Wastewater discharge method and device, water purifier and storage medium

Abstract

The invention relates to the technical field of water purifiers, and discloses a wastewater discharge method and device, a water purifier and a storage medium, the method comprises the following steps: obtaining a concentrated water discharge mode by receiving a purified water preparation signal of a filter system, the concentrated water discharge mode representing a discharge mode of concentrated water generated by the filter system; and controlling the filtering system to discharge concentrated water according to the concentrated water discharge mode. In the application, the received purified water preparation signal of the filtering system is taken as the time node for acquiring the concentrated water discharge mode, and the discharge mode of the concentrated water generated by the filtering system is controlled in time, so that the concentrated water is prevented from being directly discharged to a sewer, thereby greatly reducing the discharge of the concentrated water, improving the utilization rate of the concentrated water and reducing the cost. The water resource waste is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water purifiers, and in particular to a wastewater discharge method, device, water purifier and storage medium. Background Art

[0002] As people's living standards improve, they pay more and more attention to drinking water health, and water purifiers as health products are getting more and more attention and are widely used in people's daily lives. Among the many water purifiers, reverse osmosis water purifiers have become the mainstream of domestic household water purifiers.

[0003] However, the filtration pore size of the reverse osmosis filter membrane in the reverse osmosis water purifier is only 0.0001 microns, the membrane surface is easily clogged, and the performance of the membrane is easily affected by residual chlorine, organic matter, etc., resulting in a short service life of the reverse osmosis filter membrane. Therefore, in order to protect the reverse osmosis filter membrane and extend its service life, it is necessary to continuously rinse the surface of the reverse osmosis filter membrane to reduce the salt concentration on the surface of the reverse osmosis filter membrane and slow down the blockage caused by scaling on the membrane surface. However, due to the limitations of its working principle, the water purifier must produce concentrated water in the process of preparing purified water, and the concentrated water cannot be drunk and is usually discharged directly into the sewer, resulting in a waste of water resources. Summary of the invention

[0004] Based on this, it is necessary to propose a wastewater discharge method, device, water purifier and storage medium to address the technical problem that the concentrated water produced by the water purifier in the prior art is directly discharged into the sewer, causing waste of water resources.

[0005] In a first aspect, a wastewater discharge method is provided, the method is applied to a water purifier, the water purifier comprises a tap water flow sensor, a first pressure sensor, a clean water container, a water inlet solenoid valve, a booster pump and a filtration system, one end of the water inlet solenoid valve is connected to a tap water outlet, the other end of the water inlet solenoid valve is connected to one end of the booster pump, the water inlet end of the filtration system is connected to the other end of the booster pump, the clean water discharge end of the filtration system is connected to the clean water container, the concentrated water discharge end of the filtration system is connected to a tap water discharge pipe, the tap water flow sensor is arranged on the tap water discharge pipe, and is used to detect a water flow signal of the tap water discharge pipe, and the first pressure sensor is used to detect the water pressure of the pipe where the clean water container is located;

[0006] The method comprises:

[0007] Upon receiving the water purification signal of the filtration system, obtaining a concentrated water discharge mode, wherein the concentrated water discharge mode indicates a discharge method of the concentrated water generated by the filtration system;

[0008] According to the concentrated water discharge mode, the filtering system is controlled to discharge the concentrated water.

[0009] In a second aspect, a wastewater discharge device is provided, the device is applied to a water purifier, the water purifier comprises a tap water flow sensor, a first pressure sensor, a clean water container, a water inlet solenoid valve, a booster pump and a filtration system, one end of the water inlet solenoid valve is connected to a tap water outlet, the other end of the water inlet solenoid valve is connected to one end of the booster pump, the water inlet end of the filtration system is connected to the other end of the booster pump, the clean water discharge end of the filtration system is connected to the clean water container, the concentrated water discharge end of the filtration system is connected to a tap water discharge pipe, the tap water flow sensor is arranged on the tap water discharge pipe, and is used to detect a water flow signal of the tap water discharge pipe, and the first pressure sensor is used to detect the water pressure of the pipe where the clean water container is located;

[0010] The device comprises:

[0011] a discharge mode acquisition module, configured to acquire a concentrated water discharge mode upon receiving a water purification signal from the filtration system, wherein the concentrated water discharge mode indicates a discharge method of concentrated water generated by the filtration system;

[0012] The discharge module is used to control the filtering system to discharge the concentrated water according to the concentrated water discharge mode.

[0013] In a third aspect, a water purifier is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and further comprising: a tap water flow sensor, a first pressure sensor, a clean water container, a water inlet solenoid valve, a booster pump, and a filtration system, wherein one end of the water inlet solenoid valve is connected to a tap water outlet, the other end of the water inlet solenoid valve is connected to one end of the booster pump, the water inlet end of the filtration system is connected to the other end of the booster pump, the clean water discharge end of the filtration system is connected to the clean water container, the concentrated water discharge end of the filtration system is connected to a tap water discharge pipe, the tap water flow sensor is arranged on the tap water discharge pipe for detecting a water flow signal of the tap water discharge pipe, and the first pressure sensor is used for detecting the water pressure of the pipe where the clean water container is located; the processor implements the steps of the above-mentioned wastewater discharge method when executing the computer program.

[0014] In a fourth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned wastewater discharge method are implemented.

[0015] The present application provides a wastewater discharge method, device, water purifier and storage medium, which obtains a concentrated water discharge mode upon receiving a water purification signal from the filter system, wherein the concentrated water discharge mode indicates the discharge mode of the concentrated water generated by the filter system; and controls the filter system to discharge the concentrated water according to the concentrated water discharge mode. In the present application, the water purification signal received from the filter system is used as the time node for obtaining the concentrated water discharge mode, so as to timely control the discharge mode of the concentrated water generated by the filter system, and avoid directly discharging the concentrated water into the sewer, thereby greatly reducing the discharge of concentrated water, improving the utilization rate of concentrated water, and reducing the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] in:

[0018] Figure 1 A schematic diagram of an application environment of a wastewater discharge method in an embodiment;

[0019] Figure 2 A schematic diagram of a wastewater discharge method according to an embodiment;

[0020] Figure 3 A schematic diagram of an application environment of a wastewater discharge method in another embodiment;

[0021] Figure 4 A schematic diagram of an application environment of a wastewater discharge method in another embodiment;

[0022] Figure 5 A schematic diagram of an application environment of a wastewater discharge method in another embodiment;

[0023] Figure 6 A schematic diagram of an application environment of a wastewater discharge method in another embodiment;

[0024] Figure 7 is a schematic block diagram of the structure of a wastewater discharge device in one embodiment;

[0025] Figure 8 1 is a structural block diagram of a water purifier in one embodiment.

[0026] Main component symbols:

[0027] aa-tap water outlet; 01-tap water discharge pipe; 02-pipe where the clean water container is located; 03-concentrated water discharge pipe; 04-special scene discharge pipe; 05-clean water reflux pipe; 06-clean water discharge pipe; 10-tap water flow sensor; 11-first pressure sensor; 12-clean water container; 13-water inlet solenoid valve; 14-boosting pump; 15-filtration system; 20-first waste water solenoid valve; 21-second waste water solenoid valve; 22-tap water reflux check valve; 23-second pressure sensor; 24-waste water container; 30-reflux solenoid valve; 31-reflux check valve; 40-first clean water discharge solenoid valve; 41-clean water discharge check valve; 50-second clean water discharge solenoid valve; 51-water flow sensor. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The wastewater discharge method provided by the embodiment of the present invention can be applied in Figure 1 In the application environment shown. Figure 1 As shown, the water purifier includes a tap water flow sensor 10 , a first pressure sensor 11 , a purified water container 12 , a water inlet solenoid valve 13 , a booster pump 14 and a filtering system 15 .

