Control method and device of water treatment equipment, water treatment equipment and storage medium

Abstract

The invention relates to the technical field of water treatment equipment, and discloses a control method and device of water treatment equipment, the water treatment equipment and a storage medium, and the method comprises the following steps: when a preheating condition is met, controlling a first circulating pump to start and controlling a heater to work, so that a water body in a heat storage container is heated and maintained in a preheating temperature range; when a water taking instruction and the corresponding target water temperature are received, the multi-way flow adjusting valve is controlled, so that the flow proportion of water flow flowing out of the first water outlet and the second water outlet is adjusted according to the target water temperature; according to the deviation value between the actual water temperature fed back by the first temperature sensor of the water outlet and the target water temperature, the flow distribution of the multi-way flow adjusting valve to the first water outlet and the second water outlet is dynamically adjusted, so that the actual water temperature approaches and is stabilized at the target water temperature. According to the embodiment of the invention, when water is taken, rapid supply of high-temperature hot water can be realized, rapid, accurate and stable temperature control on non-high-temperature warm water requirements can be ensured, and the use experience of a user is improved.

Description

Technical Field

[0001] This invention relates to the field of water treatment equipment, and more particularly to a control method, apparatus, water treatment equipment, and storage medium for water treatment equipment. Background Technology

[0002] Traditional instant water treatment equipment (such as instant water dispensers) typically uses instant heating technology to rapidly heat room-temperature water as it flows through the user's cup. To achieve a wide range of adjustable outlet water temperatures, the heating unit needs sufficient power and a sensitive temperature control system. However, when a user requires a cup of water at a specific temperature (e.g., 40℃-60℃), the equipment needs to control the heating power at a lower level and precisely manage the water flow. In actual use, because inlet water temperature, water pressure, and flow rate can fluctuate, simply adjusting the heating power is insufficient to achieve a rapid and stable temperature response. This often results in large fluctuations in outlet water temperature and slow attainment of the set temperature, negatively impacting the user experience. Summary of the Invention

[0003] Based on this, it is necessary to address the technical problem that existing instant hot water treatment equipment cannot quickly and accurately supply warm water at the set temperature when users draw water. Therefore, a control method, device, water treatment equipment, and storage medium for water treatment equipment are proposed.

[0004] In a first aspect, a control method for a water treatment device is provided. The method is applied to the water treatment device, which includes a water production module connected by a water circuit, a heat storage container, a heater disposed in the heat storage container, a first circulation pump for driving water circulation, a first temperature sensor disposed at the outlet of the water treatment device, and a multi-way flow control valve. The inlet of the multi-way flow control valve is connected to the water production module, and the multi-way flow control valve includes at least a first outlet, a second outlet, and a third outlet. The first outlet is connected to a water replenishment path to the heat storage container, and the second outlet is connected to a mixing water circuit to the outlet. The methods include: When the preheating conditions are met, the first circulation pump is started and the heater is operated to heat the water in the heat storage container and maintain it within the preheating temperature range. Upon receiving a water intake command and the corresponding target water temperature, the multi-way flow control valve is controlled to adjust the flow rate ratio of the water flowing from the first outlet and the second outlet according to the target water temperature. Based on the deviation between the actual water temperature and the target water temperature fed back by the first temperature sensor at the outlet, the flow distribution of the multi-way flow regulating valve to the first and second outlets is dynamically adjusted so that the actual water temperature approaches and stabilizes at the target water temperature.

[0005] Secondly, a control device for a water treatment equipment is provided. The device is applied to the water treatment equipment and is configured to implement the steps of the control method for the water treatment equipment described above.

[0006] Thirdly, a water treatment device is provided, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the control method of the water treatment device described above.

[0007] Fourthly, a computer-readable storage medium is provided, which stores a computer program that, when executed by a processor, implements the steps of the control method for the water treatment equipment described above.

[0008] This application discloses a control method, apparatus, water treatment equipment, and storage medium for a water treatment device. The method includes: when preheating conditions are met, controlling the start of a first circulating pump and the operation of a heater to heat the water in the heat storage container and maintain it within the preheating temperature range; upon receiving a water intake command and a corresponding target water temperature, controlling a multi-way flow control valve to adjust the flow rate ratio of water flowing from the first outlet and the second outlet according to the target water temperature; and dynamically adjusting the flow distribution of the multi-way flow control valve to the first outlet and the second outlet based on the deviation between the actual water temperature fed back by a first temperature sensor at the outlet and the target water temperature, so that the actual water temperature approaches and stabilizes at the target water temperature. This application's embodiment, through a prior preheating strategy, allows the water in the heat storage container to reach a base temperature beforehand, thereby significantly shortening the waiting time from issuing the command to outputting the target high-temperature hot water. Based on this, a multi-channel flow control valve is used to precisely allocate the initial proportion of water flow to the water supply path and the mixing path of the heat storage container. Combined with real-time feedback of the outlet temperature, the flow rate of the two water flows is dynamically adjusted, forming a fast-response closed-loop control system. Thus, throughout the user's water intake process, not only can a rapid supply of high-temperature hot water be achieved, but also rapid, accurate and stable temperature control can be ensured for non-high-temperature warm water needs, significantly improving the user's immediate drinking water experience. Attached Figure Description

[0009] 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.

[0010] in: Figure 1 This is a flowchart of a control method for a water treatment device in one embodiment; Figure 2This is a water circuit diagram of a water treatment device after it is rotated 90 degrees clockwise in one embodiment. Figure 3 This is a schematic diagram of the structure of a water treatment device in one embodiment.

[0011] Description of the main units and components in this application: 1. Water treatment equipment; 11. Water production module; 12. Thermal storage container; 121. Heater; 13. First circulation pump; 14. First temperature sensor; 15. Multi-way flow control valve; 151. First outlet; 152. Second outlet; 153. Third outlet; 16. Heat exchanger; 17. Thick film heater; 18. Second temperature sensor; 19. Second circulation pump. Detailed Implementation

[0012] 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, not all, of the embodiments of the present invention. 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.

