Liquid handling system and method of controlling, control device, readable storage medium thereof

Abstract

The application provides a liquid treatment system and a control method, a control device and a readable storage medium thereof. The liquid treatment system comprises a preheating assembly and a heating assembly. The preheating assembly is used for accumulating heat and preheating liquid passing through the preheating assembly by using the accumulated heat. The heating assembly is used for reheating the liquid preheated by the preheating assembly. The control method comprises the following steps: obtaining the temperature of the liquid preheated by the preheating assembly during liquid output; and controlling the liquid to pass through the heating assembly at a speed greater than a set flow rate when the temperature of the preheated liquid is greater than or equal to a first set temperature. The preheating assembly is arranged to preheat the liquid, thereby solving the problem of low liquid output rate and easy flow interruption of the existing liquid treatment system. Meanwhile, when the preset temperature is greater than the first set temperature during heating of the liquid output, the speed of the liquid passing through the heating assembly can be increased under the condition of preset large-flow water output, so that larger-flow water output can be achieved.

Description

Technical Field

[0001] This application belongs to the field of liquid heating, and more specifically, relates to a liquid handling system and its control method, control device, and readable storage medium. Background Technology

[0002] In daily life, people have a habit of drinking cooled boiled water. Modern instant water heaters can quickly heat water. However, according to electrical safety regulations, the maximum power of household tabletop water dispensers is limited to 2300W. Theoretically, in a direct drinking water dispenser scenario, this power can heat room temperature water (7.3g / s) to boiling. However, due to losses in electric heating efficiency and heat energy utilization, the current water flow rate of direct drinking water dispensers is typically less than 6.5g / s. This results in a low water flow rate in existing tabletop water dispensers and similar products, making them prone to flow interruptions and thus affecting the user experience.

[0003] Therefore, designing a new liquid treatment system capable of producing large volumes of water has become an urgent problem to be solved. Summary of the Invention

[0004] The present invention aims to solve or improve at least one of the above-mentioned technical problems.

[0005] A first aspect of the present invention is to provide a control method for the above-described liquid handling system.

[0006] A second aspect of the present invention is to provide a control device for a liquid handling system.

[0007] A third aspect of the invention is to provide a control device for another liquid handling system.

[0008] A fourth aspect of the present invention is to provide a readable storage medium.

[0009] A fifth aspect of the present invention is to provide a liquid handling system.

[0010] The first aspect of the present invention provides a control method for a liquid processing system. The liquid processing system includes a preheating component and a heating component. The preheating component is used to store heat and can use the stored heat to preheat the liquid passing through the preheating component. The heating component is used to reheat the liquid preheated by the preheating component. The control method includes: during the liquid discharge process, obtaining the temperature of the liquid after preheating by the preheating component; and when the temperature of the preheated liquid is greater than or equal to a first set temperature, controlling the liquid to pass through the heating component at a first flow rate, wherein the first flow rate is greater than the set flow rate.

[0011] The liquid handling system provided by the present invention includes a preheating component and a heating component. The preheating component is connected to a liquid supply port, etc., and its purpose is to accumulate heat when the user is not using water or other liquids, i.e., during idle and non-heating periods. Then, when the user needs water or other liquids, the pre-stored energy is used to preheat the liquid supplied by the liquid supply port, etc., to a certain temperature. The preheated liquid then enters the heating component and is rapidly heated to boiling. The liquid heated to boiling is discharged through a liquid outlet component, or it can undergo heat exchange or be combined with other liquids before being discharged. In this scheme, a first set temperature can be set according to actual needs; that is, exceeding this temperature increases the heating rate of the liquid through the heating component. At the first set temperature, the heating component can heat the set flow rate of water to boiling without full power. Generally, the heating power of the heating component is relatively small at this time, usually less than the difference between the target power value and the full power value of the preheating component. That is, at this time, the preheating component can basically store heat at full power. Therefore, it can be assumed that when the preheated liquid reaches the first set temperature, if the heating component uses the difference between the target power value and the full power value of the preheating component, it can heat the liquid at the set flow rate just to the target temperature (generally the boiling temperature). Therefore, when heating the liquid, if the preheated temperature exceeds this first set temperature, it indicates that the heating component can heat the water to boiling with less power. This also means the system can heat a larger flow rate of water to boiling. Therefore, under the set flow rate (i.e., a preset high flow rate for water output), the speed of the liquid flowing through the heating component can be increased to a first flow rate greater than the set flow rate, in order to achieve a larger flow rate of heating and water output. For example, if the preheating component has a particularly strong preheating capacity, or the water source temperature is relatively high, the water output flow rate can be increased to the first flow rate to improve the user experience. Since the preheating component generally has a strong preheating capacity when it is just saturated with heat, the water output flow rate can be appropriately increased at this stage to achieve a larger flow rate of water output. Meanwhile, this system can store and accumulate heat in advance through the preheating component during idle periods. When users use water or other liquids, the preheating component uses this stored heat to preheat the liquid. During the preheating stage, the preheating component does not consume power to preheat the liquid. Therefore, the total heating power of the liquid handling system is the power of the heating component. This allows for higher heating efficiency with lower power. For the same heating component power, more liquids can be heated to boiling simultaneously, thereby increasing the liquid dispensing rate of the liquid handling system and solving the problems of low dispensing rate and easy interruption of flow in existing household desktop water dispensers.

[0012] In this application, the state of the liquid handling system being heated or not is defined by whether the heating components or preheating components are discharging liquid, or whether the liquid supply port is supplying liquid. That is, whether it is in a heated or not heated state depends mainly on whether there is liquid that needs to be heated to boiling.

[0013] In practice, to provide a better user experience, a flow regulator, such as a liquid storage container, can be installed at the outlet of the liquid handling system. The liquid with controlled flow is stored in this container, and then discharged to the user in a concentrated manner once a certain amount of liquid has been collected. In this way, regardless of the flow rate of the liquid heated to boiling, from the user's perspective, the liquid discharge rate is consistent and uniform, rather than the flow rate fluctuating. This ensures that the liquid collection rate is basically consistent for the user during variable flow heating.

[0014] Similarly, considering that subsequent liquid discharge control operations are involved at the liquid receiving end, this application controls the rate at which the liquid passes through the heating component. This rate is basically consistent with the liquid discharge rate of the heating component and preheating component, or the liquid supply rate of the liquid supply port, and is not exactly the same as the rate at which the liquid is directly output to the user.

[0015] Furthermore, the control method includes: during specific liquid dispensing, rationally controlling the flow rate of the liquid through the heating component based on the temperature range of the liquid after preheating by the preheating component. That is, the flow rate can be rationally adjusted according to the actual preheating state of the preheating component to avoid the system consistently dispensing liquid at a preset high flow rate, resulting in insufficient liquid temperature, or consistently dispensing liquid at a low flow rate, resulting in insufficient flow. Through the above adjustment, a high flow rate can be dispensed when the preheating effect is good, and the flow rate can be reduced in time when the preheating effect is poor to ensure the liquid temperature. In this way, on the one hand, the preset high flow rate of liquid dispensing can be maximized, and on the other hand, the temperature of the output liquid can meet the preset liquid temperature requirement. This achieves high flow rate liquid dispensing control of the product, thereby improving the user experience.

[0016] Furthermore, the control method also includes: when the preheated liquid temperature is less than a first set temperature but greater than or equal to a second set temperature, making the flow rate of the liquid through the heating component greater than a set flow rate but less than or equal to a first flow rate.

[0017] In this technical solution, a second set temperature can be set according to actual conditions; that is, the temperature at which the liquid can be preheated when the preheating component is sufficiently charged. Therefore, if the preheated liquid temperature is greater than or equal to the second set temperature but less than the first set temperature, it indicates that the preheating effect of the preheating component is good, but not optimal. Therefore, in this case, the flow rate can be set between the first flow rate and the set flow rate. This setting adds a transition value T1 between T3 and T4, thus providing at least one intermediate flow rate as a buffer during the process of the preheating temperature decreasing from T3 to T4. This avoids a sudden change in flow rate from the first flow rate to the set flow rate, resulting in a relatively smooth change in liquid flow rate.

[0018] Furthermore, the step of making the flow rate of the liquid through the heating component greater than the set flow rate and less than or equal to the first flow rate specifically includes: during the process of the liquid temperature decreasing from the first set temperature to the second set temperature after being preheated by the preheating component, the flow rate of the liquid through the heating component gradually decreases from the first flow rate to the set flow rate, that is, the flow rate of the liquid through the heating component is positively correlated with the liquid temperature after being preheated by the preheating component.

[0019] In this technical solution, when the preheated liquid temperature is less than a first set temperature but greater than or equal to a second set temperature, the flow rate of the liquid through the heating component decreases as the preheated liquid temperature decreases. Specifically, during the period when the preheated liquid temperature decreases from the first set temperature to the second set temperature, the flow rate of the liquid through the heating component gradually decreases from a first flow rate to a set flow rate. More specifically, based on the specific value of the preheated liquid temperature, the corresponding flow rate can gradually decrease from the first flow rate to the set flow rate as the temperature decreases. That is, when the preheated liquid temperature is between the first and second set temperatures, the flow rate can decrease as the temperature decreases. In other words, during this stage, the flow rate is dynamically changing, but it needs to remain between the first flow rate and the set flow rate. Simultaneously, this setting allows the flow rate to gradually change during the process of the preheating temperature decreasing from T3 to T4, thereby avoiding a sudden change in flow rate from the first flow rate to the set flow rate, resulting in a smoother change in liquid flow rate.

[0020] Furthermore, the control method also includes: when the preheated liquid temperature is less than or equal to the second set temperature and greater than or equal to the deceleration critical temperature, controlling the liquid to pass through the heating component at a set flow rate.

[0021] In this technical solution, the temperature of the preheated liquid is higher than the critical temperature for the rate of decrease, meaning that the heating component does not need to be fully heated to meet the set large flow rate of water. Therefore, at this stage, the water is maintained at the set flow rate to ensure that the product can meet the requirements of large flow rate water output.

[0022] Furthermore, the control method also includes: when the preheated liquid temperature is less than the critical temperature for slowing down but greater than the system ambient temperature, making the flow rate of the liquid through the heating component less than or equal to the set flow rate but greater than the second flow rate.

[0023] In this technical solution, when the preheated liquid temperature is between the critical temperature for decreasing flow rate and the system ambient temperature, it indicates that its preheating capacity is relatively weak and is already close to the ambient temperature. At this point, the preheating component still has a certain preheating effect, but this effect is insufficient to meet the set maximum flow rate. Therefore, the flow rate can be reduced to maintain it between the set flow rate and the second flow rate, i.e., between the set maximum flow rate and the normal flow rate. This relatively increases the liquid heating rate and the outlet water flow rate. Furthermore, in this stage, the flow rate of the liquid through the heating component is positively correlated with the preheated liquid temperature.

[0024] Furthermore, the control method also includes: when the preheated liquid temperature is less than or equal to the system ambient temperature, controlling the liquid to pass through the heating component at a second flow rate, the second flow rate being greater than or less than a set flow rate. The second flow rate is a conventional flow rate, which is similar to the flow rate of existing desktop water dispensers, approximately between 6.5 g / s and 7.0 g / s.