[0030] Among them, one end of the water inlet solenoid valve 13 is connected to the tap water outlet aa, the other end of the water inlet solenoid valve aa is connected to one end of the boosting pump 14, the water inlet end of the filtration system 15 is connected to the other end of the boosting pump 14, the clean water discharge end of the filtration system 15 is connected to the clean water container 12, and the concentrated water discharge end of the filtration system 15 is connected to the tap water discharge pipe 01. The tap water flow sensor 10 is arranged on the tap water discharge pipe 01, which is used to detect the water flow signal of the tap water discharge pipe 01, and the first pressure sensor 11 is used to detect the water pressure of the pipe where the clean water container 12 is located.

[0031] The water inlet solenoid valve 13 is a solenoid valve used to control the flow of tap water flowing out of the tap water outlet aa to the booster pump 14. The booster pump 14 is used to boost the pressure of the tap water passing through the water inlet solenoid valve 13. The tap water flow sensor 10 can be a flow sensor.

[0032] The filter system 15 is used to filter the tap water pressurized by the booster pump 14 to prepare clean water. In the process of preparing clean water, concentrated water is produced. The concentrated water can be introduced into the tap water discharge pipe 01 through the concentrated water discharge end of the filter system 15, mixed with the tap water in the tap water discharge pipe 01, and discharged through the tap water faucet at the end of the tap water discharge pipe 01. The filter system 15 can be used to remove harmful substances such as heavy metals, bacteria, and viruses in tap water. Optionally, the filter system 15 uses a reverse osmosis filter element membrane for filtration.

[0033] The clean water container 12 may be a pressure water storage tank.

[0034] See also Figure 2 As shown, Figure 2 A schematic flow chart of a wastewater discharge method provided in an embodiment of the present invention. The method can be applied to Figure 1 In the application environment shown. The wastewater discharge method includes the following steps S100 to S200:

[0035] S100: After receiving the water purification signal from the filtration system 15, a concentrated water discharge mode is obtained, where the concentrated water discharge mode indicates a discharge method of the concentrated water generated by the filtration system.

[0036] Among them, the clean water preparation signal can be a signal automatically generated by the filtration system 15 after the filtration system 15 is controlled to be turned on. The clean water preparation signal can be used to indicate that the water inlet solenoid valve 13 is turned on, the booster pump 14 is turned on, and the filtration system 15 is started, so that the tap water flowing out of the tap water outlet aa is pressurized by the booster pump 14 and flows into the water inlet end of the filtration system 15, and the filtration system 15 starts to prepare clean water.

[0037] In one embodiment, an LED light (not shown in the figure) can be provided on the water purifier, and the clean water preparation signal can be a signal for controlling the LED light generated after detecting that the control filtration system 15 is turned on. For example, the number of flashes of the LED light, the color of the LED light, etc. are controlled by the clean water preparation signal to prompt the user that the water purifier has started to prepare clean water, and remind the user to select the corresponding concentrated water discharge mode according to the current water demand.

[0038] In one embodiment, the purified water preparation signal may be a text message generated after detecting that the control filtration system 15 is turned on and sent to a user terminal (such as a mobile phone, tablet, etc.) to prompt the user that the water purifier has started to prepare purified water and remind the user to select the corresponding concentrated water discharge mode according to the current water demand.

[0039] In one embodiment, a sound player (not shown in the figure) is provided on the water purifier, and the purified water preparation signal may be a sound information generated after detecting that the control filtration system 15 is turned on. The sound information is played through the sound player to prompt the user that the water purifier has started to prepare purified water, and to remind the user to select the corresponding concentrated water discharge mode according to the current water demand.

[0040] S200: According to the concentrated water discharge mode, controlling the filtering system to discharge the concentrated water.

[0041] Among them, the concentrated water discharge mode may include a mixed discharge mode in which concentrated water and tap water are mixed and discharged, and a pure concentrated water discharge mode.

[0042] In this embodiment, the concentrated water discharge mode is obtained by receiving the purified water preparation signal of the filter system 15, and the concentrated water discharge mode represents the discharge mode of the concentrated water generated by the filter system 15; according to the concentrated water discharge mode, the filter system 15 is controlled to discharge the concentrated water. In this application, the purified water preparation signal received by the filter system 15 is used as the time node for obtaining the concentrated water discharge mode, so as to timely control the discharge mode of the concentrated water generated by the filter system 15, and avoid directly discharging the concentrated water into the sewer, thereby greatly reducing the discharge of concentrated water, improving the utilization rate of concentrated water, and reducing the waste of water resources.

[0043] In some optional implementations of this embodiment, in step S200, that is, according to the concentrated water discharge mode, controlling the filtration system to discharge the concentrated water includes the following steps S210 to S213:

[0044] S211: If the concentrated water discharge mode is a mixed discharge mode, during the process of the filtration system 15 preparing the purified water, if the water flow signal is detected and a mixed discharge scenario determination instruction is received, the target mixed discharge scenario is determined according to the mixed discharge scenario determination instruction, wherein the mixed discharge mode is to discharge the tap water after mixing it with the concentrated water.

[0045] Among them, the mixed emission scene determination instruction is an instruction for determining the target mixed emission scene. The mixed emission scene determination instruction can be digital information, pattern information, or text information. Exemplarily, in the application scenario of kitchen water, the mixed emission scene can be scenes such as washing vegetables, washing hands, and washing rice. Optionally, mixed emission scenes such as washing vegetables, washing hands, and washing rice can be replaced by digital information, such as 1 represents washing vegetables, 2 represents washing hands, and 3 represents washing rice. Furthermore, scenes such as washing vegetables, washing hands, and washing rice can be further refined. For example, washing vegetables includes washing vegetables, washing root vegetables, washing meat, etc., wherein 11 represents washing vegetables (such as Shanghai greens, chicken feather vegetables, etc.), and 12 represents washing root vegetables (such as sweet potatoes, potatoes, etc.). Based on this, the mixed emission scene determination instruction can be the above-mentioned 1, 2, 3, 11, 12.

[0046] In the process of preparing purified water by the filtration system 15, if a water flow signal is detected, it means that water flows through the tap water discharge pipe 01, and a mixed discharge scene determination instruction is received, which means that the user has received the purified water preparation signal and selected a concentrated water discharge mode that meets the user's current water demand. In this way, a mixed discharge scene determination instruction is generated according to the user's selection to determine the target mixed discharge scene. Specifically, the mixed discharge mode can be to mix tap water with the concentrated water and then discharge it through the faucet at the end of the tap water discharge pipe 01.

[0047] S212: Obtain the tap water mixing ratio corresponding to the target mixed discharge scenario.

[0048] The tap water mixing ratio may be a mixing ratio between the flow rate of tap water and the flow rate of concentrated water, or may be a ratio between the flow time of tap water and the flow time of concentrated water.

[0049] S213: Based on the mixing ratio of the tap water, control the concentrated water discharged from the filtration system to enter the tap water drainage pipe.

