CN110217839A - Water purification system and its control method - Google Patents

Abstract

The invention discloses a water purification device and a control method thereof, wherein the water purification system includes a water supply source, a filter, a water purification faucet, a domestic water faucet, a constant pressure valve, a flushing solenoid valve, a booster pump and a controller; the filter The water inlet is provided with a water inlet, and the water inlet is connected to the water outlet of the water supply source through the water inlet; the water outlet of the filter is provided with a clean water outlet and a waste water outlet, and both the clean water outlet and the waste water outlet are connected to the water inlet; The faucet is connected to the clean water outlet through the purified water outlet channel; the domestic water faucet is connected to the wastewater outlet through the wastewater outlet channel; the constant pressure valve is set on the water inlet channel; Water inlet waterway; the booster pump is located in the water inlet waterway, and the water inlet end of the booster pump is connected to the water outlet end of the flushing solenoid valve, and the water outlet end of the booster pump is connected to the water inlet end of the filter; the flushing solenoid valve and the booster pump Both are electrically connected to the controller. The invention can realize the effect of automatically cleaning the filter.

Description

Water purification system and control method thereof

technical field

The invention relates to the technical field of water purification, in particular to a water purification system and a control method thereof.

Background technique

With the improvement of people's living standards, people pay more and more attention to the current water quality. At present, many users have installed water purification equipment at home. In the water purification equipment, the filter plays a major role. At present, most of the wastewater generated in some water purifiers is controlled by the wastewater proportional solenoid valve to control the wastewater generated in the filter. It is regularly and quantitatively discharged into the sewer, so that the waste water is not fully utilized and all are lost, and when the waste water is accumulated in the filter, the service life of the filter is shortened. In addition, although some water purification equipment already has a flushing function, the purified water produced by the filter is circulated for flushing, which affects the output of purified water. Or, some water purification equipment with flushing function cannot realize the effect of automatic flushing.

The above content is only used to assist in understanding the technical solution of the present application, and does not mean that the above content is admitted as prior art.

Contents of the invention

The main purpose of the present invention is to propose a water purification system, aiming at realizing zero waste and automatically flushing the filter.

In order to achieve the above object, the water purification system proposed by the present invention, the water purification system includes a water supply source, a filter, a water purification faucet, a domestic water faucet, a constant pressure valve, a flushing solenoid valve, a booster pump and a controller; The water inlet of the filter is provided with a water inlet, and the water inlet is connected to the water outlet of the water supply source through the water inlet; the water outlet of the filter is provided with a water purification outlet and a waste water outlet, and the water purification outlet and the water outlet The waste water outlets are all connected to the water inlet; the water purification faucet is connected to the water purification outlet through the water purification outlet; the domestic water faucet is connected to the waste water outlet through the waste water outlet; the constant pressure valve is set at the The water inlet waterway; the water inlet end of the flushing solenoid valve is connected to the waste water outlet waterway, and the water outlet end of the flushing solenoid valve is connected to the water inlet waterway; the booster pump is arranged on the water inlet waterway, and The water inlet end of the booster pump is connected to the water outlet end of the flushing solenoid valve, and the water outlet end of the booster pump is connected to the water inlet end of the filter; the flushing solenoid valve and the booster pump are both electrically connected to the controller.

Optionally, the purified water outlet channel is provided with a high-voltage switch; and the high-voltage switch is electrically connected to the controller.

Optionally, a low-voltage switch is also provided between the booster pump and the water supply source, and the low-voltage switch is electrically connected to the controller.

Optionally, the water inlet channel is further provided with a circulating water tank, and the circulating water tank is arranged between the flushing solenoid valve and the booster pump.

Optionally, the water inlet channel is further provided with a water inlet solenoid valve, and the water inlet solenoid valve is electrically connected to the controller.

Optionally, the purified water outlet channel and/or the water inlet channel are further provided with a water quality sensor, and the water quality sensor is electrically connected to the controller.

The present invention also proposes a control method of the water purification system, including:

Control the water purification tap and domestic water tap to close;

The controller receives a cleaning instruction for cleaning the filter, controls the flushing solenoid valve and the booster pump to work, so that the liquid in the pipeline flows in through the water inlet of the filter, and flows through the water inlet of the filter. The waste water outlet flows out.