[0025] Furthermore, the control method also includes: when the preheated liquid temperature is greater than or equal to the second set temperature, the preheating component stores heat at full power.

[0026] In this technical solution, if the preheated liquid temperature is greater than or equal to the second set temperature, it indicates that the preheating effect of the preheating component is relatively good. At this time, the heating demand of the heating component is not large. Therefore, the preheating component can be controlled to store heat at full power, so as to ensure that the product can be discharged in large flow while extending the continuous discharge time of the system.

[0027] Furthermore, the control method also includes: when the preheated liquid temperature is less than the second set temperature but greater than or equal to the deceleration critical temperature, the heating component heats with a first power, the preheating component stores heat with a second power, the second power is less than or equal to the remaining power after subtracting the first power from the target power, and the first power is less than the full power of the heating component.

[0028] In this technical solution, when the preheated liquid temperature is at the second set temperature - the critical temperature for slowing down, although the preheating effect is not optimal, it is still sufficient to heat the pre-set large flow rate of liquid to the required temperature. Therefore, at this time, the liquid can be controlled to pass through the heating component at a set flow rate. However, in order to ensure the required outlet liquid temperature, the heating power of the heating component can be increased according to the actual situation. For example, it can be heated directly at full power. At this time, since the heating power requirement of the heating component is large and the remaining power is small, the power that the preheating component can utilize can be reasonably determined based on the power consumed by the heating component.

[0029] Furthermore, when the remaining power is greater than or equal to the power of the preheating component when it is storing heat at full power, the preheating component stores heat at the power of full power; when the remaining power is less than the power of the preheating component when it is storing heat at full power, the preheating component stores heat at the remaining power.

[0030] In this technical solution, when the preheating component stores heat based on the remaining power, its heat storage power should be less than or equal to the power when storing heat at full power. Therefore, when the remaining power is greater than the power when storing heat at full power, heat storage is also carried out at the power when storing heat at full power, which can avoid damage to the heat storage component due to excessive heat storage power.

[0031] Furthermore, if the liquid temperature after preheating by the preheating component is less than or equal to the critical temperature for slowing down, the heating component heats at full power, and the preheating component stops storing heat.

[0032] In this technical solution, since the flow rate is already in the deceleration operation phase, the heating component heats the flow rate with power, which enables the flow rate to reach the maximum of this phase, thereby maximizing the flow rate of this phase.

[0033] Furthermore, the flow rate is set to be greater than or equal to 9 g / s and less than or equal to 15 g / s. That is, the rated flow rate of the liquid passing through the heating component is 9 g / s-15 g / s. Further, the second flow rate is greater than or equal to 6.5 g / s and less than or equal to 10 g / s, and this flow rate is generally set with reference to the rated flow rate of existing liquid handling systems without preheating components.

[0034] In the above technical solution, the first set temperature is greater than or equal to 70℃. This first set temperature generally needs to be set relatively high, typically close to the temperature at which the preheating component can preheat water when its energy storage is saturated, or slightly higher. This is because only in this way can the preheating effect of the preheating component be ensured to be truly good, thus allowing for a further increase in flow rate beyond the originally set high flow rate. Conversely, if the temperature is set too low, increasing the flow rate when the preheating effect is already mediocre may result in the heating component failing to heat the water to boiling.

[0035] In the above technical solution, the second set temperature is greater than or equal to 58℃ and less than or equal to 69℃. The second set temperature is a transition temperature, i.e., the temperature at which the liquid flow rate needs to maintain the first flow rate. Therefore, this temperature should not be set too high, because if the temperature is too high, the time for maintaining the first flow rate will be too short, making it impossible to achieve a larger flow rate. At the same time, the temperature should not be too low either; otherwise, the time for maintaining the first flow rate will be too long, resulting in excessive energy consumption. This would lead to a short transition time for the liquid flow rate to switch from the first flow rate to the set flow rate, causing the flow rate to change too abruptly. In other words, the flow rate cannot smoothly transition from the first flow rate to the set flow rate, which can easily lead to unstable water output and thus reduce the user experience.

[0036] In the above technical solution, the critical temperature for slowing down is greater than or equal to 38℃ and less than or equal to 55℃. The critical temperature for slowing down needs to be designed in conjunction with the characteristics of the product itself. Considering the characteristics of the preheating component and the preset flow rate, setting the critical temperature for slowing down between 38℃ and 55℃ is more reasonable, thereby improving the compatibility of the internal components of the product.

[0037] In the above technical solution, the liquid temperature after preheating by the preheating component is equal to the rate-deceleration critical temperature. When the heating component operates at full power and the liquid flows through it at a set flow rate, the outlet temperature of the heating component is equal to the preset target outlet temperature. That is, the rate-deceleration critical temperature is the minimum temperature required to heat water to boiling point at the set flow rate. Therefore, if the preheating component cannot preheat the water to this temperature, it cannot be heated to boiling point.

[0038] In any of the above technical solutions, the control method further includes: responding to a heating command to obtain the temperature of the preheating component; determining the initial liquid volume passing through the heating component based on the temperature of the preheating component; or responding to a heating command to control the liquid to pass through the heating component at a set flow rate.

[0039] In this technical solution, two options can be chosen when determining the initial liquid volume. The first option is to first obtain the temperature of the preheating component after receiving the heating command, thereby determining the state of the preheating component, that is, determining the preheating efficiency of the preheating component. Then, the initial flow rate is determined based on the actual preheating efficiency of the preheating component. In other words, the state of the preheating component is related to the initial flow rate. This makes the initial liquid volume more reasonable, avoiding the situation where the initial liquid volume is too large and the liquid cannot be boiled, or the initial liquid volume is too small and cannot meet the large flow rate requirement.

[0040] In another approach, upon receiving a heating command, the liquid is directly heated through the heating component at a set flow rate, meaning the initial liquid volume is the set flow rate, or a preset high flow rate. After heating begins, the preheated liquid temperature is detected by the preheating component, and the actual flow rate is controlled based on the detected temperature range. This approach, however, does not consider the actual state of the preheating component when determining the initial liquid volume, making the initial volume determination relatively convenient and the control logic simpler, thus making the product's control method easier to implement.

[0041] Furthermore, the step of determining the initial liquid volume passing through the heating component based on the temperature of the preheating component includes: when the temperature of the preheating component is greater than or equal to a first temperature value, controlling the liquid to pass through the heating component at a third flow rate, the third flow rate being greater than a set flow rate; when the temperature of the preheating component is less than the first temperature value but greater than or equal to the system ambient temperature, controlling the liquid to pass through the heating component at a fourth flow rate, the heating component heating at full power, the preheating component stopping heat storage, the fourth flow rate being greater than or equal to the second flow rate but less than the set flow rate.

[0042] In this technical solution, the initial liquid volume passing through the heating component is determined by comparing the temperature of the preheating component with a first temperature value. When the temperature of the preheating component is high, a third flow rate (generally a set flow rate or greater than the set flow rate, such as the first flow rate) is used as the initial liquid volume for discharge, thus ensuring a relatively large initial flow rate. When the temperature of the preheating component is low but still higher than the ambient temperature, a fourth flow rate is used as the initial liquid volume for discharge. The fourth flow rate is basically equal to the conventional flow rate without a preheating component, generally around 6.5 g / s, which ensures that the liquid is heated to the target discharge temperature, such as boiling. Of course, the fourth flow rate can also be set slightly higher, for example, greater than the second flow rate but less than the set flow rate, such as between 7.5-8.5 g / s.

[0043] Furthermore, when the temperature of the preheating component is lower than the system ambient temperature, the liquid is controlled to flow through the heating component at a second flow rate. The heating component then heats the liquid at full power, and the preheating component stops storing heat. At this time, the second flow rate is a normal flow rate, typically around 6.5 g / s, which ensures that the liquid can be heated to the target outlet temperature, such as boiling.

[0044] The first temperature value is defined as follows: First temperature = Deceleration critical temperature + Heat transfer threshold temperature ΔT. The heat transfer threshold temperature ΔT is the difference between the system ambient temperature before liquid discharge and the system ambient temperature when the liquid passes through the heating element at a set flow rate, or ΔT is greater than or equal to 2℃ and less than or equal to 6℃. In other words, the first temperature value is set based on the deceleration critical temperature, because at this temperature, a preset high flow rate of liquid can be ensured. The heat transfer threshold temperature is a compensation value set according to actual needs. For example, it can be set as system temperature difference compensation, in which case the heat transfer threshold temperature ΔT is the remainder between the system ambient temperature before liquid discharge and the system ambient temperature when the liquid passes through the heating element at a set flow rate. Alternatively, the heat transfer threshold temperature can be set according to actual needs, such as 2℃-6℃, meaning the heat transfer threshold temperature ΔT is greater than or equal to 2℃ and less than or equal to 6℃.

[0045] In another approach, the first temperature value is the temperature at which the preheating component completes energy storage, i.e., the temperature of the phase change material after the preheating component has completed heat storage, or a first temperature value greater than or equal to 80℃ and less than or equal to 100℃. The first temperature value can be reasonably set based on the actual situation of the preheating component.

[0046] In any of the above technical solutions, the control method further includes: controlling the preheating component to store heat when the liquid handling system is in a non-heating state. Alternatively, if the liquid handling system includes a non-heating state, the control method further includes: in the non-heating state, controlling the preheating component to store heat with a first heat storage power, and after the heat storage is completed, maintaining the temperature with a second heat storage power, wherein the first heat storage power is greater than the second heat storage power.

[0047] In these technical solutions, the liquid handling system includes a non-heating state, i.e., an idle state when the user is not dispensing liquid. In this state, the preheating component heats at full power (first heat storage power) using its set maximum power to quickly accumulate heat. After accumulating enough heat, it can reduce its power to a second heat storage power for heat preservation. This ensures that the preheating component can remain in a state of full heat storage for a long time, thereby ensuring that when the user needs liquids such as water, the preheating component can promptly preheat the liquid to the required temperature.

[0048] In any of the above technical solutions, the control method further includes: in response to a preset time during startup, putting the liquid handling system into a state where heating is prohibited, and causing the preheating component to perform full-power heat storage.

[0049] In these technical solutions, when the liquid handling system is first started, the preheating components do not have enough time to store heat. Therefore, for a short period after startup, it is generally unable to meet the requirements for large-flow liquid discharge. Thus, a startup protection period is set, during which the liquid handling system is in a state of no-discharge (no-heating) to allow the preheating components time to store heat. This preset time is reasonably set based on the time required for the preheating components to reach saturation. During this stage, the preheating components can operate at full power for rapid heat storage to quickly reach saturation.

[0050] In any of the above technical solutions, the control method further includes: when a heating command is received, detecting the time interval since the last liquid discharge; when the time interval is greater than or equal to a preset interval, controlling normal liquid discharge; when the time interval is less than the preset interval, prohibiting liquid discharge, or reducing the liquid discharge rate and making the liquid temperature output by the heating component greater than the preset target temperature.

