CN108996731A - A kind of water-saving multistage RO filtration system - Google Patents
A kind of water-saving multistage RO filtration system Download PDFInfo
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- CN108996731A CN108996731A CN201811070378.3A CN201811070378A CN108996731A CN 108996731 A CN108996731 A CN 108996731A CN 201811070378 A CN201811070378 A CN 201811070378A CN 108996731 A CN108996731 A CN 108996731A
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- water
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- solenoid valve
- concentrated
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- 238000001914 filtration Methods 0.000 title claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 500
- 238000012545 processing Methods 0.000 claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 239000002699 waste material Substances 0.000 claims abstract description 11
- 238000011010 flushing procedure Methods 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 27
- 239000002351 wastewater Substances 0.000 claims description 25
- 239000003814 drug Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 17
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 9
- 238000010612 desalination reaction Methods 0.000 claims description 7
- 239000013535 sea water Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 238000005189 flocculation Methods 0.000 claims description 4
- 230000016615 flocculation Effects 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000001223 reverse osmosis Methods 0.000 description 208
- 239000012528 membrane Substances 0.000 description 19
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000010992 reflux Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 238000012544 monitoring process Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 239000012141 concentrate Substances 0.000 description 7
- 238000000746 purification Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000005374 membrane filtration Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
- B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/04—Feed pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/12—Controlling or regulating
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of water-saving multistage RO filtration systems, comprising: pretreatment water tank receives raw water and carries out pretreatment generation processing water to raw water；Level-one RO filter device receives and handles water described in simultaneously filtration treatment, raw pure water and level-one concentrated water；The level-one RO filter device is provided with the first Water quality detector of detection level-one concentrated water；Second level RO filter device receives level-one concentrated water described in simultaneously filtration treatment, generates pure water and secondary concentrated water；The water inlet of the reception level-one concentrated water of the second level RO filter device is provided with the first solenoid valve；Return line is provided with second solenoid valve；One end of return line is connected to the water outlet of the level-one concentrated water of the level-one RO filter device, and the other end of return line is connected to pretreatment water tank；Controller is connect with the first Water quality detector, the first solenoid valve and second solenoid valve respectively.This filtration system reduces water resource waste, improves the utilization efficiency of water.And the service efficiency of RO film greatly improves, and reduces operation and maintenance cost for consumer.
Description
Technical field
The invention belongs to the technical fields of saving type RO filtering, and in particular to a kind of water-saving multistage RO filtering system
System.
Background technique
With getting worse for water pollution, the improvement of people's living standards, people increasingly pay attention to health, to drinking
The requirement of water is also higher and higher.Then, various water purification products gradually enter into the places such as family, office, factory, existing water purification
Product mainly has reverse osmosis type and receives two class of type, and application at present is more the water purification product of reverse osmosis type.
In the water purification product of reverse osmosis type, raw water can generate pure water and concentrated water after the processing of reverse osmosis purified water system,
The pure water of existing reverse osmosis water purification machine processing system and the ratio of concentrated water are about 1:1, and utilization rate is about 50%.When RO film
When decaying to the later period, the ratio of water purification and concentrated water is up to 1:6.
Existing water-saving RO filtration system, work characteristics and defect are as follows:
Put current limliting 1. suppressing: it realizes effective pipe to concentrated water discharge by controlling time opening or the closing of solenoid valve
Reason, to achieve the purpose that water-saving.But the disadvantage is that the workload of RO film and pump is larger, the service life of RO film greatly shortens,
Cost is improved, stable bulk article can not be formed in market and be promoted.
2. changing concentrated water ratio: generally there is water purification: concentrated water=1:1's or 2:1, mainly by pressure before change film, improve
The rate of recovery of film, it is water-saving to achieve the purpose that.But the disadvantage is that RO film salt rejection rate reduces comparatively fast, the load becomes large for booster pump, RO
Membrane lifetime shortens.
3. concentrate recirculation: by increasing the processing step for re-filtering to concentrated water, carrying out secondary RO film mistake to concentrated water
Filter.Although the utilization rate to raw water can be improved, utilization rate is still relatively low.
In contrast, concentrate recirculation is the preferred embodiment of water-saving RO filtration system at this stage.But the water of concentrate recirculation
Matter processing method is single, is not bound with raw water quality and takes water management of process processed appropriate, is easy to bear caused by junior's RO film
Load is big.Its stiff water principle processed be easy to cause the raising of maintenance cost.Therefore concentrated water how is efficiently used, concentration concentrated water is reduced
Discharge, the water efficiency processed for increasing filtration system are a problem to be solved.
Summary of the invention
It is simple the invention aims to solve the water process processed of existing RO membrane filtration system, cause concentrated water to utilize low
Under, RO film device bear big technical problem, a kind of water-saving multistage RO filtration system is provided, water resource is effectively reduced
Waste, improve the utilization rate of water.And the service efficiency of RO film greatly improves.
