CN113955826A - Flushing method of water purifier, water purifier and device with storage function - Google Patents
Flushing method of water purifier, water purifier and device with storage function Download PDFInfo
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- CN113955826A CN113955826A CN202010700942.6A CN202010700942A CN113955826A CN 113955826 A CN113955826 A CN 113955826A CN 202010700942 A CN202010700942 A CN 202010700942A CN 113955826 A CN113955826 A CN 113955826A
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- osmosis filter
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 446
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 193
- 239000002351 wastewater Substances 0.000 claims abstract description 115
- 230000008569 process Effects 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 11
- 230000004044 response Effects 0.000 claims description 7
- 230000006386 memory function Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 abstract description 17
- 238000003911 water pollution Methods 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 description 27
- 230000000694 effects Effects 0.000 description 14
- 238000001914 filtration Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 230000006870 function Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
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Classifications
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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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- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/04—Non-contaminated water, e.g. for industrial water supply for obtaining ultra-pure water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Abstract
The invention provides a flushing method of a water purifier, the water purifier and a device with a storage function. The flushing method comprises the steps of receiving a stopping instruction, responding to the stopping instruction, and operating for a first time in a first flushing mode; the first flush mode includes: communicating a water pump with a raw water end of a second reverse osmosis filter element, a wastewater end and a wastewater opening of the second reverse osmosis filter element, a pure water end of the second reverse osmosis filter element, a raw water end of a first reverse osmosis filter element, a wastewater end and a wastewater opening of the first reverse osmosis filter element; replacing the wastewater of the first reverse osmosis filter element with the pure water of the second reverse osmosis filter element; operating in a second flush mode for a second time; the second flush mode includes: communicating the water pump with the raw water end of the second reverse osmosis filter element, the waste water end of the second reverse osmosis filter element and the waste water port; the raw water through the water pump replaces the waste water of the second reverse osmosis filter element, so that the ion concentration value of the concentrated water before the membranes of the first reverse osmosis filter element and the second reverse osmosis filter element is reduced, and the pure water pollution is avoided.
Description
Technical Field
The invention relates to the technical field of water purification, in particular to a flushing method of a water purifier, the water purifier and a device with a storage function.
Background
The core part of the reverse osmosis water purifier is a reverse osmosis membrane, and the filtration principle is that ions in raw water are intercepted by the reverse osmosis membrane under the driving of pressure so as to form concentrated water in front of the membrane and form pure water behind the membrane, thereby realizing the effect of reducing the ion concentration in the pure water. When the purifier was shut down, the raw water stopped to flow, and at this moment, there was not the pure water to produce, and the concentrated water and the pure water of membrane both sides are under the drive of ion concentration difference, and the ion in the concentrated water can permeate the pure water, causes the pure water to be contaminated for when the purifier was restarted, the TDS concentration of the aquatic that the user accepted was higher, did not reach the effect of water purification.
Therefore, in order to solve the above problems, it is necessary to provide a new flushing method for a water purifier, and a device with a storage function.
Disclosure of Invention
In order to achieve the above object, the present invention provides a flushing method for a water purifier, the water purifier comprising: a water pump; the water pump is connected with the water pump, the waste water end of the first reverse osmosis filter element is connected with the waste water port, and the pure water end of the first reverse osmosis filter element is connected with the pure water port; the raw water end of the second reverse osmosis filter element is connected with the water pump, the waste water end of the second reverse osmosis filter element is connected with the waste water port, and the pure water end of the second reverse osmosis filter element is connected with the pure water port; the pure water end of the second reverse osmosis filter element is connected with the raw water end of the first reverse osmosis filter element; the flushing method comprises the following steps: receiving a stop instruction; operating in a first flush mode for a first time in response to the stop command; the first flush mode comprises: communicating a water pump with a raw water end of a second reverse osmosis filter element, a wastewater end and a wastewater opening of the second reverse osmosis filter element, a pure water end of the second reverse osmosis filter element, a raw water end of a first reverse osmosis filter element, a wastewater end and a wastewater opening of the first reverse osmosis filter element; replacing the wastewater of the first reverse osmosis filter element with pure water of a second reverse osmosis filter element; operating in a second flush mode for a second time; the second flush mode comprises: communicating a water pump with a raw water end of the second reverse osmosis filter element, a waste water end of the second reverse osmosis filter element and a waste water port; and replacing the wastewater of the second reverse osmosis filter element by raw water of the water pump.
As a further improvement of the invention, the pure water end of the second reverse osmosis filter element is connected with the waste water port; the flushing method further comprises: receiving a starting instruction; operating in a third flush mode for a third time in response to the start command; the third flush mode includes: the water pump is communicated with the raw water end of the first reverse osmosis filter element, the pure water end of the first reverse osmosis filter element and the pure water port; and the water pump is communicated with the raw water end of the second reverse osmosis filter element, and the pure water end and the waste water port of the second reverse osmosis filter element are communicated.
