Water purification system, water purification system control method and storage medium

Abstract

This invention relates to the field of water purification technology, and discloses a water purification system, a water production control method for the water purification system, and a storage medium. The water purification system includes: a raw water inlet; multiple water production pipelines, each connected to the raw water inlet and connected in parallel, with a first filter element connected in series on each water production pipeline. The first filter element has a first inlet, a first outlet, a second inlet, and a second outlet. The first inlet is connected to the raw water inlet, the first outlet is connected to the water production pipeline, the second inlet is connected to pure water, and the second outlet is equipped with a flow meter adapted to acquire flow information from the second outlet; a flow regulating device is located on the water production pipeline; and a controller is communicatively connected to the flow meter, adapted to control the flow regulating device to adjust the flow rate entering the first inlet according to the flow information from the flow meter, so that the filter element fails at a set time. This allows for synchronous failure of filter elements on different branches, facilitating later maintenance and saving filter element replacement costs.

Description

Technical Field

[0001] This invention relates to the field of water purification system technology, specifically to a water purification system, a water purification system control method, and a storage medium. Background Technology

[0002] Water purifiers purify tap water by using a filter cartridge.

[0003] In existing technologies, water purifiers often use multiple low-flow-rate filter cartridges connected in parallel to achieve higher flow rates or to increase flow rates from low to high. However, the different lifespans of the filter cartridges in parallel circuits lead to cartridge replacement issues. If one filter cartridge is replaced simultaneously when another fails, it results in wasted filter replacement costs. If only one filter cartridge is replaced when it fails, and then another is replaced when the other fails, multiple replacements are required, increasing replacement costs and causing inconvenience for later maintenance. Summary of the Invention

[0004] In view of this, the present invention provides a water purification system to solve the problem of asynchronous failure of multiple filter cartridges connected in parallel in the prior art.

[0005] On one hand, the present invention provides a water purification system, comprising: a raw water inlet; multiple water production pipelines respectively connected to the raw water inlet, wherein the multiple water production pipelines are connected in parallel, and a first filter element is connected in series on each of the water production pipelines, the first filter element having a first inlet, a first outlet, a second inlet and a second outlet, the first inlet being connected to the raw water inlet, the first outlet being connected to the water production pipeline, the second inlet being connected to pure water, and the second outlet being equipped with a flow meter adapted to acquire flow information of the second outlet; a flow regulating device disposed on the water production pipeline; and a controller communicatively connected to the flow meter, the controller being adapted to control the flow regulating device to adjust the flow rate entering the first inlet according to the flow information of the flow meter so that the filter element fails at a set time.

[0006] The beneficial effect is that by connecting multiple water production pipelines to the raw water inlet, water production can be completed simultaneously in multiple pipelines, thus improving water production efficiency. A flow meter is installed on the water line connecting the second outlet to the pressure tank. The flow meter measures the flow rate of water flowing out of the second outlet and sends the flow information to the controller. The controller, based on the flow information from the flow meter, controls the flow regulating device to adjust the flow rate at the first inlet, thereby ensuring that the first filter element fails within a set time.

[0007] In one optional embodiment, the flow regulating device includes a diverter valve having an inlet valve and a plurality of outlet valves. The inlet valve is connected to the inlet, and each outlet valve is connected to a corresponding first inlet. The diverter valve is also communicatively connected to the controller.

[0008] The beneficial effect is that after raw water enters the inlet of the diversion valve, the flow rate at the outlet of the diversion valve is adjusted according to the control command of the controller, allowing the diversion valve to distribute different amounts of water into the corresponding water production pipelines. By adjusting the flow rate into different water production pipelines through the diversion valve, the required amount of water can be precisely controlled.

[0009] In one optional embodiment, the flow regulating device further includes a flow regulating valve disposed on at least one of the water production pipelines, and the flow regulating valve is adapted to regulate the flow rate entering the first water inlet, and the flow regulating valve is communicatively connected to the controller.

[0010] The beneficial effect is that the flow regulating valve can automatically adjust the water flow according to the control command issued by the controller, and by adjusting the flow in one water production pipeline, it can achieve the purpose of adjusting the flow of water entering different water production pipelines.