To solve the above-mentioned problems, the present invention is achieved by following technical scheme:
The water-saving multistage RO filtration system of one kind of the present invention, comprising:
Pretreatment water tank receives raw water and carries out pretreatment generation processing water to raw water；
Level-one RO filter device receives and handles water described in simultaneously filtration treatment, raw pure water and level-one concentrated water；The level-one RO
Filter device is provided with the first Water quality detector of detection level-one concentrated water；
Second level RO filter device receives level-one concentrated water described in simultaneously filtration treatment, generates pure water and secondary concentrated water；Described two
The water inlet of the reception level-one concentrated water of grade RO filter device is provided with the first solenoid valve；
Return line is provided with second solenoid valve；One end of return line is connected to the one of the level-one RO filter device
The other end of the water outlet of grade concentrated water, return line is connected to pretreatment water tank；
Controller is connect with the first Water quality detector, the first solenoid valve and second solenoid valve respectively；
Wherein, when first Water quality detector detects the water quality of the level-one concentrated water not higher than waste water standard value, control
Device processed controls the unlatching of the first solenoid valve, second solenoid valve is closed, and the level-one concentrated water of level-one RO filter device is delivered to second level RO mistake
Filter device；When the water quality that first Water quality detector detects the level-one concentrated water is higher than waste water standard value, controller control
First solenoid valve is closed, second solenoid valve is opened, and level-one concentrated water is delivered to pretreatment water tank from return line.
Further, the multistage RO membrane filtration system further include:
Water storage box receives the second level concentrated water of second level RO filter device.
It is designed by this, since the water quality of second level concentrated water is poor, if being back to pretreatment water tank or the progress of RO filter device
Reprocessing, the burden that can increase equipment improve maintenance cost.Second level concentrated water is collected by water storage box, it is same that there is saving water money
The concentrated water of the purpose in source, collection can make tap water routine use, prevent the discharge of waste water, while this is simple and practical in structure.Into
One step, the water storage box is connected to the pretreatment water tank by pipeline and receives processing water, and is provided with the 4th on the pipeline
Solenoid valve；
The water inlet of the reception of the level-one RO filter device processing water is provided with third solenoid valve；
The water outlet of the processing water of the pretreatment water tank is provided with the second Water quality detector；
Wherein, second Water quality detector, third solenoid valve and the 4th solenoid valve are connect with controller respectively；
When second Water quality detector detects the water quality of the processing water not higher than waste water standard value, controller control
Third solenoid valve is opened, the 4th solenoid valve is closed, and processing water is delivered to level-one RO filter device；When second Water quality detector
When detecting the water quality of the processing water higher than waste water standard value, controller controls the closing of third solenoid valve, the 4th solenoid valve is opened,
Processing water is delivered to water storage box.
It is designed by this, pretreatment water tank is protected again for the first of RO filter device, improves the degree of purity of raw water, is one
The filtration treatment of grade RO filter device and second level RO filter device reduces the heavy burdens, and effectively increases the service life of RO film.Due to
The water quality of raw water is difficult to ensure, and the second Water quality detector is arranged in and protects again for RO filters column device second, is used to examine
Survey the water quality of the processing water discharged with pretreatment box.When the water quality of raw water is poor, also it is difficult to reach standard value after pretreatment
When, it is detected by the second Water quality detector, controller controls accordingly and pretreated water is delivered in water storage box and reuses.
The filtration treatment for mitigating level-one RO filter device and second level RO filter device reduces the heavy burdens.Pretreatment water tank and the second water quality detection
The collaboration of device, intelligent control enter the water quality of the water of RO filter device, improve the service life of RO filter device, mitigate user's
Maintenance cost.Further, the waste water standard value is 200PPM.
Further, the multistage RO filtration system further includes the three-level RO filter device being connected to water storage box, the three-level
The collection water of RO filter device filtration treatment water storage box generates pure water and three-level concentrated water.It is designed by this, increases and cope with super concentrated water
Three-level RO filter device, further super concentrated water is filtered, improves the utilization rate of water resource.The waste water of discharge is still available for
Routine use.
Further, the multistage RO membrane filtration system further include:
Raw water pipeline provides raw water；
Waste line collects the three-level concentrated water；
Pure water pipeline, it includes several branch lines；Several branch lines is respectively communicated with level-one RO filter device, second level
The water outlet of the pure water of RO filter device and three-level RO filter device；
Wherein, each branch line is in turn provided with the 5th solenoid valve and third Water quality detector by its water discharging direction；
5th solenoid valve and third Water quality detector are connect with controller respectively；
When the water quality that the third Water quality detector detects the pure water of RO filter devices at different levels is more than pure water standard value, control
Device processed controls the 5th solenoid valve and corresponding RO filter device closes and triggers alarm.