[0013] The water treatment equipment control method provided in this embodiment of the invention is applied to water treatment equipment 1. Please refer to [link / reference]. Figure 1 and Figure 2 Optionally, the water treatment device 1 includes: a water production module 11 connected to the water circuit, a heat storage container 12, a heater 121 disposed within the heat storage container 12, a first circulation pump 13 for driving water circulation, a first temperature sensor 14 disposed at the outlet, and a multi-way flow control valve 15; the inlet of the multi-way flow control valve 15 is connected to the water production module 11, and the multi-way flow control valve 15 includes at least a first outlet 151, a second outlet 152, and a third outlet 153; the first outlet 151 is connected to the water replenishment path of the heat storage container 12, and the second outlet 152 is connected to the mixing water path of the outlet. In addition, the water treatment device 1 also includes a control module, which is electrically connected to the water production module 11, the heater 121, the first circulation pump 13, the first temperature sensor 14, and the multi-way flow control valve 15.

[0014] Specifically, the water production module 11 is a functional module in the water treatment equipment 1 used to purify raw water (such as tap water) into pure water, and may include components such as pretreatment filter cartridge, booster pump, reverse osmosis (RO) membrane filter cartridge, and post-filter cartridge.

[0015] The heat storage container 12 is a container used to store a certain volume of water, and can be a heat tank for heating the water inside.

[0016] Heater 121 is an electric heating element, such as a PTC heating rod, installed inside the heat storage container 12 for directly heating the water inside.

[0017] The first circulation pump 13 is a water pump used to provide power to drive water to circulate in a specific pipeline.

[0018] The first temperature sensor 14 is a device installed at the outlet of the water treatment equipment to detect the temperature of the outflowing water in real time. It can be an NTC (negative temperature coefficient thermistor).

[0019] The multi-way flow control valve 15 is a control valve with one inlet and at least three outlets, capable of independently or proportionally adjusting the flow rate of each outlet.

[0020] The first outlet 151 is one of the outlets of the multi-way regulating valve 15. It is connected to the inlet of the thermal storage container 12 through a pipeline, forming a path to replenish the water source to the thermal storage container 12.

[0021] The second outlet 152 is another outlet of the multi-way regulating valve 15. Its water flows through the pipeline and merges with the hot water from the heat storage container 12, flowing together to the outlet to form a mixed water circuit.

[0022] The third outlet 153 is another outlet of the multi-way regulating valve 15, which can be used for other functional water circuits, such as connecting to the heat exchanger 16.

[0023] Optionally, the control module includes: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the water treatment equipment control method of this application.

[0024] The present invention will now be described in detail through specific embodiments.

[0025] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic flowchart of the control method for the water treatment device 1 provided in an embodiment of the present invention. Figure 2 This is a water circuit diagram for water treatment equipment 1. The above method is applied to water treatment equipment 1, and the method may include steps S11 to S13: Step S11: When the preheating conditions are met, control the first circulation pump 13 to start and control the heater 121 to work so that the water in the heat storage container 12 is heated and maintained within the preheating temperature range.

[0026] Among them, the preheating conditions are the criteria for triggering the system to execute the preheating program, which can be time conditions, temperature conditions, or conditions predicted based on user habits, etc.

[0027] The preheating temperature range is a temperature range, such as 50℃-55℃, that is intended to be maintained within the water body in the heat storage container 12 during the preheating process.

[0028] In this embodiment, the control module can continuously or periodically determine whether the preheating conditions have been met. The sources of preheating conditions can be varied, such as a system timer determining that the device is in an idle period during off-peak water usage, the first temperature sensor 14 detecting that the water temperature in the heat storage container 12 is below a certain threshold, or a learning algorithm based on historical user data predicting an upcoming hot water demand. Once the preheating conditions are determined to be met, the control module can issue a command to first start the first circulation pump 13, driving the water in the heat storage container 12 to flow along a preset circulation pipeline (e.g., flowing out of the heat storage container 12, through an external heat exchanger 16, and then back to the heat storage container 12), forming a circulation. Simultaneously, the control module supplies power to the heater 121 located inside the heat storage container 12 to start it working, heating the circulating water. To maintain the water temperature within the set preheating temperature range (e.g., 50℃-55℃), the control module can monitor the water temperature in real time through the first temperature sensor 14 (distinct from the outlet sensor) installed on the heat storage container 12 and feed this temperature back to the control module. The control module can compare this feedback temperature with the preset preheating temperature target value, and dynamically adjust the power of the heater 121 (such as on / off time or current magnitude) according to the deviation through control algorithms such as PID (Proportional-Integral-Derivative), thereby forming a closed-loop control. This allows the heat storage container 12 and its internal water to maintain a stable thermal ready state that is higher than the room temperature even during non-water intake periods, thereby significantly shortening the waiting time for users to obtain high-temperature hot water and achieving rapid response.

[0029] In this embodiment, the determination of preheating conditions can employ one or more combinations of various specific logics. As one implementation, the control module can acquire historical water intake records and analyze these records to obtain water intake pattern information; based on the water intake pattern information and the current time, it can predict the expected water intake temperature during the next preset water intake period; it can acquire the current water temperature in the thermal storage container; based on the expected water intake temperature and the current water temperature, it can calculate the preheating time required to preheat the current water temperature to the expected water intake temperature; if the preheating time is greater than the available time from the current time to the start time of the next preset water intake period, then the preheating condition is determined to be met. As another implementation, the preheating condition can be triggered based on a time period. For example, the control module can preset multiple high-frequency water usage periods (such as 7:00-8:00 AM, 12:00-1:00 PM, and 6:00-10:00 PM), and when the current time enters any of these preset periods, the preheating condition is determined to be met. As another implementation method, the preheating conditions can be determined based on the temperature threshold of the thermal storage container. For example, when the first temperature sensor detects that the current water temperature in the thermal storage container is lower than the preset preheating start threshold (such as 45°C), it is determined that the preheating conditions are met. The judgment logic of the above-mentioned various preheating conditions can be flexibly configured or combined according to the equipment energy efficiency strategy, user-defined settings, or the adaptive learning results of the control module to achieve precise control of the preheating start timing.

[0030] Step S12: Upon receiving a water intake command and the corresponding target water temperature, control the multi-way flow regulating valve 15 to adjust the flow rate ratio of the water flowing out from the first outlet 151 and the second outlet 152 according to the target water temperature.

