CN105621644A - Water purification system and cleaning method thereof - Google Patents
Water purification system and cleaning method thereof Download PDFInfo
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- CN105621644A CN105621644A CN201410583785.XA CN201410583785A CN105621644A CN 105621644 A CN105621644 A CN 105621644A CN 201410583785 A CN201410583785 A CN 201410583785A CN 105621644 A CN105621644 A CN 105621644A
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Abstract
The invention discloses a water purification system and a cleaning method thereof, wherein the water purification system comprises a pretreatment unit (100), a reverse osmosis treatment unit (200) and a water storage unit (300) which are sequentially connected in series through pipelines, and also comprises a circulation waterway unit (400); the reverse osmosis treatment unit (200) comprises a reverse osmosis filter core (210); the circulation waterway unit (400) is connected with the reverse osmosis treatment unit (200) through a pipeline so as to form a circulation loop; a first solenoid valve (010) is arranged on the connection pipeline between the reverse osmosis treatment unit (200) and the water storage unit (300). By the water purification system and the cleaning method thereof disclosed by the invention, the flushing intensity on the reverse osmosis filter core is high, so pollutants in the reverse osmosis filter core can be effectively removed; and meanwhile, the pollution to the reverse osmosis filter core can be significantly slowed down and the service life of the reverse osmosis filter core is prolonged.
Description
Technical field
The present invention relates to tap water purifying field, particularly relate to a kind of water cleaning systems and cleaning method thereof.
Background technology
Reverse osmosis membrane (i.e. reverse osmosis filter element) is the core component in water purifier system, and it is in use owing to the solute in feed liquid or particle deposit on film surface, it is easy to fouling membrane occurs. Fouling membrane will result directly in the separating property of reverse osmosis membrane and declines, so that operation pressure becomes big, the life-span of product water water quality, reverse osmosis membrane is had undesirable effect, increases operating cost.
Traditional reverse osmosis water purifier generally uses the method that former water (tap water) rinses face to carry out the impact of decelerating membrane pollution, extends the life-span of reverse osmosis membrane. Owing to needing to consider the consumption of flushing water on the one hand, usual washing time is very short, and the flow velocity of flushing water is less so that limited in the shearing force of face generation during flushing; Tap water is poor to the solvability of various salt crust on the other hand, so adopting the method that traditional former water rushes face effectively reverse osmosis membrane to be rinsed.
Summary of the invention
Based on this, it is necessary to for defect and the deficiency of prior art, it is provided that a kind of can high-efficiency rinsing reverse osmosis membrane, be prevented effectively from fouling membrane, extend a kind of water cleaning systems in reverse osmosis membrane life-span and cleaning method thereof.
The water cleaning systems provided for realizing the object of the invention, including passing sequentially through the pretreatment unit of placed in series, reverse-osmosis treated unit and water cell, described reverse-osmosis treated unit includes reverse osmosis filter element; Also include circulation waterway unit;
Described circulation waterway unit is connected by pipeline with described reverse-osmosis treated unit, forms a closed circuit;
Connection pipeline between described reverse-osmosis treated unit and described water cell is provided with the first electromagnetic valve; When described first electromagnetic valve is in opening, the pure water stored in described water cell can pass through described circulation waterway unit, enter described reverse-osmosis treated unit described reverse osmosis filter element is rinsed, discharge from the discharge outlet of described reverse-osmosis treated unit or be again introduced into described circulation waterway unit afterwards and be circulated.
Wherein in an embodiment, the water cleaning systems of the present invention also includes post-processing unit;
Described post-processing unit is connected by pipeline with described reverse-osmosis treated unit and described water cell;
Connection pipeline between described post-processing unit and described reverse-osmosis treated unit and described water cell is provided with the second electromagnetic valve; When described second electromagnetic valve is closed, and described first electromagnetic valve is when being in opening, the pure water stored in described water cell can pass through described circulation waterway unit, enter described reverse-osmosis treated unit described reverse osmosis filter element is rinsed, discharge from the discharge outlet of described reverse-osmosis treated unit or be again introduced into described circulation waterway unit afterwards and be circulated.
Wherein in an embodiment, described reverse-osmosis treated unit also includes stabilized pressure pump and the first check valve;
Described stabilized pressure pump is arranged on the inlet channel of described reverse osmosis filter element;
Described first check valve is arranged on the connection pipeline between described reverse osmosis filter element and described circulation waterway unit, described water cell and described post-processing unit;
Water in described pretreatment unit or described circulation waterway unit enters described reverse osmosis filter element through described stabilized pressure pump, and the product water after described reverse osmosis filter element filtering enters described circulation waterway unit, described water cell or described post-processing unit by described first check valve.