Further, multistage RO membrane filtration system further includes anti-clogging detection device comprising:
Flowmeter is arranged on the branch line；The flowmeter is connect with controller, flowmeter detection wherein one
The water yield of the pure water of RO filter device；
Flushing pipeline is provided with liquid medicine case；One end of the flushing pipeline is connected to the water inlet of a wherein RO filter device
Mouthful, the other end of flushing pipeline is connected to the water outlet of the concentrated water of corresponding RO filter device；
Wherein, the flushing pipeline is in normally off；When the water outlet of the pure water of flowmeter RO filter device detected
When amount is less than standard value, controller controls that the 5th solenoid valve is closed and control flushing pipeline is opened, the flushing pipeline and corresponding
RO filter device connection.
Designed by this, increase anti-clogging detection device, can reverse osmosis (RO) film built in accurate measurements water purifier etc. and
The particular problem of RO membrane filter, including reverse osmosis (RO) film are damaged, the monitoring of the blocking of reverse osmosis (RO) film or the blocking of RO membrane filter,
It is supplied to user and carries out respective handling, be convenient for the user to use, system is more humane.
Anti-clogging detection device is built-in with the flushing pipeline of RO film, which is provided with liquid medicine case, when monitoring occurs
When clogging, flushing pipeline forms the flushing reflux of circulation, is mixed to form flushing liquid medicine by water and liquid medicine case, and constantly
Ground carries out chemical flush to RO film, and while protecting RO film, recycling for RO film can be improved；Meanwhile blocking user occurs not
It needs voluntarily to carry out disassembly flushing.
Further, the three-level RO filter device uses sea water desalination RO filter device.
Further, the pretreatment water tank is built-in with flocculation oxidant layer, quartz sand layer and active carbon layer.
A kind of water purifier comprising the water-saving multistage RO filtration system of above-mentioned one kind.
Compared with prior art, the beneficial effects of the present invention are:
By the reflow treatment for carrying out selectivity to the concentrated water after by-pass filtration.Level-one is detected by the first Water quality detector
The concentrated water water quality that RO filter device is discharged judges and is carried out for system concentrate recirculation processing or enters secondary filtration.The party
Formula pre-processes concentrate recirculation to pretreatment water tank when concentrated water water quality is poor again, and reduction is avoided to RO filter devices at different levels
Handle amount of impurities；Second level RO filter device is protected emphatically, increases the service life of the filter material of RO filter devices at different levels on year-on-year basis
It is long.Reduce water resource waste simultaneously, improves the utilization efficiency of water.And the service efficiency of RO film greatly improves, for consumption
Person reduces operation and maintenance cost.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the water manufacturing system figure of the water-saving multistage RO filtration system of one kind of the invention；
Fig. 2 is the water manufacturing system and electrical system connection signal of the water-saving multistage RO filtration system of one kind of the invention
Figure；
Fig. 3 is the pure water pipeline composition schematic diagram of the water-saving multistage RO filtration system of one kind of the invention；
Fig. 4 is the level-one RO filter device of the water-saving multistage RO filtration system of one kind of the invention and its matched anti-blocking
Fill in detection device connection schematic diagram；
In figure: 1- pretreatment water tank, 2- level-one RO filter device, 3- second level RO filter device, 4- three-level RO filter device,
5- water storage box；
11- raw water pipeline, 12- pure water pipeline, 13- waste line, 14- return line, 15- first pipe, 16- second are managed
Road, 17- third pipeline, the 4th pipeline of 18-, the 5th pipeline of 19-, 10- flushing pipeline；
The first solenoid valve of 21-, 22- second solenoid valve, 23- third solenoid valve, the 4th solenoid valve of 24-, the 5th electromagnetism of 25-
Valve, the 6th solenoid valve of 26-, the 7th solenoid valve of 27-；
The first Water quality detector of 31-, the second Water quality detector of 32-, 33- third Water quality detector；
41- flowmeter, 42- pressure valve, 43- liquid medicine case.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1
As shown in FIG. 1 to FIG. 2, the water-saving multistage RO filtration system of one kind of the present invention, comprising:
System pipeline: raw water pipeline 11, pure water pipeline 12, waste line 13, reflux line 14 and several linking pipelines.Institute
Stating linking pipeline includes first pipe 15, second pipe 16, third pipeline 17, the 4th pipeline 18 and the 5th pipeline 19.
Functional device: pretreatment water tank 1, level-one RO filter device 2, second level RO filter device 3, three-level RO filter device 4
With water storage box 5.
Electric component: controller, several solenoid valves and Water quality detector.The Water quality detector is sensed using TDS water quality
Device.
The system pipeline collectively forms the water manufacturing system of multistage RO filtration system for being connected to each functional device.It is several
Solenoid valve and Water quality detector be laid on water manufacturing system, controller is connect with solenoid valve and Water quality detector respectively, intelligence
Control and management water manufacturing system.
Wherein, the RO filter devices at different levels include a pressure pump and RO membrane filter；The entrance of the pressure pump
For the water inlet of RO filter devices at different levels.The outlet of the RO membrane filter and pressure pump connects.The RO membrane filter it is pure
Water out is the pure water mouth of RO filter devices at different levels.The concentrated water outlet of the RO membrane filter is the concentrated water of RO filter devices at different levels
Mouthful.