[0031] The target water temperature is the desired water temperature set by the user through the operating interface (such as buttons or an app).

[0032] The flow ratio refers to the ratio between the instantaneous flow rates of water flowing from the first outlet 151 and the second outlet 152 of the multi-way flow control valve 15.

[0033] In this embodiment, after receiving the water intake command and the target temperature setpoint, the control module can calculate, based on the target water temperature, the current actual water temperature in the heat storage container 12 (which can be obtained by its own sensor), and possible water flow parameters, using the principle of heat balance, to quickly deduce the theoretically required flow rate of high-temperature hot water from the heat storage container 12 to achieve the target water temperature, and the total flow rate of ambient temperature water (i.e., water from the first outlet 151 and the second outlet 152) from the multi-way flow control valve 15. Furthermore, it determines how much flow should be allocated from the first outlet 151 (flowing to the heat storage tank for replenishment) and the second outlet 152 (directly participating in mixing) within this total ambient temperature flow, forming an initial flow ratio command. This flow ratio command is then converted into a specific opening control signal for the corresponding outlet solenoid valve or proportional valve in the multi-way flow control valve 15, driving the valve to operate so that the instantaneous flow rates of the two water streams flowing from the first and second outlets 152 conform to the initial ratio. This provides a pre-optimized hot and cold water mixing base that is close to the target water temperature at the moment water intake begins, thereby reducing initial water temperature deviation, laying the foundation for subsequent precise control, and improving the initial response speed of the equipment.

[0034] Step S13: Based on the deviation between the actual water temperature and the target water temperature fed back by the first temperature sensor 14 at the outlet, dynamically adjust the flow distribution of the multi-way flow regulating valve 15 to the first outlet 151 and the second outlet 152 so that the actual water temperature approaches and stabilizes at the target water temperature. The actual water temperature is the current outlet water temperature measured in real time by the first temperature sensor 14 installed at the outlet.

[0035] In this embodiment, the first temperature sensor 14, installed at the final outlet of the device, continuously and in real-time measures the actual temperature of the outflowing water and feeds this data back to the control module. The control module can calculate the instantaneous deviation between the actual water temperature and the target water temperature set by the user multiple times per second. Then, according to a preset control algorithm (such as a proportional-integral-derivative PID algorithm), the temperature deviation value is converted into an adjustment command for the multi-way flow control valve 15. Specifically, if the actual water temperature is lower than the target water temperature, an adjustment is generated to increase the contribution of hot water and decrease the contribution of cold water. Based on this, the control signal to the multi-way flow control valve 15 is dynamically adjusted to fine-tune the opening of the first outlet 151 and the second outlet 152, changing the flow distribution ratio of the two water flows, thereby increasing the proportion of hot water in the mixed water; conversely, if the actual water temperature is higher, the adjustment action is reversed. This forms a real-time negative feedback closed loop, which can actively and promptly offset the disturbances in the outlet water temperature caused by factors such as fluctuations in inlet water temperature, changes in water pressure, slight fluctuations in the power of heater 121, or user-adjusted flow rate. This ensures that the water temperature flowing from the faucet can quickly approach the target value set by the user and remain stably near that temperature, achieving high-precision constant temperature water output and greatly improving the comfort and stability of the water use experience.

[0036] This embodiment employs a preheating strategy to preheat the water in the heat storage container 12 to a base temperature, significantly reducing the waiting time from issuing the command to outputting the target high-temperature hot water. Furthermore, a multi-channel flow control valve 15 precisely distributes the initial proportions of water flow to the water supply path and mixing path leading to the heat storage container 12. Combined with real-time feedback of the outlet temperature, the flow rates of the two water paths are dynamically adjusted, forming a fast-response closed-loop control system. This ensures not only rapid supply of high-temperature hot water throughout the user's water intake process but also rapid, accurate, and stable temperature control for non-high-temperature warm water needs, significantly improving the user's immediate drinking water experience.

[0037] In some embodiments, controlling the multi-way flow control valve 15 to adjust the flow rate ratio of the water flowing from the first outlet 151 and the second outlet 152 according to the target water temperature may specifically include steps S21 and S22: S21: Based on the target water temperature and the current water temperature in the heat storage container 12, calculate the required hot water flow rate and the required total cold water flow rate of the first outlet 151 and the second outlet 152.

[0038] The required hot water flow rate refers to the instantaneous flow rate (unit: liters / minute) of high-temperature water that theoretically needs to flow out of the heat storage container 12 to reach the target water temperature.

[0039] The required total cold water flow rate of the first outlet 151 and the second outlet 152 refers to the total instantaneous flow rate of water that, theoretically, needs to be supplied through the first outlet 151 and the second outlet 152 of the multi-way flow control valve 15 to reach the target water temperature, without being directly heated by the heater 121 inside the heat storage container 12. This flow rate is the sum of the flow rates of the two outlets.

[0040] In this embodiment, the control module can first acquire the target water temperature set by the user and the current water temperature inside the heat storage container 12, which is measured in real time by the first temperature sensor 14 on the heat storage container 12. Simultaneously, it acquires the current ambient water temperature and the total water flow rate set by the user or preset by the system. Based on the principle of energy conservation, i.e., the total heat carried by the outflowing water should be equal to the sum of the heat carried by the mixed hot water and the heat carried by the cold water, a heat balance relationship is established. In this relationship, the target water temperature, the water temperature inside the heat storage container 12, the ambient water temperature, and the total flow rate are known quantities, while the hot water flow rate and the total cold water flow rate are unknown quantities. The control module can simultaneously calculate two results by solving the mathematical model constructed based on this heat balance relationship and the total flow rate conservation relationship (i.e., the sum of the hot water flow rate and the total cold water flow rate equals the total flow rate): one is the hot water flow rate theoretically required from the heat storage container 12 to reach the target water temperature, and the other is the sum of the cold water flow rates theoretically required through the first and second outlets 152 of the multi-way flow control valve 15 to achieve the mixing ratio.

[0041] S22: Based on the total cold water flow rate, determine the initial flow rate allocation values ​​for the first outlet 151 and the second outlet 152.

[0042] The initial flow distribution value refers to the initial flow target value or initial opening command set for the first outlet 151 and the second outlet 152 of the multi-way flow control valve 15 at the start of water intake, in order to control the initial output ratio of the two water flows.

