CN113880274A - Water purifier and control method and device thereof - Google Patents
Water purifier and control method and device thereof Download PDFInfo
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- CN113880274A CN113880274A CN202111049931.7A CN202111049931A CN113880274A CN 113880274 A CN113880274 A CN 113880274A CN 202111049931 A CN202111049931 A CN 202111049931A CN 113880274 A CN113880274 A CN 113880274A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/005—Valves
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Abstract
The present disclosure relates to a water purifier and a control method and apparatus thereof. This water purifier includes: the water outlet end of the preposed composite filter element is respectively connected with the water inlet end of the auxiliary reverse osmosis RO filter element and the water inlet end of the main RO filter element; the flux of the main RO filter element is larger than that of the auxiliary RO filter element, and a wastewater outlet of the main RO filter element is connected with a water inlet end of the auxiliary RO filter element; the pure water outlet of the main RO filter element is connected with the water inlet end of the post-filter element; a pure water outlet of the auxiliary RO filter element is connected with a water inlet end of the post-positioned filter element; the pure water outlet of the auxiliary RO filter element is also connected with the water inlet end of the main RO filter element. Wherein, the water purifier falls into the parallelly connected scheme of main vice two RO filter cores, and main RO filter core flux is big, and vice RO filter core flux is little, stops to make water a period after the machine, starts main RO filter core and accomplishes pure water bubble membrane function, and the waste water that the bubble membrane produced filters through vice RO filter core again and carries out recycle, produces waste water when realizing the bubble membrane less, promotes machine water efficiency. And the machine is after shutting down for a long time, and the user next water receiving can not go out the condition emergence that has high concentration TDS.
Description
Technical Field
The disclosure relates to the technical field of water purification control, in particular to a water purifier and a control method and device thereof.
Background
The domestic water purifier products currently use Reverse Osmosis (RO) models as the mainstream, and the products are continuously developed in the direction of gradually increasing flux. Because of the characteristic restriction of RO filtering principle, the waste water concentration is very high before the RO membrane when the product is shut down, and mineral ion can slowly permeate to the membrane back pure water end of low concentration, leads to the pure water TDS value behind the membrane to rise to the water that the user began to connect when next water use all is the high concentration water of high TDS.
In order to solve the problem, some manufacturers replace the high-concentration waste water behind the membrane with tap water or pure water after the machine stops water production, so that the hidden danger that the TDS value of the pure water end behind the membrane is increased too much due to the fact that the machine does not work for a long time is reduced. The waste water displaced by the scheme is directly discharged outside the machine and wasted, and the same action is repeated after water is produced every time, so that the actual utilization efficiency of the machine to water resources is greatly reduced.
Disclosure of Invention
To overcome the problems in the related art, embodiments of the present disclosure provide a water purifier and a control method and apparatus thereof. The technical scheme is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided a water purifier including:
the water inlet end of the front composite filter element is connected with an external water source, the water outlet end of the front composite filter element is connected with the water inlet end of the booster pump, the water outlet end of the booster pump is connected with the water inlet end of the auxiliary RO filter element through a first check valve, and the water outlet end of the booster pump is also connected with the water inlet end of the main reverse osmosis RO filter element through a first electromagnetic valve; wherein the primary RO cartridge flux is greater than the secondary RO cartridge flux;
the waste water outlet of the main RO filter element is connected with the water inlet end of the auxiliary RO filter element through a second check valve;
the pure water outlet of the main RO filter element is connected with the water inlet end of the post-filter element; a third check valve and a second electromagnetic valve are also arranged between the pure water outlet of the main RO filter element and the water inlet end of the post-filter element;
the pure water outlet of the auxiliary RO filter element is connected with the water inlet end of the post-positioned filter element; a third electromagnetic valve and a fourth check valve are also arranged between the pure water outlet of the auxiliary RO filter element and the water inlet end of the post-positioned filter element; the pure water outlet of the auxiliary RO filter element is also connected with the water inlet end of the main RO filter element through a fourth electromagnetic valve;
the waste water outlet of the auxiliary RO filter element is connected with the waste water outlet of the water purifier through a waste water electromagnetic valve;
and a pure water outlet of the rear filter element is connected with a water outlet of the water purifier.
