CN109095560A - Water purification system and its control method, computer readable storage medium - Google Patents
Water purification system and its control method, computer readable storage medium Download PDFInfo
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- CN109095560A CN109095560A CN201710474618.5A CN201710474618A CN109095560A CN 109095560 A CN109095560 A CN 109095560A CN 201710474618 A CN201710474618 A CN 201710474618A CN 109095560 A CN109095560 A CN 109095560A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 556
- 238000000746 purification Methods 0.000 title claims abstract description 184
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000003860 storage Methods 0.000 title claims abstract description 11
- 239000002351 wastewater Substances 0.000 claims abstract description 401
- 239000012528 membrane Substances 0.000 claims abstract description 350
- 239000002699 waste material Substances 0.000 claims description 90
- 238000010992 reflux Methods 0.000 claims description 72
- 230000001105 regulatory effect Effects 0.000 claims description 43
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 239000000306 component Substances 0.000 description 46
- 239000012535 impurity Substances 0.000 description 37
- 238000001223 reverse osmosis Methods 0.000 description 32
- 238000001914 filtration Methods 0.000 description 31
- 239000000126 substance Substances 0.000 description 26
- 238000004519 manufacturing process Methods 0.000 description 20
- 102000010637 Aquaporins Human genes 0.000 description 19
- 108010063290 Aquaporins Proteins 0.000 description 18
- 238000009825 accumulation Methods 0.000 description 14
- 238000012360 testing method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 9
- 238000002156 mixing Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 4
- 238000005374 membrane filtration Methods 0.000 description 4
- 238000011897 real-time detection Methods 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- -1 dirt Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000009466 transformation Effects 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or 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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- 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]
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention discloses the control method, water purification system and computer readable storage medium of a kind of water purification system, wherein the control method of water purification system is the following steps are included: obtain the real-time waste water discharge rate of membrane filter；When the real-time waste water discharge rate is greater than the maximum value in default draining section, then the real-time waste water discharge rate is reduced；When the real-time waste water discharge rate is less than the minimum value in default draining section, then the real-time waste water discharge rate is increased.Monitor and adjust simultaneously the real-time waste water discharge rate of membrane filter, to guarantee that the waste water discharge rate of membrane filter keeps stablizing, to on the one hand avoid water purification system, to drain into extraneous wastewater flow rate excessive, and causes the producing water ratio of water purification system lower, and then appearance the problem of cause water resource to be wasted.
Description
Technical field
The present invention relates to technical field of water purification, in particular to a kind of water purification system and its control method computer-readable are deposited
Storage media.
Background technique
Drinking Water Problem is the problem of common people pay special attention to, and having many substances for being unfavorable for health in water has been thing out of question
Real, this is also that common people's healthy water has been the root that the main reason for being strengthened and purifier market is hot.
The core component of existing water purification system is membrane filter, and pipeline connected to it includes raw water pipeline, pure water pipeline, gives up
Water lines and return line, the return line is by waste line and raw water pipeline connection, so that generating after membrane filter filtering
Waste water some can be back in membrane filter and be filtered again, which improves the production water of entire water purification system
Rate also improves the utilization rate of water.
However, the wastewater flow rate that the producing water ratio of water purification system is discharged with it has close relationship, if the waste water of water purification system
Discharge rate is excessive, then will lead to a large amount of water resource and be wasted, thereby reduce the producing water ratio of entire water purification system.
Summary of the invention
The main object of the present invention is to propose a kind of control method of water purification system, it is intended to improve the production water of water purification system
Rate.
To achieve the above object, a kind of control method of water purification system proposed by the present invention comprising following steps:
Obtain the real-time waste water discharge rate of membrane filter；
When the real-time waste water discharge rate is greater than the maximum value in default draining section, then by the real-time waste water discharge rate
Reduce；
When the real-time waste water discharge rate is less than the minimum value in default draining section, then by the real-time waste water discharge rate
Increase.
Preferably, it before the real-time waste water discharge rate step for obtaining membrane filter, further comprises the steps of:
Obtain the real-time raw water TDS value of the membrane filter；
When the real-time raw water TDS value is greater than the maximum value in the first default section TDS, then by the default draining section
Minimum value and maximum value increase simultaneously；
When the maximum value in the real-time raw water TDS value section TDS default less than first, then by the default draining section
Minimum value and maximum value reduce simultaneously；Or,
Obtain the real-time waste water TDS value of the membrane filter；
When the real-time waste water TDS value is greater than the maximum value in the second default section TDS, then by the default draining section
Minimum value and maximum value increase simultaneously；
When the maximum value in the real-time waste water TDS value section TDS default less than second, then by the default draining section
Minimum value and maximum value reduce simultaneously；Or,
Obtain the real-time reflux waste water TDS value being back in the membrane filter；
When the real-time reflux waste water TDS value, which is greater than third, presets the maximum value in the section TDS, then by the default draining
The minimum value and maximum value in section increase simultaneously；
When the real-time reflux waste water TDS value, which is less than third, presets the minimum value in the section TDS, then by the default draining
The minimum value and maximum value in section reduce simultaneously.
Preferably, the control method of the water purification system is further comprising the steps of:
Obtain the real-time reflux waste water TDS value being back in the membrane filter；
When the real-time reflux waste water TDS value is greater than the maximum value in the 4th section TDS, then the membrane filter will be back to
Interior reflux wastewater flow rate reduces；
When minimum value of the real-time reflux waste water TDS value less than the 4th section TDS, then the membrane filter will be back to
Interior reflux wastewater flow rate increases.
Preferably, the control method of the water purification system is further comprising the steps of:
Obtain the waste water discharge total amount of the membrane filter；
When waste water discharge total amount is the integral multiple of default waste water discharge rate, then the reflux water route for controlling membrane filter is closed
The first preset duration is closed, to be rinsed to the membrane filter.
Preferably, the control method of the water purification system is further comprising the steps of:
When the membrane filter complete filter when, control the membrane filter reflux water route close, with to the membrane filter into
Row rinses；
When the washing time of the membrane filter reaches the second preset duration, the waste water water route of membrane filter is closed, with right
The membrane filter carries out pressure maintaining；
To the membrane filter carry out pressure maintaining dwell time reach third preset duration when, stop to the membrane filter into
Row pressure maintaining.
The present invention also provides a kind of water purification system, which includes: membrane filter, including shell and is installed on described
The intracorporal membrane component of shell, the shell have raw water mouth be connected to raw water tubes, the pure water mouth that is connected to pure water pipe and with give up
The waste water mouth of water pipe connection, and the raw water mouth is connected to the waste water mouth by return pipe；
Waste water regulating valve is installed on the waste pipe；
Controller, is stored with the control program for the water purification system that can be run, and the control program of the water purification system is described
Controller executes, and performs the steps of
Obtain the real-time waste water discharge rate of membrane filter；
When the real-time waste water discharge rate is greater than the maximum value in default draining section, then opening the waste water regulating valve
Degree reduces；
When the real-time waste water discharge rate is less than the minimum value in default draining section, then opening the waste water regulating valve
Degree increases.
Preferably, the water purification system further includes the flowmeter being electrically connected with the controller, the flowmeter installation
In on the waste pipe, and for detect the real-time waste water discharge rate for draining into the external world by the waste pipe.
Preferably, the flowmeter, which is also used to detect, drains into extraneous waste water discharge total amount by the waste pipe；
The control program of the water purification system performs the steps of when being executed by the controller
Obtain the waste water discharge total amount of the membrane filter；
When waste water discharge total amount is the integral multiple of default waste water discharge rate, then the reflux water route for controlling membrane filter is closed
The first preset duration is closed, to be rinsed to the membrane filter.
Preferably, the water purification system further includes the TDS detector being electrically connected with the controller, the TDS detection
Device is installed on the raw water tubes or the waste pipe or the return pipe；
The control program of the water purification system performs the steps of when being executed by the controller
Obtain the real-time raw water TDS value of the membrane filter；
When the real-time raw water TDS value is greater than the maximum value in the first default section TDS, then by the default draining section
Minimum value and maximum value increase simultaneously；
When the maximum value in the real-time raw water TDS value section TDS default less than first, then by the default draining section
Minimum value and maximum value reduce simultaneously；Or,
Obtain the real-time waste water TDS value of the membrane filter；
When the real-time waste water TDS value is greater than the maximum value in the second default section TDS, then by the default draining section
Minimum value and maximum value increase simultaneously；
When the maximum value in the real-time waste water TDS value section TDS default less than second, then by the default draining section
Minimum value and maximum value reduce simultaneously；Or,
Obtain the real-time reflux waste water TDS value being back in the membrane filter；
When the real-time reflux waste water TDS value, which is greater than third, presets the maximum value in the section TDS, then by the default draining
The minimum value and maximum value in section increase simultaneously；
When the real-time reflux waste water TDS value, which is less than third, presets the minimum value in the section TDS, then by the default draining
The minimum value and maximum value in section reduce simultaneously.
Preferably, the TDS detector is installed on the return pipe, and the water purification system further includes and the controller
The return of waste water valve of electric connection；
The control program of the water purification system performs the steps of when being executed by the controller
Obtain the real-time reflux waste water TDS value being back in the membrane filter；
When the real-time reflux waste water TDS value is greater than the maximum value in the 4th section TDS, then by the return of waste water valve
Aperture reduces；
When minimum value of the real-time reflux waste water TDS value less than the 4th section TDS, then by the return of waste water valve
Aperture increases.
Preferably, the water purification system further includes the booster pump being electrically connected with the controller, the booster pump installation
In on the raw water tubes；The control program of the water purification system performs the steps of when being executed by the controller
When the membrane filter is completed to filter, controls the return of waste water valve and close, to be rinsed to the membrane filter；
When the washing time of the membrane filter reaches the second preset duration, the waste water regulating valve is closed, to institute
It states membrane filter and carries out pressure maintaining；
When the dwell time for carrying out pressure maintaining to the membrane filter reaching third preset duration, the booster pump is closed.