As a further improvement of the invention, the washing machine is operated in the first washing mode for a first time and then operated in the second washing mode for a second time.
As a further improvement of the present invention, the rinsing method further comprises: in the process of operating in a third flushing mode, detecting and obtaining a first water quality state value of a water inlet of the water pump and a second water quality state value of the pure water port; and updating the first time according to the comparison result of the first water quality state value and the second water quality state value.
As a further improvement of the present invention, the updating the first time according to the comparison result between the first water quality status value and the second water quality status value includes: and if the ratio of the second water quality state value to the first water quality state value is determined to be larger than the threshold value, increasing the first time by unit time.
As a further improvement of the present invention, the rinsing method further comprises: after the water pump operates in a third flushing mode for a third time, detecting and obtaining a third water quality state value of the water inlet of the water pump and a fourth water quality state value of the pure water inlet; and updating the second time and the third time according to the comparison result of the third water quality state value and the fourth water quality state value.
As a further improvement of the present invention, the updating the second time and the third time according to the comparison result between the third water quality status value and the fourth water quality status value includes: and if the ratio of the fourth water quality state value to the third water quality state value is determined to be greater than the threshold value, increasing the unit time for both the second time and the third time.
As a further improvement of the present invention, the flushing method further comprises detecting and obtaining a fifth water quality state value of the wastewater end of the first reverse osmosis filter element and a sixth water quality state value of the pure water port during the operation in the first flushing mode; updating the first time according to the comparison result of the fifth water quality state value and the sixth water quality state value; in the process of operating in a second flushing mode, detecting and obtaining a seventh water quality state value of the waste water end of the second reverse osmosis filter element and an eighth water quality state value of the water inlet of the water pump; and updating the second time according to the comparison result of the seventh water quality state value and the eighth water quality state value.
As a further improvement of the present invention, the water quality status value is an ion concentration value.
The invention also provides a water purifier, comprising: a processor, a memory, and communication circuitry, the processor coupled to the memory and the communication circuitry, respectively; the processor, the memory and the communication circuit are operable to implement the flushing method described above.
The invention also provides a device with a memory function, which stores program instructions that can be executed to implement the flushing method as described above.
Compared with the prior art, the invention has the beneficial effects that:
the flushing method of the water purifier provided by the invention comprises a first flushing mode and a second flushing mode. On one hand, when the first flushing mode is operated, raw water flows into a raw water end of the second reverse osmosis filter element after being pressurized by the water pump, and is divided into waste water and pure water under the filtering action of the second reverse osmosis filter element, the waste water flows from the waste water end of the second reverse osmosis filter element to a waste water outlet to be discharged, and the pure water flows from a pure water end of the second reverse osmosis filter element to a raw water end of the first reverse osmosis filter element to replace the waste water of the first reverse osmosis filter element by the pure water of the second reverse osmosis filter element, so that the waste water of the first reverse osmosis filter element flows from the waste water end of the first reverse osmosis filter element to the waste water outlet to be discharged, further, the ion concentration value of the pre-membrane concentrated water of the first reverse osmosis filter element is reduced, and the ion concentration value of the pre-membrane concentrated water is prevented from being excessively high and being transferred to the pure water end; on the other hand, when the second flushing mode is operated, raw water flows into the raw water end of the second reverse osmosis filter element after passing through the water pump, so that the raw water passing through the water pump replaces the wastewater of the second reverse osmosis filter element, the wastewater of the second reverse osmosis filter element flows to the wastewater outlet from the wastewater end of the second reverse osmosis filter element, the ion concentration value of the pre-membrane concentrated water of the second reverse osmosis filter element is reduced, and the situation that the ion concentration value of the pre-membrane concentrated water is too high and is transferred to the pure water end is avoided. Through the combined flushing effect of the first flushing mode and the second flushing mode, the ion concentration value of the concentrated water before the membranes of the first reverse osmosis filter element and the second reverse osmosis filter element is reduced, the pure water pollution is avoided, and the water outlet quality of the water purifier after restarting is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
FIG. 1 is a schematic structural diagram of a water purifier according to an embodiment of the present invention;
FIG. 2 is a schematic view of a water purifier according to another embodiment of the present invention;
FIG. 3 is a schematic structural view of a water purifier according to another embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a flushing method of a water purifier according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating a flushing method of a water purifier according to another embodiment of the present invention;
FIG. 6 is a schematic diagram of the flow of the water purifier according to the present invention in three flushing modes;
FIG. 7 is a schematic diagram of a water purifier according to the present invention;
FIG. 8 is a schematic structural diagram of a device with a storage function according to the present invention.
