CN102908899B - Reverse osmosis water purification system - Google Patents
Reverse osmosis water purification system Download PDFInfo
- Publication number
- CN102908899B CN102908899B CN201210251921.6A CN201210251921A CN102908899B CN 102908899 B CN102908899 B CN 102908899B CN 201210251921 A CN201210251921 A CN 201210251921A CN 102908899 B CN102908899 B CN 102908899B
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- water
- pure water
- filter
- reverse osmosis
- reverse
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/06—Specific process operations in the permeate stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/18—Specific valves
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/005—Valves
-
- 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
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- 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
- C02F2209/42—Liquid level
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The invention provides a reverse osmosis water purification system which can prolong the service life of a reverse osmosis membrane element. The reverse osmosis water purification system comprises the reverse osmosis membrane element, a pure water suck-back tank and a pure water tank, wherein the reverse osmosis membrane element is used for filtering water by utilizing a reverse osmosis principle; the pure water suck-back tank and the pure water tank are connected by an overflow port; a pure water inlet of the pure water suck-back tank is communicated with a pure water outlet of the reverse osmosis membrane element by a float ball check valve; the float ball check valve is used for closing the pure water inlet when water in the pure water suck-back tank reaches a low water level; and the pure water tank is provided with a pure water output port. When the system stops working, the pure water in the pure water suck-back tank enters the reverse osmosis membrane element, scales are difficult to form and the pure water can take a cleaning effect on scale deposit and other pollutants in the reverse osmosis membrane element, so that the reverse osmosis water purification system is helpful to prolong the service life of the reverse osmosis membrane element.
Description
Technical field
The present invention relates to water technology, relate to especially a kind of reverse osmosis purified water system.
Background technology
The common application form of reverse osmosis technology in water treatment is to make reverse-osmosis membrane element, reverse-osmosis membrane element generally has a columniform pressure vessel as housing, its inside has one with the central tube in a plurality of holes and twists in alternately laminated multilayer reverse osmosis membrane on central tube and the material such as filter, utilizes principle of reverse osmosis to realize water purification.
In use, if the reverse osmosis membrane in reverse-osmosis membrane element becomes dry, can affect its result of use even causes reverse osmosis membrane to lose efficacy, so be at present when reverse-osmosis membrane element is during in off working state for the conventional maintenance mode of reverse-osmosis membrane element, make to be full of in housing running water, thereby prevent that reverse osmosis membrane from becoming dry, to keep the performance of reverse-osmosis membrane element.In purification process, reverse osmosis membrane can easily form on surface the dirty stifled and inorganic scaling of impurity etc., thereby has affected the service life of reverse-osmosis membrane element.
Summary of the invention
In view of this, the invention provides a kind of reverse osmosis purified water system, the service life that can improve reverse-osmosis membrane element.
For achieving the above object, the invention provides following technical scheme:
A kind of reverse osmosis purified water system, comprise the reverse-osmosis membrane element that utilizes principle of reverse osmosis to filter water, described reverse osmosis purified water system also comprises pure water resorption water tank and pure water water tank, wherein: described pure water resorption water tank is connected by overfall with described pure water water tank; The pure water entrance of described pure water resorption water tank is communicated with the pure water port of export of described reverse-osmosis membrane element by floating ball one-way valve, closes described pure water entrance when described floating ball one-way valve arrives low water level for the water in described pure water resorption water tank; Described pure water water tank has pure water delivery outlet.
Alternatively, the volume of described pure water resorption water tank is greater than the water capacity in described reverse-osmosis membrane element.
Alternatively, also comprise a post-filter, between the pure water port of export of described floating ball one-way valve and described reverse-osmosis membrane element.
Alternatively, the filter core of described post-filter is active carbon filter core or melt-blown filter.
Alternatively, also comprise water pump, entering water electromagnetic valve and controller; In described pure water water tank, there is high water level switch, and: the former water inlet of described reverse-osmosis membrane element is connected with described entering water electromagnetic valve via described water pump; A controlled quentity controlled variable output of described controller is connected with the controlled end of described entering water electromagnetic valve, another controlled quentity controlled variable output is connected with the controlled end of described water pump, a digital quantity receiving terminal is connected with described high water level switch, described controller is for after receiving the signal of described high water level switch transmission, and output is for closing the controlled quentity controlled variable of described entering water electromagnetic valve.
Alternatively, in described pure water water tank, also have low-water level switch, this low-water level switch is connected with another digital quantity receiving terminal of described controller.
