CN213294798U - Reverse osmosis water purification system and water purification unit - Google Patents

Reverse osmosis water purification system and water purification unit Download PDF

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Publication number
CN213294798U
CN213294798U CN202021812994.4U CN202021812994U CN213294798U CN 213294798 U CN213294798 U CN 213294798U CN 202021812994 U CN202021812994 U CN 202021812994U CN 213294798 U CN213294798 U CN 213294798U
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water
reverse osmosis
pipeline
filter element
water inlet
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CN202021812994.4U
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陈小平
吕苏
晏博
黄剑波
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Yunmi Internet Technology Guangdong Co Ltd
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Yunmi Internet Technology Guangdong Co Ltd
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Abstract

The utility model discloses a reverse osmosis water purification system and water purification unit. The water purification system comprises a water inlet pipeline, a booster pump, a first reverse osmosis filter element, a second reverse osmosis filter element, a wastewater pipeline, a water outlet pipeline, a circulating pipeline, a first valve, a second valve and a third valve. The booster pump is arranged on the water inlet pipeline; the water inlet side of the first reverse osmosis filter element is communicated with a water inlet pipeline; the water inlet side of the second reverse osmosis filter element is communicated with the water inlet side of the first reverse osmosis filter element; the waste water pipeline is communicated with the water inlet side of the second reverse osmosis filter element; and the water outlet pipeline is communicated with the water outlet side of the second reverse osmosis filter element. After water purification unit restarts, the user of the play water when just beginning to make water can directly drink, even though do not influence the quoting after shutting down for a long time, improve user's water experience.

Description

Reverse osmosis water purification system and water purification unit
Technical Field
The utility model relates to a water treatment technical field especially relates to a reverse osmosis water purification system and water purification unit.
Background
Reverse Osmosis (RO) is a water treatment technology commonly used at present, and is commonly used in water purification equipment such as various water purifiers, and the principle of the technology is that raw water with pressure passes through the RO, water molecules can pass through the RO under pressure driving, and inorganic salt ions, bacteria, viruses, organic matters, colloid and the like are intercepted by the RO, so that the purification of the raw water is realized, and pure drinking water is obtained.
When the reverse osmosis water purification equipment is not used for a long time, part of inorganic salt ions and small molecular weight substances on one side of raw water of the reverse osmosis membrane gradually pass through the reverse osmosis membrane, so that the Total Dissolved Solids (TDS) concentration on one side of purified water is gradually increased and is even finally the same as the Total Dissolved Solids (TDS) concentration of the raw water. This just leads to reverse osmosis water purification unit to be reusing, and the play water TDS concentration when just beginning to make water is high, and quality of water is poor, has influenced user's experience with water.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reverse osmosis water purification system and water purification unit, water purification system when reuse, the play water TDS concentration when just starting to make water is low, and quality of water is good, improves user's water experience.
The utility model discloses a reverse osmosis water purification system, water purification system includes water intake pipe, booster pump, first reverse osmosis filter core, second reverse osmosis filter core, waste water pipeline, outlet pipeline, circulating line, first valve, second valve and third valve. The booster pump is arranged on the water inlet pipeline; the water inlet side of the first reverse osmosis filter element is communicated with a water inlet pipeline; the water inlet side of the second reverse osmosis filter element is communicated with the water inlet side of the first reverse osmosis filter element; the waste water pipeline is communicated with the water inlet side of the second reverse osmosis filter element; the water outlet pipeline is communicated with the water outlet side of the second reverse osmosis filter element; one end of the circulating pipeline is communicated with the water inlet pipeline, and the other end of the circulating pipeline is communicated with the water outlet pipeline; the first valve is arranged on the circulating pipeline; the second valve is arranged on the water outlet pipeline and is positioned behind the communication part of the circulating pipeline and the water outlet pipeline; the third valve is arranged on the waste water pipeline. Wherein, the water outlet side of the first reverse osmosis filter element is communicated with the circulating pipeline, and the communication position is positioned behind the first valve.
