Drinking water preparation method, device and equipment capable of adjusting mineral content

Abstract

The invention relates to the technical field of preparation of drinking water capable of adjusting mineral content, and discloses a preparation method, device and equipment of drinking water capable of adjusting mineral content, the method comprises the following steps: obtaining target mineral content of a first waterway in real time, taking the target mineral content as a core input parameter, and combining with preset mineral content set by a user to obtain a target mineral content; the opening degree of the two independent valves is calculated and controlled in a linkage mode, so that the mineral content of the discharged water is the preset mineral content. The method has the beneficial effects that closed-loop accurate control on the mixing proportion is realized, upstream fluctuation caused by water quality change of raw water or performance degradation of a filter element can be automatically compensated, the mineral content of final effluent can stably reach a user preset value no matter how the water inlet condition changes, and meanwhile, the water quality of the water outlet can be effectively improved by independently controlling the two water paths respectively. The system can respond to the adjusting instruction more flexibly and quickly, and the intelligent level of water treatment equipment and the reliability of personalized drinking experience are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of drinking water preparation technology with adjustable mineral content, and more particularly to a method, apparatus, and equipment for preparing drinking water with adjustable mineral content. Background Technology

[0002] In traditional drinking water treatment technologies, reverse osmosis (RO) technology can deeply purify water, but it almost completely removes beneficial minerals. To address this issue, technologies have emerged that mix RO purified water with unfiltered mineral water. However, existing mixing methods often rely on simple pre-set proportional valves or manual adjustments, failing to dynamically adjust based on fluctuations in the raw water's mineral content or filter performance degradation. This results in unstable mineral content in the final effluent, failing to meet users' personalized needs. Furthermore, a single control strategy struggles to handle flow fluctuations caused by pressure changes on the RO membrane side, further impacting the long-term reliability of mixing accuracy. Therefore, a method is urgently needed that can automatically, accurately, and stably control the mixing process to produce drinking water with a constant mineral content. Summary of the Invention

[0003] Based on this, it is necessary to address the existing problem of preparing drinking water with adjustable mineral content by proposing a method, apparatus, and equipment for preparing drinking water with adjustable mineral content.

[0004] A method for preparing drinking water with adjustable mineral content, the method being applied to the water circuit of a water treatment device, the water circuit of the water treatment device comprising: a first water circuit pipe, a second water circuit pipe, and a third water circuit pipe, the first water circuit pipe and the second water circuit pipe being respectively connected to the third water circuit pipe, a first valve being installed on the first water circuit pipe, and a reverse osmosis membrane and a second valve being installed on the second water circuit pipe, the method comprising: Acquire the user-set preset mineral content and water output signal; The target mineral content in the first water pipe is obtained in response to the water outlet signal; The first control parameter of the first valve and the second control parameter of the second valve are determined based on the target mineral content and the preset mineral content. The first valve is controlled based on a first control parameter of the first valve, and the second valve is controlled based on a second control parameter of the second valve, so that the mineral content of the water discharged from the third water pipe is the preset mineral content.

[0005] Furthermore, an electric charge film is also provided on the first water pipe, and the step of obtaining the mineral content in the first water pipe in response to the water outlet signal includes: The mineral content of the water flowing through the charged membrane is obtained and used as the mineral content of the first water pipe.

[0006] Further, the step of determining the first control parameter of the first valve and the second control parameter of the second valve based on the first mineral content includes: Calculate the target mixing ratio based on the preset mineral content and the first mineral content; Based on the target mixing ratio, the opening degree or flow rate setpoint of the first valve and the second valve are determined as the first control parameter and the second control parameter, respectively.

[0007] Furthermore, a water quality sensor is installed on the third water pipe. Following the steps of controlling the first valve based on the first control parameter of the first valve and controlling the second valve based on the second control parameter of the second valve to ensure that the mineral content of the water discharged from the third water pipe is the preset mineral content, the method further includes: After controlling the first valve and the second valve based on the control parameters, the actual mineral content of the effluent is detected in real time by the water quality sensor; Based on the deviation between the actual effluent mineral content and the preset mineral content, the first control parameter and / or the second control parameter are dynamically adjusted until the actual effluent mineral content reaches the preset mineral content.

[0008] Furthermore, a mineralization device is also installed downstream of the third water pipeline to replenish the mixed water with trace elements of a preset type and content; the step of determining the first control parameter of the first valve and the second control parameter of the second valve based on the target mineral content and the preset mineral content includes: Based on the preset mineral content, the first mineral content, and the trace element supplementation amount of the mineralization device, the first control parameter and the second control parameter are determined so that the sum of the mineral content of the mixed water in the third water pipeline upstream of the mineralization device and the trace element supplementation amount reaches the preset mineral content.

[0009] Furthermore, a booster pump is also installed on the inlet side of the reverse osmosis membrane on the second water pipeline; in the step of determining the first control parameter of the first valve and the second control parameter of the second valve based on the target mineral content and the preset mineral content, the step of determining the second control parameter of the second valve includes: The booster pump is controlled to maintain a stable water flow pressure through the reverse osmosis membrane, thereby enabling the setting of the second control parameter for the second valve.

