CN106745898B - Reverse osmosis water production system and method for maintaining water quality - Google Patents
Reverse osmosis water production system and method for maintaining water quality Download PDFInfo
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- CN106745898B CN106745898B CN201611232061.6A CN201611232061A CN106745898B CN 106745898 B CN106745898 B CN 106745898B CN 201611232061 A CN201611232061 A CN 201611232061A CN 106745898 B CN106745898 B CN 106745898B
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- water
- pure water
- pipeline
- filter element
- water outlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 238
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title description 9
- 239000012528 membrane Substances 0.000 claims abstract description 76
- 238000001514 detection method Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000000108 ultra-filtration Methods 0.000 claims description 3
- 238000012372 quality testing Methods 0.000 claims 1
- 230000006866 deterioration Effects 0.000 abstract description 3
- 239000003651 drinking water Substances 0.000 abstract description 2
- 235000020188 drinking water Nutrition 0.000 abstract description 2
- 230000008929 regeneration Effects 0.000 abstract 2
- 238000011069 regeneration method Methods 0.000 abstract 2
- 206010013911 Dysgeusia Diseases 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009292 forward osmosis Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
- C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a reverse osmosis water production system and a reverse osmosis water production method for keeping water quality.A water inlet pipeline is connected to the water inlet end of an RO membrane component, a booster pump is arranged on the water inlet pipeline, a concentrated water outlet pipeline is connected to the concentrated water outlet end of the RO membrane component, and a pure water outlet pipeline is connected to the pure water outlet end of the RO membrane component; one end of the concentrated water return pipeline is communicated with a concentrated water outlet end of the RO membrane component, the other end of the concentrated water return pipeline is connected with a water inlet of the booster pump, and a combination valve is arranged on the concentrated water return pipeline; one end of the pure water return pipeline is communicated with the pure water outlet end of the RO membrane component, the other end of the pure water return pipeline is connected with the water inlet of the booster pump, and the pure water return pipeline is provided with a first one-way valve. The invention can not cause the phenomenon of water quality deterioration or bad taste, and ensures the health of drinking water. Meanwhile, the regeneration speed is high, the regeneration can be realized without draining, and the requirement on the raw water supply condition is low.
Description
Technical Field
The invention relates to a reverse osmosis water production system, in particular to a reverse osmosis water production system and a method for maintaining water quality.
Background
Present large flux does not have bucket reverse osmosis water purification machine can obtain fresh and alive delicious pure water experience at the in-process of drinking promptly, but after night or the idle machine state of purifier through a period of time, because reverse osmosis membrane soaks in raw water or even dense water, slow forward osmosis phenomenon can appear to lead to the pure water that persists in reverse osmosis membrane's membrane bag, quality of water appears worsening, the popular "first saliva", can cause the bad experience of quality of water and taste.
Disclosure of Invention
The invention aims to solve the technical problem of providing a reverse osmosis water making system and a water quality maintaining method which are reasonable in design, maintain water quality and taste and maintain water quality aiming at the defects of the prior art.
The technical problem to be solved by the invention is realized by the following technical scheme, and the invention relates to a reverse osmosis water making system for keeping water quality, which is characterized in that: the method comprises the following steps:
the RO membrane component is characterized in that a water inlet end of the RO membrane component is connected with a water inlet pipeline, the water inlet pipeline is provided with a booster pump, a concentrated water outlet end of the RO membrane component is connected with a concentrated water outlet pipeline, and a pure water outlet end of the RO membrane component is connected with a pure water outlet pipeline;
one end of the concentrated water return pipeline is communicated with a concentrated water outlet end of the RO membrane component, the other end of the concentrated water return pipeline is connected with a water inlet of the booster pump, and a combination valve is arranged on the concentrated water return pipeline;
and one end of the pure water return pipeline is communicated with the pure water outlet end of the RO membrane component, the other end of the pure water return pipeline is connected with the water inlet of the booster pump, and a first one-way valve is arranged on the pure water return pipeline.
