CN115180730A

CN115180730A - Water purification control method of water purification equipment, water purification system and water purification equipment

Info

Publication number: CN115180730A
Application number: CN202210910867.5A
Authority: CN
Inventors: 柯映充; 孙天厚; 郑跃东
Original assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Current assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-10-14

Abstract

The invention discloses a water purification control method of a water purification device, a water purification system and the water purification device, wherein the water purification control method comprises the following steps: when the water outlet function of the water purifying equipment is started, the control valve component is controlled to enable the first filtering device and the second filtering device to be connected in series, and the water purifying equipment carries out secondary purification on tap water flowing into the water inlet; determining the water outlet time of the water purifying equipment; when the water outlet time reaches the first preset time, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in parallel, and the water purifying equipment purifies the tap water flowing into the water inlet for the first time. Therefore, by the water purification control method, the water quality of the water discharged in the whole process of the water purification equipment can be ensured, the water quality of the water discharged when a user just starts to take water from the water purification equipment can be ensured, and the old water of the water purification equipment is avoided, so that the problem of the first cup of water of the water purification equipment is solved.

Description

Water purification control method of water purification equipment, water purification system and water purification equipment

Technical Field

The invention relates to the field of water purification equipment, in particular to a water purification control method of water purification equipment, the water purification equipment, a computer readable storage medium and a water purification system of the water purification equipment.

Background

In the related art, a filtering device is arranged in the existing water purifying equipment, but ions with high concentration at a concentrated water end of the filtering device can permeate to a pure water end of the filtering device due to a forward osmosis principle when the water purifying equipment is standby, so that the Total Dissolved Solids (TDS) concentration of part of water is high when a user just starts to take water from the water purifying equipment, namely the problem of so-called "first cup water" in the industry, and the water purifying equipment is easy to discharge stale water.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a water purification control method for a water purification apparatus, which can ensure the quality of the effluent water of the whole process of the water purification apparatus, and prevent the water purification apparatus from producing old water, thereby solving the problem of the first cup of water of the water purification apparatus.

The invention further provides a water purifying device.

The invention further proposes a computer-readable storage medium.

The invention further provides a water purification system of the water purification equipment.

According to the water purification control method of the water purification apparatus of the present invention, the water purification apparatus includes a water inlet, a water outlet, a first filtering device, a second filtering device, and a control valve assembly, the first filtering device, the second filtering device, and the control valve assembly are all disposed between the water inlet and the water outlet, and the control valve assembly is used for controlling a communication relationship between the first filtering device and the second filtering device, the method includes:

when the water outlet function of the water purifying equipment is started, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in series, and the water purifying equipment carries out secondary purification on tap water flowing into the water inlet;

determining the water outlet time of the water purifying equipment;

when the water outlet time reaches a first preset time, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in parallel, and the water purifying equipment purifies tap water flowing into the water inlet for the first time.

According to the water purification control method of the water purification equipment, when the water outlet function of the water purification equipment is started, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in series, the water purification equipment performs secondary purification on tap water flowing into the water inlet and determines the water outlet time of the water purification equipment, when the water outlet time reaches a first preset time, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in parallel, the water purification equipment performs primary purification on the tap water flowing into the water inlet, wherein when water is taken from the water purification equipment, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in series, the filtering device positioned on the downstream side can filter the tap water flowing out from the filtering device positioned on the upstream side, the water quality in the whole process of the water purification equipment can be ensured, the water quality when a user just starts to take water from the water purification equipment can be ensured, and the problem that the water is not shown in the water purification equipment is solved.

In some examples of the invention, before the water-out time reaches a first preset time, the method further comprises:

if the water purifying equipment closes the water outlet function, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be kept in series connection, and a waste water valve corresponding to the second filtering device is controlled to be opened until the water outlet time reaches the first preset time.

In some examples of the invention, after the water-out time reaches a first preset time, the method further comprises:

and if the water outlet function of the water purifying equipment is closed, directly controlling the water purifying equipment to stand by.

In some examples of the present invention, the control valve assembly includes a first solenoid valve, a second solenoid valve, and a third solenoid valve, an inlet of the first solenoid valve is connected to the water inlet, an outlet of the first solenoid valve is connected to an inlet of the first filtering device, an inlet of the second solenoid valve is connected to the water inlet, an outlet of the second solenoid valve is connected to an inlet of the second filtering device, an inlet of the third solenoid valve is connected to an outlet of the first filtering device, an outlet of the third solenoid valve and an outlet of the second filtering device are respectively connected to the water outlet, and an outlet of the first filtering device is connected to an inlet of the second filtering device, wherein the control valve assembly is controlled so that the first filtering device and the second filtering device are connected in series, and includes:

and controlling the first electromagnetic valve to be opened, and controlling the second electromagnetic valve and the third electromagnetic valve to be closed.

In some examples of the invention, controlling the control valve assembly to connect the first filter device in parallel with the second filter device comprises:

and controlling the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened.

In some examples of the present invention, the control valve assembly includes a first solenoid valve, a second solenoid valve, and a third solenoid valve, the first solenoid valve is disposed at the water inlet, an outlet of the first solenoid valve is communicated to an inlet of the first filtering device and an inlet of the second solenoid valve, respectively, an outlet of the second solenoid valve is communicated to an inlet of the second filtering device, an inlet of the third solenoid valve is communicated to an outlet of the first filtering device, an outlet of the third solenoid valve and an outlet of the second filtering device are communicated to the water outlet, respectively, and an outlet of the first filtering device is communicated to an inlet of the second filtering device, wherein controlling the control valve assembly to connect the first filtering device and the second filtering device in series includes:

The water purifying device comprises a memory, a processor and a water purifying control program of the water purifying device, wherein the water purifying control program of the water purifying device is stored in the memory and can run on the processor, and when the processor executes the water purifying control program of the water purifying device, the water purifying control method of the water purifying device is realized.

According to the water purifying equipment, when the processor executes a water purifying control program of the water purifying equipment, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in series when water is taken from the water purifying equipment, the filtering device positioned on the downstream side can filter tap water flowing out of the filtering device positioned on the upstream side, the effluent quality of the whole process of the water purifying equipment can be ensured, the effluent quality when a user just starts to take water from the water purifying equipment can be ensured, and therefore the problem of first cup water of the water purifying equipment is solved.

According to the computer-readable storage medium of the present invention, a water purification control program of a water purification apparatus is stored thereon, which when executed by a processor implements the water purification control method of the water purification apparatus described above.

According to the computer-readable storage medium of the invention, when the water purification control program of the water purification device is executed by the processor, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in series when water starts to be taken from the water purification device, so that the filtering device positioned at the downstream side can filter tap water flowing out of the filtering device positioned at the upstream side, the effluent quality of the whole process of the water purification device can be ensured, the effluent quality when a user just starts to take water from the water purification device can be ensured, and the problem of first cup of water of the water purification device can be solved.

According to the water purification system of the water purification apparatus of the present invention, the water purification apparatus includes a water inlet and a water outlet, the water purification system includes:

the first filtering device and the second filtering device are arranged between the water inlet and the water outlet;

a control valve assembly for controlling the communication between the first and second filtration devices;

the control part is used for controlling the control valve component to enable the first filtering device to be connected with the second filtering device in series when the water outlet function of the water purifying device is started, secondarily purifying tap water flowing into the water inlet by the water purifying device, determining the water outlet time of the water purifying device, and controlling the control valve component to enable the first filtering device to be connected with the second filtering device in parallel when the water outlet time reaches a first preset time, wherein the tap water flowing into the water inlet is primarily purified by the water purifying device.

According to the water purification system of the water purification apparatus of the present invention, when water starts to be taken from the water purification apparatus, the control unit controls the control valve assembly so that the first filter device and the second filter device are connected in series, and the filter device located on the downstream side can filter tap water flowing out of the filter device located on the upstream side, thereby ensuring the quality of outlet water in the whole process of the water purification apparatus, and ensuring the quality of outlet water when a user starts to take water from the water purification apparatus, thereby solving the problem of the first cup of water in the water purification apparatus.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a first embodiment of a water purification system according to an embodiment of the invention;

FIG. 2 is a schematic diagram of a second embodiment of a water purification system according to an embodiment of the invention;

fig. 3 is a flowchart of a water purification control method according to an embodiment of the present invention;

FIG. 4 is a block diagram of a processor, memory, communication interface, communication bus in accordance with one embodiment of the present invention.