[0010] Further, in the step of determining the first control parameter of the first valve and the second control parameter of the second valve based on the target mineral content and the preset mineral content, the step of determining the first control parameter of the first valve includes: The stable pressure and flow rate of the second water pipeline maintained by the booster pump are obtained in real time. The first control parameter of the first valve is dynamically set based on the preset mineral content, the first mineral content, and the stable pressure and flow rate of the second water pipeline.

[0011] A water treatment equipment control device is provided for controlling the water treatment equipment, which includes a water treatment equipment water circuit. The water treatment equipment water circuit includes a first water circuit pipe, a second water circuit pipe, and a third water circuit pipe. The first water circuit pipe and the second water circuit pipe are respectively connected to the third water circuit pipe. A first valve is provided on the first water circuit pipe, and a reverse osmosis membrane and a second valve are provided on the second water circuit pipe. The device is configured to implement the steps of the above-described method for preparing drinking water with adjustable mineral content.

[0012] A water treatment device includes a memory and a processor. The memory stores a computer program, which, when executed by the processor, causes the processor to perform the following steps: Acquire the user-set preset mineral content and water output signal; The target mineral content in the first water pipe is obtained in response to the water outlet signal; The first control parameter of the first valve and the second control parameter of the second valve are determined based on the target mineral content and the preset mineral content. The first valve is controlled based on a first control parameter, and the second valve is controlled based on a second control parameter, so that the mineral content of the water discharged from the third water pipe is the preset mineral content. A computer-readable storage medium stores a computer program, which, when executed by a processor, causes the processor to perform the following steps: Acquire the user-set preset mineral content and water output signal; The target mineral content in the first water pipe is obtained in response to the water outlet signal; The first control parameter of the first valve and the second control parameter of the second valve are determined based on the target mineral content and the preset mineral content. The first valve is controlled based on a first control parameter of the first valve, and the second valve is controlled based on a second control parameter of the second valve, so that the mineral content of the water discharged from the third water pipe is the preset mineral content.

[0013] The beneficial effects of this invention are as follows: By acquiring the target mineral content of the first water path in real time and using it as the core input parameter, combined with the preset mineral content set by the user, the opening degree of two independent valves is calculated and controlled in a coordinated manner, realizing closed-loop precise control of the mixing ratio. It can automatically compensate for upstream fluctuations caused by changes in raw water quality or filter performance degradation, ensuring that the mineral content of the final effluent can stably reach the user preset value no matter how the influent conditions change. At the same time, by independently controlling the two water paths, the system can respond to adjustment commands more flexibly and quickly, significantly improving the intelligence level of the water treatment equipment and the reliability of the personalized drinking water experience. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] in: Figure 1 This is an application environment diagram of a method for preparing drinking water with adjustable mineral content in one embodiment; Figure 2 This is a flowchart of a method for preparing drinking water with adjustable mineral content in one embodiment; Figure 3 This is a structural block diagram of a water treatment device in one embodiment. Detailed Implementation

[0016] 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, and 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.

[0017] Reference Figure 1 The water circuit of the water treatment equipment specifically includes: Water Inlet and Primary Treatment: Tap water first flows into the three-way ball valve. This valve acts as the system's main inlet switch, controlling the flow of raw water. Subsequently, the water flows through the electrostatic precipitator (ESP). The ESP is a selective filtration membrane whose core function is to effectively remove bacteria, viruses, colloids, organic pollutants, and some polyvalent heavy metal ions (such as lead and arsenic) from the water using the principle of charge repulsion. Simultaneously, it allows beneficial monovalent mineral ions such as calcium, magnesium, potassium, and sodium to pass through, thus producing purified water containing minerals.

[0018] First waterway (mineral water passage): Path: After exiting the charge membrane, a portion of the water flows into the first water channel pipe.

[0019] Component function: Check valve: Installed at the beginning of the pipeline, its function is to prevent water flow from going back and ensuring that the water flow in the first water path is unidirectional and stable, avoiding contamination or pressure shock to the charge membrane or the upstream pipeline.

[0020] Control valve: Typically an electric proportional valve or a stepper motor valve. It is the core actuator for achieving precise adjustment of mineral content. By receiving instructions from the control system, it dynamically changes its opening degree, thereby precisely controlling the flow rate of mineral water into the subsequent mineralization unit.

[0021] Flow meter: Installed after the regulating valve, it is used to monitor and provide accurate water flow data through the first water path in real time, providing key parameters for the calculation of the control system.

[0022] Destination: The water from this route is eventually delivered to the mineralization unit.

[0023] Second water supply line (deep purification water line): Path: Another portion of the water flowing out from the charge membrane enters the second waterway pipe.

[0024] Component function: Inlet valve: controls the flow of water into the reverse osmosis membrane treatment unit.