The technical problem to be solved by the invention can be further realized by the following technical scheme that a double-cutting tap for controlling the two pipelines to be simultaneously cut off is arranged at the water inlet end of the water inlet pipeline and the water outlet end of the pure water outlet pipe.
The technical problem to be solved by the invention can be further realized by the following technical scheme that a water quality detection device is arranged at the pure water outlet end of the RO membrane module. The water quality detection device is a TDS probe or a conductivity probe.
The technical problem to be solved by the invention can be further realized by the following technical scheme that a flow limiting valve and a drain valve are arranged on the concentrated water outlet pipeline; and a second one-way valve and a high-pressure switch are arranged on the pure water outlet pipeline.
The technical problem to be solved by the invention can be further realized by the following technical scheme that a pretreatment filter element and pressure control equipment are arranged on a water inlet pipeline.
The technical problem to be solved by the invention can be further realized by the following technical scheme that the pretreatment filter element is a composite filter element or a PP filter element or a PE filter element or an ultrafiltration filter element or an active carbon filter element.
The technical problem to be solved by the present invention can be further solved by the following technical solution, wherein the pressure control device is a low-pressure switch or a pressure sensor.
The technical problem to be solved by the invention can be further realized by the following technical scheme that the RO membrane assembly comprises a first RO membrane filter element and a second RO membrane filter element which are arranged in parallel, concentrated water outlets of the first RO membrane filter element and the second RO membrane filter element are connected in parallel through a pipeline and then connected with a water inlet of a third RO membrane filter element, pure water outlets of the first RO membrane filter element, the second RO membrane filter element and the third RO membrane filter element are communicated with a pure water outlet pipeline, and a concentrated water outlet of the third RO membrane filter element is connected with a concentrated water outlet pipeline.
The invention also provides a water quality maintaining method of the reverse osmosis water making system for maintaining the water quality, which is characterized in that: in a shutdown state, the concentrated water and the pure water in the system flow back to the booster pump through the concentrated water return pipeline and the pure water return pipeline, water is produced again through the RO membrane module, and the booster pump is closed after the TDS value of the pure water outlet of the RO membrane module is reduced to a pure water state.
The technical problem to be solved by the invention can be further realized by the following technical scheme that in a shutdown state, namely a double-cutting tap is closed, a drain valve is in a cut-off state, when a water quality detection device detects that the numerical value is greater than a set high value, a booster pump is started, raw water passing through a water inlet pipeline and pure water passing through a pure water outlet pipeline are cut off due to the fact that the double-cutting tap is closed, at the moment, the booster pump operates, concentrated water and pure water in the system flow back to the front of the booster pump through a concentrated water return pipeline and a pure water return pipeline, water is produced again through an RO membrane assembly, and when the TDS value of a pure water outlet of the RO membrane assembly is reduced to a pure water state, namely, a preset.
The TDS of the water quality is set to be 150ppm normally at a high value and 50ppm normally at a low value. The TDS high value of 150ppm and the TDS low value of 50ppm of the water quality are set based on the conventional water quality, and the water quality of a special area can be adjusted according to specific conditions.
Compared with the prior art, the RO membrane module water purifier has the advantages that the concentrated water return pipeline and the pure water return pipeline are additionally arranged, the pure water value at the pure water outlet of the RO membrane module is detected through the TDS probe in a shutdown state, when the value is larger than the set high value, the booster pump is started, concentrated water and pure water both flow back to the front of the booster pump through the concentrated water return pipeline and the pure water return pipeline, water is regenerated through the RO membrane module, and when the TDS value is reduced to reach the preset low value, the booster pump is closed. Therefore, the pure water quality of the pure water outlet of the RO membrane assembly can be kept, the phenomenon of water quality deterioration or poor taste can not occur, and the drinking water health is ensured. Meanwhile, the water quality updating speed is high, the water can be discharged without water, and the requirement on the raw water supply condition is low.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings so as to facilitate the further understanding of the present invention by those skilled in the art, and do not limit the right thereto.
