CN105314709A - Water purification system and control method of same - Google Patents
Water purification system and control method of same Download PDFInfo
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- CN105314709A CN105314709A CN201510828386.XA CN201510828386A CN105314709A CN 105314709 A CN105314709 A CN 105314709A CN 201510828386 A CN201510828386 A CN 201510828386A CN 105314709 A CN105314709 A CN 105314709A
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Abstract
The invention discloses a water purification system and a control method of the same. The water purification system comprises a reverse osmosis membrane and a wastewater valve; the reverse osmosis membrane is provided with a water source inlet, a pure water outlet and a concentrated water outlet, the water source inlet is connected with a booster pump, and the pure water outlet is connected with a TDS detection module; the wastewater valve can regulate the wastewater ratio of the reverse osmosis membrane, the wastewater valve is connected with the concentrated water outlet of the reverse osmosis membrane, and the wastewater valve is in communication with the TDS detection module and is used for regulating the pressure in front of the reverse osmosis membrane according to a detection result of the TDS detection module. According to the water purification system, due to the fact that the TDS detection module and the wastewater valve capable of regulating the wastewater ratio are arranged in the water purification system, the wastewater flow is regulated according to the detection result of the TDS detection module, and the TDS value in pure water output by the reverse osmosis membrane can be regulated by regulating pure water production of the reverse osmosis membrane through the wastewater valve.
Description
Technical field
The present invention relates to technical field of water purification, especially relate to the control method of a kind of water cleaning systems and water cleaning systems.
Background technology
In correlation technique, the TDS value of intaking in water cleaning systems affects water outlet TDS value, and (wherein, TDS is the abbreviation of English Totaldissolvedsolids, and Chinese is total dissolved solid, also known as dissolvability solid amount, it shows to be dissolved with how many milligrams of soluble solids in 1 premium on currency).Specifically, when water inlet TDS is large, water outlet TDS is large, water inlet TDS hour, and water outlet TDS is little, cannot provide a kind of water of constant water quality for user.And China region is wide, water quality situation is widely different, uses traditional water cleaning systems, the area that water quality is good, and the water that user obtains is purer, the area of water quality inferiority, and the water that user obtains is poor, cannot ensure that the drinking-water of all users is healthy.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the invention reside in and propose a kind of water cleaning systems, the water quality of the pure water that this water cleaning systems obtains is good and water quality is constant.
Another object of the present invention is the control method proposing a kind of water cleaning systems.
Water cleaning systems according to a first aspect of the present invention, comprising: reverse osmosis membrane, and described reverse osmosis membrane has water source entrance, pure water outlet and condensed water outlet, and described water source entrance is connected with topping-up pump, and described pure water outlet is connected with TDS detection module; Wastewater valve, the waste water ratio of the adjustable described reverse osmosis membrane of described wastewater valve, described wastewater valve exports with the condensed water of described reverse osmosis membrane and is connected, and described wastewater valve and the communication of described TDS detection module, for regulating the waste water ratio of described reverse osmosis membrane according to the detected result of TDS detection module.
According to water cleaning systems of the present invention, by arranging the wastewater valve of TDS detection module and adjustable waste water ratio in water cleaning systems, and regulate wastewater flow according to the detected result of TDS detection module.Thus, the TDS in the pure water that can be exported by the detected result determination reverse osmosis membrane of TDS detection module, the TDS value in the pure water then regulating the pure water output of reverse osmosis membrane to regulate reverse osmosis membrane to export by wastewater valve.
In addition, according to water cleaning systems of the present invention, following additional technical characteristic can also be had:
According to some embodiments of the present invention, the feed-water end of described topping-up pump is connected with first pre-filter.
Alternatively, described first pre-filter is at least one in the cotton layer of PP and filtering net.
Further, described pure water outlet is connected with high-voltage switch gear, and described pure water entrance is connected with water intaking valve, described water intaking valve and described high-voltage switch gear communication.
