier RO membrane filter service life is mainly
By the time, the replacement that expires in 3 years is generally set, the stopping state of RO film cannot be grasped in real time；Such water purifier is by water quality
Constraint just will affect the service life of RO membrane filter once the foreign ion of water is relatively more, as such, it is desirable in bigger pressure
Under power effect, it is just able to achieve counter osmosis, the performance for being chronically at the pressure pump to work under high pressure will be damaged, this
Sample, not only influences the service life of pressure pump, and the damage that will cause pressure pump is even paralysed.
A kind of filter element of water purifier service life is disclosed application No. is 201220049486.4 Chinese patent to be automatically reminded to control
System, the system include the water purifier being set between water intake end and water outlet, filter core are equipped in the water purifier, further
It include: the solenoid valve being set between water intake end and water purifier；The water flow detection being set between the solenoid valve and water purifier
Unit；And a control mainboard, the control mainboard are equipped with a processor, the processor and solenoid valve, water flow detection are single
Member is electrically connected.The technical solution of the patent is that filter element of water purifier is specifically arranged according to the water quality situation of various regions user man
Life value, when the water for flowing through filter core reaches preparatory setting value, the solenoid valve of water purifier entered at water will be automatically cut off
It supplies water.The shortcomings that technical solution, is: once the water quality for flowing through filter core changes, will cause the service life contracting of filter core
It is short, and user can not replace filter core in time, in this way, the daily drinking water to user brings security risk.
In view of this present invention is specifically proposed.
Summary of the invention
It being capable of accurate judgement water purification the technical problem to be solved in the present invention is that overcoming the deficiencies of the prior art and provide one kind
The judgment method in machine RO membrane filter service life.
It is a further object to provide a kind of water purifiers, with the above-mentioned RO membrane filter service life judgment method of application to RO
Membrane filter service life is accurately determined.
In order to solve the above technical problems, the present invention is using the basic conception of technical solution:
A kind of judgment method in water purifier RO membrane filter service life, influent quality and effluent quality difference to RO membrane filter
It is detected, and will test value compared with preset value, to obtain the OR membrane filter life information of RO membrane filter.
Further, following steps are specifically included,
S101: the influent quality A1 and effluent quality A2 of real-time detection RO membrane filter；
S102: removal rate B=(A1-A2)/A1*100% of OR membrane filter is calculated；
S103: by the removal rate B being calculated compared with setting value B`, as B < B`, step S104 is executed；As B >=B`
When, water purifier works normally；
S104: whether the cumulative time for judging removal rate B < setting value B` is more than setting time, if so, thening follow the steps
S105；If it is not, then executing step S101 again.
The RO membrane filter service life of S105:RO membrane filter expires, and water purifier issues RO membrane filter and replaces alarm signal；
Further, it in step S104, is set if the removal rate B being calculated in real time is always less than in continuous time period t
Definite value B`, thens follow the steps S105；
And/or in step S104, if cumulative time of the removal rate B being calculated in real time less than setting value B` exceeds
Setting time value T, thens follow the steps S105.
Preferably, in continuous time period t, if the removal rate B being calculated in real time is greater than the set value B`, this time lasting
Time timing is reset, and return step S101.
Further, when water purifier executes step S105, water purifier stops working and locks, and water purifier issues the user with RO
Membrane filter replaces alarm signal；
The RO membrane filter replacement alarm signal includes warning note image, lamp shown by the display device of water purifier
The warning note audio information that the audio output device of one of light, graphical information or combination and/or water purifier is issued,
And/or the alarm pushed information that water purifier is sent to customer mobile terminal.
Further, when water purifier executes step S105, water purifier stops water inlet, set booster pump, electromagnetism on water purifier
Valve is in closed state, and the control panel of water purifier is in the lock state.
Further, as B >=B`, according to following formula:
The remaining life of RO membrane filter=(removal rate B- setting value B`) * corresponds to constant Proportional, obtains the surplus of RO membrane filter
The remaining service life exports and feeds back to user.