The present disclosure provides a water purifier, including: the water inlet end of the front composite filter element is connected with an external water source, the water outlet end of the front composite filter element is connected with the water inlet end of the booster pump, the water outlet end of the booster pump is connected with the water inlet end of the auxiliary reverse osmosis RO filter element through a first check valve, and the water outlet end of the booster pump is also connected with the water inlet end of the main RO filter element through a first electromagnetic valve; the flux of the main RO filter element is larger than that of the auxiliary RO filter element, and a wastewater outlet of the main RO filter element is connected with a water inlet end of the auxiliary RO filter element through a second check valve; the pure water outlet of the main RO filter element is connected with the water inlet end of the post-filter element; a third check valve and a second electromagnetic valve are also arranged between the pure water outlet of the main RO filter element and the water inlet end of the post-positioned filter element; a pure water outlet of the auxiliary RO filter element is connected with a water inlet end of the post-positioned filter element; a third electromagnetic valve and a fourth check valve are also arranged between the pure water outlet of the auxiliary RO filter element and the water inlet end of the post-positioned filter element; the pure water outlet of the auxiliary RO filter element is also connected with the water inlet end of the main RO filter element through a fourth electromagnetic valve; a wastewater outlet of the auxiliary RO filter element is connected with a wastewater outlet of the water purifier through a wastewater electromagnetic valve; the pure water outlet of the post-positioned filter element is connected with the water outlet of the water purifier. Wherein, the water purifier falls into the parallelly connected scheme of main vice two RO filter cores, and main RO filter core flux is big, and vice RO filter core flux is little, stops to make water a period after the machine, starts main RO filter core and accomplishes pure water bubble membrane function, and the waste water that the bubble membrane produced filters through vice RO filter core again and carries out recycle, produces waste water when realizing the bubble membrane less, promotes machine water efficiency. And the machine is after shutting down for a long time, and the user next water receiving can not go out the condition emergence that has high concentration TDS.
In one embodiment, the water inlet end of the preposed composite filter element is connected with a tap water pipeline and is provided with a pressure reducing valve.
In one embodiment, a TDS sensor is arranged between the water outlet end of the preposed composite filter element and the booster pump.
In one embodiment of the present invention,
the forward direction of the first check valve is the direction from the water outlet end of the booster pump to the water inlet end of the auxiliary RO filter element;
the forward direction of the second check valve is from the wastewater outlet of the main RO filter element to the water inlet end of the auxiliary RO filter element;
the forward direction of the third check valve is from the pure water outlet of the main RO filter element to the water inlet end of the post-filter element;
the forward direction of the fourth check valve is from the pure water outlet of the auxiliary RO filter element to the water inlet end of the post-positioned filter element;
the forward direction is the direction in which the first check valve, the second check valve, the third check valve and the fourth check valve allow water to flow.
In one embodiment, the pure water outlet of the main RO filter element is connected to one end of a third check valve, the other end of the third check valve is connected to one end of the second electromagnetic valve, and the other end of the second electromagnetic valve is connected to the water inlet end of the post filter element.
In one embodiment, the pure water outlet of the main RO filter element is connected to one end of the second electromagnetic valve, the other end of the second electromagnetic valve is connected to one end of the third check valve, and the other end of the third check valve is connected to the water inlet end of the post filter element.
In one embodiment, the pure water outlet of the auxiliary RO filter element is connected to one end of a fourth check valve, the other end of the fourth check valve is connected to one end of the third electromagnetic valve, and the other end of the third electromagnetic valve is connected to the water inlet end of the post-filter element.
In one embodiment, the pure water outlet of the auxiliary RO filter element is connected to one end of the third electromagnetic valve, the other end of the third electromagnetic valve is connected to one end of the fourth check valve, and the other end of the fourth check valve is connected to the water inlet end of the post-filter element.
According to a second aspect of the embodiments of the present disclosure, there is provided a control method of a water purifier, applied to the above-mentioned water purifier, the method including:
when the water outlet of the water purifier is detected to be opened, entering a water making mode, controlling the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened, and closing the fourth electromagnetic valve;
and when the water intake of the user is not detected after the preset time length is exceeded, entering a pure water bubble film mode, controlling to close the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve, and opening the fourth electromagnetic valve.
In one embodiment, further comprising:
and when the time for entering the pure water bubble film mode reaches the set bubble film cycle time, closing the fourth electromagnetic valve.