Preferably, the booster pump is freq uency conversion supercharging pump；
The real-time waste water discharge rate that the controller is also used to detect in the flowmeter is less than default draining section most
When small value, increase the revolving speed of the booster pump；It is greater than default draining section in the real-time waste water discharge rate of flowmeter detection
Maximum value when, reduce the revolving speed of the booster pump.
To achieve the goals above, the present invention also proposes a kind of computer readable storage medium, described computer-readable to deposit
The control program of water purification system is stored on storage media, when the control program of the water purification system is executed by a controller described in realization
Water purification system control method the step of.
The present invention by real-time waste water discharge rate and presets draining section by monitoring the real-time waste water discharge rate of membrane filter
It is compared, when real-time waste water discharge rate is greater than the maximum value in default draining section, then by the reduction of real-time waste water discharge rate；Work as reality
When waste water discharge rate when being less than the minimum value in default draining section, then real-time waste water discharge rate is increased.It ensures that so net
The real-time waste water discharge rate of water system is stable, on the one hand avoid water purification system, to drain into extraneous wastewater flow rate excessive,
And cause the producing water ratio of water purification system lower, and then appearance the problem of cause water resource to be wasted；On the other hand, additionally it is possible to avoid
It is very few that water purification system drains into extraneous wastewater flow rate, and then other substances accumulation such as lead to a large amount of impurity, dirt is in membrane filter,
And then the problem of leading to the lost of life of membrane filter appearance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of water purification system of the present invention；
Fig. 2 is the cross-sectional view of an embodiment of membrane filter in Fig. 1；
Fig. 3 is the structural schematic diagram of membrane component in Fig. 2；
Fig. 4 is the structural schematic diagram of pure water pipe in Fig. 3；
Fig. 5 is the structural schematic diagram of waste pipe in Fig. 3；
Fig. 6 is the flow diagram of the first embodiment of the control method of water purification system of the invention；
Fig. 7 is the flow diagram of the second embodiment of the control method of water purification system of the invention；
Fig. 8 is the flow diagram of the 3rd embodiment of the control method of water purification system of the invention；
Fig. 9 is the flow diagram of the fourth embodiment of the control method of water purification system of the invention；
Figure 10 is the flow diagram of the 5th embodiment of the control method of water purification system of the invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | Water purification system | 123a | Reverse osmosis membrane |
| 10 | Membrane filter | 123b | Pure water flow-guiding screen |
| 20 | Waste water regulating valve | 123c | Water inlet flow-guiding screen |
| 30 | Flowmeter | 121a | Pure water blasthole |
| 11 | Shell | 122a | Waste water blasthole |
| 12 | Membrane component | 30 | TDS detector |
| a | Raw water mouth | 40 | Return of waste water valve |
| b | Pure water mouth | 45 | Booster pump |
| c | Waste water mouth | 50 | Inlet water solenoid valve |
| 121 | Central tube | 55 | First pressure switch |
| 122 | Waste pipe | 60 | Second pressure switch |
| 123 | Reverse osmosis membrane group | 70 | First check valve |
| d | Raw water tubes | 75 | Front filter element |
| e | Pure water pipe | 80 | Postposition filter core |
| f | Waste pipe | 85 | Second one-way valve |
| g | Return pipe | 90 | UV sterilizing tap |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
In order to improve the producing water ratio of water purification system 100, the present invention proposes a kind of new water purification system 100, please refers to Fig. 1,
Fig. 1 shows the structural schematic diagram of water purification system 100 of the invention.
The water purification system 100 include membrane filter 10, waste water regulating valve 20, flowmeter 30, controller (not shown), pipeline with
And other component.
Please with reference to Fig. 2, which includes shell 11 and membrane component 12；Shell 11 is equipped with raw water mouth a, pure water
Mouth b and waste water mouth c.It should be noted that raw water mouth a, the pure water mouth b and waste water mouth c on shell 11 can be set in shell
The same end of body 11, can also be divided into two opposite ends of shell 11, or be divided into 11 other positions of shell.At this to shell
Specific restriction is not done in the position of raw water mouth a, pure water mouth b and waste water mouth c setting on 11.
Membrane component 12 includes central tube 121, multiple waste pipes 122 and multiple reverse osmosis membrane 123a groups 123, Duo Gepai
Useless being provided at circumferentially spaced along central tube 121 of pipe 122, each reverse osmosis membrane 123a group 123 is in one end from a waste pipe
Between 122 and central tube 121 pass through rear doubling, and each reverse osmosis membrane 123a group 123 after its doubling along central tube
121 circumferential volume is formed and a waste pipe after each 123 doubling of reverse osmosis membrane 123a group to the outside of multiple waste pipes 122
The intake tunnels of 122 connections, the production aquaporin that formation is connected to central tube 121 between adjacent two reverse osmosis membranes 123a group 123.
Above-mentioned membrane component 12, which is installed in shell 11 and is spaced with shell 11, to be arranged, the central tube 121 of the membrane component 12 with
Pure water mouth b connection on shell 11, multiple waste pipes 122 of membrane component 12 are connected to the waste water mouth c on shell 11, membrane component
12 intake tunnel is connected to the raw water mouth a on shell 11.
It should be noted that multiple reverse osmosis membrane 123a groups 123 are rolled up together along the circumferential direction of central tube 121 to multiple rows
When the outside of useless pipe 122, the intake tunnel that is folded to form by each reverse osmosis membrane 123a group 123 and adjacent reverse osmosis by two
The production aquaporin that diaphragm 123a group 123 collectively forms is arranged in the shape of a spiral, so set, on the one hand ensure that membrane component 12
Intake tunnel and the length for producing aquaporin, so that the intake tunnel of the membrane component 12 can accommodate more raw waters, and
Longer intake tunnel and production aquaporin can guarantee the filter efficiency of entire membrane component 12；On the other hand, each intake tunnel
One end on the outermost side is in open setting, to form the raw water inlet of intake tunnel, between shell 11 and membrane component 12
Raw water can be entered in intake tunnel by the raw water inlet of intake tunnel.Compared to by raw water inlet, membrane component 12 is set
The side that membrane component 12 is arranged in raw water inlet is made the raw water inlet of membrane component 12 bigger, allows for the film in this way by both ends
The water intake velocity of the intake tunnel of element 12 is greater than the water intake velocity of traditional membrane component 12, and the water flow velocity in intake tunnel
In the case that degree is fast, dirt and impurity are to be not easy to be deposited in intake tunnel, and this makes it possible to avoid reverse osmosis membrane 123a group
123 are blocked, and are conducive to extend the service life of membrane filter 10.
Waste water regulating valve 20 is installed on waste pipe f, and aperture is adjustable setting, the adjusting model of the waste water regulating valve 20
It encloses for 300~1500mm3, and multiple gears, the corresponding adjustable range of each gear can be set in the waste water regulating valve 20.
Specifically, the waste water regulating valve 20 be arranged six gears of A, B, C, D, E, F, and the corresponding adjustable range of A gear be 300~
The corresponding adjustable range of 500, B gears is 500~700, and so on, so set, user can be according to the feelings of local water quality
Condition voluntarily regulates and controls the gear of waste water regulating valve 20, and then user-friendly.
Controller can be single-chip microcontroller or PWM controller, not do specific restriction herein, and the controller and waste water are adjusted
Valve 20 and flowmeter 30 are electrically connected, and user can set the running parameter of water purification system by the controller, so that control
Device processed receives the parameter of the transmission of flowmeter 30, can make adjustment in time, ensure that entire water purification system 100 can be just
Often operation.
In the water purification system 100 of the present embodiment, the raw water mouth a of membrane filter 10 is connected to raw water tubes d, membrane filter 10 it is pure
Mouth of a river b is connected to pure water pipe e, and the waste water mouth c of membrane filter 10 is connected to waste pipe f；And the waste water mouth c of membrane filter 10 also passes through
Return pipe g is connected to the raw water mouth a of membrane filter 10.In view of the open amount increase in membrane filter 10, entire film is influenced whether
The leakproofness of filter core 10, in an embodiment of the present invention, one end of return pipe g are connected to the water inlet end of waste pipe f, the reflux
The other end of pipe g can be connected to the water outlet of raw water tubes d, thus eliminated and be open in membrane filter 10, and then ensure that whole
The leakproofness of a membrane filter 10.
When water purification system 100 works, raw water enters in membrane filter 10 from raw water tubes d, and by membrane filter 10
The filtering of membrane component 12 forms pure water and waste water；Pure water then passes through pure water pipe e and is discharged, so that user takes；A part of waste water is logical
It crosses waste pipe f and drains into the external world, another part is back in membrane filter 10 by return pipe g and re-starts filtering.It allows in this way
Some can drain into the external world to the waste water that the filtering raw water of membrane filter 10 generates by waste pipe f, and another part waste water can lead to
It crosses return pipe g and is back in membrane filter 10 and re-start filtering, so that the waste water discharge rate of water purification system 100 is subtracted
It is small, so that more water are filtered, improve the producing water ratio of entire water purification system 100.