Alternatively, also comprise the first filter, the second filter and the 3rd filter of series connection successively, wherein, the input port of described the first filter is as running water input, and the delivery outlet of described the 3rd filter is connected with described entering water electromagnetic valve; Described the first filter adopts melt-blown filter; Described the second filter adopts granular activated carbon filter core; Described the 3rd filter adopts melt-blown filter.
Alternatively, on the pipeline between described the first filter and described the second filter, have a low tension switch, this low tension switch is connected with another digital quantity receiving terminal of described controller.
According to technical scheme of the present invention, be provided with the pure water resorption water tank being communicated with pure water water tank, when reverse-osmosis membrane element quits work, by pure water resorption, there is osmosis, the surface contaminants of reverse-osmosis membrane element is dissolved, rinsed and from wastewater outlet discharge, thereby played, extend the reverse-osmosis membrane element effect in service life.
Accompanying drawing explanation
Accompanying drawing, for understanding the present invention better, does not form inappropriate limitation of the present invention.Wherein:
Fig. 1 is according to the schematic diagram of the chief component of the reverse osmosis purified water system of the embodiment of the present invention;
Fig. 2 is according to the schematic diagram of a preferred structure of the reverse osmosis purified water system of the embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, one exemplary embodiment of the present invention is explained, comprising the various details of the embodiment of the present invention, to help understanding, they should be thought to be only exemplary.Therefore, those of ordinary skills will be appreciated that, can make various changes and modification to the embodiments described herein, and can not deviate from scope and spirit of the present invention.Equally, for clarity and conciseness, in following description, omitted the description to known function and structure.
Fig. 1 is according to the schematic diagram of the chief component of the reverse osmosis purified water system of the embodiment of the present invention.As shown in Figure 1, in embodiments of the present invention, reverse osmosis purified water system mainly comprises reverse-osmosis membrane element 11, pure water resorption water tank 12, pure water water tank 13, and wherein pure water resorption water tank 12 is connected by overfall 14 with pure water water tank 13.There is a floating ball one-way valve 16 at pure water entrance 121 places of pure water resorption water tank, and pure water entrance 121 is communicated with the pure water port of export 111 of reverse-osmosis membrane element 11 by this floating ball one-way valve 16.When floating ball one-way valve 16 arrives low water level for water in pure water resorption water tank, close pure water entrance 121, specifically, when water level declines, the ball float 161 in floating ball one-way valve also declines thereupon, and water level drops to ball float 161 when minimum and blocks pure water entrance 121.
In addition, as shown in Figure 1, wastewater outlet 113 places of reverse-osmosis membrane element are connected with a waste water proportioner 17, are used for regulating the ratio of pure water and waste water.Pure water in pure water water tank 13 can outwards be supplied, for example, at pure water delivery outlet 131 places of pure water water tank 13, by pipeline, connect a tap 18.
For the course of work of the reverse osmosis purified water system of the present embodiment, make an explanation below.In water process processed, former water enters reverse-osmosis membrane element 11 by the former water inlet 112 of reverse-osmosis membrane element 11, through obtaining pure water after reverse-osmosis treated, pure water enters pure water resorption water tank 12 from pure water outlet 111, water level in pure water resorption water tank 12 arrives after overfall 14, pure water enters pure water water tank 13 by overfall 14, realizes and provides pure water to outside.
Can find out that the reverse osmosis purified water system of the present embodiment is when providing pure water to outside, the water level of pure water resorption water tank 12 remains on the position of overfall 14.When reverse osmosis purified water system quits work, under pressure differential between pure water resorption water tank 12 and reverse-osmosis membrane element 11 and the effect of the permeable pressure head in reverse-osmosis membrane element 11, pure water in pure water resorption water tank 12 enters from reverse-osmosis membrane element 11 via pure water outlet 111, and from pure water side, be penetrated into former water side in reverse-osmosis membrane element 11, finally from the wastewater outlet 113 of reverse-osmosis membrane element 11, discharge, in this process, the water of the inner former water side of reverse-osmosis membrane element 11, its salt content will reduce gradually, until consistent with the pure water salt content in pure water tank.Like this, the water of this low saline salinity of former water side itself is less scaling, contributes to extend the service life of reverse-osmosis membrane element.