According to a third aspect of the embodiments of the present disclosure, there is provided a control apparatus of a water purifier, applied to the above-described water purifier, the apparatus including:
the first control module is used for entering a water making mode when detecting that a water outlet of the water purifier is opened, controlling the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened, and closing the fourth electromagnetic valve;
and the second control module is used for entering a pure water bubble film mode when the water intake of a user is not detected after the preset time length is exceeded, controlling the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be closed, and opening the fourth electromagnetic valve.
In one embodiment, the second control module is further configured to close the fourth electromagnetic valve after the time for entering the pure water bubble film mode is detected to reach the set bubble film cycle time.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic view illustrating a structure of a water purifier according to an exemplary embodiment.
Fig. 2 is a schematic structural view of a water purifier shown according to an exemplary embodiment.
Fig. 3 is a schematic structural view of a water purifier shown according to an exemplary embodiment.
Fig. 4 is a schematic structural view of a water purifier shown according to an exemplary embodiment.
Fig. 5 is a schematic structural view of a water purifier shown according to an exemplary embodiment.
Fig. 6 is a flowchart illustrating a control method of a water purifier according to an exemplary embodiment.
Fig. 7 is a flowchart illustrating a control method of a water purifier according to an exemplary embodiment.
Fig. 8 is a block diagram illustrating a control apparatus of a water purifier according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a schematic structural view illustrating a water purifier according to an exemplary embodiment, as shown in fig. 1, including:
the water inlet end a of the front composite filter element 10 is connected with an external water source, the water outlet end b of the front composite filter element 10 is connected with the water inlet end of the booster pump 11, the water outlet end of the booster pump 11 is connected with the water inlet end c of the auxiliary reverse osmosis RO filter element 13 through the first check valve 12, and the water outlet end of the booster pump 11 is also connected with the water inlet end f of the main RO filter element 15 through the first electromagnetic valve 14. Wherein the primary RO cartridge flux is greater than the secondary RO cartridge 13 flux.
Illustratively, the front composite cartridge 10 may comprise a front PPC cartridge.
That is, in the present disclosure, the main RO filter element has a large flux, the auxiliary RO filter element 13 has a small flux, and the amount of wastewater discharged from the main RO filter element is larger than the amount of wastewater discharged from the auxiliary RO filter element 13.
Illustratively, the forward direction of the first check valve 12 is the direction from the water outlet end of the booster pump 11 to the water inlet end c of the auxiliary RO filter element 13; the forward direction is the direction in which the first check valve 12 allows water flow.
The waste water outlet g of the main RO filter element is connected with the water inlet end c of the auxiliary RO filter element 13 through a second check valve 16.
Illustratively, the forward direction of the second check valve 16 is from the wastewater outlet g of the main RO filter element to the water inlet c of the auxiliary RO filter element 13; the forward direction is the direction in which the second check valve 16 allows water flow.
The pure water outlet h of the main RO filter element is connected with the water inlet end m of the post-filter element 17; a third check valve 18 and a second electromagnetic valve 19 are also arranged between the pure water outlet h of the main RO filter element and the water inlet end m of the post-filter element 17.
Illustratively, the forward direction of the third check valve 18 is from the pure water outlet h of the main RO filter element to the water inlet end m of the post-filter element 17; the forward direction of the third check valve 18 is the direction in which the third check valve 18 allows water flow.
In one implementation, as shown in fig. 1, the pure water outlet h of the main RO filter element is connected to one end of a third check valve 18, the other end of the third check valve 18 is connected to one end of a second electromagnetic valve 19, and the other end of the second electromagnetic valve 19 is connected to the water inlet end m of the post-filter element 17. That is, the connection order at this time is: a pure water outlet h of the main RO filter element, a third check valve 18, a second electromagnetic valve 19 and a water inlet end m of the post-filter element 17.
In another implementation manner, as shown in fig. 2, the pure water outlet h of the main RO filter element is connected with one end of a second electromagnetic valve 19, the other end of the second electromagnetic valve 19 is connected with one end of a third check valve 18, and the other end of the third check valve 18 is connected with the water inlet end m of the post-filter element 17. The connection order at this time is: a pure water outlet h of the main RO filter element, a second electromagnetic valve 19, a third check valve 18 and a water inlet end m of the post-filter element 17.
