CN203095731U - Reverse osmosis pure water system - Google Patents
Reverse osmosis pure water system Download PDFInfo
- Publication number
- CN203095731U CN203095731U CN201220712259.5U CN201220712259U CN203095731U CN 203095731 U CN203095731 U CN 203095731U CN 201220712259 U CN201220712259 U CN 201220712259U CN 203095731 U CN203095731 U CN 203095731U
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- water
- pure water
- backflow
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 200
- 238000001223 reverse osmosis Methods 0.000 title abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims abstract description 18
- 238000010992 reflux Methods 0.000 claims abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010612 desalination reaction Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000002158 endotoxin Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000012633 leachable Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Separation Using Semi-Permeable Membranes (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses a reverse osmosis pure water system which comprises a raw water tank, a precision filter, a primary RO reverse osmosis element, a pure water tank, a pure water backflow structure, a raw water electroconductibility admeasuring apparatus and a pure water electroconductibility admeasuring apparatus, wherein the raw water tank is used for accommodating raw water, and the precision filter is used for pretreating raw water; the raw water tank is connected with the precision filter, the precision filter is connected with the primary RO reverse osmosis element, the primary RO reverse osmosis reverse osmosis element is connected with the pure water tank, and the pure water tank is connected with the raw water tank through the pure water backflow structure so as to realize the backflow of pure water; the pure water backflow structure comprises a reflux backflow booster pump, a backflow one-way valve, a backflow regulating valve and a backflow meter; and the pure water tank is connected with the backflow booster pump, the backflow booster pump is connected with the backflow one-way valve, the backflow one-way valve is connected with the backflow regulating valve, the backflow regulating valve is connected with the backflow flow meter, and the backflow flow meter is connected with the raw water raw water tank. Because of adopting the structure, the reverse osmosis pure water system disclosed by the utility model can produce higher-quality pure water conforming to requirements, reduce the cost, reduce the investment and can save the running cost.
Description
Technical field
The utility model relates to the water treating equipment technical field, is specifically related to a kind of reverse osmose pure-water system.
Background technology
RO reverse osmosis (RO:Reverse Osmosis, reverse osmosis) be the solvent (general Chang Zhishui) in the solution to be separated by reverse osmosis membrane (RO film) with enough pressure, direction is opposite with the infiltration direction, can use that reverse osmosis method greater than osmotic pressure separates, purification and concentrated solution.Utilize reverse osmosis technology can effectively remove dissolved salt, colloid in the water, impurity such as bacterium, virus, bacterial endotoxin and most of organism.The main separate object of RO film is the ion range in the solution, need not chemical and gets final product salt in the effective elimination water, and system's desalination rate is generally more than 98%.So reverse osmosis be state-of-the-art also be a kind of desalination mode of energy-saving and environmental protection, also become the pre-desalinating process of main flow.
The RO reverse osmosis equipment is that the reverse osmose pure-water system produces a major equipment in the pure water process, and because of characteristics widespread uses such as its stable performance, ratio of desalinization height, system's ratio of desalinization and annually has certain decay generally about 98%.There is following shortcoming in present reverse osmose pure-water system: be connected with one-level RO ro components by strainer between raw water box and the pure water case, thereby the raw water filtration in the raw water box is become pure water in the pure water case; Connect by secondary RO ro components between pure water case and the raw water box, when pure water is undesirable in the pure water case (for example at former water conductivity greater than 600 μ s/cm, and require pure water conductivity less than 10 μ s/cm), generally pure water is turned back in the raw water box by secondary RO ro components, pure water and former water are supplied to strainer and one-level RO ro components after being in harmonious proportion again, to reach the purpose of former water pretreatment.Take secondary RO ro components to reflux, investment is big and working cost is high, but does not have the effect that is directly proportional with this investment to reducing former electrical conductivity of water, and cost performance is not high.
The utility model content
The purpose of this utility model is to disclose a kind of reverse osmose pure-water system, solves to take secondary RO ro components to reflux the big and high problem of working cost of investment.
For achieving the above object, the utility model adopts following technical scheme:
A kind of reverse osmose pure-water system comprises the raw water box that is used to hold former water, the accurate filter that is used for the former water of pre-treatment, one-level RO ro components, pure water case, pure water return-flow structure, former water conductivity survey meter and pure water conductivity survey meter; Raw water box connects accurate filter, and this accurate filter connects one-level RO ro components, and this one-level RO ro components connects the pure water case, and this pure water case connects raw water box by the pure water return-flow structure and realizes that pure water refluxes; The pure water return-flow structure comprises backflow topping-up pump, backflow check valve, return valve and return flow meter; The pure water case connects the backflow topping-up pump, and this backflow topping-up pump connects the backflow check valve, and this backflow check valve connects return valve, and this return valve connects the return flow meter, and this return flow meter connects described raw water box.