[0051] In these technical solutions, when a heating command is received, if the interval since the last liquid dispensing is detected to be short, no comparison of preset temperature parameters is performed. Instead, the liquid dispensing is directly limited or the dispensing rate is reduced, ensuring that the liquid temperature output by the heating component is higher than the preset target temperature. This simplifies the entire control process, as the preheating component has not had time to recover its heat storage when the dispensing interval is short, generally failing to meet the set high-flow-rate dispensing requirement. Therefore, to improve control efficiency, temperature-related judgments are not performed; the dispensing is directly limited or the dispensing rate is reduced to ensure that the output liquid meets the target dispensing requirement. Here, the preset interval is greater than or equal to the time required for the preheating component to reach saturation from its lowest heat storage state, which refers to a state with virtually no preheating capacity.

[0052] In any of the above technical solutions, the control method further includes: when a heating command is received, determining whether the preheating component is at the heat preservation power or whether the preheating component is in the heat storage saturation state; when the preheating component is at the heat preservation power or in the heat storage saturation state, controlling normal liquid discharge; when the preheating component is not at the heat preservation power or not in the heat storage saturation state, prohibiting liquid discharge or reducing the liquid discharge rate and making the liquid temperature output by the heating component greater than the preset target temperature.

[0053] In this technical solution, when a liquid dispensing command is detected, the system first determines whether the preheating component has completed heat storage. For example, if it is in a heat preservation state, heat storage is complete. Alternatively, the temperature of the preheating component can be directly detected to determine if it has reached saturation. If so, it indicates that the preheating component has sufficient heat storage to meet the preset high-flow-rate liquid dispensing requirement. In this case, the normal procedure can be followed, first obtaining the preset temperature parameter and then adjusting the dispensing rate. Conversely, if the preheating component is not saturated, i.e., insufficient heat storage is detected, then when preparing to dispense liquid, the preset temperature parameter is not compared. Instead, the dispensing rate is directly limited or reduced, and the liquid temperature output by the heating component is made higher than the preset target temperature. This simplifies the entire control process, as insufficient heat storage in the preheating component generally cannot meet the set high-flow-rate liquid dispensing requirement. Therefore, to improve control efficiency, temperature-related judgments are not performed. For example, during long-term dispensing or when the interval between consecutive dispensing is short, temperature detection can be omitted, and the dispensing rate can be directly limited or reduced to ensure that the output liquid meets the target dispensing requirement.

[0054] In any of the above technical solutions, the control method further includes: controlling the liquid supply volume at the liquid supply port to control the liquid discharge rate of the liquid processing system.

[0055] In these technical solutions, the liquid handling system also includes a flow control device. The flow control device is located between the liquid supply port and the preheating component. A controller is connected to the flow control device and is used to adjust the liquid output rate by regulating the operation of the flow control device. When the liquid temperature in the liquid container and the temperature of the preheating component can be monitored by a second temperature detection device to reasonably control the liquid output flow rate of the heating component, the liquid supply can be adjusted by controlling the flow rate of the flow control device, thereby regulating the amount of liquid entering the heating component, thus reasonably controlling the liquid output flow rate.

[0056] In any of the above technical solutions, the liquid handling system further includes a liquid collection box for collecting the liquid output from the heating component and a liquid discharge component for discharging the liquid collection box. The control method further includes: in response to a heating command, controlling the liquid discharge component to discharge liquid at a first liquid discharge rate, the first liquid discharge rate being equal to a set flow rate ±6°C; and after the liquid volume in the liquid collection box is less than a preset flow rate, controlling the liquid discharge component to discharge liquid at a second liquid discharge rate, the second liquid discharge rate being less than the first liquid discharge rate, the second liquid discharge rate being equal to a set flow rate ±6°C.

[0057] In these technical solutions, the liquid handling system also includes a collection box. A constant flow outlet valve is installed at the collection box to adjust the liquid flow rate and stabilize it at a preset speed. By using a collection box, water can be collected and discharged centrally, thus avoiding fluctuations in the liquid flow rate. That is, under normal circumstances, the heated liquid is collected in the collection box and discharged at a first discharge flow rate. The first discharge flow rate is generally the set flow rate, or fluctuates around 6°C above or below the set flow rate. Simultaneously, during the discharge process, the remaining liquid volume in the collection box can be monitored. If the volume is less than the set value, the discharge rate can be reduced to a second discharge flow rate to ensure continuous discharge. For example, if the system maintains a heating operation at the current conventional flow rate (i.e., the second flow rate) for an extended period, the liquid level in the collection box will gradually decrease. Once it decreases to a certain value, the discharge flow rate can be reduced to ensure continuous discharge. The second discharge flow rate is generally the set flow rate, or fluctuates around 6°C above or below the set flow rate.

[0058] The second aspect of the present invention provides a control device for a liquid processing system. The liquid processing system includes a preheating component and a heating component. The preheating component is used to store heat and can use the stored heat to preheat the liquid passing through the preheating component. The heating component is used to reheat the liquid preheated by the preheating component. The control device includes: an acquisition unit for acquiring the temperature of the liquid after preheating by the preheating component during the liquid discharge process; and a control unit for controlling the liquid to pass through the heating component at a first flow rate greater than the set flow rate when the temperature of the preheated liquid is greater than or equal to a first set temperature.

[0059] Furthermore, the control device is also used in the steps of the control method for the liquid handling system provided by any of the technical solutions in the first aspect.

[0060] The fourth aspect of the present invention provides a readable storage medium storing a program or instructions thereon, wherein when the program or instructions are executed by a processor, the program or instructions implement the steps of the control method of the liquid handling system provided by any of the first aspects.

[0061] The fifth aspect of the present invention provides a liquid handling system, including a control device for the liquid handling system provided in any of the above-mentioned technical solutions; and / or including a readable storage medium provided in any of the above-mentioned technical solutions.

[0062] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0063] The above and / or additional aspects and advantages of embodiments of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0064] Figure 1 A schematic diagram of the liquid handling system provided in an embodiment of the present invention is shown;

[0065] Figure 2 A schematic diagram of the structure of the preheating component of the liquid handling system provided in an embodiment of the present invention is shown;

[0066] Figure 3 A schematic diagram of the structure of a liquid handling system provided in another embodiment of the present invention is shown;

[0067] Figure 4 A schematic flowchart of a control method for a liquid handling system provided in an embodiment of the present invention is shown;

[0068] Figure 5 A schematic flowchart of another control method for a liquid handling system provided in an embodiment of the present invention is shown;

[0069] Figure 6 A block diagram of a control device for a liquid handling system provided in an embodiment of the present invention is shown.

[0070] Figure 7 A block diagram of a control device for a liquid handling system according to another embodiment of the present invention is shown;

[0071] Figure 8 A flowchart illustrating a control method for a liquid handling system according to another embodiment of the present invention is shown;

[0072] Figure 9 A schematic diagram of the preheating temperature rise curve of the liquid handling system provided in an embodiment of the present invention is shown.

[0073] in, Figures 1 to 3 , Figure 6 and Figure 7 The correspondence between component names and their designations is as follows:

[0074] 1 Liquid container, 2 Preheating component, 22 Liquid pipeline, 24 Heat storage component, 242 Phase change material, 26 Heating component, 28 Insulation component, 3 Heating component, 4 Flow control device, 52 Liquid outlet component, 54 Liquid collection box, 6 Second temperature detection device, 7 First temperature detection device, 8 Controller, 9 Second branch, 900 Control device for liquid handling system, 902 Acquisition unit, 904 Control unit, 906 Processor, 908 Memory. Detailed Implementation

[0075] To better understand the above aspects, features, and advantages of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0076] Many specific details are set forth in the following description in order to provide a full understanding of the embodiments of the present invention. However, the embodiments of the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the embodiments of the present invention is not limited to the specific embodiments disclosed below.

[0077] The following reference Figures 1 to 9 This application describes the liquid handling system and its control method and control device provided.

[0078] Example 1

[0079] like Figure 1 As shown, the control method for a liquid handling system provided in the first aspect of the present invention is used for, as Figures 1 to 3 The liquid handling system shown includes a preheating component 2 and a heating component 3. The preheating component 2 stores heat and can use the stored heat to preheat the liquid passing through it. The heating component 3 is used to reheat the liquid preheated by the preheating component 2. Figure 4 As shown, the control method includes: acquiring the temperature of the liquid after preheating by the preheating component during the liquid discharge process; and controlling the flow rate of the liquid through the heating component based on the temperature range of the preheated liquid temperature. Further, the control method includes:

[0080] S402, during the liquid discharge process, obtains the temperature of the liquid after preheating by the preheating component;

[0081] S404, when the preheated liquid temperature is greater than or equal to the first set temperature T3, the liquid is controlled to pass through the heating component at a first flow rate, the first flow rate being greater than the set flow rate.

[0082] The liquid handling system provided by the present invention includes a preheating component and a heating component. Specifically, the liquid handling system can be a desktop water dispenser, or more specifically, a desktop direct-drinking water dispenser, that is, a water dispenser that directly outputs boiled liquid or boiled liquid adjusted to a suitable drinking temperature before outputting. Specifically, the preheating component is connected to the liquid supply port, etc., and its purpose is to accumulate heat when the user is not using water or other liquids, i.e., in a non-heating state. Then, when the user needs water or other liquids, the pre-stored energy is used to preheat the liquid supplied by the liquid supply port, etc., to a certain temperature. The preheated liquid then enters the heating component and is rapidly heated to boiling. The boiled liquid is discharged through the liquid outlet component, or the boiled liquid can also undergo heat exchange or be mixed with other liquids before being discharged. In this scheme, a first set temperature T3 can be set according to actual needs; exceeding this temperature increases the heating speed of the liquid through the heating component. Furthermore, at the first set temperature T3, the heating component can heat the water at the set flow rate to boiling without using full power. Generally, the heating power of the heating component is relatively small at this time, usually less than the difference between the target power value and the full power value of the preheating component. That is, at this time, the preheating component can basically store heat at full power. Therefore, it can be considered that when the preheated liquid is at the first set temperature T3, if the heating component heats it with the difference between the target power value and the full power value of the preheating component, it can heat the liquid at the set flow rate just to the target temperature (generally the boiling temperature). Therefore, when heating the liquid, if the preheated temperature is detected to exceed this first set temperature T3, it means that the heating component can heat the water to boiling with less power. Therefore, it also means that the system can heat a larger flow rate of water to boiling. Therefore, under the set flow rate, that is, the preset large flow rate of water output, the speed of the liquid flowing through the heating component can be increased, that is, the first flow rate greater than the set flow rate, so that a larger flow rate of heating and water output can be achieved. For example, when the preheating component has a particularly strong preheating capacity, or when the water source temperature is already high, the water flow rate can be increased to the first flow rate to improve the user experience. The preheating component generally has a strong preheating capacity when it is just saturated with heat, so the water flow rate can be appropriately increased at this stage to achieve a larger flow rate. Simultaneously, this system can store and accumulate heat in advance through the preheating component during idle periods. When the user uses water or other liquids, the preheating component uses this stored heat to preheat the liquid. During the preheating phase, the preheating component does not consume power to preheat the liquid. Therefore, the total heating power of the liquid handling system is equal to the power of the heating component. This allows for higher heating efficiency with lower power. For the same heating component power, more liquid can be heated to boiling simultaneously, thereby increasing the liquid dispensing rate of the liquid handling system and solving the problems of low dispensing rate and easy flow interruption in existing household desktop water dispensers.For example, for household tabletop water dispensers, the maximum heating power, according to electrical safety regulations, needs to be limited to 2300W or less, meaning the heating power of the heating element must be less than or equal to 2300W. At this power, due to losses in electrothermal efficiency and heat utilization, the liquid flow rate of liquid handling systems such as direct drinking water dispensers is typically less than 6.5g / s, resulting in a low liquid flow rate and a tendency for flow interruptions in existing tabletop water dispensers. In this application, by setting the heating power of the heating element to 2300W, the liquid is preheated by a preheating component, resulting in a significantly higher liquid flow rate than the existing 6.5g / s. This increases the product's liquid flow rate and solves the problem of low liquid flow rate and easy flow interruptions in existing tabletop water dispensers.