[0011] In one optional embodiment, the flow regulating device further includes a water pump, which is communicatively connected to the controller. The controller is adapted to control the output power of the water pump according to the flow information of the first outlet to regulate the flow rate of water pumped to the first inlet.

[0012] The beneficial effect is that the flow rate of water that the condensate pump can output varies depending on the output power of the water pump. By adjusting the output power of the water pump to regulate the flow rate of the output water, the need for flow control valves or diverter valves can be eliminated, allowing the water pump to replace flow control valves and throttle valves.

[0013] In one optional embodiment, the water purification system includes a first filter element, which includes a first filter element and a second filter element. The first filter element has a first water inlet and a first water outlet, and the second filter element has a second water inlet and a second water outlet.

[0014] The beneficial effect is that by integrating the first filter element and the second filter element into the first filter element, the first filter element can become a composite filter element. Only one housing is needed to set two filter elements, thereby saving installation space and making the overall structure more compact.

[0015] In one optional embodiment, the water purification system further includes a second filter element connected in series in the water production pipeline and located downstream of the second filter element. The first outlet is connected to the inlet of the second filter element, and the second inlet is connected to the outlet of the second filter element.

[0016] The beneficial effect is that the second filter cartridge can further filter the water, making the filtered water drinkable directly.

[0017] On the other hand, a water production control method for a water purification system is also provided, including:

[0018] Obtain the flow rate information of the second outlet of the first filter element;

[0019] The flow rate is adjusted by controlling the flow regulating device according to the flow information to regulate the flow rate entering the first inlet of the first filter element;

[0020] The first inlet is suitable for receiving raw water, and the second outlet is suitable for discharging pure water.

[0021] The beneficial effect is that the flow rate of water flowing out of the second outlet can be measured by the flow meter, and the flow meter sends the flow information to the controller. The controller controls the flow regulating device to adjust the flow rate of the first inlet according to the flow information of the flow meter, so that the first filter element can be deactivated within a set time.

[0022] In one optional embodiment, the water purification system's water production control method further includes:

[0023] The filter attenuation coefficient on the branch is calculated based on the flow information.

[0024] The inlet flow rate ratio of the flow regulating device is adjusted according to the attenuation coefficient.

[0025] The beneficial effects are that by calculating the filter cartridge attenuation coefficient on the branch line based on the flow information, and adjusting the inlet flow ratio of the flow regulating device according to the attenuation coefficient, the process of obtaining flow information is simplified, and the overall calculation is simple, reliable and accurate.

[0026] In one optional implementation, adjusting the inlet flow rate ratio of the flow regulating device according to the attenuation coefficient specifically includes:

[0027] If the attenuation coefficient is lower than the lower limit of the set threshold, then no flow rate adjustment is required;

[0028] If the attenuation coefficient is higher than the lower limit of the set threshold, the flow rate of the corresponding first filter element is reduced to decrease the load on the first filter element.

[0029] The beneficial effect is that by combining the parameters of flow meters on different water production pipelines, the filter element attenuation coefficient is calculated through a specific algorithm to adjust the inlet flow ratio of the branch so that the filter element attenuation coefficient is within the set value range. Ultimately, the synchronous failure of filter elements with different lifespans can be achieved, which facilitates later maintenance and saves filter element replacement costs.

[0030] On the other hand, a storage medium is also provided, storing a computer program that, when executed by a processor, implements the steps of the water production control method of any of the water purification systems described in the present invention.

[0031] The beneficial effect is that, since the storage medium is used to execute the water production control method of the above-mentioned water purification system, the storage medium has all the beneficial effects of the water production control method of the above-mentioned water purification system, which will not be repeated here. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram illustrating the working principle of a water purification system according to an embodiment of the present invention.

[0034] Figure 2 This is a schematic diagram illustrating the working principle of another water purification system according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram illustrating the working principle of another water purification system according to an embodiment of the present invention.