Wherein in an embodiment, described reverse-osmosis treated unit also includes effusion meter;
Described effusion meter is arranged on the connection pipeline between described reverse osmosis filter element and described stabilized pressure pump.
Wherein in an embodiment, described reverse-osmosis treated unit also includes drainage pipeline;
Described drainage pipeline is connected with described reverse osmosis filter element, and described drainage pipeline is provided with the 3rd electromagnetic valve.
Wherein in an embodiment, described circulation waterway unit includes the 4th electromagnetic valve and the second check valve that are arranged on pipeline;
When described 4th electromagnetic valve is opened, the product water of described reverse-osmosis treated unit can flow through described first check valve successively, described second check valve enters described stabilized pressure pump, or the pure water stored in described water cell can flow through described second check valve and enter described stabilized pressure pump.
Wherein in an embodiment, the connection pipeline between described pretreatment unit and described reverse-osmosis treated unit is provided with the 5th electromagnetic valve;
When described second electromagnetic valve and described 5th electromagnetic valve are closed, and when described first electromagnetic valve, described 3rd electromagnetic valve and described 4th electromagnetic valve are in opening, the pure water stored in described water cell can pass through described circulation waterway unit, enter described reverse-osmosis treated unit described reverse osmosis filter element is rinsed, discharge from the discharge outlet of described reverse-osmosis treated unit afterwards;
When described second electromagnetic valve, described 3rd electromagnetic valve and described 5th electromagnetic valve are closed, when described first electromagnetic valve and described 4th electromagnetic valve are in opening, the pure water stored in described water cell can pass through described circulation waterway unit, enter described reverse-osmosis treated unit described reverse osmosis filter element is rinsed, be again introduced into described circulation waterway unit afterwards and be circulated.
Wherein in an embodiment, described pretreatment unit includes PP cotton filter element and active carbon filter core;
Described PP cotton filter element and described active carbon filter core pass through placed in series.
Wherein in an embodiment, described water cell includes pressure pot and the first high-voltage switch gear;
Described pressure pot is connected with described reverse-osmosis treated unit and described post-processing unit respectively by pipeline, is used for storing pure water;
Described first high-voltage switch gear is arranged on the connection pipeline between described pressure pot and described reverse-osmosis treated unit and described post-processing unit.
Wherein in an embodiment, described post-processing unit includes composite filter element and the second high-voltage switch gear;
Described composite filter element is connected with described reverse-osmosis treated unit and described water cell respectively by pipeline;
Described second high-voltage switch gear is arranged on the outlet conduit of described composite filter element.
Correspondingly, the present invention also provides for the cleaning method of a kind of water cleaning systems, comprises the following steps:
S100, when water cleaning systems stops controlling the water circulation work or needs to be rinsed, the a part of pure water controlling to store in water cell enters reverse-osmosis treated unit by circulation waterway unit, in the pure water press-in reverse osmosis filter element entering described reverse-osmosis treated unit, the former water of residual and the mixing water of dense water in described reverse osmosis filter element will be discharged by stabilized pressure pump;
S200, after draining completes, the a part of pure water controlling to store in described water cell enters described reverse-osmosis treated unit by circulation waterway unit, make the circulation in the closed circuit that described circulation waterway unit and described reverse-osmosis treated unit form of this portion of pure water by described stabilized pressure pump, described reverse osmosis filter element is circulated flushing; Stopping after circulation flushing Preset Time, discharged by flushing water, finally control described water cell and again supplement pure water to described circulation waterway unit, making the water of residual in described closed circuit and described reverse osmosis filter element is pure water, rinses complete.
Beneficial effects of the present invention: water cleaning systems provided by the invention and cleaning method thereof, by a circulation waterway unit in parallel at the pipeline place of reverse-osmosis treated unit, a closed circuit is formed with this reverse-osmosis treated unit, and the connection pipeline between reverse-osmosis treated unit and water cell arranges the first electromagnetic valve, so that the pure water stored in water cell can through circulation waterway unit, enter reverse-osmosis treated unit, discharge from the discharge outlet of reverse-osmosis treated unit or be again introduced into circulation waterway unit after reverse osmosis filter element filtering and be circulated, reverse osmosis filter element is rinsed. water cleaning systems provided by the invention and cleaning method thereof, the flushing great efforts to reverse osmosis filter element, it is possible to effectively remove the pollutant in reverse osmosis filter element. meanwhile, it is capable to significantly slow the pollution of reverse osmosis filter element, extend the service life of reverse osmosis filter element.
Accompanying drawing explanation
The purpose of water cleaning systems and cleaning method thereof, technical scheme and advantage in order to make the present invention are clearly understood, below in conjunction with concrete drawings and the specific embodiments, water cleaning systems and cleaning method thereof to the present invention are further elaborated.