And it is set to the real-time waste water discharge rate that the flowmeter 30 on waste pipe f is capable of real-time detection waste pipe f, and will inspection
It surveys result and is sent to controller；Controller, can be by real-time waste water when receiving the real-time waste water discharge rate of the transmission of flowmeter 30
Discharge rate is compared with default draining section, that is, judges whether real-time waste water discharge rate is located in default draining section.Work as reality
When waste water discharge rate be located in default draining section, then controller control waste water regulating valve 20 keeps current aperture；When real-time
Waste water discharge rate is greater than the maximum value in default draining section, that is to say, that the waste water being discharged at this time from waste pipe f is excessive, control
The aperture that device then controls waste water regulating valve 20 reduces, to reduce the wastewater flow rate being discharged from waste pipe f, so that waste pipe f
Real-time waste water discharge rate is located in default draining section, and the waste water discharge rate for avoiding water purification system 100 in this way is excessive, and leads
The problem for causing the producing water ratio of water purification system 100 too low occurs；When real-time waste water discharge rate is less than the minimum value in default draining section
When, that is to say, that the waste water being discharged at this time from waste pipe f is very few, and the aperture that controller then controls waste water regulating valve 20 increases, with
Increase the wastewater flow rate being discharged from waste pipe f, so that the real-time displacement of waste pipe f is located in default draining section, in this way
The waste water exclusion amount for avoiding water purification system 100 is very few, and leads to the impurity being mixed in waste water, dirt etc. other substances are stagnant
The problem stayed in membrane filter 10, and then cause membrane filter 10 blocked occurs.
It should be noted that it is above-mentioned it is default draining section range can be set it is larger, also can be set setting compared with
It is small, such as [10ml, 20ml] can be set by the range in default draining section, the range in default draining section can also be set
It is set to [1ml, 20ml], much is set as the range in default draining section, does not do specific restriction herein, user can root
The value in default draining section is set according to self-demand.It is detected immediately in addition, above-mentioned real-time waste water discharge rate can be flowmeter 30
As a result, being also possible to not limit specifically herein by the waste water average value of waste pipe f within a short period of time.
What the present invention was connected to by the way that waste water regulating valve 20 to be provided in the waste water mouth c of membrane filter 10 simultaneously with flowmeter 30
On waste pipe f, which is able to detect and drains into extraneous real-time wastewater flow rate by waste pipe f, and with waste water regulating valve
20 and flowmeter 30 be electrically connected controller, can according to flowmeter 30 detect real-time waste water discharge rate and default drainage area
Between between size relation control 20 aperture of waste water regulating valve, the waste water discharge rate this assures water purification system 100 is steady
Fixed, on the one hand avoid water purification system 100, to drain into extraneous wastewater flow rate excessive, and leads to the production water of water purification system 100
Rate is lower, and then appearance the problem of cause water resource to be wasted；On the other hand, additionally it is possible to water purification system 100 be avoided to drain into the external world
Wastewater flow rate it is very few, and then other substances accumulation such as lead to a large amount of impurity, dirt is in membrane filter 10, and then leads to membrane filter
The problem of 10 lost of life, occurs.
Referring to figure 3., reverse osmosis membrane 123a group 123 include reverse osmosis membrane 123a, pure water flow-guiding screen 123b and
Water inlet flow-guiding screen 123c；The front of reverse osmosis membrane 123a is in one end of reverse osmosis membrane 123a from central tube 121 and a row
Rear doubling is passed through between useless pipe 122, above-mentioned intake tunnel is formed, is formed between the reverse side of adjacent two reverse osmosis membranes 123a and produce water
Channel.Water inlet flow-guiding screen 123c is installed in intake tunnel, and raw water is logical in water inlet under the guide functions of water inlet flow-guiding screen 123c
It is flowed in road, and from intake tunnel to aquaporin infiltration is produced under the action of osmotic pressure, i.e., the raw water in intake tunnel passes through
Reverse osmosis membrane 123a, which enters, produces aquaporin formation pure water.Pure water flow-guiding screen 123b, which is installed on, to be produced in aquaporin, is produced in aquaporin
Pure water under the guide functions of pure water flow-guiding screen 123b to central tube 121 flow.
It should be noted that side of each intake tunnel far from waste pipe 122 is in open setting namely each reverse osmosis
The side of the vertical waste pipe 122 of diaphragm 123a is sealed by marine glue and is bonded；Each production aquaporin is adjacent to the one of central tube 121
Side is not sealed by marine glue viscous in the side that open setting namely adjacent two reverse osmosis membranes 123a remove neighbouring central tube 121
Outside connecing, other sides pass through marine glue and seal bonding, so that intake tunnel and production aquaporin completely cut off completely, and then avoid
Raw water in intake tunnel, which enters, to be produced in aquaporin, and it is dirty by the raw water in intake tunnel to lead to produce the pure water in aquaporin
Dye.In addition, the front of the reverse osmosis membrane 123a after doubling is in be spaced apart from each other setting, phase under the action of water inlet flow-guiding screen 123c
The reverse side of adjacent two reverse osmosis matrixs, in setting is spaced apart from each other, thus advantageously ensures that anti-under the action of pure water flow-guiding screen 123b
The filter area of diaphragm 123a is permeated, to be conducive to improve the filter efficiency of membrane component 12.
It can be timely collected into central tube 121 to guarantee that each produces the pure water in aquaporin, please refer to figure
4, which is equipped with multiple pure water blasthole 121a, and multiple pure water blasthole 121a are along the length of central tube 121
Degree direction is intervally arranged, as a result, pure water blasthole can be passed through adjacent to each position of central tube 121 by producing aquaporin
121a is flowed rapidly into central tube 121, and then is conducive to improve the production water speed of membrane filter 10.
In order to guarantee that the waste water in the intake tunnel where each waste pipe 122 can be collected in time into waste pipe 122,
Referring to figure 5., multiple waste water blasthole 122a are provided on each waste pipe 122, and multiple waste water blasthole 122a are along this
The length direction of waste pipe 122 is uniformly arranged, in this way, making each position of the neighbouring waste pipe 122 of waste water tunnel can
It is flowed rapidly into waste pipe 122 by waste water blasthole 122a, is conducive to the discharge of waste water in membrane filter 10, it is stagnant to avoid waste water
Staying leads to impurity fouling in reverse osmosis membrane 123a group 123 in waste water in the overlong time in intake tunnel, Jin Erying
Ring the filter effect of reverse osmosis membrane 123a group 123.
In view of the water quality of each department is different, this allows for the water purification system 100 in different regions in use, water purification system
100 producing water ratio can be different, and the waste water discharge rate that will lead to water purification system 100 in this way is not also identical.In order to facilitate water purification system
100 regulation waste water discharge rate of system, in one embodiment of this invention, which further includes TDS detector 30, can
It is installed on raw water tubes d or waste pipe f or return pipe g；Controller and TDS detector 30 are electrically connected, and are detected according to TDS
The work of the testing result control waste water regulating valve 20 of device 30.
When TDS detector 30 is installed on raw water tubes d, the TDS detector 30 can be used to detect by raw water tubes d into
Enter the real-time raw water TDS value to membrane filter 10, and TDS detector 30 can will test result and timely feedback to controller；Control
Device processed, can be by real-time raw water TDS value and the first default section TDS when receiving the real-time raw water TDS value of TDS detector transmission
It is compared.When real-time raw water TDS value is located in the first default section TDS, controller does not adjust the big of the first default section TDS
It is small.When real-time raw water TDS value is greater than the maximum value in the first default section TDS, that is to say, that the water quality of raw water is poor, at this time
Controller increases the maximum value in default draining section and minimum value, and this assures the discharges of the waste water of water purification system 100
Increase is measured, is easy accumulation in membrane filter 10, in turn so as to avoid other substances such as mixing impurity, dirts in water
The problem for causing membrane filter 10 blocked occurs.When the minimum value in the real-time raw water TDS value section TDS default less than first,
That is the water quality of raw water is preferable, controller reduces the maximum value in default draining section and minimum value at this time, thus makes
Obtaining the raw water entered in membrane filter 10 can adequately be filtered, and then reduce the waste water discharge of entire water purification system 100
Amount, improves the producing water ratio of water purification system 100.
It should be noted that becoming into the raw water quality moment in water purification system 100, TDS is set on raw water tubes d and is examined
The water quality that device 30 is capable of real-time detection raw water is surveyed, controller regulates and controls the pre- of water purification system according to the testing result of TDS detector 30
If draining section, it ensure that water purification system 100 can maximumlly utilize raw water in this way, improve the production of water purification system 100
Water rate, and can also ensure that the service life of water purification system 100, avoid impurity, dirt that membrane filter 10 is mixed in water
Other substances blockings such as dirt.
When TDS detector 30 is installed on waste pipe f, which can be used to detect to arrange by waste pipe f
To extraneous real-time waste water TDS value, and TDS detector 30 can will test result and timely feedback to controller；Controller is connecing
Real-time waste water TDS value, can be compared by the real-time waste water TDS value for receiving the transmission of TDS detector with the second default section TDS.
When real-time waste water TDS value is located in the second default section TDS, controller does not adjust the size in the second default section TDS then.Work as reality
When waste water TDS value be greater than the second default section TDS maximum value when, that is to say, that the water quality of waste water is poor, at this time controller will
The maximum value and minimum value in default draining section increase, and this assures the waste water discharge rates of water purification system 100 to be increased
Greatly, to reduce the wastewater flow rate being back in membrane filter 10 by return pipe g, so avoid mixing impurity in water,
Other substances such as dirt are easy accumulation in membrane filter 10, and the problem for causing membrane filter 10 blocked occurs.When real-time waste water
When the minimum value in the TDS value section TDS default less than second, that is to say, that the water quality of waste water is preferable, and controller is by default row at this time
Maximum value and minimum value between pool reduce, and the waste water for allowing for generating when membrane filter 10 filters so largely passes through reflux
Pipe g is back to membrane filter 10 and re-starts filtering, so that can adequately be filtered into the raw water in membrane filter 10,
And then reduce the waste water discharge rate of entire water purification system 100, improve the producing water ratio of water purification system 100.