Optionally, the water purification system comprises a first flow meter and a second flow meter; the first flowmeter is arranged on the water inlet pipeline and is positioned in front of a communication position of the circulating pipeline and the water inlet pipeline; the second flowmeter is arranged on the water outlet pipeline.
Optionally, the water purification system comprises a third flow meter; the third flow meter is arranged on a pipeline which is communicated with the circulating pipeline at the water outlet side of the first reverse osmosis filter element.
Optionally, the water purification system comprises a fourth flow meter, the fourth flow meter being arranged on the waste water pipeline.
Optionally, the water purification system comprises a second flow meter and a fourth flow meter; the second flowmeter is arranged on the water outlet pipeline; the fourth flow meter is disposed on the waste water line.
Optionally, the water purification system comprises a first TDS meter; the first TDS meter is arranged on the water inlet pipeline and is positioned behind the communication position of the circulating pipeline and the water inlet pipeline.
Optionally, the water purification system comprises a second TDS meter; the second TDS meter is arranged on a pipeline communicated with the water inlet side of the first reverse osmosis filter element and on the water inlet side of the second reverse osmosis filter element.
Optionally, the water purification system comprises a water inlet valve, and the water inlet valve is arranged on the water inlet pipeline.
Optionally, the water inlet valve is arranged on one side of the communication position of the circulation pipeline and the water inlet pipeline, which is far away from the first reverse osmosis filter element.
The utility model also discloses a water purification unit, include as above reverse osmosis water purification system.
In the reverse osmosis water purification system, when water is normally produced, the first valve is closed, the second valve and the third valve are opened, and the water purification equipment normally produces water; when the water purifying equipment stops producing water for a long time, the second valve is closed, the first valve and the third valve are opened, the booster pump still works, purified water on the water outlet side of the first reverse osmosis filter element and the second reverse osmosis filter element continuously circulates back to the water inlet pipeline through the circulating pipeline, is mixed with raw water and enters the water inlet side of the first reverse osmosis filter element and the second reverse osmosis filter element, water staying on the side is diluted, and produced wastewater is discharged from a wastewater pipeline. And after the circulation is carried out for a preset time, the booster pump is closed. The TDS concentration of the water of the side of intaking and the play water side of first reverse osmosis filter core, second reverse osmosis filter core this moment is all less, and quality of water is better, and water purification unit restarts the back, and the user of just beginning when making water can directly drink, does not influence the quoting even though shut down for a long time after, improves user's experience with water.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty. In the drawings:
FIG. 1 is a schematic diagram of a reverse osmosis water purification system according to an embodiment of the present invention;
FIG. 2 is another schematic diagram of a reverse osmosis water purification system according to an embodiment of the present invention;
FIG. 3 is another schematic diagram of a reverse osmosis water purification system according to an embodiment of the present invention;
FIG. 4 is another schematic diagram of a reverse osmosis water purification system according to an embodiment of the present invention;
FIG. 5 is a flow chart of a control method of a reverse osmosis water purification system according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a reverse osmosis water purification device according to an embodiment of the present invention.
Wherein, 1, reverse osmosis water purification equipment; 2. a water purification system; 3. a water inlet pipeline;
4. a booster pump; 5. a first reverse osmosis filter element; 51. a water inlet side; 52. a reverse osmosis membrane; 53. a water outlet side; 6. a second reverse osmosis filter element; 7. a waste water line; 8. a water outlet pipeline; 9. a circulation line; 10. a first valve; 11. a second valve; 12. a third valve; 13. a first flow meter; 14. a second flow meter; 15. a third flow meter; 16. a fourth flow meter; 17. a first TDS meter; 18. a second TDS meter; 19. a one-way valve; 20. a water inlet valve.
Detailed Description
In the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
The invention will be described in detail below with reference to the drawings and alternative embodiments.