[0036] Figure 4 This is a schematic diagram illustrating the working principle of another water purification system according to an embodiment of the present invention;

[0037] Figure 5 This is a control block diagram of a water purification system according to an embodiment of the present invention;

[0038] Figure 6 This is a flowchart of a water purification system water production control method according to an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100. Water purification system;

[0041] 110. Yuanshuikou;

[0042] 120. Water supply pipeline;

[0043] 130. First filter element;

[0044] 1301, First Inlet;

[0045] 1302, First outlet;

[0046] 1303, Second Inlet;

[0047] 1304, Second outlet;

[0048] 140. Flow meter;

[0049] 150. Flow regulating device;

[0050] 151. Diverter valve; 152. Flow regulating valve;

[0051] 160. Second filter element;

[0052] 171. Check valve; 172. Inlet valve; 173. Wastewater solenoid valve;

[0053] 180. Pressure stabilizing pump;

[0054] 190. Pressure tank;

[0055] 200. Controller. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] As users' demands for the health and safety of drinking water increase, water purifiers are gaining popularity. Water purifiers purify tap water using filter cartridges. Low-flow water purifiers have a slow water production rate, resulting in long waiting times for users and a poor user experience; high-flow water purifiers are the industry trend, providing instant drinking water.

[0058] Currently, the maximum flow rate of a single filter cartridge in the industry is 1200G. To achieve higher flow rates for water purification or to increase flow rates from low to high, multiple low-flow filter cartridges are often used in parallel. However, the different lifespans of filter cartridges in parallel circuits lead to cartridge replacement issues. If one filter cartridge fails and another is replaced simultaneously, it results in wasted filter replacement costs.

[0059] If only one filter cartridge is replaced when it fails, and another is replaced when the next fails, multiple replacements are required, increasing replacement costs and causing inconvenience for later maintenance. Therefore, it is necessary to find a method to achieve synchronized filter cartridge failure.

[0060] The lifespan of a filter element is negatively correlated with the flow rate. The lower the flow rate, the longer the filter element lifespan. Conversely, a higher flow rate accelerates membrane fouling, leading to a shorter filter element lifespan.

[0061] Membrane fouling can be reflected by the filter cartridge attenuation coefficient; the higher the attenuation coefficient, the more severe the membrane fouling. When the filter cartridge attenuation coefficient is within the set limit, the filter cartridge can fail at the predetermined time. If the filter cartridge attenuation coefficient exceeds the predetermined limit, the filter cartridge will fail prematurely due to increased membrane fouling, resulting in different failure times for the two filter cartridges, which is inconvenient for later maintenance.

[0062] Based on the above analysis, it is necessary to find a way to adjust the filter element load to achieve synchronous filter element failure.

[0063] Current filter cartridge maintenance mainly involves adding spare filter cartridges to extend the filter cartridge maintenance cycle. CN103951094A reports a water purifier that is easy to maintain. By adding a spare filter cartridge branch, the water purifier can be guaranteed to work normally when the short-cycle filter cartridge reaches the end of its life and after-sales maintenance is not timely. However, reading its patent information, adding a spare filter cartridge to the water purifier increases the size of the water purifier.

[0064] CN105692732A reports a method and device for adjusting the lifespan of a water purifier filter cartridge. The maximum lifespan of the filter cartridge is adjusted by detecting the effective TDS value before the membrane and the water production time, reflecting the true lifespan of the filter cartridge to save on replacement costs. However, upon reading its patent information, it only describes the method for detecting the true lifespan of the filter cartridge and does not show how to adjust the lifespan of different filter cartridges to achieve synchronous failure.

[0065] Based on the above analysis, providing a feasible technical solution to adjust the filter cartridge load and achieve synchronous failure of different filter cartridges would be a significant breakthrough. This technical solution aims to propose a method for adjusting the lifespan of water purifier filter cartridges, solving the problem of frequent cartridge replacements caused by different filter cartridge lifespans.

[0066] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.