[0083] In this application, the first set temperature T3, the second set temperature T1, the deceleration critical temperature T4, and the system ambient temperature T2 can be set to a fixed value as needed. However, considering the fluctuations during temperature measurement, their values ​​are all within a range. Generally, the range of the first set temperature T3, the second set temperature T1, the deceleration critical temperature T4, and the system ambient temperature T2 is a reference value ± a fluctuation threshold, where the fluctuation threshold is greater than or equal to 2℃ and less than or equal to 6℃.

[0084] Furthermore, the control method includes: during specific liquid dispensing, rationally controlling the flow rate of the liquid through the heating component based on the temperature range of the liquid after preheating by the preheating component. That is, the flow rate can be rationally adjusted according to the actual preheating state of the preheating component to avoid the system consistently dispensing liquid at a preset high flow rate, resulting in insufficient liquid temperature, or consistently dispensing liquid at a low flow rate, resulting in insufficient flow. Through the above adjustment, a high flow rate can be dispensed when the preheating effect is good, and the flow rate can be reduced in time when the preheating effect is poor to ensure the liquid temperature. In this way, on the one hand, the preset high flow rate of liquid dispensing can be maximized, and on the other hand, the temperature of the output liquid can meet the preset liquid temperature requirement. This achieves high flow rate liquid dispensing control of the product, thereby improving the user experience.

[0085] Furthermore, the control method also includes: when the preheated liquid temperature is less than the first set temperature T3 and greater than or equal to the second set temperature T1, making the flow rate of the liquid through the heating component greater than the set flow rate and less than or equal to the first flow rate.

[0086] In this technical solution, a second set temperature T1 can be set according to actual conditions, which is the temperature at which the liquid can be preheated when the preheating component is sufficiently charged. Therefore, if the preheated liquid temperature is greater than or equal to the second set temperature T1 but less than the first set temperature T3, it indicates that the preheating effect of the preheating component is good, but not optimal. Therefore, in this case, the flow rate can be set between the first flow rate and the set flow rate. This setting adds a transition value T1 between T3 and T4, thus providing at least one intermediate flow rate as a buffer during the process of the preheating temperature decreasing from T3 to T4. This avoids a sudden change in flow rate from the first flow rate to the set flow rate, resulting in a relatively smooth change in liquid flow rate.

[0087] Furthermore, the step of making the flow rate of the liquid through the heating component greater than the set flow rate and less than or equal to the first flow rate specifically includes: during the process of the liquid temperature decreasing from the first set temperature T3 to the second set temperature T1 after being preheated by the preheating component, the flow rate of the liquid through the heating component gradually decreases from the first flow rate to the set flow rate.

[0088] In this embodiment, when the preheated liquid temperature is less than the first set temperature T3 but greater than or equal to the second set temperature T1, the flow rate of the liquid through the heating component decreases as the preheated liquid temperature decreases. Specifically, during the period when the preheated liquid temperature decreases from the first set temperature T3 to the second set temperature T1, the flow rate of the liquid through the heating component gradually decreases from the first flow rate to the set flow rate. More specifically, based on the specific value of the preheated liquid temperature, the corresponding flow rate can be gradually reduced from the first flow rate to the set flow rate as the temperature decreases. That is, when the preheated liquid temperature is between the first set temperature T3 and the second set temperature T1, the flow rate can decrease as the temperature decreases. In other words, during this stage, the flow rate is dynamically changing, but it needs to remain between the first flow rate and the set flow rate. Simultaneously, this setting allows the flow rate to gradually change during the process of the preheating temperature decreasing from T3 to T4, thereby avoiding a sudden change in flow rate from the first flow rate to the set flow rate, resulting in a smoother change in liquid flow rate.

[0089] Furthermore, the step of making the flow rate of the liquid through the heating component greater than the set flow rate and less than or equal to the first flow rate specifically includes: during the process of the liquid temperature after being preheated by the preheating component decreasing from the first set temperature T3 to the second set temperature T1, the flow rate of the liquid through the heating component gradually decreases from the first flow rate to the set flow rate, that is, the flow rate of the liquid through the heating component is positively correlated with the liquid temperature after being preheated by the preheating component.

[0090] In this embodiment, the preheated liquid temperature is higher than the critical temperature T4 for the rate of decrease, meaning that the heating component does not need to be fully heated to meet the set large flow rate of water output. Therefore, at this stage, the water output is maintained at the set flow rate to ensure that the product can meet the requirements of large flow rate of water output.

[0091] Furthermore, the control method also includes: when the preheated liquid temperature is less than the deceleration critical temperature T4 and greater than the system ambient temperature T2, the flow rate of the liquid through the heating component is less than or equal to the set flow rate and greater than the second flow rate.

[0092] In this embodiment, when the preheated liquid temperature is between the critical temperature T4 and the system ambient temperature T2, it indicates that its preheating capacity is relatively weak and is already close to the ambient temperature. However, at this point, the preheating component still has a certain preheating effect, but this effect is insufficient to meet the set maximum flow rate. Therefore, the flow rate can be reduced to maintain it between the set flow rate and the second flow rate, i.e., between the set maximum flow rate and the normal flow rate. This relatively increases the liquid heating rate and the outlet water flow rate.

[0093] Furthermore, the control method also includes: when the preheated liquid temperature is less than or equal to the system ambient temperature T2, controlling the liquid to pass through the heating component at a second flow rate, wherein the second flow rate is greater than or less than a set flow rate.

[0094] Example 2

[0095] In this embodiment, the control process of heating power is mainly defined when the preheated liquid temperature is in different temperature ranges. Specifically:

[0096] The control method also includes: when the preheated liquid temperature is greater than or equal to the second set temperature T1, the preheating component stores heat at full power.

[0097] In this embodiment, if the preheated liquid temperature is greater than or equal to the second set temperature T1, it indicates that the preheating effect of the preheating component is relatively good. At this time, the heating demand of the heating component is not large. Therefore, the preheating component can be controlled to store heat at full power so as to ensure that the product can be discharged in large flow while extending the continuous discharge time of the system.

[0098] Furthermore, the control method also includes: when the preheated liquid temperature is less than the second set temperature T1 and greater than or equal to the deceleration critical temperature T4, the heating component heats with a first power, the preheating component stores heat with a second power, the second power is less than or equal to the remaining power after subtracting the first power from the target power, and the first power is less than the full power of the heating component.

[0099] In this embodiment, when the preheated liquid temperature is between the second set temperature T1 and the critical temperature for decreasing rate T4, although the preheating effect is not optimal, it is still sufficient to heat the pre-set large flow rate of liquid to the required temperature. Therefore, at this time, the liquid can be controlled to pass through the heating component at a set flow rate. However, in order to ensure the required outlet liquid temperature, the heating power of the heating component can be increased according to the actual situation. For example, it can be heated directly at full power. At this time, since the heating power requirement of the heating component is large and the remaining power is small, the power that the preheating component can utilize can be reasonably determined based on the power consumed by the heating component.

[0100] Furthermore, when the remaining power is greater than or equal to the power of the preheating component when it is storing heat at full power, the preheating component stores heat at the power of full power; when the remaining power is less than the power of the preheating component when it is storing heat at full power, the preheating component stores heat at the remaining power.

[0101] In this embodiment, when the preheating component stores heat based on the remaining power, its heat storage power should be less than or equal to the power when storing heat at full power. Therefore, when the remaining power is greater than the power when storing heat at full power, heat storage is also performed at the power when storing heat at full power, which can prevent the heat storage component from being damaged due to excessive heat storage power.

[0102] Furthermore, if the liquid temperature after preheating by the preheating component is less than or equal to the critical temperature T4 for slowing down, the heating component heats at full power, and the preheating component stops storing heat.

[0103] In this embodiment, since the flow rate is already in the deceleration phase, the heating component heats the flow rate with power, which enables the flow rate to reach the maximum of this phase, thereby maximizing the flow rate of this phase.

[0104] Example 3

[0105] In this embodiment, the specific values ​​of the set flow rate, the second set temperature T1, etc. are mainly defined.

[0106] Specifically:

[0107] The set flow rate is greater than or equal to 9 g / s and less than or equal to 15 g / s. That is, the rated flow rate of the liquid passing through the heating component is 9 g / s-15 g / s. Further, the second flow rate is greater than or equal to 6.5 g / s and less than or equal to 10 g / s. This flow rate is generally set with reference to the rated flow rate of existing liquid handling systems without preheating components.

[0108] In the above embodiments, the first set temperature T3 is greater than or equal to 70°C. The first set temperature T3 generally needs to be set relatively high, typically close to the temperature at which the preheating component can preheat the water when its energy storage is saturated, or slightly higher. This is because only in this way can the preheating effect of the preheating component be ensured to be truly good, thus allowing for a further increase in flow rate under the originally set high flow rate. Conversely, if the temperature is set too low, it will lead to a situation where the preheating effect is only average, and increasing the flow rate further could result in the heating component failing to heat the water to boiling.

[0109] In the above embodiment, the second set temperature T1 is greater than or equal to 58°C and less than or equal to 69°C. The second set temperature T1 is a transition temperature, i.e., the temperature at which the liquid flow rate needs to maintain the first flow rate. Therefore, this temperature should not be set too high, because if the temperature is too high, the time for maintaining the first flow rate will be too short, making it impossible to achieve a larger flow rate. At the same time, the temperature should not be too low either; otherwise, the time spent maintaining the first flow rate will be too long, resulting in excessive energy consumption. This would lead to a short transition time for the liquid flow rate to switch from the first flow rate to the set flow rate, causing the flow rate to change too abruptly. In other words, the flow rate cannot smoothly transition from the first flow rate to the set flow rate, which can easily lead to unstable water output and thus reduce the user experience.