[0043] In some implementations, the initial flow distribution values ​​for the first outlet 151 and the second outlet 152 are determined based on the total cold water flow rate, which may specifically include steps S31 to S35: Step S31: Obtain the preset fixed flow rate value for the third outlet 153 of the multi-way flow control valve 15.

[0044] The fixed flow rate value preset for the third outlet 153 refers to one or more constant water flow rates that are not changed in real time with the current water intake command, which are pre-set for the third outlet 153 of the multi-way regulating valve 15 that is connected to a specific functional pipeline (such as the water flowing through the heat exchanger 16).

[0045] In this embodiment, the control module can retrieve and read the corresponding flow rate value from the internally stored mapping relationship according to the currently activated working mode of the device.

[0046] Step S32: Determine the total cold water flow rate to be allocated to the first outlet 151 and the second outlet 152 based on the difference between the total cold water flow rate and the fixed flow rate value.

[0047] The total cold water flow to be allocated refers to the total cold water flow remaining after deducting the portion occupied by the third outlet 153 at a fixed flow rate, which can be freely allocated to the first outlet 151 and the second outlet 152 to achieve precise temperature mixing control.

[0048] In this embodiment, the control module compares and calculates the total cold water flow rate with the fixed flow rate value of the third outlet 153, and subtracts the fixed flow rate value from the total cold water flow rate to obtain a remaining flow rate value, which is the total cold water flow rate to be allocated.

[0049] Step S33: Calculate the initial flow distribution value of the first outlet 151 based on the target water temperature.

[0050] In this embodiment, the control module pre-stores strategy data reflecting the relationship between the target water temperature and the water replenishment demand. This data can be in the form of a lookup table or a calculation rule. For example, when the target water temperature is high, the strategy can instruct that most of the available cold water be used to replenish the thermal storage container 12 through the first outlet 151; when the target water temperature is warm, the strategy can instruct a more balanced distribution between water replenishment and direct mixing. The control module can query this strategy based on the current target water temperature to obtain an initial allocation ratio coefficient representing the share allocated to the first outlet 151.

[0051] Step S34: Determine the initial flow distribution value of the first outlet 151 based on the total cold water flow to be allocated and the initial allocation ratio.

[0052] In this embodiment, the control module can perform a core allocation calculation, multiplying the total cold water flow to be allocated by the initial allocation ratio. The result is the initial flow rate value that needs to be allocated from the total flow rate to the first outlet 151. This calculation process can transform an abstract allocation strategy into a specific, executable physical quantity setpoint. This generates a precise digital command for the actuator of the multi-way flow control valve 15 to control the first outlet 151.

[0053] Step S35: Determine the initial flow rate of the second outlet 152 based on the total cold water flow rate to be allocated and the initial flow rate value of the first outlet 151.

[0054] In this embodiment, after determining the initial flow rate allocated to the first outlet 151, the control module can obtain the remaining flow rate by subtracting the initial flow rate value of the first outlet 151 from the total cold water flow rate to be allocated. This remaining flow rate can then be determined as the initial flow rate value of the second outlet 152. Thus, all cold water flow resources available for temperature mixing control are fully allocated to the first and second outlets 152.

[0055] This application's implementation method, by acquiring the fixed functional flow rate, calculating the net adjustable flow rate, and determining the internal distribution ratio based on the water temperature strategy, ultimately achieves precise calculation of the initial flow rate at each outlet, realizing refined and decoupled initial control in complex multi-channel coupled systems. It not only ensures the accuracy of the mixing temperature control model by subtracting the fixed flow distribution, but also intelligently links the water temperature target with the internal flow distribution strategy, enabling the equipment to collaboratively optimize temperature response speed and equipment operational stability.

[0056] In some embodiments, the water treatment device 1 further includes a heat exchanger 16, one inlet of which is connected to a third outlet 153, and the other inlet of which is connected to a heat storage container 12. The heat exchanger 16 is used to exchange heat between the water flowing out of the heat storage container 12 and the water flowing out of the first outlet 151. The above method further includes the following steps: Before entering the preheating condition or water intake mode, a preset fixed flow rate value is set for the third outlet 153 of the multi-way flow control valve 15.

[0057] Among them, the heat exchanger 16 is a device with two independent physical flow channels inside, which allows two fluids to exchange heat without mixing with each other, and is used to realize the transfer of heat energy between different water flows.

[0058] Water intake mode refers to the entire working state of the equipment from receiving the user's water intake command to completing the water intake and shutting off the water supply.

[0059] In this embodiment, the control module can set a preset fixed flow rate value before performing the two core functions of preheating or water intake. The preset fixed flow rate value for the third outlet 153 is based on the currently selected high-level operation strategy of the equipment. This strategy can be explicitly selected by the user through the operation interface (such as "deep energy saving", "standard", "fast response" mode, etc.), or it can be adaptively selected by the control module based on ambient temperature, historical energy efficiency data, or time period. According to the selected strategy, the controller accesses its internally stored strategy-parameter mapping table and retrieves the recommended flow rate value for the third outlet 153 that uniquely corresponds to the strategy. Subsequently, the controller converts this flow rate value into a corresponding, precise control signal (e.g., a specific pulse width modulation (PWM) duty cycle or analog current value) and outputs this signal to the actuator (such as a proportional solenoid valve) in the multi-way flow control valve 15 that drives the opening of the third outlet 153, thereby fixing the valve opening at a position that can generate the target constant flow rate. Before starting any variable or dynamic heating or mixing process, a stable operating condition for a dedicated water circuit for heat management and recovery is established and solidified. By setting the water flow rate to a fixed value that is decoupled from the main control loop, the heat exchanger 16 is ensured to exchange heat at a constant and optimal flow rate throughout the subsequent operating phases, thereby providing a stable, reliable and efficient heat transfer condition for circulating water cooling / heat recovery in the preheating phase or for makeup water preheating in the water intake phase.