Example 1, as shown in figure 1, a reverse osmosis water production system for maintaining water quality, comprising:
the RO membrane component 6 is characterized in that a water inlet pipeline 1 is connected to the water inlet end of the RO membrane component 6, a booster pump 5 is arranged on the water inlet pipeline 1, a concentrated water outlet pipeline 13 is connected to the concentrated water outlet end of the RO membrane component 6, and a pure water outlet pipeline 14 is connected to the pure water outlet end of the RO membrane component 6;
one end of the concentrated water return pipeline 8 is communicated with a concentrated water outlet end of the RO membrane component 6, the other end of the concentrated water return pipeline is connected with a water inlet of the booster pump 5, and a combination valve 7 is arranged on the concentrated water return pipeline 8;
one end of the pure water return pipeline 4 is communicated with the pure water outlet end of the RO membrane component 6, the other end of the pure water return pipeline is connected with the water inlet of the booster pump 5, and a first one-way valve 17 is arranged on the pure water return pipeline 4.
In this embodiment, a double-cut tap 15 is provided at the water inlet end of the water inlet pipeline 1 and the water outlet end of the pure water outlet pipeline 14 for controlling the two pipelines to be simultaneously cut off. A water quality detection device 9 is arranged at the pure water outlet end of the RO membrane module 6. The water quality detecting device 9 is a TDS probe or a conductivity probe. The concentrated water outlet pipeline 13 is provided with a flow limiting valve 10 and a drain valve 12; the pure water outlet pipeline 14 is provided with a second one-way valve 11 and a high-pressure switch 16.
In this embodiment, a pretreatment cartridge 2 and a pressure control device 3 are installed on the water inlet line 1. The pretreatment filter element 2 is a composite filter element or a PP filter element or a PE filter element or an ultrafiltration filter element or an active carbon filter element. The pressure control device 3 is a low-pressure switch or a pressure sensor.
The RO membrane assembly 6 comprises a first RO membrane filter element and a second RO membrane filter element which are arranged in parallel, the concentrated water outlets of the first RO membrane filter element and the second RO membrane filter element are connected with the water inlet of a third RO membrane filter element after being connected in parallel through a pipeline, the pure water outlets of the first RO membrane filter element, the second RO membrane filter element and the third RO membrane filter element are communicated with a pure water outlet pipeline 14, and the concentrated water outlet of the third RO membrane filter element is connected with a concentrated water outlet pipeline 13.
In embodiment 2, according to the water quality maintaining method of the reverse osmosis water production system for maintaining water quality in embodiment 1, in a shutdown state, before the concentrated water and the pure water in the system are both returned to the booster pump through the concentrated water return line and the pure water return line, the RO membrane module is used to produce water again, and when the TDS value of the pure water outlet of the RO membrane module is reduced to a pure water state, the booster pump is turned off.