As shown in Figure 1, the connection composition of water manufacturing system is as follows:
The pretreatment water tank 1 has original water inlet, circulation concentrated water import and water outlet.The raw water of pretreatment water tank 1 into
Mouth is connected to raw water pipeline 11, and pretreatment water tank 1 pre-processes raw water, generates processing water.
The level-one RO filter device 2 has the first water inlet, the first pure water mouth and the first concentrated water spout.First water inlet
Mouth is connected to the water outlet of pretreatment water tank 1 by first pipe 15, carries out by-pass filtration to processing water.The second pure water mouth with
Pure water pipeline 12 is connected to, and pure water discharge is used for user.
The second level RO filter device 3 has the second water inlet, the second pure water mouth and the second concentrated water spout.Second water inlet
Mouth is connected to the first concentrated water spout of level-one RO filter device 2, the level-one that level-one RO filter device 2 is discharged by second pipe 16
Concentrated water carries out secondary filtration.The second pure water mouth is connected to pure water pipeline 12, and pure water discharge is used for user.Described
Two concentrated water spouts are connected to water storage box 5 by third pipeline 17, and the second level concentrated water discharge of secondary filter is stored up into water storage box 5
It puts.
The three-level RO filter device 4 has third water inlet, third pure water mouth and third concentrated water spout.The third water inlet
Mouth is connected to water storage box 5 by the 5th pipeline 19, and the collection water that three-level RO filter device 4 collects water storage box 5 carries out three-level mistake
Filter.The third pure water mouth is connected to pure water pipeline 12, and pure water discharge is used for user.The third concentrated water spout and waste discharge
Pipeline connection, by the three-level concentrated water discharge filtered three times to the external world.
The present embodiment preferably, the three-level RO filter device 4 mainly for the treatment of each filtration treatment process high concentration
Three-level concentrated water.Referring to reverse osmosis seawater desalination equipment in its type selecting, high-pressure pump and sea water desalination RO film are mainly used.Ensure three
Grade RO filter device 4 copes with the three-level concentrated water of high concentration, and further filtration treatment optimizes water manufacturing system and ensure at fresh water
Water utilization rate.
As shown in Fig. 2, the collaborative combination of water manufacturing system and electrical system, intelligent control and management water manufacturing system.It has
Body connection composition is as follows:
1, concentrate recirculation is handled:
System composition: including water manufacturing system and reflux line 14.First concentrated water spout of the level-one RO filter device 2 is arranged
First Water quality detector 31.In the second water inlet of second level RO filter device 3, the first solenoid valve 21 is set.It is additionally provided with a reflux
Pipeline 14, (three-way piece setting is in the first Water quality detector 31 and the first electricity by three-way piece connection second pipe 16 for one end
Between magnet valve 21), the circulation concentrated water import of the other end connection pretreatment water tank 1 of reflux line 14.Level-one RO filter device 2
Level-one concentrated water it is reflowable into pretreatment water tank 1, pre-processed again.The reflux line 14 is provided with second solenoid valve
22。
Working principle: the first Water quality detector 31 is used to detect the water for the level-one concentrated water that level-one RO filter device 2 is discharged
Matter.First Water quality detector 31 sends water quality numerical value to controller in real time, and controller receives water quality numerical value and sets with original useless
Water quality standard value compares.When the water quality of level-one concentrated water is not higher than waste water standard value, controller controls the first solenoid valve 21 and opens
It opens, second solenoid valve 22 is closed；The level-one concentrated water that level-one RO filter device 2 is discharged enters second level RO filter device 3 and carries out two
Grade filtering.When the water quality of level-one concentrated water is higher than waste water standard value, controller controls the closing of the first solenoid valve 21, second solenoid valve
22 open, and exceeded level-one concentrated water flows into pretreatment water tank 1 from return pipe and pre-processed again, are re-circulated into water manufacturing system
In.
It is arranged by this, the reflow treatment of selectivity is carried out to the level-one concentrated water after by-pass filtration.It is examined by the first water quality
The water quality for surveying the level-one concentrated water that device detection level-one RO filter device is discharged, judges for system and carries out the reflux of level-one concentrated water
Processing enters secondary filtration.Which locates concentrate recirculation to pretreatment water tank when the water quality of level-one concentrated water is poor in advance again
Reason reduces the processing amount of impurities avoided to RO filter devices at different levels；Second level RO filter device is protected emphatically, also makes RO mistakes at different levels
The service life for filtering the filter material of device increases by a year-on-year basis.Reduce water resource waste simultaneously, improves the utilization efficiency of water.And RO
The service efficiency of film greatly improves, and reduces operation and maintenance cost for consumer.