[0110] In the above embodiments, the critical temperature for slowing down, T4, is greater than or equal to 38°C and less than or equal to 55°C. The critical temperature for slowing down needs to be designed in conjunction with the characteristics of the product itself. Considering the characteristics of the preheating component and the preset flow rate, setting the critical temperature for slowing down, T4, between 38°C and 55°C is more reasonable, thereby improving the compatibility of the internal components of the product.

[0111] In the above embodiment, the liquid temperature after preheating by the preheating component is equal to the rate-deceleration critical temperature T4. When the heating component heats at full power and the liquid passes through the heating component at a set flow rate, the liquid outlet temperature of the heating component is equal to the preset target outlet temperature. That is, the rate-deceleration critical temperature T4 is the minimum temperature value required for preheating water to reach boiling point at the set flow rate. Therefore, if the preheating component cannot preheat the water to this temperature, the water cannot be heated to boiling point.

[0112] Example 4

[0113] The difference between this embodiment and the previous embodiment is that: Figure 5 As shown, the control method also includes:

[0114] S502, responding to a heating command, obtains the temperature of the preheating component and determines the initial liquid volume passing through the heating component based on the temperature of the preheating component, or responds to a heating command to set the flow rate through the heating component.

[0115] S504, during the liquid discharge process, obtains the temperature of the liquid after preheating by the preheating component;

[0116] S506 controls the flow rate of the liquid through the heating component based on the temperature range of the preheated liquid.

[0117] In this embodiment, two schemes can be selected when determining the initial liquid volume. The first scheme is: after receiving the heating command, first obtain the temperature of the preheating component to determine the state of the preheating component, that is, determine the preheating efficiency of the preheating component. Then, determine the initial flow rate based on the actual preheating efficiency of the preheating component. In other words, the state of the preheating component is related to the initial flow rate. This makes the initial liquid volume more reasonable and avoids the situation where the initial liquid volume is too large and the liquid cannot be boiled, or the initial liquid volume is too small and cannot meet the large flow rate requirement.

[0118] In another approach, upon receiving a heating command, the liquid is directly heated through the heating component at a set flow rate, meaning the initial liquid volume is the set flow rate, or a preset high flow rate. After heating begins, the preheated liquid temperature is detected by the preheating component, and the actual flow rate is controlled based on the detected temperature range. This approach, however, does not consider the actual state of the preheating component when determining the initial liquid volume, making the initial volume determination relatively convenient and the control logic simpler, thus making the product's control method easier to implement.

[0119] Furthermore, the step of determining the initial liquid volume passing through the heating component based on the temperature of the preheating component includes: when the temperature of the preheating component is greater than or equal to a first temperature value T0, controlling the liquid to pass through the heating component at a third flow rate, the third flow rate being greater than a set flow rate; when the temperature of the preheating component is less than the first temperature value T0, controlling the liquid to pass through the heating component at a fourth flow rate, the heating component heating at full power, the preheating component stopping heat storage, the fourth flow rate being greater than or equal to the second flow rate and less than the set flow rate.

[0120] In this embodiment, the initial liquid volume passing through the heating component can be determined by comparing the temperature of the preheating component with a first temperature value. When the temperature of the preheating component is high, a third flow rate (generally a set flow rate) is used as the initial liquid volume for discharge, thereby ensuring a relatively large initial flow rate. When the temperature of the preheating component is low, a fourth flow rate is used as the initial liquid volume for discharge. The fourth flow rate is basically equal to the conventional flow rate without a preheating component, generally around 6.5 g / s, which ensures that the liquid can be heated to the target discharge temperature, such as boiling.

[0121] Wherein, the first temperature value T0 = the critical temperature for decreasing flow rate T4 + the heat transfer threshold temperature ΔT, where the heat transfer threshold temperature ΔT is the difference between the system ambient temperature when no liquid is being discharged and the system ambient temperature when the liquid passes through the heating element at a set flow rate, or the heat transfer threshold temperature ΔT is greater than or equal to 2℃ and less than or equal to 6℃. That is, the first temperature value is set based on the critical temperature for decreasing flow rate T4, because at this temperature, a preset high flow rate of liquid can be ensured. The heat transfer threshold temperature is a compensation value set according to actual needs, such as being set as system temperature difference compensation. In this case, the heat transfer threshold temperature ΔT is the remainder between the system ambient temperature when no liquid is being discharged and the system ambient temperature when the liquid passes through the heating element at a set flow rate. Alternatively, the heat transfer threshold temperature can be set according to actual needs, such as 2℃-6℃, meaning the heat transfer threshold temperature ΔT is greater than or equal to 2℃ and less than or equal to 6℃.

[0122] In another scheme, the first temperature value T0 is the temperature when the preheating component completes energy storage, that is, the temperature of the phase change material after the preheating component completes heat storage, or the first temperature value T0 is greater than or equal to 60℃ and less than or equal to 100℃.

[0123] Example 5

[0124] In this embodiment, the following differences also apply:

[0125] The control method further includes: controlling the preheating component to store heat when the liquid handling system is in a non-heating state. Alternatively, if the liquid handling system includes a non-heating state, the control method further includes: in the non-heating state, controlling the preheating component to store heat at a first heat storage power, and after heat storage is completed, maintaining the temperature at a second heat storage power, wherein the first heat storage power is greater than the second heat storage power.

[0126] In these embodiments, the liquid handling system includes a non-heating state, i.e., an idle state when the user is not dispensing liquid. In this state, the preheating component heats at full power (first heat storage power) using its set maximum power to quickly accumulate heat. After accumulating enough heat, it can reduce its power to a second heat storage power for heat preservation. This ensures that the preheating component can remain in a state of full heat storage for an extended period, thereby ensuring that when the user needs liquids such as water, the preheating component can promptly preheat the liquid to the required temperature.

[0127] Furthermore, the control method also includes: in response to a preset time during startup, putting the liquid handling system into a non-heating state and enabling the preheating components to store heat at full power.

[0128] In these embodiments, when the liquid handling system is first turned on, the preheating components do not have enough time to store heat, so the system cannot meet the requirements for large-flow liquid discharge for a short period after startup. Therefore, a startup protection period is set, in which the liquid handling system is in a state of no-discharge (no-heating) for a short period after startup to allow the preheating components time to store heat. This preset time is reasonably set according to the time required for the preheating components to store heat to saturation. During this stage, the preheating components can be made to store heat at full power for rapid heat storage to quickly reach saturation.

[0129] Furthermore, the control method also includes: when a heating command is received, detecting the time interval since the last liquid dispensing; when the time interval is greater than or equal to a preset interval, controlling normal liquid dispensing; when the time interval is less than the preset interval, prohibiting liquid dispensing, or reducing the liquid dispensing rate and making the liquid temperature output by the heating component greater than the preset target temperature.

[0130] In these embodiments, when a heating command is received, if the interval since the last liquid dispensing is detected to be short, no comparison of preset temperature parameters is performed. Instead, the liquid dispensing is directly limited or the dispensing rate is reduced, ensuring that the liquid temperature output by the heating component is higher than the preset target temperature. This simplifies the overall control process of the product. After all, when the dispensing interval is short, the preheating component has not had time to recover its heat storage, generally failing to meet the set high-flow-rate dispensing requirement. Therefore, to improve control efficiency, temperature-related judgments are not performed; the dispensing is directly limited or the dispensing rate is reduced to ensure that the output liquid meets the target dispensing requirement. Here, the preset interval is greater than or equal to the time required for the preheating component to reach saturation from its lowest heat storage state. The lowest heat storage state refers to a state with virtually no preheating capacity.

[0131] Furthermore, the control method also includes: when a heating command is received, determining whether the preheating component is at the heat preservation power or whether the preheating component is in the heat storage saturation state; when the preheating component is at the heat preservation power or in the heat storage saturation state, controlling normal liquid discharge; when the preheating component is not at the heat preservation power or in the heat storage saturation state, prohibiting liquid discharge or reducing the liquid discharge rate and making the liquid temperature output by the heating component greater than the preset target temperature.

[0132] In this embodiment, when a liquid dispensing command is detected, it is first determined whether the preheating component has completed heat storage. For example, if it is in a heat preservation state, heat storage is complete. Alternatively, the temperature of the preheating component can be directly detected to determine whether it has reached saturation. If so, it indicates that the preheating component has stored sufficient heat to meet the preset large flow rate liquid dispensing requirement. In this case, the normal procedure can be followed, first obtaining the preset temperature parameter and then adjusting the rate. Conversely, if the preheating component is not saturated, i.e., insufficient heat storage is detected, then when preparing to dispense liquid, the preset temperature parameter is not compared. Instead, the liquid dispensing rate is directly limited or reduced, and the liquid temperature output by the heating component is made higher than the preset target temperature. This simplifies the entire control process of the product. After all, when the preheating component does not store enough heat, the set large flow rate liquid dispensing requirement generally cannot be met. Therefore, to improve control efficiency, temperature-related judgments are not performed. For example, during long-term liquid dispensing or when the interval between consecutive liquid dispensing is short, temperature detection can be omitted, and the liquid dispensing rate can be directly limited or reduced to ensure that the output liquid meets the target liquid dispensing requirement.

[0133] In any of the above embodiments, the control method further includes: controlling the liquid supply volume at the liquid supply port to control the liquid discharge rate of the liquid processing system.

[0134] In these embodiments, the liquid handling system further includes a flow control device. The flow control device is disposed between the liquid supply port and the preheating component. A controller is connected to the flow control device and is used to adjust the liquid outflow rate by regulating the operation of the flow control device. When the liquid temperature in the liquid container and the temperature of the preheating component can be monitored by a second temperature detection device to reasonably control the outflow rate of the heating component, the liquid supply can be adjusted by controlling the flow rate of the flow control device, thereby regulating the amount of liquid entering the heating component, thus reasonably controlling the outflow rate.

[0135] In any of the above embodiments, such as Figure 1 and Figure 3 As shown, the liquid handling system also includes a liquid collection box 54 for collecting the liquid output from the heating component and a liquid discharge component 52 for discharging the liquid collection box 54. The control method further includes: in response to a heating command, controlling the liquid discharge component to discharge liquid at a first liquid discharge rate; and after the liquid volume in the liquid collection box is less than a preset flow rate, controlling the liquid discharge component to discharge liquid at a second liquid discharge rate, wherein the second liquid discharge rate is less than the first liquid discharge rate.

[0136] In these embodiments, the liquid handling system also includes a collection box. A constant-flow outlet valve is installed at the collection box to adjust the liquid flow rate and stabilize it at a preset flow rate. By using a collection box, water can be collected and discharged in a centralized manner, thus avoiding the problem of fluctuating liquid flow rates. That is, under normal circumstances, the heated liquid is collected by the collection box and discharged at a pre-set high flow rate (first outlet flow rate), which is essentially equal to the set flow rate. Simultaneously, during the discharge process, the remaining liquid volume in the collection box can be monitored. If the volume is less than a set value, the discharge rate can be reduced to a second outlet flow rate (generally equal to the normal flow rate, i.e., the second flow rate of the liquid after passing through the heating component) to ensure continuous discharge. For example, if the system maintains a heating state at the second outlet flow rate for an extended period, the liquid level in the collection box will gradually decrease. Once it decreases to a certain value, the outlet flow rate can be reduced to ensure continuous discharge.