Optionally, the cleaning instruction is issued by a timer of the flushing solenoid valve.

Optionally, the timer of the flushing solenoid valve also includes a cleaning completion instruction, and the controller closes the flushing solenoid valve and the booster pump after receiving the cleaning completion instruction, and sends a reminder that they can work normally information.

Optionally, the controller receives a control instruction of the high-pressure switch of the water purification channel of the water purification system after receiving the normal operation instruction after sending out the prompt information of normal operation, and the controller receives the control instruction of the high-pressure switch of the water purification channel of the water purification system according to the high-pressure switch The control instruction controls the booster pump to work.

The technical scheme of the present invention connects the flushing electromagnetic valve between the waste water outlet waterway and the water inlet waterway, the booster pump is arranged on the water inlet waterway, and the water inlet end of the booster pump is connected to the water outlet end of the flushing electromagnetic valve, and the booster pump The water outlet is connected to the water inlet of the filter, and both the booster pump and the flushing solenoid valve are electrically connected to the controller. , so that the water in the wastewater outlet waterway can enter the water inlet waterway through the flushing solenoid valve, and then enter the water inlet of the filter through the water inlet waterway, and the wastewater is discharged to the wastewater outlet waterway again from the wastewater outlet of the filter, thereby realizing circular flushing and filtration device effect. The setting of the controller increases the convenience for the user to control the operation of cleaning the filter.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is the structural representation of an embodiment of the water purification system of the present invention;

Fig. 2 is the structural representation of filter in the water purification system of the present invention;

Fig. 3 is a sectional view of A-A in Fig. 2 .

Explanation of reference numbers:

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second" and so on in the embodiments of the present invention, the descriptions of "first", "second" and so on are only for descriptive purposes, and should not be interpreted as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

The invention provides a water purification system.

In the embodiment of the present invention, as shown in Figure 1, the water purification system includes a water supply source, a filter 10, a water purification faucet 91, a domestic water faucet 92, a constant pressure valve, a flushing solenoid valve 80, a booster pump 20 and a control The water inlet of the filter 10 is provided with a water inlet, and the water inlet is connected to the water outlet of the water supply source through the water inlet 1; the water outlet of the filter 10 is provided with a clean water outlet and a waste water outlet, and the clean water outlet and the waste water outlet are both It is connected with the water inlet; the clean water faucet 91 is connected to the clean water outlet through the clean water outlet waterway 2; the domestic water faucet 92 is connected to the waste water outlet through the waste water outlet waterway 3; the constant pressure valve is set on the water inlet waterway 1; The outlet end of the booster pump 20 is connected to the water outlet of the flushing electromagnetic valve 80, and the water outlet end of the flushing solenoid valve 80 is connected to the water inlet waterway 1; The water outlet end of the pressure pump 20 is connected to the water inlet end of the filter 10; the flushing solenoid valve 80 and the booster pump 20 are both electrically connected to the controller.

The water purification outlet and the waste water outlet of the filter 10 are all connected with the water inlet, then the tap water flowing in through the water inlet is filtered by the filter 10 and the purified water flows out from the water purification faucet 91 through the water purification outlet without being filtered by the filter 10 Waste water is flowed out by domestic water tap 92 by waste water outlet. It can be understood that, since the user frequently uses the faucet 92 for domestic use, the water on the water inlet waterway 1 and the waste water outlet waterway 3 is always in a state of continuous flow. Therefore, on the one hand, concentrated water that has not been filtered by the filter 10 It can be diluted by the tap water washed away from the back, and the diluted water can still meet the needs of people's domestic water (such as laundry, washing vegetables, etc.); Washing down in the direction of water flow can prolong the service life of the filter 10 .