Further, water bag, water pump and composite filter element is connected with in turn along water (flow) direction between described pure water outlet and described high-voltage switch gear.
Alternatively, liquid level switch is provided with in described water bag.
Alternatively, described composite filter element comprises carbon-point and ultra-filtration element.
According to some embodiments of the present invention, described wastewater valve is the adjustable waste water ratio electromagnetic valve of pressure before the film of adjustable reverse osmosis membrane.
The control method of water cleaning systems according to a second aspect of the present invention, comprising: if the TDS value of the current of the pure water outlet output of described reverse osmosis membrane is greater than preset value, pressure before regulating wastewater valve to increase the film of described reverse osmosis membrane is until the TDS value that the pure water of described reverse osmosis membrane exports the current exported is less than described preset value.
The control method of water cleaning systems according to a second aspect of the present invention, reduces wastewater flow by regulating wastewater valve.Thus, pure water output can be improved, thus reduce the TDS content in pure water.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the water cleaning systems according to the embodiment of the present invention;
Fig. 2 is the control schematic diagram of the TDS detection module shown in Fig. 1 and wastewater valve;
Fig. 3 is the control flow chart of the water cleaning systems shown in Fig. 1.
Reference numeral:
Water cleaning systems 100,
Reverse osmosis membrane 1, water source entrance 101, pure water outlet 102, condensed water outlet 103,
Wastewater valve 2, topping-up pump 3, TDS detection module 4, first pre-filter 5, high-voltage switch gear 6, water intaking valve 7, water bag 8, liquid level switch 81, water pump 9, composite filter element 10,
Preset value TDS1.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to Fig. 1-Fig. 3, the water cleaning systems 100 according to the embodiment of the present invention is described.
As shown in Figure 1, the water cleaning systems 100 of embodiment according to a first aspect of the present invention, comprising: reverse osmosis membrane 1 and wastewater valve 2.
Reverse osmosis membrane 1 has water source entrance 101, pure water outlet 102 and condensed water outlet 103.For example, referring to Fig. 1, water source entrance 101 is formed in the left side of reverse osmosis membrane 1, the right side that pure water outlet 102 and condensed water outlet 103 are all formed in reverse osmosis membrane 1, and pure water outlet 102 exports 103 with condensed water is staggeredly arranged.In the example of fig. 1, pure water outlet 102 is located at the top of condensed water outlet 103.
Water source entrance 101 is connected with topping-up pump 3, pure water outlet 102 is connected with TDS detection module 4, so that detect the TDS (TotalDissolvedSolids, i.e. total dissolved solid material refer to the concentration of total dissolved matter in water) in the obtained pure water of reverse osmosis membrane 1.
The waste water ratio of the adjustable reverse osmosis membrane 1 of wastewater valve 2, that is, the ratio of the pure water and waste water of reverse osmosis membrane 1 output can be regulated by wastewater valve 2, in addition because water source service discharge is consistent, if change the waste water ratio of reverse osmosis membrane 1, then can change the pure water output by reverse osmosis membrane 1.
Wastewater valve 2 exports 103 with the condensed water of reverse osmosis membrane 1 and is connected, and wastewater valve 2 and TDS detection module 4 communication, for regulating the waste water ratio of reverse osmosis membrane 1 according to the detected result of TDS detection module 4.
According to the water cleaning systems 100 of the embodiment of the present invention, by arranging the wastewater valve 2 of TDS detection module 4 and adjustable waste water ratio in water cleaning systems 100, and regulate wastewater flow according to the detected result of TDS detection module 4.Thus, the TDS in the pure water that can be exported by the detected result determination reverse osmosis membrane 1 of TDS detection module 4, the TDS value in the pure water then regulating the pure water output of reverse osmosis membrane 1 to regulate reverse osmosis membrane 1 to export by wastewater valve 2.