[0137] like Figure 6 As shown, an embodiment of the second aspect of the present invention provides a control device 900 for a liquid handling system, used for... Figures 1 to 3 The liquid handling system shown includes a preheating component 2 and a heating component 3. The preheating component 2 is used to store heat and can use the stored heat to preheat the liquid passing through the preheating component 2. The heating component 3 is used to reheat the liquid preheated by the preheating component 2. The control device includes: an acquisition unit 902, used to acquire the temperature of the liquid after preheating by the preheating component 2 during the liquid discharge process; and a control unit 904, used to control the liquid to pass through the heating component 3 at a speed greater than a set flow rate when the temperature of the preheated liquid is greater than or equal to a first set temperature T3.

[0138] Furthermore, the control device is also used in the steps of the control method for the liquid handling system provided in any embodiment of the first aspect.

[0139] The control device 900 for a liquid handling system provided by the present invention is a device corresponding to the control method for a liquid handling system provided in any embodiment of the first aspect. Therefore, the control device also has the effect corresponding to the control method for a liquid handling system provided in any embodiment of the second aspect, which will not be described again here.

[0140] like Figure 7 As shown, an embodiment of the third aspect of the present invention provides a control device 900 for a liquid handling system, including a memory 908 and a processor 906. The memory 908 stores programs or instructions that can be executed on the processor 906. When the programs or instructions are executed by the processor 906, they implement the steps of the control method for the liquid handling system provided in any embodiment of the first aspect.

[0141] An embodiment of the fourth aspect of the present invention provides a readable storage medium having a program or instructions stored thereon, which, when executed by a processor 906, implement the steps of the control method for the liquid handling system provided in any embodiment of the first aspect.

[0142] A fifth aspect of the present invention provides a liquid handling system, including a control device 900 for a liquid handling system provided in any of the foregoing embodiments, or a readable storage medium provided in any of the foregoing embodiments. Since the liquid handling system includes the control device 900 or the readable storage medium, it possesses all the beneficial effects of the control device 900 or the readable storage medium, which will not be elaborated further here.

[0143] Furthermore, such as Figure 1 and Figure 3 As shown, the liquid handling system includes: a liquid supply port, which is connected to the preheating component 2 and is used to supply liquid to the entire system.

[0144] like Figure 1 and Figure 3 As shown, the liquid handling system also includes a controller 8, which controls the liquid discharge rate based on the detected temperatures of the preheating component 2 and the liquid container 1; that is, the controller 8 is a temperature-flow control structure. Of course, the controller 8 can also be used to control the power of the preheating component 2 and the heating component 3, etc.

[0145] In any of the above embodiments, such as Figure 1 and Figure 2 As shown, the liquid handling system further includes: a first temperature detection device 7 for detecting the temperature of the preheating component 2; a second temperature detection device 6 for detecting the liquid temperature at the liquid supply port; a third temperature detection device for detecting the liquid temperature after preheating by the preheating component 2; and a fourth temperature detection device for detecting the system ambient temperature. Generally, the fourth temperature detection device is installed in the pipeline between the preheating component 2 and the heating component 3 to detect the pipe temperature when no liquid is being dispensed or when preparing to dispense liquid, as a reference for the system ambient temperature.

[0146] In any of the above embodiments, the liquid handling system further includes: a duration detection device for detecting the liquid discharge duration of the heating component 3 or the interval between the last liquid discharge of the heating component 3 and the last liquid discharge.

[0147] In this embodiment, the duration of each liquid dispensing cycle or the interval between two adjacent dispensing cycles can be detected using a duration detection device. This duration detection determines the single dispensing time, which affects the preheating capacity of the preheating component 2. Generally, as the dispensing time increases, its preheating capacity gradually decreases, and excessively short intervals also lead to a decrease in preheating capacity. Therefore, by monitoring the dispensing duration or the dispensing interval, the preheating capacity of the preheating component 2 can be predicted, thereby determining whether the current conditions can meet the set high-flow-rate dispensing. If not, the dispensing rate can be reduced. This design takes into account the impact of dispensing duration on the preheating of the preheating component 2, eliminating the possibility of insufficient dispensing temperature due to a decrease in the preheating capacity of the preheating component 2 caused by prolonged dispensing. This ensures that the liquid is heated to the required temperature while maintaining a high flow rate.

[0148] In any of the above embodiments, such as Figure 1 and Figure 3 As shown, the liquid handling system also includes: a flow control device 4, which is disposed between the liquid supply port and the preheating component 2; and a controller for adjusting the liquid discharge rate by regulating the operation of the flow control device 4.

[0149] In these embodiments, the liquid handling system further includes a flow control device 4. The flow control device 4 is disposed between the liquid supply port and the preheating component 2. A controller is connected to the flow control device 4 and is used to adjust the liquid outflow rate by regulating the operation of the flow control device 4. When the liquid temperature of the liquid container 1 and the temperature of the preheating component 2 can be monitored by the second temperature detection device 6 to reasonably control the liquid outflow rate of the heating component 3, the amount of liquid entering the heating component 3 can be adjusted by controlling the flow rate of the flow control device 4, thereby reasonably controlling the liquid outflow rate.

[0150] Furthermore, the flow control device 4 can be a liquid pump. In addition to controlling the flow rate, the liquid pump can also increase the liquid supply pressure to avoid insufficient liquid supply due to insufficient hydraulic pressure.

[0151] In another embodiment, the flow control device 4 includes a flow regulating valve. That is, instead of a liquid pump, a flow regulating valve or the like can be used to regulate the amount of liquid passing through, thereby achieving control of the outflow rate.

[0152] In any of the above embodiments, such as Figure 2As shown, the preheating assembly 2 includes a heat exchange component. The heat exchange component includes a liquid pipeline 22. The liquid pipeline 22 is located between the liquid supply port and the heating assembly 3, connecting the two components. The liquid pipeline 22 is used to preheat the liquid supplied from the liquid supply port before supplying it to the heating assembly 3. Simultaneously, the preheating assembly 2 also includes a heat storage component 24, which has a certain heat storage capacity to store heat for later use. When liquid needs to be dispensed, the heat storage component 24 exchanges heat with the liquid in the liquid pipeline 22; that is, when liquid needs to be dispensed, the heat stored in the heat storage component 24 is transferred to the liquid in the liquid pipeline 22 to preheat the liquid. The preheating assembly 2 also includes a heating component 26. Heating component 26 is used to heat heat storage component 24 so that heat storage component 24 can continuously store heat. Heating component 26 can heat when no liquid is being discharged so that heat storage component 24 can store heat, or it can heat with a smaller power based on power distribution when heating so as to extend the preheating time of preheating component 2. This can increase the continuous liquid discharge time of the product so that the product can continuously supply boiling liquid for a longer time and at a larger flow rate.

[0153] In any of the above embodiments, such as Figure 2 As shown, the preheating component 2 includes an insulation component 28. The insulation component 28 surrounds the heat exchange component and is used to insulate the heat exchange component. By incorporating the insulation component 28, the insulation efficiency of the heat exchange component can be improved, preventing heat loss and thus reducing the power required to maintain its temperature, thereby lowering the product's energy consumption. Furthermore, due to the better insulation effect of the heat exchange component, it can be used for a longer period with the same heat storage capacity, thus increasing the continuous liquid dispensing time of the product.

[0154] In any of the above embodiments, the heating element 26 can be configured in different forms as needed, such as one or more combinations of a thick film, resistance wire, or ceramic heating element. Preferably, the heating element 26 is a resistance wire, as resistance wire is relatively common and thus reduces product cost. Furthermore, the heating element 26 is disposed inside the heat exchange component, meaning that the heating element 26 heats directly inside the heat exchange component. This avoids heat loss from the heating element 26 and improves its heating efficiency.

[0155] The preheating component 2 is a modular structure. It can be detachably installed between the liquid supply port and the heating component 3. In other words, the preheating component 2 is an optional component and can be configured as needed. It can be removed when preheating is not required, or it can be shipped without being assembled at the factory.

[0156] In any of the above embodiments, a heat storage medium, such as a phase change material, is disposed within the heat storage component 24. The heating component 26 is specifically used to heat the heat storage medium so that the heat storage medium stores heat.

[0157] In any of the above embodiments, the type of heat storage medium can be set as needed, such as one or more of thermal oil, water, or phase change materials. Generally, phase change materials are chosen as the heat storage medium because they have better heat storage capacity and are easier to install and store. Of course, thermal oil and water can also be used as the heat storage medium. Alternatively, the heat storage medium can be a combination of multiple media, such as a combination of different phase change materials, or a combination of phase change materials with thermal oil or water.

[0158] In any of the above embodiments, such as Figure 2 As shown, the heat storage component 24 includes a phase change material 242 for heat storage, a liquid pipeline 22 is disposed inside the phase change material 242, a heating component 26 is located on one side of the phase change material 242 to heat the phase change material 242, and a first temperature detection device 7 is disposed on the other side of the phase change material 242 to detect the temperature of the phase change material 242. The temperature of the phase change material detected by the first temperature detection device 7 is the temperature of the preheating component 2. The heat storage capacity of the preheating component 2 can be determined by this temperature, and the flow rate of the product can be controlled in combination with this temperature.

[0159] In any of the above embodiments, the liquid discharge rate of the liquid treatment system is greater than or equal to 7.3 g / s, or the liquid discharge rate of the liquid treatment system is greater than or equal to 9 g / s and less than or equal to 13 g / s.

[0160] In this embodiment, the preheating component 2 ensures a liquid dispensing rate greater than or equal to 7.3 g / s, meaning that the minimum dispensing rate in this application is always greater than or equal to 7.3 g / s. In contrast, related technologies cannot achieve a dispensing rate of 7.3 g / s for instant heating products, resulting in a slow dispensing rate and significantly reducing the user experience. In this application, the dispensing rate is higher than that of similar products in related technologies, thereby improving the product's dispensing speed, enhancing the user experience, and ensuring a high-flow-rate dispensing process.

[0161] In any of the above embodiments, the preheating component 2 will store heat in advance when not in a heating state, and then maintain the temperature after reaching saturation. Of course, if the interval between two liquid discharges of the product is short, the preheating component 2 may not have reached saturation before preheating is required. In general, the preheating component 2 will directly store heat when not in a heating state, and then maintain the temperature after saturation to prepare for subsequent preheating. In order to ensure heat storage efficiency, the preheating component 2 stores heat at full power when not in a heating state, that is, at the maximum power that the preheating component 2 can allow. At the same time, when in a heating state, if the heating component 3 heats at a non-full power, that is, if there is still a surplus according to the target power value P set by the safety regulations, the preheating component 2 can be controlled to store heat at the remaining power. That is, at this time, both the heating component 3 and the preheating component 2 are in a power consumption state, and the combined power consumption of the two is less than or equal to the value required by the safety regulations, such as the target power value P. In this configuration, since the preheating component 2 is also in a heating state during normal heating, the preheating component 2 can preheat the liquid while storing heat itself. This extends the preheating capacity of the preheating component 2, enabling it to continuously output liquid at the target temperature for a longer period of time, thereby achieving a large flow rate and long-term liquid output.