[0050] In one embodiment, the water purifier 100 may further include a concentrated water flow sensor (not shown in the figure), which may be a flow sensor, and is disposed in a connecting pipe between the concentrated water discharge end and the tap water discharge pipe 01, and is used to detect a water flow signal on a connecting pipe between the concentrated water discharge end of the filtration system 15 and the tap water discharge pipe 01. Based on this, the concentrated water discharged from the filtration system may be controlled to enter the tap water discharge pipe 01 based on the water flow signal of the tap water, the water flow signal of the concentrated water, and the mixing ratio of the tap water, so as to be discharged through the tap water faucet at the end of the tap water discharge pipe 01, so that the ratio of the tap water to the concentrated water in the water discharged from the tap water faucet conforms to the mixing ratio of the tap water.

[0051] In one embodiment, the water purifier 100 may further include a first flow control valve (not shown in the figure), a second flow control valve (not shown in the figure), wherein the first flow control valve is arranged on the tap water discharge pipe 01, and is used to control the water flow rate of the tap water discharge pipe 01 by controlling the opening of the first flow control valve, and the second flow control valve may be arranged in the connecting pipe between the concentrated water discharge end and the tap water discharge pipe 01, and is used to control the water flow rate of the connecting pipe between the concentrated water discharge end and the tap water discharge pipe 01 by the opening of the second flow control valve. Optionally, the first flow control valve may be a butterfly valve, a ball valve, a stop valve and a gate valve. The second flow control valve may be a butterfly valve, a ball valve, a stop valve and a gate valve. Based on this, the concentrated water discharged by the filtration system may be controlled to enter the tap water discharge pipe 01 and mix with the tap water based on the opening of the first flow control valve, the opening of the second flow control valve and the mixing ratio of the tap water, and then be discharged through the tap water faucet at the end of the tap water discharge pipe 01.

[0052] In this embodiment, by determining the target mixed discharge scenario, and then obtaining the tap water mixing ratio corresponding to the target mixed discharge scenario, based on the tap water mixing ratio and combined with the target mixed discharge scenario, the concentrated water discharged by the filtration system 15 is controlled to enter the tap water discharge pipe 01 and mix with the tap water, and then be discharged through the tap at the end of the tap water discharge pipe 01. By adapting measures to local conditions, that is, combining the current water demand of users, the concentrated water discharged by the filtration system 15 is fully utilized to avoid the concentrated water being directly discharged into the sewer, thereby greatly reducing the discharge of concentrated water, improving the utilization rate of concentrated water, and reducing the waste of water resources.

[0053] In some optional implementations of this embodiment, step S213, that is, controlling the concentrated water discharged from the filtration system to enter the tap water discharge pipe based on the tap water mixing ratio, includes the following steps S2130 to S2132:

[0054] S2130: Obtain a water outlet setting signal of the tap water drainage pipe 01, wherein the water outlet setting signal carries a target tap water flow rate.

[0055] Among them, the water outlet setting signal is used to represent the signal of the water flow rate of the tap water drainage pipe 01, and the target tap water flow rate can be the default flow rate of the tap water drainage pipe 01, or the tap water flow rate set by the user.

[0056] S2131: Determine the concentrated water discharge rate based on the diameter of the tap water discharge pipe, the diameter of the concentrated water discharge end, the target tap water flow rate and the tap water mixing ratio.

[0057] Among them, the opening degree of the second flow control valve can be determined based on the diameter of the tap water discharge pipe, the diameter of the concentrated water discharge end, the target tap water flow rate and the tap water mixing ratio, thereby determining the concentrated water discharge rate.

[0058] S2132: Based on the concentrated water discharge rate, control the concentrated water discharged from the filtration system to enter the tap water discharge pipe 01.

[0059] In this embodiment, the concentrated water discharge rate is determined based on the diameter of the tap water discharge pipe 01, the diameter of the concentrated water discharge end, the target tap water flow rate and the tap water mixing ratio. Thus, by controlling the concentrated water discharge rate, the tap water and concentrated water are mixed based on the tap water mixing ratio. On the one hand, the concentrated water discharge rate can be determined based on the target tap water flow rate and the tap water mixing ratio, so that the mixed water meets the user's water demand. On the other hand, it can avoid the concentrated water from being discharged directly into the sewer, thereby greatly reducing the discharge of concentrated water, improving the utilization rate of concentrated water, and reducing the waste of water resources.

[0060] Figure 3 A schematic diagram of an application environment of a wastewater discharge method in another embodiment is provided, such as Figure 3 As shown, the water purifier also includes a first wastewater solenoid valve 20, a second wastewater solenoid valve 21, a concentrated water discharge pipe 03, a special scenario discharge pipe 04, a tap water reflux check valve 22, a second pressure sensor 23 and a wastewater container 24; the first end of the concentrated water discharge pipe 03 is connected to the concentrated water discharge port of the filtration system 15, the first end of the special scenario discharge pipe 04 is connected to the tap water outlet aa, the second end of the concentrated water discharge pipe 03 is connected to the second end of the special scenario discharge pipe 04, the second pressure sensor 23, the wastewater container 24 and the first wastewater solenoid valve 20 are sequentially arranged in the concentrated water discharge pipe 03, the tap water reflux check valve 22 is arranged in the special scenario discharge pipe 04, for preventing the concentrated water from flowing back to the tap water outlet, and the second wastewater solenoid valve 21 is arranged in the special scenario discharge pipe 04.

[0061] Among them, the first wastewater solenoid valve 20 is a solenoid valve used to control the on-off of the concentrated water discharge pipe 03. The second wastewater solenoid valve 21 is a solenoid valve used to control the on-off of the special scene discharge pipe 04. The concentrated water discharge pipe is a water pipe or a pipe. The special scene discharge pipe 04 is a water pipe or a pipe. The tap water reflux check valve 22 is a check valve used to prevent the concentrated water discharged from the filtration system 15 from flowing back to the tap water outlet aa. The second pressure sensor 23 is a pressure sensor used to detect the water pressure of the concentrated water discharge pipe 03. The wastewater container 24 can be a pressure water storage barrel. It should be noted that when the pressure water storage barrel meets the discharge conditions of the concentrated water, the concentrated water in the wastewater container can be mixed with tap water and discharged for special scenes such as watering flowers or flushing toilets.

[0062] The wastewater discharge method provided by the embodiment of the present invention can be applied in Figure 3 In some optional implementations of this embodiment, in step S200, that is, according to the concentrated water discharge mode, controlling the filtration system to discharge the concentrated water includes the following steps S220 to S223:

[0063] S220: If the concentrated water discharge mode is a mixed discharge mode, during the process of the filtration system 15 preparing purified water, if the water flow signal is not detected, the concentrated water discharge mode is switched to a pure concentrated water discharge mode.

[0064] Among them, the pure concentrated water discharge mode is a mode in which the concentrated water generated by the filtration system is discharged through the concentrated water discharge pipe 03.

[0065] Among them, if the concentrated water discharge mode is a mixed discharge mode, during the process of the filtration system 15 preparing purified water, if the water flow signal is not detected, it means that the user has not turned on the tap, and the concentrated water discharge mode is switched to a pure concentrated water discharge mode.

[0066] S221: Determine whether a pure concentrated water discharge scenario determination instruction is obtained.

[0067] Among them, the concentrated water discharge scene determination instruction is an instruction for determining the pure concentrated water discharge scene. The concentrated water discharge scene determination instruction can be digital information, pattern information, or text information. Exemplarily, in an application scenario, the concentrated water discharge scene can be scenes such as watering flowers and flushing toilets. Optionally, concentrated water discharge scenes such as watering flowers and flushing toilets can be replaced by digital information, such as 4 represents watering flowers, and 5 represents flushing toilets. Furthermore, scenes such as watering flowers and flushing toilets can be further refined. For example, watering flowers includes target flower garden 1, target flower garden 2, target flower garden 3, etc. in a park, wherein 41 represents target flower garden 1, 42 represents target flower garden 2, and 43 represents target flower garden 3. Based on this, the concentrated water discharge instruction can be the above-mentioned 4, 5, 41, 42, and 43.