[0067] like Figure 1 and Figure 5As shown, according to an embodiment of the present invention, a water purification system 100 is provided. The water purification system 100 includes a raw water inlet 110, a plurality of water production pipelines 120, a flow regulating device 150, and a controller 200. The plurality of water production pipelines 120 are respectively connected to the raw water inlet 110 and are connected in parallel. A first filter element 130 is connected in series on each water production pipeline 120. The first filter element 130 has a first inlet 1301, a first outlet 1302, a second inlet 1303, and a second outlet 1304. The first inlet 1301... 1. Connected to the raw water inlet 110, the first water outlet 1302 is connected to the water production pipeline 120, the second water inlet 1303 is connected to pure water, the second water outlet 1304 is equipped with a flow meter 140, the flow meter 140 is adapted to obtain the flow information of the second water outlet 1304, the flow regulating device 150 is installed on the water production pipeline 120, the controller 200 is communicatively connected to the flow meter 140, the controller 200 is adapted to control the flow regulating device 150 to adjust the flow rate entering the first water inlet 1301 according to the flow information of the flow meter 140 so that the filter element fails at a set time.

[0068] The first filter element 130 mentioned above can be a composite filter element. After the water flows out from the raw water inlet 110, it enters the first filter element 130 through the first inlet 1301. The first filter element 130 performs preliminary filtration on the raw water. After the water has completed preliminary filtration, it flows out through the first outlet 1302 and enters the water production pipeline 120 for further purification.

[0069] By connecting multiple water production pipelines 120 to the raw water inlet 110, water production can be completed simultaneously through multiple water production pipelines 120, thereby improving water production efficiency. The water production process of each water production pipeline 120 can be identical.

[0070] The second inlet 1303 of the first filter element 130 is used to introduce pure water. The pure water entering the first filter element 130 can further filter the first filter element 130. The further filtered water flows out through the second outlet 1304 and enters the pressure tank 190 for storage.

[0071] The flow meter 140 is installed on the water path connecting the second outlet 1304 to the pressure tank 190. The flow meter 140 can measure the flow rate of the water flowing out of the second outlet 1304, and the flow meter 140 sends the measurement result, i.e. the flow information, to the controller 200. The controller 200 controls the flow regulating device 150 to adjust the flow rate of the first inlet 1301 according to the flow information of the flow meter 140, so that the first filter element 130 can be deactivated within a set time.

[0072] The controller 200 and the flow meter 140 are collectively referred to as the control module. The flow meter 140 is installed at the outlet end of the first filter element 130 in the control module.

[0073] The controller 200 has a control program for the operation of the whole machine. The controller 200 can also control the start of the pressure stabilizing pump 180, the start and stop of the water inlet solenoid valve of the water purification system 100, and the start and stop time of the wastewater control valve, etc., and can realize the functions of water purification, flushing, drinking water supply, and filter load adjustment of the whole machine.

[0074] After being treated by the first filter element 130, the incoming water enters the deep treatment module through the inlet solenoid valve. The deep treatment module is an RO membrane filter element. The wastewater generated by the deep treatment module is discharged through the wastewater solenoid valve 173. The pure water further treated by the deep treatment module enters the first filter element 130 through the one-way valve 171 and is then supplied to the user for drinking.

[0075] This can be understood as follows: the raw water inlet 110 is diverted into different water treatment pipelines 120, and the water then enters the PP cotton filter element in the front part of the PCB filter element for pretreatment. After the PCB filter element is opened by the inlet solenoid valve and pressurized by the pressure stabilizing pump 180, it enters the RO membrane filter element.

[0076] The RO membrane filter cartridge has two outlets: a pure water outlet and a concentrated water outlet. The concentrated water is discharged through the wastewater solenoid valve 173, while the pure water enters the carbon rod filter cartridge at the rear of the PCB filter cartridge for post-treatment through the one-way valve 171.

[0077] The PCB filter cartridge's outlet is connected to the pure water storage section, i.e., the pressure tank 190, for users to draw water from.

[0078] The raw water inlet 110 is connected to the diversion valve 151. After the diversion valve 151 adjusts the proportion of water entering different branches, the water enters the PP cotton filter element in the front part of the PCB filter element for pretreatment.

[0079] The PCB filter element enters the RO membrane filter element after being opened by the inlet solenoid valve and pressurized by the pressure stabilizing pump 180. The RO membrane filter element has two outlets: a pure water outlet and a concentrated water outlet. The concentrated water is discharged through the wastewater solenoid valve 173, while the pure water enters the carbon rod filter element downstream of the PCB filter element for post-treatment through the one-way valve 171.