[0025] Booster pump: Since reverse osmosis membranes require high driving pressure to work properly, the core function of the booster pump is to increase and stabilize the water pressure within the optimal working pressure range required by the reverse osmosis membrane (usually 0.5-0.8 MPa), ensuring the stability of its desalination rate and water production efficiency.

[0026] Reverse osmosis membrane: It is the core of deep purification. Driven by high pressure, it can remove about 99% of dissolved solids in water, including residual ions, microorganisms, organic matter, etc., producing near-pure water.

[0027] End point: The produced pure water is also transported to the mineralization unit.

[0028] Mixing and final treatment (mineralized water generation): The mineralization unit receives mineralized water from the first water pipe and pure water from the second water pipe. Its core functions are twofold: first, to physically mix the two water sources; and second, to slowly release specific types and amounts of trace elements (such as strontium and metasilicic acid) into the mixed water through built-in natural mineral filter media (such as strontium-rich ore and maifanite). By controlling the mixing ratio of the two water sources through regulating valves, and combining this with the fixed replenishment amount from the mineralization unit, mineralized water with a mineral content precisely matching the user's settings can be produced.

[0029] Fourth water pipeline (pure water pipeline): Path: After the pure water produced by the reverse osmosis membrane, one branch is diverted to form the fourth water pipeline.

[0030] Post-filtration: Usually an activated carbon filter, used to adsorb trace amounts of odor that may be present in the pure water in the pressure tank or pipeline, improve the taste, and ensure that the water is clear and sweet.

[0031] Water outlet valve: controls the dispensing of purified water.

[0032] Output: Directly outputs unmineralized pure water, suitable for brewing milk powder, coffee, or other scenarios requiring extremely low mineral content.

[0033] Fifth water supply line (purified water supply line): Path: After the charge membrane, one channel is split off to form the fifth water channel.

[0034] Function of the component: It is controlled by an independent outlet valve.

[0035] Output: Purified water that has only passed through an electrostatic membrane filter. This water retains the minerals found in the original water but removes harmful substances. Its quality is superior to tap water and can be used directly for showering, washing fruits and vegetables, or daily laundry, achieving cascade utilization of water resources.

[0036] like Figure 2 As shown, in one embodiment, a method for preparing drinking water with adjustable mineral content is provided. The method is applied to the water circuit of a water treatment device, which includes a first water circuit pipe, a second water circuit pipe, and a third water circuit pipe. The first and second water circuit pipes are respectively connected to the third water circuit pipe. A first valve is installed on the first water circuit pipe, and a reverse osmosis membrane and a second valve are installed on the second water circuit pipe. The method specifically includes the following steps: S1: Obtain the user-set preset mineral content and water output signal; S2: In response to the water outlet signal, obtain the target mineral content in the first water pipe; S3: Determine the first control parameter of the first valve and the second control parameter of the second valve based on the target mineral content and the preset mineral content; S4: Control the first valve based on the first control parameter of the first valve, and control the second valve based on the second control parameter of the second valve, so that the mineral content of the water discharged from the third water pipe is the preset mineral content.

[0037] As described in step S1 above, the system needs to receive the preset mineral content set by the user, usually through a user interface. Users can select the desired mineral concentration in the drinking water based on personal preferences or health needs. Furthermore, user input can be completed via a touchscreen, buttons, or a mobile application. Users can select specific water quality standards, such as low mineral or high mineral, or directly input the specific mineral content values. Simultaneously, the water treatment equipment monitors the water output signal, which is the command to start water flow, marking the beginning of the user's desired drinking water intake. When the water treatment equipment receives the water output signal, the system activates the corresponding control logic and initiates the subsequent water treatment process.

[0038] As described in step S2 above, in response to the effluent signal, the water treatment equipment needs to quickly respond and acquire the target mineral content in the first water pipe. Here, the target mineral content refers to the actual mineral level present in the first water pipe after preliminary filtration or mineralization. To achieve this, the water treatment equipment may be equipped with water quality sensors capable of real-time detection of mineral concentration in the water. These sensors measure the TDS (Total Dissolved Solids) value of the water flow to obtain accurate mineral content readings. Sensors are typically installed on the first water pipe to ensure the capture of the latest water quality data. This real-time monitoring capability allows the water treatment equipment to more accurately adjust subsequent mineral content. If the detected mineral content deviates from the user-set preset value, the water treatment system will use this information to make corresponding adjustments, providing a basis for valve control in subsequent steps and ensuring that the final effluent water quality meets the user's requirements. The preset mineral content and target mineral content generally refer to the TDS value as the mineral content indicator.

[0039] As described in step S3 above, based on the target mineral content and the preset mineral content, the first control parameters of the first valve and the second control parameters of the second valve are determined. The control system of the water treatment equipment compares the acquired target mineral content with the user's preset mineral content to determine the control parameters of the first and second valves, and calculates the optimal opening or flow rate setpoints of the two valves to achieve the desired mineral content in the final discharged water. Specifically, the system first calculates the required mineral replenishment amount, i.e., the difference between the user's preset value and the currently detected target mineral content. Then, the system determines the corresponding control parameters based on this difference and information such as the flow characteristics of the two water paths and valve attributes (e.g., flow characteristic curves). These control parameters are specified as the opening of the first valve, the flow rate, and the flow rate of the second valve, ensuring that the mixed water reaches the desired mineral content, i.e., the preset mineral content. Specifically, this can be achieved through formulas. Calculate, where, For mixing ratio, To preset the mineral content, The target mineral content is determined, and then the first and second control parameters are determined based on the mixing ratio.

