CN111137951A - Drinking water pipeline structure, water purifier and water purifier control method - Google Patents
Drinking water pipeline structure, water purifier and water purifier control method Download PDFInfo
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- CN111137951A CN111137951A CN201910781469.6A CN201910781469A CN111137951A CN 111137951 A CN111137951 A CN 111137951A CN 201910781469 A CN201910781469 A CN 201910781469A CN 111137951 A CN111137951 A CN 111137951A
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- pure water
- osmosis filter
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 330
- 239000003651 drinking water Substances 0.000 title claims abstract description 38
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000002351 wastewater Substances 0.000 claims abstract description 112
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 81
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000011010 flushing procedure Methods 0.000 claims description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 238000011045 prefiltration Methods 0.000 claims description 14
- 239000002699 waste material Substances 0.000 claims description 7
- 235000012206 bottled water Nutrition 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 abstract description 15
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 8
- 229910017053 inorganic salt Inorganic materials 0.000 abstract description 8
- 239000007787 solid Substances 0.000 abstract description 7
- 239000012528 membrane Substances 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 239000012466 permeate Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 239000013043 chemical agent Substances 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
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 150000001455 metallic ions Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 108700012359 toxins Proteins 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention provides a drinking water pipeline structure, a water purifier and a water purifier control method. The drinking water pipeline structure includes: the reverse osmosis filter is internally provided with a reverse osmosis filter element, a raw water cavity and a pure water cavity are arranged in the reverse osmosis filter, raw water in the raw water cavity flows through the reverse osmosis filter element to filter wastewater and pure water, and the pure water enters the pure water cavity; the water inlet pipe is communicated with the raw water cavity; the pure water pipe is communicated with the pure water cavity and is provided with a pure water check valve; the waste water electromagnetic valve and the vacuum pump are arranged on the waste water pipe, and the waste water enters the waste water pipe. The invention utilizes the vacuum pump to pump out the mixed liquid of the raw water and the pure water which are permeated into the reverse osmosis filter element, avoids inorganic salt ions, heavy metal ions and the like from permeating into the central pipe of the reverse osmosis filter and flowing into the pure water pipe, prevents the phenomenon that the content of the soluble solid in a part of pure water which firstly flows out from the pure water faucet exceeds the standard, and ensures the drinking water health of a user.
Description
Technical Field
The invention relates to the field of water dispensers, in particular to a drinking water pipeline structure, a water purifier and a water purifier control method.
Background
With the development of science and technology and the improvement of living standard of people, people pay more and more attention to drinking water safety, and the water purifier also begins to be popularized gradually. Wherein, the water purifier is water treatment equipment for carrying out deep filtration and purification treatment on water quality according to the use requirement of the water. The technical core is a filtering membrane in a filter element device, and the filtering membrane is mainly an ultrafiltration membrane and a Reverse Osmosis (RO) membrane at present. The water purifier can effectively filter rust, sand, colloid in water and adsorb chemical agents such as residual chlorine, odor, abnormal colors, pesticides and the like in water. Can effectively remove the impurities such as bacteria, germs, toxins, heavy metals and the like in the water.
However, the drinking water pipeline structure, the water purifier and the control method of the water purifier are still to be improved.
Disclosure of Invention
The inventor discovers that the user is when using the water purifier, a lot of times is intermittent type nature water intaking, after the user stops the water intaking, the booster device stop work that the reverse osmosis filter element intake the side, still leave partial raw water and waste water in the reverse osmosis filter element among the reverse osmosis water purifier this moment, because some metallic ion permeable reverse osmosis membrane in the aquatic, reverse osmosis membrane soaks always can take place the osmosis phenomenon in the mixed liquid of raw water and waste water, make inorganic salt ion, heavy metal ion etc. permeate to the center tube in, and then enter into the pure water pipeline that the user was taken, lead to at first from the partly pure water that pure water tap flowed out in the dissolubility solid content exceeds standard, be unfavorable for user's healthy.
The invention mainly aims to provide a drinking water pipeline structure, and aims to solve the problem that the content of soluble solids in first cup water taken again after a user does not take water for a long time exceeds the standard.