Reference numerals:

a water purification system 100;

a first filter device 10; a second filter device 20;

a first electromagnetic valve 30; a second electromagnetic valve 31; a third electromagnetic valve 32; a first check valve 33; a second check valve 34; a third check valve 35; a high voltage switch 36; a first wastewater solenoid valve 37; a second waste water solenoid valve 38; a first TDS probe 39; a second TDS probe 391;

a third filter device 40; a booster pump 50;

a water inlet 200; a water outlet 300; a waste water port 400;

a processor 1201; a communication interface 1202; a memory 1203; a communication bus 1204.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

The following describes a water purification control method of a water purification apparatus according to an embodiment of the present invention with reference to fig. 1 to 3, where the water purification apparatus may be a water purifier, but the present invention is not limited thereto, and the water purification apparatus may also be other apparatuses having a water purification function. The water purifying device comprises a water inlet 200, a water outlet 300, a first filtering device 10, a second filtering device 20 and a control valve component, wherein the first filtering device 10 and the second filtering device 20 can be reverse osmosis filter cores, the first filtering device 10, the second filtering device 20 and the control valve component are arranged between the water inlet 200 and the water outlet 300, and the control valve component is used for controlling the communication relation between the first filtering device 10 and the second filtering device 20, so that the water purifying device can purify tap water flowing into the water inlet 200 for the second time when the first filtering device 10 and the second filtering device 20 are connected in series, or the water purifying device can purify the tap water flowing into the water inlet 200 for the first time when the first filtering device 10 and the second filtering device 20 are connected in parallel. It should be noted that, the control valve assembly is used to control the first filtering device 10 and the second filtering device 20 to be connected in series or in parallel, the control valve assembly can control the first filtering device 10 and the second filtering device 20 to be flexibly switched between the series connection mode and the parallel connection mode, when the control valve assembly controls the first filtering device 10 and the second filtering device 20 to be connected in series, the water purifying apparatus performs secondary purification on the tap water flowing into the water inlet 200, so as to achieve an effect of flowing out ultrapure water from the water purifying apparatus, and when the control valve assembly controls the first filtering device 10 and the second filtering device 20 to be connected in parallel, the water purifying apparatus performs primary purification on the tap water flowing into the water inlet 200, so as to achieve an effect of flowing out pure water from the water purifying apparatus.

It should be noted that, the existing water purification apparatus only purifies the tap water once, when the water purification apparatus produces water, the TDS concentration at the concentrated water end of the filtering device is generally 3 times that at the pure water end of the filtering device, the concentrated water end of the filtering device refers to the side of the filtering membrane in the filtering device close to the water inlet of the filtering device, and the pure water end of the filtering device refers to the side of the filtering membrane in the filtering device close to the water outlet of the filtering device. When the water purifying equipment is in standby, high-concentration ions at the concentrated water end of the filtering device quickly permeate the pure water end due to the forward osmosis principle, so that when a user just starts to take water, the TDS concentration of part of the water is high, the desalination rate of the part of the water is only 40% -50%, the water quality of the first cup of water flowing out of the water purifying equipment is poor, and the first cup of water flowing out of the water purifying equipment even has the scaling phenomenon in a region with poor tap water quality.

As shown in fig. 1 to 3, a water purification control method of a water purification apparatus according to an embodiment of the present invention includes the steps of:

and S10, when the water outlet function of the water purifying equipment is started, controlling the control valve component to enable the first filtering device and the second filtering device to be connected in series, and secondarily purifying tap water flowing into the water inlet by the water purifying equipment.

It should be noted that the water outlet of the water purifying apparatus may be communicated with a faucet, when the water purifying apparatus starts the water outlet function, for example, when the faucet is opened to take water, the water purifying apparatus works, the control portion of the water purifying apparatus controls the control valve assembly to connect the first filtering device and the second filtering device in series, and the water purifying apparatus performs secondary purification on tap water flowing into the water inlet.

And S20, determining the water outlet time of the water purifying equipment.

It should be noted that, the time from the water outlet function of the water purifying apparatus being turned on to the water outlet function of the water purifying apparatus being turned off is the water outlet time T, for example: the time from the time that the water tap is opened to the time that the water tap is closed to take water is the water outlet time T.

And S30, when the water outlet time reaches a first preset time, controlling the control valve assembly to enable the first filtering device and the second filtering device to be connected in parallel, and performing primary purification on tap water flowing into the water inlet by using the water purifying equipment.

It should be noted that the first preset time is T1, when the water outlet time T of the water purification apparatus reaches the first preset time T1, the control portion of the water purification apparatus controls the control valve assembly to connect the first filtering device and the second filtering device in parallel, and the water purification apparatus performs primary purification on tap water flowing into the water inlet.

When the water outlet function of the water purifying equipment is started, namely water is taken through the water purifying equipment, tap water flows in from the water inlet, the control part of the water purifying equipment firstly controls the control valve component to enable the first filtering device and the second filtering device to be connected in series, the first filtering device is arranged on the upstream side of the second filtering device in the flowing direction of the tap water for example, filtered water generated by the first filtering device is filtered by the second filtering device, the second filtering device is used for filtering water flowing out of the first filtering device again, then the water flows out of the water outlet, the water outlet quality when a user just starts to take water from the water purifying equipment is ensured, and when the water outlet time T reaches a first preset time T1, namely T1 is equal to T, the control part of the water purifying equipment controls the control valve component to enable the first filtering device and the second filtering device to be connected in parallel, the water purifying equipment is used for purifying tap water flowing into the water inlet for one time, and on the basis that the water outlet of the water purifying equipment is ensured, the water outlet flow of the water purifying equipment can reach the maximum, so that the desalination rate of the whole water quality of the water outlet process of the water purifying equipment is more than 90%, and the problem of the first cup of the water is completely solved. When the water outlet time does not reach the first preset time, the control part controls the control valve component to enable the first filtering device and the second filtering device to be connected in series, and the water purifying equipment carries out secondary purification on tap water flowing into the water inlet until the water outlet time of the water purifying equipment reaches the first preset time.

It should be noted that, the first filtering device and the second filtering device are connected in parallel to form two reverse osmosis filter elements which are connected in parallel to jointly output purified water, which is equivalent to that tap water is only subjected to reverse osmosis filtration once, and the desalination rate of the output water is above 90%, the first filtering device and the second filtering device are connected in series to form two reverse osmosis filter elements which are connected in series, the purified water of the first filtering device enters the second filtering device to be refiltered, which is equivalent to that the tap water is subjected to reverse osmosis filtration twice, and the desalination rate of the output water is above 99%.

Therefore, according to the water purification control method of the water purification device, when the water outlet function of the water purification device is started, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in series, the water purification device performs secondary purification on tap water flowing into the water inlet and determines the water outlet time of the water purification device, when the water outlet time reaches a first preset time, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in parallel, the water purification device performs primary purification on the tap water flowing into the water inlet, wherein when water is taken from the water purification device, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in series, the filter device located on the downstream side can filter the tap water flowing out from the filter device located on the upstream side, the water outlet in the whole process of the water purification device can be ensured, the water outlet when a user just starts to take water from the water purification device can be ensured, the water outlet of the water purification device can be avoided, and the problem of first cup of water in the water purification device can be solved.

In some embodiments of the present invention, before the water outlet time reaches the first preset time, the water purification control method further includes: if the water purifying equipment closes the water outlet function, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be kept in series connection, and a waste water valve corresponding to the second filtering device is controlled to be opened until the water outlet time reaches a first preset time. The water purifying device is provided with a waste water port, a second waste water outlet of the second filtering device is communicated with an inlet of a second waste water electromagnetic valve (namely a waste water valve), an outlet of the second waste water electromagnetic valve is communicated with the waste water port, after the water purifying device opens the water outlet function, before the water outlet time of the water purifying device reaches a first preset time, if the water purifying device closes the water outlet function, a control part of the water purifying device controls a control valve component to enable the first filtering device and the second filtering device to be connected in series, and controls the second waste water electromagnetic valve corresponding to the second filtering device to be opened, at the moment, water flowing into the second filtering device from the first filtering device flows out of the waste water port through the second waste water electromagnetic valve until the water outlet time T reaches the first preset time T1, so that the first cup of water in the first filtering device is completely discharged, and at the moment, the water purifying device directly enters a standby state.