Further, by electrically connecting both the flushing solenoid valve 80 and the booster pump 20 to the controller, the controller can control whether the flushing solenoid valve 80 and the booster pump 20 work. The controller can be a control box in the water purification system, or a client (such as a computer or a mobile phone, etc.) connected to the control box through 3G, 4G or Wifi. The user can operate the controller to control when to clean the filter 10 at any time; or, by inputting a specific control program in the controller, the controller can automatically control the cleaning of the filter 10 when corresponding conditions are reached. In addition, the water inlet end of the flushing electromagnetic valve 80 is connected to the waste water outlet waterway 3, the booster pump 20 is arranged on the water inlet waterway 1, and the water inlet end of the booster pump 20 is connected to the outlet end of the flushing electromagnetic valve 80, and the booster pump 20 The water outlet end of the filter 10 is connected to the water inlet end of the filter 10, then when the domestic water faucet 92 is closed and the flushing solenoid valve 80 is at least partially opened, the controller can control the booster pump 20 to work and control the flushing solenoid valve 80 to at least partially open , then at least a part of the water in the wastewater outlet waterway 3 passes through the flushing solenoid valve 80 under the action of the booster pump 20, and then circulates into the filter 10 after passing through the flushing solenoid valve 80, realizing the effect of repeatedly flushing the filter 10, avoiding The filter 10 sticks pollutants for a long time. When the controller controls the booster pump 20 to stop, since the booster pump 20 cannot provide power, the water pressure at each point of the flushing circuit composed of the waste water outlet waterway 3 and the water inlet waterway 1 is balanced, so that the water in the waste water outlet waterway 3 is then Can no longer enter the water inlet waterway 1 through the flushing solenoid valve 80 and enter through the water inlet of the filter 10 to flush the filter 10 .

In addition, it can be understood that the booster pump 20 will not only play a power role in the circuit of flushing the filter 10, but also when the waste water does not pass through the flushing solenoid valve 80, the booster pump 20 can also realize that it is about to enter the filter. The effect of increasing the pressure of the water is 10, so that the effect of increasing the water outlet speed of the purified water can be realized at the same time. In addition, it can be understood that the above-mentioned flushing solenoid valve 80 is a one-way valve, so that even if the domestic water faucet 92 is turned on and the flushing solenoid valve 80 is closed, the water flowing out of the domestic water faucet 92 must first pass through the filter 10 before being discharged. It will flow out from the waste water port of the filter 10 instead of directly flowing to the domestic water faucet 92 by the water supply source, so that most of the tap water is avoided from directly flowing to the domestic water faucet 92, thereby avoiding that the water quantity of the tap water passing through the filter 10 is less And affect the situation of the water purification output of water purification faucet 91. In order to better prolong the service life of the filter 10, the flushing solenoid valve 80 in this embodiment can be selected as a proportional solenoid valve. When the proportional solenoid valve is in the closed state, part of the water can still pass through the proportional solenoid valve, so as long as the booster pump 20 is turned on regardless of whether the proportional solenoid valve is turned on or off, there will always be a part of the waste water passing through the proportional solenoid valve into the flushing circuit The filter 10 is rinsed during the process, so as to avoid excessive pollutants adhering to the filter 10 for a long time.

When the constant pressure valve is set at the water outlet of the water supply source, it can prevent the excessive pressure of the water inlet and cause the water hammer effect in the water pipe, avoiding the damage and leakage of the pipe.

The technical scheme of the present invention connects the flushing electromagnetic valve 80 between the waste water outlet waterway 3 and the water inlet waterway 1, the booster pump 20 is arranged on the water inlet waterway 1, and the water inlet end of the booster pump 20 is connected to the flushing solenoid valve 80. The water outlet, the water outlet of the booster pump 20 is connected to the water inlet of the filter 10, the booster pump 20 and the flushing solenoid valve 80 are electrically connected to the controller, and the controller can control the booster pump 20 and the flushing solenoid valve 80 It is in the normal open state, so that through the power of the booster pump 20, the water in the waste water outlet waterway 3 can enter the water inlet waterway 1 through the flushing solenoid valve 80, and then enter the water inlet of the filter 10 through the water inlet waterway 1, and the The waste water outlet of the filter 10 discharges the waste water to the waste water outlet waterway 3 again, so as to realize the effect of circularly flushing the filter 10 . The setting of the controller increases the convenience for the user to control the operation of cleaning the filter 10 .

Further, the purified water outlet channel 2 is provided with a high-voltage switch 30; and the high-voltage switch 30 is electrically connected to the controller.