The main object of the present invention is to provide a drinking water pipeline structure, which includes:
the reverse osmosis filter is internally provided with a reverse osmosis filter element, a raw water cavity and a pure water cavity are formed in the reverse osmosis filter, raw water in the raw water cavity flows through the reverse osmosis filter element to filter wastewater and pure water, and the pure water enters the pure water cavity;
the water inlet pipe is communicated with the raw water cavity;
the pure water pipe is communicated with the pure water cavity and is provided with a pure water check valve;
the waste water electromagnetic valve and the vacuum pump are arranged on the waste water pipe, and the waste water enters the waste water pipe.
Optionally, the inlet pipe comprises:
the main water inlet pipe is connected with a pre-filter and a booster pump;
and the water inlet flushing pipe is connected with the pre-filter and the booster pump in parallel.
Optionally, a first water inlet electromagnetic valve is arranged between the pre-filter and the booster pump;
and the water inlet flushing pipe is connected with a second water inlet electromagnetic valve and a flushing check valve.
Optionally, the waste comprises:
the waste water electromagnetic valve is connected to the main waste water pipe;
the water inlet of the waste water flushing pipe is connected with the reverse osmosis filter element, the water outlet of the waste water flushing pipe is connected with the water outlet of the waste water electromagnetic valve, and the vacuum pump is connected to the waste water flushing pipe.
Optionally, the main wastewater pipe and the wastewater flushing pipe are both connected with a wastewater check valve.
Optionally, the pure water pipe is connected with an activated carbon filter and a high-voltage switch, and the high-voltage switch is located between the pure water check valve and the activated carbon filter.
The present invention also proposes a water purifier comprising:
a drinking water line structure as claimed in any one of the above;
a housing, said potable water line structure mounted within said housing;
and the controller is electrically connected with the vacuum pump of the drinking water pipeline structure so as to control the vacuum pump to pump out the mixed liquid of the raw water and the pure water in the reverse osmosis filter element.
The invention also provides a control method of the water purifier, which comprises the following steps:
when the water taking is detected to stop, recording the water taking stopping time length;
when the water taking stopping time length reaches a first preset time length, the high-voltage switch of the water purifier is controlled to be switched off, the first water inlet electromagnetic valve is controlled to be switched off, and the booster pump stops working;
and controlling the waste water electromagnetic valve to be opened and the vacuum pump to continuously work so as to completely pump out the mixed liquid of the raw water and the pure water in the reverse osmosis filter element.
Optionally, after the steps of controlling the high-voltage switch of the water purifier to be turned off, the first water inlet electromagnetic valve to be turned off, and the booster pump to stop working, the method further includes:
and controlling a second water inlet electromagnetic valve, a flushing check valve and a wastewater check valve on a wastewater flushing pipe of the water purifier to be opened.
Optionally, before the step of recording the water intake stop time length when the water intake stop is detected, the water purifier control method further includes:
judging whether a starting signal of the water purifier is detected or not;
and if so, executing the step of recording the water taking stopping time length when the water taking stopping is detected.
The technical scheme of the invention is that a water inlet pipe, a pure water pipe and a waste water pipe are connected on a reverse osmosis filter, wherein the water inlet pipe is communicated with a raw water cavity of the reverse osmosis filter, the pure water pipe is communicated with a pure water cavity of the reverse osmosis filter, the waste water pipe is communicated with a reverse osmosis filter element, raw water in the raw water cavity flows through the reverse osmosis filter element to filter waste water and pure water, the pure water enters the pure water cavity, the waste water enters the waste water pipe, a pure water check valve is arranged on the pure water pipe, a waste water electromagnetic valve and a vacuum pump are arranged on the waste water pipe, a controller is electrically connected with the vacuum pump to control the vacuum pump to pump out a mixed liquid of the raw water and the pure water in the reverse osmosis filter element, so that the mixed liquid of the raw water and the pure water which permeates into the reverse osmosis filter element is pumped out by the vacuum pump, inorganic salt, the drinking water health of the user is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of a drinking water pipeline structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of another embodiment of a drinking water pipeline structure of the present invention;
FIG. 3 is a schematic structural view of a drinking water pipeline structure according to another embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a control method of a water purifier according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating a control method of a water purifier according to another embodiment of the present invention;
fig. 6 is a flowchart illustrating a control method of a water purifier according to another embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
24 | Waste |
| 11 | Main |
25 | Waste |
| 12 | |
26 | |
| 13 | First water inlet |
30 | |
| 14 | |
31 | Pure |
| 15 | Water |
32 | High- |
| 16 | Second water inlet |
33 | Activated |
| 17 | |
40 | |
| 20 | |
41 | Reverse osmosis filter element |
| 21 | |
42 | |
| 22 | Waste water |
43 | Pure water cavity |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 and 2, in order to achieve the above object, the present invention provides a drinking water pipeline structure, including: a reverse osmosis filter 40, a water inlet pipe 10, a pure water pipe 30, and a waste water pipe 20. A reverse osmosis filter element 41 is installed in the reverse osmosis filter 40, a raw water cavity 42 and a pure water cavity 43 are formed in the reverse osmosis filter 40, raw water in the raw water cavity 42 flows through the reverse osmosis filter element 41 to filter out wastewater and pure water, and the pure water enters the pure water cavity 43; the water inlet pipe 10 is communicated with the raw water cavity 42; the pure water pipe 30 is communicated with the pure water cavity 43, and the pure water pipe 30 is provided with a pure water check valve 31; a wastewater electromagnetic valve 22 and a vacuum pump 26 are arranged on the wastewater pipe 20, and the wastewater enters the wastewater pipe 20.