The water purifier comprises a water purifier 100, a water pump 10, a first reverse osmosis filter element 21, a second reverse osmosis filter element 23, a front reverse osmosis filter element 25, a rear reverse osmosis filter element 27, a first sensor 31, a second sensor 33, a third sensor 35, a fourth sensor 37, a pure water port 40, a waste water port 50, a first waste water electromagnetic valve 61, a second waste water electromagnetic valve 62, a first normally closed electromagnetic valve 71, a second normally closed electromagnetic valve 72, a third normally closed electromagnetic valve 73, a first switch 81, a second switch 82, a first check valve 91 and a second check valve 92.
Detailed Description
The following describes in detail the embodiments of the present application with reference to the drawings attached hereto.
In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular system structures, interfaces, techniques, etc. in order to provide a thorough understanding of the present application.
The terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship. Further, the term "plurality" herein means two or more than two.
Referring to fig. 1-3, a water purifier 100 is provided. This purifier 100 includes water pump 10, first reverse osmosis filter core 21 and second reverse osmosis filter core 23.
Specifically, the waste water end of the first reverse osmosis filter element 21 is connected with the waste water port 50, and the pure water end of the first reverse osmosis filter element 21 is connected with the pure water port 40; the raw water end of the second reverse osmosis filter element 23 is connected with the water pump 10, the waste water end of the second reverse osmosis filter element 23 is connected with the waste water port 50, and the pure water end of the second reverse osmosis filter element 23 is connected with the pure water port 40; and, the pure water end of the second reverse osmosis filter element 23 is connected to the raw water end of the first reverse osmosis filter element 21.
In an alternative embodiment, a first waste solenoid valve 61 is disposed between the waste end of the first reverse osmosis cartridge 21 and the waste port 50, and a second waste solenoid valve 62 is disposed between the waste end of the second reverse osmosis cartridge 23 and the waste port 50. Wherein, the first wastewater solenoid valve 61 and the second wastewater solenoid valve 62 are both adjustable valves and are provided with drain holes. When first waste water solenoid valve 61 and second waste water solenoid valve 62 are not switched on, utilize the drainage trompil to carry out pressurize waste water drainage, when first waste water solenoid valve 61 and second waste water solenoid valve 62 are switched on, the aperture of first waste water solenoid valve 61 and second waste water solenoid valve 62 is opened to the biggest to waste water drainage, so, through setting up first waste water solenoid valve 61 and second waste water solenoid valve 62 discharge water volume variable, can guarantee the stability of system.
Alternatively, the water pump 10 may be a booster pump, and may be a variable power pump. Therefore, the power of the water pump 10 supplied to one reverse osmosis filter element or a plurality of reverse osmosis filter elements can be adjusted, and the stability of the system is ensured.
In the present embodiment, the pure water port 40 of the first reverse osmosis filter element 21 and the pure water port 40 of the second reverse osmosis filter element 23 may be shared, or the pure water ports 40 may be provided separately. The waste water port 50 of the first reverse osmosis filter element 21 and the waste water port 50 of the second reverse osmosis filter element 23 can be shared, or corresponding waste water ports 50 can be respectively arranged, and the invention is not particularly limited herein.
In addition, in order to control the connection or disconnection of each water path, a first normally closed solenoid valve 71 is connected between the raw water end of the first reverse osmosis filter element 21 and the water outlet of the water pump 10, and the raw water end of the second reverse osmosis filter element 23 is directly connected with the water outlet of the water pump 10. A first switch 81 is arranged between the pure water end of the first reverse osmosis filter element 21 and the pure water port 40 so as to control the on-off of a water path between the pure water end of the first reverse osmosis filter element 21 and the pure water port 40; a second switch 82 is arranged between the pure water end of the second reverse osmosis filter element 23 and the pure water port 40 to control the on-off of the water path between the pure water end of the second reverse osmosis filter element 23 and the pure water port 40. Specifically, the first switch 81 and the second switch 82 may be normally closed solenoid valves, and when the valves are powered on, the waterway is turned on, and when the valves are powered off, the waterway is turned off. Of course, in other embodiments, the first switch 81 and the second switch 82 may be other kinds of switches, and are not limited herein.
It should be noted that, in other embodiments, the number of the reverse osmosis filter elements of the water purifier 100 may also be three or more, for example, when there are three reverse osmosis filter elements of the water purifier 100, the pure water end of the second reverse osmosis filter element may be connected to the raw water end of the first reverse osmosis filter element, so as to replace the wastewater of the first reverse osmosis filter element 21 with the pure water of the second reverse osmosis filter element; and then the pure water end of the third reverse osmosis filter element is connected with the raw water end of the second reverse osmosis filter element so as to replace the wastewater of the second reverse osmosis filter element 23 by the pure water of the third reverse osmosis filter element.