[0080] The water outlet of the PCB filter element is connected to the pure water storage section, i.e., the pressure tank 190, for users to draw water.

[0081] Furthermore, such as Figure 2 As shown, the flow regulating device 150 includes a diverter valve 151, which has an inlet valve 172 and multiple outlet valves. The inlet valve 172 is connected to the inlet, and each outlet valve is connected to the corresponding first inlet 1301. The diverter valve 151 is also connected to the controller 200.

[0082] The aforementioned diversion valve 151 can divert the incoming raw water. The diversion valve 151 has one inlet and two outlets. Of course, the diversion valve 151 can also be configured with a corresponding number of outlets depending on the number of water production pipelines 120.

[0083] After the raw water enters the inlet of the diversion valve 151, the flow rate at the outlet of the diversion valve 151 is adjusted according to the control command of the controller 200, so that the diversion valve 151 can distribute different amounts of water into the corresponding water production pipeline 120. By adjusting the flow rate into different water production pipelines 120 through the diversion valve 151, the required amount of water can be precisely controlled.

[0084] Furthermore, such as Figure 3 As shown, the flow regulating device 150 also includes a flow regulating valve 152, which is installed on at least one water production pipeline 120 and is adapted to regulate the flow rate entering the first water inlet 1301. The flow regulating valve 152 is communicatively connected to the controller 200.

[0085] This can be understood as follows: the flow meter 140 sends the detected water flow information to the controller 200, and the controller 200 controls the flow regulating valve 152 to automatically adjust the water flow based on the flow information. This allows the purpose of adjusting the flow on one water pipe 120 to be achieved by adjusting the flow on different water pipes 120. The structure is simple and reliable.

[0086] The flow regulating device 150 also includes a water pump, which is communicatively connected to the controller 200. The controller 200 is adapted to control the output power of the water pump according to the flow information of the first outlet 1302 to regulate the flow rate of water pumped to the first inlet 1301.

[0087] This can be understood as the output power of the water pump being different, and the flow rate of water that the condensate pump can output is also different.

[0088] The flow rate of the output water can be adjusted by regulating the output power of the water pump, which can save the need for the flow regulating valve 152 or the diverting valve 151, allowing the water pump to replace the flow regulating valve 152 and the throttle valve.

[0089] In another embodiment, the water purification system 100 includes a first filter element 130, which includes a first filter element and a second filter element. The first filter element has a first inlet 1301 and a first outlet 1302, and the second filter element has a second inlet 1303 and a second outlet 1304.

[0090] This can be understood as the first filter element being a pre-filter (PAC) and the second filter element being a post-filter (activated carbon).

[0091] The water purification system 100 includes a water purification section, a water storage section, a water production pipeline 120, a flushing pipeline, and related supporting structural components.

[0092] In another embodiment, the water purification system 100 further includes a second filter element 160, which is connected in series with the water supply pipeline 120 and is located downstream of the first filter element. A first outlet 1302 is connected to the inlet of the second filter element 160, and a second inlet 1303 is connected to the outlet of the second filter element 160.

[0093] The second filter element 160 can be a deep treatment filter element.

[0094] The water purification section includes filter cartridges, enabling it to purify raw water to meet drinking water standards. The water purification section can be a single or combined pretreatment module and advanced treatment module. Both the pretreatment and advanced treatment modules can include different filter cartridges.

[0095] The pretreatment module can remove silt, rust, suspended solids, colloids, residual chlorine and other pollutants from the water to achieve preliminary filtration of pollutants. It can be a combination or composite of a primary filter cartridge and an activated carbon filter cartridge. The primary filter cartridge can be a PP cotton filter cartridge, an ultrafiltration filter cartridge, etc., and the activated carbon filter cartridge can be a granular activated carbon, carbon fiber or carbon rod filter cartridge, etc.

[0096] The first filter element 130 mentioned above is a pretreatment module, and the second filter element 160 is a deep treatment module.

[0097] Advanced treatment removes heavy metals, microorganisms, and other pollutants from water to achieve deep filtration. It can be a single or combined form of ultrafiltration, nanofiltration, or reverse osmosis filter cartridges.

[0098] The ambient temperature purified water from the water purification section is transported to the pure water storage section via a power device.