As shown in fig. 1, as an embodiment of the present invention, a reverse osmosis water purification system is disclosed, the water purification system 2 includes a water inlet pipeline 3, a booster pump 4, a first reverse osmosis filter element 5, a second reverse osmosis filter element 6, a wastewater pipeline 7, a water outlet pipeline 8, a circulation pipeline 9, a first valve 10, a second valve 11 and a third valve 12. The booster pump 4 is arranged on the water inlet pipeline 3; the water inlet side 51 of the first reverse osmosis filter element 5 is communicated with the water inlet pipeline 3; the water inlet side 51 of the second reverse osmosis filter element 6 is communicated with the water inlet side 51 of the first reverse osmosis filter element 5; the waste water line 7 is in communication with the water inlet side 51 of the second reverse osmosis cartridge 6; the water outlet line 8 is in communication with the water outlet side 53 of the second reverse osmosis cartridge 6; one end of the circulating pipeline 9 is communicated with the water inlet pipeline 3, and the other end of the circulating pipeline is communicated with the water outlet pipeline 8; the first valve 10 is arranged on the circulation line 9; the second valve 11 is arranged in the water outlet pipeline 8 and is positioned behind the communication part of the circulating pipeline 9 and the water outlet pipeline 8; the third valve 12 is arranged in the waste water line 7. Wherein the water outlet side 53 of the first reverse osmosis cartridge 5 is in communication with the circulation line 9, after the first valve 10.
The water inlet side 51 of the first reverse osmosis filter element 5 and the second reverse osmosis filter element 6 in the utility model refers to the side of water which is not filtered by the reverse osmosis membrane 52 in the first reverse osmosis filter element 5 and the second reverse osmosis filter element 6, and the side is the raw water or the waste water; the outlet side 53 refers to the side of the water in the first and second reverse osmosis filter elements 5, 6 which has been filtered by the reverse osmosis membrane 52, where the water is purified for drinking by the user. The raw water in the utility model refers to water before being filtered by the reverse osmosis membrane 52, and can be tap water and the like which are generally connected into a municipal pipeline; the purified water refers to water filtered by the reverse osmosis membrane 52 and is drunk by a user; the waste water is the residual water after the raw water is continuously filtered by the reverse osmosis membrane 52, and the TDS concentration of the partial water is generally higher than that of the raw water, and the partial water can be discharged through the waste water pipeline 7.
When the reverse osmosis water purifying device 1 is not used for a long time, the water at the water inlet side 51 is rich in inorganic salt ions and small molecular weight substances, and the concentration of the water is high, and the water gradually passes through the reverse osmosis membrane 52, so that the TDS concentration at the water outlet side 53 is gradually increased. This just leads to reverse osmosis water purification unit 1 to be reusing, and the play water TDS concentration when just beginning to make water is high, and quality of water is poor, has influenced user's experience with water.
In the reverse osmosis water purification system 2 of the utility model, when water is normally produced, the first valve 10 is closed, the second valve 11 and the third valve 12 are opened, and the water purification equipment normally produces water; when the water purifying equipment stops producing water for a long time, the second valve 11 is closed, the first valve 10 and the third valve 12 are opened, the booster pump 4 still works, purified water on the water outlet side 53 of the first reverse osmosis filter element 5 and the second reverse osmosis filter element 6 continuously circulates back to the water inlet pipeline 3 through the circulating pipeline 9, is mixed with raw water and enters the water inlet side 51 of the first reverse osmosis filter element 5 and the second reverse osmosis filter element 6 to dilute water staying on the side, and produced wastewater is discharged from a wastewater pipeline. After a preset time of circulation, the booster pump 4 is turned off. The TDS concentration of the water inlet side 51 and the water outlet side 53 of the first reverse osmosis filter element 5 and the second reverse osmosis filter element 6 is small, water quality is good, water outlet users can directly drink water when water making is started after the water purifying equipment is restarted, and the water using experience of the users is improved because the users do not influence the drinking after the water purifying equipment is stopped for a long time.
Specifically, the booster pump 4 is arranged between the communication position of the circulating pipeline 9 and the water inlet pipeline 3 and the first reverse osmosis filter element 5.
Specifically, the reverse osmosis water purification system 2 further comprises a one-way valve 19, and the one-way valve 19 is arranged on the circulation pipeline 9. Preferably, the check valve 19 is disposed at a side of the first valve 10 near a communication between the circulation line 9 and the water inlet line 3.