[0068] S222: If yes, determine the target concentrated water discharge scenario according to the instruction of the pure concentrated water discharge scenario, and based on the target concentrated water discharge scenario, control the concentrated water discharged by the filtration system 15 to enter the special scenario discharge pipe 04 corresponding to the target concentrated water discharge scenario.

[0069] Among them, if the pure concentrated water discharge scenario determination instruction is obtained, it means that the user has special scenario usage requirements.

[0070] Among them, the special scene discharge pipe 04 is used for special scene usage needs. The special scene usage demand can be to mix concentrated water with tap water for flushing toilets, watering flowers, etc. The special scene discharge pipe 04 can be a first end connected to the tap water inlet, and the second end connected to the second end of the concentrated water discharge pipe 03. The third end of the special scene discharge pipe 04 is the water outlet end of concentrated water and tap water. The water outlet end can be a flushing end for flushing toilets, a watering end for watering flowers, or an external water storage bucket. The water storage bucket can be used to store the concentrated water discharged by the filtration system 15 when the user has no special scene usage needs, and no water flow signal is detected, and the water pressure of the concentrated water discharge pipe is greater than the preset pressure threshold. It is used for emergency use, which can avoid the concentrated water from being directly discharged into the sewer, thereby greatly reducing the discharge of concentrated water, improving the utilization rate of concentrated water, and reducing the waste of water resources.

[0071] S223: If not, determine whether the water pressure of the concentrated water discharge pipe 03 is less than the preset pressure threshold. If the water pressure of the concentrated water discharge pipe 03 is less than the preset pressure threshold, control the concentrated water discharged by the filtration system to enter the wastewater container.

[0072] Among them, if the water pressure of the concentrated water discharge pipe is less than the preset pressure threshold, it means that the wastewater storage space of the wastewater container has not reached the storage upper limit of the wastewater container; if the water pressure of the concentrated water discharge pipe is greater than or equal to the preset pressure threshold, it means that the wastewater storage space of the wastewater container has reached the storage upper limit of the wastewater container.

[0073] In one scenario, if the pure concentrated water discharge scenario determination instruction is not obtained, it means that the user has no special scenario usage requirements, and no water flow signal is detected, indicating that the user has no need for concentrated water at this time, so the first waste water solenoid valve 20 is controlled to open and the first waste water solenoid valve 21 is controlled to close, so as to store the concentrated water discharged from the filtration system 15 in an external water storage tank.

[0074] In this embodiment, by judging that the concentrated water discharge mode is a mixed discharge mode, if the water flow signal is not detected during the process of the filtration system 15 preparing purified water, the concentrated water discharge mode is switched to a pure concentrated water discharge mode, thereby improving the intelligence of the water purifier. By judging whether a pure concentrated water discharge scene determination instruction is obtained, the target concentrated water discharge scene is determined. Based on this, the concentrated water discharged by the filtration system is controlled to enter the special scene discharge pipe corresponding to the target concentrated water discharge scene, thereby achieving full utilization of the concentrated water discharged by the filtration system 15 in a manner adapted to local conditions, that is, in combination with the current water demand of the user, and avoiding the concentrated water from being directly discharged into the sewer, thereby greatly reducing the discharge of concentrated water, improving the utilization rate of concentrated water, and reducing the waste of water resources.

[0075] Figure 4 A schematic diagram of an application environment of a wastewater discharge method in another embodiment is provided, such as Figure 4 As shown, the water purifier includes a clean water return pipe 05, a reflux check valve 30 and a reflux solenoid valve 31; the first end of the clean water return pipe 05 is connected to the first end of the boost pump 13, and the second end of the clean water return pipe 05 is connected to the clean water container 12; the reflux solenoid valve 31 and the reflux check valve 30 are arranged on the clean water return pipe 05 in sequence.

[0076] The clean water return pipe 05 may be a water pipe or a pipeline. The reflux check valve 30 may be a check valve to prevent the clean water at the water inlet end of the booster pump 14 from flowing back through the clean water return pipe 05. The reflux solenoid valve 31 is a solenoid valve for controlling the on-off of the clean water return pipe 05.

[0077] The wastewater discharge method provided by the embodiment of the present invention can be applied in Figure 4 In some optional implementations of this embodiment, the wastewater discharge method further includes the following steps S300 to 330:

[0078] S300: When the filtration system 15 prepares purified water and a water flow signal is detected and the water pressure in the pipeline where the purified water container is located is detected to be greater than a preset water outlet pressure, a flushing instruction is received.

[0079] The flushing instruction is an instruction to flush the filter system 15. Specifically, when the flushing instruction is received, the water inlet solenoid valve 13 is controlled to be closed and the return solenoid valve 31 is opened, so that the clean water flows back to the water inlet end of the booster pump 14 through the clean water return pipe 05 for boosting, and then serves as the water inlet source of the filter system 15.

[0080] Among them, when the water pressure of the pipeline where the water purification container is located is greater than the preset water outlet pressure, it means that the purified water in the water purification container meets the requirements of purified water flushing, that is, the purified water in the water purification container can be returned to the first end of the booster pump through the purified water return pipe for boosting, and then used as the water source of the filtration system. When the water pressure of the pipeline where the water purification container is located is less than the preset water outlet pressure, it means that the purified water in the water purification container does not meet the requirements of purified water flushing. That is, the preset water outlet pressure is used to determine whether the purified water in the water purification container meets the requirements of purified water flushing.

[0081] S310: In response to the flushing instruction, the water inlet solenoid valve 13 is controlled to be closed and the return solenoid valve 31 is controlled to be opened.

[0082] S320: Control the filter system 15 to perform cyclic flushing and record the number of flushing times of the filter system, wherein, during the cyclic flushing process, the clean water in the clean water container 12 and the clean water generated by the filter system 15 flow back to the first end of the booster pump 14 through the clean water return pipe 05, so that the booster pump 14 pressurizes the returned clean water and then flushes the filter system 15, and the flushing waste water discharged from the filter system 15 enters the tap water discharge pipe 01.

[0083] Specifically, when the water flow signal is detected, it means that the tap is turned on, and the flushing waste water discharged by the filtration system 15 can enter the tap water drainage pipe 01 and mix with the tap water before being discharged through the tap at the end of the tap water drainage pipe 01.

[0084] In an optional embodiment, when the filtration system 15 prepares clean water and no water flow signal is detected, a flushing instruction is received, and in response to the flushing instruction, the water inlet solenoid valve 13 is controlled to be closed and the return solenoid valve 31 is controlled to be opened, so as to control the filtration system to be flushed. At the same time, the flushing waste water discharged by the filtration system 15 can be controlled to be discharged into the waste water container 24, or the flushing waste water discharged by the filtration system 15 can be controlled to be discharged into the special scenario discharge pipe 04 to mix with tap water and then be discharged through the third end of the special scenario discharge pipe 04.

[0085] S330: When the flushing times reach the preset times, the boost pump 14 is controlled to be closed, the filter system 15 is controlled to be closed, and the reflux solenoid valve 31 is controlled to be closed.

[0086] Specifically, the filter system 15 is controlled to perform cyclic flushing, and the number of flushing times of the filter system during the cyclic flushing process is recorded, until the number of flushing times reaches the preset number, the booster pump 14 is controlled to be turned off, the filter system 15 is turned off, and the reflux solenoid valve 31 is controlled to be turned off, so that the filter system 15 stops preparing clean water.