A pure water outlet e of the auxiliary RO filter element 13 is connected with a water inlet end m of the post-filter element 17; a third electromagnetic valve 110 and a fourth check valve 111 are also arranged between the pure water outlet e of the auxiliary RO filter element 13 and the water inlet end m of the post-filter element 17; the pure water outlet e of the sub-RO filter element 13 is also connected to the water inlet f of the main RO filter element through a fourth solenoid valve 112.
Illustratively, the forward direction of the fourth check valve 111 is the direction from the pure water outlet e of the sub-RO cartridge 13 to the water inlet end m of the post-filter cartridge 17; the forward direction of the fourth check valve 111 is the direction in which the fourth check valve 111 allows the water flow.
In one implementation, as shown in fig. 1, the pure water outlet e of the sub-RO filter element 13 is connected to one end of the third electromagnetic valve 110, the other end of the third electromagnetic valve 110 is connected to one end of the fourth check valve 111, and the other end of the fourth check valve 111 is connected to the water inlet end m of the post-filter element 17. The connection order at this time is: a pure water outlet e of the auxiliary RO filter element 13, a third electromagnetic valve 110, a fourth check valve 111 and a water inlet end m of the post-filter element 17.
In another implementation manner, as shown in fig. 3, the pure water outlet e of the sub-RO filter element 13 is connected to one end of a fourth check valve 111, the other end of the fourth check valve 111 is connected to one end of a third electromagnetic valve 110, and the other end of the third electromagnetic valve 110 is connected to the water inlet end m of the post-filter element 17. The connection order at this time is: a pure water outlet e of the auxiliary RO filter element 13, a fourth check valve 111, a third electromagnetic valve 110 and a water inlet end m of the post-filter element 17.
The waste water outlet d of the auxiliary RO filter element 13 is connected with the waste water outlet of the water purifier through a waste water electromagnetic valve 113;
the pure water outlet n of the post-filter element 17 is connected with the water outlet of the water purifier.
As an example, the water purifier shown in fig. 1 has two operation states:
when the water outlet of the water purifier is detected to be opened, the water production mode is entered, the first electromagnetic valve 14, the second electromagnetic valve 19 and the third electromagnetic valve 110 are controlled to be opened, and the fourth electromagnetic valve 112 is closed;
specifically, the water outlet of the water purifier is connected to a faucet, and the external water source is tap water. A user opens the water faucet, starts the first electromagnetic valve 14 to open, opens the second electromagnetic valve 19, opens the third electromagnetic valve 110, closes the fourth electromagnetic valve 112, and then tap water enters the preposed filter element to be filtered after passing through the pressure reducing valve 114 to remove large-particle impurities such as silt and the like and residual chlorine and the like; the water after primary filtration is discharged from the preposed filter element and pressurized by a booster pump 11, one path of the pressurized water enters the main RO filter element through a first electromagnetic valve 14, the other path of the pressurized water enters the auxiliary RO filter element 13 through a first check valve 12, most metal ions are filtered by the membranes of the main RO filter element and the auxiliary RO filter element 13, and one path of the filtered pure water enters a postposition filter element 17 through a third check valve 18 and a second electromagnetic valve 19; the other path enters the post-filter element 17 through the fourth check valve 111 and the third electromagnetic valve 110, and enters the faucet after passing through the post-filter element 17 for drinking.
The wastewater generated by the filtration of the main RO filter element is connected with a second check valve 16 and enters the auxiliary RO filter element 13, and is mixed with the primary filtered water for secondary filtration; and the waste water generated by filtering the water by the auxiliary RO filter element 13 is discharged to a waste water outlet of the water purifier through a waste water valve.
When the water intake of the user is not detected after the preset time period, the pure water film soaking mode is entered, the first electromagnetic valve 14, the second electromagnetic valve 19 and the third electromagnetic valve 110 are controlled to be closed, and the fourth electromagnetic valve 112 is opened.
When the pure water bubble membrane function is needed, at the moment, the first electromagnetic valve 14 is closed, the second electromagnetic valve 19 is closed, the third electromagnetic valve 110 is closed, the fourth electromagnetic valve 112 is opened, primary filtered water from the booster pump 11 only enters the auxiliary RO filter element 13, and enters the main RO filter element through the fourth electromagnetic valve 112 after being filtered by the auxiliary RO filter element 13, meanwhile, pre-membrane wastewater from the main RO filter element is replaced is connected with the second check valve 16 and enters the auxiliary RO filter element 13, and then enters the auxiliary RO filter element 13 for circular filtration after being mixed with the primary filtered water. High concentration waste water before the RO membrane is replaced by the pure water completely this moment, and the pure water environment of low concentration is all arranged in to RO diaphragm front and back end, and the user next water receiving can not receive the water of high concentration TDS.