Further, described former water conductivity survey meter is located at the former water water outlet of described accurate filter, and described pure water conductivity survey meter is located at the pure water water outlet of described one-level RO ro components.
Further, described former water conductivity survey meter and/or described pure water conductivity survey meter are the on-line monitoring conductivity meter, and this on-line monitoring conductivity meter is provided with liquid crystal display and data outputting module.
Further, described backflow topping-up pump is the stainless steel stage chamber pump.
Further, described return valve is the variable valve of stainless steel.
Further, described return flow is counted the LZM glass rotameter.
Further, described backflow topping-up pump, described backflow check valve, described return valve and described return flow meter are communicated with by return line, and this return line is the pipeline that rigid polyvinyl chloride U-PVC or SUS304 stainless steel are made.
Further, be connected with the high-pressure pump automatic regulating valve by strainer high-pressure pump, high-pressure pump check valve successively between described accurate filter and the described one-level RO ro components, between accurate filter and strainer high-pressure pump, be provided with the strainer pressure transmitter.
Further, between described high-pressure pump automatic regulating valve and described one-level RO ro components, be provided with the RO pressure transmitter.
Further, described one-level RO ro components is connected the concentrated water discharge mouth by dense water regulating valve assembly with concentrated stream amount meter successively.
Compared with prior art, the beneficial effects of the utility model:
The utility model adopts above structure, need not secondary RO reverse osmosis operation, only needs to adopt one-level RO reverse osmosis operation to handle, the pure water that also can output meets the higher quality of demand, reduced secondary RO reverse osmosis operation simultaneously, reduced cost, reduced investment and can save working cost.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the synoptic diagram of a kind of reverse osmose pure-water system embodiment of the utility model;
Among the figure, the 1-raw water box; The 2-accurate filter; The manual gas barrier of 21-; The 22-back pressure transducer; 3-one-level RO ro components; 4-pure water case; 41-pure water water outlet; 5-pure water return-flow structure; 51-backflow topping-up pump; 52-backflow check valve; The 53-return valve; 54-return flow meter; 6-strainer high-pressure pump; 7-high-pressure pump check valve; 8-high-pressure pump automatic regulating valve; 9-strainer pressure transmitter; The former water conductivity survey meter of 10-; 11-pure water conductivity survey meter; 12-pure water case under meter; The dense water regulating valve assembly of 13-; 14-concentrated stream amount meter; 15-concentrated water discharge mouth; The 16-RO pressure transmitter; The dense water pressure sensor of 17-.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.
A kind of reverse osmose pure-water system comprises the raw water box that is used to hold former water, the accurate filter that is used for the former water of pre-treatment, one-level RO ro components, pure water case, pure water return-flow structure, former water conductivity survey meter and pure water conductivity survey meter; Raw water box connects accurate filter, and this accurate filter connects one-level RO ro components, and this one-level RO ro components connects the pure water case, and this pure water case connects raw water box by the pure water return-flow structure and realizes that pure water refluxes; The pure water return-flow structure comprises backflow topping-up pump, backflow check valve, return valve and return flow meter; The pure water case connects the backflow topping-up pump, and this backflow topping-up pump connects the backflow check valve, and this backflow check valve connects return valve, and this return valve connects the return flow meter, and this return flow meter connects described raw water box.
A kind of reverse osmose pure-water of embodiment system as shown in Figure 1 comprises raw water box 1, is used to handle accurate filter 2, one-level RO ro components 3, the pure water case 4 of former water and is used to improve the pure water return-flow structure 5 of reverse osmose pure-water system pure water water quality; Raw water box 1 connects accurate filter 2, and accurate filter 2 connects one-level RO ro components 3, and this one-level RO ro components 3 connects pure water case 4, and pure water case 4 connects raw water box 1 by pure water return-flow structure 5.Pure water case 4 is provided with pure water water outlet 41.The water outlet of accurate filter 2 is provided with former water conductivity survey meter 10, is used to measure the specific conductivity of accurate filter 2 treated waters; The water outlet of one-level RO ro components 3 is provided with pure water conductivity survey meter 11, is used to measure pure water conductivity, judges whether pure water meets user's demand.