[0040] As described in step S4 above, the first valve is controlled based on the first control parameters of the first valve, and the second valve is controlled based on the second control parameters of the second valve, so that the mineral content of the water discharged from the third water pipe is the preset mineral content. The water treatment equipment controls the first and second valves respectively according to the previously determined control parameters to ensure that the mineral content of the water discharged from the third water pipe reaches the user's preset target. In this process, valve control is usually accomplished through intelligent devices such as electric valves or proportional valves, enabling rapid and precise opening adjustment. The system will simultaneously adjust both water paths so that the mixed water entering the third water pipe meets the user's requirements in terms of mineral content. For example, if the system calculates that the flow rate of the first water path (including mineral water) should be increased, the opening of the first valve is increased; if it is necessary to reduce the flow rate of RO water, this is achieved by adjusting the second valve. This closed-loop control method ensures that the water treatment equipment can respond to water quality changes and flow fluctuations in real time, maintaining a stable mineral content in the discharged water.

[0041] In one embodiment, a charge film is further provided on the first water pipe, and step S2, which involves obtaining the mineral content in the first water pipe in response to the water outlet signal, includes: S201: Obtain the mineral content of the water flowing through the charged membrane, and use it as the mineral content of the first water pipe.

[0042] As described in step S201 above, the water treatment system requires advanced water quality monitoring to obtain the mineral content of the water after passing through the charge membrane. Effectively utilizing the characteristics of the charge membrane, a filter based on the principle of charge selectivity, it can selectively remove polyvalent ions, colloids, and microorganisms from the water while retaining beneficial monovalent mineral ions such as sodium and potassium ions. Therefore, before this step, the raw water undergoes a significant change in quality after passing through the charge membrane. The system monitors the water flow through the charge membrane in real time using high-precision water quality sensors installed in the water pipes to obtain accurate mineral content data. These sensors use parameters such as conductivity and TDS (total dissolved solids) for detection and transmit the data back to the control system. This data corresponds to the water quality characteristics in the first water pipe, which not only affects the adjustment and operation of the water treatment equipment but also provides a data basis for subsequent mineral content control. By acquiring this water quality data, the water treatment equipment can understand the current mineral concentration in the water in real time and compare it with the target content set by the user, thereby ensuring precise control of subsequent steps. When the user sets a specific mineral content, the water treatment equipment can make corresponding adjustments in a timely manner to ensure that the quality of the final discharged water meets the user's health needs and taste preferences.

[0043] In one embodiment, step S3, which determines the first control parameter of the first valve and the second control parameter of the second valve based on the first mineral content, includes: S301: Calculate the target mixing ratio based on the preset mineral content and the first mineral content; S302: Based on the target mixing ratio, determine the opening degree or flow rate setting value of the first valve and the second valve respectively, as the first control parameter and the second control parameter.

[0044] As described in step S301 above, a target mixing ratio is calculated based on the preset mineral content and the first mineral content. The control system of the water treatment equipment compares the received preset mineral content with the mineral content in the current first water path to calculate the target mixing ratio. First, the preset mineral content is the precise mineral concentration desired by the user in the drinking water, reflecting the user's health needs or personal preferences. The first mineral content is the mineral concentration recently measured in the water after the charge membrane, representing the current actual output of the water treatment equipment. The key to calculating the target mixing ratio is determining the water flow rate ratio required for the precise mineral composition desired by the user in the drinking water. Specifically, the water treatment equipment connects to a relevant mathematical model and converts the difference between the preset mineral content and the first mineral content into a mixing ratio value through a calculation formula. This value is usually expressed as the flow rate ratio between mineral-rich water (from the first water path) and mineral-removed water (treated by the second water path through the reverse osmosis membrane). For example, if the preset mineral content is set to 200 mg / L and the detected first mineral content is 100 mg / L, the system will calculate that this target mixing ratio needs to be achieved by increasing the water flow rate in the first water path and decreasing the water flow rate in the second water path. This ratio will directly affect the specific settings of valve control in subsequent steps, ensuring that the final mineral content of the mixed water meets the user's expectations.