And, dissolution is played in the inorganic salts fouling that the water of the low saline salinity of the former water side in reverse-osmosis membrane element 11 can also produce reverse osmosis membrane surface, further prevent membrane component fouling, can clean other pollutant on membrane component surface, thereby contribute to further to extend the service life of reverse-osmosis membrane element simultaneously.
Can find out for pure water resorption water tank 12, its volume is preferably greater than the amount of the water that reverse-osmosis membrane element 11 can hold.As previously mentioned, when reverse osmosis purified water system quits work, the water in pure water resorption water tank 12 enters reverse-osmosis membrane element 11 and discharges from wastewater outlet 113.In this process, the liquid level of pure water resorption water tank 12 declines, until pure water entrance 121 is closed by floating ball one-way valve 16.Now, due to the effect of external pressure, the water in reverse-osmosis membrane element 11 also stops discharging.Can find out if the volume of pure water resorption water tank 12 is too little, when pure water entrance 121 is closed, the water of the low saline salinity in reverse-osmosis membrane element 11 is still not many, likely still make reverse osmosis membrane partly become dry, also likely affect dissolving and the effect to the cleaning of other pollutants to the surperficial inorganic salts fouling of reverse osmosis membrane.
Fig. 2 is according to the schematic diagram of a preferred structure of the reverse osmosis purified water system of the embodiment of the present invention.As shown in Figure 2, in order to improve clean-up effect, also have a post-filter 21 between floating ball one-way valve 16 and the pure water port of export 111 of reverse-osmosis membrane element 11, its filter core can adopt active carbon filter core or melt-blown filter (PP filter core).
Former water inlet place at reverse-osmosis membrane element 11 can connect a water pump 22, at water pump 22 opposite sides, can connect an entering water electromagnetic valve.In pure water water tank 13, there is a high water level switch 24.This reverse osmosis purified water system also has a controller (not shown) in addition, can adopt various microprocessors to realize.
Two controlled quentity controlled variable outputs of controller are connected with the controlled end of entering water electromagnetic valve 23 with water pump 22 respectively, thereby control the start and stop of water pump 22 and the break-make of entering water electromagnetic valve 23.A digital quantity receiving terminal of controller is connected with high water level switch 24, like this when the water level of pure water tank 13 reaches the altitude measurement of high water level switch 24, high water level switch 24 sends signal, and controller cuts out entering water electromagnetic valve after receiving, and water pump 22 also cuts out.Now system stops water purification work, and outwards the pure water of supply is the interior remaining water of pure water tank 13.
In pure water water tank 13, also have a low-water level switch 25 being connected with the digital quantity receiving terminal of controller, its altitude measurement will be lower than the altitude measurement of high water level switch 24.In system, stop water purification work, and when pure water tank 13 is still outwards supplied pure water, its water level continue to reduce, when water level is during lower than the altitude measurement of low-water level switch 25, low-water level switch 25 is to controller transmitted signal, and controller is received rear unlatching water pump 22 and opened entering water electromagnetic valve 23.
Running water can be supplied by water tank 20, successively by the first filter 26, the second filter 27 and the 3rd filter 28.The delivery outlet of the 3rd filter 28 is connected with entering water electromagnetic valve 23.The first filter 26 can adopt the PP filter core of 5 μ m.The second filter 27 can adopt 85C granular activated carbon filter core.The 3rd filter 28 can adopt the PP filter core of 1 μ m.Certainly, the various filter cores here can be selected according to actual conditions other specification.
On the pipeline of 27 of the first filter 26 and the second filter, can fill a low tension switch 29, this low tension switch 29 is connected with another digital quantity receiving terminal of controller.When running water stop supplies, low tension switch 29 detects hydraulic pressure to be reduced, and then gives controller transmitted signal, and controller after receiving this signal stops water pump 22, and closes entering water electromagnetic valve 23.
The above-mentioned specific embodiment, does not form limiting the scope of the invention.Those skilled in the art should be understood that, depend on designing requirement and other factors, various modifications, combination, sub-portfolio can occur and substitute.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection domain of the present invention.
Claims (8)
1. a reverse osmosis purified water system, comprises the reverse-osmosis membrane element that utilizes principle of reverse osmosis to filter water, it is characterized in that, described reverse osmosis purified water system also comprises pure water resorption water tank and pure water water tank, wherein:
Described pure water resorption water tank is connected by overfall with described pure water water tank;
The pure water entrance of described pure water resorption water tank is communicated with the pure water port of export of described reverse-osmosis membrane element by floating ball one-way valve, closes described pure water entrance when described floating ball one-way valve arrives low water level for the water in described pure water resorption water tank;
Described pure water water tank has pure water delivery outlet.