2, super concentrated water collects processing:
System composition: including water manufacturing system, water storage box 5 and three-level RO filter device 4.And the first water inlet setting
There is third solenoid valve 23.The water outlet of the pretreatment water tank 1 is provided with the second Water quality detector 32.The water storage box 5 is arranged
There is the 4th pipeline 18 of connection first pipe 15, the processing water of pretreatment water tank 1 can flow into water storage box 5.4th pipeline
The 4th solenoid valve 24 is provided on 18.
The water quality for the processing water that second Water quality detector 32 detects；If the water quality for handling water is not higher than waste water standard value
When, controller controls the unlatching of third solenoid valve 23, the 4th solenoid valve 24 is closed；If the water quality for handling water is higher than waste water standard value
When, controller controls the closing of third solenoid valve 23, the 4th solenoid valve 24 is opened.
Working principle: the second Water quality detector 32 is used to detect the water quality for the processing water that pretreatment water tank 1 is discharged.Second
Water quality detector 32 sends water quality numerical value to controller in real time, and controller receives water quality numerical value and the waste water standard value with original setting
It compares.When the water quality for handling water is not higher than waste water standard value, controller controls the unlatching of third solenoid valve 23, the 4th electromagnetism
Valve 24 is closed；The processing water that pretreatment water tank 1 is discharged enters level-one RO filter device 2 and carries out by-pass filtration.When processing water
When water quality is higher than waste water standard value, controller controls the closing of third solenoid valve 23, the 4th solenoid valve 24 is opened, exceeded processing water
It is flowed into water storage box 5 from the 4th pipeline 18.The super concentrated water of subsequent water storage box 5 is filtered processing by three-level RO filter device 4.
It is arranged by this, (is more than the processing water and two of waste water standard value to super concentrated water caused by filter progress at different levels
Grade concentrated water) it is pooled in water storage box, then osmosis filtration processing is carried out by three-level RO filter device.It is examined by the second water quality
The water quality for surveying the processing water that device detection pretreatment water tank is discharged, going forward side by side to be advanced into by-pass filtration or enter for system judgement stores
Water tank.When raw water quality is poor, pretreated water quality is also difficult to reach standard which.And then water water conservancy diversion will be handled to storage
In water tank.Reduce the processing amount of impurities avoided to RO filter devices at different levels；Level-one RO filter device is protected emphatically, is also made at different levels
The service life of the filter material of RO filter device increases by a year-on-year basis.Reduce water resource waste simultaneously, improves the utilization efficiency of water.And
And the service efficiency of RO film greatly improves, and reduces operation and maintenance cost for consumer.
Meanwhile the second level concentrated water of second level RO filter device does not utilize since the water quality of the concentrated water is poor and returns to pretreated water
Case, level-one RO filter device and second level RO filter device are for re-filtering.It is collected by water storage box, is available for the daily of user
It is used with water, lavatory water, cleaning water etc. can be replaced, improve the utilization rate of water resource.
Meanwhile the super concentrated water of the collection of water storage box is handled again by the way that three-level RO filter device is arranged.Subtract simultaneously
Lack water resource waste, improves the utilization efficiency of water.
A kind of water purifier comprising above-mentioned water-saving multistage RO filtration system.The water purifier passes through multistage RO mistake
Filter system carries out water process processed, provides pure water for user.
The working principle of the water-saving multistage RO filtration system of one kind of the present invention is:
It is used to detect the water quality for the level-one concentrated water that level-one RO filter device is discharged by the first Water quality detector.First water
Quality detector sends water quality numerical value to controller in real time, and controller receives water quality numerical value and carries out with the waste water standard value of original setting
Comparison.When the water quality of level-one concentrated water is not higher than waste water standard value, controller controls the unlatching of the first solenoid valve, second solenoid valve is closed
It closes；The level-one concentrated water that level-one RO filter device is discharged enters second level RO filter device and carries out secondary filtration.When level-one concentrated water
When water quality is higher than waste water standard value, controller controls the closing of the first solenoid valve, second solenoid valve is opened, and exceeded level-one concentrated water is certainly
Return pipe flows into pretreatment water tank and is pre-processed again, is re-circulated into water manufacturing system.
Embodiment 2
The water-saving multistage RO filtration system of one kind described in the present embodiment 2, this reality similar to the structure of embodiment 1
Apply is carried out to the structure of pretreatment water tank 1, level-one RO filter device 2, second level RO filter device 3 and three-level RO filter device 4
It explains.
Specifically, the pretreatment water tank 1 is built-in with flocculation oxidant layer, quartz sand layer and active carbon layer；The flocculation oxidant layer,
Quartz sand layer and active carbon layer is top-down is sequentially stacked.It should be noted that the present embodiment 2 does not limit pretreatment water tank
1 structure and pretreating process.Pretreatment water tank 1 mainly large granular impurity, chlorine residue and tiny micro- contained in processing raw water
Grain, guarantees the influent quality of counter-infiltration system, carries out pretreatment to raw water and generates processing water, in protection scope of the present invention
It is interior.This is only the preferred embodiment of the present embodiment 2, and structure is simple, pretreating effect is good, reduces user cost.