[0099] The first filter element is used as a pretreatment filter element and can be a composite filter element consisting of a PP cotton filter element, a post-treatment filter element, a carbon rod filter element, a PCB filter element, or an RO membrane filter element.

[0100] Raw water sequentially passes through the pre-filter section of the composite PCB filter element, the RO membrane filter element, and the post-filter section of the PCB filter element to complete water treatment. In particular, the filter element can be a composite form combining multiple filter elements or other combined forms.

[0101] The raw water inlet 110 is diverted into different water production pipelines 120. After the water is supplied in a certain proportion, it enters the PP cotton filter element in the front part of the PCB filter element for pretreatment.

[0102] The PCB filter element enters the RO membrane filter element after being opened by the inlet solenoid valve and pressurized by the pressure stabilizing pump 180. The RO membrane filter element has two outlets: a pure water outlet and a concentrated water outlet. The concentrated water is discharged through the wastewater solenoid valve 173, while the pure water enters the carbon rod filter element downstream of the PCB filter element for post-treatment through the one-way valve 171.

[0103] The PCB filter cartridge's outlet is connected to the pure water storage section, i.e., the pressure tank 190, for users to draw water from.

[0104] The water storage section can store a certain volume of pure water to meet the user's need for stable water intake regardless of the filter cartridge's water production status. It can be a water purification tank, pressure tank 190, etc.

[0105] The water purification tank has no driving force; an external driving pump is required to supply the purified water from the tank to the user. The pressure tank 190 has a certain driving force. Under normal circumstances, the user can obtain the required drinking water simply by opening the drinking water tap. The water storage section transports the purified water to the water dispensing point.

[0106] Related supporting structural components may include water pumps, control valves, flow divider valves 151, pressure sensors, etc. Pumps provide driving force for water transportation, including water pumps and booster pumps. Water pumps are only used to drive water transportation, while booster pumps can also increase pressure.

[0107] The control valves include an inlet solenoid valve, a wastewater solenoid valve 173, and a check valve 171. The inlet solenoid valve is used to control the opening and closing of the water circuit. The wastewater solenoid valve 173 has two states: running and flushing. It is used for discharging wastewater when the filter element is in the purification or flushing state.

[0108] The one-way valve 171 is used to control the water flow in a specific direction and prevent backflow. The diversion valve 151 adjusts the proportion of water entering different branches by adjusting the valve opening degree.

[0109] Pressure sensors are used to detect the real-time pressure value at a certain location in a water system.

[0110] The operation of each of the above components is controlled by the overall control module's program. Based on relevant parameters such as flow rate, it can control the pump's start and stop, and the valve's opening and closing to achieve normal water production and flushing functions. The controller 200 logic obtains the real-time filter cartridge attenuation coefficient based on the detected real-time purified water flow rate to adjust the flow ratio entering different branches.

[0111] This system takes two parallel branches as an example, corresponding to filter cartridge flow rates of 600G and 800G. Specifically, the water channels can be in series, parallel, or series-parallel configurations, and there can be 2, 3, etc., branches. Filter cartridges can have the same flow rate, such as 600G, 600G, 800G, 800G, etc.

[0112] The filter elements include composite filter elements consisting of pre-treated filter elements (PP cotton filter elements), post-treated filter elements (carbon rod filter elements), PCB filter elements, and RO membrane filter elements.

[0113] The raw water passes sequentially through the front part of the composite filter element PCB filter element, the RO membrane filter element, and the rear part of the PCB filter element.

[0114] like Figure 5 As shown, the flow meter 140 and the flow regulating device 150 are respectively connected to the controller 200 for communication, so that the controller 200 can control the flow regulating device 150 according to the flow information detected by the flow meter 140.

[0115] like Figure 6 As shown, according to an embodiment of the present invention, in another aspect, a water production control method for a water purification system 100 is also provided, comprising the following steps:

[0116] Step S101: Obtain the flow rate information of the second outlet 1304 of the first filter element 130;

[0117] Step S103: Control the flow regulating device 150 to adjust the flow rate of the first inlet 1301 of the first filter element according to the flow information.