Specifically, when TDS detection module 4 detects that the TDS value of pure water outlet 102 is too high, wastewater valve 2 can be regulated to increase the pure water output of reverse osmosis membrane 1, thus realize the object of the TDS value reducing pure water outlet 102.
Preferably, wastewater valve can adopt the adjustable waste water ratio electromagnetic valve of pressure before the film of adjustable reverse osmosis membrane, that is, is regulated the pure water output of reverse osmosis membrane 1 by pressure before regulating the film of reverse osmosis membrane 1.But be not limited thereto.
As follows by the principle of the TDS value regulating pure water output reduction pure water outlet 102.
All be connected on main control chip with reference to Fig. 2, TDS detection module 4 and wastewater valve 2.
According to dissolve-diffusion model, the water production rate of reverse osmosis membrane 1 and salt transit dose can represent with following diffusion formula:
Q
W＝K
W(ΔP-Δπ)A/τ①
Q
S＝K
S×ΔC×A/τ②
Wherein, Q
wfor water production rate; K
wfor the permeability coefficient of reverse osmosis membrane 1; Δ P is the pressure reduction of the both sides of reverse osmosis membrane 1; Δ π is osmotic pressure; A is the area of reverse osmosis membrane 1; τ is the thickness of reverse osmosis membrane 1; Q
sfor salt transit dose; K
sfor reverse osmosis membrane 1 spread coefficient; Δ C is the concentration difference of reverse osmosis membrane 1 both sides.
From formula 1. with formula 2., along with the increase of flooding quantity, the ratio of desalinization of reverse osmosis membrane 1 is in rising trend.Wherein, intake pressure itself can't affect salt transit dose, but intake pressure raises and drives the net pressure of reverse osmosis to raise, and water production rate is strengthened, and simultaneously salt transit dose is almost constant, the water production rate of increase dilute through salinity, thus reduction water outlet TDS value.
Such as, when detecting that the pure water TDS value exported in the pure water at 102 places is greater than preset value TDS1, adjustment wastewater valve 2, reduce wastewater flow, pressure before raising film, thus reduce pure water and export the TDS value at 102 places, until TDS detection module 4 detects that the TDS value that pure water exports 102 places is not more than preset value TDS1.Thus, can increase water quality, solve the problem that different zones water quality water outlet TDS difference is large, thus improve the suitability of water cleaning systems 100.
According to some embodiments of the present invention, the feed-water end of topping-up pump 3 is connected with first pre-filter 5, to remove heterochromatic, the peculiar smell, chlorine residue, naked eyes visible etc. in water.Wherein, first pre-filter 5 can be at least one in the cotton layer of PP and filtering net.Specifically, first pre-filter 5 can be the cotton layer of PP, also can be filtering net, can also be the combination filter member of the cotton layer of PP and filtering net composition.Thus, reverse osmosis membrane 1 effectively can be avoided to block, extend the work-ing life of reverse osmosis membrane 1, thus reduce the cost of water cleaning systems 100.
Further, pure water outlet 102 is connected with high-voltage switch gear 6, and pure water entrance is connected with water intaking valve 7, water intaking valve 7 and high-voltage switch gear 6 communication.Specifically, when high-voltage switch gear 6 is opened, water intaking valve 7 is opened; When high-voltage switch gear 6 is closed, water intaking valve 7 is closed.
Further, water bag 8, water pump 9 and composite filter element 10 is connected with in turn along water (flow) direction between pure water outlet 102 and high-voltage switch gear 6.Thus, the pure water that reverse osmosis membrane 1 is obtained can be stored in water bag 8, and by water pump 9, the pure water in water bag 8 be delivered to composite filter element 10 and filter, to improve the mouthfeel of pure water.Alternatively, composite filter element 10 can comprise carbon-point and ultra-filtration element, but is not limited thereto.