In this embodiment, the drinking water pipeline structure is applied to the water purifier, the reverse osmosis filter 41 is located between the raw water chamber 42 and the pure water chamber 43, the raw water chamber 42 is communicated with the water inlet pipe 10, the pure water chamber 43 is communicated with the pure water pipe 30, raw water enters the raw water chamber 42 from the water inlet pipe 10, flows through the reverse osmosis filter 41, and is filtered by the reverse osmosis filter 41 into pure water and wastewater, wherein the pure water enters the pure water chamber 43, the wastewater pipe 20 is connected with the reverse osmosis filter 41, and the wastewater enters the wastewater pipe 20, where the wastewater also includes a mixed liquid of the raw water and the pure water in the reverse osmosis filter 41.
The waste water pipe 20 is connected with a waste water electromagnetic valve 22 and a vacuum pump 26, the waste water electromagnetic valve 22 and the vacuum pump 26 are both electrically connected with the controller, and the controller (not shown) controls the waste water electromagnetic valve 22 and the vacuum pump 26 to open and close. The reverse osmosis filter element 41 filters raw water into pure water and wastewater in a normal working state, and wastewater directly enters the wastewater pipe 20 from the reverse osmosis filter element 41, so that when a reverse user stops taking water, the reverse osmosis filter element 41 can retain the wastewater which does not enter the wastewater pipe 20, and when the user does not take water for a long time, the reverse osmosis filter 40 does not work for a long time, so that the wastewater in the reverse osmosis filter element 41 can enter the pure water cavity 43 through the reverse osmosis filter element 41. The vacuum pump 26 on the waste water pipe 20 is electrically connected with the controller to control the vacuum pump 26 to pump out the waste water in the reverse osmosis filter element 41, when the vacuum pump 26 works, the pressure intensity of the section of pipeline from the reverse osmosis filter element 41 to the vacuum pump 26 is increased, so that all the waste water in the reverse osmosis filter element 41 flows into the waste water pipe 20, the phenomenon that inorganic salt ions, heavy metal ions and the like penetrate into a central pipe (not marked in the figure) of the reverse osmosis filter 40 and flow into the pure water pipe 30 is avoided, the phenomenon that the content of soluble solids in a part of pure water flowing out from the pure water faucet exceeds the standard at first is prevented, and the drinking water health of a user is.
The pure water check valve 31 connected to the pure water pipe 30 may be manually closed, or may be electrically connected to the controller and controlled by the controller.
Further, as shown in fig. 3, the water inlet pipe 10 includes a main water inlet pipe 11 and a water inlet flushing pipe 15. The main water inlet pipe 11 is connected with a pre-filter 12 and a booster pump 14, and the water inlet flushing pipe 15 is connected with the pre-filter 12 and the booster pump 14 in parallel.
The main water inlet pipe 11 is connected with the water inlet flushing pipe 15 in parallel, when the vacuum pump 26 is started to enter a working state, the controller controls the pre-filter 12 and the booster pump 14 on the main water inlet pipe 11 to be out of work, the main water inlet pipe 11 is not communicated, raw water enters the raw water cavity 42 of the reverse osmosis filter 40 from the water inlet flushing pipe 15, meanwhile, the pure water check valve 31 on the pure water pipe 30 is closed, all waste water in the reverse osmosis filter element 41 flows into the waste water pipe 20, the phenomenon that the content of soluble solids in a part of pure water flowing out from the pure water faucet firstly exceeds the standard is avoided, and the drinking water health of a user is ensured.