Fig. 1 is the structural representation of an embodiment of the water cleaning systems of the present invention;
Fig. 2 is the structural representation of another embodiment of the water cleaning systems of the present invention.
Detailed description of the invention
The present invention is described in detail below in conjunction with embodiment. It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
As it is shown in figure 1, the water cleaning systems that one embodiment of the invention provides, including pretreatment unit 100, reverse-osmosis treated unit 200, water cell 300 and circulation waterway unit 400. Reverse-osmosis treated unit 200 includes reverse osmosis filter element 210, for the water flowing through reverse-osmosis treated unit 200 is filtered.
Wherein, pretreatment unit 100, reverse-osmosis treated unit 200, water cell 300 pass sequentially through placed in series. During controlling the water circulation, former water (tap water) is after pretreatment unit 100 processes, the reverse osmosis filter element 210 flowed through in reverse-osmosis treated unit 200 is filtered, the product water (being equivalent to pure water) of reverse-osmosis treated unit 200 enters in water cell 300 and stores as pure water, for user. Reverse-osmosis treated unit 200 has discharge outlet, and the dense water after reverse osmosis filter element 210 filters is discharged from the discharge outlet of reverse-osmosis treated unit 200.
Circulation waterway unit 400 is in parallel by pipeline with reverse-osmosis treated unit 200, forms a closed circuit. Connection pipeline between reverse-osmosis treated unit 200 and water cell 300 is provided with the first electromagnetic valve 010 (as depicted in figs. 1 and 2), when the first electromagnetic valve 010 is in opening, the pure water stored in water cell 300 can through circulation waterway unit 400, enter reverse-osmosis treated unit 200, be circulated discharging from the discharge outlet of reverse-osmosis treated unit 200 or be again introduced into circulation waterway unit 400 after reverse osmosis filter element 210 flushing.
Owing to reverse-osmosis treated unit 200 and water cell 300 pass through placed in series, so also by above-mentioned pipeline communication between circulation waterway unit 400 and water cell 300, so the first electromagnetic valve 010 also is located on the connection pipeline between circulation waterway unit 400 and water cell 300 simultaneously.
An above-mentioned circulation flushing process can include two actions, flushing action one and flushing action two.
Flushing action one: be first shut off pretreatment unit 100, stops former water to enter; Open the first electromagnetic valve 010, make a part of pure water stored in water cell 300 through circulation waterway unit 400, enter reverse-osmosis treated unit 200, it is full of reverse osmosis filter element 210, make the water of residual in the circulation waterway between former water and dense water and circulation waterway unit 400 and the reverse-osmosis treated unit 200 remained after controlling the water circulation in reverse osmosis filter element 210 discharge from the discharge outlet of reverse-osmosis treated unit 200, close the first electromagnetic valve 010;
Flushing action two: after flushing action one, close the discharge outlet of reverse-osmosis treated unit 200, it is turned off after opening for the first electromagnetic valve 010 certain time, make a part of pure water stored in water cell 300 again pass by circulation waterway unit 400 and enter reverse-osmosis treated unit 200, reverse osmosis filter element 210 is circulated flushing, after rinsing certain time, flushing water is discharged from the discharge outlet of reverse-osmosis treated unit 200. It is then shut off the discharge outlet of reverse-osmosis treated unit 200, is turned off after being again turned on for the first electromagnetic valve 010 certain time, pure water is supplemented in again in the loop that circulation waterway unit 400 and reverse-osmosis treated unit 200 are formed, completes to rinse.
Above-mentioned flushing action one and action two can circulate and carry out, whole flushing process terminate Posterior circle water way unit 400 and reverse-osmosis treated unit 200 and be connected in pipeline residual for pure water.
Traditional water cleaning systems generally uses tap water face (i.e. the reverse osmosis filter element 210 of the present invention) to carry out decelerating membrane pollution, and owing to flushing dynamics is little and tap water is poor to the solvability of various salt crust, so causing that cleaning efficiency is low, effect is bad. The present invention is by arranging circulation waterway unit 400, and make its one closed circuit of formation in parallel with reverse-osmosis treated unit 200, and the connection pipeline between reverse-osmosis treated unit 200 and water cell 300 arranges the first electromagnetic valve 010, the pure water stored in water cell 300 is introduced in this closed circuit, it is achieved utilize the pure water stored in water cell 300 that reverse osmosis filter element 210 is circulated flushing.