Alternatively, liquid level switch 81 is provided with in water bag 8.Such as, in the example of fig. 1, liquid level switch 81 is located at the inner side of water bag 8, and the horizontal plane at liquid level switch 81 place and the opening end of water bag 8 have certain spacing.Thus, can prevent the water in water bag 8 from overflowing, improve the reliability of water cleaning systems 100.
Below with reference to the accompanying drawings describe according to a specific embodiment of the present invention.
As shown in Figure 1, comprise according to the water cleaning systems 100 of the embodiment of the present invention: first pre-filter 5, water intaking valve 7, topping-up pump 3, reverse osmosis membrane 1, TDS detection module 4, built-in water bag 8, liquid level switch 81, little water pump 9, composite filter element 10, high-voltage switch gear 6 and adjustable waste water ratio electromagnetic valve.
Reverse osmosis membrane 1 has water source entrance 101, pure water outlet 102 and condensed water outlet 103.Wherein, water source entrance 101 is formed in the left side of reverse osmosis membrane 1, and pure water outlet 102 and condensed water outlet 103 are all formed in the right side of reverse osmosis membrane 1, and pure water outlet 102 is arranged on the top of condensed water outlet 103.
Topping-up pump 3 is connected with water source entrance 101, and TDS detection module 4 and pure water export 102 and be connected, so that detect the TDS value in the obtained pure water of reverse osmosis membrane 1.
Adjustable waste water ratio electromagnetic valve exports 103 with the condensed water of reverse osmosis membrane 1 and is connected, and adjustable waste water ratio electromagnetic valve and TDS detection module 4 communication, for regulating the waste water ratio of reverse osmosis membrane 1 according to the detected result of TDS detection module 4.Specifically, TDS detection module 4 and adjustable waste water ratio electromagnetic valve are all connected on main control chip.
Such as, when detecting that the pure water TDS value exported in the pure water at 102 places is greater than preset value TDS1, adjust adjustable waste water ratio electromagnetic valve, reduce wastewater flow, pressure before raising film, improve pure water amount, thus reduce the TDS value that pure water exports 102 places, until TDS detection module 4 detects that the TDS value that pure water exports 102 places is not more than preset value TDS1.Thus, can increase water quality, solve the problem that different zones water quality water outlet TDS difference is large, thus improve the suitability of water cleaning systems 100.
First pre-filter 5 is connected to the feed-water end of topping-up pump 3, to remove heterochromatic, the peculiar smell, chlorine residue, naked eyes visible etc. in water.Wherein, first pre-filter 5 can be the cotton layer of PP.Thus, reverse osmosis membrane 1 effectively can be avoided to block, extend the work-ing life of reverse osmosis membrane 1, thus reduce the cost of water cleaning systems 100.
High-voltage switch gear 6 and pure water export 102 and are connected, and water intaking valve 7 is connected with pure water entrance, water intaking valve 7 and high-voltage switch gear 6 communication.Water bag 8, water pump 9 and the composite filter element 10 be made up of carbon-point and ultra-filtration element are serially connected between pure water outlet 102 and high-voltage switch gear 6 successively along water (flow) direction.Thus, the pure water that reverse osmosis membrane 1 is obtained can be stored in water bag 8, and by water pump 9, the pure water in water bag 8 be delivered to composite filter element 10 and filter, to improve the mouthfeel of pure water.
Liquid level switch 81 is located at the inner side of water bag 8, and the horizontal plane at liquid level switch 81 place and the opening end of water bag 8 have certain spacing.Thus, can prevent the water in water bag 8 from overflowing, improve the reliability of water cleaning systems 100.