The present invention also provides a kind of water purifiers of judgment method using the above-mentioned water purifier RO membrane filter service life comprising from
Fore filter group, RO membrane filter and the post-filter group that the water inlet of water purifier is successively connected in series by the road；It is preposition
The water purification outlet of filter group through the second water purification outlet pipeline, post-filter group water purification water outlet through the first water purification outlet pipe
Road and the water purification outlet of water purifier respectively can on-off be connected, fore filter group water outlet downstream and RO membrane filter water purification
Water outlet downstream is respectively corresponded equipped with TDS Water quality detector, to cross drainage water quality difference to fore filter group, RO membrane filter
Carry out corresponding detection.
Further, the fore filter group includes the first molten blown polypropylene being successively connected in series by the road from water inlet
Filter, granular activated carbon filter and the second fusion-jetting polypropylene filter, the filtering accuracy of the first molten blown polypropylene filter
Less than the second fusion-jetting polypropylene filter.
Further, the water outlet of the second fusion-jetting polypropylene filter through threeway respectively with the first connecting line and the second water purification
Outlet pipeline is connected, and the first connecting line other end is connected with RO membrane filter, the other end of the second water purification outlet pipeline
It is connected with the water purification outlet of water purifier；First connecting line or the second water purification outlet pipeline are equipped with the first TDS water quality
Detector, to be detected to the drainage water quality of crossing flowed out from fore filter group.
Further, the water inlet end of the first connecting line is connected with the drainage water outlet of crossing of fore filter group, water outlet
It is connected with the water inlet of RO membrane filter；Be successively arranged on first connecting line along water (flow) direction, control piper on-off it is low
It compresses switch, the solenoid valve of flow rate of water flow in control piper, cross the first TDS water quality that drainage water quality is detected to prefilter group
Detector increases the booster pump for flowing into RO film water flowing pressure.
Further, the post-filter group include at least Postposition carbon filter, Postposition carbon filter into
The second connecting line of the mouth of a river is connected with the water purification water outlet of RO membrane filter, the water outlet of Postposition carbon filter and
One water purification outlet pipeline is connected；Second connecting line or the first water purification outlet pipeline are equipped with the 2nd TDS water quality detection
Device checks the drainage water quality of crossing flowed out from RO membrane filter.
Further, the concentrated water water outlet of RO membrane filter is connected with the drainpipe of water purifier, and the water purification of RO membrane filter goes out
The second connecting line of the mouth of a river is connected with the water inlet of Postposition carbon filter, the water outlet of Postposition carbon filter with
First water purification outlet pipeline is connected；Second connecting line is equipped with the 2nd TDS Water quality detector, to filter to from RO film
The drainage water quality of crossing of device outflow is detected.
Further, the water inlet end of the second connecting line is connected with the water purification water outlet of RO membrane filter, the second connecting tube
The water outlet on road is connected with the water inlet of post-filter；It is successively arranged on second connecting line along water (flow) direction, control pipe
The non-return valve of flow direction in the high-voltage switch gear of road on-off, control piper crosses what drainage water quality was detected to RO membrane filter
2nd TDS Water quality detector.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art.
The present invention judges the service life feelings of RO membrane filter by detecting the TDS water quality of RO membrane filter inflow and outflow water flow
Condition can fast and accurately judge that RO membrane lifetime expires, and through display board set on water purifier by being displayed in red alarm, bee
Ring device, which persistently alarms etc. to issue RO film in real time to user and expire, replaces prompt tone；Meanwhile being no longer discharged machine lock, it is convenient straight
The prompting user of sight need to carry out changing core processing, and then ensure the safe drinking water of water purifier user.Judgment method energy of the invention
Enough life situations that are simple, accurately judging that out RO membrane filter, eliminate the troublesome operation step of conventional bowl service life judgment method
Suddenly, it is more conducive to user's use, improves user experience.