[0162] In any of the above embodiments, the liquid handling system further includes a liquid dispensing component 52. The liquid dispensing component 52 is connected to the heating component 3 and is used to dispense the liquid heated by the heating component 3. The liquid dispensing component 52 is the product's dispensing nozzle, through which the user can collect the liquid. Furthermore, the liquid dispensing component 52 and the heating component 3 can be directly connected or indirectly connected; that is, the liquid heated by the heating component 3 can be directly discharged through the liquid dispensing component 52, or it can be processed by a heat exchanger or other device before being discharged through the liquid dispensing component 52.

[0163] In any of the above embodiments, such as Figure 1 and Figure 3 As shown, the liquid handling system includes a liquid container 1. By using the liquid container 1, liquid can be stored in advance, eliminating the need for external water pipes and other structures, thus allowing for more flexible product placement and better meeting the requirements of desktop water dispensers, etc. Alternatively, the product can omit the liquid container 1 (e.g., a water tank). In this case, the liquid handling system includes a connecting pipe that can connect to an external liquid source to deliver the liquid from the external source to the preheating component 2.

[0164] Furthermore, the heating element 3 can be either an instantaneous heating element or a non-instantaneous heating element. An instantaneous heating element can quickly heat the liquid to boiling, achieving an instant hot and drinkable effect. A non-instantaneous heating element requires waiting for the liquid to boil before dispensing it; while it cannot achieve instant hot and drinkable results, it still ensures the dispensed liquid is at a suitable drinking temperature. In specific settings, the heating element 3 can be configured as either instantaneous or non-instantaneous, depending on the requirements. The instantaneous heating element 3 can be a thick-film heating element or a PTC element.

[0165] Furthermore, the liquid handling system is an instant heating container. Even further, the liquid handling system also includes a heat exchange device disposed between the liquid outlet assembly 52 and the heating assembly 3, used to cool the liquid heated to boiling by the heating assembly 3 to a temperature suitable for direct drinking, for the user to consume.

[0166] Furthermore, such as Figure 3 As shown, the liquid handling system includes a first branch and a second branch 9. The liquid supply port is connected to the heating component 3 via the first branch, which includes a preheating component 2. That is, the first branch is a preheating branch. The liquid supply port (located on the liquid container 1) is directly connected to the heating component 3 via the second branch 9, meaning the second branch 9 is a direct boiling branch. In this design, the system includes two branches, allowing the product to be preheated before output, thus achieving flow-controlled liquid discharge. Simultaneously, the product can also be discharged via the second branch 9 as a conventional product.

[0167] The control method provided in this application will now be described with reference to a more specific embodiment.

[0168] Specifically, this embodiment provides a working control method for a high-flow-rate instant hot water dispensing system. Several parameters are pre-set in the system, including: preheating component equilibrium temperature T0 (T0 is the preheating component's charging protection temperature; charging ends upon reaching T0), rated charging power W1, high-flow-rate Vset, conventional instant hot water machine flow rate V2, second set temperature T1, system ambient temperature T2, deceleration critical temperature T4, and first set temperature T3. After the high-flow-rate instant hot water dispensing system dispenses liquid, i.e., during the dispensing process, such as... Figure 8 and Figure 9 As shown, it takes the following steps to control the flow rate:

[0169] S802, obtain the liquid temperature T after preheating by the preheating component. When T≥T3, go to S804. When T3>T≥T1, go to S806. When T1>T≥T4, go to S808. When T4>T>T2, go to S810. When T=T2, go to S812.

[0170] S804, the liquid is passed through the heating element at a first flow rate. The first flow rate is greater than the rated flow rate. This step can increase the outlet water flow rate.

[0171] S806 allows the liquid to pass through the heating component at a set high flow rate V to heat the liquid. At this time, the remaining power (total power - power of the downstream heating component) is greater than or equal to the rated charging power of the preheating component, and the preheating component is dynamically charged at full power, extending the working time of the preheating component.

[0172] Specifically, the rated charging power of the preheating module depends on the heat transfer efficiency between the heating element and the energy storage medium. If the charging power is too high, it may cause excessively rapid local temperature rise and uneven preheating module temperature, affecting module performance stability (for example, local temperatures exceeding 100℃ can cause water to boil directly when flowing through the preheating module, leading to pipe blockage or noise). If the rated charging power is too low, the charging time will be too long, affecting user experience. Generally, the designed rated charging power is between 400W and 800W.

[0173] Furthermore, at the second set temperature T1, under the preset high flow rate, the back-end heating component heats to the boiling point, while the remaining power can provide a balanced temperature for the preheating component to fully charge the preheating component.

[0174] S808 heats the liquid at a set high flow rate V and charges the preheating component with dynamic variable power. Specifically, when the dynamic outlet temperature of the preheating component is between T1 and T4, liquid is discharged at the set high flow rate V (i.e., the set flow rate). At this time, the remaining power (total power - power of the downstream heating component) is less than the rated charging power of the preheating component. Therefore, the preheating component is charged with dynamic variable power to extend the system's operating time. During this time, some idle power is used to charge the preheating component, and the charging power is less than the rated charging power of the preheating component. T4 is the decreasing boiling point determination temperature. This temperature is reached when, at the preset high flow rate (i.e., when liquid is discharged at the set high flow rate V), the outlet temperature of the heating component just meets the boiling point requirement when the downstream heating component is heating at full power.

[0175] The S810 reduces the flow rate to below the preset high flow rate, but still allows the second flow rate, which is higher than that of traditional instant water heaters, to pass through the heating element. The rear heating element operates at full power, which can heat the liquid to boiling.

[0176] The S812 system heats the liquid at the flow rate of a traditional instant water heater (i.e., the second flow rate), with the back-end heating components operating at full power.

[0177] The above steps involve the flow rate regulation process after liquid discharge. At the initial moment of initiating liquid discharge, the initial velocity can be determined as follows:

[0178] S800 checks whether the instantaneous temperature of the preheating component of the high-flow instant hot water dispenser has reached (T4 + heat exchange threshold temperature ΔT). If it has, water is supplied according to the high-flow liquid output rate V. If it has not, the liquid is heated at the flow rate of a traditional instant hot water dispenser (i.e., the second flow rate), the rear heating component operates at full power, and the preheating component does not store heat. In other words, only the rear heating component is used for heating, and the liquid output flow rate is the same as a traditional instant hot water dispenser. After dispensing, the normal flow rate can be adjusted according to S802-S808. The heat exchange threshold temperature ΔT is the temperature difference between the preheating component and the system temperature when dispensing liquid according to the preheating component's setting V; generally, the preheating component's temperature is higher than the liquid output temperature, with ΔT between 2℃ and 6℃.

[0179] In another embodiment, the initial velocity at the initial moment of initiation of the response to liquid discharge can also be determined in the following manner:

[0180] Water is supplied at a preset high flow rate V. By judging the instantaneous temperature of the preheated liquid, the system is assessed to determine which heating step range it is in, and then operates according to the heating step sequence.

[0181] T0 is typically between 80°C and 98°C, the phase change temperature of the energy storage medium. Excessively high temperatures can cause the water in the preheating component's piping to boil, affecting the liquid output from the branch and causing noise; conversely, excessively low preset temperatures will result in too low an outlet temperature after preheating, affecting the boiling flow rate.

[0182] According to the control method provided in this application, a dynamic charging stage is preset in stages S02-S804. During the stage where the downstream heating component is not heating at full power, the preheating component is simultaneously charged, so that the preheating component can replenish a certain amount of heat while releasing energy, thus extending the component's service life. This maximizes the utilization efficiency of the preheating component, extends its effective working time, and achieves longer-lasting high-flow-rate boiling. However, in stages S806-S808, the downstream heating component needs to operate at full power, the preheating component is not charged, and the component's working time cannot be extended.

[0183] The following is based on Figure 9 Taking the preheating temperature rise curve as an example, the control method of the system is further introduced. The system setting parameters are as follows: (1) Preheating component equilibrium temperature T0 = 86℃, ΔT = 5℃, rated charging power W1 = 600W; (2) Large flow rate V = 10g / s, conventional instant hot water machine flow rate V = 6.5g / s; (3) Second set temperature T1 = 62℃; (4) System ambient temperature T2 = 25℃; (5) Deceleration critical temperature T4 = 48℃; (6) First set temperature T3 = 70℃. The control method provided in this embodiment includes:

[0184] Initial flow rate determination step A0: Determine whether the preheating component of the high-flow instant hot water dispenser reaches 53℃; (1) If it reaches 53℃, supply water at a flow rate of 10g / s, determine which heating zone it is in based on the water temperature after preheating, and continue working according to the zone it is in; (2) If it does not reach 53℃, jump directly to step S4, and use only the post-heating component for heating. At this time, the liquid flow rate is the same as that of a traditional instant hot water dispenser.

[0185] Initial flow rate determination step A0: It can also be set to supply water at a preset high flow rate of 10g / s, and by judging the instantaneous temperature of the preheated liquid, assess which heating step range the system is in, and work according to the heating step sequence.

[0186] Liquid flow rate adjustment steps: During the liquid dispensing process, obtain the temperature of the preheated liquid; control the flow rate of the liquid through the heating element based on the temperature range of the preheated liquid. For example... Figure 9 As shown, based on temperature, it is roughly divided into four stages. Specifically, these include:

[0187] In the first stage A1, the temperature of the preheated liquid is much higher than that of T3 (70℃). At this time, the flow rate V1>V_set (10g / s-15g / s) can be increased to improve the outflow rate.

[0188] Phase 2 A2: Continued operation. The preheating component continuously consumes energy, and the outlet water temperature gradually decreases (70℃~60℃). After preheating, the temperature is much higher than T1 (60℃) but lower than T3, while the flow rate remains at V1. At this point, the power required for downstream boiling is W2 = (100-T1)×Cp×V, which is assumed to be ≤1600W, where Cp is the specific heat capacity of water. The remaining power is then W = W0 - W2 ≥ 2300 - 1600 = 700W ≥ W1. Considering thermal efficiency and system safety, when T1 ≥ 62℃, the remaining power is higher than the rated charging power of the preheating component, allowing for full power charging of the preheating component and extending its operating time.

[0189] Furthermore, as the preheated water temperature gradually decreases to the second set temperature T1 = 60℃, the flow rate gradually decreases to the preset flow rate Vset, which is generally 10g / s. At this time, the power required for boiling at the downstream end is W2 = (100℃ - T1) × Cp × Vset ≤ 1600W. Then, the remaining power is W = W0 - W2 ≥ 2300 - 1600 = 700W ≥ W1. Considering the electrothermal conversion efficiency and voltage fluctuation, when T1 ≥ 62℃, the remaining power is higher than the rated charging power of the preheating component, and the preheating component can be charged at full power to extend the working time of the component. Therefore, when the liquid flow rate Vset = 10g / s, the second set temperature T1 should not be lower than 62℃.