[0118] Water treatment. Specifically, the filter cartridges can be in composite or other combined forms, incorporating multiple filter cartridges into one.

[0119] In another embodiment, the water purification system 100's water production control method further includes:

[0120] Step S201: Calculate the filter attenuation coefficient on the branch line based on the flow information;

[0121] Step S203: Adjust the inlet flow rate ratio of the flow regulating device 150 according to the attenuation coefficient.

[0122] The control module can calculate the filter cartridge attenuation coefficient according to a certain algorithm based on the detected real-time flow rate, and compare it with the set filter cartridge attenuation coefficient to determine whether to adjust the inlet water flow ratio, thereby achieving the purpose of simultaneous failure of multiple filter cartridges.

[0123] Furthermore, adjusting the inlet flow rate ratio of the flow regulating device 150 according to the attenuation coefficient specifically includes the following steps:

[0124] Step S301: If the attenuation coefficient is lower than the lower limit of the set threshold, no flow rate adjustment is required;

[0125] Step S303: If the attenuation coefficient is higher than the lower limit of the set threshold, then reduce the flow rate of the corresponding first filter element to reduce the load on the first filter element.

[0126] This can be understood as the controller 200 calculating the filter cartridge attenuation coefficient according to a certain algorithm based on the real-time flow detected by the flow meter 140, and comparing it with the set lower limit value of the filter cartridge attenuation coefficient to determine whether to adjust the inlet water flow ratio.

[0127] If the real-time filter element attenuation coefficient is below the lower limit, no flow rate adjustment is required; if the real-time attenuation coefficient is above the lower limit, the flow rate of the filter element needs to be reduced to decrease the filter element load and thus reduce the attenuation coefficient, eventually causing the filter element to fail at the set time.

[0128] The specific control measures for filter element life load adjustment are as follows:

[0129] The attenuation coefficient for both 600G and 800G filter cartridges is set to 0.03. The initial total flow rate is 3.5L / min, with the 600G filter cartridge having a flow rate of 1.5L / min and the 800G filter cartridge having a flow rate of 2L / min.

[0130] The controller calculates the corresponding filter cartridge attenuation coefficient based on a flow rate of 2L / min, as follows:

[0131] When the real-time attenuation coefficients of the 600G and 800G filter elements are detected to be 0.02 and 0.02 respectively, the system does not need to adjust the diversion valve 151, and the flow rates of the 600G and 800G filter elements are 1.5L / min and 2L / min respectively.

[0132] When the real-time attenuation coefficients of the 600G and 800G filter elements were detected to be 0.04 and 0.02 respectively, the water flow rate through the 600G filter element increased from 1.5L / min to 21L / min, and the water flow rate through the 800G filter element decreased from 2.1L / min to 1.4L / min.

[0133] At this time, the system controls the opening degree of the diversion valve 151 to lower the proportion of the inlet water flow corresponding to the 600G filter element, and the proportion of the inlet water flow through the 800G filter element is increased. Correspondingly, the purified water flow rates of the 600G and 800G filter elements are 1.5L / min and 2L / min, respectively.

[0134] More specifically, such as Figure 3 As shown, the diverter valve 151 can be replaced by a single flow regulating valve 152 placed on one of the branches to regulate the flow load on that branch.

[0135] Similarly, as Figure 4 As shown, the diverter valve 151 can also be replaced by two flow regulating valves 152 placed on the two branches to simultaneously regulate the flow of the branches.

[0136] Similarly, the flow rate regulation ratio of the flow divider valve 151 can be replaced by regulating the flow rate by adjusting the output power of the pump.

[0137] According to an embodiment of the present invention, in another aspect, a storage medium is also provided, storing a computer program, which, when executed by a processor, implements the steps of any one of the water purification system 100 water production control methods.

[0138] Specifically, the aforementioned storage medium stores a computer program, which, when executed by a processor, can perform the following steps:

[0139] Obtain the flow rate information of the second outlet 1304 of the first filter element 130;

[0140] The flow rate is adjusted by the flow regulating device 150 according to the flow information, which controls the flow rate of the first inlet 1301 of the first filter element.