The water purifier includes three kinds of mode: a continuous water taking mode, an intermittent water taking mode and a power-off restarting mode.
In the continuous water intake mode, the pre-filter 12 and the booster pump 14 are started to enter a working state, raw water flows through the pre-filter 12 and the booster pump 14 and enters the raw water cavity 42 of the reverse osmosis filter 40, because the reverse osmosis filter element 41 retains waste water, and the concentration of inorganic salt ions and heavy metal ions in the waste water is greater than that of the inorganic salt ions and heavy metal ions in the raw water, therefore, in specific implementation, the booster pump 14 is connected between the pre-filter 12 and the reverse osmosis filter 40, the booster pump 14 increases the pressure of one side of the raw water cavity 42 of the reverse osmosis filter element 41, so that the raw water with low ion concentration can enter the reverse osmosis filter element 41, the raw water is filtered into pure water and waste water by the reverse osmosis filter element 41, the waste water enters the waste water pipe 20, and the pure.
In the intermittent water taking mode, the vacuum pump 26 is started to enter a working state, the controller controls the pre-filter 12 and the booster pump 14 on the main water inlet pipe 11 not to work, the main water inlet pipe 11 is not communicated, raw water enters the raw water cavity 42 of the reverse osmosis filter 40 from the water inlet flushing pipe 15, meanwhile, the pure water check valve 31 on the pure water pipe 30 is closed, and all wastewater in the reverse osmosis filter element 41 flows into the wastewater pipe 20. The intermittent water taking mode is different from the power-off water taking mode in water taking interval duration, when the water taking interval duration of a user is greater than a first preset duration, the intermittent water taking mode is entered, and when the water taking interval duration is less than or equal to the first preset duration, the continuous water taking mode is adopted.
And the water purifier enters an outage restart mode after being restarted in an outage, and under the outage restart mode, the water purifier firstly runs an interval water taking mode with a second preset time length and then enters a continuous water taking mode.
Optionally, a first water inlet solenoid valve 13 is arranged between the pre-filter 12 and the booster pump 14, and a second water inlet solenoid valve 16 and a flushing check valve 17 are connected to the water inlet flushing pipe 15.
As an embodiment, the first water inlet solenoid valve 13 and the second water inlet solenoid valve 16 are both controlled by the controller to be switched on and off, and in the intermittent water taking mode, the first water inlet solenoid valve 13 is closed and the second water inlet solenoid valve 16 is opened; in the continuous water intake mode, the first water intake solenoid valve 13 is opened and the second water intake solenoid valve 16 is closed. The flushing check valve 17 can be switched on and off manually or electrically by a controller so as to control the on and off of the pipeline of the water inlet flushing pipe 15.
In particular, said waste 20 comprises a main waste 21 and a waste flush 24. The waste water solenoid valve 22 is connected to the main waste water pipe 21. The water inlet of the waste water flushing pipe 24 is connected with the reverse osmosis filter element 41, the water outlet of the waste water flushing pipe 24 is connected with the water outlet of the waste water electromagnetic valve 22, and the vacuum pump 26 is connected on the waste water flushing pipe 24.
In the power-off water taking mode, the controller controls the wastewater electromagnetic valve 22 to be closed, the vacuum pump 26 is started to work, and the wastewater in the reverse osmosis filter element 41 flows out from the wastewater flushing pipe 24 until the wastewater in the reverse osmosis filter element 41 is completely pumped out.
In one embodiment, a waste water check valve 25 is connected to each of the main waste water pipe 21 and the waste water flushing pipe 24.
The waste water check valve 25 can be opened and closed manually or electrically by a controller so as to control the on-off of the pipeline where the waste water check valve is positioned.
The pure water pipe 30 is connected with an activated carbon filter 33 and a high-voltage switch 32, and the high-voltage switch 32 is located between the pure water check valve 31 and the activated carbon filter 33.