The water cleaning systems that the present embodiment provides, when circulation flushing, pure water Rapid Circulation flowing in the water route of Guan Bi, forms big shearing force and is washed away by the polluter of reverse osmosis filter element 210. Owing to the water ph value that goes out of reverse osmosis filter element 210 is generally less than 7 in faintly acid, so, the salt crust on reverse osmosis filter element 210 is had stronger solvability by pure water. Further, after circulation flushing process terminates, in reverse osmosis filter element 210, the water of residual is pure water, and reverse osmosis filter element 210 is immersed in pure water both to have reduced the precipitation precipitation tendency of salinity in dense water, and long-time immersion again can the pollutant on its surface of reverse osmosis filter element 210. The water cleaning systems that the present embodiment provides, the flush efficiency of reverse osmosis filter element 210 is high, effective, and reverse osmosis filter element 210 can be prevented effectively from pollute, extend the service life of reverse osmosis filter element 210.
Referring to Fig. 1, the water cleaning systems that another embodiment of the present invention provides also includes post-processing unit 500, and post-processing unit 500 is connected by pipeline with reverse-osmosis treated unit 200 and water cell 300. Post-processing unit 500 is for doing further filtration treatment to the pure water stored in water and water cell 300 that produces of reverse-osmosis treated unit 200, and then supply user uses.
The product water of reverse-osmosis treated unit 200 can enter in water cell 300 and store as pure water, it is also possible to enters post-processing unit 500 and does after further filtration treatment for user. Meanwhile, the pure water stored in water cell 300 can also pass through post-processing unit 500 and supply user's use.
Connection pipeline between post-processing unit 500 and reverse-osmosis treated unit 200 and water cell 300 is provided with the second electromagnetic valve 020 (referring to Fig. 1 and Fig. 2); When the second electromagnetic valve 020 is closed, and first electromagnetic valve 010 when being in opening, the pure water stored in water cell 300 can pass through circulation waterway unit 400, enter reverse-osmosis treated unit 200 reverse osmosis filter element 210 is rinsed, discharge from the discharge outlet of reverse-osmosis treated unit 200 or be again introduced into circulation waterway unit 400 afterwards and be circulated.
The water cleaning systems that another embodiment of the present invention provides, as in figure 2 it is shown, reverse-osmosis treated unit 200 includes reverse osmosis filter element 210, stabilized pressure pump 220 and the first check valve 230, stabilized pressure pump 220 is arranged on the inlet channel of reverse osmosis filter element 210.
First check valve 230 is arranged on the connection pipeline between reverse osmosis filter element 210 and circulation waterway unit 400, water cell 300 and post-processing unit 500.
During normal controlling the water circulation, pretreatment unit 100, in water enter reverse osmosis filter element 210 through stabilized pressure pump 220, the product water after the filtration of reverse osmosis filter element 210 enters circulation waterway unit 400 or water cell 300 or post-processing unit 500 by the first check valve 230.
During flushing, a part of pure water stored in water cell 300 enters reverse-osmosis treated unit 200 by circulation waterway unit 400; Open stabilized pressure pump 220, under the effect of stabilized pressure pump 220, the pure water entering reverse-osmosis treated unit 200 is quickly pressed in reverse osmosis filter element 210, it is rinsed. Pure water quickly flows in the water route of Guan Bi, itself has extremely strong rinse capability. Stabilized pressure pump 220 is arranged on the inlet channel of reverse osmosis filter element 210, increases the speed and strength of flushing further.
Reverse-osmosis treated unit 200 also includes effusion meter 240, and effusion meter 240 is arranged on the connection pipeline between reverse osmosis filter element 210 and stabilized pressure pump 220. Effusion meter 240 is used for recording current total amount, thus the service life of each water purification unit is monitored.
Reverse-osmosis treated unit 200 also includes drainage pipeline, and drainage pipeline is connected with reverse osmosis filter element 210, and drainage pipeline is provided with the 3rd electromagnetic valve 030, controls the break-make of drainage pipeline.
As depicted in figs. 1 and 2, the circulation waterway unit 400 in above-described embodiment includes the 4th electromagnetic valve 040 and the second check valve 410 that be arranged on pipeline. Referring to Fig. 2, when the second electromagnetic valve 410 is opened, the product water of reverse-osmosis treated unit 200 flows through first check valve the 230, second check valve 410 successively and enters stabilized pressure pump 220; When the second electromagnetic valve 410 is opened, the pure water stored in water cell 300 also is able to flow through the second check valve 410 and enters stabilized pressure pump 220.
Further, referring to Fig. 1, the connection pipeline between pretreatment unit 100 and reverse-osmosis treated unit 200 is provided with the 5th electromagnetic valve 050.