It should be noted that the discharge time of the first cup of water generated by the first filtering device is a first preset time T1, and the first preset time T1 is set before the water purifying apparatus leaves the factory, for example: the first preset time T1 is stored in a control part of the water purifying equipment, the first preset time T1 is obtained according to laboratory test verification, the first preset time T1 of different types and different filtering devices is different, for example, 800 gallons of water purifying machines, and the first preset time T1 is set between 15S and 20S. The water outlet is communicated with a water tap and a pipeline machine for explanation, water flowing out of the water outlet of the water purifying device can flow out of the water tap and can be supplemented into the pipeline machine, the water flowing out of the water outlet of the water purifying device flows out of the water tap for explanation, the water outlet time T of the water tap indicates that the first cup of water produced by the first filtering device is not completely discharged when T is less than T1, and in order to prevent the problem that the concentrated water which is not discharged in the first filtering device stays in the first cup of water produced by the water inlet of the second filtering device, the water purifying device immediately controls the control valve assembly to enable the first filtering device and the second filtering device to be connected in series and controls the waste water valve corresponding to the second filtering device to be opened until the accumulated water outlet time of the water purifying device reaches the first preset time. When T is larger than or equal to T1, the first cup of water produced by the first filtering device is completely discharged, the water staying at the water inlet of the second filtering device is the pure water produced by the first filtering device, and the water purifying equipment can directly enter the standby device.

In some embodiments of the present invention, after the water outlet time reaches the first preset time, the water purification control method further includes: if the water purifying equipment closes the water outlet function, the water purifying equipment is directly controlled to be in standby. When the water outlet function of the water purifying equipment is started, namely water is taken through the water purifying equipment, tap water flows in from the water inlet, the control part of the water purifying equipment firstly controls the control valve component to enable the first filtering device and the second filtering device to be connected in series, the first filtering device is arranged on the upstream side of the second filtering device in the flowing direction of the tap water for example, filtered water generated by the first filtering device is filtered by the second filtering device, the second filtering device is used for filtering water flowing out of the first filtering device again, then the water flows out of the water outlet, the water outlet quality when a user just starts to take water from the water purifying equipment is ensured, and after the water outlet time T reaches a first preset time T1, namely T1 is less than or equal to T, if the water outlet function of the water purifying equipment is closed, the control part of the water purifying equipment directly controls the standby of the water purifying equipment, so that the problem of first cup of water can be solved, and electric energy waste is prevented.

Specifically, when the control part of the water purifying equipment receives a water taking instruction of a faucet or a touch instruction of a high-pressure switch, the control part discharges first cup water for a first preset time T1 according to the set first filtering device, and when the accumulated water discharging time T of the water purifying equipment is smaller than the first preset time T1, the control part controls the control valve component to enable the first filtering device and the second filtering device to be connected in series, and the water purifying equipment starts water production. When the accumulated water outlet time T of the water purifying equipment is greater than or equal to the first preset time T1, the control part controls the control valve component to enable the first filtering device and the second filtering device to be connected in parallel, the water purifying equipment starts water production, finally purified water is discharged from the water outlet faucet or enters a water storage tank of a pipeline machine, and the desalination rate of the purified water in the whole process is over 90 percent.

When the accumulated water outlet time T is less than the first preset time T1, if the water purifying equipment closes the water outlet function, the control part controls the control valve component to enable the first filtering device and the second filtering device to be kept in series connection, and controls the waste water valve corresponding to the second filtering device to be opened, so that water in the first filtering device is discharged from the waste water valve corresponding to the second filtering device until the accumulated water outlet time T reaches the first preset time T1, and the first cup of water in the first filtering device is completely discharged.

According to a first embodiment of the water purifying apparatus of the embodiment of the present invention, as shown in fig. 1, the control valve assembly includes a first solenoid valve, a second solenoid valve and a third solenoid valve, an inlet of the first solenoid valve is communicated to the water inlet, an outlet of the first solenoid valve is communicated to an inlet of the first filtering device, an inlet of the second solenoid valve is communicated to the water inlet, an outlet of the second solenoid valve is communicated to an inlet of the second filtering device, an inlet of the third solenoid valve is communicated to an outlet of the first filtering device, an outlet of the third solenoid valve and an outlet of the second filtering device are respectively communicated to the water outlet, and an outlet of the first filtering device is communicated to an inlet of the second filtering device. Furthermore, the inlet of the first electromagnetic valve is communicated with the water inlet through a pipeline, the outlet of the first electromagnetic valve is communicated with the inlet of the first filtering device through a pipeline, the inlet of the second electromagnetic valve is communicated with the water inlet through a pipeline, the outlet of the second electromagnetic valve is communicated with the inlet of the second filtering device through a pipeline, the inlet of the third electromagnetic valve is communicated with the outlet of the first filtering device through a pipeline, the outlet of the third electromagnetic valve and the outlet of the second filtering device are communicated with the water outlet through pipelines, and the outlet of the first filtering device is communicated with the inlet of the second filtering device through a pipeline. Wherein controlling the control valve assembly to connect the first filtering device in series with the second filtering device comprises: and controlling the first electromagnetic valve to be opened, and controlling the second electromagnetic valve and the third electromagnetic valve to be closed. It should be noted that the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are all in communication connection with a control part of the water purification apparatus, and the control part can control the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened or closed. When the first electromagnetic valve is opened and the second electromagnetic valve and the third electromagnetic valve are both closed, the first filtering device is connected with the second filtering device in series.

Further, controlling the control valve assembly to connect the first filtering device in parallel with the second filtering device includes: and controlling the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened. When the control part controls the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened, the parallel connection effect of the first filtering device and the second filtering device is achieved.

According to a second embodiment of the water purifying apparatus of the embodiment of the present invention, as shown in fig. 2, the control valve assembly includes a first solenoid valve, a second solenoid valve and a third solenoid valve, the first solenoid valve is disposed at the water inlet, an outlet of the first solenoid valve is respectively communicated to an inlet of the first filtering device and an inlet of the second solenoid valve, an outlet of the second solenoid valve is communicated to an inlet of the second filtering device, an inlet of the third solenoid valve is communicated to an outlet of the first filtering device, an outlet of the third solenoid valve and an outlet of the second filtering device are respectively communicated to the water outlet, and an outlet of the first filtering device is communicated to an inlet of the second filtering device. Furthermore, the inlet of the first electromagnetic valve is communicated with the water inlet through a pipeline, the outlet of the first electromagnetic valve is communicated with the inlet of the first filtering device and the inlet of the second electromagnetic valve through pipelines respectively, the outlet of the second electromagnetic valve is communicated with the inlet of the second filtering device through a pipeline, the inlet of the third electromagnetic valve is communicated with the outlet of the first filtering device through a pipeline, the outlet of the third electromagnetic valve and the outlet of the second filtering device are communicated with the water outlet through pipelines respectively, and the outlet of the first filtering device is communicated to the inlet of the second filtering device through a pipeline. Wherein controlling the control valve assembly to connect the first filtering device in series with the second filtering device comprises: and controlling the first electromagnetic valve to be opened, and controlling the second electromagnetic valve and the third electromagnetic valve to be closed. It should be noted that the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are all in communication connection with a control part of the water purification apparatus, and the control part can control the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened or closed. When the first electromagnetic valve is opened and the second electromagnetic valve and the third electromagnetic valve are both closed, the first filtering device and the second filtering device are connected in series.

Further, controlling the control valve assembly to connect the first filtering device in parallel with the second filtering device includes: and controlling the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened. When the controller controls the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve to be opened, the parallel connection effect of the first filtering device and the second filtering device is achieved.

In order to achieve the above-described embodiments, the present invention proposes a computer-readable storage medium having stored thereon a water purification control program of a water purification apparatus, which when executed by a processor, implements a water purification control method of the water purification apparatus of the above-described embodiments.

In order to implement the above embodiment, as shown in fig. 4, the water purification apparatus provided by the present invention includes a memory 1203, a processor 1201, and a water purification control program of the water purification apparatus stored in the memory 1203 and operable on the processor 1201, and when the processor 1201 executes the water purification control program of the water purification apparatus, the water purification control method of the water purification apparatus of the above embodiment is implemented. When the water purification control program is executed by the processor 1201, when water starts to be taken from the water purification apparatus, the control valve assembly is controlled to connect the first filter device and the second filter device in series, and the filter device positioned on the downstream side can filter tap water flowing out of the filter device positioned on the upstream side, so that the water quality of the water discharged from the water purification apparatus in the whole process can be ensured, and the water quality of water discharged from the water purification apparatus when a user just starts to take water from the water purification apparatus can be ensured, thereby solving the problem of first cup of water of the water purification apparatus.

As shown in fig. 4, the water purification apparatus comprises at least one processor 1201, at least one communication interface 1202, at least one memory 1203 and at least one communication bus 1204; in the embodiment of the present invention, the number of the processor 1201, the communication interface 1202, the memory 1203 and the communication bus 1204 is at least one, and the processor 1201, the communication interface 1202 and the memory 1203 complete communication with each other through the communication bus 1204.