[0190] Phase 3, A3: During the temperature range of T1-T4: After continuous energy consumption, the liquid outlet temperature of the preheating component gradually decreases (62℃~48℃). The remaining power is less than the rated charging power of the preheating component, so some of the power can be used to charge the preheating component, extending the component's working time. During this phase, the liquid continues to be heated by passing through the heating component at a set flow rate.

[0191] Furthermore, the critical temperature for slowing down is T4 = 48℃, which is the preset high flow rate V_set = 10g / s. The back-end heating components are heated at full power to meet the equilibrium temperature of boiling. The power required for the back-end heating is W2 = (100℃ - T3) × Cp × V2 = 52 × 4.2 × 10 = 2184W. The reason for this is that the limit power of the back-end heating does not exceed 2300W. Considering the electrothermal conversion efficiency and voltage fluctuations, the design limit of 2200W is reasonable. Therefore, under the condition of an overspeed liquid outflow rate V_set = 10g / s, the critical temperature for slowing down of the preheating components T4 should not be lower than 48℃.

[0192] Furthermore, when the preheated liquid temperature T is between 48℃ and 62℃, the power required for the downstream boiling is W2 = (100℃ - T) × Cp × V. If W2 is between 1600W and 2200W, then the remaining power W is between 0W and 700W. Considering thermal efficiency and system safety, the remaining power is less than the rated charging power of the preheating component, so part of the power can be used to charge the preheating component and extend the component's working time.

[0193] Stage 4 A4: When the preheated water temperature is lower than T4 (≤48℃) but higher than the system ambient temperature T2, the flow rate is reduced to below 10g / s, but can still be higher than the traditional instant water heater flow rate of 6.5g / s. At this time, the back-end heating components need to work at full power to boil the water, and there is no remaining power to charge the preheating components.

[0194] Stage 5 A5: When the water temperature drops below T2 (25℃) after preheating, the flow rate gradually decreases to the traditional instant water heater flow rate of 6.5g / s, and the back-end heating components operate at full power.

[0195] The liquid handling system also includes a liquid collection box 54, which is equipped with a constant flow outlet valve to adjust the liquid flow rate and stabilize it at a preset flow rate. If the system maintains the fifth stage of operation for a long period of time, the liquid in the liquid collection box 54 will decrease to a certain value, and the liquid flow rate will be adjusted to the normal flow rate to ensure continuous liquid output.

[0196] In embodiments of the present invention, the terms "first," "second," and "third" are used only for descriptive purposes and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in embodiments of the present invention according to the specific circumstances.

[0197] Furthermore, although the operations are described in a specific order, this should be understood as requiring that such operations be performed in the specific order shown or in sequential order, or requiring that all illustrated operations be performed to achieve the desired result. In certain environments, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the invention. Certain features described in the context of individual embodiments may also be implemented in combination in a single implementation. Conversely, various features described in the context of a single implementation may also be implemented individually or in any suitable sub-combination in multiple implementations.

[0198] Although the subject matter has been described using language describing specific structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

[0199] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Those skilled in the art will recognize that various modifications and variations are possible with respect to the embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of the present invention should be included within the protection scope of the embodiments of the present invention.

Claims

1. A control method for a liquid handling system, characterized in that, The liquid handling system is a desktop water dispenser. The system includes a preheating component and a heating component. The preheating component stores heat and can use the stored heat to preheat the liquid passing through it. The heating component reheats the preheated liquid. The control method includes: During the liquid discharge process, the temperature of the liquid after preheating by the preheating component is obtained; When the temperature of the preheated liquid is greater than or equal to the first set temperature, the liquid is controlled to pass through the heating component at a first flow rate, where the first flow rate is greater than the set flow rate. The control method for the liquid handling system further includes one or more of the following steps: When the temperature of the preheated liquid is less than the first set temperature but greater than or equal to the second set temperature, the flow rate of the liquid through the heating component is greater than the set flow rate but less than or equal to the first flow rate. When the preheated liquid temperature is less than or equal to the second set temperature and greater than or equal to the deceleration critical temperature, the liquid is controlled to pass through the heating component at the set flow rate. When the temperature of the preheated liquid is less than the critical temperature for slowing down but greater than the ambient temperature of the system, the flow rate of the liquid through the heating component is less than or equal to the set flow rate but greater than the second flow rate, where the second flow rate is the normal flow rate. When the preheated liquid temperature is less than or equal to the system ambient temperature, the liquid is controlled to pass through the heating component at a second flow rate, which is less than the set flow rate. When the temperature of the preheated liquid is greater than or equal to the second set temperature, the preheating component stores heat at full power. When the temperature of the preheated liquid is less than the second set temperature but greater than the critical temperature for slowing down, the heating component heats the liquid with a first power, and the preheating component stores heat with a second power. The second power is less than or equal to the remaining power after subtracting the first power from the target power, and the first power is less than the full power of the heating component. When the temperature of the liquid after preheating by the preheating component is less than or equal to the critical temperature for decreasing rate, the heating component heats at full power, and the preheating component stops storing heat.

2. The control method for the liquid handling system according to claim 1, characterized in that, The step of making the flow rate of the liquid through the heating component greater than the set flow rate and less than or equal to the first flow rate specifically includes: During the process of the liquid temperature decreasing from the first set temperature to the second set temperature after being preheated by the preheating component, the flow rate of the liquid through the heating component gradually decreases from the first flow rate to the set flow rate.

3. The control method for the liquid handling system according to claim 1, characterized in that, When the remaining power is greater than or equal to the power of the preheating component when it is at full power for heat storage, the preheating component stores heat at the power of the full power for heat storage; when the remaining power is less than the power of the preheating component when it is at full power for heat storage, the preheating component stores heat at the remaining power.

4. The control method for the liquid handling system according to claim 1, characterized in that, The set flow rate is greater than or equal to 9 g / s and less than or equal to 15 g / s, and / or the second flow rate is greater than or equal to 6.5 g / s and less than or equal to 10 g / s; The first set temperature is greater than or equal to 70°C; the second set temperature is greater than or equal to 58°C and less than or equal to 69°C; and / or The critical temperature for deceleration is greater than or equal to 38°C and less than or equal to 55°C. The temperature of the liquid after preheating by the preheating component is equal to the critical temperature of the rate of decrease. When the heating component heats at full power and the liquid passes through the heating component at the set flow rate, the liquid outlet temperature of the heating component is equal to the preset target liquid outlet temperature.

5. The control method for the liquid handling system according to any one of claims 1 to 4, characterized in that, Also includes: In response to a heating command, the temperature of the preheating component is acquired, and the initial liquid volume passing through the heating component is determined based on the temperature of the preheating component. In response to a heating command, the liquid is controlled to flow through the heating component at a set rate.

6. The control method for the liquid handling system according to claim 5, characterized in that, The step of determining the initial liquid volume passing through the heating component based on the temperature of the preheating component includes: When the temperature of the preheating component is greater than or equal to the first temperature value, the liquid is controlled to pass through the heating component at a third flow rate, which is greater than the set flow rate. When the temperature of the preheating component is less than the first temperature value but greater than or equal to the system ambient temperature, the liquid is controlled to flow through the heating component at a fourth flow rate, the heating component heats at full power, the preheating component stops storing heat, and the fourth flow rate is greater than or equal to the second flow rate but less than the set flow rate. When the temperature of the preheating component is lower than the system ambient temperature, the liquid is controlled to flow through the heating component at a second flow rate, the heating component heats at full power, and the preheating component stops storing heat.

7. The control method for the liquid handling system according to claim 6, characterized in that, The first temperature value is the temperature when the preheating component completes energy storage, that is, the temperature of the phase change material after the preheating component completes heat storage, or the first temperature value is greater than or equal to 80℃ and less than or equal to 100℃.

8. The control method for the liquid handling system according to any one of claims 1 to 4, characterized in that, Also includes: In the non-heating state, the preheating component is controlled to store heat at a first heat storage power, and after heat storage is completed, it is kept warm at a second heat storage power, wherein the first heat storage power is greater than the second heat storage power; and / or Within a preset time after startup, the liquid handling system is put into a heating-prohibited state, and the preheating component performs full-power heat storage.

9. The control method for the liquid handling system according to any one of claims 1 to 4, characterized in that, The liquid handling system further includes a liquid collection box for collecting the liquid output from the heating component and a liquid discharge component for discharging the liquid collection box. The control method further includes: In response to a heating command, the liquid outlet component is controlled to dispense liquid at a first liquid outlet flow rate, which is equal to a set flow rate ±6°C. When the liquid volume in the collection box is less than the preset flow rate, the liquid outlet component is controlled to discharge liquid at a second liquid outlet flow rate. The second liquid outlet flow rate is less than the first liquid outlet flow rate and is equal to the set flow rate ±6°C.

10. A control device for a liquid handling system, characterized in that, The liquid handling system is a desktop water dispenser. The system includes a preheating component and a heating component. The preheating component stores heat and can use the stored heat to preheat the liquid passing through it. The heating component reheats the preheated liquid. The control device includes: The acquisition unit is used to acquire the temperature of the liquid after it has been preheated by the preheating component during the liquid discharge process. The control unit is configured to control the liquid to pass through the heating assembly at a first flow rate when the preheated liquid temperature is greater than or equal to a first set temperature, wherein the first flow rate is greater than the set flow rate. The control unit is further configured to, when the temperature of the preheated liquid is less than the first set temperature but greater than or equal to the second set temperature, make the flow rate of the liquid through the heating component greater than the set flow rate but less than or equal to the first flow rate. When the preheated liquid temperature is less than or equal to the second set temperature and greater than or equal to the deceleration critical temperature, the liquid is controlled to pass through the heating component at the set flow rate. When the temperature of the preheated liquid is less than the critical temperature for slowing down but greater than the ambient temperature of the system, the flow rate of the liquid through the heating component is less than or equal to the set flow rate but greater than the second flow rate, where the second flow rate is the normal flow rate. When the preheated liquid temperature is less than or equal to the system ambient temperature, the liquid is controlled to pass through the heating component at a second flow rate, which is less than the set flow rate. The control unit is further configured to, when the preheated liquid temperature is greater than or equal to the second set temperature, have the preheating component store heat at full power. When the temperature of the preheated liquid is less than the second set temperature but greater than the critical temperature for slowing down, the heating component heats the liquid with a first power, and the preheating component stores heat with a second power. The second power is less than or equal to the remaining power after subtracting the first power from the target power, and the first power is less than the full power of the heating component. When the temperature of the liquid after preheating by the preheating component is less than or equal to the critical temperature for decreasing rate, the heating component heats at full power, and the preheating component stops storing heat.

11. A control device for a liquid handling system, characterized in that, It includes a memory and a processor, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the control method for the liquid handling system as described in any one of claims 1 to 9.

12. A readable storage medium having a program or instructions stored thereon, characterized in that, When the program or the instructions are executed by the processor, they implement the steps of the control method for the liquid handling system as described in any one of claims 1 to 9.

13. A liquid handling system, characterized in that, include: Control device for a liquid handling system as described in claim 10 or 11; and / or The readable storage medium as described in claim 12.

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