Further, in order to control the water path on/off of the pure water end of the second reverse osmosis filter element 23 and the raw water end of the first reverse osmosis filter element 21, a second normally closed solenoid valve 72 and a first check valve 91 are arranged between the pure water end of the second reverse osmosis filter element 23 and the raw water end of the first reverse osmosis filter element 21, and the first check valve 91 is conducted in the direction from the second reverse osmosis filter element 23 to the first reverse osmosis filter element 21. The setting of first check valve 91 can guarantee that pure water uniflow, and then the stability of lift system.
As shown in fig. 1-2, in this embodiment, the pure water end of the second reverse osmosis cartridge 23 is connected to the waste water port 50. Specifically, a third normally closed solenoid valve 73 and a second check valve 92 are provided between the pure water end of the second reverse osmosis filter element 23 and the waste water port 50, and the second check valve 92 is communicated between the second reverse osmosis filter element 23 and the waste water port 50. The arrangement of the second check valve 92 can ensure the one-way flow of pure water, thereby improving the stability of the system.
Further, in order to detect the water quality state, the water purifier 100 further includes a first sensor 31 and a second sensor 33. The first sensor 31 is connected in front of the water inlet of the water pump 10 and is used for detecting the ion concentration value. The second sensor 33 is connected between the pure water end of the first reverse osmosis filter element 21 and the pure water end of the second reverse osmosis filter element 23 and the pure water port 40, and detects an ion concentration value. Specifically, the first sensor 31 is configured to detect an ion concentration value in the raw water, and the second sensor 33 is configured to detect an ion concentration value in the purified water, so as to adjust the flushing time and the flushing period of the water purifier 100 for the first reverse osmosis filter element 21 and the second reverse osmosis filter element 23 according to a proportional relationship between the ion concentration value in the raw water and the ion concentration value in the purified water.
Also, in another embodiment as shown in fig. 2, the water purifier 100 further comprises a third sensor 35 and a fourth sensor 37. A third sensor 35 is connected between the waste water end of the first reverse osmosis cartridge 21 and the waste water port 50 for detecting an ion concentration value; a fourth sensor 37 is connected between the waste end of the second reverse osmosis cartridge 23 and the waste port 50 for detecting ion concentration.
Specifically, the third sensor 35 is configured to detect an ion concentration value in the wastewater discharged through the first reverse osmosis filter element 21, and the fourth sensor 37 is configured to detect an ion concentration value in the wastewater discharged through the second reverse osmosis filter element 23, so as to control the flushing time of the first reverse osmosis filter element 21 and the second reverse osmosis filter element 23 by the magnitude of the ion concentration value in the concentrated water discharged through the first reverse osmosis filter element 21 or the second reverse osmosis filter element 23 in combination with the combined action of the first sensor 31 and the second sensor 33.
Of course, in other embodiments of the present invention, only the third sensor 35 and the fourth sensor 37 may be provided to control the flushing time of the first reverse osmosis filter element 21 and the second reverse osmosis filter element 23 by detecting the change of the water quality of the third sensor 35 or the fourth sensor 37 per unit time.
As shown in fig. 1 to 3, the water purifier 100 further includes a front reverse osmosis filter element 25 and a rear reverse osmosis filter element 27. The front reverse osmosis filter element 25 is arranged in front of the water inlet of the water pump 10, and the rear reverse osmosis filter element 27 is arranged between the pure water ends of the first reverse osmosis filter element 21 and the second reverse osmosis filter element 23 and the pure water port 40.
Optionally, in a specific embodiment, the pre-reverse osmosis filter element 25 may be configured to perform coarse filtration on silt, rust, colloid, etc. in raw water, and remove residual chlorine and most organic matters, so as to improve the filtering effect and the service life of the first reverse osmosis filter element 21 and the second reverse osmosis filter element 23. The post-positioned reverse osmosis filter element 27 can be arranged for further processing the pure water generated by the filtration of the first reverse osmosis filter element 21 and the second reverse osmosis filter element 23 so as to remove peculiar smell and improve the drinking taste.
Based on the water purifier 100, please refer to fig. 4-5, the invention further provides a flushing method of the water purifier 100, the flushing method comprising:
s11: a stop instruction is received.
The working states of the water purifier 100 are mainly divided into two states, one is a water intake state and the other is a non-water intake state, and the water purifier 100 is in the non-water intake water production state at this time when the stop instruction is received. Specifically, based on the water purifier 100, in an embodiment, the specific working process of the normal water intake state is as follows: raw water enters a water inlet of the water pump 10, the water pump 10 starts pressurization work at the moment, the first normally closed electromagnetic valve 71 is opened, the first switch 81 and the second switch 82 are opened, the first reverse osmosis filter element 21 and the second reverse osmosis filter element 23 normally produce water, pure water produced by the first reverse osmosis filter element 21 passes through the first switch 81, then is converged with pure water produced by the second reverse osmosis filter element 23 after passing through the second switch 82, and is discharged through the pure water port 40. The wastewater generated by the first reverse osmosis filter element 21 passes through the first wastewater solenoid valve 61 and then joins with the wastewater generated by the second reverse osmosis filter element 23 after passing through the second wastewater solenoid valve 62, and is discharged through the wastewater outlet 50.