The Memory 1203 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like. The memory 1203 is used for storing a program, and the processor 1201 executes the program after receiving the execution instruction, so as to implement the steps of the water purification control method described in the above embodiment.

The processor 1201 may be an integrated circuit chip having signal processing capabilities. The processor 1201 may be a general-purpose processor including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be 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 device, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general-purpose processor may be a microprocessor, or the processor 1201 may be any conventional processor 1201 or the like.

It should be noted that the logic and/or steps shown in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

As shown in fig. 1 and 2, in a water purification system 100 of a water purification apparatus (the water purification apparatus in the above embodiment) according to an embodiment of the present invention, the water purification system 100 is disposed in the water purification apparatus, and the water purification apparatus includes a water inlet 200 and a water outlet 300, and the water outlet 300 is connected to a water outlet device (e.g., a faucet and/or a pipeline machine in the above embodiment). The water purification system 100 includes: a first filter device 10, a second filter device 20, a control valve assembly and a control section. The first filtering device 10 and the second filtering device 20 can be reverse osmosis filter cores, the first filtering device 10 and the second filtering device 20 are arranged between the water inlet 200 and the water outlet 300, and the control valve assembly is used for controlling the communication relation between the first filtering device 10 and the second filtering device 20. The control part is in communication connection with the control valve assembly, the control part is used for controlling the control valve assembly to enable the first filtering device 10 and the second filtering device 20 to be connected in series when the water outlet function of the water purifying equipment is started, the water purifying equipment is used for secondarily purifying tap water flowing into the water inlet 200 and determining the water outlet time T of the water purifying equipment, and when the water outlet time reaches the first preset time T1, the control part controls the control valve assembly to enable the first filtering device 10 and the second filtering device 20 to be connected in parallel, and the water purifying equipment is used for primarily purifying the tap water flowing into the water inlet 200. It should be noted that the control valve assembly is used for controlling the first filtering device 10 and the second filtering device 20 to be connected in series or in parallel, the control valve assembly can control the first filtering device 10 and the second filtering device 20 to be flexibly switched between a series mode and a parallel mode, when the control valve assembly controls the first filtering device 10 and the second filtering device 20 to be connected in series, the water purifying system 100 performs secondary purification on tap water flowing into the water inlet 200, and when the control valve assembly controls the first filtering device 10 and the second filtering device 20 to be connected in parallel, the water purifying system 100 performs primary purification on tap water flowing into the water inlet 200.

Specifically, the control unit is in communication connection with the control valve assembly, when the water outlet function of the water purification apparatus is turned on, the control unit of the water purification apparatus first controls the control valve assembly to connect the first filter device 10 and the second filter device 20 in series, and in the flow direction of the tap water, taking the example that the first filter device 10 is disposed on the upstream side of the second filter device 20, the filtered water generated by the first filter device 10 is filtered by the second filter device 20, and the second filter device 20 re-filters the water flowing out from the first filter device 10, and then the water flows out from the water outlet 300, thereby ensuring the quality of the outlet water when a user just starts to take water from the water purification apparatus. And when the accumulated water outlet time T of the water purifying equipment reaches the first preset time T1, namely T1 is equal to T, the control part of the water purifying equipment controls the control valve component to enable the first filtering device 10 and the second filtering device 20 to be connected in parallel, the water purifying equipment purifies the tap water flowing into the water inlet 200 for the first time, at the moment, on the basis of ensuring the water outlet quality of the water purifying equipment, the water outlet flow of the water purifying equipment can be maximized, so that the desalination rate of the outlet water in the whole water outlet process of the water purifying equipment is over 90 percent, the water purifying equipment is prevented from producing stale water, and the problem of the first cup of water is thoroughly solved.

Therefore, according to the water purification system 100 of the water purification apparatus of the present invention, when the water purification apparatus starts the water outlet function, the control part controls the control valve assembly to connect the first filtering device 10 and the second filtering device 20 in series, the water purification apparatus secondarily purifies the tap water flowing into the water inlet 200 and determines the water outlet time of the water purification apparatus, and when the water outlet time reaches the first preset time, the control part controls the control valve assembly to connect the first filtering device 10 and the second filtering device 20 in parallel, and the water purification apparatus primarily purifies the tap water flowing into the water inlet 200, wherein, when water starts to be taken from the water purification apparatus, the control part controls the control valve assembly to connect the first filtering device 10 and the second filtering device 20 in series, the filtering device located at the downstream side can filter the tap water flowing out of the filtering device located at the upstream side, the water quality of the water purification apparatus in the whole process can be ensured, the water quality when a user starts to take water from the water outlet purification apparatus can be ensured, and the water outlet of the water purification apparatus can be prevented from being exposed, thereby solving the first cup water problem of the water purification apparatus.

In this application, when first filter equipment 10 and second filter equipment 20 are parallelly connected, the running water that flows into water inlet 200 flows into first filter equipment 10 and second filter equipment 20 respectively, the running water that flows out first filter equipment 10 and the running water that flows out second filter equipment 20 become pure water and flow to delivery port 300, the running water only passes through once filtration, water purification system 100 purifies the running water that flows into water inlet 200 once, water purification equipment's play water desalination is more than 90%, can control the parallelly connected mode work of first filter equipment 10 and second filter equipment 20 of valve module control in the better region of quality of water. When the first filtering device 10 and the second filtering device 20 are connected in series, the tap water flowing into the water inlet 200 flows into one of the first filtering device 10 and the second filtering device 20, and then the tap water after primary filtering flows into the other one of the first filtering device 10 and the second filtering device 20 for secondary filtering, which is equivalent to the fact that the tap water is filtered twice, the tap water after the secondary filtering is changed into ultrapure water and flows to the water outlet 300, the desalination rate of the outlet water is more than 99%, and the valve assembly can be controlled to control the serial connection mode work of the first filtering device 10 and the second filtering device 20 in regions with poor water quality.

Furthermore, the effluent desalinization rate of the series mode work of the first filtering device 10 and the second filtering device 20 is improved from 90% to 99% compared with that of the parallel mode work of the first filtering device 10 and the second filtering device 20, the range TDS of the effluent quality of the water purifying equipment is reduced from 5mg/L-100mg/L to 5mg/L-10mg/L, the effluent quality of the water purifying equipment is greatly improved, the effluent difference of different water qualities in different areas is reduced, a user can flexibly select the communication mode of the first filtering device 10 and the second filtering device 20 based on different water requirements, and the user satisfaction degree is improved.

In some embodiments of the present invention, before the water outlet time T reaches the first preset time T1, if the water purifying apparatus turns off the water outlet function, the control valve assembly is controlled to keep the first filtering device 10 and the second filtering device 20 in series, and the corresponding waste water valve of the second filtering device 20 is controlled to be opened until the water outlet time reaches the first preset time. After the water purifying apparatus starts the water outlet function, before the water outlet time of the water purifying apparatus reaches a first preset time, if the water purifying apparatus closes the water outlet function, the control part of the water purifying apparatus controls the control valve assembly to enable the first filtering device 10 and the second filtering device 20 to be connected in series, and controls the second wastewater solenoid valve 38 corresponding to the second filtering device 20 to be opened, at this time, the water flowing into the second filtering device 20 from the first filtering device 10 flows out of the waste water outlet 400 through the second wastewater solenoid valve 38 until the water outlet time T reaches a first preset time T1, so that the first cup of water in the first filtering device 10 is completely discharged, and at this time, the water purifying apparatus directly enters a standby state.

It should be noted that the discharge time of the first cup of water generated by the first filtering device 10 is a first preset time T1, and the first preset time T1 is set before the water purifying apparatus leaves the factory, for example: the first preset time T1 is stored in a control part of the water purifying equipment, the first preset time T1 is obtained according to laboratory test verification, the first preset time T1 of different types and different filtering devices is different, for example, 800 gallons of water purifying machines, and the first preset time T1 is set between 15S and 20S. To illustrate the case that the water outlet is communicated with a faucet and a pipeline machine, the water flowing out of the water outlet 300 of the water purification device can flow out of the faucet or can be supplemented into the pipeline machine, and to illustrate the case that the water flowing out of the water outlet 300 of the water purification device flows out of the faucet, the water outlet time T of the faucet indicates that the first cup of water produced by the first filtering device 10 is not completely discharged when T is less than T1, in order to prevent the problem that the concentrated water which is not discharged in the first filtering device 10 stays in the first cup of water produced by the water inlet of the second filtering device 20, the water purification device immediately controls the control valve assembly to enable the first filtering device 10 and the second filtering device 20 to be connected in series after the water outlet function of the water purification device is closed, and controls the waste water valve corresponding to the second filtering device 20 to be opened until the accumulated water outlet time of the water purification device reaches the first preset time. When T is larger than or equal to T1, the first cup of water produced by the first filtering device 10 is completely discharged, the water staying at the water inlet of the second filtering device 20 is the pure water prepared by the first filtering device 10, and at the moment, the water purifying equipment can directly enter the standby device.