The level-one RO filter device 2, the structure of second level RO filter device 3 and three-level RO filter device 4 are identical.It includes
Pressure pump and RO membrane filter.The outlet of the pressure pump is the water inlet of RO filter devices at different levels, the outlet of pressure pump and RO
Membrane filter connection.The RO membrane filter is built-in with reverse osmosis (RO) film, and RO membrane filter has pure water mouth (RO filtering dresses at different levels
The N pure water mouth set) and concentrated water spout (the N pure water mouths of RO filter devices at different levels).
The present embodiment preferably, the three-level RO filter device 4 mainly for the treatment of each filtration treatment process high concentration
Dense tertiary effluent.It is main that high-pressure pump and sea water desalination RO film is used to form referring to reverse osmosis seawater desalination equipment in its type selecting
Desalination plant.
Pretreatment water tank described in the present embodiment 2, level-one RO filter device, second level RO filter device and three-level RO filtering dress
The structure set is equally applicable in embodiment 1,3,4 and 5.
Embodiment 3
The water-saving multistage RO filtration system of one kind described in the present embodiment 3, difference similar to the structure of embodiment 1
Place is: the pure water pipeline 12 includes several branch lines；Several branch lines is respectively communicated with level-one RO filter device
2, second level RO filter device 3 and three-level RO filter device 4.
Specifically, as shown in figure 3, each branch line of pure water pipeline 12 is disposed with the 5th electricity by its water discharging direction
Magnet valve 25 and third Water quality detector 33.5th solenoid valve 25 and third Water quality detector 33 are connect with controller respectively.
Wherein, the third Water quality detector 33 is used to detect the water quality of pure water；When pure water water quality is more than pure water standard value, controller
It controls the 5th solenoid valve 25 and corresponding RO filter device closes and triggers alarm.Inform that staff carries out replacement maintenance.
It is designed, the water quality of pure water is monitored, it is ensured that the water quality of multistage RO filtration system waits until to ensure by this.Together
When, when exception occurs in the water quality of pure water, there is exception in the RO reverse osmosis membrane for representing corresponding RO filter device, closes the pure water point
It while bye-pass and sounds an alarm, informs that personnel carry out examination and maintenance.Realize this system intelligent monitoring, it is ensured that water processed into
Journey is normally carried out.
Embodiment 4
The water-saving multistage RO filtration system of one kind described in the present embodiment 4, difference similar to the structure of embodiment 3
Place is: it is based on the basis of embodiment 3, is additionally provided with this multistage RO filtration system and is additionally provided with liquid medicine cleaning system.
The liquid medicine cleaning system, which matches RO at different levels, to be crossed device and is provided with several anti-clogging detection devices.
As shown in figure 4, the present embodiment is specifically carried out by taking the matched anti-clogging detection device of 2 institute of level-one RO filter device as an example
Explain (second level RO filter device, three-level RO filter device matched anti-clogging detection device and level-one RO filter device phase
Together).
Specifically, the anti-clogging detection device of level-one RO filter device 2 described in the present embodiment 4 comprising pure water pipeline
12 branch line, flushing pipe 10, first pipe 15 and second pipe 16.Described in one end connection of the flushing pipe 10
First pipe 15, the end are reflux end；The other end of the flushing pipe 10 connects second pipe 16, which is water inlet end.
Specifically, the water inlet end of the flushing pipe 10 is connected between the first water inlet and third solenoid valve 23.It is described
The reflux end of flushing pipe 10 is connected between the first Water quality detector 31 and the first solenoid valve 21, the connection and reflux of water inlet end
Pipeline 14 does not interfere with each other setting.
Water discharging direction of the branch line on its pipeline along pure water is disposed with flowmeter 41, third water quality detection
Device 33 and the 5th solenoid valve 25.The flowmeter 41 is for counting real-time pure water flow.The third Water quality detector 33 is examined
Survey the water quality condition for the pure water that level-one RO filter device 2 is discharged.5th solenoid valve 25 is for closing the pure of branch line
Water out, by closing pure water outlet, the inside of level-one RO filter device 2 can not form pressure difference, and then close the mistake of pure water
Filter.
The second pipe 16 is additionally provided with pressure valve 42 on its pipeline.The pressure valve 42 is folded in the inspection of the first water quality
It surveys between device 31 and the first solenoid valve 21.Pressure valve 42 is used to detect the pressure condition of the discharge concentrated water of the first pipe 15；
Tube body connection between the water inlet end and the pressure valve 42 and the first solenoid valve 21 of the flushing pipe 10.
Flushing pipe 10 is disposed with the 6th solenoid valve 26,43 and of liquid medicine case from water inlet end to reflux end on pipeline
7th solenoid valve 27.6th solenoid valve 26 and the 7th solenoid valve 27 are used to open and close the flushing reflux of the flushing pipe 10.