The high pressure switch 30 is arranged in the water purification outlet channel 2, so the high pressure switch 30 can detect the water pressure of the water purification outlet channel 2. For example, when the high pressure switch 30 detects that the water pressure of the clean water outlet channel 2 is too large (such as by closing the clean water faucet, and the filter 10 has been filtering tap water to produce clean water), the booster pump 20 can be controlled to stop The control command is sent to the controller, so that the controller can control the booster pump 20 to stop, so as to avoid the pressure of the purified water outlet channel 2 from continuing to increase; and when the high pressure switch 30 detects that the water pressure of the purified water outlet channel 2 is too low (For example, when the clean water faucet 91 is turned on to flow out clean water), the high pressure switch 30 can send a control instruction to control the operation of the booster pump 20 to the controller, so that the controller can control the booster pump 20 to work.

Further, a low-voltage switch 50 is also provided between the booster pump 20 and the water supply source, and the low-voltage switch 50 is electrically connected to the controller.

The low-pressure switch 50 is arranged on the water inlet channel 1 , and the low-pressure switch 50 can detect the water pressure of the water inlet channel 1 . For example, when the low pressure switch 50 detects that the water pressure of the water inlet waterway 1 is greater than a certain preset value (for example, when water is supplied to the water inlet waterway 1 through a water supply source), a control instruction for controlling the booster pump 20 to be turned on can be sent to the control device, so that the controller can control the booster pump 20 to open to increase the water inlet pressure of the filter 10, so as to increase the flow rate of the purified water outlet waterway 2; and when the low pressure switch 50 detects that the water pressure of the water inlet waterway 1 is too low (For example, when the water supply source is turned off), the low-voltage switch 50 can send a control instruction to control the shutdown of the booster pump 20 to the controller, so that the controller can control the shutdown of the booster pump 20 to avoid the booster pump 20 running without load.

Further, the water inlet channel 1 is also provided with a circulating water tank 40 , and the circulating water tank 40 is disposed between the flushing solenoid valve 80 and the booster pump 20 .

It can be understood that the circulating water tank 40 , the booster pump 20 and the flushing solenoid valve 80 are connected in series on the flushing circuit. By setting the circulating water tank 40, when the water supply source stops, if the filter 10 needs to be cleaned, the water in the circulating water tank 40 on the flushing circuit can be used as the water source for flushing the filter 10.

Further, the water inlet channel 1 is also provided with a water inlet solenoid valve 70, and the water inlet solenoid valve 70 is electrically connected to the controller.

The water inlet solenoid valve 70 is electrically connected to the controller, and the controller can control the water inlet solenoid valve 70 to close or open. The high-pressure switch 30 sends a control instruction for controlling the opening of the water inlet solenoid valve 70 to the controller, so that the controller controls the water inlet solenoid valve 70 to open, thereby ensuring the amount of water inflow and the amount of clean water flowing out from the clean water faucet 91 .

Of course, the waste water outlet waterway 3 can also be provided with a water pressure detection device 60. When the domestic water tap 92 is turned on, when the water pressure detection device 60 detects that the water pressure of the waste water outlet waterway 3 drops, the water pressure detection device 60 will control the water pressure. The control command for opening the water solenoid valve 70 is sent to the controller, so that the controller controls the water inlet solenoid valve 70 to open, thereby ensuring the water inflow and the water flow out from the faucet 92 for domestic use.

Further, the purified water outlet channel 2 is also provided with a water quality sensor (not shown in the figure), and the water quality sensor is electrically connected to the controller.

By arranging a water quality sensor in the water purification outlet channel 2, the water quality of the purified water flowing out of the water purification outlet channel 2 can be detected, so as to determine whether the filtering effect of the filter 10 is good. Of course, the water inlet channel 1 can also be equipped with a water quality sensor. By setting the water quality sensor at the water inlet channel 1 and the water purification outlet channel 2 at the same time, the controller can control the parameters of the water quality sensors of the water inlet channel 1 and the water purification outlet channel 2. Comparing and calculating, and then judging whether the filter 10 needs to be replaced. If it is determined that the filter 10 needs to be replaced, the controller can send a prompt message that the filter 10 needs to be replaced, and the prompt message can be prompted by a light source or sound.