In some embodiments of the present invention, after the water outlet time T of the water purifying apparatus reaches the first preset time T1, if the water purifying apparatus turns off the water outlet function, the water purifying apparatus is directly controlled to stand by. When the water outlet function of the water purifying device is turned on, that is, when water is taken through the water purifying device, tap water flows in from the water inlet 200, the control part of the water purifying device first controls the control valve assembly to enable the first filtering device 10 and the second filtering device 20 to be connected in series, and in the flowing direction of the tap water, the first filtering device 10 is arranged at the upstream side of the second filtering device 20 for illustration, filtered water generated by the first filtering device 10 is filtered by the second filtering device 20, the second filtering device 20 filters water flowing out from the first filtering device 10 again, and then the water flows out from the water outlet 300, so that the water outlet quality when a user just starts to take water from the water purifying device is ensured, and after the water outlet time T reaches the first preset time T1, that is, T1 is not more than T, if the water outlet function of the water purifying device is turned off, the control part of the water purifying device directly controls the water purifying standby device, and the arrangement can prevent electric energy waste while ensuring that the problem of the first cup of water is solved.

Specifically, when the control part of the water purifying apparatus receives a water getting instruction of the faucet or a touch instruction of the high-pressure switch, the control part discharges the first cup of water generated by the first filtering device 10 for a first preset time T1, and when the accumulated water discharging time T of the water purifying apparatus is less than the first preset time T1, the control part controls the control valve assembly to connect the first filtering device 10 and the second filtering device 20 in series, and the water purifying apparatus starts to produce water. When the accumulated water outlet time T of the water purifying equipment is more than or equal to the first preset time T1, the control part controls the control valve component to enable the first filtering device 10 and the second filtering device 20 to be connected in parallel, the water purifying equipment starts water production, finally purified water is discharged from the water outlet faucet or enters a water storage tank of the pipeline machine, and the desalination rate of the purified water in the whole process is more than 90%.

When the accumulated water outlet time T is less than the first preset time T1, if the water purifying equipment closes the water outlet function, the control part controls the control valve component to enable the first filtering device 10 and the second filtering device 20 to be connected in series, and controls the waste water valve corresponding to the second filtering device 20 to be opened, so that the water in the first filtering device 10 is discharged from the waste water valve corresponding to the second filtering device 20 until the accumulated water outlet time T reaches the first preset time T1, and the first cup of water in the first filtering device is completely discharged.

According to a first embodiment of the water purification system 100 of the embodiment of the present invention, as shown in fig. 1, the control valve assembly may include: a first solenoid valve 30, a second solenoid valve 31, a third solenoid valve 32, a first check valve 33 and a second check valve 34. An inlet of the first solenoid valve 30 is communicated with the water inlet 200, an outlet of the first solenoid valve 30 is communicated with an inlet of the first filtering device 10, an inlet of the second solenoid valve 31 is communicated with the water inlet 200, an outlet of the second solenoid valve 31 is communicated with an inlet of the second filtering device 20, an inlet of the third solenoid valve 32 is communicated with an outlet of the first filtering device 10, an outlet of the third solenoid valve 32 and an outlet of the second filtering device 20 are respectively communicated with the water outlet 300, and an outlet of the first filtering device 10 is communicated with an inlet of the second filtering device 20. Further, an inlet of the first electromagnetic valve 30 is communicated with the water inlet 200 through a pipeline, an outlet of the first electromagnetic valve 30 is communicated with an inlet of the first filtering device 10 through a pipeline, an inlet of the second electromagnetic valve 31 is communicated with the water inlet 200 through a pipeline, an outlet of the second electromagnetic valve 31 is communicated with an inlet of the second filtering device 20 through a pipeline, an inlet of the third electromagnetic valve 32 is communicated with an outlet of the first filtering device 10 through a pipeline, an outlet of the third electromagnetic valve 32 and an outlet of the second filtering device 20 are both communicated with the water outlet 300 through pipelines, and an outlet of the first filtering device 10 is communicated with an inlet of the second filtering device 20 through a pipeline.

Wherein the first filtering device 10 is connected in parallel with the second filtering device 20 when the first solenoid valve 30, the second solenoid valve 31 and the third solenoid valve 32 are all opened. When the first solenoid valve 30 is open and the second solenoid valve 31 and the third solenoid valve 32 are both closed, the first filtering device 10 is connected in series with the second filtering device 20. As shown in fig. 1, when the first electromagnetic valve 30, the second electromagnetic valve 31, and the third electromagnetic valve 32 are all opened, after tap water flows into the water purification system 100 from the water inlet 200, a part of the tap water flows into the first filtering device 10 through the first electromagnetic valve 30, the tap water filtered by the first filtering device 10 flows to the water outlet 300 through the third electromagnetic valve 32, another part of the tap water flows into the second filtering device 20 through the second electromagnetic valve 31, and the tap water filtered by the second filtering device 20 flows to the water outlet 300 through the outlet of the second filtering device 20. When the first solenoid valve 30 is opened and the second solenoid valve 31 and the third solenoid valve 32 are both closed, after tap water flows into the water purification system 100 from the water inlet 200, the tap water flows into the first filtering device 10 through the first solenoid valve 30, the tap water filtered by the first filtering device 10 flows into the second filtering device 20, and the water filtered by the second filtering device 20 flows to the water outlet 300 through the outlet of the second filtering device 20. Through setting up first solenoid valve 30, second solenoid valve 31 and third solenoid valve 32, can realize freely switching the technological effect that first filter equipment 10 and second filter equipment 20 establish ties or connect in parallel, can guarantee water purification system 100 working property to guarantee water purification unit's working property.

An inlet of the first check valve 33 is communicated with an outlet of the second solenoid valve 31, an outlet of the first check valve 33 is communicated with an inlet of the second filtering device 20, an inlet of the second check valve 34 is communicated with an outlet of the first filtering device 10, and an outlet of the second check valve 34 is communicated with an inlet of the second filtering device 20. Further, an inlet of the first check valve 33 is communicated with an outlet of the second solenoid valve 31 through a pipeline, an outlet of the first check valve 33 is communicated with an inlet of the second filtering device 20 through a pipeline, the first check valve 33 is connected between an outlet of the second solenoid valve 31 and an inlet of the second filtering device 20, an inlet of the second check valve 34 is communicated with an outlet of the first filtering device 10 through a pipeline, an outlet of the second check valve 34 is communicated with an inlet of the second filtering device 20 through a pipeline, and the second check valve 34 is connected between an outlet of the first filtering device 10 and an inlet of the second filtering device 20. Wherein, the outlet of the first check valve 33 is communicated with the outlet of the second check valve 34 and the inlet of the second filter device 20 through the pipeline, and by arranging the first check valve 33, after water flows out from the outlet of the first filter device 10, the water can be prevented from flowing back to the inlet of the first filter device 10 through the second electromagnetic valve 31, and the water flow of the water purifying equipment is prevented from being influenced. In addition, by providing the second check valve 34, the water between the second check valve 34 and the second filter device 20 can be prevented from flowing back to the inlet of the first filter device 10, and the water quality of the water outlet of the water purifying apparatus can be prevented from being affected by the mixing of the inlet water of the second filter device 20 and the outlet water of the first filter device 10.

Further, as shown in fig. 1, when the first electromagnetic valve 30 and the third electromagnetic valve 32 are opened and the second electromagnetic valve 31 is closed, the first filtering device 10 performs the filtering operation, and it should be noted that after the tap water flows into the water purification system 100 from the water inlet 200, the tap water flows into the first filtering device 10 through the first electromagnetic valve 30, and the tap water filtered by the first filtering device 10 becomes pure water and flows to the water outlet 300 through the third electromagnetic valve 32. When the first electromagnetic valve 30 and the third electromagnetic valve 32 are closed and the second electromagnetic valve 31 is opened, the second filtering device 20 operates, and it should be noted that after the tap water flows into the water purification system 100 from the water inlet 200, the tap water flows into the second filtering device 20 through the second electromagnetic valve 31, and the tap water filtered by the second filtering device 20 becomes pure water and flows to the water outlet 300 through the outlet of the second filtering device 20. Wherein, the water purification system 100 can also purify the tap water flowing into the water inlet 200 through the first filtering device 10 and the second filtering device 20 alternately, specifically, by controlling the open/close states of the first electromagnetic valve 30, the second electromagnetic valve 31 and the third electromagnetic valve 32, the first filtering device 10 and the second filtering device 20 are controlled to purify the tap water flowing into the water inlet 200 alternately, under the condition that the first filtering device 10 and the second filtering device 20 do not work simultaneously, the water demand of the user can be met, and because the first filtering device 10 and the second filtering device 20 have service lives, the tap water flowing into the water inlet 200 needs to be replaced after long-term use, and by controlling the first filtering device 10 and the second filtering device 20 to purify the tap water flowing into the water inlet 200 alternately, the service time of the first filtering device 10 and the second filtering device 20 can be prolonged, thereby prolonging the service lives of the first filtering device 10 and the second filtering device 20.