As shown in Figure 3, the control method of the water cleaning systems 100 of embodiment according to a second aspect of the present invention, comprise: if the TDS value of the current of pure water outlet 102 output of reverse osmosis membrane 1 is greater than preset value TDS1, regulate the wastewater valve 2 of adjustable waste water ratio, pressure before increasing the film of reverse osmosis membrane 1 is until the TDS value that the pure water of reverse osmosis membrane 1 exports the current that 102 export is less than preset value TDS1.Thus, by pressure before change wastewater flow rate change film, reduce the TDS content in pure water, thus increase water quality, solve the problem that different zones water quality water outlet TDS difference is large, thus improve the suitability of water cleaning systems 100.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (9)
1. a water cleaning systems, is characterized in that, comprising:
Reverse osmosis membrane, described reverse osmosis membrane has water source entrance, pure water outlet and condensed water outlet, and described water source entrance is connected with topping-up pump, and described pure water outlet is connected with TDS detection module;
The wastewater valve of the waste water ratio of adjustable described reverse osmosis membrane, described wastewater valve exports with the condensed water of described reverse osmosis membrane and is connected, and described wastewater valve and the communication of described TDS detection module, for regulating the waste water ratio of described reverse osmosis membrane according to the detected result of TDS detection module.
2. water cleaning systems according to claim 1, is characterized in that, the feed-water end of described topping-up pump is connected with first pre-filter.
3. water cleaning systems according to claim 2, is characterized in that, described first pre-filter is at least one in the cotton layer of PP and filtering net.
4. water cleaning systems according to claim 1, is characterized in that, described pure water outlet is connected with high-voltage switch gear, and described pure water entrance is connected with water intaking valve, described water intaking valve and described high-voltage switch gear communication.
5. water cleaning systems according to claim 4, is characterized in that, is connected with water bag, water pump and composite filter element in turn between described pure water outlet and described high-voltage switch gear along water (flow) direction.
6. water cleaning systems according to claim 5, is characterized in that, is provided with liquid level switch in described water bag.
7. water cleaning systems according to claim 5, is characterized in that, described composite filter element comprises carbon-point and ultra-filtration element.
8. the water cleaning systems according to any one of claim 1-5, is characterized in that, described wastewater valve is the adjustable waste water ratio electromagnetic valve of pressure before the film of adjustable reverse osmosis membrane.
9. a control method for the water cleaning systems according to any one of claim 1-8, is characterized in that, described control method comprises:
If the TDS value of the current of the pure water outlet output of described reverse osmosis membrane is greater than preset value, pressure before regulating adjustable waste water ratio electromagnetic valve to increase the film of described reverse osmosis membrane is until the TDS value that the pure water of described reverse osmosis membrane exports the current exported is less than described preset value.
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| CN106422782A (en) * | 2016-07-08 | 2017-02-22 | 苏州科尔净净化科技有限公司 | Efficient roll type filter element |
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| CN106745521A (en) * | 2016-12-21 | 2017-05-31 | 青岛海尔施特劳斯水设备有限公司 | The reverse osmosis purified water system and its adjusting method of a kind of adjustable waste water ratio |
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| CN108479402A (en) * | 2018-04-09 | 2018-09-04 | 深圳弗尔斯特环境健康技术有限公司 | A kind of intelligent self-adaptive length filter effect reverse osmosis purified water system |
| CN114555532A (en) * | 2019-10-29 | 2022-05-27 | 科唯怡株式会社 | Water purifier |
| CN114380357A (en) * | 2020-10-16 | 2022-04-22 | 云米互联科技(广东)有限公司 | Water purification system and method convenient for TDS regulation and control and water purification equipment |
| WO2023116192A1 (en) * | 2021-12-22 | 2023-06-29 | Kunshan Eco Water Systems Company Limited | A reverse osmosis system having an adjustable flow restrictor for in-situ adjustment of concentrate water to a drain, and method of performing the same |
| CN115105956A (en) * | 2022-06-30 | 2022-09-27 | 宁波方太厨具有限公司 | Water quality adjusting method and system of water purification system |
| CN115105956B (en) * | 2022-06-30 | 2024-03-15 | 宁波方太厨具有限公司 | Water quality adjusting method and system of water purifying system |
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