Please refer to Fig. 2 and Fig. 3 in combination, in order to ensure a better filtering effect, the filter 10 in the technical solution of the present invention includes a housing 100 and a filter element 200; the housing 100 is provided with a water inlet 121, a clean water outlet 111 and a waste water outlet 112; the filter element 200 is placed inside the housing 100; the filter element 200 includes a central tube 210, a diaphragm 220 and a membrane ring 230; the central tube 210 includes a water inlet hole 2121 and a water outlet hole 2122, and the purified water outlet 111 communicates with the water outlet hole 2122; The diaphragm 220 is wrapped on the outside of the central tube 210, and a cavity 101 is formed between it and the housing 100; the water inlet 121 and the waste water outlet 112 are both connected to the cavity 101; the inner diameter D1 of the housing 100 and the outer diameter of the diaphragm 220 The range of the ratio of the diameters D2 is: 2≦D1:D2≦10; the diaphragm ring 230 is interposed between the diaphragm 220 and the inner wall of the casing 100 .

By installing the filter element 200 in the casing 100 and the casing 100 is provided with a water inlet 121 , tap water can enter the casing 100 through the water inlet 121 to be filtered through the filter element 200 . Specifically, the filter element 200 includes a central tube 210, a membrane 220 wrapped outside the central tube 210, and a membrane ring 230 sandwiched between the membrane 220 and the inner wall of the housing 100, so that tap water can first pass through the membrane ring 230 once. Purify, and then pass through the membrane 220 for secondary purification, and finally flow into the central pipe 210 and discharge the thoroughly purified water from the clean water outlet 111 . In addition, a cavity 101 is formed between the diaphragm 220 and the housing 100, and the waste water outlet 112 communicates with the cavity 101, so that the concentrated water that does not pass through the diaphragm 220 and enters the central pipe 210 remains in the cavity 101 and can pass through the cavity 101. The waste water outlet 112 is discharged. The diaphragm ring 230 is interposed between the diaphragm 220 and the housing 100 , so that the filter element 200 can be stably installed in the housing 100 , ensuring the stability of the filter element 200 in installation. By setting the range value of the ratio of the inner diameter D of the housing 100 to the outer diameter D of the diaphragm 220 as 2≤D1:D2≤10; then it can ensure that the water storage chamber has a suitable water storage space to avoid the diaphragm 220 On the other hand, it also prevents the housing 100 of the filter 10 from being too large relative to the filter element 200, so that the filter element 200 has the same pure water production capacity, and the housing 100 occupies a large installation space.

Please refer to FIG. 2 and FIG. 3 together. The housing 100 includes a membrane shell bottle body 110 and an end cap 120 detachably connected to the membrane shell bottle body 110. The end cap 120 covers the installation port of the membrane shell bottle body 110 and the water inlet 121. Opened at the end cap 120 , the waste water outlet 112 and the purified water outlet 111 are opened at the bottom of the membrane shell bottle body 110 .

By making the housing 100 include the membrane shell bottle body 110 and the end cap 120 detachably connected with the membrane shell bottle body 110, it is convenient for the user to replace the internal filter element 200 at any time, so that the housing 100 can be reused. Specifically, the membrane shell bottle body 110 and the end cap 120 may be screwed or buckled connected. In order to ensure better sealing performance, the optional membrane shell bottle body 110 and the end cap 120 are screwed in the technical solution of the present invention, that is, one of the membrane shell bottle body 110 and the end cap 120 can be provided with an internal thread, and the other Correspondingly, an external thread is provided, and the connection effect between the membrane shell bottle body 110 and the end cap 120 is realized by screwing the internal thread and the external thread.

In addition, by setting the water inlet 121 on the end cover 120, and opening the waste water outlet 112 and the clean water outlet 111 on the bottom of the membrane shell bottle 110, the structure of the filter element 200 is relatively simple. Of course, it can be understood that the waste water outlet 112 and/or the clean water outlet 111 can also be arranged at the same end as the water inlet 121 .

Further, as shown in FIG. 3 , a limit ring 113 protrudes from the inner wall of the membrane shell bottle body 110 , and the limit ring 113 is arranged close to the bottom wall of the membrane shell bottle body 110 , the central tube 210 passes through the limit ring 113 , and A sealing ring 300 is interposed between the central tube 210 and the limiting ring 113 . Through the setting of the above-mentioned limit ring 113, on the one hand, the installation of the filter element 200 can be limited, thereby further improving the installation effect of the filter element 200; on the other hand, a sealing ring is built between the central tube 210 and the limit ring 113 300, the spacer ring 113 separates the cavity 101 formed between the diaphragm 220 and the membrane shell body 110 from the water outlet of the central tube 210 relatively.