Under normal condition, the 6th solenoid valve 26 and the 7th solenoid valve 27 are in close state.The liquid medicine case 43 is used for and second pipe
The 16 concentrated water mixing being discharged, form and rinse liquid medicine, and then carry out chemical punching to the reverse osmosis (RO) film of level-one RO filter device 2
It washes, while saving water resource.Pass through pressure pump being pumped into flushing liquid medicine circulation in RO membrane filter of level-one RO filter device 2
It is rinsed.
Opened and closed by the collaboration of third solenoid valve 23 and the 7th solenoid valve 27, can switch the processing water of first pipe 15 into
The liquid medicine of water and flushing pipe 10 enters.And the intellectual monitoring of anti-clogging detection device and the intelligence in each channel are realized by controller
It can opening and closing.
For the anti-clogging detection arrangement monitors of the present embodiment to level-one RO filter device 2 there are when blockage problem, first is electric
Magnet valve 21, third solenoid valve 23 and the 5th solenoid valve 25 simultaneously close off, and anti-clogging detection device is closed and level-one RO filter device
The 2 all pipelines being in communication with the outside.Meanwhile the 6th solenoid valve 26 and the 7th solenoid valve 27 open simultaneously, make flushing pipe 10,
One pipeline, 15 second pipe 16 and level-one RO filter device 2 communicate.The flushing to level-one RO filter device 2 is constituted to flow back.One
Under the action of the pressure itself pump of grade filter device, by remaining concentrated water in level-one RO filter device 2 successively from flushing
The reflux end of pipeline 10, RO membrane filter, second pipe 16, the water inlet end of irrigation channel, liquid medicine case 43, which are formed, presses above-mentioned flowing
The flushing of the circulation in direction flows back, when concentrated water enters liquid medicine case 43, can be converted with liquid medicine it is hook-shaped at liquid medicine is rinsed, to reverse osmosis (RO)
Film carries out chemical flush.
A kind of anti-clogging detection device working principle of reverse osmosis (RO) film of the present invention is:
Detection group is collectively formed by the flowmeter of branch line, third quality detector and pressure valve, forms following detection knot
Fruit:
1, the water quality no problem of Water quality detector detection, the pure water water yield decline of flowmeter statistics, pressure valve testing number
It is worth higher；Monitoring result is that the reverse osmosis (RO) film of level-one RO filter device causes blockages；Anti-clogging detection device opens punching
Pipeline 10 is washed, flushing state is transferred to and chemical flush is carried out to reverse osmosis (RO) film.
2, the water quality no problem of Water quality detector detection, less, pressure valve is examined for the pure water water yield variation of flowmeter statistics
It is lower to survey numerical value；Monitoring result be reverse osmosis (RO) film it is without exception, the inside of RO membrane filter causes blockages, need to dismantle into
Row cleaning.
3, the water quality of Water quality detector detection goes wrong, the pure water water yield variation nothing or larger of flowmeter statistics, pressure
Power valve detect numerical value without or it is smaller；Monitoring result is that reverse osmosis (RO) film is damaged or RO membrane filter internal structure is damaged, and needs to tear open
It unloads and is checked and replaced.
Reverse osmosis (RO) film and RO membrane filter are formed by flowmeter, third water quality detector and pressure valve triplicity
Monitoring group, can reverse osmosis (RO) film and RO membrane filter built in accurate measurements water purifier etc. particular problem, including reverse osmosis
Saturating RO film is damaged, the monitoring of the blocking of reverse osmosis (RO) film or the blocking of RO membrane filter, is supplied to user and carries out respective handling, more square
It is user-friendly, hommization.
The matched anti-clogging detection device of second level RO filter device and three-level RO filter device institute, respectively with level-one RO mistake
The structure phase Sihe working principle for filtering device is identical.Statement is omitted in the present embodiment.
Embodiment 5
The water-saving multistage RO filtration system of one kind described in the present embodiment 5, difference similar to the structure of embodiment 1
Place is that the present embodiment 5 is specifically to the value of concentrated water standard value and pure water standard value.The waste water standard value is
200PPM.The pure water standard value is 20PMM.
Since the value of waste water standard value is influenced whether to the processing of each filter progress and making for RO filter device at different levels
Use the service life.To the processing water after treating nature water, water quality, which will reach 200PPM or less just, be can enter in junior's filter progress.Mirror
It is higher in the water quality PPM value of China's tap water (i.e. raw water), the use of RO filter devices at different levels can be effectively improved by the measure
Service life.Water quality 200PPM is in the critical field of mineral water.