Specifically, the reverse osmosis water purification system 2 further comprises a water inlet valve 20, and the water inlet valve 20 is arranged on the water inlet pipeline 3. Preferably, the water inlet valve 20 is arranged at the side of the communication part of the circulation pipeline 9 and the water inlet pipeline 3, which is far away from the first reverse osmosis filter element 5.
Specifically, the first valve 10 and the third valve 12 may be solenoid valves, or other valves.
As shown in fig. 2, the water purification system further includes a first flow meter 13 and a second flow meter 14; the first flow meter 13 is arranged on the water inlet pipeline 3 and is positioned in front of the communication position of the circulating pipeline 9 and the water inlet pipeline 3; the second flow meter 14 is arranged on the water outlet line 8. In this embodiment, the first flow meter 13 may record the raw water amount, and the second flow meter 14 may record the purified water amount, so as to obtain the wastewater amount, the purified water and the wastewater ratio, monitor the specific water production condition of the reverse osmosis water purification system 2, and take different actions according to the water production condition, for example, determine whether to clean or replace the reverse osmosis filter element according to the wastewater amount, the purified water and the wastewater ratio.
Further, as shown in fig. 2, the water purification system further includes a third flow meter 15; the third flow meter 15 is arranged on a pipeline which is communicated with the circulating pipeline 9 at the water outlet side 53 of the first reverse osmosis filter element 5. In this embodiment, the third flow meter 15 may record the water flow from the water outlet side 53 of the first reverse osmosis filter element 5 to the circulation line 9, and determine whether the circulation of the circulation line 9 is completed according to the water flow, for example, after the water flow recorded by the third flow meter 15 reaches a preset flow value, the booster pump 4 is turned off, and the circulation is stopped.
Further, as shown in fig. 3, the water purification system further includes a fourth flow meter 16, and the fourth flow meter 16 is disposed on the waste water pipe 7. In the scheme, the fourth flow meter 16 records the amount of wastewater discharged from the wastewater pipeline 7 so as to monitor the specific water production condition of the reverse osmosis water purification system 2, and different actions are taken according to the water production condition, for example, the amount of purified water is recorded according to the second flow meter 14 and the amount of wastewater is recorded by the fourth flow meter 16, so that the proportion of the purified water amount and the amount of wastewater is directly obtained; when the ratio of the purified water amount to the wastewater amount exceeds a preset threshold value, giving an alarm or adjusting the opening frequency of the third valve 12 according to the ratio of the purified water amount to the wastewater amount; for example, after the water purifying apparatus is stopped, the flow rate recorded by the fourth flow meter 16 does not change any more, and the circulation is started after a lapse of time, and the circulation time or the like may be determined by the flow rate recorded by the fourth flow meter 16.
In another implementation, the water purification system includes a second flow meter 14 and a fourth flow meter 16; the second flow meter 14 is arranged on the water outlet pipeline 8; the fourth flowmeter 16 is disposed on the waste water line 7. In the scheme, the fourth flow meter 16 records the amount of wastewater discharged from the wastewater pipeline 7, the second flow meter 14 records the amount of purified water so as to monitor the specific water production condition of the reverse osmosis water purification system 2, and different actions are taken according to the water production condition, for example, the amount of purified water is recorded according to the second flow meter 14 and the amount of wastewater is recorded by the fourth flow meter 16, so that the proportion of the amount of purified water and the amount of wastewater is directly obtained; when the ratio of the amount of purified water to the amount of waste water exceeds a preset threshold, an alarm is given or the opening frequency of the third valve 12 is adjusted according to the ratio of the amount of purified water to the amount of waste water.
On the other hand, as shown in fig. 4, the water purification system further includes a first TDS meter 17; the first TDS meter 17 is disposed on the water inlet pipeline 3 and is located behind the communication position of the circulating pipeline 9 and the water inlet pipeline 3. In this scheme, first TDS meter 17 can detect the TDS concentration after circulating line 9 and the 3 intercommunication departments of inlet channel to obtain specific system water condition, take different actions according to the system water condition, for example at the in-process of circulation, when the TDS concentration that first TDS meter 17 detected reached a preset threshold value, closed booster pump 4 and stop the circulation.