2. reverse osmosis purified water system according to claim 1, is characterized in that, the volume of described pure water resorption water tank is greater than the water capacity in described reverse-osmosis membrane element.
3. reverse osmosis purified water system according to claim 1 and 2, is characterized in that, also comprises a post-filter, between the pure water port of export of described floating ball one-way valve and described reverse-osmosis membrane element.
4. reverse osmosis purified water system according to claim 3, is characterized in that, the filter core of described post-filter is active carbon filter core or melt-blown filter.
5. reverse osmosis purified water system according to claim 1 and 2, is characterized in that, also comprises water pump, entering water electromagnetic valve and controller; In described pure water water tank, there is high water level switch, and:
The former water inlet of described reverse-osmosis membrane element is connected with described entering water electromagnetic valve via described water pump;
A controlled quentity controlled variable output of described controller is connected with the controlled end of described entering water electromagnetic valve, another controlled quentity controlled variable output is connected with the controlled end of described water pump, a digital quantity receiving terminal is connected with described high water level switch, described controller is for after receiving the signal of described high water level switch transmission, and output is for closing the controlled quentity controlled variable of described entering water electromagnetic valve.
6. reverse osmosis purified water system according to claim 5, is characterized in that, in described pure water water tank, also has low-water level switch, and this low-water level switch is connected with another digital quantity receiving terminal of described controller.
7. reverse osmosis purified water system according to claim 5, is characterized in that, also comprises the first filter, the second filter and the 3rd filter of series connection successively, wherein,
The input port of described the first filter is as running water input, and the delivery outlet of described the 3rd filter is connected with described entering water electromagnetic valve;
Described the first filter adopts melt-blown filter;
Described the second filter adopts granular activated carbon filter core;
Described the 3rd filter adopts melt-blown filter.
8. reverse osmosis purified water system according to claim 7, is characterized in that, on the pipeline between described the first filter and described the second filter, has a low tension switch, and this low tension switch is connected with another digital quantity receiving terminal of described controller.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251921.6A CN102908899B (en) | 2012-07-20 | 2012-07-20 | Reverse osmosis water purification system |
| PCT/CN2013/079718 WO2014012520A1 (en) | 2012-07-20 | 2013-07-19 | Reverse osmosis water purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251921.6A CN102908899B (en) | 2012-07-20 | 2012-07-20 | Reverse osmosis water purification system |
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| Publication Number | Publication Date |
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| CN102908899A CN102908899A (en) | 2013-02-06 |
| CN102908899B true CN102908899B (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210251921.6A Active CN102908899B (en) | 2012-07-20 | 2012-07-20 | Reverse osmosis water purification system |
Country Status (2)
| Country | Link |
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| CN (1) | CN102908899B (en) |
| WO (1) | WO2014012520A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108554180A (en) * | 2018-04-25 | 2018-09-21 | 张家港市金马星机械制造有限公司 | Increase the system in reverse osmosis membrane service life |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102908899B (en) * | 2012-07-20 | 2014-09-17 | 艾欧史密斯（上海）水处理产品有限公司 | Reverse osmosis water purification system |
| CN106698593A (en) * | 2016-09-13 | 2017-05-24 | 龙吉林 | Method for refreshing water of water tank of water purifier |
| CN106345306B (en) * | 2016-10-24 | 2020-01-10 | 艾欧史密斯(中国)热水器有限公司 | Control method of water purifier |
| CN108467086A (en) * | 2017-02-23 | 2018-08-31 | 青岛经济技术开发区海尔热水器有限公司 | A kind of Novel water-purifying system |
| CN108467087A (en) * | 2017-02-23 | 2018-08-31 | 青岛经济技术开发区海尔热水器有限公司 | A kind of water cleaning systems |
| CN108654392B (en) * | 2017-03-30 | 2023-09-01 | 佛山市顺德区美的饮水机制造有限公司 | Spiral wound reverse osmosis membrane element and water purifier |
| CN110282702A (en) * | 2019-08-05 | 2019-09-27 | 梁晶 | A kind of long-life reverse osmosis filter core water purification system |
| CN112607887A (en) * | 2020-12-11 | 2021-04-06 | 毕宝艺 | Water purification system based on forward osmosis |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102908899A (en) | 2013-02-06 |
| WO2014012520A1 (en) | 2014-01-23 |
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