In one embodiment, the pure water in the pure water chamber 43 flows into the pure water pipe 30 and then flows through the activated carbon filter 33 for further filtration, and the high pressure switch 32 is located between the pure water check valve 31 and the activated carbon filter 33.
The present invention also proposes a water purifier comprising: drinking water line construction, housing (not shown), and controller as described above. The drinking water line structure is mounted within the housing. The controller is electrically connected with the vacuum pump 26 of the drinking water pipeline structure to control the vacuum pump 26 to pump out the mixed liquid of the raw water and the pure water in the reverse osmosis filter element 41. Thus, the water purifier may have all the features and advantages of the drinking water pipeline structure described above, and thus, the description thereof is omitted.
In this embodiment, the drinking water pipeline structure and the controller are installed in the housing of the water purifier, and the controller is electrically connected to the vacuum pump 26 to control the vacuum pump 26 to pump out the mixed liquid of the raw water and the pure water in the reverse osmosis filter element 41, so that all the wastewater in the reverse osmosis filter element 41 flows into the wastewater pipe 20, thereby preventing inorganic salt ions, heavy metal ions and the like from penetrating into the central pipe of the reverse osmosis filter 40 and flowing into the pure water pipe 30, preventing the phenomenon that the content of soluble solids in a part of pure water flowing out from the pure water faucet exceeds the standard, and ensuring the drinking water health of the user.
The present invention also provides a method for controlling a water purifier, which may be used to control the water purifier described above, and thus, the method may have all the features and advantages of the water purifier described above, which will not be described herein again. Specifically, as shown in fig. 4, the control method of the water purifier includes the following steps:
s10, recording the water taking stopping time length when detecting that the water taking is stopped;
s20, when the water taking stop time length reaches a first preset time length, the high-voltage switch of the water purifier is controlled to be switched off, the first water inlet electromagnetic valve is controlled to be switched off, and the booster pump stops working;
and S30, controlling the waste water electromagnetic valve to be opened and the vacuum pump to work continuously so as to completely pump out the mixed liquid of the raw water and the pure water in the reverse osmosis filter element.
Referring to fig. 1-3, in the intermittent water intake mode, the controller starts timing when detecting that water intake is stopped, and determines whether the timing duration is greater than a first predetermined duration, if so, the high-pressure switch 32 of the water purifier is controlled to be turned off, the first water intake solenoid valve 13 is controlled to be turned off, and the booster pump 14 is controlled to stop working; the wastewater electromagnetic valve 22 is controlled to be opened, and the vacuum pump 26 continuously works, so that the mixed liquid of the raw water and the pure water in the reverse osmosis filter element 41 is completely pumped out, all the wastewater in the reverse osmosis filter element 41 flows into the wastewater pipe 20, inorganic salt ions, heavy metal ions and the like are prevented from permeating into the central pipe of the reverse osmosis filter 40 and flowing into the pure water pipe 30, the phenomenon that the content of soluble solids in part of the pure water flowing out of the pure water faucet exceeds the standard is prevented, and the drinking water health of a user is ensured.
The first predetermined time period is a time period during which the wastewater in the reverse osmosis filter element 41 starts to permeate into the raw water chamber 42 and the pure water chamber 43 when the reverse osmosis filter element 41 is not in operation. The specific time period of the first predetermined time period is not particularly limited, and for example, the first predetermined time period may be 30 minutes, depending on the filtering performance of the reverse osmosis filter cartridge 41.
Alternatively, as shown in fig. 5, after step S20, namely: after the steps of controlling the high-voltage switch of the water purifier to be switched off, closing the first water inlet electromagnetic valve and stopping the booster pump from working, the method also comprises the step of S21: and controlling the second water inlet electromagnetic valve, the flushing check valve and the wastewater check valve on the wastewater flushing pipe of the water purifier to be opened.
When the water inlet pipe 10 comprises the main water inlet pipe 11 and the inlet flushing pipe 15 in the drinking water pipeline structure, after the steps of disconnecting the high-pressure switch 32 of the water purifier, closing the first inlet electromagnetic valve 13 and stopping the booster pump 14, the second inlet electromagnetic valve 16, the flushing check valve 17 and the waste water check valve 25 on the waste water flushing pipe 24 of the water purifier are controlled to be opened, so that the raw water enters the raw water cavity 42 of the reverse osmosis filter 40 from the inlet flushing pipe 15. It should be noted that the execution sequence of step 21 and step 30 is not limited, for example, step S30 and step S21 may be performed simultaneously, or step S30 may be performed first, step S21 may be performed second, or step 21 may be performed first, and step 30 may be performed second.