Further, the water purification system further comprises a second TDS meter 18; the second TDS meter 18 is arranged on a pipeline communicating the water inlet side 51 of the second reverse osmosis filter element 6 with the water inlet side 51 of the first reverse osmosis filter element 5. In the scheme, the first TDS meter 17 can detect the TDS concentration of a pipeline communicating the water inlet side 51 of the second reverse osmosis filter element 6 with the water inlet side 51 of the first reverse osmosis filter element 5 to obtain a specific water production condition, and take different actions according to the water production condition, for example, in the circulating process, when the first TDS meter 17 detects that the TDS concentration reaches a preset threshold value, the circulation is started; when the first TDS meter 17 detects that the TDS concentration is less than a predetermined threshold, the booster pump 4 is turned off and the cycle is stopped. For another example, when the water purifying apparatus is restarted, the third valve 12 is temporarily not opened until the first TDS meter 17 detects that the TDS concentration reaches a predetermined threshold, and then the third valve 12 is opened to discharge the wastewater.
As another embodiment of the present invention, a control method of a reverse osmosis water purification system is also disclosed, which is applied to the reverse osmosis water purification system as described above, as shown in fig. 5, the method includes the steps of:
step a, opening a second valve and a third valve, closing a first valve, starting a booster pump and starting water production;
b, under a first specific condition, closing the second valve, opening the first valve and keeping the third valve in an opening state;
c, circulating the purified water at the water outlet sides of the first reverse osmosis filter element and the second reverse osmosis filter element through a circulating pipeline, returning the purified water to a water inlet pipeline to be mixed with the raw water, and entering the water inlet side of the first reverse osmosis filter element; meanwhile, discharging the wastewater at the water inlet side of the second reverse osmosis filter element through a wastewater pipeline;
d, after a second specific condition is reached, closing the booster pump and stopping circulation;
step e, opening the second valve, closing the first valve and the third valve, starting the booster pump and restarting water production;
and f, opening a third valve after a third specific condition is reached.
The step a is a normal water production state of the water purification system, the steps b to d are a circulation state, and the steps e and f are a water production state which is restarted after the water purification system is stopped for a period of time. In this scheme, water purification system stops normally the back, and the water inlet pipe way 3 is constantly circulated back to through circulation pipeline 9 to the water purification of first reverse osmosis filter core 5, the play water side 53 of second reverse osmosis filter core 6, and the quality of water in first reverse osmosis filter core 5, the second reverse osmosis filter core 6 is better, and after water purification unit restarted, the user of just beginning to go out when making water can directly drink, does not influence the quotation even though shut down for a long time, improves user's water experience.
It should be noted that, steps a, b, c, d, e and f in the above schemes are only for convenience of the following schemes, and do not represent the order limitation between the steps.
Further, after the step a, the method further comprises:
the first flowmeter and the second flowmeter respectively record the raw water quantity and the purified water quantity;
and calculating the amount of wastewater according to the amount of raw water and the amount of purified water.
The first flow meter 13 can record the raw water amount, and the second flow meter 14 can record the purified water amount, so as to obtain the wastewater amount, the purified water and the wastewater proportion, monitor the specific water production condition of the reverse osmosis water purification system 2, and take different actions according to the water production condition, for example, determine whether to clean or replace the reverse osmosis filter element according to the wastewater amount, the purified water and the wastewater proportion.
Further, after the step a, the method further comprises:
the second flowmeter records the pure water quantity, and the fourth flowmeter records the waste water quantity to obtain the proportion of the pure water quantity to the waste water quantity;
and when the ratio of the purified water quantity to the waste water quantity exceeds a first preset threshold value, giving an alarm or adjusting the opening frequency of the third valve according to the ratio of the purified water quantity to the waste water quantity.