Further, when it is detected that the time for entering the pure water bubble film mode reaches the set bubble film cycle time, the fourth electromagnetic valve 112 is closed.
Specifically, after the set bubble membrane cycle time T has elapsed, the fourth solenoid valve 112 is closed, and the bubble membrane process is stopped.
When water is not made at water purifier a period, through opening pure water bubble membrane function, replace the raw water before the RO membrane, prevent that the dense water before this RO membrane from passing the RO membrane and permeating the pure water end, avoid appearing the higher condition of first cup water TDS, improve user experience, and the dense water before the RO membrane can enter into the end c of intaking of vice RO filter core 13, carry out loop filter, this kind of structure, when avoiding the user next water receiving can not receive the water of high concentration TDS, because only vice RO filter core 13 can discharge a small amount of waste water, the utilization efficiency of whole water resource has been promoted greatly.
The present disclosure provides a water purifier, including: the water inlet end of the front composite filter element is connected with an external water source, the water outlet end of the front composite filter element is connected with the water inlet end of the booster pump, the water outlet end of the booster pump is connected with the water inlet end of the auxiliary reverse osmosis RO filter element through a first check valve, and the water outlet end of the booster pump is also connected with the water inlet end of the main RO filter element through a first electromagnetic valve; the flux of the main RO filter element is larger than that of the auxiliary RO filter element, and a wastewater outlet of the main RO filter element is connected with a water inlet end of the auxiliary RO filter element through a second check valve; the pure water outlet of the main RO filter element is connected with the water inlet end of the post-filter element; a third check valve and a second electromagnetic valve are also arranged between the pure water outlet of the main RO filter element and the water inlet end of the post-positioned filter element; a pure water outlet of the auxiliary RO filter element is connected with a water inlet end of the post-positioned filter element; a third electromagnetic valve and a fourth check valve are also arranged between the pure water outlet of the auxiliary RO filter element and the water inlet end of the post-positioned filter element; the pure water outlet of the auxiliary RO filter element is also connected with the water inlet end of the main RO filter element through a fourth electromagnetic valve; a wastewater outlet of the auxiliary RO filter element is connected with a wastewater outlet of the water purifier through a wastewater electromagnetic valve; the pure water outlet of the post-positioned filter element is connected with the water outlet of the water purifier. Wherein, the water purifier falls into the parallelly connected scheme of main vice two RO filter cores, and main RO filter core flux is big, and vice RO filter core flux is little, stops to make water a period after the machine, starts main RO filter core and accomplishes pure water bubble membrane function, and the waste water that the bubble membrane produced filters through vice RO filter core again and carries out recycle, produces waste water when realizing the bubble membrane less, promotes machine water efficiency. And the machine is after shutting down for a long time, and the user next water receiving can not go out the condition emergence that has high concentration TDS.
In one embodiment, as shown in fig. 4, the water inlet end a of the front composite filter element 10 is connected with a tap water pipeline and is provided with a pressure reducing valve 114.
Illustratively, the pressure reducing valve 114 is used to stabilize the pressure of the tap water, so that the pressure of the tap water flowing from the water inlet pipeline to the pre-composite filter element 10 is constant, thereby avoiding the occurrence of overhigh water pressure of the tap water, which affects the operation of the pre-composite filter element 10.
In one embodiment, as shown in fig. 5, a TDS sensor 115 is disposed between the water outlet end b of the pre-composite filter element 10 and the booster pump 11.
By setting TDS sensor 115, the water purifier can determine the operating state of the pre-composite filter element 10 according to the detection result of TDS sensor 115.
The present disclosure also provides a control method of a water purifier, applied to any one of the above-described water purifiers, and fig. 6 is a flowchart illustrating a control method of a water purifier according to an exemplary embodiment. As shown in fig. 6, the method includes the following steps S101 to S103.
In step S101, when the water outlet of the water purifier is detected to be opened, the water purifier enters a water production mode, the first electromagnetic valve, the second electromagnetic valve, and the third electromagnetic valve are controlled to be opened, and the fourth electromagnetic valve is closed.