Pure water return-flow structure 5 comprises backflow topping-up pump 51, backflow check valve 52, return valve 53, return flow meter 54 and return line.Return line one end is communicated with pure water case 4 and the other end is communicated with raw water box 1.Connect successively on the return line backflow topping-up pump 51, backflow check valve 52, return valve 53 and return flow meter 54 are used to control the flow direction and the flow that pure water refluxes.In the present embodiment, pure water case 4 connects backflow topping-up pump 51, and backflow topping-up pump 51 connects backflow check valve 52, and backflow check valve 52 connects return valve 53, the return flow meter 54 that return valve 53 connects, and return flow meter 54 connects raw water box 1.Read mixed former electrical conductivity of water by former water conductivity survey meter 10, read the specific conductivity of pure water by pure water conductivity survey meter 11, in conjunction with customer requirements, judge whether to need to start pure water return-flow structure 5, judge the degree of return valve 53 foldings simultaneously in conjunction with return flow meter 54, thereby regulate the pure water amount that is back in the raw water box 1.
Backflow topping-up pump 51 is selected the stainless steel stage chamber pump for use, and model is the CHL centrifugal pump of horizontal axis, and flow is selected 1/3 of pure water amount for use, and lift is 20 meters.Return valve 53 is selected the stainless steel variable valve for use, regulates flow accuracy 1%.Return flow meter 54 is selected the LZM glass rotameter for use, and the under meter scale upper limit equals the pure water water yield.Backflow topping-up pump 51, backflow check valve 52, return valve 53 and return flow meter 54 are connected by return line, this return line is selected U-PVC(unplasticized polyvinylchloride for use, rigid polyvinyl chloride) or the SUS304 stainless steel, forbidding has the tubing of leachable.Former water conductivity survey meter 10 and pure water conductivity survey meter 11 can be selected CM-230 on-line monitoring conductivity meter for use, have liquid crystal display and data outputting module, realize liquid-crystal display and data output function.SUS304:SUS is Japanese standard of materials in the literary composition, and 304 stainless steels are stainless trades mark of producing according to U.S. ASTM standard, and 304 are equivalent to 0Cr19Ni9 (0Cr18Ni9) stainless steel of China.
Connect by strainer high-pressure pump 6, high-pressure pump check valve 7, high-pressure pump automatic regulating valve 8 successively between accurate filter 2 and the one-level RO ro components 3, between accurate filter 2 and strainer high-pressure pump 6, be provided with strainer pressure transmitter 9 and above-mentioned former water conductivity survey meter 10.Between high-pressure pump automatic regulating valve 8 and one-level RO ro components 3, be provided with RO pressure transmitter 16.The back pressure transducer 22 that accurate filter 2 is provided with manual gas barrier 21 and cooperates with this manual gas barrier 21.Accurate filter 2(in the present embodiment is called security personnel's strainer again), cylinder shell generally adopts the stainless steel manufacturing, tubulose filter cores such as the inner PP of employing melts and sprays, line burns, folding, titanium filter core, active carbon filter core are as filtering element, select different filtering elements according to different filtration mediums and design technology, to reach the requirement of effluent quality.
One-level RO ro components 3 connects pure water case 4 by pure water case under meter 12, is provided with above-mentioned pure water conductivity survey meter 11 between one-level RO ro components 3 and the pure water case under meter 12.One-level RO ro components 3 is connected concentrated water discharge mouth 15 by dense water regulating valve assembly 13 with concentrated stream amount meter 14 successively.Be provided with dense water pressure sensor 17 between one-level RO ro components 3 and the dense water regulating valve assembly 13.Dense water regulating valve assembly 13 comprises moving variable valve 131 of dense sailor and dense water automatic regulating valve 132, and moving variable valve 131 of dense sailor and dense water automatic regulating valve 132 are parallel with one another.
Other structure of a kind of reverse osmose pure-water of present embodiment system is referring to prior art.
As to the further specifying of present embodiment, its working process now is described: the former water in the raw water box 1 filters out pure water through accurate filter 2 and one-level RO ro components 3; Pure water is discharged from the pure water water outlet 41 of pure water case 4 when pure water water quality reaches requiring of user; When pure water water quality does not reach requiring of user, at first starting backflow topping-up pump 5 makes the pure water in the pure water case 4 advance raw water box 1 by 5 backflows of pure water return-flow structure, slowly regulate return valve 53 then, former water conductivity in the raw water box 1 can slowly descend at this moment, when specific conductivity drop to certain value (conductivity data for the required specific conductivity of user's pure water divided by 2%; The ratio of desalinization of one-level RO ro components 3 is set at 98%) time, can stop to regulate return valve 53, pure water flows into raw water box 1 by the return flow of this moment, the pretreated water that regulates in the raw water box 1 flows into again through accurate filter 2 and one-level RO ro components 3 then, filters out satisfactory pure water.
Reverse osmose pure-water system shown in the present embodiment does not need secondary RO ro components, then can produce the high-quality pure water that meets customer requirements.In the raw water quality specific conductivity greater than 600 μ s/cm, require all can adopt the technical scheme shown in the present embodiment under the situation of pure water conductivity less than 10 μ s/cm, can satisfy user's technical requirements, when reducing cost of investment, also can cut operating costs.