Further, as shown in Figure 3, the central pipe 210 includes a connecting section 211 and a water passing section 212 connected to the connecting section 211, the connecting section 211 blocks the water inlet 121; the water passing section 212 is hollow, and the side wall of the water passing section 212 is opened There is a water inlet hole 2121; the membrane ring 230 is set corresponding to the connecting section 211.

Through the above settings, the tap water flowing in from the water inlet 121 is prevented from flowing into the central pipe 210 first, but the tap water can be purified by the membrane ring 230 first, and then purified by the membrane 220 before being released from the central pipe 210. The water inlet hole 2121 of the water passing section 212 enters the center pipe 210, thereby ensuring that the water in the center pipe 210 is pure water that is thoroughly purified.

The present invention also proposes a control method of a water purification system, the water purification system is the above water purification system. The control methods of the water purification system include:

Control clean water faucet 91 and domestic water faucet 92 to close;

It can be understood that the closing of the clean water faucet 91 and the domestic water faucet 92 can be closed by the user, and a timing unit can also be set in the controller. When a certain time is reached, the controller controls the clean water faucet 91 and the domestic water faucet 92. closure. For example, the timing unit can set the time for closing the clean water faucet 91 and the domestic water faucet 92 to be between 0:00 and 2:00 in the morning.

The controller receives the cleaning instruction for cleaning the filter 10, controls the flushing solenoid valve 80 and the booster pump 20 to work, so that the liquid in the pipe flows in through the water inlet of the filter 10, and flows out through the waste water outlet of the filter 10;

After the controller receives the cleaning instruction for cleaning the filter 10, it controls the flushing solenoid valve 80 and the booster pump 20 to work, and the booster pump 20 can flush the solenoid valve 80, the booster pump 20 and the pipeline connected in series with the filter 10. The power is provided by the liquid inside, so that the liquid circulates in the circuit formed by the three in series, and the liquid can enter from the water inlet of the filter 10 and flow out through the waste water outlet of the filter 10, thereby realizing circular flushing of the filter 10 effects.

Specifically, in this embodiment, the cleaning instruction is issued by the timer of the flushing solenoid valve 80 .

The interior of the flushing solenoid valve 80 is provided with a timer. By electrically connecting the flushing solenoid valve 80 to the controller, the timer of the flushing solenoid valve 80 can be opened as the cleaning instruction when it reaches a specified time, thereby prompting that cleaning is required, and then The cleaning instruction is sent to the controller, and when the controller receives the cleaning instruction sent by the timer, it controls the flushing solenoid valve 80 and the booster pump 20 to work.

Further, the timer of the flushing solenoid valve 80 also includes a cleaning completion instruction, and the controller closes the flushing solenoid valve 80 and the booster pump 20 after receiving the cleaning completion instruction, and sends a prompt message that they can work normally.

After the filter 10 is cleaned for a period of time, for example, the filter 10 has been cleaned for half an hour or one hour, the timer can be closed, so as to send a cleaning completion instruction to the controller, and the controller then controls the closing of the flushing solenoid valve 80 to avoid Always keep the flushing solenoid valve 80 and the booster pump 20 in the working state, and send out a prompt message that they can work normally. The prompt information may be a light prompt or a sound prompt. It can be understood that the normal operation means that the clean water faucet 91 and the domestic water faucet 92 can be opened subsequently, and the clean water can flow out from the clean water faucet 91 , and the mixed water of waste water and tap water can flow out from the domestic water faucet 92 .

In one embodiment, the controller receives the control command of the high pressure switch 30 of the water purification system after receiving the normal work command after sending out the prompt message of normal operation, and the controller controls the booster pump 20 to work according to the control command of the high pressure switch 30 .

The normal work instruction refers to the action state of opening the clean water faucet 91 and/or the domestic water faucet 92 . It is understandable that the water purification system may not immediately enter the normal working state after the controller sends out the prompt message of normal operation. prompt information, but the user may need to turn on the clean water faucet 91 and the domestic water faucet 92 after getting up in the morning, and only then will the controller receive the normal work instruction. After the controller receives the support work instruction and the control instruction of the high-pressure switch 30 of the water purification system of the water purification system, the controller controls the booster pump 20 to work according to the control instruction, thereby improving the water purification efficiency.