[0087] In this embodiment, by using clean water to flush the filter system 15, the salt concentration on the surface of the reverse osmosis filter membrane in the filter system 15 can be reduced, and the clogging of the reverse osmosis filter membrane due to scaling can be slowed down, thereby extending the service life of the filter system 15. The flushing wastewater generated each time the filter system 15 is flushed is discharged into the tap water discharge pipe 01 and mixed with tap water before being discharged, thereby avoiding the concentrated water from being directly discharged into the sewer, thereby greatly reducing the discharge of concentrated water, improving the utilization rate of concentrated water, and reducing the waste of water resources.

[0088] Figure 5 A schematic diagram of an application environment of a wastewater discharge method in another embodiment is provided, such as Figure 5 As shown, the water purifier also includes a clean water discharge pipe 06, a first clean water discharge solenoid valve 40 and a clean water discharge one-way valve 41. The first end of the clean water discharge pipe 06 is connected to the pipe 02 where the clean water container 12 is located, and the second end of the clean water discharge pipe 06 is connected to the connecting pipe between the concentrated water discharge end of the filtration system 15 and the tap water discharge pipe 01. The first clean water discharge solenoid valve 40 and the clean water discharge one-way valve 41 are sequentially arranged in the clean water discharge pipe.

[0089] The first purified water discharge solenoid valve 40 may be a solenoid valve for controlling the on-off of the purified water discharge pipe 06 . The purified water discharge check valve 41 may be a check valve for preventing the concentrated water from flowing back through the purified water discharge pipe 06 .

[0090] The wastewater discharge method provided by the embodiment of the present invention can be applied in Figure 5 In some optional implementations of this embodiment, step S100, that is, upon receiving the water purification signal of the filtration system 15, obtaining a concentrated water discharge mode, wherein the concentrated water discharge mode indicates a discharge mode of the concentrated water generated by the filtration system 15, includes the following steps S110 to S112:

[0091] S110: In response to the purified water preparation signal, the latest emptying time of the purified water container 12 is obtained.

[0092] Among them, the clean water preparation signal may include the clean water preparation time of the filtration system. Optionally, the clean water preparation time may be the time when the filtration system 15 is started. The latest emptying time is the latest time to empty the clean water in the clean water container 12. Exemplarily, assuming that the clean water preparation time is 14:47 on August 2, 2023, it means that the filtration system 15 is started at 14:47 on August 2, 2023. The clean water emptying time in the water purifier closest to 14:47 on August 2, 2023 is 14:47 on July 29, 2023, and the latest emptying time is 14:47 on July 29, 2023.

[0093] S111: Calculate the time difference between the purified water preparation time in the purified water preparation signal and the latest emptying time.

[0094] S112: If the time difference is greater than the preset time threshold, the first clean water discharge solenoid valve 40 is controlled to open so that the clean water in the clean water container is discharged through the clean water discharge pipe until the water pressure in the pipe where the clean water container 12 is located is less than the preset water pressure, and the first clean water discharge solenoid valve 40 is controlled to close.

[0095] Exemplarily, assuming that the clean water preparation time is 14:47 on August 2, 2023, the latest emptying time is 14:47 on July 29, 2023, and the preset time threshold is 3 days, then the time difference is 4 days, that is, the time difference is greater than the preset time threshold, and the first clean water discharge solenoid valve 40 is controlled to open so that the clean water in the clean water container 12 is discharged through the clean water discharge pipe 06 until the water pressure in the pipe where the clean water container 12 is located is less than the preset water pressure, that is, the clean water in the clean water container 12 is emptied, and the first clean water discharge solenoid valve 40 is controlled to close.

[0096] Figure 6 A schematic diagram of an application environment of a wastewater discharge method in another embodiment is provided, such as Figure 6 As shown, the water purifier further includes a second clean water discharge solenoid valve 50 and a water flow sensor 51. The second clean water discharge solenoid valve 50 is arranged at the water inlet end of the clean water container, and the water flow sensor 51 is arranged at the clean water discharge end of the filtration system.

[0097] The water flow sensor is used to detect and accumulate the flow rate of the clean water flowing out of the filter system 15 . The second clean water discharge solenoid valve 50 is a solenoid valve used to control the clean water generated by the filter system 15 to be discharged through the clean water discharge pipe 06 .

[0098] The wastewater discharge method provided by the embodiment of the present invention can be applied in Figure 6In the application environment shown. In some optional implementations of this embodiment, after step S112, that is, if the time difference is greater than the preset time threshold, the first clean water discharge solenoid valve 40 is controlled to open, so that the clean water in the clean water container is discharged through the clean water discharge pipe until the water pressure in the pipe where the clean water is located is less than the preset water pressure. After the first clean water discharge solenoid valve 40 is controlled to be closed, the wastewater emptying method further includes the following steps S1120 to S1122:

[0099] S1120: During the process of the filtration system preparing the clean water, the flow rate of the clean water prepared by the filtration system 15 is accumulated through the water flow sensor 50 to obtain the clean water flow rate.

[0100] S1122: If the purified water flow rate reaches the rated water flow rate, a purified water quality reminder signal is generated according to the purified water flow rate.

[0101] The purified water quality reminder signal may be a signal indicating that the purified water quality may not be suitable for drinking, and reminding the user to replace the reverse osmosis filter element membrane in the filtration system 15. The rated water flow rate may be the amount of purified water prepared as specified by the filtration system 15. When the purified water flow rate reaches the rated water flow rate, it means that the reverse osmosis filter element membrane in the filtration system 15 needs to be replaced, and the purified water prepared at this time may not be suitable for drinking. Based on this, a purified water quality reminder signal is generated according to the purified water flow rate to remind the user to replace the reverse osmosis filter element in the filtration system 15.

[0102] S1123: In response to the purified water quality reminder signal, the water inlet solenoid valve 13, the boost pump 14 and the filtration system 15 are controlled to be closed, so that the filtration system 15 stops preparing the purified water, and the second purified water discharge solenoid valve 50 is controlled to be closed and the first purified water discharge solenoid valve 40 is controlled to be opened, so that the purified water prepared by the filtration system is discharged into the concentrated water discharge pipe 03.

[0103] It should be particularly noted that, in response to the purified water quality reminder signal, the water inlet solenoid valve 13, the boost pump 14 and the filtration system 15 are controlled to be closed, so that the filtration system 15 stops preparing the purified water. There is a certain time difference in the process of the filtration system 15 stopping preparing the purified water. During this time difference, the purified water prepared by the filtration system 15 may not be suitable for drinking. Based on this, the second purified water discharge solenoid valve 50 is controlled to be closed and the first purified water discharge solenoid valve 40 is controlled to be opened, so that the purified water prepared by the filtration system is discharged into the concentrated water discharge pipe 03.

[0104] In this embodiment, by judging whether the clean water flow rate reaches the rated water flow rate, a clean water quality reminder signal is generated according to the clean water flow rate. In response to the clean water quality reminder signal, the water inlet solenoid valve 13, the boost pump 14 and the filtration system 15 are controlled to be closed, so that the filtration system 15 stops preparing the clean water. There is a certain time difference in the process of the filtration system 15 stopping preparing the clean water. During this time difference, the clean water prepared by the filtration system 15 may not be suitable for drinking. Based on this, the second clean water discharge solenoid valve 50 is controlled to be closed and the first clean water discharge solenoid valve 40 is controlled to be opened, so that the clean water prepared by the filtration system 15 is discharged to the concentrated water discharge pipe 03. On the one hand, the drinking safety of the clean water can be further improved, and on the other hand, the clean water that does not meet the drinking water requirements can be discharged to the concentrated water discharge pipe 03 in time.