Claims (4)
1. A reverse osmosis water production system for maintaining water quality, comprising:
the RO membrane component is characterized in that a water inlet end of the RO membrane component is connected with a water inlet pipeline, the water inlet pipeline is provided with a booster pump, a concentrated water outlet end of the RO membrane component is connected with a concentrated water outlet pipeline, and a pure water outlet end of the RO membrane component is connected with a pure water outlet pipeline;
one end of the concentrated water return pipeline is communicated with a concentrated water outlet end of the RO membrane component, the other end of the concentrated water return pipeline is connected with a water inlet of the booster pump, and a combination valve is arranged on the concentrated water return pipeline;
one end of the pure water return pipeline is communicated with the pure water outlet end of the RO membrane component, the other end of the pure water return pipeline is connected with the water inlet of the booster pump, and a first one-way valve is arranged on the pure water return pipeline;
a double-cutting tap for controlling the two pipelines to be simultaneously cut off is arranged at the water inlet end of the water inlet pipeline and the water outlet end of the pure water outlet pipe;
a water quality detection device is arranged at the pure water outlet end of the RO membrane module; a flow limiting valve and a drain valve are arranged on the concentrated water outlet pipeline; a second one-way valve and a high-pressure switch are arranged on the pure water outlet pipeline; a pretreatment filter element and pressure control equipment are arranged on the water inlet pipeline;
in a shutdown state, returning concentrated water and pure water in the system to the front of the booster pump through a concentrated water return pipeline and a pure water return pipeline, producing water again through the RO membrane module, and closing the booster pump when the TDS value of the pure water outlet of the RO membrane module is reduced to a pure water state;
under the shutdown state, the double-cutting tap closes promptly, the drain valve is in the off-state, water quality testing device detects when numerical value is greater than and sets for the high value, start the booster pump, because the double-cutting tap closes, raw water through the inlet channel and the pure water through pure water outlet pipe all are cut off, the booster pump operation this moment, then dense water and pure water in the system all flow back to before the booster pump through dense water return line and pure water return line, make water again through the RO membrane module, TDS value when RO membrane module pure water delivery port descends to the pure water state, reach the preset low value promptly, the booster pump is closed to the back.
2. A reverse osmosis water production system for maintaining water quality according to claim 1 wherein: the pretreatment filter element is a composite filter element or a PP filter element or a PE filter element or an ultrafiltration filter element or an active carbon filter element.
3. A reverse osmosis water production system for maintaining water quality according to claim 1 wherein: the pressure control device is a low-pressure switch or a pressure sensor.
4. A reverse osmosis water production system for maintaining water quality according to claim 1 wherein: the RO membrane assembly comprises a first RO membrane filter element and a second RO membrane filter element which are arranged in parallel, the concentrated water outlets of the first RO membrane filter element and the second RO membrane filter element are connected with the water inlet of a third RO membrane filter element after being connected in parallel through a pipeline, the pure water outlets of the first RO membrane filter element, the second RO membrane filter element and the third RO membrane filter element are communicated with a pure water outlet pipeline, and the concentrated water outlet of the third RO membrane filter element is connected with a concentrated water outlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232061.6A CN106745898B (en) | 2016-12-28 | 2016-12-28 | Reverse osmosis water production system and method for maintaining water quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232061.6A CN106745898B (en) | 2016-12-28 | 2016-12-28 | Reverse osmosis water production system and method for maintaining water quality |
Publications (2)
| Publication Number | Publication Date |
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| CN106745898A CN106745898A (en) | 2017-05-31 |
| CN106745898B true CN106745898B (en) | 2020-08-04 |
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| CN201611232061.6A Expired - Fee Related CN106745898B (en) | 2016-12-28 | 2016-12-28 | Reverse osmosis water production system and method for maintaining water quality |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205897B (en) * | 2017-06-30 | 2024-06-25 | 佛山市顺德区美的饮水机制造有限公司 | Water purifying equipment |
| CN109277000A (en) * | 2017-07-20 | 2019-01-29 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier control method, system and water purifier |
| CN109276999A (en) * | 2017-07-20 | 2019-01-29 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier control method and system |
| CN107739070A (en) * | 2017-11-15 | 2018-02-27 | 珠海格力电器股份有限公司 | Water purification system and control method thereof |
| CN108046353A (en) * | 2017-12-27 | 2018-05-18 | 珠海格力电器股份有限公司 | Water purifying device and control method thereof |
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2016
- 2016-12-28 CN CN201611232061.6A patent/CN106745898B/en not_active Expired - Fee Related
Patent Citations (9)
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| CN203754539U (en) * | 2013-12-20 | 2014-08-06 | 长春联创水质工程有限公司 | Civilian terminal high-quality drinking water treatment system complete equipment |
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