In another embodiment, after the controller sends out the prompt message of normal operation, after receiving the normal operation instruction, it receives the control instruction of the low pressure switch 50 of the water inlet channel 1 of the water purification system, and the controller according to the control instruction of the low pressure switch 50 Control the booster pump 20 to stop working.

The normal work instruction still refers to the action state of opening the clean water faucet 91 and/or the domestic water faucet 92 . In addition, after the controller receives the normal work instruction, it can only open the water purification faucet 91 and/or the domestic water faucet 92 normally, but it is uncertain whether water can flow from the water purification faucet 91 and/or the domestic water faucet 92 . For example, when the water supply source is cut off, in order to prevent the booster pump 20 from running without load, the controller can control the booster pump 20 to stop working according to the control instruction of the low pressure switch 50 . Specifically, the low pressure switch 50 can detect the water pressure of the water inlet channel 1, and when the water pressure drops to zero, the low pressure switch 50 sends a control command to the controller, and then the controller controls the booster pump 20 to stop.

The above descriptions are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or direct/indirect Application in other related technical fields is included in the patent protection scope of the present invention.

Claims (10)

1. A water purification system, characterized in that, comprising: source of water supply; filter, the water inlet of the filter is provided with a water inlet, and the water inlet is connected to the water outlet of the water supply source through the water inlet; the water outlet of the filter is provided with a clean water outlet and a waste water outlet, so Both the clean water outlet and the waste water outlet are connected to the water inlet; A water purification faucet, the water purification faucet is connected to the water purification outlet through a water purification outlet channel; A domestic water faucet, the domestic water faucet is connected to the waste water outlet through the waste water outlet waterway; A constant pressure valve, the constant pressure valve is arranged in the water inlet channel; A flushing solenoid valve, the water inlet end of the flushing solenoid valve is connected to the waste water outlet waterway, and the water outlet end of the flushing solenoid valve is connected to the water inlet waterway; A booster pump, the booster pump is arranged in the water inlet channel, and the water inlet end of the booster pump is connected to the water outlet end of the flushing solenoid valve, and the water outlet end of the booster pump is connected to the filter the intake end of; and The controller, the flushing solenoid valve and the booster pump are all electrically connected to the controller. 2. The water purification system according to claim 1, wherein the water purification outlet channel is provided with a high-voltage switch; and the high-voltage switch is electrically connected to the controller. 3 . The water purification system according to claim 2 , wherein a low pressure switch is further arranged between the booster pump and the water supply source, and the low pressure switch is electrically connected to the controller. 4 . 4. The water purification system according to claim 1, wherein the water inlet channel is further provided with a circulating water tank, and the circulating water tank is provided between the flushing solenoid valve and the booster pump. 5. The water purification system according to claim 1, wherein the water inlet channel is further provided with a water inlet solenoid valve, and the water inlet solenoid valve is electrically connected to the controller. 6 . The water purification system according to claim 1 , wherein the water purification outlet channel and/or the water inlet channel are further provided with a water quality sensor, and the water quality sensor is electrically connected to the controller. 7. A control method of the water purification system according to any one of claims 1 to 6, characterized in that, comprising: Control the water purification tap and domestic water tap to close; The controller receives the cleaning instruction for cleaning the filter, controls the flushing solenoid valve and the booster pump to work, so that the liquid in the pipeline flows in through the water inlet of the filter, and flows through the water inlet of the filter. The waste water outlet flows out. 8. The control method of the water purification system according to claim 7, wherein the cleaning instruction is issued by a timer of the flushing solenoid valve. 9. The control method of the water purification system as claimed in claim 8, wherein the timer of the flushing solenoid valve also includes a cleaning completion instruction, and the controller closes the cleaning completion instruction after receiving the cleaning completion instruction. Flush the solenoid valve and booster pump as described above, and issue a prompt message that they can work normally. 10. The control method of the water purification system according to claim 9, characterized in that, after the controller sends out the prompt message of normal operation and receives the normal operation instruction, it receives the information of the water purification channel of the water purification system. The control instruction of the high-pressure switch, the controller controls the operation of the booster pump according to the control instruction of the high-pressure switch.