The utility model is not limited to above-mentioned embodiment, if various changes of the present utility model or modification are not broken away from spirit and scope of the present utility model, if these are changed and modification belongs within claim of the present utility model and the equivalent technologies scope, then the utility model also is intended to comprise these changes and modification.
Claims (10)
1. a reverse osmose pure-water system is characterized in that: comprise the raw water box that is used to hold former water, the accurate filter that is used for the former water of pre-treatment, one-level RO ro components, pure water case, pure water return-flow structure, former water conductivity survey meter and pure water conductivity survey meter; Raw water box connects accurate filter, and this accurate filter connects one-level RO ro components, and this one-level RO ro components connects the pure water case, and this pure water case connects raw water box by the pure water return-flow structure and realizes that pure water refluxes; The pure water return-flow structure comprises backflow topping-up pump, backflow check valve, return valve and return flow meter; The pure water case connects the backflow topping-up pump, and this backflow topping-up pump connects the backflow check valve, and this backflow check valve connects return valve, and this return valve connects the return flow meter, and this return flow meter connects described raw water box.
2. reverse osmose pure-water system according to claim 1, it is characterized in that: described former water conductivity survey meter is located at the former water water outlet of described accurate filter, and described pure water conductivity survey meter is located at the pure water water outlet of described one-level RO ro components.
3. as reverse osmose pure-water system as described in the claim 2, it is characterized in that: described former water conductivity survey meter and/or described pure water conductivity survey meter are the on-line monitoring conductivity meter, and this on-line monitoring conductivity meter is provided with liquid crystal display and data outputting module.
4. reverse osmose pure-water system according to claim 1, it is characterized in that: described backflow topping-up pump is the stainless steel stage chamber pump.
5. reverse osmose pure-water system according to claim 1, it is characterized in that: described return valve is the variable valve of stainless steel.
6. reverse osmose pure-water system according to claim 1, it is characterized in that: described return flow is counted the LZM glass rotameter.
7. reverse osmose pure-water system according to claim 1, it is characterized in that: described backflow topping-up pump, described backflow check valve, described return valve and described return flow meter are communicated with by return line, and this return line is the pipeline that rigid polyvinyl chloride U-PVC or SUS304 stainless steel are made.
8. reverse osmose pure-water system according to claim 1, it is characterized in that: be connected with the high-pressure pump automatic regulating valve by strainer high-pressure pump, high-pressure pump check valve successively between described accurate filter and the described one-level RO ro components, between accurate filter and strainer high-pressure pump, be provided with the strainer pressure transmitter.
9. as reverse osmose pure-water system as described in the claim 8, it is characterized in that: between described high-pressure pump automatic regulating valve and described one-level RO ro components, be provided with the RO pressure transmitter.
10. reverse osmose pure-water system according to claim 1, it is characterized in that: described one-level RO ro components is connected the concentrated water discharge mouth by dense water regulating valve assembly with concentrated stream amount meter successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220712259.5U CN203095731U (en) | 2012-12-20 | 2012-12-20 | Reverse osmosis pure water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220712259.5U CN203095731U (en) | 2012-12-20 | 2012-12-20 | Reverse osmosis pure water system |
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| Publication Number | Publication Date |
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| CN203095731U true CN203095731U (en) | 2013-07-31 |
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| CN201220712259.5U Expired - Fee Related CN203095731U (en) | 2012-12-20 | 2012-12-20 | Reverse osmosis pure water system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577923A (en) * | 2018-12-03 | 2019-04-05 | 重庆大学 | It is a kind of for measure coal-bed gas exploitation test when reverse irrigation amount device |
| CN114044557A (en) * | 2021-11-12 | 2022-02-15 | 广东傲美智能科技有限公司 | Water purification system |
| CN114163002A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
| CN114162900A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
| CN114162997A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
| CN114162998A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
| CN114163003A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
| CN114162995A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
-
2012
- 2012-12-20 CN CN201220712259.5U patent/CN203095731U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577923A (en) * | 2018-12-03 | 2019-04-05 | 重庆大学 | It is a kind of for measure coal-bed gas exploitation test when reverse irrigation amount device |
| CN114163002A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
| CN114162900A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
| CN114162997A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
| CN114162998A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
| CN114163003A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
| CN114162995A (en) * | 2021-08-31 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
| CN114044557A (en) * | 2021-11-12 | 2022-02-15 | 广东傲美智能科技有限公司 | Water purification system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20151220 |
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| EXPY | Termination of patent right or utility model |