S12: in response to a stop command, operating in a first flush mode for a first time; the first flush mode includes: communicating the water pump 10 with the raw water end of the second reverse osmosis filter element 23, the waste water end of the second reverse osmosis filter element 23 and the waste water port 50; the pure water passing through the second reverse osmosis filter element 23 displaces the wastewater of the first reverse osmosis filter element 21.
Specifically, when the water purifier 100 is in the state of stopping producing water, the first switch 81 and the second switch 82 are closed, and the pure water is blocked from being discharged from the pure water port 40, at this time, the first flushing mode is started. The specific working process of the first flushing mode is as follows: the water pump 10 continues to operate, the first normally closed solenoid valve 71 is closed, the second normally closed solenoid valve 72 is opened, the second reverse osmosis filter element 23 normally produces water, pure water produced by filtration of the second reverse osmosis filter element 23 flows into the raw water end of the first reverse osmosis filter element 21 through the first check valve 91 and the second normally closed solenoid valve 72, all wastewater of the first reverse osmosis filter element 21 is replaced by pure water, and then the wastewater of the first reverse osmosis filter element 21 is discharged from the wastewater port 50 through the first wastewater solenoid valve 61. Therefore, the ion concentration value of the concentrated water before the membrane of the first reverse osmosis filter element 21 is reduced, and the concentrated water before the membrane is prevented from being transferred to a pure water end due to overhigh ion concentration value.
S13: operating in a second flush mode for a second time; the second flush mode includes: communicating the water pump 10 with the raw water end of the second reverse osmosis filter element 23, the waste water end of the second reverse osmosis filter element 23 and the waste water port 50; the raw water passing through the water pump 10 displaces the wastewater of the second reverse osmosis filter element 23.
Specifically, the working process of the second flushing mode is as follows: the second switch 82 is turned off to block the pure water of the second reverse osmosis filter element 23 from being discharged from the pure water port 40, the water pump 10 does not perform pressurization operation, that is, the second reverse osmosis filter element 23 does not perform filtration, the raw water entering from the water inlet of the water pump 10 replaces the pre-membrane concentrated water of the second reverse osmosis filter element 23 with the raw water, and then the raw water is directly discharged from the wastewater port 50 through the second wastewater solenoid valve 62. Therefore, the working process of the second flushing mode has less noise because the filtering work is not carried out.
Of course, in other embodiments of the present invention, the water pump 10 may also perform pressurization operation, that is, the second reverse osmosis filter element 23 performs filtration, the second check valve 92 and the third normally closed solenoid valve 73 are opened, at this time, the raw water entering from the water inlet of the water pump 10 is filtered by the second reverse osmosis filter element 23 and then divided into pure water and wastewater, the pure water is discharged through the wastewater outlet 50 after passing through the second check valve 92 and the third normally closed solenoid valve 73, and the wastewater is discharged through the wastewater outlet 50 after passing through the second wastewater solenoid valve 62, so that the effect of replacing the pre-membrane concentrated water of the second reverse osmosis filter element 23 with the raw water is also achieved. Therefore, the ion concentration value of the pre-membrane concentrated water of the second reverse osmosis filter element 23 is reduced, and the situation that the ion concentration value of the pre-membrane concentrated water is too high and is transferred to a pure water end is avoided.
It should be noted that, in this embodiment, the adopted flushing manner is to operate for a first time in the first flushing mode, and then operate for a second time in the second flushing mode. Of course, in other embodiments of the present invention, only the first flushing mode or only the second flushing mode may be performed according to actual conditions such as the water intake amount, the water usage time, or the standing time. The first flushing mode and the second flushing mode may be continuous operation or discontinuous operation.
In a further embodiment, the above-mentioned rinsing method further comprises:
s14: receiving a starting instruction;
when the start command is received, the water purifier 100 is in a water intake state, and the user needs to take in the water purifier 100.
S15: operating in a third flush mode for a third time in response to the start command; the third flush mode includes: communicating the water pump 10 with the raw water end of the first reverse osmosis filter element 21, the pure water end of the first reverse osmosis filter element 21 and the pure water port 40; the water pump 10 is connected to the raw water end of the second reverse osmosis filter element 23, the pure water end of the second reverse osmosis filter element 23 and the waste water port 50.