Further, as shown in fig. 1, the water purification system 100 may further include: the third filtering device 40 and the booster pump 50, the third filtering device 40 may be configured as a front-rear composite filter element, a first inlet of the third filtering device 40 is communicated with the water inlet 200, a first outlet of the third filtering device 40 is communicated with an inlet of the booster pump 50, an outlet of the booster pump 50 is communicated with an inlet of the first electromagnetic valve 30 and an inlet of the second electromagnetic valve 31, respectively, a second inlet of the third filtering device 40 is communicated with an outlet of the second filtering device 20 and an outlet of the third electromagnetic valve 32, respectively, and a second outlet of the third filtering device 40 is communicated to the water outlet 300.

Specifically, a first inlet of the third filtering device 40 is communicated with the water inlet 200 through a pipeline, a first outlet of the third filtering device 40 is communicated with an inlet of the booster pump 50 through a pipeline, an outlet of the booster pump 50 is respectively communicated with an inlet of the first electromagnetic valve 30 and an inlet of the second electromagnetic valve 31 through a pipeline, a second inlet of the third filtering device 40 is respectively communicated with an outlet of the second filtering device 20 and an outlet of the third electromagnetic valve 32 through a pipeline, and a second outlet of the third filtering device 40 is communicated with the water outlet 300 through a pipeline. After the tap water flows into the water purification system 100 from the water inlet 200, the water flows into the third filtering device 40 from the first inlet of the third filtering device 40, and then flows into the booster pump 50 from the first outlet of the third filtering device 40, the booster pump 50 boosts the water, the water flows to the inlet of the first electromagnetic valve 30 and the inlet of the second electromagnetic valve 31 through the booster pump 50, the water flows into the third filtering device 40 from the second inlet of the third filtering device 40 after flowing out from the outlet of the second filtering device 20 and/or the outlet of the third electromagnetic valve 32, and then flows to the water outlet 300 from the second outlet of the third filtering device 40. Through setting up third filter equipment 40, can increase the purification number of times to water, can promote water purification unit's play water quality of water to can promote water purification unit and use experience, and, through setting up booster pump 50, can guarantee water pressure in water purification system 100, be favorable to rivers to go out water purification system 100, thereby be favorable to rivers to go out water purification unit.

Further, as shown in fig. 1, the water purification system 100 may further include: and an inlet of the third check valve 35 is communicated with a second outlet of the third filtering device 40, an outlet of the third check valve 35 is communicated with the water outlet 300, further, an inlet of the third check valve 35 is communicated with a second outlet of the third filtering device 40 through a pipeline, and an outlet of the third check valve 35 is communicated with the water outlet 300 through a pipeline. By providing the third check valve 35, it is possible to prevent water from flowing back into the water purification system 100 from the second outlet of the third filtering device 40.

Further, as shown in fig. 1, the water purification system 100 may further include: the high-pressure switch 36 (the high-pressure switch in the above embodiment), the high-pressure switch 36 may be in communication connection with the control portion, the control portion is in communication connection with the first solenoid valve 30, the second solenoid valve 31, and the third solenoid valve 32, the high-pressure switch 36 is disposed in a pipeline between an outlet of the third check valve 35 and the water outlet 300, when the water outlet 300 is closed, the water purifier does not discharge water to the outside, the high-pressure switch 36 detects that the water pressure in the pipeline between the outlet of the third check valve 35 and the water outlet 300 increases, the high-pressure switch 36 transmits a pressure signal to the control portion, the control portion may control the first solenoid valve 30, the second solenoid valve 31, and the third solenoid valve 32 to be closed, and the control portion controls the water purifier to stop. When the water outlet 300 is opened, the water purifying apparatus discharges water to the outside at this time, the high-pressure switch 36 detects that the water pressure in the pipeline between the outlet of the third check valve 35 and the water outlet 300 is reduced, the high-pressure switch 36 transmits a pressure signal to the control part, the control part controls the starting of the water purifying apparatus, and the control part controls the opening states of the first electromagnetic valve 30, the second electromagnetic valve 31 and the third electromagnetic valve 32, so that the first filtering device 10 and the second filtering device 20 are connected in series or in parallel.

Further, as shown in fig. 1, the water purification system 100 may further include: the water purifying apparatus comprises a first wastewater solenoid valve 37 and a second wastewater solenoid valve 38, the water purifying apparatus has a wastewater port 400, a first wastewater outlet of the first filtering device 10 is communicated with an inlet of the first wastewater solenoid valve 37, an outlet of the first wastewater solenoid valve 37 is communicated with the wastewater port 400, a second wastewater outlet of the second filtering device 20 is communicated with an inlet of the second wastewater solenoid valve 38, and an outlet of the second wastewater solenoid valve 38 is communicated with the wastewater port 400. After the first wastewater solenoid valve 37 is opened, wastewater in the first filtering device 10 flows through the first wastewater outlet, the first wastewater solenoid valve 37 and the wastewater port 400 in sequence, so that the effect of discharging wastewater in the first filtering device 10 is realized. After the second wastewater solenoid valve 38 is opened, wastewater in the second filtering device 20 flows through the second wastewater outlet, the second wastewater solenoid valve 38 and the wastewater outlet 400 in sequence, so that the wastewater in the second filtering device 20 is discharged. When the water purifying device is in a low-temperature environment below 0 ℃, the freezing volume expansion phenomenon can occur in the water inside the first filtering device 10, the inside of the second filtering device 20 and the water path (namely, the pipeline), and by arranging the first wastewater solenoid valve 37 and the second wastewater solenoid valve 38, the water can be discharged from the first wastewater solenoid valve 37 and the second wastewater solenoid valve 38, so that the problem of frost crack and water leakage caused by freezing inside the first filtering device 10, the inside of the second filtering device 20 and the water path can be effectively prevented. Further, the first waste water solenoid valve 37 and the second waste water solenoid valve 38 may be in communication connection with a control portion, and the control portion may control the first waste water solenoid valve 37 and the second waste water solenoid valve 38 to be opened or closed.

Further, as shown in fig. 1, the water purification system 100 may further include: first TDS probe 39 and second TDS probe 391, the pipeline between the first outlet of third filter equipment 40 and the import of booster pump 50 is provided with first TDS probe 39, and the pipeline between the export of third check valve 35 and delivery port 300 is provided with second TDS probe 391. First TDS probe 39, second TDS probe 391 all are connected with the control part, and first TDS probe 39 is arranged in detecting the ion concentration in the water that flows out from the first export of third filter equipment 40, also can understand, and first TDS probe is used for detecting the running water quality of water information that flows into the water inlet, and first TDS probe 39 detects out and transmits ion concentration information in the water to the control part after the ion concentration in the water that flows out from the first export of third filter equipment 40, and the control part can control the display panel of water purification unit and show ion concentration information in the water.

The second TDS probe 391 is used for detecting the ion concentration in the water flowing out from the outlet of the third check valve 35, the second TDS probe 391 detects the ion concentration in the water flowing out from the outlet of the third check valve 35 and then transmits the information of the ion concentration in the water to the control part, and the control part can control the display panel of the water purifying device to display the information of the ion concentration in the water flowing out from the outlet of the third check valve 35.