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
Attached drawing is as a part of the invention, and for providing further understanding of the invention, of the invention is schematic
Examples and descriptions thereof are used to explain the present invention, but does not constitute an undue limitation on the present invention.Obviously, the accompanying drawings in the following description
Only some embodiments to those skilled in the art without creative efforts, can be with
Other accompanying drawings can also be obtained according to these attached drawings.In the accompanying drawings:
Fig. 1 is the attachment structure schematic diagram of water purifier in the embodiment of the present invention；
Fig. 2 is the flow chart of water purifier control method in the embodiment of the present invention；
Fig. 3 be in the embodiment of the present invention water purifier to the flow chart of RO film service life judgment method；
Major components explanation:
1-the first fusion-jetting polypropylene filter, 2-granular activated carbon filters, the 3-the second fusion-jetting polypropylene filter,
4-RO membrane filters, 5-post active carbon filter cores, the 6-the first water purification outlet pipeline, the 7-the second water purification outlet pipeline, 8-the
One connecting line, the 9-the second connecting line, 10-drainpipes, the 11-the one TDS Water quality detector, the inspection of the 12-the two TDS water quality
Survey device, 13-booster pumps, 14-low tension switches, 15-high-voltage switch gears, 16-solenoid valves, 17-temperature sensors, 18-the first
Control valve, the 19-the second control valve, 20-water purification outlets.
It should be noted that these attached drawings and verbal description are not intended to the design model limiting the invention in any way
It encloses, but illustrates idea of the invention by referring to specific embodiments for those skilled in the art.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in embodiment is clearly and completely described, the following examples are intended to illustrate the invention, but
It is not intended to limit the scope of the invention.
Embodiment one
As shown in Figure 1, this embodiment describes a kind of water purifiers comprising the water inlet of self-cleaning water dispenser is successively gone here and there by the road
Fore filter group, RO membrane filter 4 and the post-filter group of downlink connection；The filtering water outlet of fore filter group is through second
Water purification outlet 20 of the filtering water outlet through the first water purification outlet pipeline 6 with water purifier of water purification outlet pipeline 7, post-filter group
Respectively can on-off be connected, the filtering water outlet downstream of fore filter group and the filtering water outlet downstream point of RO membrane filter
It is not correspondingly provided with TDS Water quality detector, carries out corresponding inspection respectively to cross drainage water quality to fore filter group, RO membrane filter
It surveys.
By above-mentioned setting, with realize to the fore filter of water purifier cross drainage and RO membrane filter filtering water respectively into
The purpose of row TDS water quality detection, and detected value is compared with setting value, to reach that fore filter filters, water quality reaches
The effect that target water is discharged directly as water purifier water purification, and then realize and shorten the RO membrane filter working time, improve RO film mistake
The purpose of the filter core service life of filter.
In the present embodiment, the fore filter group includes that the first molten spray being successively connected in series by the road from water inlet gathers
Propylene filter 1, granular activated carbon filter 2 and the second fusion-jetting polypropylene filter 3, the first molten blown polypropylene filter 1
Filtering accuracy is less than the second fusion-jetting polypropylene filter 3.
In the present embodiment, the water outlet of the second fusion-jetting polypropylene filter 3 through threeway respectively with the first connecting line 8 and
Two water purification outlet pipelines 7 are connected, and 8 other end of the first connecting line is connected with RO membrane filter 4, the second water purification outlet pipeline
7 other end is connected with the water purification outlet 20 of water purifier；First connecting line 8 is equipped with the first TDS Water quality detector 11,
To be detected to the drainage water quality of crossing flowed out from fore filter group.
In the present embodiment, the water inlet end of the first connecting line 8 and filtering water outlet, the i.e. second melt-blown of fore filter group
The water outlet of polypropylene filter 3 is connected, and water outlet is connected with the water inlet of RO membrane filter 4；On first connecting line 8
It is successively arranged along water (flow) direction, the solenoid valve 16 of flow rate of water flow in the low tension switch 14 of control piper on-off, control piper, to preceding
Set filtering group drainage water quality detected the first TDS Water quality detector 11, increase flow into RO film water flowing pressure booster pump
13.Preferably, the pipeline portions between solenoid valve 16 and the first TDS Water quality detector 11 are additionally provided with temperature sensor 17, with
The water flow temperature for flowing through RO membrane filter is measured in real time.