[0060] In some specific embodiments, the water treatment device 1 further includes a thick film heater 17, a second temperature sensor 18, and a second circulation pump 19. One inlet of the thick film heater 17 is connected to the heat storage container 12, and one outlet of the thick film heater 17 is connected to the same inlet of the heat exchanger 16 and the heat storage container 12. The second temperature sensor 18 and the second circulation pump 19 are arranged on the water path connecting the thick film heater 17 and the heat storage container 12. When the preheating conditions are met, the first circulation pump 13 is started and the heater 121 is operated to heat the water in the heat storage container 12 and maintain it within the preheating temperature range. Specifically, this may include steps S41 to S43: Step S41: Control the first circulation pump 13 and the second circulation pump 19 to start, so as to drive the water in the heat storage container 12 to circulate and drive the water in the heat storage container 12 to flow through the thick film heater 17 and the heat exchanger 16, respectively.

[0061] Among them, the thick film heater 17 is an instantaneous fluid heating element. Its core is to make a resistance heating circuit and fluid flow channel on an insulating substrate such as ceramic through a thick film process, which can quickly and efficiently heat the liquid that flows through it.

[0062] The second circulation pump 19 is a dedicated water pump that is independent of the circulation pump (i.e., the first circulation pump 13) that drives the main circulation inside the heat storage container 12. It is installed on the water inlet of the thick film heater 17. Its function is to provide power to drive a stream of water to flow out of the heat storage container 12 and flow through the designated flow channels of the thick film heater 17 and the heat exchanger 16 in sequence, forming an independently controllable preheating branch circulation.

[0063] In this embodiment, after determining that the preheating conditions are met, the control module can generate and simultaneously output two control commands. The first command drives the first circulation pump 13 to operate, which circulates the water inside the heat storage container 12. The main purpose of this circulation is to make the water temperature distribution in the container uniform, avoid local overheating near the heater 121, and enhance the heat exchange efficiency inside the heat storage container 12, thus establishing a stable basic heat source for the entire system. At the same time, the second command drives the second circulation pump 19 to operate. This pump draws a portion of water from the heat storage container 12 and provides it with an independent and adjustable driving force, forcing this water flow into and through a dedicated preheating branch. This branch includes, in sequence, the monitoring point of the second temperature sensor 18, the flow channel inside the thick film heater 17, and a specific flow channel in the heat exchanger 16 that communicates with the heat storage container 12. After completing the heat exchange, the water flows back to the system.

[0064] In step S42, the heater 121 and the thick film heater 17 are started, and the temperature feedback from the second temperature sensor 18 is obtained.

[0065] The second temperature sensor 18 is a temperature detection device located in the water path near the inlet of the thick film heater 17, used to monitor the water flow temperature before entering the thick film heater 17 in real time.

[0066] In this embodiment, upon startup of the water pump, the control module can output parallel heating control commands. One command energizes the heater 121 inside the heat storage container 12, initiating basic heating of all the water stored in the heat storage container 12, thereby raising and maintaining the temperature of the basic heat source. The other command energizes the thick-film heater 17, enabling it to immediately and actively assist in heating the branch water flowing through its internal channels, thus significantly accelerating the temperature rise of the thick-film heater 17 from room temperature to its operating temperature. Simultaneously with heating startup, the control module continuously reads the real-time measurement value from the second temperature sensor 18 at a high sampling frequency (e.g., 10 times per second) and converts it into a digital temperature signal. This temperature value is a key parameter reflecting the temperature of the water flowing out of the heat storage container 12 and about to enter the thick-film heater 17 for final preheating.

[0067] Step S43: Based on the temperature feedback from the second temperature sensor 18, adjust the power of the heater 121 and the power of the thick film heater 17 so that the water in the heat storage container 12 and the water flowing through the thick film heater 17 are heated and maintained within the preheating temperature range.

[0068] In this embodiment, the control module can compare the temperature feedback from the second temperature sensor 18 with a preset, unified preheating temperature range target value to calculate the deviation between the current branch inlet water temperature and the target. Specifically, the control module has a pre-stored collaborative control algorithm that can simultaneously calculate the power adjustment amount for both the main heater 121 and the thick film heater 17 in the thermal storage container 12 based on this temperature deviation. The specific algorithm strategy can be designed as follows: When the feedback temperature is far below the target, indicating that the overall system thermal state is insufficient, the algorithm will instruct a significant increase in the power of the main heater 121 of the heat storage container 12 to quickly raise the base temperature of the heat source, while simultaneously instructing the thick film heater 17 to operate at medium or high power to quickly heat itself and the flowing water; when the feedback temperature approaches the target, the algorithm will reduce the power of the main heater 121 to a maintenance level and switch to finely adjusting the power of the thick film heater 17 to accurately compensate for the heat loss of the thick film heater 17 branch, achieving precise constant temperature; throughout the process, the algorithm ensures that the power changes of the two heaters 121 are coordinated. For example, when rapid heating is required, the power of both increases in the same direction, but the increase ratio may be allocated according to different thermal inertia. Based on the algorithm output, the control module generates two independent power control signals in real time to synchronously adjust the operating power of the main heater 121 and the thick film heater 17. By using a collaborative control law and utilizing temperature feedback at a key point, the output of the two heat sources is intelligently controlled, thereby efficiently and evenly heating and maintaining the base water in the heat storage container 12 and the branch water flowing through the thick film heater 17 (including the thick film heater 17 itself) as a whole system at a uniform ideal preheating temperature, thus achieving system-level global thermal optimization.

[0069] The embodiments of this application, through the coordinated allocation of the power of the two heat sources, can intelligently allocate heating tasks according to the thermal state of the system. This not only ensures the core objective of quickly preheating the thick film heater 17 and its water circuit, but also indirectly stabilizes the branch water temperature by adjusting the main heat source. Thus, in a simpler and more reliable way, it achieves uniform and efficient preheating of the entire water circuit system from the thermal storage core to the instantaneous heating terminal.

[0070] In some embodiments, based on the deviation between the actual water temperature fed back by the first temperature sensor 14 at the outlet and the target water temperature, the flow distribution of the multi-way flow regulating valve 15 to the first outlet 151 and the second outlet 152 is dynamically adjusted, which may specifically include steps S51 to S53: Step S51: Calculate the flow rate regulation coefficient based on the deviation between the actual water temperature and the target water temperature.

[0071] The flow regulation coefficient is an intermediate parameter used to guide the direction and magnitude of flow regulation. It reflects the intensity or magnitude of flow regulation required to eliminate the current temperature deviation.

