CN105797587B - Water purification system and automatic working pressure adjusting method thereof - Google Patents
Water purification system and automatic working pressure adjusting method thereof Download PDFInfo
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- CN105797587B CN105797587B CN201610301736.1A CN201610301736A CN105797587B CN 105797587 B CN105797587 B CN 105797587B CN 201610301736 A CN201610301736 A CN 201610301736A CN 105797587 B CN105797587 B CN 105797587B
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- 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
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- 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
- B01D61/12—Controlling or regulating
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- 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
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- 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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a water purification system and a pressure automatic adjusting method thereof, comprising a filtering part, a pure water part, a concentrated water part, a reverse osmosis filter element and an electric control device, wherein the filtering part is output in two ways through the reverse osmosis filter element, one way is output to the pure water part, and the other way is output to the concentrated water part, wherein the filtering part is provided with a water inlet pressure sensor, a pressure adjusting device and a water pressure sensor in front of a membrane, the electric control device is respectively and electrically connected with the water inlet pressure sensor, the pressure adjusting device and the water pressure sensor in front of the membrane, the electric control device detects the water inlet pressure condition of the filtering part according to the water inlet pressure sensor, adjusts the water pressure going into the reverse osmosis filter element by controlling the pressure adjusting device, and detects whether the water pressure going into the reverse osmosis filter element meets a set value or not by the water pressure, the balance of the water outlet quantity is ensured, the working reliability of the reverse osmosis filter can be improved, the service life is prolonged, and the working condition of the pressure regulating device is intelligently regulated, so that the water pressure to enter the reverse osmosis filter element obtains the optimal working pressure.
Description
Technical Field
The invention relates to the technical field of water purification systems, in particular to a water purification system and an automatic working pressure adjusting method thereof.
Background
In recent years, water purification products have been receiving more and more attention from consumers as health products, and the water purification industry has been rapidly developed. The reverse osmosis water purification system is the mainstream of domestic household water purification systems, and a certain osmotic pressure is required when the reverse osmosis filter element works, so that the water solution permeates from high concentration to low concentration. Therefore, the general reverse osmosis water purification system has the great characteristic that the booster pump is used for front-end boosting.
As shown in fig. 1, the technical solution of the existing water purification system includes a filtration part, a pure water part, a concentrated water part, a reverse osmosis filter element and an electric control device, wherein the filtration part outputs two paths through the reverse osmosis filter element, one path outputs to the pure water part, the other path outputs to the concentrated water part, the filtration part is provided with a pre-treatment filter element 101, a water inlet electromagnetic valve 102 and a booster pump 103, the pure water part is provided with a post-treatment filter element 105, and the concentrated water part is provided with a concentrated water proportioner 106; when the water purifier works, water is filtered by the front filter element and then is pressurized by the booster pump to reach the reverse osmosis filter element, purified water of the reverse osmosis filter element reaches the water outlet after being treated by the rear source treatment filter element, and concentrated water of the reverse osmosis filter element reaches the concentrated water outlet through the concentrated water proportioner. When water is produced, the water inlet electromagnetic valve is opened, and the booster pump works under the rated working condition, so that the osmotic pressure of the reverse osmosis filter element is improved.
Above-mentioned prior art scheme's water purification system still has following weak point: the booster pump works under a rated working condition, and the booster pump does not change the working condition of the booster pump regardless of the water inlet pressure, so that the water outlet flow of the water purification system is reduced when the water inlet pressure is low; when the water inlet pressure is high, the water outlet flow of the water purification system is increased; if the water source lacks water, the booster pump can enter the dry pumping, influences life, if the water source water pressure is too high, can cause the harm to whole machine.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a water purification system which can ensure the balance of the water outlet quantity, improve the working reliability and prolong the service life.
The invention also aims to provide an automatic pressure regulating method of the water purifying system, which can intelligently regulate the working conditions of the pressure regulating device by detecting the water pressure of a water source so as to obtain the optimal working pressure of the water pressure entering the reverse osmosis filter element.