It should be noted that the waste water that membrane filter 10 generates when filtering is repeated as many times to be back in membrane filter 10 and be filtered
Afterwards, the TDS value of waste water can be made to increase, and the TDS detector 30 being installed on waste pipe f is able to detect from waste pipe f and drains into
Extraneous real-time waste water TDS value, once TDS detector 30 detects that draining into extraneous real-time waste water TDS value from waste pipe f increases
Greatly, controller immediately increases default draining section, at the same time also increases the aperture of waste water regulating valve 20, so that high
The waste water of TDS value is discharged in time, avoids other substances such as impurity, the dirt that membrane filter 10 is blended in waste water in this way
It blocks.
When TDS detector 30 is installed on return pipe g, which can be used to detect to return by return pipe g
It is flow to the real-time reflux waste water TDS value of the reflux waste water in membrane filter 10, and to will test result anti-in time for TDS detector 30
It feeds controller；Controller is in the real-time reflux waste water TDS value for receiving the transmission of TDS detector, and will can flow back in real time waste water TDS
Value is preset the section TDS with third and is compared.When in real time, reflux waste water TDS value is located in the default section TDS of third, and controller is then
The size that third presets the section TDS is not adjusted.When reflux waste water TDS value is greater than the maximum value in the default section TDS of third in real time,
That is, the water quality of reflux waste water is poor, controller increases the maximum value in default draining section and minimum value at this time, this
Sample ensures that the waste water discharge rate of water purification system 100 is increased, and is back to membrane filter 10 by return pipe g to reduce
Interior reflux wastewater flow rate, and then avoid other substances such as mixing impurity, dirt in water and be easy accumulation in membrane filter 10,
And the problem for causing membrane filter 10 blocked occurs.When in real time, reflux waste water TDS value is less than the minimum value that third presets the section TDS
When, that is to say, that the water quality for the waste water that flows back is preferable, and controller subtracts the maximum value in default draining section and minimum value at this time
It is small, namely reduce the waste water discharge rate of water purification system 100, it is largely logical that the waste water generated when membrane filter 10 filters is allowed in this way
It crosses return pipe g and is back to membrane filter 10 and re-start filtering, so that can be obtained sufficiently into the raw water in membrane filter 10
Filtering, and then reduce the waste water discharge rate of entire water purification system 100, improve the producing water ratio of water purification system 100.
It should be noted that the waste water that membrane filter 10 generates when filtering is repeated as many times to be back in membrane filter 10 and be filtered
Afterwards, the TDS value of waste water can be made to increase, and the TDS detector 30 being installed on return pipe g is able to detect and is returned by return pipe g
It is flow to the real-time reflux waste water TDS value of the reflux waste water in membrane filter 10, once TDS detector 30 detects reflux waste water in real time
TDS value increases, and controller immediately increases default draining section, at the same time also increases the aperture of waste water regulating valve 20, with
So that the waste water of high TDS value is discharged in time, to reduce the wastewater flow rate being back in membrane filter 10, and then membrane filtration is avoided
Core 10 is blended in the closure of other substances such as impurity, dirt in waste water.
Further, above-mentioned TDS detector 30 is installed on return pipe g, controls the waste water of water purification system 100 for convenience
Regurgitant volume, in one embodiment of this invention, the water purification system 100 further include the return of waste water valve being electrically connected with controller
40, the aperture for the TDS value control return of waste water valve 40 that controller is detected also according to TDS detector 30.
Specifically, when minimum value of the real-time reflux waste water TDS value that TDS detector 30 detects less than the 4th section TDS,
That is the waste water quality that the filtering of membrane filter 10 generates is relatively good, and controller is by the default draining section of waste pipe f at this time
While reduction, also the aperture of return of waste water valve 40 is increased, allows for the big portion of waste water generated when membrane filter 10 filters in this way
Divide and be back in membrane filter 10 and be filtered again, to reduce the waste water discharge rate of water purification system 100, is conducive to improve
The producing water ratio of water purification system 100.When the real-time reflux waste water TDS value that TDS detector 30 detects is greater than the maximum in the 4th section TDS
When value, that is to say, that the waste water quality that membrane filter 10 generates when filtering is poor, i.e., dirt, the impurity mixed in waste water is excessive, this
When controller while the default draining section of waste pipe f is increased, also the aperture of return of waste water valve 40 is reduced, such one
Aspect ensure that the waste water of the filtering production water of membrane filter 10 can be discharged in time, on the other hand also avoid production when membrane filter 10 filters
Raw waste water is back in membrane filter 10 by return pipe g, and then membrane filter 10 is caused to be blocked by other substances such as dirt, impurity
The problem of occur.
It should be noted that water purification system 100 is after a period of use, can be retained in the membrane filter 10 of water purification system 100
Some impurity, dirt etc., in order to avoid the membrane filter 10 of water purification system 100 is blocked, in one embodiment of this invention, control
Device processed water purification system 100 after a period of use, control return of waste water valve 40 close so that entering membrane filtration from raw water tubes d
After water in core 10 rinses the membrane component 12 in membrane filter 10, directly it is discharged from waste pipe f.
Specifically, flowmeter 30, which is also used to detect, drains into extraneous waste water discharge total amount by waste pipe f, and will test
Waste water discharge total amount is sent to controller, and waste water discharge total amount and default waste water discharge rate are made quotient by controller, if result is whole
Number, then controller control return of waste water valve 40 closes the first preset duration, allows for the raw water energy entered in membrane filter 10 in this way
It is enough that first preset duration is rinsed to membrane filter 10, at this point, be attached to the impurity on the membrane component 12 of membrane filter 10, dirt etc. other
Substance is rushed out under the flushing of raw water, avoids the membrane component 12 in membrane filter 10 in this way by its substance such as impurity, dirt
Blocking, and then ensure the production water speed of membrane filter 10.
It should say, above controller controls return of waste water valve 40 and closes the first preset duration, can pass through timing electricity
Road or timer realize that for those skilled in the art, this is mature technological means, just no longer superfluous herein
It states.
In order to guarantee the water intake velocity of water purification system 100 and produce water speed, in one embodiment of this invention, the water purification system
System 100 further includes the booster pump 45 being electrically connected with controller, which is installed on raw water tubes d, is mainly used for pair
Raw water pressurization in raw water tubes d, so set, ensure that the hydraulic pressure flowed into membrane filter 10 from raw water tubes d is sufficiently high, Jin Eryou
Conducive to the speed for improving 10 Pure-water Making of membrane filter.
It should be noted that water purification system 100 is filtered every time when completing, the hydraulic pressure of the water retained in membrane filter 10 is lower than
The hydraulic pressure required when filtering of membrane filter 10 needs first pressure accumulation when this allows for membrane filter 10 next time of filtering, and pressure accumulation needs centainly
Time, thus extend the water intaking time of user, influence the experience of user.In order to shorten the water intaking time of user, at this
Invention an embodiment in, controller also membrane filter 10 complete filter when, control return of waste water valve 40, waste water regulating valve 20 with
And booster pump 45 is successively successively closed, to carry out pressure maintaining to membrane filter 10, this avoid water purification systems 100 to open next time
When, the membrane filter 10 of water purification system 100 need pressure accumulation for a period of time after could Pure-water Making the problem of appearance.
Specifically, controller control return of waste water valve 40 is first closed, and controls booster pump when membrane filter 10 is completed to filter
45 and waste water regulating valve 20 open so that the high pressure raw water in raw water tubes d is rinsed membrane filter 10.Due to waste pipe f
It is shown in a fully open operation, allows for flowing out from waste pipe f from the raw water that raw water tubes d enters in membrane filter 10 is most of in this way, it is high
Pressure high speed raw water the impurity retained in membrane filter 10, dirt can be taken out of, avoid in this way membrane filter 10 by impurity,
Dirt is blocked, and the service life of membrane filter 10 is conducive to extend.
And controller, when the flushing duration of membrane filter 10 reaches the second preset duration, control waste water regulating valve 20 is closed
It closes, to carry out pressure maintaining to membrane filter 10；10 water inlets of membrane filter at this time are not discharged, and the raw water in raw water tubes d is in booster pump 45
It flows, is allowed in membrane filter 10 in this way full of high pressure water into membrane filter 10 under driving.It is up to when the pressure maintaining of membrane filter 10
When to third preset duration, controller controls booster pump 45 and closes, and the booster pump 45 of closing is equivalent to the valve of a closing, this
When sample allows for water purification system 100 and stops working, high pressure raw water is also full of in membrane filter 10 always；When water purification system 100 lower one
When secondary unlatching Pure-water Making, due to being filled with high pressure raw water in membrane filter 10,100 Pure-water Making of water purification system is allowed in this way
When, membrane filter 10 without pressure accumulation can Pure-water Making namely water purification system 100 open when, membrane filter 10 can be prepared by pure water, this
Sample just shortens the time of user's waiting, is conducive to the experience for improving user.
It should say, above controller controls return of waste water valve 40 and closes the second preset duration, controls waste water regulating valve
20 close third preset duration, can be realized by timing circuit or timer, come for those skilled in the art
It says, this is mature technological means, and details are not described herein again.