In another embodiment, water purifier 100 performs the third flushing mode when water purifier 100 is in the water intake state, i.e., in response to the start command. The specific working process of the third flushing mode is as follows: when a user takes water, raw water enters a water inlet of the water pump 10, the water pump 10 starts pressurization work at the moment, the first normally closed electromagnetic valve 71 and the third normally closed electromagnetic valve 73 are opened, the first switch 81 is opened, the second switch 82 is closed, the first reverse osmosis filter element 21 and the second reverse osmosis filter element 23 normally produce water, pure water generated by the first reverse osmosis filter element 21 is discharged from the pure water port 40 after passing through the first switch 81, pure water generated by the first reverse osmosis filter element 21 is discharged from the waste water port 50 after passing through the first waste water electromagnetic valve 61, and waste water generated by the first reverse osmosis filter element 21 is discharged from the waste water port 50 after passing through the first waste water electromagnetic valve 61. Pure water produced by the second reverse osmosis filter element 23 passes through the second check valve 92 and the third normally closed solenoid valve 73 and is discharged through the waste water port 50.
Further, when the water purifier 100 operates in the third flushing mode for a period of time, the third normally closed solenoid valve 73 is closed, and the second switch 82 is opened, and the rest is unchanged, at this time, the pure water generated by the first reverse osmosis filter element 21 and the second reverse osmosis filter element 23 is normally supplied to the user through the pure water port 40, that is, the water purifier 100 enters the above-mentioned normal water intake state. Therefore, the pure water in the pure water end of the second reverse osmosis filter element 23 can be discharged through the waste water port 50 after being polluted by the raw water, so as to reduce the ion concentration value in the first cup of water.
In one embodiment, the shut down state is entered after the first and second flush modes are completed. Optionally, when a start instruction is received, the water purifier 100 may directly enter the above-described normal water intake state, or may first perform the third flushing mode and then enter the above-described normal water intake state.
In another embodiment, during the flushing process of the first flushing mode and the second flushing mode, if the start instruction is received, the water purifier 100 may directly enter the third flushing mode first, and then enter the above-mentioned normal water intake state; or may enter the water intake state described above directly.
It is understood that, in one embodiment of the present invention, as shown in fig. 6, the water purifier 100 is in the normal water taking state, and then after the water taking is completed, the stop command is input; the water purifier 100 firstly performs a first flushing mode, performs a second flushing mode after the first flushing mode is finished, and enters a complete machine halt state after the second flushing mode is finished; after a starting instruction is input, namely when a user needs to take water, the third flushing mode is firstly carried out, and the normal water taking state is continuously entered after the third flushing mode is finished.
Of course, in other embodiments of the present invention, the above-mentioned first, second and third flushing modes do not need to be completely performed each time as in the above embodiment, and one or two flushing modes may be selectively performed, which may be specifically adjusted according to actual conditions such as water intake amount, water usage time or standing time.
In one embodiment of the present invention, the first time of the first flushing mode, the second time of the second flushing mode, and the third time of the third flushing mode may be operated for a fixed time, for example, the first time is 1min, the second time is 1min, and the third time is 10 s. Of course, in other embodiments of the present invention, the first time, the second time, and the third time may also be other fixed times, and may be specifically adjusted according to an actual use situation, which is not limited herein.
In another embodiment, the first time, the second time, and the third time may also be adaptive flush times, and the following is described in detail with respect to the manner of the adaptive flush times:
in one embodiment, to determine the first time of the first flush mode, the present invention provides a flush method further comprising: in the process of operating in the third flushing mode, detecting and obtaining a first water quality state value of the water inlet of the water pump 10 and a second water quality state value of the pure water inlet 40; and updating the first time according to the comparison result of the first water quality state value and the second water quality state value.
Specifically, updating the first time according to the comparison result between the first water quality state value and the second water quality state value includes: and if the ratio of the second water quality state value to the first water quality state value is larger than the threshold value, increasing the first time by unit time.
Wherein the first water quality status value is collected by the first sensor 31 and the second water quality status value is collected by the second sensor 33. For example, assuming that the first time is x, after the first flushing mode is completed, a start instruction is received, and a third flushing mode is entered, during the third flushing mode, the first sensor 31 obtains a first water quality state value j, and the second sensor 33 obtains a second water quality state value k. The water purifier 100 compares j and k, if k/j is less than 0.1, the first time x is considered to meet the flushing effect, and the first time x is unchanged; on the contrary, if k/j > 0.1, the first time x at this time is considered to be unable to satisfy the rinsing effect, the unit time n is increased on the basis of the first time x, and the first time is x + n when the first rinsing mode is performed next time. Thus, the first time is updated by continuously cycling the detection.
Note that, in the above-described embodiment, the threshold value is set to 0.1. Of course, in other embodiments of the present invention, the threshold may also be set to other values according to actual use situations, and is not limited herein.
Similarly, to determine the second time of the second flush mode, the present invention provides a flush method further comprising: after the operation is carried out for the third time in the third flushing mode, detecting and obtaining a third water quality state value of the water inlet of the water pump 10 and a fourth water quality state value of the pure water inlet 40; and updating the second time and the third time according to the comparison result of the third water quality state value and the fourth water quality state value.