In the present embodiment, the post-filter group includes at least Postposition carbon filter 5, Postposition carbon filter
5 water inlet is connected through the second connecting line 9 with the water purification water outlet of RO membrane filter 4, and Postposition carbon filter 5 goes out
The mouth of a river is connected with the first water purification outlet pipeline 6；Second connecting line 9 is equipped with the 2nd TDS Water quality detector 12, to from RO
The drainage water quality of crossing of the outflow of membrane filter 4 is checked.
In the present embodiment, the concentrated water water outlet of RO membrane filter 4 is connected with the drainpipe 10 of water purifier, RO membrane filter 4
Water purification water outlet be connected through the second connecting line 9 with the water inlet of Postposition carbon filter 5, Postposition carbon filter
5 water outlet is connected with the first water purification outlet pipeline 6；Second connecting line 9 is equipped with the 2nd TDS Water quality detector
12, to be detected to the drainage water quality of crossing flowed out from RO membrane filter.
In the present embodiment, the water inlet end of the second connecting line 9 is connected with the water purification water outlet of RO membrane filter 4, and second
The water outlet of connecting line 9 is connected with the water inlet of post-filter；It is successively set on second connecting line 9 along water (flow) direction
Have, the non-return valve of flow direction in control piper, crosses drainage water to RO membrane filter 4 at the high-voltage switch gear 15 of control piper on-off
The 2nd TDS Water quality detector 19 that matter is detected.
In the present embodiment, the first control valve 18 is respectively equipped on the first water purification outlet pipeline 6 and the second water purification outlet pipeline 7
Water purifier is realized with the second control valve 19 to control the correspondence on-off of the first water purification outlet pipeline and the second water purification outlet pipeline
Water purification outlet controllably commutate the purpose of water supply from the second water purification outlet pipeline or the first water purification outlet pipeline.Preferably, water purification
Outlet 20 is set as water tap with two outlet, and water tap with two outlet is equipped with interconnected two water supply connectors and a water outlet connector,
Two water supply connectors are connected with the first water purification outlet pipeline 6 and the second water purification outlet pipeline 7 respectively, and at two water outlet connectors
It is respectively equipped with the first control valve 18 and the second control valve 19 of control piper on-off.
Embodiment two
The difference of the present embodiment and above-described embodiment one is: the first TDS Water quality detector 11 is set to the second water purification and goes out
In water lines 7, water quality detection is carried out with drainage of crossing flowing out from fore filter group, flowing into the first water purification outlet pipe 7, equally
It can be achieved to cross the purpose that drainage water quality is effectively detected to fore filter group.
In the present embodiment, the second water purification outlet pipeline 7 is equipped with the second control valve 19 of control piper on-off, the first TDS
Water quality detector 11 is set in the upstream of the second control valve 19, is examined with the water flow water quality to the second control valve upstream
Look into, so realize to the second control valve closure after, the water in the second water purification outlet pipeline can still carry out effective water quality detection
Purpose.
Embodiment three
The difference of the present embodiment and above-described embodiment one is: the 2nd TDS Water quality detector 12 is set to the first water purification and goes out
In water lines 6, with to RO membrane filter 4 filter after, post active carbon filter core treated cross drainage water quality effectively detected,
It can also equally realize and the purpose that drainage water quality is effectively detected is crossed to RO membrane filter 4.
In the present embodiment, the first water purification outlet pipeline 6 is equipped with the first control valve 18 of control piper on-off, the 2nd TDS
Water quality detector 12 is set in the upstream of the first control valve 18, is examined with the water flow water quality to the first control valve upstream
Look into, so realize to after the first control valve closure, the water in the first water purification outlet pipe can still carry out the mesh of effective water quality detection
's.
Example IV
A kind of control method of one to three any water purifier based on the above embodiment, water purifier packet are described in the present embodiment
Include fore filter group, RO membrane filter and the post-filter group successively contacted along water (flow) direction；To fore filter group mistake
Drainage carries out TDS water quality detection, when reaching established standards value to cross the correspondence detected value of drainage in fore filter group, before control
That sets filter group crosses the direct self-cleaning water dispenser water purification outlet outflow of drainage.