The purpose of the invention is realized as follows:
a water purification system comprises a filtering part, a pure water part, a concentrated water part, a reverse osmosis filter element and an electric control device, wherein the filtering part is divided into two paths of output through the reverse osmosis filter element, one path of output is output to the pure water part, the other path of output is output to the concentrated water part, the water purification system is characterized in that the filtering part is provided with a water inlet pressure sensor, a pressure regulating device and a water pressure sensor before a membrane, the electric control device is respectively electrically connected with the water inlet pressure sensor, the pressure regulating device and the water pressure sensor before the membrane, the electric control device detects the water inlet pressure condition of the filtering part according to the water inlet pressure sensor, the water pressure which is about to enter the reverse osmosis filter element is regulated through controlling the pressure regulating device, and the water pressure which is about to enter the reverse osmosis filter element is detected by the water pressure sensor before, but also can improve the working reliability and prolong the service life.
The technical scheme of the invention comprises the following further technical measures:
furthermore, the filtering part is provided with a water inlet pressure sensor, a pressure regulating device and a water pressure sensor in front of the membrane in sequence according to the water inlet direction; the water inlet pressure sensor and the water pressure sensor in front of the membrane respectively detect the water inlet pressure and the water pressure about to enter the reverse osmosis filter element, and the pressure regulating device is used as a mechanism for regulating the water pressure.
Furthermore, the pressure regulating device comprises a booster pump and a rotating speed regulating device thereof, the booster pump is arranged between the water inlet water pressure sensor and the membrane front water pressure sensor, and the rotating speed regulating device is respectively and electrically connected with the booster pump and the electric control device; that is, the rotation speed adjusting device changes the pressure value output by the booster pump through the control of the electric control device.
Furthermore, a pre-pretreatment filter element is arranged between the water inlet and the water inlet pressure sensor of the filtering part so as to pre-filter the water inlet source.
Furthermore, the concentrated water part is also provided with a concentrated water flow adjusting device, the concentrated water flow adjusting device is electrically connected with the electric control device, and the electric control device controls the concentrated water flow adjusting device.
The other objective technical scheme of the invention is as follows:
a method for automatically adjusting the working pressure of a water purification system is characterized by comprising the following steps:
step one, presetting an optimal working water pressure value P entering a reverse osmosis filter element;
step two, the water inlet pressure sensor 102 detects the water inlet pressure value Pi of the filtering part and transmits the water inlet pressure value Pi to the electric control device;
after the water production is started, the electric control device controls the pressure regulating device to regulate the water pressure value Po about to enter the reverse osmosis filter element;
step four, when the Po value is equal to the P value, the pressure regulating device keeps working at a constant speed;
step five, when the Pi value is greater than or equal to the P value, the pressure regulating device stops working;
step six, in the water making process, the water pressure values Pi and Po are detected in real time by the water inlet pressure sensor 102 and the water pressure sensor 103 in front of the membrane, and the pressure regulating device is controlled by the electric control device, so that the water pressure value output by the pressure regulating device is kept at the optimal working water pressure value.
As a further technical solution of the above working pressure automatic adjusting method:
and step three, after the water production is started, the electric control device controls the rotating speed adjusting device in the pressure adjusting device to gradually increase the rotating speed of the booster pump, and meanwhile, the water pressure sensor in front of the membrane detects the water pressure value Po about to enter the reverse osmosis filter element.
Further, in the fourth step, when the Po value is equal to the P value, the rotating speed regulating device of the pressure regulating device keeps the constant rotating speed of the booster pump to work;
further, in the fifth step, when the Pi value is greater than or equal to the P value, the rotation speed adjusting device of the pressure adjusting device stops the operation of the booster pump.
The invention has the following beneficial effects:
(1) the water purification system can ensure the balance of water outlet quantity, improve the working reliability and prolong the service life.
(2) The automatic pressure regulating method for the water purifying system intelligently regulates the working conditions of the pressure regulating device by detecting the water pressure of a water source, so that the water pressure to enter the reverse osmosis filter element obtains the optimal working pressure.
Drawings
Fig. 1 is a schematic diagram of a prior art water purification system.
Fig. 2 is a schematic diagram of a water purification system of the present invention.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
as shown in figure 2, the water purification system comprises a filtering part 1, a pure water part 2, a concentrated water part 3, a reverse osmosis filter element 4 and an electric control device 5, the filtering part 1 is output in two paths through a reverse osmosis filter element 4, one path is output to a pure water part 2, the other path is output to a concentrated water part 3, it is characterized in that the filtering part 1 is provided with a water inlet pressure sensor 6, a pressure regulating device 7 and a water pressure sensor 8 in front of the membrane, an electric control device 5 is respectively and electrically connected with the water inlet pressure sensor 6, the pressure regulating device 7 and the water pressure sensor 8 in front of the membrane, the electric control device 5 detects the water inlet pressure condition of the filtering part 1 according to the water inlet pressure sensor 6, the water pressure about to enter the reverse osmosis filter element 4 is adjusted by controlling the pressure regulating device 7, and the water pressure sensor 8 in front of the membrane detects whether the water pressure about to enter the reverse osmosis filter element 4 meets a set value or not, so that the electric control device 5 controls the pressure regulating device 7 to work.