According to a second embodiment of the water purification system 100 of the embodiment of the present invention, as shown in fig. 2, the control valve assembly includes a first solenoid valve 30, a second solenoid valve 31, a third solenoid valve 32, a first check valve 33, and a second check valve 34. The first electromagnetic valve 30 is arranged at the water inlet 200, the outlet of the first electromagnetic valve 30 is respectively communicated to the inlet of the first filtering device 10 and the inlet of the second electromagnetic valve 31, the outlet of the second electromagnetic valve 31 is communicated with the inlet of the second filtering device 20, the inlet of the third electromagnetic valve 32 is communicated with the outlet of the first filtering device 10, the outlet of the third electromagnetic valve 32 and the outlet of the second filtering device 20 are respectively communicated to the water outlet 300, and the outlet of the first filtering device 10 is communicated to the inlet of the second filtering device 20. Further, an inlet of the first solenoid valve 30 is communicated with the water inlet 200 through a pipeline, an outlet of the first solenoid valve 30 is communicated with an inlet of the first filtering device 10 and an inlet of the second solenoid valve 31 through a pipeline, an outlet of the second solenoid valve 31 is communicated with an inlet of the second filtering device 20 through a pipeline, an inlet of the third solenoid valve 32 is communicated with an outlet of the first filtering device 10 through a pipeline, an outlet of the third solenoid valve 32 and an outlet of the second filtering device 20 are communicated with the water outlet 300 through a pipeline, and an outlet of the first filtering device 10 is communicated with an inlet of the second filtering device 20 through a pipeline. Wherein the first filtering device 10 is connected in parallel with the second filtering device 20 when the first solenoid valve 30, the second solenoid valve 31 and the third solenoid valve 32 are all opened. When the first solenoid valve 30 is open and the second solenoid valve 31 and the third solenoid valve 32 are both closed, the first filtering device 10 is connected in series with the second filtering device 20.

As shown in fig. 2, when the first solenoid valve 30, the second solenoid valve 31, and the third solenoid valve 32 are all opened, after tap water flows into the water purification system 100 from the water inlet 200, the tap water flows through the first solenoid valve 30, a part of the tap water flowing through the first solenoid valve 30 flows into the first filter device 10, the tap water filtered by the first filter device 10 flows to the water outlet 300 through the third solenoid valve 32, another part of the tap water flowing through the first solenoid valve 30 flows into the second filter device 20 through the second solenoid valve 31, and the tap water filtered by the second filter device 20 flows to the water outlet 300 through the outlet of the second filter device 20. When the first solenoid valve 30 is opened and the second solenoid valve 31 and the third solenoid valve 32 are both closed, after tap water flows into the water purification system 100 from the water inlet 200, the tap water flows into the first filtering device 10 through the first solenoid valve 30, the tap water filtered by the first filtering device 10 flows into the second filtering device 20, and the water filtered by the second filtering device 20 flows to the water outlet 300 through the outlet of the second filtering device 20. Through setting up first solenoid valve 30, second solenoid valve 31 and third solenoid valve 32, can realize freely switching first filter equipment 10 and second filter equipment 20 series connection or parallelly connected technological effect, can guarantee water purification system 100 working property to guarantee water purification unit's working property.

An inlet of the first check valve 33 is communicated with an outlet of the second solenoid valve 31, an outlet of the first check valve 33 is communicated with an inlet of the second filtering device 20, an inlet of the second check valve 34 is communicated with an outlet of the first filtering device 10, and an outlet of the second check valve 34 is communicated with an inlet of the second filtering device 20. Further, an inlet of the first check valve 33 is communicated with an outlet of the second solenoid valve 31 through a pipeline, an outlet of the first check valve 33 is communicated with an inlet of the second filtering device 20 through a pipeline, the first check valve 33 is connected between an outlet of the second solenoid valve 31 and an inlet of the second filtering device 20, an inlet of the second check valve 34 is communicated with an outlet of the first filtering device 10 through a pipeline, an outlet of the second check valve 34 is communicated with an inlet of the second filtering device 20 through a pipeline, and the second check valve 34 is connected between an outlet of the first filtering device 10 and an inlet of the second filtering device 20. Wherein, the outlet of the first check valve 33 is communicated with the inlet of the second filter device 20 through the pipeline between the outlet of the second check valve 34 and the outlet of the pipeline, and by arranging the first check valve 33, after water flows out from the outlet of the first filter device 10, the water can be prevented from flowing back to the inlet of the first filter device 10 through the second electromagnetic valve 31, and the water flow of the water purifying equipment is prevented from being influenced. In addition, by providing the second check valve 34, the water between the second check valve 34 and the second filtering device 20 can be prevented from flowing back to the inlet of the first filtering device 10, and the water quality of the water outlet of the water purifying apparatus can be prevented from being influenced by the mixing of the inlet water of the second filtering device 20 and the outlet water of the first filtering device 10.

Further, as shown in fig. 2, when the first electromagnetic valve 30 and the third electromagnetic valve 32 are opened and the second electromagnetic valve 31 is closed, the first filtering device 10 performs the filtering operation, and it should be noted that after the tap water flows into the water purifying system 100 from the water inlet 200, the tap water flows into the first filtering device 10 through the first electromagnetic valve 30, and the tap water filtered by the first filtering device 10 flows to the water outlet 300 through the third electromagnetic valve 32. When the first electromagnetic valve 30 and the second electromagnetic valve 31 are opened and the third electromagnetic valve 32 is closed, the second filtering device 20 operates, and it should be noted that after tap water flows into the water purification system 100 from the water inlet 200, the tap water flows into the second electromagnetic valve 31 through the first electromagnetic valve 30, the tap water flows into the second filtering device 20 through the second electromagnetic valve 31, and the tap water filtered by the second filtering device 20 flows into the water outlet 300 through the outlet of the second filtering device 20. Wherein, the water purifying system 100 can also perform a primary purification of the tap water flowing into the water inlet 200 by the first filtering device 10 and the second filtering device 20 alternately. Specifically, by controlling the open/close states of the first, second and third

electromagnetic valves

30, 31 and 32, the first and

second filtering devices

10 and 20 are controlled to alternately purify the tap water flowing into the water inlet 200, and in the case that the first and

second filtering devices

10 and 20 do not simultaneously operate, the water demand of the user can be satisfied, and since the first and

second filtering devices

10 and 20 have service lives and need to be replaced after long-term use, the service lives of the first and

second filtering devices

10 and 20 can be prolonged by controlling the first and

second filtering devices

10 and 20 to alternately purify the tap water flowing into the water inlet 200, thereby prolonging the service lives of the first and

second filtering devices

10 and 20.

Further, as shown in fig. 2, the water purification system 100 may further include: the third filtering device 40 and the booster pump 50, the third filtering device 40 may be configured as a front-rear composite filter element, a first inlet of the third filtering device 40 is communicated with an outlet of the first electromagnetic valve 30, a first outlet of the third filtering device 40 is communicated with an inlet of the booster pump 50, an outlet of the booster pump 50 is respectively communicated with an inlet of the first filtering device 10 and an inlet of the second electromagnetic valve 31, a second inlet of the third filtering device 40 is respectively communicated with an outlet of the second filtering device 20 and an outlet of the third electromagnetic valve 32, and a second outlet of the third filtering device 40 is communicated to the water outlet 300.

Specifically, a first inlet of the third filtering device 40 is communicated with an outlet of the first solenoid valve 30 through a pipeline, a first outlet of the third filtering device 40 is communicated with an inlet of the booster pump 50 through a pipeline, an outlet of the booster pump 50 is communicated with an inlet of the first filtering device 10 and an inlet of the second solenoid valve 31 through pipelines, respectively, a second inlet of the third filtering device 40 is communicated with an outlet of the second filtering device 20 and an outlet of the third solenoid valve 32 through pipelines, respectively, and a second outlet of the third filtering device 40 is communicated with the water outlet 300 through a pipeline. After the tap water flows into the water purification system 100 from the water inlet 200, the water first flows through the first solenoid valve 30, then flows into the third filtering device 40 from the first inlet of the third filtering device 40, then flows into the booster pump 50 from the first outlet of the third filtering device 40, the booster pump 50 boosts the pressure of the water, the water flows to the inlet of the first filtering device 10 and the inlet of the second solenoid valve 31 through the booster pump 50, flows into the third filtering device 40 from the second inlet of the third filtering device 40 after flowing out from the outlet of the second filtering device 20 and/or the outlet of the third solenoid valve 32, and then flows to the water outlet 300 from the second outlet of the third filtering device 40. Through setting up third filter equipment 40, can increase the purification number of times to water, can promote water purification unit's play water quality of water to can promote water purification unit and use experience, and, through setting up booster pump 50, can guarantee water pressure in water purification system 100, be favorable to rivers to go out water purification system 100, thereby be favorable to rivers to go out water purification unit.

Further, as shown in fig. 2, the water purification system 100 may further include: and an inlet of the third check valve 35 is communicated with a second outlet of the third filtering device 40, an outlet of the third check valve 35 is communicated with the water outlet 300, further, an inlet of the third check valve 35 is communicated with a second outlet of the third filtering device 40 through a pipeline, and an outlet of the third check valve 35 is communicated with the water outlet 300 through a pipeline. By providing the third check valve 35, it is possible to prevent water from flowing back into the water purification system 100 from the second outlet of the third filtering device 40.