[0045] As described in step S302 above, based on the target mixing ratio, the opening or flow rate setpoints of the first valve and the second valve are determined as the first control parameter and the second control parameter, respectively. The control system of the water treatment equipment further derives control parameters applicable to the first and second valves based on the target mixing ratio calculated in the previous step. Specifically, flow characteristic curves and control algorithms can be used as core tools. The flow characteristic curve of each valve indicates the allowable water flow rate at different opening degrees. Therefore, based on the target mixing ratio, the system will use mathematical models and flow characteristic curves to determine the appropriate specific opening or flow rate setpoints for the first and second valves. For example, if the target mixing ratio is calculated to be 1:3, the water treatment equipment will set the opening of the first valve to the allowable water flow rate setpoint, while the opening of the second valve will be adjusted to the corresponding value to achieve the required ratio. Simultaneously, the system also needs to consider possible changes in actual operating conditions, such as fluctuations in raw water quality and changes in filter element resistance, to ensure that the control parameters can dynamically adapt to the current water quality conditions. Therefore, the first and second control parameters generated will form a feedback loop, helping the water treatment equipment to continuously adjust throughout the effluent process and ensure that the discharged water always maintains the user's preset mineral content.

[0046] In one embodiment, a water quality sensor is installed on the third water pipe. After step S4, which involves controlling the first valve based on a first control parameter of the first valve and controlling the second valve based on a second control parameter of the second valve to ensure that the mineral content of the water discharged from the third water pipe is the preset mineral content, the method further includes: S501: After controlling the first valve and the second valve based on the control parameters, the actual mineral content of the effluent is detected in real time by the water quality sensor; S502: Based on the deviation between the actual effluent mineral content and the preset mineral content, dynamically adjust the first control parameter and / or the second control parameter until the actual effluent mineral content reaches the preset mineral content.

[0047] As described in step S501 above, after controlling the first and second valves based on the control parameters, the water quality sensor detects the actual mineral content of the effluent in real time. The water treatment system implements a dynamic monitoring mechanism to ensure that the final discharged drinking water does indeed meet the preset mineral content set by the user. A water quality sensor is installed on the third water pipe of the water treatment equipment. This sensor is responsible for monitoring the actual mineral content of the water discharged from the water treatment equipment in real time. The sensor typically measures based on indicators such as conductivity and TDS (total dissolved solids) and continuously transmits the obtained data to the control system. The water quality sensor can promptly capture changes in the mineral content of the effluent. By continuously monitoring the actual mineral content, the water treatment system can quickly identify the deviation between the mineral concentration in the water and the user's preset value. Through appropriate correction, the water treatment equipment can not only ensure that the effluent quality meets the user's needs, but also effectively improve water quality stability and user satisfaction.

[0048] As described in step S502 above, based on the deviation between the actual effluent mineral content and the preset mineral content, the first control parameter and / or the second control parameter are dynamically adjusted until the actual effluent mineral content reaches the preset mineral content. Using acquired real-time data, dynamic adjustments are implemented by analyzing the deviation between the actual effluent mineral content and the user-set preset mineral content. This process is a self-feedback mechanism designed to ensure that the user's drinking water is always in an ideal state. Specifically, firstly, the system calculates the difference between the actual effluent mineral content and the preset mineral content to determine whether the effluent meets the standard. If the difference is significant, the water treatment equipment system will dynamically adjust the first control parameter of the first valve and / or the second control parameter of the second valve based on this deviation information. According to changes in the actual effluent water quality, the control system will update the valve opening or flow setting in real time to quickly compensate for the deviation. For example, if the actual mineral content is lower than the preset value, the system may increase the opening of the first valve to increase the inflow of mineral water and correspondingly decrease the opening of the second valve to reduce the inflow of demineralized water passing through the reverse osmosis membrane. This iterative adjustment process continues until the actual mineral content of the effluent matches the preset value. Through this dynamic control mechanism, the water treatment equipment can ensure that it consistently provides drinking water that meets user needs, regardless of changes in water quality, fluctuations in raw water conditions, and other external influences. This intelligent adjustment method greatly improves the performance of water treatment equipment and the user experience, helping users to gain greater peace of mind and satisfaction during consumption.

[0049] In one embodiment, a mineralization device is further provided downstream of the third water pipeline for supplementing the mixed water with trace elements of a preset type and content; step S3, which determines the first control parameter of the first valve and the second control parameter of the second valve based on the target mineral content and the preset mineral content, includes: S311: Based on the preset mineral content, the first mineral content, and the trace element supplementation amount of the mineralization device, determine the first control parameter and the second control parameter so that the sum of the mineral content of the mixed water upstream of the mineralization device in the third water pipe and the trace element supplementation amount reaches the preset mineral content.