By the above method, so that fore filter group is crossed when drainage water quality meets established standards directly through water purifier water purification
Outlet outflow is simultaneously called for user, is avoided fore filter group and is crossed after drainage water quality reaching standard still through RO membrane filter filtering feelings
The generation of condition thus reduces energy consumption, has adjusted water efficiency processed；Meanwhile reduce RO membrane filter using the time, extend and make
Use the service life.In addition, enable water purifier that can carry out corresponding work according to the raw water of different quality, with it is reasonable, efficiently raw water is carried out
Filtering, and the water purification for meeting established standards water quality is produced for user's self-cleaning water dispenser water purification outlet calling.
In the present embodiment, when the TDS water quality detection value that fore filter group crosses drainage is not up to established standards value, will before
The filtered water stream for setting filter group is filtered through RO membrane filter, and is crossed drainage to RO membrane filter and carried out TDS water quality again
Detection, when reaching established standards value to cross the correspondence detected value of drainage in RO membrane filter, crosses drainage after for RO membrane filter
Set the water purification outlet outflow of self-cleaning water dispenser again after active carbon filter is handled.
As shown in Fig. 2, water purifier specific work process includes the following steps in the present embodiment,
S1, raw water self-cleaning water dispenser water inlet flow into；
S2, raw water are successively via the first molten blown polypropylene filter, granular activated carbon filter and the second fusion-jetting polypropylene
The fore filter group that filter is constituted is filtered, and enables the raw water for flowing into water purifier followed by the first molten blown polypropylene filtering
Device, granular activated carbon filter and the second fusion-jetting polypropylene filter；
S3, to the second fusion-jetting polypropylene filter outflow, fore filter group it is filtered cross drainage carry out TDS water quality
Detection executes step S4 when detected value reaches established standards value；Otherwise, step S5 is executed；
The water purification that drainage flows directly into water purifier through the second water purification outlet pipeline filtered excessively of S4, fore filter group goes out
Mouthful, it is used for user as water purification；
S5, the filtered filtered water stream of fore filter group are filtered place to RO membrane filter, and through RO membrane filter
Reason；
S6, to RO membrane filter water purification water outlet outflow, RO membrane filter it is filtered cross drainage carry out TDS water again
Quality detection executes step S7 when detected value reaches established standards value；
The filtered filtered water stream of S7, RO membrane filter is to Postposition carbon filter, through Postposition carbon filter mistake
After filter processing, the water purification outlet of water purifier is flowed to through the first water purification outlet pipeline, is used for user as water purification.
In the present embodiment, when executing above-mentioned steps S4, RO membrane filter stops working, and the water purification outlet of water purifier only passes through
Second water purification outlet pipeline supply water, to avoid water purifier repeated work, reduce energy consumption.
Embodiment five
A kind of water purifier RO membrane filter longevity of one to three any water purifier based on the above embodiment is described in the present embodiment
The judgment method of life, influent quality and effluent quality to RO membrane filter detect respectively, and will test value and preset value
It compares, to obtain the OR membrane filter life information of RO membrane filter.
The life situations of RO membrane filter are judged by detecting the TDS water quality of RO membrane filter inflow and outflow water flow, it can
Fast and accurately to judge that RO membrane lifetime expires, and through display board set on water purifier by being displayed in red alarm, buzzer
Lasting alarm etc., which issues RO film in real time to user and expires, replaces prompt tone；Meanwhile being no longer discharged machine lock, it is convenient intuitive
It reminds user that need to carry out changing core processing, and then has ensured the safe drinking water of water purifier user.RO membrane filter described in the present embodiment makes
With service life judgment method can life situations that are simple, accurately judging that out RO membrane filter, eliminate the judgement of conventional bowl service life
The troublesome operation step of method is more conducive to user's use, improves user experience.