[0072] In this embodiment, during water intake, the control module can sample the signal from the first temperature sensor 14 located at the outlet at a high frequency (e.g., 10 times per second) to obtain the latest actual water temperature. This temperature temperature is then subtracted from the user-set target water temperature to obtain a real-time temperature deviation value. This deviation value is then input into a preset adjustment algorithm to calculate the flow rate adjustment coefficient. This algorithm can be a control law, such as a proportional control law, where the adjustment coefficient equals the deviation value multiplied by a preset proportional gain constant; or a more complex proportional-integral-derivative control law, where the adjustment coefficient is a weighted sum of the deviation value itself, its historical cumulative value, and its rate of change.

[0073] Step S52: Calculate the flow adjustment value of the first outlet 151 and the flow adjustment value of the second outlet 152 according to the flow adjustment coefficient.

[0074] The flow adjustment value refers to the specific amount of flow change required to increase or decrease the current flow rate at a particular outlet. It is a positive or negative value; a positive value indicates an increase in flow rate, and a negative value indicates a decrease in flow rate.

[0075] In this embodiment, after obtaining the flow regulation coefficient, the control module can convert it into operating instructions for the first and second outlets 152. Specifically, the control module internally defines a flow distribution strategy. This strategy clarifies how the flow regulation coefficient is decomposed into the flow changes of the two outlets. A typical strategy is complementary regulation: when a higher water temperature is needed (the deviation is negative, the actual water temperature is too low), the strategy instructs that the contribution of hot water should be increased, that is, the flow rate of the first outlet 151 flowing to the water supply path of the heat storage container 12 should be increased, while the flow rate of the second outlet 152 used for direct mixing should be reduced by an equal amount or proportionally, so as to keep the total flow rate approximately stable or change as needed. The control module can multiply the flow regulation coefficient by a conversion gain for the first outlet 151 to obtain the flow adjustment value of the first outlet 151 (for example, when the coefficient is positive, the adjustment value is positive, indicating that the flow rate needs to be increased). At the same time, this coefficient is multiplied by another conversion gain for the second outlet 152, which is usually opposite in sign, to obtain the flow adjustment value for the second outlet 152 (for example, when the coefficient is positive, this adjustment value is negative, indicating that the flow needs to be reduced).

[0076] Step S53: Adjust the multi-way flow control valve 15 according to the flow adjustment value of the first outlet 151 and the current flow to change the flow distribution of the first outlet 151, and adjust the multi-way flow control valve 15 according to the flow adjustment value of the second outlet 152 and the current flow to change the flow distribution of the second outlet 152.

[0077] In this embodiment, for the first outlet 151, the control module can read its current flow rate and then algebraically add it to the calculated flow adjustment value of the first outlet 151. The result of the addition is the adjusted flow rate of the first outlet 151. Similarly, for the second outlet 152, the control module can algebraically add its current flow rate to the flow adjustment value of the second outlet 152 to obtain a new target flow rate value after adjustment of the second outlet 152. Subsequently, these two new target flow rate values ​​are converted into real-time control signals for the actuators (such as stepper motors or proportional solenoid valves) in the multi-way flow control valve 15 that control the opening of the first outlet 151 and the second outlet 152 through a specific drive circuit, thereby changing the valve opening and causing the actual output flow rates of the two outlets to tend towards the new set values.

[0078] This application elevates empirical temperature regulation into a precise, reliable, and responsive automatic control method. By calculating the flow regulation coefficient in real time, which strictly corresponds to the deviation, it ensures that the intensity of each adjustment action matches the severity of the current temperature error, achieving a balance between rapid response and overshoot suppression. By coordinating and decomposing a single coefficient into complementary adjustment values ​​for the two outlets, it guarantees the systematic nature and hydraulic stability of the regulation action. Finally, by immediately applying the adjustment value to the flow actuator, it significantly improves the system's ability to maintain a constant outlet water temperature under disturbances such as changes in water pressure and inlet water temperature, providing users with a precise and comfortable water usage experience.

[0079] In some embodiments, the above method further includes steps S61 to S63: Step S61: Based on the deviation between the actual water temperature and the target water temperature, determine the direction and range of the heating power adjustment of the heater 16.

[0080] The direction of heating power adjustment refers to the trend that needs to change the output power of heater 121, which can specifically include two directions: increasing power and decreasing power.

[0081] The heating power adjustment range refers to the specific numerical value or level at which the output power of heater 121 needs to be changed in a given adjustment direction.

[0082] In this embodiment, the control module first analyzes the sign (positive or negative) of the deviation to determine the adjustment direction: if the actual water temperature is lower than the target water temperature (negative deviation), it is determined that the power needs to be increased to improve the heat source output; if the actual water temperature is higher than the target water temperature (positive deviation), it is determined that the power needs to be decreased. After determining the direction, the control module can further calculate the adjustment amplitude based on the absolute value of the deviation by querying a preset mapping table or applying a specific control algorithm function. For example, in simple proportional control, the adjustment amplitude can be directly equal to the absolute value of the deviation multiplied by a power proportional coefficient; in more complex algorithms, the amplitude can simultaneously consider the cumulative amount and rate of change of the deviation. Through this process, the control module can convert the temperature error into a clear power adjustment command, thereby providing a direct and quantitative basis for adjusting the output of the heater 121, ensuring that the trend and magnitude of the power change are accurately matched with the severity of the current temperature error.

[0083] Step S62: Calculate the target power of heater 121 based on the direction and magnitude of the heating power adjustment and the current power of heater 121.

[0084] The target power of heater 121 refers to the new power value that heater 121 is expected to achieve and maintain.

[0085] In this embodiment, after obtaining the adjustment direction and adjustment range, the control module can calculate the final power setpoint based on the current power of the heater 121. The specific calculation process can be direct algebraic operation: if the adjustment direction is increasing, the current power is added to the adjustment range to obtain a new, larger power value as the target power; if the adjustment direction is decreasing, the adjustment range is subtracted from the current power to obtain a new, smaller target power. To ensure safety and equipment lifespan, the control module can compare the calculation result with the minimum and maximum allowable power limits of the heater 121 and perform amplitude limiting to ensure that the final target power is within a safe operating range.