[0050] As described in step S311 above, the control system of the water treatment equipment comprehensively considers multiple factors to determine the first control parameters of the first valve and the second control parameters of the second valve. Specifically, the preset mineral content set by the user represents the mineral concentration that the user expects to achieve in the drinking water, which is usually based on health standards or personal taste preferences. Secondly, the first mineral content detected by the charge membrane shows the actual state of the current water quality, and this data is an important basis for optimization and adjustment. Finally, the amount of trace element supplementation from the mineralization device specifies the additional mineral content that can be added to the final water quality. By combining these three factors, the water treatment equipment can calculate in detail the amount of minerals that need to be added or reduced to ensure that the final water quality accurately meets the user's needs. During the calculation process, the control system will first determine the required mineral content in the mixed water. This target value is the preset mineral content minus the amount of trace element supplementation from the mineralization device. Then, the required mixing ratio is calculated based on the difference between this target value and the actual mineral content in the first water pipe. These calculations will be used to determine the valve control parameters. For example, if the calculated required mineral content indicates a need to increase the flow rate of the first water path (rich mineral water), the system will adjust the opening of the first valve accordingly, increasing its flow rate and correspondingly reducing the flow rate from the second water path (RO water). This adjustment mechanism ensures that the final mixed water upstream of the mineralization device reaches the required level, providing a guarantee for subsequent water quality adjustment and user experience. By comprehensively considering the preset mineral target, the current actual mineral content, and the additional trace element supplementation, the system can effectively calculate precise valve control parameters, ensuring that the nutritional and taste requirements of the user are met at every stage of drinking water consumption. Of course, in some embodiments, the content of trace elements may not be considered; the mineralization device is only for supplementing the corresponding trace elements and is unrelated to the aforementioned mineral content.

[0051] The trace element release rate of a mineralization device can be a fixed value or adjustable by the user. For example, the trace element replenishment amount of the mineralization device can be determined by the manufacturer through rigorous laboratory testing and calibration procedures before the product leaves the factory. This test typically measures the increase in element content after the mineralization device treats deionized or purified water under standard water temperature, flow rate, and operating time conditions, thereby obtaining a stable release curve or average release concentration value. The replenishment amount of the mineralization device can also be designed to be user-adjustable. Users can input or select the corresponding trace element replenishment information through the water dispenser's human-machine interface (such as a touch screen, mobile APP) or when replacing different specifications of mineralization filter cartridges.

[0052] In one embodiment, a booster pump is also provided on the inlet side of the reverse osmosis membrane on the second water pipe; in step S3 of determining the first control parameter of the first valve and the second control parameter of the second valve based on the target mineral content and the preset mineral content, the step of determining the second control parameter of the second valve includes: S321: Control the operation of the booster pump to maintain a stable water flow pressure through the reverse osmosis membrane, thereby setting the second control parameter of the second valve.

[0053] As described in step S32 above, reverse osmosis (RO) membranes are an important separation technology used in water treatment. Their efficiency is highly dependent on the water pressure flowing through the membrane. In this embodiment, to ensure stable water pressure flowing through the RO membrane, an additional pump can be used to maintain the pressure. The booster pump is designed to address the potential water quality instability caused by pressure fluctuations during RO membrane treatment. When the water flow into the RO membrane is too low, the RO membrane's efficiency may decrease, affecting its ability to remove impurities and ultimately resulting in suboptimal drinking water quality. Therefore, to achieve optimal water treatment results, it is necessary to adjust the water pressure by controlling the operation of the booster pump to ensure it remains within the membrane's suitable operating range. This typically requires the system to monitor the booster pump's output pressure in real time and maintain it within a preset ideal range. Specifically, the control system uses pressure sensors to monitor the water pressure entering the reverse osmosis membrane in real time. If the pressure drops below a set threshold, the booster pump will automatically start or accelerate; otherwise, it may enter standby mode. Through this dynamic adjustment, the water pressure flowing through the RO membrane is kept stable, providing strong support for subsequent flow control.

[0054] When determining the second control parameters for the second valve, the stable water pressure flowing through the reverse osmosis membrane directly affects the speed and quality of the water flowing out of the second water path. The effective operation of the booster pump ensures that the entire system consistently provides precise flow regulation under any given water flow demand. Simultaneously, stable water pressure helps control the valve to achieve smooth opening and closing operations, avoiding numerous problems such as decreased installation and adjustment accuracy, and water quality loss caused by rapid fluctuations. By controlling the operation of the booster pump to stabilize the water flow pressure before the reverse osmosis membrane, it is possible to accurately set the second control parameters for the second valve, ensuring that the final drinking water reaches the mineral content set by the user. This setting not only enhances the water treatment equipment's ability to control water quality but also provides users with a more efficient and safer user experience.

[0055] In one embodiment, in step S3 of determining the first control parameter of the first valve and the second control parameter of the second valve based on the target mineral content and the preset mineral content, the step of determining the first control parameter of the first valve includes: S331: Real-time acquisition of the stable pressure and flow rate of the second water pipeline maintained by the booster pump; S332: Based on the preset mineral content, the first mineral content, and the stable pressure and flow rate of the second water pipe, dynamically set the first control parameter of the first valve.

[0056] As described in step S331 above, the water treatment equipment's control system monitors and acquires the pressure and flow rate in the second water path maintained by the booster pump in real time. The booster pump is responsible for ensuring that the water entering the reverse osmosis membrane has a stable pressure, which directly affects the membrane's filtration efficiency and water flow rate. Therefore, pressure sensors and flow sensors are typically installed in the system to comprehensively monitor the operating status of the second water path. First, the pressure sensor measures the static and dynamic pressure in the water flowing through the reverse osmosis membrane and transmits this data back to the control system. In addition, a flow sensor is needed to monitor the amount of water flowing through the second water path. After acquiring this real-time data, the water treatment equipment's control system can clearly understand the current water path status, providing the necessary basic information for subsequent control of the first valve. When determining the control parameters for the first valve, the system considers the stable pressure and flow rate of the second water path to ensure that adjustments are coordinated with the RO membrane's operating conditions, thereby achieving optimal drinking water quality. This real-time monitoring mechanism not only improves the system's responsiveness but also enhances the accuracy of water quality regulation, enabling users to enjoy consistently high-quality drinking water.