When the second electromagnetic valve 020 and the 5th electromagnetic valve 050 are closed, and when the first electromagnetic valve the 010, the 3rd electromagnetic valve 030 and the 4th electromagnetic valve 040 are in opening, the pure water stored in water cell 300 can pass through circulation waterway unit 400, enter reverse-osmosis treated unit 200 reverse osmosis filter element 210 is rinsed, discharge from the discharge outlet of reverse-osmosis treated unit 200 afterwards.
When the second electromagnetic valve the 020, the 3rd electromagnetic valve 030 and the 5th electromagnetic valve 050 are closed, when first electromagnetic valve 010 and the 4th electromagnetic valve 040 are in opening, the pure water stored in water cell 300 can pass through circulation waterway unit 400, enter reverse-osmosis treated unit 200 reverse osmosis filter element 210 is rinsed, be again introduced into circulation waterway unit 400 afterwards and be circulated.
Further, referring to Fig. 2, pretreatment unit 100 includes PP cotton filter element 110, active carbon filter core 120, PP cotton filter element 110 and active carbon filter core 120 and passes through placed in series. Tap water, after PP cotton filter element 110 and active carbon filter core 120 tentatively filter, could enter reverse-osmosis treated unit 200 by the 5th electromagnetic valve 050 and carry out further filtration treatment. 5th electromagnetic valve 050 is generally in normally off, just opens during controlling the water circulation.
Water cell 300 in above-described embodiment includes pressure pot 310 and the first high-voltage switch gear 320. Pressure pot 310 is connected with reverse-osmosis treated unit 200 and post-processing unit 500 respectively by pipeline, is used for storing pure water. First high-voltage switch gear 320 is arranged on the connection pipeline between pressure pot 310 and reverse-osmosis treated unit 200 and post-processing unit 500.
Post-processing unit 500 in above-described embodiment includes composite filter element 510 and the second high-voltage switch gear 520. Composite filter element 510 is connected with reverse-osmosis treated unit 200 and water cell 300 respectively by pipeline. Composite filter element 510 mainly comprises carbon rod and ultrafilter membrane filtrate, for the pure water after storage a period of time in the further product water processing reverse osmosis filter element 210 and pressure pot 310, is finally reached removal antibacterial, abnormal flavour etc. and acts on.
Second high-voltage switch gear 520 detects the water pressures on this water route when being mainly used in controlling the water circulation, and controls the 5th electromagnetic valve 050. During controlling the water circulation, when this branch road hydraulic pressure declines, the 5th electromagnetic valve 050 is opened, and stabilized pressure pump 220 operates, system controlling the water circulation. When this branch road hydraulic pressure raises, the 5th electromagnetic valve 050 cuts out, and stabilized pressure pump 220 shuts down, and system stops controlling the water circulation.
Referring to Fig. 2, the water cleaning systems that above-described embodiment the provides duty when circulation flushing is as follows:
Flushing action one: when controlling the water circulation completes or needs to be circulated flushing, the second electromagnetic valve the 020, the 5th electromagnetic valve 050 cuts out, and the first electromagnetic valve the 010, the 3rd electromagnetic valve the 030, the 4th electromagnetic valve 040 is opened, and the first high-voltage switch gear 320 is opened. Now in pressure pot 310, appropriate pure water flows out through first electromagnetic valve the 010, first high-voltage switch gear 320 and enters circulation waterway part; First check valve 230 stops pure water to enter the product water side of reverse osmosis filter element 210, pure water continues through the 4th electromagnetic valve 040 and the second check valve 410 after entering circulation waterway, now stabilized pressure pump 220 brings into operation, pure water is quickly pressed in reverse osmosis filter element 210, it is full of reverse osmosis filter element 210, the former water remained after controlling the water circulation in reverse osmosis filter element 210 and dense water are discharged by the 3rd electromagnetic valve 030. The pure least amount of water discharged in pressure pot 310 in this process is greater than the volume of whole circulation waterway pipeline and the volume sum of stabilized pressure pump 220, reverse osmosis filter element 210, but considers that its value of water saving can not be too big.
Flushing action two: after circulation flushing action one, close the 3rd electromagnetic valve 030, open the first electromagnetic valve 010, the first electromagnetic valve 010 is closed after pure water in pressure pot 310 is supplemented in circulation waterway again, stabilized pressure pump 220 continuous running makes the pure water flow at high speed in circulation waterway, and reverse osmosis filter element 210 is produced big shearing force in flow at high speed process and washed out by the pollutant in reverse osmosis filter element 210 by pure water. Pure water in pressure pot 310 regulates PH without composite filter element 510, in faintly acid, the precipitate of reverse osmosis filter element 210 is had good dissolubility. After the circulation flushing time set reaches, the 3rd electromagnetic valve 030 is opened, and flushing water is discharged; Open the first electromagnetic valve 010 afterwards, make the pure water in pressure pot 310 supplement pure water and enter circulation waterway. After circulation flushing completes, reverse osmosis filter element 210 is full of faintly acid pure water continued dissolution face precipitation pollutant, thus preventing residual dense water precipitation on reverse osmosis filter element 210 to be likely to.