Further, above-mentioned booster pump 45 be freq uency conversion supercharging pump 45, due to freq uency conversion supercharging pump 45 revolving speed be it is adjustable, this is just
So that the raw water water intake velocity of water inlet system is adjustable.Specifically, being less than in the real-time waste water discharge rate that flowmeter 30 detects
When the minimum value in default draining section, namely when entering the former water shortage in membrane filter 10, controller turns booster pump 45
Speed increases, and when the revolving speed of booster pump 45 increases, will increase in the same period by the raw water water of booster pump 45, this just makes
It obtains the raw water water entered in membrane filter 10 to increase, not only ensures the efficiency of 10 Pure-water Making of membrane filter in this way, while also keeping away
Exempted from because the raw water entered in membrane filter 10 is very few, and impurity, dirt etc. in the waste water for causing the filtering of membrane filter 10 to be formed its
His substance is stranded in the appearance of the problem in membrane filter 10.Detect that real-time waste water discharge rate is greater than default drainage area in flowmeter 30
Between maximum value when, namely enter the former hypervolia in membrane filter 10, controller reduces the revolving speed of booster pump 45 at this time, when
, can be less by the raw water water of booster pump 45 in the same period when revolving speed of booster pump 45 reduces, it allows for entering in this way
Raw water discharge reduction in membrane filter 10, so that the rate of filtration of membrane filter 10 is slowed down, so that the original in membrane filter 10
Water energy accesses sufficient filtering, is conducive to the utilization rate for improving raw water.
Further, the water outlet of return pipe g is connected to the raw water tubes d for being located at 45 influent side of booster pump.So set,
So that the booster pump 45 can also provide a driving force for the waste water of reflux, thus have convenient for return of waste water in waste pipe f
Into raw water tubes d.
Further, which further includes the inlet water solenoid valve 50 being electrically connected with controller, the water inlet electromagnetism
Valve 50 is installed on the influent side on raw water tubes d and being located at booster pump 45, which is used to control the logical of raw water tubes d
It is disconnected.I.e. controller is used in 100 Pure-water Making of water purification system, and control inlet water solenoid valve 50 is opened, and is stopped in water purification system 100
When work, control inlet water solenoid valve 50 is closed.And the setting of the inlet water solenoid valve 50 is ensured positioned at 45 influent side of booster pump
There is water in the water pipe of water outlet side, when starting work so as to avoid water purification system 100, the case where booster pump 45 dallies
Occur, and then is effectively protected booster pump 45.
Further, which further includes the second pressure switch 60 being installed on pure water pipe e, controller with
Second pressure switch 60 is electrically connected, and hydraulic pressure value of the controller for detecting in second pressure switch 60 is less than second
When default hydraulic pressure value, controls booster pump 45 and return of waste water valve 40 is opened, namely control 100 Pure-water Making of water purification system；The control
Device processed controls booster pump 45 and waste water returns when pressure detection switch detects that hydraulic pressure value is greater than or equal to the second default hydraulic pressure value
Valve 40 is flowed to close.
Specifically, since pure water is flowed to water outlet, allowing for the second pressure in this way when the water outlet of pure water pipe e is opened
Pressure reduction at power switch 60 shows that user needs to use water, at this time controller control booster pump 45 and return of waste water valve 40
It opens, namely starting 100 Pure-water Making of water purification system.When the water outlet of pure water pipe e is closed, the pure water in membrane filter 10 at this time
It can continue to flow to the water outlet of pure water pipe e, until being full of entire pure water pipe e, the pressure allowed in pure water pipe e in this way increases,
When second pressure switch 60 detects that the hydraulic pressure value in pure water pipe e increases to the second default hydraulic pressure value, controller controls waste water
Return valve 40 and booster pump 45 are closed.
In one embodiment of this invention, which further includes that the first pressure being electrically connected with controller is opened
55 are closed, is installed on raw water tubes d and for detecting the hydraulic pressure value in raw water tubes d；Controller is then according to first pressure switch 55
Testing result, control first pressure switch 55 open/close.
Specifically, when the hydraulic pressure value that first pressure switch 55 detects is higher than the first default hydraulic pressure value, controller control at this time
First pressure switch 55 processed is opened, so that the water energy in raw water tubes d enough enters in membrane filter 10；When first pressure switch 55 is examined
When the hydraulic pressure value of survey is lower than the first default hydraulic pressure value, the first pressure switch 55 of controller control at this time is closed, so that in raw water tubes d
Cannot enter in membrane filter 10.It should be noted that the first default hydraulic pressure value is that membrane filter 10 is required minimum when filtering
Hydraulic pressure value, if not only will affect the filter efficiency of membrane filter 10 in this way, together when too low into the raw water hydraulic pressure value in membrane filter 10
When hydraulic pressure it is too low can raw water to also result in the water flowing speed in membrane filter 10 slower, allow for being blended in raw water in this way
Other substances such as impurity, dirt are stranded in membrane filter 10, and then the problem hair for causing the membrane component 12 in membrane filter 10 blocked
It is raw.
In one embodiment of this invention, which further includes the first check valve 70, first check valve 70 string
It is connected to water inlet end or the water outlet of return of waste water valve 40.I.e. the water inlet end of the first check valve 70 can with return of waste water valve 40 go out
Water end (W.E.) connection, the water outlet of the first check valve 70 is connected to raw water tubes d；Or first check valve 70 water inlet end and waste pipe f
Connection, the water outlet of the first check valve 70 is connected to the water inlet end of return of waste water valve 40, how to pacify at this to the first check valve 70
Dress, does not do specific restriction.It is understood that the first check valve 70 can only one-way conduction, allowed in raw water tubes d in this way
Raw water can not be flowed directly into waste pipe f by the pipeline where the first check valve 70 and return of waste water valve 40, and then be ensured
Waste water in waste pipe f can smoothly be flowed from the water inlet end of return of waste water valve 40 to the water outlet of return of waste water valve 40, and
It is flowed into membrane filter 10 by raw water tubes d and re-starts filtering, be conducive to the producing water ratio for improving water purification system 100 in this way.
In one embodiment of this invention, which further includes front filter element 75, the water inlet of the front filter element 75
Mouth is connected to water source, and the water outlet of the water purification system 100 is connected to the water inlet end of raw water tubes d.The front filter element 75 can be PP
Cotton filter core, active carbon filter core or other filter cores with pure water function, do not do specific restriction herein.It is set before raw water tubes d
Front filter element 75 is set, this makes it possible to effectively filter out large granular impurity in raw water, and then avoids granule foreign in raw water
The problem for being attached on the membrane component 12 of membrane filter 10, and causing membrane component 12 blocked occurs.
Preferably, above-mentioned front filter element 75 is P composite filter element, which includes non-woven fabrics, carbon fiber and PP cotton three
Layer is compounded to form, i.e. the P composite filter element set function of carbon fiber filter core and PP cotton filter element, namely can replace with a filter core
Two filter cores, which reduces the quantity of front filter element 75, so that installation space required for entire water purification system 100
It is smaller.
In one embodiment of this invention, which further includes postposition filter core 80, the water inlet of the postposition filter core 80
Mouth is connect with the water outlet of pure water pipe e, and the water outlet of the postposition filter core 80 is connected to external water inlet.The postposition filter core 80 can be with
It is active carbon filter core, active carbon filter core can remove chlorine residue, the peculiar smell etc. in water removal, together mainly using active carbon as primary raw material
When can also improve the mouthfeel of water, and then be conducive to promoted user experience.
Further, which further includes the second one-way valve 85 being electrically connected with controller, second one-way valve
85 are installed in the outer water tube being connected to the water outlet of postposition filter core 80, and controller is used for the control when external water inlet is closed
Second one-way valve 85 processed is closed, and avoids to be back in postposition filter core 80 from the water that postposition filter core 80 flows out in this way.
In one embodiment of this invention, which further includes UV sterilizing tap 90, is installed on pure water pipe
The water outlet of e.When user needs to take pure water, openable UV sterilizing tap 90, the pure water in membrane filter 10 flows through UV and kills
When bacterium tap 90, UV sterilizing tap 90 can effectively sterilize pure water, and the bacterium allowed in pure water in this way is equal
It is killed, and then ensures that the pure water that user gets is clean, safe.
The present invention also proposes a kind of control method of water purification system, please refers to Fig. 6, and Fig. 6 shows water purification system of the invention
The flow diagram of the first embodiment of the control method of system.
The control method of the water purification system the following steps are included:
Step S40 obtains the real-time waste water discharge rate of membrane filter
Step S50 then will be described useless in real time when the real-time waste water discharge rate is greater than the maximum value in default draining section
Water discharge rate reduces.
Step S60 then will be described useless in real time when the real-time waste water discharge rate is less than the minimum value in default draining section
Water discharge rate increases.
Fig. 1 is please referred to, which (does not scheme including membrane filter 10, waste water regulating valve 20, flowmeter 30, controller
Show), pipeline and other component.
Please with reference to Fig. 2, which includes shell 11 and membrane component 12；Shell 11 is equipped with raw water mouth a, pure water
Mouth b and waste water mouth c.It should be noted that raw water mouth a, the pure water mouth b and waste water mouth c on shell 11 can be set in shell
The same end of body 11, can also be divided into two opposite ends of shell 11, or be divided into 11 other positions of shell.At this to shell
Specific restriction is not done in the position of raw water mouth a, pure water mouth b and waste water mouth c setting on 11.
Membrane component 12 includes central tube 121, multiple waste pipes 122 and multiple reverse osmosis membrane 123a groups 123, Duo Gepai
Useless being provided at circumferentially spaced along central tube 121 of pipe 122, each reverse osmosis membrane 123a group 123 is in one end from a waste pipe
Between 122 and central tube 121 pass through rear doubling, and each reverse osmosis membrane 123a group 123 after its doubling along central tube
121 circumferential volume is formed and a waste pipe after each 123 doubling of reverse osmosis membrane 123a group to the outside of multiple waste pipes 122
The intake tunnels of 122 connections, the production aquaporin that formation is connected to central tube 121 between adjacent two reverse osmosis membranes 123a group 123.
Above-mentioned membrane component 12, which is installed in shell 11 and is spaced with shell 11, to be arranged, the central tube 121 of the membrane component 12 with
Pure water mouth b connection on shell 11, multiple waste pipes 122 of membrane component 12 are connected to the waste water mouth c on shell 11, membrane component
12 intake tunnel is connected to the raw water mouth a on shell 11.