[0057] As described in step S332 above, the control system of the water treatment equipment dynamically sets the first control parameters of the first valve based on several important parameters. First, the system compares the preset mineral content set by the user with the actual measured mineral content in the first water path to calculate the required increase or decrease. Next, the stable pressure and flow information of the second water path are taken into consideration. This information is crucial because it affects the opening degree of the first valve and flow regulation. When the water pressure and flow rate of the second water path are within the ideal range, the water treatment equipment can more accurately control the water flow from the first water path to achieve the user's target. If the preset mineral content is higher than the actual measured mineral content, the system may increase the opening degree of the first valve, allowing more mineral-rich water to flow into the mixing process; conversely, if the user's target is lower, it may be necessary to reduce the flow rate of the first water path. Furthermore, the control system also considers any potential factors detected, such as flow fluctuations or pressure changes, to ensure stable drinking water quality during adjustments. Through such dynamic adjustment, the water treatment equipment can respond to the user's needs in real time, effectively ensuring that each discharged water contains an accurate mineral concentration. The implementation of this step not only improves the flexibility and accuracy of water treatment equipment in water quality regulation, but also provides users with a higher level of drinking water experience, ensuring that their health needs and taste preferences are met.

[0058] The beneficial effects of this invention are as follows: By acquiring the target mineral content of the first water path in real time and using it as the core input parameter, combined with the preset mineral content set by the user, the opening degree of two independent valves is calculated and controlled in a coordinated manner, realizing closed-loop precise control of the mixing ratio. It can automatically compensate for upstream fluctuations caused by changes in raw water quality or filter performance degradation, ensuring that the mineral content of the final effluent can stably reach the user preset value no matter how the influent conditions change. At the same time, by independently controlling the two water paths, the system can respond to adjustment commands more flexibly and quickly, significantly improving the intelligence level of the water treatment equipment and the reliability of the personalized drinking water experience.

[0059] Figure 3 An internal structural diagram of a water treatment device in one embodiment is shown. This water treatment device can specifically be a terminal or a server, and more specifically, a computer device. Figure 3As shown, the water treatment device includes a processor, a memory, and a network interface connected via a system bus. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and may also store a computer program. When executed by the processor, this computer program enables the processor to implement a method for preparing drinking water with adjustable mineral content. The internal memory may also store a computer program, which, when executed by the processor, enables the processor to implement a method for preparing drinking water with adjustable mineral content. Those skilled in the art will understand that... Figure 3 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the water treatment equipment to which the present application is applied. Specific water treatment equipment may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0060] In one embodiment, a water treatment device is provided, including a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the following steps: Acquire the user-set preset mineral content and water output signal; The target mineral content in the first water pipe is obtained in response to the water outlet signal; The first control parameter of the first valve and the second control parameter of the second valve are determined based on the target mineral content and the preset mineral content. The first valve is controlled based on a first control parameter of the first valve, and the second valve is controlled based on a second control parameter of the second valve, so that the mineral content of the water discharged from the third water pipe is the preset mineral content.

[0061] By acquiring the target mineral content of the first water path in real time and using it as the core input parameter, combined with the user-set preset mineral content, the system calculates and controls the opening of two independent valves in a coordinated manner, achieving closed-loop precise control of the mixing ratio. It can automatically compensate for upstream fluctuations caused by changes in raw water quality or filter performance degradation, ensuring that the final effluent mineral content can stably reach the user-set value regardless of changes in influent conditions. At the same time, by independently controlling the two water paths, the system can respond to adjustment commands more flexibly and quickly, significantly improving the intelligence level of the water treatment equipment and the reliability of the personalized drinking water experience.

[0062] In one embodiment, a computer-readable storage medium is provided storing a computer program that, when executed by a processor, causes the processor to perform the following steps: Acquire the user-set preset mineral content and water output signal; The target mineral content in the first water pipe is obtained in response to the water outlet signal; The first control parameter of the first valve and the second control parameter of the second valve are determined based on the target mineral content and the preset mineral content. The first valve is controlled based on a first control parameter of the first valve, and the second valve is controlled based on a second control parameter of the second valve, so that the mineral content of the water discharged from the third water pipe is the preset mineral content.

[0063] By acquiring the target mineral content of the first water path in real time and using it as the core input parameter, combined with the user-set preset mineral content, the system calculates and controls the opening of two independent valves in a coordinated manner, achieving closed-loop precise control of the mixing ratio. It can automatically compensate for upstream fluctuations caused by changes in raw water quality or filter performance degradation, ensuring that the final effluent mineral content can stably reach the user-set value regardless of changes in influent conditions. At the same time, by independently controlling the two water paths, the system can respond to adjustment commands more flexibly and quickly, significantly improving the intelligence level of the water treatment equipment and the reliability of the personalized drinking water experience.