Specifically, updating the second time and the third time according to the comparison result between the third water quality state value and the fourth water quality state value includes: and if the ratio of the fourth water quality state value to the third water quality state value is determined to be greater than the threshold value, increasing the unit time for the second time and the unit time for the third time.
Wherein the third water quality status value is collected by the first sensor 31 and the second water quality status value is collected by the second sensor 33. And assuming that the second time is x 'and the third time is y', after the second flushing mode is finished, receiving a starting instruction and entering a normal water taking state. The first sensor 31 acquires a third water quality status value j 'and the second sensor 33 acquires a fourth water quality status value k'. The water purifier 100 compares j 'with k', if k '/j' is less than 0.1, the second time x 'and the third time y' are considered to meet the flushing effect, and the second time x 'and the third time y' are unchanged; in contrast, if k '/j' > 0.1, the second time x 'and the third time y' at this time are considered to fail to satisfy the rinsing effect, the unit time n is increased on the basis of the second time x 'and the unit time n is increased on the basis of the third time y'. When the second flushing mode and the third flushing mode are performed next time, the second time is x '+ n, and the third time is y' + n. Thus, the second time and the third time are updated by the continuous loop detection.
Also, it should be noted that, in the above embodiment, the threshold value is set to 0.1. Of course, in other embodiments of the present invention, the threshold may also be set to other values according to actual use situations, and is not limited herein.
In another embodiment, the first time and the second time can be determined by the first sensor 31, the second sensor 33, the third sensor 35, and the fourth sensor 37, and the flushing method includes: in the process of operating in the first flushing mode, detecting and obtaining a fifth water quality state value of the waste water end of the first reverse osmosis filter element 21 and a sixth water quality state value of the pure water port 40; updating the first time according to the comparison result of the fifth water quality state value and the sixth water quality state value; and in the process of operating in the second flushing mode, detecting to obtain a seventh water quality state value of the waste water end of the second reverse osmosis filter element 23 and an eighth water quality state value of the water inlet of the water pump 10, and updating the second time according to a comparison result of the seventh water quality state value and the eighth water quality state value.
For example, if the ratio of the fifth water quality state value to the sixth water quality state value is less than or equal to 1.1, the first time at this time is considered to satisfy the flushing effect, and the first time is not changed; on the contrary, if the ratio of the fifth water quality status value to the sixth water quality status value is greater than 1.1, it is determined that the first time cannot satisfy the flushing effect, and the unit time n is increased based on the first time, which is otherwise the same as the previous embodiment. Similarly, if the ratio of the seventh water quality state value to the eighth water quality state value is less than 1.1, the second time is considered to meet the flushing effect, and the second time is not changed; on the contrary, if the ratio of the seventh water quality status value to the eighth water quality status value is greater than 1.1, the unit time n is increased in addition to the second time if it is determined that the second time does not satisfy the flushing effect.
Of course, in other embodiments of the present invention, the third sensor 35 and the fourth sensor 37 may be directly utilized to determine the change of the water quality state value within a certain time to determine the flushing effect, and further determine the flushing time, which may also achieve the object of the present invention, and therefore, is within the protection scope of the present invention.
The first water quality state value, the second water quality state value, the third water quality state value, the fourth water quality state value, the fifth water quality state value, the sixth water quality state value, the seventh water quality state value, and the eighth water quality state value are ion concentration values. In a specific embodiment, the first water quality state value, the second water quality state value, the third water quality state value, the fourth water quality state value, the fifth water quality state value, the sixth water quality state value, the seventh water quality state value, and the eighth water quality state value may be PH values, hardness values, and the like.
Referring to fig. 7, the present invention further provides a water purifier 100, which includes a processor 41, a memory 42 and a communication circuit 43, wherein the processor 41 is coupled to the memory 42 and the communication circuit 43, respectively, and the processor 41, the memory 42 and the communication circuit 43 can implement the flushing method in any of the above embodiments when operating.
In particular, the processor 41 is configured to control itself and the memory 42 to implement the steps of any of the above-described embodiments of the rinsing method. Processor 41 may also be referred to as a CPU (Central Processing Unit). The processor 41 may be an integrated circuit chip having signal processing capabilities. The Processor 41 may also be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. In addition, processor 41 may be implemented collectively by a plurality of integrated circuit chips.