Wherein, the filtering part 1 is provided with a water inlet pressure sensor 6, a pressure regulating device 7 and a water pressure sensor 8 in front of the membrane in sequence according to the water inlet direction.
Further, the pressure regulating device 7 comprises a booster pump 71 and a rotating speed regulating device 72 thereof, the booster pump 71 is arranged between the water inlet water pressure sensor 6 and the membrane front water pressure sensor 8, and the rotating speed regulating device 72 is electrically connected with the booster pump 71 and the electric control device 5 respectively.
A pre-treatment filter element 10 is arranged between the water inlet 9 and the water inlet pressure sensor 6 of the filtering part 1, and a post-treatment filter element 12 is arranged on the pure water part 2; the concentrated water part 3 is also provided with a concentrated water flow adjusting device 11, and the concentrated water flow adjusting device 11 is electrically connected with the electric control device 5.
The water purification system can ensure the balance of water outlet quantity, improve the working reliability and prolong the service life.
A method for automatically adjusting the working pressure of a water purification system is characterized by comprising the following steps:
step one, presetting an optimal working water pressure value P entering the reverse osmosis filter element 4.
And step two, the water inlet pressure sensor 6 detects the water inlet pressure value Pi of the filtering part 1 and transmits the water inlet pressure value Pi to the electric control device 5.
And step three, after the water production is started, the electric control device 5 controls the pressure regulating device 7 to regulate the water pressure value Po about to enter the reverse osmosis filter element 4.
And step four, when the Po value is equal to the P value, the pressure regulating device 7 keeps working at a constant speed.
And step five, when the Pi value is greater than or equal to the P value, the pressure regulating device 7 stops working.
Step six, in the water making process, the water inlet pressure sensor 6 and the water pressure sensor 8 in front of the membrane detect the water pressure values Pi and Po in real time, the electric control device 5 controls the pressure regulating device 7, and the water pressure value output by the pressure regulating device 7 is guaranteed to be kept at the optimal working water pressure value.
As a more specific scheme, in the third step, after the water production is started, the electronic control device 5 controls the rotation speed adjusting device 72 in the pressure adjusting device 7 to gradually increase the rotation speed of the booster pump 71, and at the same time, the water pressure sensor 8 before the membrane detects the water pressure value Po about to enter the reverse osmosis filter element 4.
In the fourth step, when the Po value is equal to the P value, the rotation speed adjusting device 72 of the pressure adjusting device 7 keeps the constant rotation speed operation of the booster pump 71.
In the fifth step, when the Pi value is greater than or equal to the P value, the rotation speed adjusting device 72 of the pressure adjusting device 7 stops the operation of the booster pump 71.
The automatic pressure regulating method for the water purifying system intelligently regulates the working conditions of the pressure regulating device by detecting the water pressure of a water source, so that the water pressure to enter the reverse osmosis filter element obtains the optimal working pressure.
Claims (2)
1. A water purification system comprises a filtering part (1), a pure water part (2), a concentrated water part (3), a reverse osmosis filter element (4) and an electric control device (5), wherein the filtering part (1) is divided into two paths of output through the reverse osmosis filter element (4), the output is divided into the pure water part (2) and the output is divided into the concentrated water part (3) on the other path, the water purification system is characterized in that the filtering part (1) is provided with a water inlet water pressure sensor (6), a pressure regulating device (7) and a membrane front water pressure sensor (8), the electric control device (5) is respectively electrically connected with the water inlet water pressure sensor (6), the pressure regulating device (7) and the membrane front water pressure sensor (8), the electric control device (5) detects the water inlet water pressure condition of the filtering part (1) according to the water inlet water pressure sensor (6), and adjusts the water pressure which is about to enter the reverse osmosis, a water pressure sensor (8) in front of the membrane is used for detecting whether the water pressure which is about to enter the reverse osmosis filter element (4) meets a set value or not so as to control the pressure regulating device (7) to work by the electric control device (5); the filtering part (1) is provided with a water inlet pressure sensor (6), a pressure regulating device (7) and a water pressure sensor (8) in front of the membrane in sequence according to the water inlet direction; the pressure regulating device (7) comprises a booster pump (71) and a rotating speed regulating device (72) thereof, the booster pump (71) is arranged between the water inlet water pressure sensor (6) and the membrane front water pressure sensor (8), and the rotating speed regulating device (72) is respectively electrically connected with the booster pump (71) and the electric control device (5); a pre-pretreatment filter element (10) is arranged between the water inlet (9) and the water inlet pressure sensor (6) of the filtering part (1); the concentrated water part (3) is also provided with a concentrated water flow adjusting device (11), and the concentrated water flow adjusting device (11) is electrically connected with the electric control device (5).