[0064] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments described above. Any references to memory, storage, databases, 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. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0065] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for preparing drinking water with adjustable mineral content, characterized in that, The method is applied to the water circuit of a water treatment device, which includes a first water circuit pipe, a second water circuit pipe, and a third water circuit pipe. The first water circuit pipe and the second water circuit pipe are respectively connected to the third water circuit pipe. A first valve is installed on the first water circuit pipe, and a reverse osmosis membrane and a second valve are installed on the second water circuit pipe. The method includes: Acquire the user-set preset mineral content and water output signal; The target mineral content in the first water pipe is obtained in response to the water outlet signal; The first control parameter of the first valve and the second control parameter of the second valve are determined based on the target mineral content and the preset mineral content. The first valve is controlled based on a first control parameter of the first valve, and the second valve is controlled based on a second control parameter of the second valve, so that the mineral content of the water discharged from the third water pipe is the preset mineral content.

2. The method for preparing drinking water with adjustable mineral content according to claim 1, characterized in that, The first water pipe is also equipped with an electric charge film. The step of obtaining the mineral content in the first water pipe in response to the water outlet signal includes: The mineral content of the water flowing through the charged membrane is obtained and used as the mineral content of the first water pipe.

3. The method for preparing drinking water with adjustable mineral content according to claim 1, characterized in that, The step of determining the first control parameter of the first valve and the second control parameter of the second valve based on the first mineral content includes: Calculate the target mixing ratio based on the preset mineral content and the first mineral content; Based on the target mixing ratio, the opening degree or flow rate setpoint of the first valve and the second valve are determined as the first control parameter and the second control parameter, respectively.

4. The method for preparing drinking water with adjustable mineral content according to claim 1, characterized in that, A water quality sensor is installed on the third water pipe. After the steps of controlling the first valve based on the first control parameter of the first valve and controlling the second valve based on the second control parameter of the second valve to make the mineral content of the water discharged from the third water pipe reach the preset mineral content, the method further includes: After controlling the first valve and the second valve based on the control parameters, the actual mineral content of the effluent is detected in real time by the water quality sensor; Based on the deviation between the actual effluent mineral content and the preset mineral content, the first control parameter and / or the second control parameter are dynamically adjusted until the actual effluent mineral content reaches the preset mineral content.

5. The method for preparing drinking water with adjustable mineral content according to claim 1, characterized in that, A mineralization device is also installed downstream of the third water pipeline to replenish the mixed water with trace elements of a preset type and content; the step of determining the first control parameter of the first valve and the second control parameter of the second valve based on the target mineral content and the preset mineral content includes: Based on the preset mineral content, the first mineral content, and the trace element supplementation amount of the mineralization device, the first control parameter and the second control parameter are determined so that the sum of the mineral content of the mixed water in the third water pipeline upstream of the mineralization device and the trace element supplementation amount reaches the preset mineral content.

6. The method for preparing drinking water with adjustable mineral content according to claim 1, characterized in that, A booster pump is also installed on the inlet side of the reverse osmosis membrane on the second water pipeline; in the step of determining the first control parameter of the first valve and the second control parameter of the second valve based on the target mineral content and the preset mineral content, the step of determining the second control parameter of the second valve includes: The booster pump is controlled to maintain a stable water flow pressure through the reverse osmosis membrane, thereby enabling the setting of the second control parameter for the second valve.

7. The method for preparing drinking water with adjustable mineral content according to claim 6, characterized in that, In the step of determining the first control parameter of the first valve and the second control parameter of the second valve based on the target mineral content and the preset mineral content, the step of determining the first control parameter of the first valve includes: The stable pressure and flow rate of the second water pipeline maintained by the booster pump are obtained in real time. The first control parameter of the first valve is dynamically set based on the preset mineral content, the first mineral content, and the stable pressure and flow rate of the second water pipeline.

8. A water treatment equipment control device, characterized in that, The device is used to control a water treatment equipment, the water treatment equipment comprising: a water treatment equipment water circuit, the water treatment equipment water circuit comprising: a first water circuit pipe, a second water circuit pipe, and a third water circuit pipe, the first water circuit pipe and the second water circuit pipe being respectively connected to the third water circuit pipe, the first water circuit pipe being provided with a first valve, the second water circuit pipe being provided with a reverse osmosis membrane and a second valve, the device being configured to implement the steps of the method for preparing drinking water with adjustable mineral content as described in any one of claims 1 to 7.

9. A computer-readable storage medium, characterized in that, The device contains a computer program that, when executed by a processor, causes the processor to perform the steps of the method for preparing drinking water with adjustable mineral content as described in any one of claims 1 to 7.

10. A water treatment device, characterized in that, The device includes a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of the method for preparing drinking water with adjustable mineral content as described in any one of claims 1 to 7.

Images