The value of concentrated water standard value described in the present embodiment 5 is 200PM.It is equally applicable in embodiment 2,3 and 4.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, therefore
Without departing from the technical solutions of the present invention, according to the technical essence of the invention it is to the above embodiments it is any modification,
Equivalent variations and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of water-saving multistage RO filtration system characterized by comprising
Pretreatment water tank receives raw water and carries out pretreatment generation processing water to raw water；
Level-one RO filter device receives and handles water described in simultaneously filtration treatment, raw pure water and level-one concentrated water；The level-one RO filtering
Device is provided with the first Water quality detector of detection level-one concentrated water；
Second level RO filter device receives level-one concentrated water described in simultaneously filtration treatment, generates pure water and secondary concentrated water；The second level RO
The water inlet of the reception level-one concentrated water of filter device is provided with the first solenoid valve；
Return line is provided with second solenoid valve on pipeline；One end of return line is connected to the level-one RO filter device
The other end of the water outlet of level-one concentrated water, return line is connected to pretreatment water tank；
Controller is connect with the first Water quality detector, the first solenoid valve and second solenoid valve respectively；
Wherein, when first Water quality detector detects the water quality of the level-one concentrated water not higher than waste water standard value, controller
The unlatching of the first solenoid valve, second solenoid valve closing are controlled, the level-one concentrated water of level-one RO filter device is delivered to second level RO filtering dress
It sets；When the water quality that first Water quality detector detects the level-one concentrated water is higher than waste water standard value, controller control first
Solenoid valve is closed, second solenoid valve is opened, and level-one concentrated water is delivered to pretreatment water tank from return line.
2. water-saving multistage RO filtration system according to claim 1, which is characterized in that further include:
Water storage box receives the second level concentrated water of second level RO filter device.
3. water-saving multistage RO filtration system according to claim 2, it is characterised in that:
The water storage box is connected to the pretreatment water tank by pipeline and receives the processing water, and is provided with the 4th on the pipeline
Solenoid valve；
The water inlet of the reception of the level-one RO filter device processing water is provided with third solenoid valve；
The water outlet of the processing water of the pretreatment water tank is provided with the second Water quality detector；
Wherein, second Water quality detector, third solenoid valve and the 4th solenoid valve are connect with controller respectively；
When second Water quality detector detects the water quality of the processing water not higher than waste water standard value, controller controls third
Solenoid valve is opened, the 4th solenoid valve is closed, and processing water is delivered to level-one RO filter device；When second Water quality detector detects
When the water quality of the processing water is higher than waste water standard value, controller controls the closing of third solenoid valve, the 4th solenoid valve is opened, processing
Water is delivered to water storage box.
4. according to claim 1 to multistage RO filtration system water-saving described in 3 any one, it is characterised in that:
The waste water standard value is 200PPM.
5. water-saving multistage RO filtration system according to claim 2 or 3, it is characterised in that:
The multistage RO filtration system further includes the three-level RO filter device being connected to water storage box, the filtering of three-level RO filter device
The collection water of the water storage box is handled, pure water and three-level concentrated water are generated.
6. water-saving multistage RO filtration system according to claim 5, which is characterized in that further include:
Raw water pipeline provides raw water；
Waste line collects the three-level concentrated water；
Pure water pipeline, it includes several branch lines；Several branch lines is respectively communicated with level-one RO filter device, second level RO mistake
Filter the water outlet of the pure water of device and three-level RO filter device；
Wherein, each branch line is in turn provided with the 5th solenoid valve and third Water quality detector by its water discharging direction；It is described
5th solenoid valve and third Water quality detector are connect with controller respectively；
When the water quality that the third Water quality detector detects the pure water of RO filter devices at different levels is more than pure water standard value, controller
It controls the 5th solenoid valve and corresponding RO filter device closes and triggers alarm.
7. water-saving multistage RO filtration system according to claim 6, which is characterized in that further include anti-clogging detection dress
It sets comprising:
Flowmeter is arranged on the branch line；The flowmeter is connect with controller, and flowmeter detects a wherein RO mistake
Filter the water yield of the pure water of device；
Flushing pipeline is provided with liquid medicine case；One end of the flushing pipeline is connected to the water inlet of a wherein RO filter device, punching
Wash pipeline the other end be connected to corresponding RO filter device concentrated water water outlet；
Wherein, the flushing pipeline is in normally off；When the water yield of the pure water of flowmeter RO filter device detected is small
When standard value, controller controls that the 5th solenoid valve is closed and control flushing pipeline is opened, the flushing pipeline and corresponding RO
Filter device is connected to and is rinsed processing.
8. water-saving multistage RO filtration system according to claim 5, it is characterised in that:
The three-level RO filter device uses sea water desalination RO filter device.
9. water-saving multistage RO filtration system according to claim 5, it is characterised in that:
The pretreatment water tank is built-in with flocculation oxidant layer, quartz sand layer and active carbon layer.
10. a kind of water purifier comprising the water-saving multistage RO filtration system of one kind described in claims 1 to 3 any one.
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| CN201811070378.3A CN108996731B (en) | 2018-09-13 | 2018-09-13 | Water-saving multistage RO filtration system |
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Cited By (1)
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| CN110304748A (en) * | 2019-07-30 | 2019-10-08 | 常州市卫生监督所 | A kind of drinking water on-line monitoring system |
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