As shown in figure 3, the judgment method in water purifier RO membrane filter service life specifically includes following steps in the present embodiment,
S101: the influent quality A1 and effluent quality A2 of real-time detection RO membrane filter；
S102: removal rate B=(A1-A2)/A1*100% of OR membrane filter is calculated；
S103: by the removal rate B being calculated compared with setting value B`, as B < B`, step S104 is executed；As B >=B`
When, water purifier works normally；
S104: whether the cumulative time for judging removal rate B < setting value B` is more than setting time, if so, thening follow the steps
S105；If it is not, then executing step S101 again.
The RO membrane filter service life of S105:RO membrane filter expires, and water purifier issues RO membrane filter and replaces alarm signal；
In the present embodiment, the service life of RO membrane filter is judged by the water quality of detection RO membrane filter water inlet end and water outlet
Expire situation, simple and effective, and feasibility is high；When RO membrane filter is blocked, RO membrane filter inflow and outflow both ends water flow water quality
Less, once the two difference is less than preset value, then water purifier can prompt user to carry out the replacement of RO membrane filter for variation, not only can be with
The components such as the booster pump on protection water purifier will not be damaged, and can guarantee that user drinks safe water source.
In the present embodiment, when water purifier executes step S105, water purifier stops working and locks, and water purifier is sent out to user
RO membrane filter replaces alarm signal out；The RO membrane filter replacement alarm signal includes shown by the display device of water purifier
The report that the audio output device of one of warning note image, light, graphical information or combination and/or water purifier is issued
The alarm pushed information that alert prompt audio-frequency information and/or water purifier are sent to customer mobile terminal.
In the present embodiment, when water purifier executes step S105, water purifier stops water inlet, set booster pump on water purifier,
Solenoid valve is in closed state, and the control panel of water purifier is in the lock state.
In the present embodiment, as B >=B`, according to following formula: the remaining life of RO membrane filter=(removal rate B- setting value
B`) * corresponds to constant Proportional, show that the remaining life of RO membrane filter exports and feeds back to user.Wherein, the remaining longevity of RO membrane filter
The variation range of life can be the straight line changed linearly, be also possible to the curve in nonlinear change, with RO membrane filter into
Water water outlet both ends water quality difference becomes smaller, and the value of the remaining life of RO membrane filter can gradually become smaller until becoming zero.
In the present embodiment, in step S104, if the removal rate B being calculated in real time is small always in continuous time period t
In setting value B`, S105 is thened follow the steps；And/or in step S104, if the removal rate B being calculated in real time is less than setting
The cumulative time of value B` exceeds setting time value T, thens follow the steps S105.Preferably, in continuous time period t, if meter in real time
The removal rate B obtained is greater than the set value B`, then the secondary duration timing is reset, and return step S101.
In step S104, in the continuous time period t of setting, if the removal rate B being calculated in real time is greater than the set value B
`, then the secondary duration timing is reset, and return step S101.Preferably, the continuous time period t of the setting is set to 60s, if
Value of fixing time T is set to 600s, it should be noted that the preset time is the feasible value of technical staff's sets itself, is actually being answered
In, which is also possible to other feasible values.
Processor by calculate OR membrane filter removal rate B maintain less than preset value B` time and default continuous time period
60s is compared, if the duration is greater than 60s, enters step S105, otherwise return step S101, and by this timing
It resets；
Meanwhile processor adds up the removal rate B for calculating OR membrane filter less than time of preset value B`, when will be accumulative
Between be compared with setting time value 600s, if the cumulative time be greater than 600s, enter step S105, otherwise return step
S101, water purifier are normally carried out work.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.
Claims (10)
1. a kind of judgment method in water purifier RO membrane filter service life, it is characterised in that: to the influent quality of RO membrane filter and go out
Water water quality is detected respectively, and will test value compared with preset value, to show that the OR membrane filter service life of RO membrane filter believes
Breath.
2. the judgment method in water purifier RO membrane filter service life according to claim 1, it is characterised in that: specifically include following
Step,
S101: the influent quality A1 and effluent quality A2 of real-time detection RO membrane filter；
S102: removal rate B=(A1-A2)/A1*100% of OR membrane filter is calculated；
S103: by the removal rate B being calculated compared with setting value B`, as B < B`, step S104 is executed；As B >=B`,
Water purifier works normally；
S104: whether the cumulative time for judging removal rate B < setting value B` is more than setting time, if so, thening follow the steps S105；
If it is not, then executing step S101 again.