[0105] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0106] In one embodiment, a wastewater discharge device is provided, and the device is applied to a water purifier, and the water purifier includes a tap water flow sensor 10, a first pressure sensor 11, a clean water container 12, a water inlet solenoid valve 13, a booster pump 14 and a filtration system 15, one end of the water inlet solenoid valve 13 is connected to the tap water outlet aa, the other end of the water inlet solenoid valve 13 is connected to one end of the booster pump 14, the water inlet end of the filtration system 15 is connected to the other end of the booster pump 14, the clean water discharge end of the filtration system 15 is connected to the clean water container 12, and the concentrated water discharge end of the filtration system 15 is connected to the tap water discharge pipe 01, the tap water flow sensor 10 is arranged on the tap water discharge pipe 01, and is used to detect the water flow signal of the tap water discharge pipe 01, and the first pressure sensor 11 is used to detect the water pressure of the pipe 02 where the clean water container 12 is located; the wastewater discharge device corresponds one-to-one with the wastewater discharge method in the above-mentioned embodiment. Please refer to Figure 7 As shown, the wastewater discharge device includes a discharge mode acquisition module 400 and a discharge module 500, and the functional modules are described in detail as follows:

[0107] The discharge mode acquisition module 400 is used to acquire a concentrated water discharge mode upon receiving a water purification signal from the filtering system 15 , wherein the concentrated water discharge mode indicates a discharge method of the concentrated water generated by the filtering system 15 .

[0108] The concentrated water discharge module 500 is used to control the filtering system 15 to discharge the concentrated water according to the concentrated water discharge mode.

[0109] In this embodiment, the concentrated water discharge mode is obtained by receiving the purified water preparation signal of the filter system 15, and the concentrated water discharge mode represents the discharge mode of the concentrated water generated by the filter system 15; according to the concentrated water discharge mode, the filter system 15 is controlled to discharge the concentrated water. In this application, the purified water preparation signal received by the filter system 15 is used as the time node for obtaining the concentrated water discharge mode, so as to timely control the discharge mode of the concentrated water generated by the filter system 15, and avoid directly discharging the concentrated water into the sewer, thereby greatly reducing the discharge of concentrated water, improving the utilization rate of concentrated water, and reducing the waste of water resources.

[0110] Optionally, the concentrated water discharge module 500 includes:

[0111] A mixed discharge scenario determination submodule is used to determine a target mixed discharge scenario according to the mixed discharge scenario determination instruction if the concentrated water discharge mode is a mixed discharge mode and if the water flow signal is detected during the process of the filtration system preparing the clean water and a mixed discharge scenario determination instruction is received, wherein the mixed discharge mode is to discharge the tap water mixed with the concentrated water.

[0112] The mixing ratio determination submodule is used to obtain the tap water mixing ratio corresponding to the target mixed discharge scenario.

[0113] The concentrated water discharge submodule is used to control the concentrated water discharged from the filtering system 15 to enter the tap water discharge pipe 01 based on the mixing ratio of the tap water.

[0114] Optionally, the concentrated water discharge submodule includes:

[0115] The signal acquisition unit is used to acquire the water outlet setting signal of the tap water drainage pipe 01, and the water outlet setting signal carries the target tap water flow rate.

[0116] The discharge speed determining unit is used to determine the concentrated water discharge speed based on the diameter of the tap water discharge pipe 01, the diameter of the concentrated water discharge end, the target tap water flow rate and the tap water mixing ratio.

[0117] The concentrated water discharge unit is used to control the concentrated water discharged from the filtering system 15 to enter the tap water discharge pipe 01 based on the concentrated water discharge speed.

[0118] Optionally, the water purifier also includes a first wastewater solenoid valve 20, a second wastewater solenoid valve 21, a concentrated water discharge pipe 03, a special scene discharge pipe 04, a tap water reflux check valve 22, a second pressure sensor 23 and a wastewater container 24; the first end of the concentrated water discharge pipe 03 is connected to the concentrated water discharge port of the filtration system 15, the first end of the special scene discharge pipe 04 is connected to the tap water outlet aa, the second end of the concentrated water discharge pipe 03 is connected to the second end of the special scene discharge pipe 04, the second pressure sensor 23, the wastewater container 24 and the first wastewater solenoid valve 20 are sequentially arranged in the concentrated water discharge pipe 03, the tap water reflux check valve 22 is arranged in the special scene discharge pipe 04, and is used to prevent the concentrated water from flowing back to the tap water outlet aa, and the second wastewater solenoid valve 21 is arranged in the special scene discharge pipe 04. Based on this, the concentrated water discharge module 500 also includes:

[0119] The mode switching module is used to switch the concentrated water discharge mode to the pure concentrated water discharge mode if the concentrated water discharge mode is the mixed discharge mode and if the water flow signal is not detected during the process of the filtration system 15 preparing purified water.

[0120] The instruction acquisition judgment module is used to determine whether a pure concentrated water discharge scenario determination instruction is obtained.

[0121] The discharge scenario determination module is used to determine the target concentrated water discharge scenario according to the pure concentrated water discharge scenario determination instruction, and based on the target concentrated water discharge scenario, control the concentrated water discharged by the filtration system 15 to enter the special scenario discharge pipe 04 corresponding to the target concentrated water discharge scenario.

[0122] The control module is used to determine whether the water pressure of the concentrated water discharge pipeline 03 is less than a preset pressure threshold, and if not, to control the concentrated water discharged by the filtration system to enter the wastewater container.

[0123] Optionally, the water purifier includes a clean water return pipe 05, a return check valve 30 and a return solenoid valve 31; the first end of the clean water return pipe 05 is connected to the first end of the booster pump 14, and the second end of the clean water return pipe 05 is connected to the clean water container 12; the return solenoid valve 30 and the return check valve 31 are sequentially arranged on the clean water return pipe 05. Based on this, the wastewater discharge device also includes:

[0124] The flushing instruction receiving module is used to receive a flushing instruction when the filtering system 15 prepares purified water and detects a water flow signal and detects that the water pressure in the pipeline 02 where the purified water container 12 is located is greater than a preset water outlet pressure.

[0125] The flushing instruction response module is used to control the water inlet solenoid valve 13 to close and the return solenoid valve 31 to open in response to the flushing instruction.

[0126] A flushing module is used to control the filter system 15 to perform cyclic flushing and record the number of flushing times of the filter system 15, wherein during the flushing process, the clean water in the clean water container 12 and the clean water generated by the filter system 15 flow back to the first end of the booster pump 14 through the clean water return pipe 05, so that the booster pump 14 pressurizes the returned clean water to flush the filter system 15, and the flushing waste water discharged from the filter system 15 enters the tap water discharge pipe 01.

[0127] The flushing times judging module is used to control the booster pump 14 to be turned off, the filter system 15 to be turned off, and the reflux solenoid valve 31 to be turned off when the flushing times reach a preset times.

[0128] Optionally, the water purifier further includes a clean water discharge pipe 06, a first clean water discharge solenoid valve 40 and a clean water discharge one-way valve 41, wherein the first end of the clean water discharge pipe 06 is connected to the pipe 02 where the clean water container 12 is located, and the second end of the clean water discharge pipe 06 is connected to the connecting pipe between the concentrated water discharge end of the filtration system 15 and the tap water discharge pipe 01, and the first clean water discharge solenoid valve 40 and the clean water discharge one-way valve 41 are sequentially arranged in the clean water discharge pipe 06. Based on this, the discharge mode acquisition module 400 includes:

[0129] The emptying time acquisition submodule is used to respond to the purified water preparation signal and acquire the latest emptying time of the purified water container 12.