[0086] Step S63: Control heater 121 to operate at the target power.

[0087] In this embodiment, the control module can generate a corresponding drive control signal based on the target power value and the type and operating characteristics of the heater 121. For example, for a PTC (Positive Temperature Coefficient) heater 121 or a resistance heater 121, the controller can change its average input power by adjusting the voltage applied across its terminals or by using pulse width modulation technology; for other types of heating elements, a corresponding drive method is used.

[0088] This application's implementation introduces independent closed-loop control of the heater 121's power, which, in conjunction with flow regulation, constructs a dual-loop temperature control system, significantly enhancing the equipment's ability to cope with complex operating conditions and long-term disturbances. Flow regulation primarily alters the instantaneous mixing ratio of hot and cold water, offering a fast response, but it is somewhat dependent on the stability of the heat source temperature. In contrast, heater 121 power regulation directly controls the energy output of the heat source, fundamentally compensating for fluctuations in the hot water tank temperature or continuous changes in heat load. The combination of these two systems allows the equipment to not only quickly correct short-term temperature fluctuations caused by sudden changes in flow rate and water pressure, but also effectively offset long-term temperature drift caused by prolonged water intake leading to a drop in the temperature of the heat storage container 12, or by changes in environmental heat dissipation. This achieves higher precision and stronger robustness in constant temperature control under a wider range of operating conditions, significantly improving the stability and consistency of the user experience.

[0089] In some specific embodiments, the above method may further include steps S71 to S75: Step S71: Obtain historical water intake records and analyze the water intake pattern information based on the historical water intake records.

[0090] Among them, historical water intake records refer to a structured data set of past user water intake events stored in the controller of water treatment equipment 1 or the associated cloud server. Each record contains at least the time when the water intake operation occurred (time stamp), and may also contain the target water temperature value set for that water intake.

[0091] In this embodiment, the control module can access its non-volatile memory or cloud database to read historical water extraction records accumulated by the device over a relatively long period (such as the past few weeks), marked with timestamps and target water temperature. Data analysis algorithms are then performed on this data. Specifically, this can be time series analysis and cluster statistics. For example, the control module can divide a day into several time periods (such as by hour), and then statistically analyze the frequency of water extraction events occurring within each same time period, as well as the distribution of different target water temperatures set by the user within these events (such as average, mode, or temperature range). Through analysis, the control module can obtain regular conclusions such as "the probability of water extraction is 80% during the period from 07:00 to 08:00 every day, and the mode of the set water temperature during this period is 92℃," and these conclusions are structured and stored as water extraction pattern information.

[0092] Step S72: Based on the water intake pattern information and the current time, predict the expected water intake temperature in the next preset water intake period.

[0093] Among them, water intake pattern information is used to characterize the regularity of user habits.

[0094] In this embodiment, the control module first obtains the current precise system date and time. Then, it queries water extraction pattern information to find the next preset time period with a high probability of water extraction (e.g., 70%) adjacent to the current time. The preset time period can be divided according to actual conditions, such as by hour or by time periods like morning, noon, and evening. For example, if the current time is 5:00 AM, and the pattern information shows that 7-8:00 AM is a high-frequency water extraction period, then "7-8:00 AM" is identified as the next preset water extraction period. The control module can then extract the typical water temperature characteristics corresponding to this high-frequency time period from the pattern information, such as the "target water temperature mode" or "average water temperature" for that period, and directly use this value as the predicted value of the "expected water extraction temperature."

[0095] Step S73: Obtain the current water temperature inside the thermal storage container 12.

[0096] In this embodiment of the application, the control module can directly obtain the current actual temperature of the water in the thermal storage container 12 by reading the real-time measurement value of the first temperature sensor 14 installed on the thermal storage container 12.

[0097] Step S74: Calculate the preheating time required to preheat the current water temperature to the expected water temperature based on the expected water intake temperature and the current water temperature.

[0098] In this embodiment, the control module can compare the expected water intake temperature with the current water temperature in the thermal storage container 12 and calculate the temperature difference between them. Based on this temperature difference, the rated power of the heater 121, the capacity of the thermal storage container 12, and the estimated system thermal efficiency, and other known or empirical parameters, the module uses an internally stored algorithm model to calculate the theoretically required time to raise the current water temperature to the expected temperature, i.e., the preheating time. The specific calculation can be based on a simplified formula, for example, the preheating time equals (required temperature rise multiplied by water specific heat capacity multiplied by water volume) divided by (heater 121 power multiplied by efficiency).

[0099] Step S75: If the preheating time is greater than the available time from the current moment to the start time of the next preset water intake period, then the preheating condition is met.

[0100] In this embodiment, the control module calculates the time interval from the current moment to the start time of the next preset water usage period to obtain the available time. Then, it compares the calculated preheating time with this available time. If the preheating time exceeds the remaining time until the predicted water usage period, it means that if preheating does not begin immediately, the water temperature will not reach the user's expected temperature when the predicted water usage time arrives, thus affecting the user experience. Therefore, the control module determines that the preheating conditions are met and triggers the preheating procedure. Conversely, if the preheating time is less than or equal to the available time, it means that preheating can be started later, thereby saving unnecessary insulation energy consumption.

[0101] This application's implementation method introduces user habit learning based on historical data mining, prediction of future temperature demand, and intelligent judgment logic based on time constraints. It transforms the triggering of preheating conditions from a simple static threshold judgment into a dynamic decision-making process. It can proactively adapt to the user's unique life rhythm and only start preheating when there is a real need and time is tight. This ensures that users can obtain hot water at the expected time in the future and completely eliminates waiting time. At the same time, it minimizes the energy consumption caused by the equipment performing ineffective preheating and heat preservation during idle periods when no water is needed. It fundamentally solves the irreconcilable contradiction between response speed and energy consumption in traditional preheating strategies.

[0102] In one embodiment, a control device for a water treatment device 1 is provided, the device being configured to implement the steps of the control method for the water treatment device 1 described above.