2. The automatic working pressure regulating method of the water purifying system as claimed in claim 1, which comprises the following steps:
step one, presetting an optimal working water pressure value P entering a reverse osmosis filter element (4);
step two, the water inlet pressure sensor (6) detects the water inlet pressure value Pi of the filtering part (1) and transmits the water inlet pressure value Pi to the electric control device (5);
after the water production is started, the electric control device (5) controls the pressure regulating device (7) to regulate the water pressure value Po about to enter the reverse osmosis filter element (4);
step four, when the Po value is equal to the P value, the pressure regulating device (7) keeps working at a constant speed;
step five, when the Pi value is greater than or equal to the P value, the pressure regulating device (7) stops working;
step six, in the water making process, the water inlet pressure sensor (6) and the water pressure sensor (8) in front of the membrane detect the water pressure values Pi and Po in real time, the electric control device (5) controls the pressure regulating device (7) to ensure that the water pressure value output by the pressure regulating device (7) is kept at the optimal working water pressure value;
after the water production is started, the electric control device (5) controls the rotating speed adjusting device (72) in the pressure adjusting device (7) to enable the rotating speed of the booster pump (71) to be gradually increased, and meanwhile, the water pressure sensor (8) in front of the membrane detects the water pressure value Po about to enter the reverse osmosis filter element (4);
fourthly, when the Po value is equal to the P value, the rotating speed adjusting device (72) of the pressure adjusting device (7) keeps the constant rotating speed of the booster pump (71) to work;
and step five, when the Pi value is larger than or equal to the P value, the rotating speed adjusting device (72) of the pressure adjusting device (7) stops the work of the booster pump (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610301736.1A CN105797587B (en) | 2016-05-09 | 2016-05-09 | Water purification system and automatic working pressure adjusting method thereof |
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| CN201610301736.1A CN105797587B (en) | 2016-05-09 | 2016-05-09 | Water purification system and automatic working pressure adjusting method thereof |
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| CN105797587A CN105797587A (en) | 2016-07-27 |
| CN105797587B true CN105797587B (en) | 2020-05-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114225510B (en) * | 2021-12-23 | 2023-02-24 | 南通力联自动化科技有限公司 | Double-channel intelligent filtering system and method |
| CN116143238A (en) * | 2023-01-07 | 2023-05-23 | 珠海格力电器股份有限公司 | Constant-current water purification control method and device, storage medium and water purifier |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032679A (en) * | 2006-03-09 | 2007-09-12 | 佳尼特(上海)纯水设备有限公司 | Reverse osmosis type water conditioner able to improve pressure automatically |
| CN204841420U (en) * | 2015-08-03 | 2015-12-09 | 周建云 | Reverse osmosis water quality processing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102177543B1 (en) * | 2014-05-09 | 2020-11-11 | (주)미래에스티 | Apparatus for producing ultra-pure water production |
| CN204151112U (en) * | 2014-09-03 | 2015-02-11 | 佛山市美的清湖净水设备有限公司 | Purifier and reverse osmosis water purifier |
| CN104229938B (en) * | 2014-09-03 | 2017-02-15 | 佛山市美的清湖净水设备有限公司 | Purifier and reverse osmosis water purifier |
| CN104355426B (en) * | 2014-10-29 | 2016-06-08 | 珠海格力电器股份有限公司 | Water cleaning systems and control method thereof |
| CN205570109U (en) * | 2016-05-09 | 2016-09-14 | 佛山市云米电器科技有限公司 | Water purification system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032679A (en) * | 2006-03-09 | 2007-09-12 | 佳尼特(上海)纯水设备有限公司 | Reverse osmosis type water conditioner able to improve pressure automatically |
| CN204841420U (en) * | 2015-08-03 | 2015-12-09 | 周建云 | Reverse osmosis water quality processing device |
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