[0141] The storage medium can also perform the following steps:

[0142] The filter attenuation coefficient on the branch is calculated based on the flow information;

[0143] The inlet flow rate ratio of the flow regulating device 150 is adjusted according to the attenuation coefficient.

[0144] The storage medium can also perform the following steps:

[0145] If the attenuation coefficient is lower than the lower limit of the set threshold, no flow regulation is required;

[0146] If the attenuation coefficient is higher than the lower limit of the set threshold, the flow rate of the corresponding first filter element will be reduced to decrease the load on the first filter element.

[0147] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A water purification system (100), characterized in that, include: Original water outlet(110); Multiple water production pipelines (120) are connected to the raw water inlet (110) respectively, and the multiple water production pipelines (120) are connected in parallel. Each water production pipeline (120) is connected in series with a first filter element (130). The first filter element (130) has a first inlet (1301), a first outlet (1302), a second inlet (1303), and a second outlet (1304). The first inlet (1301) is connected to the raw water inlet (110), the first outlet (1302) is connected to the water production pipeline (120), the second inlet (1303) is connected to pure water, and the second outlet (1304) is equipped with a flow meter (140). The flow meter (140) is adapted to obtain the flow information of the second outlet (1304). A flow regulating device (150) is installed on the water production pipeline (120); The controller (200) is communicatively connected to the flow meter (140). The controller (200) is adapted to control the flow regulating device (150) to adjust the flow rate entering the first inlet (1301) according to the flow information of the flow meter (140) so that the filter element is synchronously deactivated.

2. The water purification system (100) according to claim 1, characterized in that, The flow regulating device (150) includes a diverter valve (151), which has an inlet valve (172) and multiple outlet valves. The inlet valve (172) is connected to the inlet, and each outlet valve is connected to the corresponding first inlet (1301). The diverter valve (151) is also connected to the controller (200).

3. The water purification system (100) according to claim 1, characterized in that, The flow regulating device (150) further includes a flow regulating valve (152) disposed on at least one of the water production pipelines (120), and the flow regulating valve (152) is adapted to regulate the flow rate entering the first water inlet (1301), and the flow regulating valve (152) is communicatively connected to the controller (200).

4. The water purification system (100) according to claim 1, characterized in that, The flow regulating device (150) further includes a water pump, which is communicatively connected to the controller (200). The controller (200) is adapted to control the output power of the water pump according to the flow information of the first outlet (1302) to regulate the flow rate of the water pump supplying water to the first inlet (1301).

5. The water purification system (100) according to any one of claims 1 to 4, characterized in that, The first filter element (130) includes a first filter element and a second filter element. The first filter element has a first inlet (1301) and a first outlet (1302), and the second filter element has a second inlet (1303) and a second outlet (1304).

6. The water purification system (100) according to claim 5, characterized in that, The water purification system (100) further includes a second filter element (160), which is connected in series with the water production pipeline (120) and is located downstream of the first filter element (130). The first outlet (1302) is connected to the inlet of the second filter element (160), and the second inlet (1303) is connected to the pure water outlet of the second filter element (160).

7. A water production control method for a water purification system (100), characterized in that, include: Obtain the flow rate information of the second outlet (1304) of the first filter element (130); According to the flow information, the flow regulating device (150) adjusts the flow rate entering the first inlet (1301) of the first filter element (130) so that the filter element is synchronously deactivated; The first inlet (1301) is suitable for receiving raw water, and the second outlet (1304) is suitable for discharging pure water.

8. The water production control method of the water purification system (100) according to claim 7, characterized in that, The water purification system (100) water production control method further includes: The filter attenuation coefficient on the branch is calculated based on the flow information. The inlet flow rate ratio of the flow regulating device (150) is adjusted according to the attenuation coefficient.

9. The water production control method of the water purification system (100) according to claim 8, characterized in that, Adjusting the inlet flow rate ratio of the flow regulating device (150) according to the attenuation coefficient specifically includes: If the attenuation coefficient is lower than the lower limit of the set threshold, then no flow rate adjustment is required; If the attenuation coefficient is higher than the lower limit of the set threshold, the flow rate of the corresponding first filter element is reduced to reduce the load on the first filter element (130).

10. A storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the water production control method of the water purification system (100) as described in any one of claims 7 to 9.

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