[0130] The time difference calculation submodule is used to calculate the time difference between the purified water preparation time in the purified water preparation signal and the latest emptying time.

[0131] The time difference judgment submodule is used to control the first clean water discharge solenoid valve 40 to open if the time difference is greater than a preset time threshold, so that the clean water in the clean water container 12 is discharged through the clean water discharge pipe 06 until the water pressure in the pipe 02 where the clean water container 12 is located is less than the preset water pressure, and then control the first clean water discharge solenoid valve 40 to close.

[0132] Optionally, the water purifier further includes a second purified water discharge solenoid valve 50 and a water flow sensor 51, wherein the second purified water discharge solenoid valve 50 is arranged at the water inlet end of the purified water container 12, and the water flow sensor 51 is arranged at the purified water discharge end of the filtering system 15. Based on this, the time difference judgment submodule includes:

[0133] The flow accumulation unit is used to accumulate the flow of the clean water prepared by the filtration system 15 through the water flow sensor 51 during the process of the filtration system 15 preparing the clean water, so as to obtain the clean water flow.

[0134] The reminder signal generating unit is used to generate a purified water quality reminder signal according to the purified water flow rate if the purified water flow rate reaches the rated water flow rate.

[0135] The reminder signal response unit is used to respond to the purified water quality reminder signal, control the water inlet solenoid valve 13 to close, the boost pump 14 to close and the filtration system 15 to close, so that the filtration system 15 stops preparing the purified water, and control the second purified water discharge solenoid valve 50 to close and the first purified water discharge solenoid valve 40 to open, so that the purified water prepared by the filtration system 15 is discharged into the concentrated water discharge pipe 03.

[0136] In one embodiment, a water purifier is provided, and its internal structure diagram can be as follows: Figure 8 As shown. The water purifier includes a processor, a memory, a network interface, a database, a tap water flow sensor, a first pressure sensor, a clean water container, a water inlet solenoid valve, a booster pump and a filtration system connected through a system bus. Among them, the processor of the water purifier is used to provide computing and control capabilities. The memory of the water purifier includes a non-volatile and / or volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the water purifier is used to communicate with an external client through a network connection. When the computer program is executed by the processor, it realizes the functions or steps of a wastewater discharge method.

[0137] In one embodiment, a water purifier is proposed, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and also comprising a tap water flow sensor 10, a first pressure sensor 11, a clean water container 12, a water inlet solenoid valve 13, a booster pump 14, and a filter system 15. One end of the water inlet solenoid valve 13 is connected to the tap water outlet aa, the other end of the water inlet solenoid valve aa is connected to one end of the booster pump 14, the water inlet end of the filter system 15 is connected to the other end of the booster pump 14, the clean water discharge end of the filter system 15 is connected to the clean water container 12, the concentrated water discharge end of the filter system 15 is connected to the tap water discharge pipe 01, the tap water flow sensor 10 is arranged on the tap water discharge pipe 01, and is used to detect the water flow signal of the tap water discharge pipe 01, and the first pressure sensor 11 is used to detect the water pressure of the pipe where the clean water container 12 is located. When the processor executes the computer program, the following steps are implemented:

[0138] After receiving the water purification signal from the filtering system 15 , the concentrated water discharge mode is acquired, and the concentrated water discharge mode indicates the discharge method of the concentrated water generated by the filtering system 15 .

[0139] According to the concentrated water discharge mode, the filtering system 15 is controlled to discharge the concentrated water.

[0140] In this embodiment, the concentrated water discharge mode is obtained by receiving the purified water preparation signal of the filter system 15, and the concentrated water discharge mode represents the discharge mode of the concentrated water generated by the filter system 15; according to the concentrated water discharge mode, the filter system 15 is controlled to discharge the concentrated water. In this application, the purified water preparation signal received by the filter system 15 is used as the time node for obtaining the concentrated water discharge mode, so as to timely control the discharge mode of the concentrated water generated by the filter system 15, and avoid directly discharging the concentrated water into the sewer, thereby greatly reducing the discharge of concentrated water, improving the utilization rate of concentrated water, and reducing the waste of water resources.

[0141] In one embodiment, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0142] After receiving the water purification signal from the filtering system 15 , a concentrated water discharge mode is acquired, where the concentrated water discharge mode indicates a discharge method of the concentrated water generated by the filtering system 15 .

[0143] According to the concentrated water discharge mode, the filtering system 15 is controlled to discharge the concentrated water.

[0144] In this embodiment, the concentrated water discharge mode is obtained by receiving the purified water preparation signal of the filter system 15, and the concentrated water discharge mode represents the discharge mode of the concentrated water generated by the filter system 15; according to the concentrated water discharge mode, the filter system 15 is controlled to discharge the concentrated water. In this application, the purified water preparation signal received by the filter system 15 is used as the time node for obtaining the concentrated water discharge mode, so as to timely control the discharge mode of the concentrated water generated by the filter system 15, and avoid directly discharging the concentrated water into the sewer, thereby greatly reducing the discharge of concentrated water, improving the utilization rate of concentrated water, and reducing the waste of water resources.

[0145] It should be noted that the functions or steps that can be implemented by the computer-readable storage medium or the water purifier can be found in the relevant descriptions of the server side and the client side in the aforementioned method embodiment. To avoid repetition, they will not be described one by one here.

[0146] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0147] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0148] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A wastewater discharge method, characterized in that: The method is applied to a water purifier, which includes a tap water flow sensor, a first pressure sensor, a clean water container, a water inlet solenoid valve, a booster pump and a filtration system, one end of the water inlet solenoid valve is connected to a tap water outlet, the other end of the water inlet solenoid valve is connected to one end of the booster pump, the water inlet end of the filtration system is connected to the other end of the booster pump, the clean water discharge end of the filtration system is connected to the clean water container, the concentrated water discharge end of the filtration system is connected to a tap water discharge pipe, the tap water flow sensor is arranged on the tap water discharge pipe, and is used to detect a water flow signal of the tap water discharge pipe, and the first pressure sensor is used to detect the water pressure of the pipe where the clean water container is located; the method includes: Upon receiving the water purification signal of the filtration system, obtaining a concentrated water discharge mode, wherein the concentrated water discharge mode indicates a discharge method of the concentrated water generated by the filtration system; According to the concentrated water discharge mode, the filtering system is controlled to discharge the concentrated water.

2. The wastewater discharge method according to claim 1, characterized in that: According to the concentrated water discharge mode, controlling the filtering system to discharge the concentrated water comprises: If the concentrated water discharge mode is a mixed discharge mode, during the process of the filtration system preparing the purified water, if the water flow signal is detected and a mixed discharge scenario determination instruction is received, a target mixed discharge scenario is determined according to the mixed discharge scenario determination instruction, wherein the mixed discharge mode is to discharge the tap water and the concentrated water after mixing; Obtaining the tap water mixing ratio corresponding to the target mixed discharge scenario; Based on the mixing ratio of the tap water, the concentrated water discharged from the filtering system is controlled to enter the tap water drainage pipe.