In one embodiment, as shown in fig. 6, in step S10: when the water intake stop is detected, the water purifier control method further includes, before the step of recording the water intake stop time period, S11: judging whether a starting signal of the water purifier is detected or not; and if so, executing the step of recording the water taking stopping time length when the water taking stopping is detected.
When the water purifier is in the power-off state, the controller is not powered on, and after the water purifier is restarted, the controller receives a starting signal, and then the water purifier is controlled to enter an interval water taking mode and operate for a second preset time so as to drain the wastewater in the reverse osmosis filter element 41. The water purifier is controlled to enter the continuous water intake mode after the water purifier keeps operating in the interval water intake mode for a second predetermined period of time, wherein the specific period of time of the second predetermined period of time is not particularly limited, and the second predetermined period of time can be 10 minutes, half an hour or an hour, for example.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A drinking water line structure, comprising:
the reverse osmosis filter is internally provided with a reverse osmosis filter element, a raw water cavity and a pure water cavity are formed in the reverse osmosis filter, raw water in the raw water cavity flows through the reverse osmosis filter element to filter wastewater and pure water, and the pure water enters the pure water cavity;
the water inlet pipe is communicated with the raw water cavity;
the pure water pipe is communicated with the pure water cavity and is provided with a pure water check valve;
the waste water electromagnetic valve and the vacuum pump are arranged on the waste water pipe, and the waste water enters the waste water pipe.
2. The drinking water line structure of claim 1, wherein the inlet tube includes:
the main water inlet pipe is connected with a pre-filter and a booster pump;
and the water inlet flushing pipe is connected with the pre-filter and the booster pump in parallel.
3. The drinking water pipeline structure according to claim 2, wherein a first water inlet solenoid valve is provided between the pre-filter and the booster pump;
and the water inlet flushing pipe is connected with a second water inlet electromagnetic valve and a flushing check valve.
4. A drinking water line structure as claimed in claim 3, wherein the waste water pipe comprises:
the waste water electromagnetic valve is connected to the main waste water pipe;
the water inlet of the waste water flushing pipe is connected with the reverse osmosis filter element, the water outlet of the waste water flushing pipe is connected with the water outlet of the waste water electromagnetic valve, and the vacuum pump is connected to the waste water flushing pipe.
5. The drinking water pipeline structure of claim 4 wherein a waste water check valve is connected to both the main waste pipe and the waste water flushing pipe.
6. The drinking water pipeline structure according to claim 1, wherein an activated carbon filter and a high-pressure switch are connected to the pure water pipe, and the high-pressure switch is located between the pure water check valve and the activated carbon filter.
7. A water purifier, characterized in that the water purifier comprises:
the drinking water line structure as claimed in any one of claims 1-6;
a housing, said potable water line structure mounted within said housing;
and the controller is electrically connected with the vacuum pump of the drinking water pipeline structure so as to control the vacuum pump to pump out the mixed liquid of the raw water and the pure water in the reverse osmosis filter element.
8. A water purifier control method characterized by comprising the steps of:
when the water taking is detected to stop, recording the water taking stopping time length;
when the water taking stopping time length reaches a first preset time length, the high-voltage switch of the water purifier is controlled to be switched off, the first water inlet electromagnetic valve is controlled to be switched off, and the booster pump stops working;
and controlling the waste water electromagnetic valve to be opened and the vacuum pump to continuously work so as to completely pump out the mixed liquid of the raw water and the pure water in the reverse osmosis filter element.
9. The method for controlling a water purifier according to claim 8, wherein after the steps of controlling the high-voltage switch of the water purifier to be turned off, the first water inlet solenoid valve to be turned off, and the booster pump to stop operating, the method further comprises:
and controlling a second water inlet electromagnetic valve, a flushing check valve and a wastewater check valve on a wastewater flushing pipe of the water purifier to be opened.
10. The water purifier control method according to claim 9, wherein before the step of recording a water intake stop time period when the water intake stop is detected, the water purifier control method further comprises:
judging whether a starting signal of the water purifier is detected or not;
and if so, executing the step of recording the water taking stopping time length when the water taking stopping is detected.
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