It should be noted that multiple reverse osmosis membrane 123a groups 123 are rolled up together along the circumferential direction of central tube 121 to multiple rows
When the outside of useless pipe 122, the intake tunnel that is folded to form by each reverse osmosis membrane 123a group 123 and adjacent reverse osmosis by two
The production aquaporin that diaphragm 123a group 123 collectively forms is arranged in the shape of a spiral, so set, on the one hand ensure that membrane component 12
Intake tunnel and the length for producing aquaporin, so that the intake tunnel of the membrane component 12 can accommodate more raw waters, and
Longer intake tunnel and production aquaporin can guarantee the filter efficiency of entire membrane component 12；On the other hand, each intake tunnel
One end on the outermost side is in open setting, to form the raw water inlet of intake tunnel, between shell 11 and membrane component 12
Raw water can be entered in intake tunnel by the raw water inlet of intake tunnel.Compared to by raw water inlet, membrane component 12 is set
The side that membrane component 12 is arranged in raw water inlet is made the raw water inlet of membrane component 12 bigger, allows for the film in this way by both ends
The water intake velocity of the intake tunnel of element 12 is greater than the water intake velocity of traditional membrane component 12, and the water flow velocity in intake tunnel
In the case that degree is fast, dirt and impurity are to be not easy to be deposited in intake tunnel, and this makes it possible to avoid reverse osmosis membrane 123a group
123 are blocked, and are conducive to extend the service life of membrane filter 10.
Waste water regulating valve 20 is installed on waste pipe f, and aperture is adjustable setting, the adjusting model of the waste water regulating valve 20
It encloses for 300~1500mm3, and multiple gears, the corresponding adjustable range of each gear can be set in the waste water regulating valve 20.
Specifically, the waste water regulating valve 20 be arranged six gears of A, B, C, D, E, F, and the corresponding adjustable range of A gear be 300~
The corresponding adjustable range of 500, B gears is 500~700, and so on, so set, user can be according to the feelings of local water quality
Condition voluntarily regulates and controls the gear of waste water regulating valve 20, and then user-friendly.
Controller can be single-chip microcontroller or PWM controller, not do specific restriction herein, and the controller and waste water are adjusted
Valve 20 and flowmeter 30 are electrically connected, and user can set the running parameter of water purification system by the controller, so that control
Device processed receives the parameter of the transmission of flowmeter 30, can make adjustment in time, ensure that entire water purification system 100 can be just
Often operation.
In the water purification system 100 of the present embodiment, the raw water mouth a of membrane filter 10 is connected to raw water tubes d, membrane filter 10 it is pure
Mouth of a river b is connected to pure water pipe e, and the waste water mouth c of membrane filter 10 is connected to waste pipe f；And the waste water mouth c of membrane filter 10 also passes through
Return pipe g is connected to the raw water mouth a of membrane filter 10.In view of the open amount increase in membrane filter 10, entire film is influenced whether
The leakproofness of filter core 10, in an embodiment of the present invention, one end of return pipe g are connected to the water inlet end of waste pipe f, the reflux
The other end of pipe g can be connected to the water outlet of raw water tubes d, thus eliminated and be open in membrane filter 10, and then ensure that whole
The leakproofness of a membrane filter 10.
When water purification system 100 works, raw water enters in membrane filter 10 from raw water tubes d, and by membrane filter 10
The filtering of membrane component 12 forms pure water and waste water；Pure water then passes through pure water pipe e and is discharged, so that user takes；A part of waste water is logical
It crosses waste pipe f and drains into the external world, another part is back in membrane filter 10 by return pipe g and re-starts filtering.It allows in this way
Some can drain into the external world to the waste water that the filtering raw water of membrane filter 10 generates by waste pipe f, and another part waste water can lead to
It crosses return pipe g and is back in membrane filter 10 and re-start filtering, so that the waste water discharge rate of water purification system 100 is subtracted
It is small, so that more water are filtered, improve the producing water ratio of entire water purification system 100.
And it is set to the real-time waste water discharge rate that the flowmeter 30 on waste pipe f is capable of real-time detection waste pipe f, and will inspection
It surveys result and is sent to controller；Controller, can be by real-time waste water when receiving the real-time waste water discharge rate of the transmission of flowmeter 30
Discharge rate is compared with default draining section, that is, judges whether real-time waste water discharge rate is located in default draining section.If real
When waste water discharge rate be located in default draining section, then controller control waste water regulating valve 20 keeps current aperture；If in real time
Waste water discharge rate is greater than the maximum value in default draining section, that is to say, that the waste water being discharged at this time from waste pipe f is excessive, control
The aperture that device then controls waste water regulating valve 20 reduces, to reduce the wastewater flow rate being discharged from waste pipe f, so that waste pipe f
Real-time waste water discharge rate is located in default draining section, and the waste water discharge rate for avoiding water purification system 100 in this way is excessive, and leads
The problem for causing the producing water ratio of water purification system 100 too low occurs；If real-time waste water discharge rate is less than the minimum value in default draining section
When, that is to say, that the waste water being discharged at this time from waste pipe f is very few, and the aperture that controller then controls waste water regulating valve 20 increases, with
Increase the wastewater flow rate being discharged from waste pipe f, so that the real-time displacement of waste pipe f is located in default draining section, in this way
The waste water exclusion amount for avoiding water purification system 100 is very few, and leads to the impurity being mixed in waste water, dirt etc. other substances are stagnant
The problem stayed in membrane filter 10, and then cause membrane filter 10 blocked occurs.
It should be noted that it is above-mentioned it is default draining section range can be set it is larger, also can be set setting compared with
It is small, such as [10ml, 20ml] can be set by the range in default draining section, the range in default draining section can also be set
It is set to [1ml, 20ml], much is set as the range in default draining section, does not do specific restriction herein, user can root
The value in default draining section is set according to self-demand.It is detected immediately in addition, above-mentioned real-time waste water discharge rate can be flowmeter 30
As a result, being also possible to not limit specifically herein by the waste water average value of waste pipe f within a short period of time.
The present invention is by the real-time waste water discharge rate of monitoring membrane filter 10, and by real-time waste water discharge rate and default drainage area
Between be compared, when real-time waste water discharge rate is greater than the maximum value in default draining section, then real-time waste water discharge rate is reduced；When
When real-time waste water discharge rate is less than the minimum value in default draining section, then real-time waste water discharge rate is increased.It ensures that in this way
The real-time waste water discharge rate of water purification system is stable, so that on the one hand avoiding water purification system drains into extraneous wastewater flow rate mistake
It is more, and cause the producing water ratio of water purification system lower, and then appearance the problem of cause water resource to be wasted；On the other hand, additionally it is possible to
The accumulation of other substances such as water purification system is avoided to drain into extraneous wastewater flow rate very few, and then leads to a large amount of impurity, dirt in membrane filtration
In-core, and then appearance the problem of lead to the lost of life of membrane filter.
In one embodiment of this invention, Fig. 7 is please referred to, the control method of the water purification system is further comprising the steps of:
Step S10 obtains the real-time raw water TDS value of the membrane filter.
Step S20 then will be described default when the real-time raw water TDS value is greater than the maximum value in the first default section TDS
The minimum value and maximum value for draining section increase simultaneously.
Step S30 then will be described default when the maximum value in the real-time raw water TDS value section TDS default less than first
The minimum value and maximum value for draining section reduce simultaneously.
Specifically, can be used to detect to enter to film by raw water tubes d when TDS detector 30 is installed on raw water tubes d
Real-time raw water TDS value in filter core 10, and TDS detector 30 can will test result and timely feedback to controller；Controller exists
When receiving the real-time raw water TDS value of TDS detector transmission, real-time raw water TDS value and the first default section TDS can be compared
Compared with.When real-time raw water TDS value is located in the first default section TDS, controller does not adjust the size in the first default section TDS.When
When real-time raw water TDS value is greater than the maximum value in the first default section TDS, that is to say, that the water quality of raw water is poor, at this time controller
The maximum value in default draining section and minimum value are increased, this assures the waste water discharge rates of water purification system 100 to obtain
Increase, is easy accumulation in membrane filter 10 so as to avoid other substances such as mixing impurity, dirts in water, and then lead to film
The blocked problem of filter core 10 occurs.When the minimum value in the real-time raw water TDS value section TDS default less than first, that is to say, that
The water quality of raw water is preferable, and controller reduces the maximum value in default draining section and minimum value at this time, allows for entering in this way
Raw water in membrane filter 10 can be filtered adequately, and then reduce the waste water discharge rate of entire water purification system 100, be improved
The producing water ratio of water purification system 100.
It should be noted that becoming into the raw water quality moment in water purification system 100, TDS is set on raw water tubes d and is examined
The water quality that device 30 is capable of real-time detection raw water is surveyed, controller regulates and controls the pre- of water purification system according to the testing result of TDS detector 30
If draining section, it ensure that water purification system 100 can maximumlly utilize raw water in this way, improve the production of water purification system 100
Water rate, and can also ensure that the service life of water purification system 100, avoid impurity, dirt that membrane filter 10 is mixed in water
Other substances blockings such as dirt.
Obviously, in another embodiment of the invention, default draining can also be regulated and controled by obtaining real-time waste water TDS value
The size in section, the specific steps are as follows:
Step S10 ' obtains the real-time waste water TDS value of the membrane filter；
Step S20 ' then will be described pre- when the real-time waste water TDS value is greater than the maximum value in the second default section TDS
If the minimum value and maximum value that drain section increase simultaneously
Step S30 ' then will be described pre- when the maximum value in the real-time waste water TDS value section TDS default less than second
If the minimum value and maximum value that drain section reduce simultaneously.