[0103] This embodiment employs a preheating strategy to preheat the water in the heat storage container 12 to a base temperature, significantly reducing the waiting time from issuing the command to outputting the target high-temperature hot water. Furthermore, a multi-channel flow control valve 15 precisely distributes the initial proportions of water flow to the water supply path and mixing path leading to the heat storage container 12. Combined with real-time feedback of the outlet temperature, the flow rates of the two water paths are dynamically adjusted, forming a fast-response closed-loop control system. This ensures not only rapid supply of high-temperature hot water throughout the user's water intake process but also rapid, accurate, and stable temperature control for non-high-temperature warm water needs, significantly improving the user's immediate drinking water experience.

[0104] In one embodiment, see Figure 3 A water treatment device 1 is proposed. The water treatment device 1 includes a memory 102, a processor 101, and a computer program 103 stored in the memory and executable on the processor. When the processor 101 executes the computer program 103, it implements the steps of the control method of the water treatment device 1 described above.

[0105] In one embodiment, a computer-readable storage medium is provided, which stores a computer program that, when executed by a processor, implements the steps of the control method for the water treatment device 1 described above.

[0106] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. 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 may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of 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 memory bus dynamic RAM (RDRAM), etc.

[0107] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is used as an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0108] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A control method for a water treatment device, characterized in that, The method is applied to a water treatment device, which includes a water production module connected by a water circuit, a heat storage container, a heater installed in the heat storage container, a first circulation pump for driving water circulation, a first temperature sensor installed at the outlet of the water treatment device, and a multi-way flow control valve; the inlet of the multi-way flow control valve is connected to the water production module, and the multi-way flow control valve includes at least a first outlet, a second outlet, and a third outlet; The first outlet is connected to the water supply path of the thermal storage container, and the second outlet is connected to the mixing water path of the outlet. The method includes: When the preheating conditions are met, the first circulating pump is started and the heater is operated to heat the water in the heat storage container and maintain it within the preheating temperature range. Upon receiving a water intake command and the corresponding target water temperature, the multi-way flow control valve is controlled to adjust the flow rate ratio of the water flowing out from the first outlet and the second outlet according to the target water temperature. Based on the deviation between the actual water temperature fed back by the first temperature sensor at the outlet and the target water temperature, the flow distribution of the multi-way flow regulating valve to the first outlet and the second outlet is dynamically adjusted so that the actual water temperature approaches and stabilizes at the target water temperature.

2. The control method for the water treatment equipment according to claim 1, characterized in that, The method of controlling the multi-way flow regulating valve to adjust the flow rate ratio of the water flowing out from the first outlet and the second outlet according to the target water temperature includes: Based on the target water temperature and the current water temperature in the heat storage container, calculate the required hot water flow rate and the required total cold water flow rate of the first and second outlets; Based on the total cold water flow rate, the initial flow rate allocation values ​​for the first outlet and the second outlet are determined.

3. The control method for the water treatment equipment according to claim 2, characterized in that, The step of determining the initial flow distribution values ​​for the first and second outlets based on the total cold water flow rate includes: Obtain the preset fixed flow rate value for the third outlet of the multi-way flow control valve; The total cold water flow rate to be allocated to the first outlet and the second outlet is determined based on the difference between the total cold water flow rate and the fixed flow rate value. Calculate the initial distribution ratio of the flow rate at the first outlet based on the target water temperature; The initial flow allocation value of the first outlet is determined based on the total cold water flow to be allocated and the initial allocation ratio. The initial flow allocation value of the second outlet is determined based on the total cold water flow to be allocated and the initial flow value of the first outlet.

4. The control method for the water treatment equipment according to claim 1, characterized in that, The water treatment equipment further includes a heat exchanger, one inlet of which is connected to the third outlet, and the other inlet of which is connected to the heat storage container. The heat exchanger is used to exchange heat between the water flowing out of the heat storage container and the water flowing out of the first outlet. The method further includes: Before entering the preheating condition or water intake mode, a preset fixed flow rate value is set for the third outlet of the multi-way flow regulating valve.

5. The control method for the water treatment equipment according to claim 4, characterized in that, The water treatment equipment also includes a thick film heater, a second temperature sensor, and a second circulation pump. One inlet of the thick film heater is connected to the heat storage container, and one outlet of the thick film heater is connected to the same inlet of the heat exchanger and the heat storage container. The second temperature sensor and the second circulation pump are disposed on the water path connecting the thick film heater and the heat storage container. When the preheating conditions are met, controlling the first circulating pump to start and controlling the heater to operate, so that the water in the heat storage container is heated and maintained within the preheating temperature range, includes: The first circulation pump and the second circulation pump are started to drive the water in the heat storage container to circulate and drive the water in the heat storage container to flow through the thick film heater and the heat exchanger, respectively. The heater and the thick film heater are started, and the temperature feedback from the second temperature sensor is obtained; Based on the temperature feedback from the second temperature sensor, the power of the heater and the power of the thick film heater are adjusted so that the water in the heat storage container and the water flowing through the thick film heater are both heated and maintained within the preheating temperature range.

6. The control method for the water treatment equipment according to claim 1, characterized in that, The step of dynamically adjusting the flow distribution of the multi-channel flow control valve to the first and second outlets based on the deviation between the actual water temperature fed back by the first temperature sensor at the outlet and the target water temperature includes: The flow rate regulation coefficient is calculated based on the deviation between the actual water temperature and the target water temperature. Based on the flow rate adjustment coefficient, calculate the flow rate adjustment value of the first outlet and the flow rate adjustment value of the second outlet; Based on the flow adjustment value of the first outlet and the current flow, the multi-way flow regulating valve is adjusted to change the flow distribution of the first outlet, and based on the flow adjustment value of the second outlet and the current flow, the multi-way flow regulating valve is adjusted to change the flow distribution of the second outlet.

7. The control method for the water treatment equipment according to claim 1, characterized in that, The method further includes: Based on the deviation between the actual water temperature and the target water temperature, the direction and magnitude of the heating power adjustment of the heater are determined; The target power of the heater is calculated based on the direction and magnitude of the heating power adjustment and the current power of the heater. Control the heater to operate at the target power.

8. A control device for a water treatment equipment, characterized in that, The device is applied to a water treatment equipment and is configured to implement the steps of the control method for the water treatment equipment as described in any one of claims 1 to 7.

9. A water treatment device, characterized in that, The water treatment device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the control method of the water treatment device as described in any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the control method for the water treatment equipment as described in any one of claims 1 to 7.

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