Correspondingly, based on same inventive concept, the embodiment of the present invention also provides for the cleaning method of a kind of water cleaning systems, and the enforcement of the method can be realized by the water cleaning systems that above-described embodiment provides, and repeating part is no longer redundant later, specifically includes following steps:
S100, when water cleaning systems stops controlling the water circulation work or needs to be rinsed, the a part of pure water controlling to store in water cell enters reverse-osmosis treated unit by circulation waterway unit, in the pure water press-in reverse osmosis filter element entering described reverse-osmosis treated unit, the former water of residual and the mixing water of dense water in described reverse osmosis filter element will be discharged by stabilized pressure pump;
S200, after draining completes, the a part of pure water controlling to store in described water cell enters described reverse-osmosis treated unit by circulation waterway unit, make the circulation in the closed circuit that described circulation waterway unit and described reverse-osmosis treated unit form of this portion of pure water by described stabilized pressure pump, described reverse osmosis filter element is circulated flushing; Stopping after circulation flushing Preset Time, discharged by flushing water, finally control described water cell and again supplement pure water to described circulation waterway unit, making the water of residual in described closed circuit and described reverse osmosis filter element is pure water, rinses complete.
Above-mentioned circulation flushing process can be step S100 and step S200 two step, it is also possible to is their repeatedly circulation, and the circulation flushing time in step S200 can set as required.
Water cleaning systems provided by the invention and cleaning method thereof, the flushing great efforts to reverse osmosis filter element, it is possible to effectively remove the pollutant in reverse osmosis filter element. Meanwhile, it is capable to significantly slow the pollution of reverse osmosis filter element, extend the service life of reverse osmosis filter element.
Above example only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention. It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (11)
1. a water cleaning systems, including passing sequentially through the pretreatment unit (100) of placed in series, reverse-osmosis treated unit (200) and water cell (300), described reverse-osmosis treated unit (200) includes reverse osmosis filter element (210); It is characterized in that, also include circulation waterway unit (400);
Described circulation waterway unit (400) is connected by pipeline with described reverse-osmosis treated unit (200), forms a closed circuit;
Connection pipeline between described reverse-osmosis treated unit (200) and described water cell (300) is provided with the first electromagnetic valve (010); When described first electromagnetic valve (010) is in opening, the pure water stored in described water cell (300) can pass through described circulation waterway unit (400), enter described reverse-osmosis treated unit (200) described reverse osmosis filter element (210) is rinsed, discharge from the discharge outlet of described reverse-osmosis treated unit (200) or be again introduced into described circulation waterway unit (400) afterwards and be circulated.
2. water cleaning systems according to claim 1, it is characterised in that also include post-processing unit (500);
Described post-processing unit (500) is connected by pipeline with described reverse-osmosis treated unit (200) and described water cell (300);
Connection pipeline between described post-processing unit (500) and described reverse-osmosis treated unit (200) and described water cell (300) is provided with the second electromagnetic valve (020); When described second electromagnetic valve (020) is closed, and described first electromagnetic valve (010) is when being in opening, the pure water stored in described water cell (300) can pass through described circulation waterway unit (400), enter described reverse-osmosis treated unit (200) described reverse osmosis filter element (210) is rinsed, discharge from the discharge outlet of described reverse-osmosis treated unit (200) or be again introduced into described circulation waterway unit (400) afterwards and be circulated.
3. water cleaning systems according to claim 2, it is characterised in that described reverse-osmosis treated unit (200) also includes stabilized pressure pump (220) and the first check valve (230);
Described stabilized pressure pump (220) is arranged on the inlet channel of described reverse osmosis filter element (210);
Described first check valve (230) is arranged on the connection pipeline between described reverse osmosis filter element (210) and described circulation waterway unit (400), described water cell (300) and described post-processing unit (500);
Water in described pretreatment unit (100) or described circulation waterway unit (400) enters described reverse osmosis filter element (210) through described stabilized pressure pump (220), and the product water after described reverse osmosis filter element (210) is filtered enters described circulation waterway unit (400), described water cell (300) or described post-processing unit (500) by described first check valve (230).
4. water cleaning systems according to claim 3, it is characterised in that described reverse-osmosis treated unit (200) also includes effusion meter (240);
Described effusion meter (240) is arranged on the connection pipeline between described reverse osmosis filter element (210) and described stabilized pressure pump (220).