Specifically, can be used to detect to drain into the external world by waste pipe f when TDS detector 30 is installed on waste pipe f
Real-time waste water TDS value, and TDS detector 30 can will test result and timely feedback to controller；Controller is receiving TDS
Real-time waste water TDS value, can be compared by the real-time waste water TDS value that detector is sent with the second default section TDS.It is useless when in real time
Water TDS value is located in the second default section TDS, and controller does not adjust the size in the second default section TDS then.When real-time waste water
When TDS value is greater than the maximum value in the second default section TDS, that is to say, that the water quality of waste water is poor, and controller is by default row at this time
Maximum value and minimum value between pool increase, and this assures the waste water discharge rates of water purification system 100 to be increased, thus
The wastewater flow rate being back in membrane filter 10 by return pipe g is reduced, and then avoids mixing impurity, dirt in water etc. it
His substance is easy accumulation in membrane filter 10, and the problem for causing membrane filter 10 blocked occurs.When real-time waste water TDS value is less than
When the minimum value in the second default section TDS, that is to say, that the water quality of waste water is preferable, and controller is by default draining section at this time
Maximum value and minimum value reduce, and the waste water for allowing for generating when membrane filter 10 filters so largely passes through return pipe g and flows back
Filtering is re-started to membrane filter 10, so that can adequately be filtered into the raw water in membrane filter 10, and then is subtracted
The waste water discharge rate for having lacked entire water purification system 100, improves the producing water ratio of water purification system 100.
It should be noted that the waste water that membrane filter 10 generates when filtering is repeated as many times to be back in membrane filter 10 and be filtered
Afterwards, the TDS value of waste water can be made to increase, and the TDS detector 30 being installed on waste pipe f is able to detect from waste pipe f and drains into
Extraneous real-time waste water TDS value, once TDS detector 30 detects that draining into extraneous real-time waste water TDS value from waste pipe f increases
Greatly, controller immediately increases default draining section, at the same time also increases the aperture of waste water regulating valve 20, so that high
The waste water of TDS value is discharged in time, avoids other substances such as impurity, the dirt that membrane filter 10 is blended in waste water in this way
It blocks.
In addition, in other embodiments of the invention, it can also be useless by obtaining the real-time reflux being back in membrane filter
Water TDS value regulates and controls the default draining section of water purification system, the specific steps are as follows:
Step S10 ' ' obtains the real-time reflux waste water TDS value being back in the membrane filter；
Step S20 ' ', when the real-time reflux waste water TDS value, which is greater than third, presets the maximum value in the section TDS, then by institute
It states the default minimum value for draining section and maximum value while increasing.
Step S30 ' ', when the real-time reflux waste water TDS value, which is less than third, presets the minimum value in the section TDS, then by institute
It states the default minimum value for draining section and maximum value while reducing.
When TDS detector 30 is installed on return pipe g, it can be used to detect to be back to membrane filter 10 by return pipe g
The real-time reflux waste water TDS value of interior reflux waste water, and TDS detector 30 can will test result and timely feedback to controller；
For controller in the real-time reflux waste water TDS value for receiving the transmission of TDS detector, the waste water TDS value that will can flow back in real time is pre- with third
If the section TDS is compared.When in real time, reflux waste water TDS value is located in the default section TDS of third, and controller does not adjust third then
The size in the default section TDS.When reflux waste water TDS value is greater than the maximum value in the default section TDS of third in real time, that is to say, that
The water quality of reflux waste water is poor, and controller increases the maximum value in default draining section and minimum value at this time, ensures in this way
The waste water discharge rate of water purification system 100 is increased, to reduce the reflux being back in membrane filter 10 by return pipe g
Wastewater flow rate, and then avoid other substances such as mixing impurity, dirt in water and be easy accumulation in membrane filter 10, and lead to film
The blocked problem of filter core 10 occurs.When reflux waste water TDS value is less than the minimum value in the default section TDS of third in real time, also
It is to say, the water quality for the waste water that flows back is preferable, and controller reduces the maximum value in default draining section and minimum value at this time, namely subtracts
The waste water discharge rate of small water purification system 100, the waste water for allowing for generating when membrane filter 10 filters so largely pass through return pipe g
It is back to membrane filter 10 and re-starts filtering, so that can adequately be filtered into the raw water in membrane filter 10, into
And reduce the waste water discharge rate of entire water purification system 100, improve the producing water ratio of water purification system 100.
It should be noted that the waste water that membrane filter 10 generates when filtering is repeated as many times to be back in membrane filter 10 and be filtered
Afterwards, the TDS value of waste water can be made to increase, and the TDS detector 30 being installed on return pipe g is able to detect and is returned by return pipe g
It is flow to the real-time reflux waste water TDS value of the reflux waste water in membrane filter 10, once TDS detector 30 detects reflux waste water in real time
TDS value increases, and controller immediately increases default draining section, at the same time also increases the aperture of waste water regulating valve 20, with
So that the waste water of high TDS value is discharged in time, to reduce the wastewater flow rate being back in membrane filter 10, and then membrane filtration is avoided
Core 10 is blended in the closure of other substances such as impurity, dirt in waste water.
In one embodiment of this invention, Fig. 8 is please referred to, the control method of the water purification system 100 is further comprising the steps of:
Step S70 obtains the real-time reflux waste water TDS value being back in the membrane filter
Step S80 will then be back to institute when the real-time reflux waste water TDS value is greater than the maximum value in the 4th section TDS
The reflux wastewater flow rate stated in membrane filter reduces.
Step S90 will then be back to institute when minimum value of the real-time reflux waste water TDS value less than the 4th section TDS
The reflux wastewater flow rate stated in membrane filter increases.
Specifically, when minimum value of the real-time reflux waste water TDS value that TDS detector 30 detects less than the 4th section TDS,
That is the waste water quality that the filtering of membrane filter 10 generates is relatively good, and controller is by the default draining section of waste pipe f at this time
While reduction, also the aperture of return of waste water valve 40 is increased, allows for the big portion of waste water generated when membrane filter 10 filters in this way
Divide and be back in membrane filter 10 and be filtered again, to reduce the waste water discharge rate of water purification system 100, is conducive to improve
The producing water ratio of water purification system 100.When the real-time reflux waste water TDS value that TDS detector 30 detects is greater than the maximum in the 4th section TDS
When value, that is to say, that the waste water quality that membrane filter 10 generates when filtering is poor, i.e., dirt, the impurity mixed in waste water is excessive, this
When controller while the default draining section of waste pipe f is increased, also the aperture of return of waste water valve 40 is reduced, such one
Aspect ensure that the waste water of the filtering production water of membrane filter 10 can be discharged in time, on the other hand also avoid production when membrane filter 10 filters
Raw waste water is back in membrane filter 10 by return pipe g, and then membrane filter 10 is caused to be blocked by other substances such as dirt, impurity
The problem of occur.
In one embodiment of this invention, Fig. 9 is please referred to, the control method of the water purification system 100 is further comprising the steps of:
Step S100 obtains the waste water discharge total amount of the membrane filter
Step S110 then controls membrane filter when waste water discharge total amount is the integral multiple of default waste water discharge rate
Flow back the first preset duration of water route closing, to be rinsed to the membrane filter.
Water purification system 100 after a period of use, can retain some impurity, dirt in the membrane filter 10 of water purification system 100
Deng, in order to avoid water purification system 100 membrane filter 10 be blocked, in one embodiment of this invention, controller is in water purification system
System 100 after a period of use, close, so that entering the water pair in membrane filter 10 from raw water tubes d by control return of waste water valve 40
After membrane component 12 in membrane filter 10 rinses, directly it is discharged from waste pipe f.
Specifically, flowmeter 30, which is also used to detect, drains into extraneous waste water discharge total amount by waste pipe f, and will test
Waste water discharge total amount is sent to controller, and waste water discharge total amount and default waste water discharge rate are made quotient by controller, if result is whole
Number, then controller control return of waste water valve 40 closes the first preset duration, allows for the raw water energy entered in membrane filter 10 in this way
It is enough that first preset duration is rinsed to membrane filter 10, at this point, be attached to the impurity on the membrane component 12 of membrane filter 10, dirt etc. other
Substance is rushed out under the flushing of raw water, avoids the membrane component 12 in membrane filter 10 in this way by its substance such as impurity, dirt
Blocking, and then ensure the production water speed of membrane filter 10.
It should say, above controller controls return of waste water valve 40 and closes the first preset duration, can pass through timing electricity
Road or timer realize that for those skilled in the art, this is mature technological means, just no longer superfluous herein
It states.
In one embodiment of this invention, Figure 10 is please referred to, the control method of the water purification system 100 further includes following step
It is rapid:
Step S120, when the membrane filter is completed to filter, the reflux water route for controlling the membrane filter is closed, to described
Membrane filter is rinsed.
Step S130, when the washing time of the membrane filter reaches the second preset duration, by the waste water water route of membrane filter
It closes, to carry out pressure maintaining to the membrane filter.
Step S140 stops when the dwell time for carrying out pressure maintaining to the membrane filter reaching third preset duration to institute
It states membrane filter and carries out pressure maintaining.
Specifically, controller control return of waste water valve 40 is first closed, and controls booster pump when membrane filter 10 is completed to filter
45 and waste water regulating valve 20 open so that the high pressure raw water in raw water tubes d is rinsed membrane filter 10.Due to waste pipe f
It is shown in a fully open operation, allows for flowing out from waste pipe f from the raw water that raw water tubes d enters in membrane filter 10 is most of in this way, it is high
Pressure high speed raw water the impurity retained in membrane filter 10, dirt can be taken out of, avoid in this way membrane filter 10 by impurity,
Dirt is blocked, and the service life of membrane filter 10 is conducive to extend.