Specifically, the water outlet of the water purifier is connected to a faucet, and the external water source is tap water. A user opens the water faucet, starts the first electromagnetic valve 14 to open, opens the second electromagnetic valve 19, opens the third electromagnetic valve 110, closes the fourth electromagnetic valve 112, and then tap water enters the preposed filter element to be filtered after passing through the pressure reducing valve 114 to remove large-particle impurities such as silt and the like and residual chlorine and the like; the water after primary filtration is discharged from the preposed filter element and pressurized by a booster pump 11, one path of the pressurized water enters the main RO filter element through a first electromagnetic valve 14, the other path of the pressurized water enters the auxiliary RO filter element 13 through a first check valve 12, most metal ions are filtered by the membranes of the main RO filter element and the auxiliary RO filter element 13, and one path of the filtered pure water enters a postposition filter element 17 through a third check valve 18 and a second electromagnetic valve 19; the other path enters the post-filter element 17 through the fourth check valve 111 and the third electromagnetic valve 110, and enters the faucet after passing through the post-filter element 17 for drinking.
The wastewater generated by the filtration of the main RO filter element is connected with a second check valve 16 and enters the auxiliary RO filter element 13, and is mixed with the primary filtered water for secondary filtration; and the waste water generated by filtering the water by the auxiliary RO filter element 13 is discharged to a waste water outlet of the water purifier through a waste water valve.
In step S102, when it is not detected that a user takes water over a preset time period, the pure water film soaking mode is entered, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are controlled to be closed, and the fourth electromagnetic valve is opened.
When the pure water bubble membrane function is needed, at the moment, the first electromagnetic valve 14 is closed, the second electromagnetic valve 19 is closed, the third electromagnetic valve 110 is closed, the fourth electromagnetic valve 112 is opened, primary filtered water from the booster pump 11 only enters the auxiliary RO filter element 13, and enters the main RO filter element through the fourth electromagnetic valve 112 after being filtered by the auxiliary RO filter element 13, meanwhile, pre-membrane wastewater from the main RO filter element is replaced is connected with the second check valve 16 and enters the auxiliary RO filter element 13, and then enters the auxiliary RO filter element 13 for circular filtration after being mixed with the primary filtered water. High concentration waste water before the RO membrane is replaced by the pure water completely this moment, and the pure water environment of low concentration is all arranged in to RO diaphragm front and back end, and the user next water receiving can not receive the water of high concentration TDS.
Here, the preset time period may be about half an hour, and when the user does not take water for about more than the preset time period, the raw water particles in front of the RO membrane of the RO cartridge may permeate through the RO membrane to the pure water side, and then the pure water bubble membrane mode may be performed.
In one embodiment, as shown in fig. 7, the method further includes S103:
in step S103, when it is detected that the time for entering the pure water bubble film mode reaches the set bubble film cycle time, the fourth electromagnetic valve is closed.
Specifically, after the set bubble membrane cycle time T has elapsed, the fourth solenoid valve 112 is closed, and the bubble membrane process is stopped.
The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods.
Fig. 8 is a block diagram illustrating a control apparatus of a water purifier, which may be implemented as a part or all of an electronic device by software, hardware, or a combination of both, according to an exemplary embodiment.
As shown in fig. 8, the control device of the water purifier includes:
the first control module 201 is configured to enter a water production mode when detecting that a water outlet of the water purifier is opened, control to start the first electromagnetic valve, the second electromagnetic valve, and the third electromagnetic valve to open, and close the fourth electromagnetic valve;
and the second control module 202 is configured to enter a pure water bubble film mode when water intake of a user is not detected for more than a preset time period, control to close the first electromagnetic valve, open the second electromagnetic valve and open the third electromagnetic valve, and open the fourth electromagnetic valve.