5. water cleaning systems according to claim 3, it is characterised in that described reverse-osmosis treated unit (200) also includes drainage pipeline;
Described drainage pipeline is connected with described reverse osmosis filter element (210), and described drainage pipeline is provided with the 3rd electromagnetic valve (030).
6. water cleaning systems according to claim 5, it is characterised in that described circulation waterway unit (400) includes the 4th electromagnetic valve (040) and the second check valve (410) that are arranged on pipeline;
When described 4th electromagnetic valve (040) is opened, the product water of described reverse-osmosis treated unit (200) can flow through described first check valve (230) successively, described second check valve (410) enters described stabilized pressure pump (220), or the pure water stored in described water cell (300) can flow through described second check valve (410) and enter described stabilized pressure pump (220).
7. water cleaning systems according to claim 6, it is characterised in that be provided with the 5th electromagnetic valve (050) on the connection pipeline between described pretreatment unit (100) and described reverse-osmosis treated unit (200);
When described second electromagnetic valve (020) and described 5th electromagnetic valve (050) are closed, and when described first electromagnetic valve (010), described 3rd electromagnetic valve (030) and described 4th electromagnetic valve (040) are in opening, the pure water stored in described water cell (300) can pass through described circulation waterway unit (400), enter described reverse-osmosis treated unit (200) described reverse osmosis filter element (210) is rinsed, discharge from the discharge outlet of described reverse-osmosis treated unit (200) afterwards;
When described second electromagnetic valve (020), described 3rd electromagnetic valve (030) and described 5th electromagnetic valve (050) are closed, when described first electromagnetic valve (010) and described 4th electromagnetic valve (040) are in opening, the pure water stored in described water cell (300) can pass through described circulation waterway unit (400), enter described reverse-osmosis treated unit (200) described reverse osmosis filter element (210) is rinsed, be again introduced into described circulation waterway unit (400) afterwards and be circulated.
8. the water cleaning systems according to any one of claim 1 to 7, it is characterised in that described pretreatment unit (100) includes PP cotton filter element (110) and active carbon filter core (120);
Described PP cotton filter element (110) and described active carbon filter core (120) pass through placed in series.
9. the water cleaning systems according to any one of claim 1 to 7, it is characterised in that described water cell (300) includes pressure pot (310) and the first high-voltage switch gear (320);
Described pressure pot (310) is connected with described reverse-osmosis treated unit (200) and described post-processing unit (500) respectively by pipeline, is used for storing pure water;
Described first high-voltage switch gear (320) is arranged on the connection pipeline between described pressure pot (310) and described reverse-osmosis treated unit (200) and described post-processing unit (500).
10. the water cleaning systems according to any one of claim 2 to 7, it is characterised in that described post-processing unit (500) includes composite filter element (510) and the second high-voltage switch gear (520);
Described composite filter element (510) is connected with described reverse-osmosis treated unit (200) and described water cell (300) respectively by pipeline;
Described second high-voltage switch gear (520) is arranged on the outlet conduit of described composite filter element (510).
11. the cleaning method of a water cleaning systems, it is characterised in that comprise the following steps:
S100, when water cleaning systems stops controlling the water circulation work or needs to be rinsed, the a part of pure water controlling to store in water cell enters reverse-osmosis treated unit by circulation waterway unit, in the pure water press-in reverse osmosis filter element entering described reverse-osmosis treated unit, the former water of residual and the mixing water of dense water in described reverse osmosis filter element will be discharged by stabilized pressure pump;