Further, as shown in fig. 2, the water purification system 100 may further include: high-pressure switch 36, high-pressure switch 36 can be connected with the control part communication, the control part and first solenoid valve 30, second solenoid valve 31 and third solenoid valve 32 all communication connection, high-pressure switch 36 sets up the pipeline between the export of third check valve 35 and delivery port 300, when delivery port 300 is closed, water purification unit does not play water to the outside this moment, high-pressure switch 36 detects the interior water pressure of pipeline between the export of third check valve 35 and delivery port 300 and increases, high-pressure switch 36 transmits pressure signal for the control part, the control part can control first solenoid valve 30, second solenoid valve 31 and third solenoid valve 32 all to close, control water purification unit stops. When the water outlet 300 is opened, the water purifying apparatus discharges water to the outside at this time, the high-pressure switch 36 detects that the water pressure in the pipeline between the outlet of the third check valve 35 and the water outlet 300 is reduced, the high-pressure switch 36 transmits a pressure signal to the control part, the control part controls the starting of the water purifying apparatus, and the control part controls the opening states of the first electromagnetic valve 30, the second electromagnetic valve 31 and the third electromagnetic valve 32, so that the first filtering device 10 and the second filtering device 20 are connected in series or in parallel.

Further, as shown in fig. 2, the water purification system 100 may further include: a first wastewater solenoid valve 37 and a second wastewater solenoid valve 38, the water purifying apparatus has a wastewater port 400, a first wastewater outlet of the first filtering device 10 is communicated with an inlet of the first wastewater solenoid valve 37, an outlet of the first wastewater solenoid valve 37 is communicated with the wastewater port 400, a second wastewater outlet of the second filtering device 20 is communicated with an inlet of the second wastewater solenoid valve 38, and an outlet of the second wastewater solenoid valve 38 is communicated with the wastewater port 400. After the first wastewater solenoid valve 37 is opened, wastewater in the first filtering device 10 flows through the first wastewater outlet, the first wastewater solenoid valve 37 and the wastewater port 400 in sequence, so that the effect of discharging wastewater in the first filtering device 10 is realized. After the second wastewater solenoid valve 38 is opened, wastewater in the second filtering device 20 flows through the second wastewater outlet, the second wastewater solenoid valve 38 and the wastewater port 400 in sequence, so that the effect of discharging wastewater in the second filtering device 20 is achieved. When the water purifying device is in a low-temperature environment below 0 ℃, the freezing volume expansion phenomenon can occur in the water inside the first filtering device 10, the inside of the second filtering device 20 and the water path (namely, the pipeline), and by arranging the first wastewater solenoid valve 37 and the second wastewater solenoid valve 38, the water can be discharged from the first wastewater solenoid valve 37 and the second wastewater solenoid valve 38, so that the problem of frost crack and water leakage caused by freezing inside the first filtering device 10, the inside of the second filtering device 20 and the water path can be effectively prevented. Further, the first waste water solenoid valve 37 and the second waste water solenoid valve 38 may be in communication connection with a control portion, and the control portion may control the first waste water solenoid valve 37 and the second waste water solenoid valve 38 to be opened or closed.

Further, as shown in fig. 2, the water purification system 100 may further include: first TDS probe 39 and second TDS probe 391, the pipeline between the first outlet of third filter equipment 40 and the import of booster pump 50 is provided with first TDS probe 39, and the pipeline between the export of third check valve 35 and delivery port 300 is provided with second TDS probe 391. First TDS probe 39, second TDS probe 391 all are connected with the control part, and first TDS probe 39 is arranged in detecting the ion concentration in the water that flows out from the first export of third filter equipment 40, and first TDS probe 39 is used for detecting the running water quality information that flows into the water inlet, and first TDS probe 39 detects out and transmits ion concentration information in the water to the control part after the ion concentration in the water that flows out from the first export of third filter equipment 40, and the control part can control water purification unit's display panel and show ion concentration information in the water.

The second TDS probe 391 is used for detecting the ion concentration in the water flowing out from the outlet of the third check valve 35, the second TDS probe 391 detects the ion concentration in the water flowing out from the outlet of the third check valve 35 and then transmits the ion concentration information in the water to the control part, and the control part can control the display panel of the water purifying device to display the ion concentration information in the water flowing out from the outlet of the third check valve 35.

It should be noted that the water purification system 100 of the first embodiment differs from the water purification system 100 of the second embodiment in the arrangement position of the first solenoid valve 30, the first solenoid valve 30 in the water purification system 100 of the first embodiment is arranged on the downstream side of the booster pump 50, and the first solenoid valve 30 in the water purification system 100 of the second embodiment is arranged on the upstream side of the third filtration device 40.

Note that the arrows in fig. 1 and 2 indicate the water flow direction.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water purification control method of a water purification device, the water purification device comprising a water inlet, a water outlet, a first filter device, a second filter device and a control valve assembly, the first filter device, the second filter device and the control valve assembly being disposed between the water inlet and the water outlet, the control valve assembly being configured to control a communication relationship between the first filter device and the second filter device, the method comprising:

when the water outlet function of the water purifying equipment is started, the control valve component is controlled to enable the first filtering device and the second filtering device to be connected in series, and the water purifying equipment carries out secondary purification on tap water flowing into the water inlet;

determining the water outlet time of the water purifying equipment;

2. The method of claim 1, wherein before the water-out time reaches a first preset time, the method further comprises:

if the water purifying equipment closes the water outlet function, the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in series, and a waste water valve corresponding to the second filtering device is controlled to be opened until the water outlet time reaches the first preset time.

3. The method of claim 1, wherein after the water-out time reaches a first preset time, the method further comprises:

and if the water outlet function of the water purifying equipment is closed, directly controlling the water purifying equipment to be standby.

4. The method according to any one of claims 1-3, wherein the control valve assembly comprises a first solenoid valve, a second solenoid valve and a third solenoid valve, an inlet of the first solenoid valve is connected to the water inlet, an outlet of the first solenoid valve is connected to an inlet of the first filtering device, an inlet of the second solenoid valve is connected to the water inlet, an outlet of the second solenoid valve is connected to an inlet of the second filtering device, an inlet of the third solenoid valve is connected to an outlet of the first filtering device, an outlet of the third solenoid valve and an outlet of the second filtering device are respectively connected to the water outlet, an outlet of the first filtering device is connected to an inlet of the second filtering device, wherein controlling the control valve assembly to connect the first filtering device and the second filtering device in series comprises:

5. The method of claim 4, wherein controlling the control valve assembly to connect the first filtering device in parallel with the second filtering device comprises:

6. The method according to any one of claims 1 to 3, wherein the control valve assembly comprises a first solenoid valve, a second solenoid valve and a third solenoid valve, the first solenoid valve is arranged at the water inlet, an outlet of the first solenoid valve is respectively communicated to an inlet of the first filtering device and an inlet of the second solenoid valve, an outlet of the second solenoid valve is communicated with an inlet of the second filtering device, an inlet of the third solenoid valve is communicated with an outlet of the first filtering device, an outlet of the third solenoid valve is respectively communicated to the water outlet, and an outlet of the first filtering device is communicated to an inlet of the second filtering device, wherein the control valve assembly is controlled to enable the first filtering device and the second filtering device to be connected in series, and comprises the following steps:

7. The method of claim 6, wherein controlling the control valve assembly to connect the first filter device in parallel with the second filter device comprises:

8. A water purification apparatus, comprising a memory, a processor and a water purification control program of the water purification apparatus stored in and operable on the memory, wherein when the processor executes the water purification control program of the water purification apparatus, the water purification control method of the water purification apparatus according to any one of claims 1 to 7 is implemented.

9. A computer-readable storage medium, characterized in that a water purification control program of a water purification apparatus is stored thereon, which when executed by a processor implements the water purification control method of the water purification apparatus according to any one of claims 1 to 7.

10. The utility model provides a water purification unit's water purification system which characterized in that, water purification unit includes water inlet and delivery port, water purification system includes:

the control part is used for controlling the control valve component to enable the first filtering device and the second filtering device to be connected in series when the water outlet function of the water purifying equipment is started, the water purifying equipment is used for secondarily purifying tap water flowing into the water inlet and determining the water outlet time of the water purifying equipment, and when the water outlet time reaches a first preset time, the control valve component is controlled to enable the first filtering device and the second filtering device to be connected in parallel, and the water purifying equipment is used for primarily purifying the tap water flowing into the water inlet.