In one embodiment, the second control module 202 is further configured to close the fourth solenoid valve after detecting that the time for entering the pure water bubble film mode reaches the set bubble film cycle time.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. A water purifier, characterized by comprising:
the water inlet end of the front composite filter element is connected with an external water source, the water outlet end of the front composite filter element is connected with the water inlet end of the booster pump, the water outlet end of the booster pump is connected with the water inlet end of the auxiliary reverse osmosis RO filter element through a first check valve, and the water outlet end of the booster pump is also connected with the water inlet end of the main RO filter element through a first electromagnetic valve; wherein the primary RO cartridge flux is greater than the secondary RO cartridge flux;
the waste water outlet of the main RO filter element is connected with the water inlet end of the auxiliary RO filter element through a second check valve;
the pure water outlet of the main RO filter element is connected with the water inlet end of the post-filter element; a third check valve and a second electromagnetic valve are also arranged between the pure water outlet of the main RO filter element and the water inlet end of the post-filter element;
the pure water outlet of the auxiliary RO filter element is connected with the water inlet end of the post-positioned filter element; a third electromagnetic valve and a fourth check valve are also arranged between the pure water outlet of the auxiliary RO filter element and the water inlet end of the post-positioned filter element; the pure water outlet of the auxiliary RO filter element is also connected with the water inlet end of the main RO filter element through a fourth electromagnetic valve;
the waste water outlet of the auxiliary RO filter element is connected with the waste water outlet of the water purifier through a waste water electromagnetic valve;
and a pure water outlet of the rear filter element is connected with a water outlet of the water purifier.
2. The water purifier as recited in claim 1, wherein the water inlet end of the pre-composite filter element is connected with a tap water pipeline and is provided with a pressure reducing valve.
3. The water purifier of claim 1, wherein a TDS sensor is disposed between the water outlet end of the pre-composite filter element and the booster pump.
4. The water purifier according to claim 1,
the forward direction of the first check valve is the direction from the water outlet end of the booster pump to the water inlet end of the auxiliary RO filter element;
the forward direction of the second check valve is from the wastewater outlet of the main RO filter element to the water inlet end of the auxiliary RO filter element;
the forward direction of the third check valve is from the pure water outlet of the main RO filter element to the water inlet end of the post-filter element;
the forward direction of the fourth check valve is from the pure water outlet of the auxiliary RO filter element to the water inlet end of the post-positioned filter element;
the forward direction is the direction in which the first check valve, the second check valve, the third check valve and the fourth check valve allow water to flow.
5. The water purifier of claim 1, wherein the pure water outlet of the main RO filter element is connected to one end of a third check valve, the other end of the third check valve is connected to one end of the second solenoid valve, and the other end of the second solenoid valve is connected to the water inlet end of the post-filter element.
6. The water purifier of claim 1, wherein the pure water outlet of the main RO filter element is connected to one end of the second solenoid valve, the other end of the second solenoid valve is connected to one end of the third check valve, and the other end of the third check valve is connected to the water inlet end of the post-filter element.
7. The water purifier of claim 1, wherein the pure water outlet of the sub-RO filter element is connected to one end of a fourth check valve, the other end of the fourth check valve is connected to one end of the third electromagnetic valve, and the other end of the third electromagnetic valve is connected to the water inlet end of the post-filter element.
8. The water purifier of claim 1, wherein the pure water outlet of the sub-RO filter element is connected to one end of the third solenoid valve, the other end of the third solenoid valve is connected to one end of the fourth check valve, and the other end of the fourth check valve is connected to the water inlet end of the post-filter element.
9. A control method of a water purifier, characterized by being applied to the water purifier of any one of claims 1 to 8, the method comprising:
when the water outlet of the water purifier is detected to be opened, entering a water making mode, controlling the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened, and closing the fourth electromagnetic valve;
and when the water intake of the user is not detected after the preset time length is exceeded, entering a pure water bubble film mode, controlling to close the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve, and opening the fourth electromagnetic valve.
10. The method of claim 9, further comprising:
and when the time for entering the pure water bubble film mode reaches the set bubble film cycle time, closing the fourth electromagnetic valve.
11. A control device for a water purifier, which is applied to the water purifier according to any one of claims 1 to 8, the device comprising:
the first control module is used for entering a water making mode when detecting that a water outlet of the water purifier is opened, controlling the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened, and closing the fourth electromagnetic valve;
and the second control module is used for entering a pure water bubble film mode when the water intake of a user is not detected after the preset time length is exceeded, controlling the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be closed, and opening the fourth electromagnetic valve.
12. The apparatus of claim 11, wherein the second control module is further configured to close the fourth solenoid valve after detecting that the time for entering the pure water bubble film mode reaches a set bubble film cycle time.
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| CN202111049931.7A CN113880274A (en) | 2021-09-08 | 2021-09-08 | Water purifier and control method and device thereof |
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