S200, after draining completes, the a part of pure water controlling to store in described water cell enters described reverse-osmosis treated unit by circulation waterway unit, make the circulation in the closed circuit that described circulation waterway unit and described reverse-osmosis treated unit form of this portion of pure water by described stabilized pressure pump, described reverse osmosis filter element is circulated flushing; Stopping after circulation flushing Preset Time, discharged by flushing water, finally control described water cell and again supplement pure water to described circulation waterway unit, making the water of residual in described closed circuit and described reverse osmosis filter element is pure water, rinses complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410583785.XA CN105621644B (en) | 2014-10-27 | 2014-10-27 | Water purification system and its cleaning method |
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Cited By (14)
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| CN105858812A (en) * | 2016-06-08 | 2016-08-17 | 北京四季沐歌太阳能技术集团有限公司 | Energy-saving water-saving reverse osmosis water making system |
| CN106693709A (en) * | 2017-02-10 | 2017-05-24 | 珠海格力电器股份有限公司 | Water purification system and control method thereof and water purifier |
| CN107244713A (en) * | 2017-08-15 | 2017-10-13 | 吴腾飞 | A kind of household water filter |
| CN107244714A (en) * | 2017-08-15 | 2017-10-13 | 吴腾飞 | A kind of water-purifying device |
| CN108097053A (en) * | 2017-12-29 | 2018-06-01 | 科勒(中国)投资有限公司 | Flushing mechanism, water purifier and purging method |
| CN108773920A (en) * | 2018-05-25 | 2018-11-09 | 珠海格力电器股份有限公司 | A kind of water cleaning systems, process for purifying water and device |
| CN109485187A (en) * | 2018-12-19 | 2019-03-19 | 珠海格力电器股份有限公司 | Water treatment system and its control method, purifier |
| CN109824158A (en) * | 2019-03-08 | 2019-05-31 | 宁波福特恩净水设备有限公司 | A kind of self-cleaning reverse osmosis membrane and water dispenser |
| CN110467280A (en) * | 2018-05-09 | 2019-11-19 | 佛山市顺德区美的饮水机制造有限公司 | Water purification system |
| CN110694336A (en) * | 2019-11-12 | 2020-01-17 | 珠海格力电器股份有限公司 | Filter element cleaning assembly, water purifier and filter element cleaning method |
| CN110937656A (en) * | 2019-10-17 | 2020-03-31 | 珠海市江河海水处理科技股份有限公司 | Full-automatic electroplating nickel wastewater zero-discharge equipment and operation method thereof |
| CN111470589A (en) * | 2020-05-28 | 2020-07-31 | 佛山市顺德区美的饮水机制造有限公司 | Water purifying device and cleaning method thereof |
| CN113929223A (en) * | 2020-06-29 | 2022-01-14 | 佛山市顺德区美的饮水机制造有限公司 | Water purification method of water purification system |
| CN114650968A (en) * | 2019-11-12 | 2022-06-21 | 伊莱克福有限公司 | Liquid purification system |
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| CN105858812B (en) * | 2016-06-08 | 2019-04-12 | 北京四季沐歌太阳能技术集团有限公司 | A kind of reverse osmosis water manufacturing system of energy-saving and water-saving |
| CN105858812A (en) * | 2016-06-08 | 2016-08-17 | 北京四季沐歌太阳能技术集团有限公司 | Energy-saving water-saving reverse osmosis water making system |
| CN106693709A (en) * | 2017-02-10 | 2017-05-24 | 珠海格力电器股份有限公司 | Water purification system and control method thereof and water purifier |
| CN107244714B (en) * | 2017-08-15 | 2021-09-24 | 淮北醴恒净水科技有限公司 | Water purifier device |
| CN107244713A (en) * | 2017-08-15 | 2017-10-13 | 吴腾飞 | A kind of household water filter |
| CN107244714A (en) * | 2017-08-15 | 2017-10-13 | 吴腾飞 | A kind of water-purifying device |
| CN108097053A (en) * | 2017-12-29 | 2018-06-01 | 科勒(中国)投资有限公司 | Flushing mechanism, water purifier and purging method |
| CN110467280A (en) * | 2018-05-09 | 2019-11-19 | 佛山市顺德区美的饮水机制造有限公司 | Water purification system |
| CN108773920A (en) * | 2018-05-25 | 2018-11-09 | 珠海格力电器股份有限公司 | A kind of water cleaning systems, process for purifying water and device |
| CN109485187A (en) * | 2018-12-19 | 2019-03-19 | 珠海格力电器股份有限公司 | Water treatment system and its control method, purifier |
| CN109824158A (en) * | 2019-03-08 | 2019-05-31 | 宁波福特恩净水设备有限公司 | A kind of self-cleaning reverse osmosis membrane and water dispenser |
| CN110937656A (en) * | 2019-10-17 | 2020-03-31 | 珠海市江河海水处理科技股份有限公司 | Full-automatic electroplating nickel wastewater zero-discharge equipment and operation method thereof |
| CN110694336A (en) * | 2019-11-12 | 2020-01-17 | 珠海格力电器股份有限公司 | Filter element cleaning assembly, water purifier and filter element cleaning method |
| CN114650968A (en) * | 2019-11-12 | 2022-06-21 | 伊莱克福有限公司 | Liquid purification system |
| CN110694336B (en) * | 2019-11-12 | 2023-09-05 | 珠海格力电器股份有限公司 | Filter element cleaning assembly, water purifier and filter element cleaning method |
| CN111470589A (en) * | 2020-05-28 | 2020-07-31 | 佛山市顺德区美的饮水机制造有限公司 | Water purifying device and cleaning method thereof |
| CN111470589B (en) * | 2020-05-28 | 2024-01-16 | 佛山市顺德区美的饮水机制造有限公司 | Water purifying device and cleaning method of water purifying device |
| CN113929223A (en) * | 2020-06-29 | 2022-01-14 | 佛山市顺德区美的饮水机制造有限公司 | Water purification method of water purification system |
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