In the scheme, an alarm can be sent out or the opening frequency of the third valve 12 can be adjusted to change the amount of wastewater, so that the operation risk of the water purification system is reduced.
The step b may specifically be:
when the purified water volume recorded by the second flowmeter is kept unchanged, after a third preset time, closing the second valve, opening the first valve and keeping the third valve in an opening state; the first specific condition is that "when the purified water amount recorded by the second flowmeter remains unchanged, after a third preset time elapses".
The third flow meter records the flow of water from the outlet side of the first reverse osmosis filter element to the recirculation line.
Correspondingly, the step d specifically includes:
and after the water flow recorded by the third flow meter reaches the first preset flow value, closing the booster pump and stopping circulation.
In the scheme, the circulation is started and stopped according to the net water amount recorded by the second flow meter 14 and the water flow amount recorded by the third flow meter 15, and the circulation process is more scientific.
In another embodiment, the step b may specifically be:
when the waste water amount recorded by the fourth flowmeter is kept unchanged, after the fourth preset time, closing the second valve, opening the first valve and keeping the third valve in an opening state; the first specific condition is that "when the amount of wastewater recorded by the fourth flow meter is kept unchanged, after a fourth preset time elapses".
A fourth flow meter 16 records the amount of wastewater discharged from wastewater line 7;
correspondingly, the step d specifically includes:
and after the wastewater amount recorded by the fourth flowmeter reaches a second preset flow value, closing the booster pump and stopping circulation. The second specific condition is that "after the wastewater volume recorded by the fourth flowmeter reaches the second preset flow value".
On the other hand, the step f may specifically be:
the second flowmeter records the net water amount;
when the purified water amount reaches a third preset flow value, a third valve is opened; the third specific condition is "after the purified water amount reaches the third preset flow value" as described above.
In another embodiment, the step f may specifically be:
the second TDS meter detects the total amount of soluble solids of water in a pipeline communicated with the water inlet side of the first reverse osmosis filter element and the water inlet side of the second reverse osmosis filter element;
when the total amount of the soluble solids detected by the second TDS meter reaches a second preset threshold value, circulating the purified water at the water outlet sides of the first reverse osmosis filter element and the second reverse osmosis filter element through the circulating pipeline, returning the purified water to the water inlet pipeline to be mixed with the raw water, and entering the water inlet side of the first reverse osmosis filter element; meanwhile, discharging the wastewater at the water inlet side of the second reverse osmosis filter element through a wastewater pipeline; the first specific condition is specifically that the total amount of the soluble solids detected by the second TDS meter reaches a second preset threshold.
Correspondingly, the step d specifically includes:
when the total amount of the dissolved solids detected by the second TDS meter is less than a third preset threshold value, the booster pump is closed and the circulation is stopped; or when the total amount of the dissolved solids detected by the first TDS meter reaches a fourth preset threshold value, the booster pump is turned off and the circulation is stopped. The second specific condition is that "when the total amount of dissolved solids detected by the second TDS meter is less than a third preset threshold" or "when the total amount of dissolved solids detected by the first TDS meter reaches a fourth preset threshold".
In this scheme, directly judge the quality of water condition in first reverse osmosis filter core 5 and the second reverse osmosis filter core 6 through TDS concentration, it is more accurate.
In another embodiment, the step f may specifically be:
the second TDS meter detects the total amount of soluble solids of water in a pipeline communicated with the water inlet side of the first reverse osmosis filter element and the water inlet side of the second reverse osmosis filter element;
when the total amount of the dissolved solids detected by the second TDS meter is greater than a fifth preset threshold value, a third valve is opened; the third specific condition is specifically that "when the total amount of the soluble solids detected by the second TDS meter is greater than a fifth preset threshold value".
In addition, the first specific condition and the second specific condition in the step b may be both a first preset time; the third specific condition in the step e is a second preset time.
It should be noted that, first preset time, second preset time, third preset time, fourth preset time, first preset flow value, second preset flow value, third preset flow value, first preset threshold value, second preset threshold value, third preset threshold value, fourth preset threshold value, fifth preset threshold value all can specifically set up according to actual need, for example, first preset time can be 1-2min, second preset time can be 30-40s, third preset time and fourth preset time can be 10 min.