The RO membrane filter service life of S105:RO membrane filter expires, and water purifier issues RO membrane filter and replaces alarm signal.
3. the judgment method in water purifier RO membrane filter service life according to claim 2, it is characterised in that: in step S104
In, if the removal rate B being calculated in real time is always less than setting value B` in continuous time period t, then follow the steps S105；
And/or in step S104, if cumulative time of the removal rate B being calculated in real time less than setting value B` is beyond setting
Time value T, thens follow the steps S105；
Preferably, in continuous time period t, if the removal rate B being calculated in real time is greater than the set value B`, the secondary duration
Timing is reset, and return step S101.
4. the judgment method in water purifier RO membrane filter service life according to claim 2 or 3, it is characterised in that: in water purifier
When executing step S105, water purifier stops working and locks, and water purifier issues the user with RO membrane filter replacement alarm signal；
The described RO membrane filter replacement alarm signal include warning note image, light shown by the display device of water purifier,
The warning note audio information that the audio output device of one of graphical information or combination and/or water purifier is issued, and/
Or the alarm pushed information that water purifier is sent to customer mobile terminal.
5. the judgment method in water purifier RO membrane filter service life according to claim 2 or 3, it is characterised in that: in water purifier
When executing step S105, water purifier stops water inlet, and set booster pump, solenoid valve are in closed state, water purifier on water purifier
Control panel be in the lock state.
6. according to the judgment method in claim 2 to 5 any water purifier RO membrane filter service life, it is characterised in that: when B >=
When B`, according to following formula:
The remaining life of RO membrane filter=(removal rate B- setting value B`) * corresponds to constant Proportional, obtains the remaining longevity of RO membrane filter
Life exports and feeds back to user.
7. a kind of water purifier of the judgment method using any water purifier RO membrane filter service life of the claims 1 to 6,
Fore filter group, RO membrane filter and the post-filter that water inlet including self-cleaning water dispenser is successively connected in series by the road
Group；Water purification water outlet of the water purification outlet of fore filter group through the second water purification outlet pipeline, post-filter group is net through first
Water outlet pipeline and the water purification outlet of water purifier respectively can on-off be connected, fore filter group water outlet downstream and RO film mistake
Filter water purification water outlet downstream is respectively corresponded equipped with TDS Water quality detector, to cross drainage to fore filter group, RO membrane filter
Water quality carries out corresponding detection respectively.
8. a kind of water purifier according to claim 7, it is characterised in that: the fore filter group includes passing through from water inlet
The first molten blown polypropylene filter, granular activated carbon filter and the filtering of the second fusion-jetting polypropylene that pipeline is successively connected in series
Device, the filtering accuracy of the first molten blown polypropylene filter is less than the second fusion-jetting polypropylene filter.
9. a kind of water purifier according to claim 7, it is characterised in that: the water outlet of the second fusion-jetting polypropylene filter passes through
Threeway is connected with the first connecting line and the second water purification outlet pipeline respectively, the first connecting line other end and RO membrane filter
It is connected, the other end of the second water purification outlet pipeline is connected with the water purification outlet of water purifier；First connecting line or
Two water purification outlet pipelines are equipped with the first TDS Water quality detector, to carry out to the drainage water quality of crossing flowed out from fore filter group
Detection.
10. according to a kind of any water purifier of claim 7 to 9, it is characterised in that: the post-filter group is at least wrapped
Postposition carbon filter is included, the water inlet of Postposition carbon filter goes out through the water purification of the second connecting line and RO membrane filter
The mouth of a river is connected, and the water outlet of Postposition carbon filter is connected with the first water purification outlet pipeline；Second connecting line,
Or first water purification outlet pipeline be equipped with the 2nd TDS Water quality detector, to from RO membrane filter flow out cross drainage water quality progress
It checks.
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