And controller, when the flushing duration of membrane filter 10 reaches the second preset duration, control waste water regulating valve 20 is closed
It closes, to carry out pressure maintaining to membrane filter 10；10 water inlets of membrane filter at this time are not discharged, and the raw water in raw water tubes d is in booster pump 45
It flows, is allowed in membrane filter 10 in this way full of high pressure water into membrane filter 10 under driving.It is up to when the pressure maintaining of membrane filter 10
When to third preset duration, controller controls booster pump 45 and closes, and the booster pump 45 of closing is equivalent to the valve of a closing, this
When sample allows for water purification system 100 and stops working, high pressure raw water is also full of in membrane filter 10 always；When water purification system 100 lower one
When secondary unlatching Pure-water Making, due to being filled with high pressure raw water in membrane filter 10,100 Pure-water Making of water purification system is allowed in this way
When, membrane filter 10 without pressure accumulation can Pure-water Making namely water purification system 100 open when, membrane filter 10 can be prepared by pure water, this
Sample just shortens the time of user's waiting, is conducive to the experience for improving user.
It should say, above controller controls return of waste water valve 40 and closes the second preset duration, controls waste water regulating valve
20 close third preset duration, can be realized by timing circuit or timer, come for those skilled in the art
It says, this is mature technological means, and details are not described herein again.
It should be noted that each embodiment of the control method of above-mentioned water purification system has no sequencing, by above-mentioned each reality
The step applied in example is numbered, it is only for facilitates understanding.
The present invention also provides a kind of storage medium, which stores the step of the control method of above-mentioned water purification system
Suddenly, which may belong to a part of controller, is also possible to individualism and it can be readable by the controller.
In the present embodiment, the step of control method of the water purification system of storage medium storage, is realized such as when being executed by a controller
The step of control method of the water purification system of above-described embodiment, details are not described herein again.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all in the present invention
Inventive concept under, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/be used in it indirectly
He is included in scope of patent protection of the invention relevant technical field.
Claims (13)
1. a kind of control method of water purification system, which is characterized in that the control method of the water purification system the following steps are included:
Obtain the real-time waste water discharge rate of membrane filter；
When the real-time waste water discharge rate is greater than the maximum value in default draining section, then the real-time waste water discharge rate is subtracted
It is small；
When the real-time waste water discharge rate is less than the minimum value in default draining section, then the real-time waste water discharge rate is increased
Greatly.
2. the control method of water purification system as described in claim 1, which is characterized in that obtain the real-time useless of membrane filter described
Before water discharge rate step, further comprise the steps of:
Obtain the real-time raw water TDS value of the membrane filter；
When the real-time raw water TDS value is greater than the maximum value in the first default section TDS, then most by the default draining section
Small value and maximum value increase simultaneously；
When the maximum value in the real-time raw water TDS value section TDS default less than first, then most by the default draining section
Small value and maximum value reduce simultaneously；Or,
Obtain the real-time waste water TDS value of the membrane filter；
When the real-time waste water TDS value is greater than the maximum value in the second default section TDS, then most by the default draining section
Small value and maximum value increase simultaneously；
When the maximum value in the real-time waste water TDS value section TDS default less than second, then most by the default draining section
Small value and maximum value reduce simultaneously；Or,
Obtain the real-time reflux waste water TDS value being back in the membrane filter；
When the real-time reflux waste water TDS value, which is greater than third, presets the maximum value in the section TDS, then by the default draining section
Minimum value and maximum value increase simultaneously；
When the real-time reflux waste water TDS value, which is less than third, presets the minimum value in the section TDS, then by the default draining section
Minimum value and maximum value reduce simultaneously.
3. the control method of water purification system as described in claim 1, which is characterized in that the control method of the water purification system is also
The following steps are included:
Obtain the real-time reflux waste water TDS value being back in the membrane filter；
When the real-time reflux waste water TDS value is greater than the maximum value in the 4th section TDS, then will be back in the membrane filter
The wastewater flow rate that flows back reduces；
When minimum value of the real-time reflux waste water TDS value less than the 4th section TDS, then will be back in the membrane filter
The wastewater flow rate that flows back increases.
4. the control method of water purification system as described in claim 1, which is characterized in that the control method of the water purification system is also
The following steps are included:
Obtain the waste water discharge total amount of the membrane filter；
When waste water discharge total amount be the integral multiple of default waste water discharge rate, then the reflux water route closing the of membrane filter is controlled
One preset duration, to be rinsed to the membrane filter.
5. the control method of water purification system as described in claim 1, which is characterized in that the control method of the water purification system is also
The following steps are included:
When the membrane filter is completed to filter, the reflux water route for controlling the membrane filter is closed, to rush to the membrane filter
It washes；
When the washing time of the membrane filter reaches the second preset duration, the waste water water route of membrane filter is closed, to described
Membrane filter carries out pressure maintaining；
When the dwell time for carrying out pressure maintaining to the membrane filter reaching third preset duration, the membrane filter is protected in stopping
Pressure.
6. a kind of water purification system characterized by comprising
Membrane filter, including shell and it is installed on the intracorporal membrane component of the shell, the shell has the original being connected to raw water tubes
The mouth of a river, the pure water mouth being connected to pure water pipe and the waste water mouth being connected to waste pipe, and the raw water mouth and the waste water mouth are logical
Cross return pipe connection；
Waste water regulating valve is installed on the waste pipe；
Controller is stored with the control program for the water purification system that can be run, and the control program of the water purification system is by the control
Device executes, and performs the steps of
Obtain the real-time waste water discharge rate of membrane filter；
When the real-time waste water discharge rate is greater than the maximum value in default draining section, then the aperture of the waste water regulating valve is subtracted
It is small；
When the real-time waste water discharge rate is less than the minimum value in default draining section, then the aperture of the waste water regulating valve is increased
Greatly.
7. water purification system as claimed in claim 6, which is characterized in that the water purification system further includes electrical with the controller
The flowmeter of connection, the flowmeter are installed on the waste pipe, and drain into the external world by the waste pipe for detecting
Real-time waste water discharge rate.
8. water purification system as claimed in claim 7, which is characterized in that the flowmeter is also used to detect and be drained by the waste pipe
Total amount is discharged in extraneous waste water；
The control program of the water purification system performs the steps of when being executed by the controller
Obtain the waste water discharge total amount of the membrane filter；
When waste water discharge total amount be the integral multiple of default waste water discharge rate, then the reflux water route closing the of membrane filter is controlled
One preset duration, to be rinsed to the membrane filter.
9. water purification system as claimed in claim 1, which is characterized in that the water purification system further includes being electrically connected with the controller
TDS detector, the TDS detector is installed on the raw water tubes or the waste pipe or the return pipe；
The control program of the water purification system performs the steps of when being executed by the controller
Obtain the real-time raw water TDS value of the membrane filter；
When the real-time raw water TDS value is greater than the maximum value in the first default section TDS, then most by the default draining section
Small value and maximum value increase simultaneously；
When the maximum value in the real-time raw water TDS value section TDS default less than first, then most by the default draining section
Small value and maximum value reduce simultaneously；Or,
Obtain the real-time waste water TDS value of the membrane filter；
When the real-time waste water TDS value is greater than the maximum value in the second default section TDS, then most by the default draining section
Small value and maximum value increase simultaneously；
When the maximum value in the real-time waste water TDS value section TDS default less than second, then most by the default draining section
Small value and maximum value reduce simultaneously；Or,
Obtain the real-time reflux waste water TDS value being back in the membrane filter；
When the real-time reflux waste water TDS value, which is greater than third, presets the maximum value in the section TDS, then by the default draining section
Minimum value and maximum value increase simultaneously；
When the real-time reflux waste water TDS value, which is less than third, presets the minimum value in the section TDS, then by the default draining section
Minimum value and maximum value reduce simultaneously.
10. water purification system as claimed in claim 6, which is characterized in that the TDS detector is installed on the return pipe,
The water purification system further includes the return of waste water valve being electrically connected with the controller；
The control program of the water purification system performs the steps of when being executed by the controller
Obtain the real-time reflux waste water TDS value being back in the membrane filter；
When the real-time reflux waste water TDS value is greater than the maximum value in the 4th section TDS, then by the aperture of the return of waste water valve
Reduce；
When minimum value of the real-time reflux waste water TDS value less than the 4th section TDS, then by the aperture of the return of waste water valve
Increase.
11. water purification system as claimed in claim 10, which is characterized in that the water purification system further includes and the controller is electric
Property connection booster pump, the booster pump is installed on the raw water tubes；The control program of the water purification system is by the control
Device performs the steps of when executing
When the membrane filter is completed to filter, controls the return of waste water valve and close, to be rinsed to the membrane filter；
When the washing time of the membrane filter reaches the second preset duration, the waste water regulating valve is closed, to the film
Filter core carries out pressure maintaining；
When the dwell time for carrying out pressure maintaining to the membrane filter reaching third preset duration, the booster pump is closed.
12. water purification system as claimed in claim 11, which is characterized in that the booster pump is freq uency conversion supercharging pump；
The real-time waste water discharge rate that the controller is also used to detect in the flowmeter is less than the minimum value in default draining section
When, increase the revolving speed of the booster pump；It is greater than default draining section most in the real-time waste water discharge rate of flowmeter detection
When big value, reduce the revolving speed of the booster pump.
13. a kind of computer readable storage medium, which is characterized in that be stored with water purification system on the computer readable storage medium
The control program of system is realized when the control program of the water purification system is executed by a controller such as any one of claims 1 to 5 institute
The step of control method for the water purification system stated.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112551721A (en) * | 2020-12-16 | 2021-03-26 | 珠海格力电器股份有限公司 | Water purification system |
| CN115477348A (en) * | 2022-08-12 | 2022-12-16 | 青岛海尔施特劳斯水设备有限公司 | Control method of water purifying device and water purifying device |
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Application publication date: 20181228 |