As shown in fig. 6, as another embodiment of the present invention, a water purifying apparatus is also disclosed, which comprises the reverse osmosis water purifying system as described above.
It should be noted that, the limitations of the steps involved in the present disclosure are not considered to limit the order of the steps on the premise of not affecting the implementation of the specific embodiment, and the steps written in the foregoing may be executed first, or executed later, or even executed simultaneously, as long as the present disclosure can be implemented, all should be considered as belonging to the protection scope of the present disclosure.
The foregoing is a more detailed description of the present invention, taken in conjunction with specific alternative embodiments, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (10)

1. A reverse osmosis water purification system, characterized in that, the water purification system includes:
a water inlet pipeline;
the booster pump is arranged on the water inlet pipeline;
the water inlet side of the first reverse osmosis filter element is communicated with the water inlet pipeline;
the water inlet side of the second reverse osmosis filter element is communicated with the water inlet side of the first reverse osmosis filter element;
the waste water pipeline is communicated with the water inlet side of the second reverse osmosis filter element;
the water outlet pipeline is communicated with the water outlet side of the second reverse osmosis filter element;
one end of the circulating pipeline is communicated with the water inlet pipeline, and the other end of the circulating pipeline is communicated with the water outlet pipeline;
the first valve is arranged on the circulating pipeline;
the second valve is arranged on the water outlet pipeline and is positioned behind the communication part of the circulating pipeline and the water outlet pipeline;
the third valve is arranged on the waste water pipeline;
wherein, the water outlet side of the first reverse osmosis filter element is communicated with the circulating pipeline, and the communication position is positioned behind the first valve.
2. The reverse osmosis water purification system of claim 1, wherein the water purification system comprises a first flow meter and a second flow meter; the first flowmeter is arranged on the water inlet pipeline and is positioned in front of a communication position of the circulating pipeline and the water inlet pipeline; the second flowmeter is arranged on the water outlet pipeline.
3. The reverse osmosis water purification system of claim 2, wherein the water purification system comprises a third flow meter; the third flow meter is arranged on a pipeline which is communicated with the circulating pipeline at the water outlet side of the first reverse osmosis filter element.
4. A reverse osmosis water purification system according to claim 3, wherein the water purification system comprises a fourth flow meter, the fourth flow meter being arranged on the waste water line.
5. The reverse osmosis water purification system of claim 1, wherein the water purification system comprises a second flow meter and a fourth flow meter; the second flowmeter is arranged on the water outlet pipeline; the fourth flow meter is disposed on the waste water line.
6. The reverse osmosis water purification system of any one of claims 1 to 5, wherein the water purification system comprises a first TDS meter; the first TDS meter is arranged on the water inlet pipeline and is positioned behind the communication position of the circulating pipeline and the water inlet pipeline.
7. The reverse osmosis water purification system of any one of claims 1 to 5, wherein the water purification system comprises a second TDS meter; the second TDS meter is arranged on a pipeline communicated with the water inlet side of the first reverse osmosis filter element and on the water inlet side of the second reverse osmosis filter element.
8. The reverse osmosis water purification system of any one of claims 1 to 5, wherein the water purification system comprises a water inlet valve disposed on a water inlet line.
9. The reverse osmosis water purification system of claim 8, wherein the water inlet valve is positioned on a side of the circulation line that communicates with the water inlet line away from the first reverse osmosis cartridge.
10. A water purification apparatus comprising a reverse osmosis water purification system according to any one of claims 1 to 9.
CN202021812994.4U 2020-08-26 2020-08-26 Reverse osmosis water purification system and water purification unit Active CN213294798U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114105252A (en) * 2020-08-26 2022-03-01 云米互联科技(广东)有限公司 Reverse osmosis water purification system, control method and water purification equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114105252A (en) * 2020-08-26 2022-03-01 云米互联科技(广东)有限公司 Reverse osmosis water purification system, control method and water purification equipment

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