3. The wastewater discharge method according to claim 2, characterized in that: The method of controlling the concentrated water discharged from the filtration system to enter the tap water drainage pipe based on the tap water mixing ratio includes: Acquire a water outlet setting signal of the tap water drainage pipe, wherein the water outlet setting signal carries a target tap water flow rate; Determining a concentrated water discharge rate based on the diameter of the tap water discharge pipe, the diameter of the concentrated water discharge end, the target tap water flow rate, and the tap water mixing ratio; Based on the concentrated water discharge rate, the concentrated water discharged from the filtration system is controlled to enter the tap water drainage pipe.

4. The wastewater discharge method according to claim 1, characterized in that: The water purifier also includes a first wastewater solenoid valve, a second wastewater solenoid valve, a concentrated water discharge pipe, a special scenario discharge pipe, a tap water reflux check valve, a second pressure sensor and a wastewater container; the first end of the concentrated water discharge pipe is connected to the concentrated water discharge port of the filtration system, the first end of the special scenario discharge pipe is connected to the tap water outlet, the second end of the concentrated water discharge pipe is connected to the second end of the special scenario discharge pipe, the second pressure sensor, the wastewater container and the first wastewater solenoid valve are sequentially arranged on the concentrated water discharge pipe, the tap water reflux check valve is arranged on the special scenario discharge pipe to prevent the concentrated water from flowing back to the tap water outlet, and the second wastewater solenoid valve is arranged on the special scenario discharge pipe; According to the concentrated water discharge mode, controlling the filtering system to discharge the concentrated water comprises: If the concentrated water discharge mode is a mixed discharge mode, during the process of preparing purified water by the filtration system, if the water flow signal is not detected, the concentrated water discharge mode is switched to a pure concentrated water discharge mode; Determine whether a pure concentrated water discharge scenario determination instruction is obtained; If so, determining the target concentrated water discharge scenario according to the pure concentrated water discharge scenario determination instruction, and based on the target concentrated water discharge scenario, controlling the concentrated water discharged by the filtration system to enter the special scenario discharge pipeline corresponding to the target concentrated water discharge scenario; If not, determine whether the water pressure of the concentrated water discharge pipe is less than the preset pressure threshold. If the water pressure of the concentrated water discharge pipe is less than the preset pressure threshold, control the concentrated water discharged by the filtration system to enter the wastewater container.

5. The wastewater discharge method according to claim 1, characterized in that: The water purifier comprises a clean water return pipe, a return check valve and a return solenoid valve; the first end of the clean water return pipe is connected to the first end of the booster pump, and the second end of the clean water return pipe is connected to the clean water container; the return solenoid valve and the return check valve are sequentially arranged on the clean water return pipe; The method further comprises: When the filtration system prepares purified water and a water flow signal is detected and the water pressure in the pipeline where the purified water container is located is detected to be greater than a preset water outlet pressure, a flushing instruction is received; In response to the flushing instruction, controlling the water inlet solenoid valve to close and the return solenoid valve to open; Controlling the filter system to perform cyclic flushing and recording the flushing times of the filter system, wherein, during the cyclic flushing process, the clean water in the clean water container and the clean water generated by the filter system flow back to the first end of the booster pump through the clean water return pipe, so that the booster pump pressurizes the returned clean water and then flushes the filter system, and the flushing waste water discharged from the filter system enters the tap water discharge pipe; When the flushing times reach the preset times, the booster pump, the filter system and the reflux solenoid valve are controlled to be closed.

6. The wastewater discharge method according to claim 1, characterized in that: The water purifier further comprises a clean water discharge pipe, a first clean water discharge solenoid valve and a clean water discharge one-way valve, wherein the first end of the clean water discharge pipe is connected to the pipe where the clean water container is located, the second end of the clean water discharge pipe is connected to the connecting pipe between the concentrated water discharge end of the filtration system and the tap water discharge pipe, and the first clean water discharge solenoid valve and the clean water discharge one-way valve are sequentially arranged on the clean water discharge pipe; The method of obtaining a concentrated water discharge mode upon receiving a water purification signal from the filtration system, wherein the concentrated water discharge mode indicates a discharge method of concentrated water generated by the filtration system, including: In response to the purified water preparation signal, obtaining the latest emptying time of the purified water container; Calculate the time difference between the clean water preparation time in the clean water preparation signal and the latest emptying time; If the time difference is greater than the preset time threshold, the first clean water discharge solenoid valve is controlled to open so that the clean water in the clean water container is discharged through the clean water discharge pipe until the water pressure in the pipe where the clean water container is located is less than the preset water pressure, and the first clean water discharge solenoid valve is controlled to close.

7. The wastewater discharge method according to claim 6, characterized in that: The water purifier further comprises a second purified water discharge solenoid valve and a water flow sensor, wherein the second purified water discharge solenoid valve is arranged at the water inlet end of the purified water container, and the water flow sensor is arranged at the purified water discharge end of the filtration system; If the time difference is greater than a preset time threshold, the clean water discharge solenoid valve is controlled to open and the clean water discharge one-way valve is controlled to open, so that the clean water in the clean water container is discharged through the clean water discharge pipe until the water pressure of the clean water discharge pipe is less than a preset water pressure, and the method further includes: In the process of preparing the clean water by the filtration system, the flow rate of the clean water prepared by the filtration system is accumulated by the water flow sensor to obtain the clean water flow rate; If the clean water flow rate reaches the rated water flow rate, a clean water quality reminder signal is generated according to the clean water flow rate; In response to the purified water quality reminder signal, the water inlet solenoid valve, the boosting pump and the filtration system are controlled to be closed, so that the filtration system stops preparing the purified water, and the second purified water discharge solenoid valve is controlled to be closed and the first purified water discharge solenoid valve is controlled to be opened, so that the purified water prepared by the filtration system is discharged into the concentrated water discharge pipe.

8. A wastewater discharge device, characterized in that: The device is applied to a water purifier, which includes a tap water flow sensor, a first pressure sensor, a clean water container, a water inlet solenoid valve, a booster pump and a filtration system, one end of the water inlet solenoid valve is connected to a tap water outlet, the other end of the water inlet solenoid valve is connected to one end of the booster pump, the water inlet end of the filtration system is connected to the other end of the booster pump, the clean water discharge end of the filtration system is connected to the clean water container, the concentrated water discharge end of the filtration system is connected to a tap water discharge pipe, the tap water flow sensor is arranged on the tap water discharge pipe, and is used to detect a water flow signal of the tap water discharge pipe, and the first pressure sensor is used to detect the water pressure of the pipe where the clean water container is located; The device comprises: a discharge mode acquisition module, configured to acquire a concentrated water discharge mode upon receiving a water purification signal from the filtration system, wherein the concentrated water discharge mode indicates a discharge method of concentrated water generated by the filtration system; The discharge module is used to control the filtering system to discharge the concentrated water according to the concentrated water discharge mode.

9. A water purifier, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: Also includes: A tap water flow sensor, a first pressure sensor, a clean water container, a water inlet solenoid valve, a booster pump and a filtration system, wherein one end of the water inlet solenoid valve is connected to a tap water outlet, the other end of the water inlet solenoid valve is connected to one end of the booster pump, the water inlet end of the filtration system is connected to the other end of the booster pump, the clean water discharge end of the filtration system is connected to the clean water container, the concentrated water discharge end of the filtration system is connected to a tap water discharge pipe, the tap water flow sensor is arranged on the tap water discharge pipe, and is used to detect a water flow signal of the tap water discharge pipe, and the first pressure sensor is used to detect the water pressure of the pipe where the clean water container is located; When the processor executes the computer program, the steps of the wastewater discharge method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the wastewater discharge method according to any one of claims 1 to 7 are implemented.

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