In addition, referring to fig. 8, the present invention further provides an apparatus having a storage function, in which the storage device 60 stores a program instruction 600 capable of being executed by a processor, and the program instruction 600 is used to implement the temperature measuring method in any of the above embodiments. That is, when the temperature measuring method is implemented in software and sold or used as an independent product, the temperature measuring method may be stored in a storage device 60 readable by an electronic device, and the storage device 60 may be a usb disk, an optical disk, a server, or the like.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a module or a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some interfaces, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (11)
1. A flushing method of a water purifier, the water purifier comprising: a water pump; the water pump is connected with the water pump, the waste water end of the first reverse osmosis filter element is connected with the waste water port, and the pure water end of the first reverse osmosis filter element is connected with the pure water port; the raw water end of the second reverse osmosis filter element is connected with the water pump, the waste water end of the second reverse osmosis filter element is connected with the waste water port, and the pure water end of the second reverse osmosis filter element is connected with the pure water port; the pure water end of the second reverse osmosis filter element is connected with the raw water end of the first reverse osmosis filter element; the flushing method comprises the following steps:
receiving a stop instruction;
operating in a first flush mode for a first time in response to the stop command; the first flush mode comprises: communicating a water pump with a raw water end of a second reverse osmosis filter element, a wastewater end and a wastewater opening of the second reverse osmosis filter element, a pure water end of the second reverse osmosis filter element, a raw water end of a first reverse osmosis filter element, a wastewater end and a wastewater opening of the first reverse osmosis filter element; replacing the wastewater of the first reverse osmosis filter element with pure water of a second reverse osmosis filter element;
operating in a second flush mode for a second time; the second flush mode comprises: communicating a water pump with a raw water end of the second reverse osmosis filter element, a waste water end of the second reverse osmosis filter element and a waste water port; and replacing the wastewater of the second reverse osmosis filter element by raw water of the water pump.
2. The method of flushing according to claim 1 wherein the pure water end of the second reverse osmosis cartridge is connected to the waste water port; the flushing method further comprises:
receiving a starting instruction;
operating in a third flush mode for a third time in response to the start command; the third flush mode includes: the water pump is communicated with the raw water end of the first reverse osmosis filter element, the pure water end of the first reverse osmosis filter element and the pure water port; and the water pump is communicated with the raw water end of the second reverse osmosis filter element, and the pure water end and the waste water port of the second reverse osmosis filter element are communicated.
3. A method as claimed in claim 1, wherein the first time period is followed by the second time period in the second flush mode.
4. The rinsing method according to claim 2, further comprising:
in the process of operating in a third flushing mode, detecting and obtaining a first water quality state value of a water inlet of the water pump and a second water quality state value of the pure water port;
and updating the first time according to the comparison result of the first water quality state value and the second water quality state value.
5. A rinsing method according to claim 4, wherein said updating the first time according to the comparison of the first water quality status value and the second water quality status value comprises:
and if the ratio of the second water quality state value to the first water quality state value is determined to be larger than the threshold value, increasing the first time by unit time.
6. The rinsing method according to claim 2, further comprising:
after the water pump operates in a third flushing mode for a third time, detecting and obtaining a third water quality state value of the water inlet of the water pump and a fourth water quality state value of the pure water inlet;
and updating the second time and the third time according to the comparison result of the third water quality state value and the fourth water quality state value.
7. A rinsing method according to claim 6, wherein said updating the second time and the third time according to the comparison result between the third water quality status value and the fourth water quality status value comprises:
and if the ratio of the fourth water quality state value to the third water quality state value is determined to be greater than the threshold value, increasing the unit time for both the second time and the third time.
8. The rinsing method according to claim 1, further comprising:
in the process of operating in a first flushing mode, detecting and obtaining a fifth water quality state value of the waste water end of the first reverse osmosis filter element and a sixth water quality state value of the pure water port;
updating the first time according to the comparison result of the fifth water quality state value and the sixth water quality state value;
in the process of operating in a second flushing mode, detecting and obtaining a seventh water quality state value of the waste water end of the second reverse osmosis filter element and an eighth water quality state value of the water inlet of the water pump;
and updating the second time according to the comparison result of the seventh water quality state value and the eighth water quality state value.
9. A rinsing method according to any one of claims 4 to 8, wherein the water quality status value is an ion concentration value.
10. A water purifier, comprising: a processor, a memory, and communication circuitry, the processor coupled to the memory and the communication circuitry, respectively; the processor, the memory, and the communication circuitry are operable to implement the flushing method of any of claims 1-9.
11. A device with a memory function, characterized in that the device stores program data which can be executed to implement the flushing method as claimed in any one of claims 1-9.
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| CN202010700942.6A CN113955826A (en) | 2020-07-20 | 2020-07-20 | Flushing method of water purifier, water purifier and device with storage function |
| PCT/CN2020/134689 WO2022016778A1 (en) | 2020-07-20 | 2020-12-08 | Flushing method for water purifier, water purifier, and device having storage function |
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| CN202010700942.6A CN113955826A (en) | 2020-07-20 | 2020-07-20 | Flushing method of water purifier, water purifier and device with storage function |
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Application publication date: 20220121 |