A bubble water water heater and its water temperature control method, equipment and storage medium

Abstract

This application relates to an aerated water water heater and its water temperature control method, device, and storage medium, belonging to the field of gas water heaters. The method includes: when a water flow signal is detected, determining whether a preset gas replenishment trigger condition is met; if the gas replenishment trigger condition is met, then real-time acquisition of the water heater's operating parameters; based on the operating parameters, constructing a water outage and restart temperature fluctuation curve; based on the water outage and restart temperature fluctuation curve, calculating the outlet water temperature of the dissolved air tank; determining a target gas-liquid ratio based on the fluctuation characteristics of the outlet water temperature, and performing a gas replenishment operation on the dissolved air tank based on the target gas-liquid ratio and the target gas replenishment time calculated based on the target gas-liquid ratio; compared with the prior art, the technical solution of this application achieves flexible adjustment of the gas-liquid ratio of the dissolved air tank by dynamically acquiring operating parameters, determining the target gas-liquid ratio based on the water outage and restart temperature fluctuation curve, and precisely controlling the gas replenishment time, thus balancing bubble generation efficiency and constant temperature performance, and improving bathing comfort.

Description

Technical Field

[0001] This application relates to the technical field of gas water heaters, and in particular to a bubble water water heater and its water temperature control method, equipment and storage medium. Background Technology

[0002] Micro-nano bubble water, with its enhanced water activity and improved bathing experience, has been widely used in gas water heaters. Its core component, the dissolved air tank, generates micro-nano bubble water by dissolving air. In actual operation, the water level in the dissolved air tank dynamically changes with gas consumption. When the water level is high, the amount of air in the tank decreases, reducing dissolved air efficiency and the amount of bubbles generated. However, the larger water volume and higher heat capacity help maintain a stable outlet water temperature. Conversely, when the water level is low, the air content increases, enhancing dissolved air efficiency and increasing bubble generation. However, the smaller water volume leads to insufficient heat capacity, decreased temperature control, and the outlet water temperature is easily affected by fluctuations in the inlet water temperature.

[0003] To maintain the air supply to the dissolved air tank, existing technologies mainly use a fixed-mode air pump or a water pump to draw in air under negative pressure. Both of these are mechanical air supply logics, lacking the ability to dynamically sense and adjust key operating parameters. For example, during the air supply process, in order to ensure the amount of air supplied, it is often necessary to empty the original air in the tank, which leads to a sharp drop in water level or even a short period of no water. This results in a serious lack of heat capacity, further exacerbating the deterioration of the constant temperature performance of the water heater during start-up and shutdown or water pressure fluctuations, and affecting the comfort of bathing.

[0004] Furthermore, existing technologies do not comprehensively consider the impact of variables such as inlet water temperature, set temperature, and water flow rate on gas-liquid balance and thermal stability, and cannot flexibly adjust the gas replenishment strategy according to actual operating conditions. This not only makes it difficult to achieve both efficient bubble water generation and constant temperature effect, but also results in insufficient endurance, making it difficult to meet users' needs for comfortable hot water supply in different usage scenarios. Therefore, there is an urgent need for a water temperature control solution that can dynamically adjust the gas-liquid ratio and improve constant temperature performance. Summary of the Invention

[0005] This application provides a bubble water water heater and its water temperature control method, equipment and storage medium. By dynamically collecting operating parameters, determining the target gas-liquid ratio based on the temperature fluctuation curve after water is turned on and off, and accurately controlling the gas replenishment time, the gas-liquid ratio of the dissolved air tank can be flexibly adjusted, taking into account both bubble generation efficiency and constant temperature performance, thereby improving bathing comfort.

[0006] In a first aspect, this application provides a water temperature control method for an aerated water water heater, the aerated water water heater including a dissolved air tank, the method comprising: when a water flow signal is detected, determining whether a preset air replenishment trigger condition is met; if the air replenishment trigger condition is met, then real-time acquisition of the water heater's operating parameters; based on the operating parameters, constructing a water outage and restart temperature fluctuation curve; based on the water outage and restart temperature fluctuation curve, calculating the outlet water temperature of the dissolved air tank; determining a target gas-liquid ratio according to the fluctuation characteristic index of the outlet water temperature, and performing an air replenishment operation on the dissolved air tank based on a target air replenishment duration calculated based on the target gas-liquid ratio.

[0007] In one possible implementation, the target gas replenishment time calculated based on the target gas-liquid ratio specifically includes: obtaining the target water level of the dissolved air tank corresponding to the target gas-liquid ratio, obtaining the current water level of the dissolved air tank, calculating the water level difference between the target water level and the current water level, and determining the required gas replenishment amount of the dissolved air tank based on the water level difference; obtaining the rated speed of the air pump or water pump in the water heater, and calculating the target gas replenishment time based on the required gas replenishment amount and the rated speed.

[0008] In one possible implementation, determining whether a preset gas replenishment trigger condition is met specifically includes: if the current water usage is the first water usage after power-on, determining whether the user has used the sparkling water function, and whether the sparkling water function is a hot sparkling water function; if so, determining that the preset gas replenishment trigger condition is met; or, if the current water usage is the first water usage after power-on, determining whether the user has used the sparkling water function; if not, obtaining the cumulative usage time of the sparkling water, determining whether the cumulative usage time of the sparkling water is greater than a preset maximum value for the cumulative usage time of the sparkling water; if so, resetting the cumulative usage time of the sparkling water to zero. The system processes and determines whether the user is using the hot sparkling water function. If so, it determines that the preset gas replenishment trigger condition is met. Alternatively, if the current water usage is the first water usage after powering on, it determines whether the user is using the sparkling water function. If not, it obtains the cumulative sparkling water flow rate and determines whether the cumulative sparkling water flow rate is greater than the preset maximum cumulative sparkling water flow rate. If so, it resets the cumulative sparkling water flow rate to zero and determines whether the user is using the hot sparkling water function. If so, it determines that the preset gas replenishment trigger condition is met. The preset gas replenishment trigger condition is the hot sparkling water function gas replenishment trigger condition.

[0009] In one possible implementation, based on the operating parameters, a water outage and restart temperature fluctuation curve is constructed, and based on the water outage and restart temperature fluctuation curve, the outlet water temperature of the dissolved air tank is calculated. Specifically, this includes: generating a heating section temperature curve based on the operating parameters, calculating the heat load based on the operating parameters, and then establishing a water outage temperature overshoot curve based on the heat load, a preset current set temperature, and a post-purge air velocity; superimposing the heating section temperature curve and the water outage temperature overshoot curve to obtain the water outage and restart temperature fluctuation curve; and calculating the outlet water temperature of the dissolved air tank based on the water outage and restart temperature fluctuation curve.

[0010] In one possible implementation, the outlet water temperature of the dissolved air tank is calculated based on the temperature fluctuation curve after the water supply is interrupted and restarted. Specifically, this includes: obtaining the real-time dissolved air tank parameters corresponding to the dissolved air tank, wherein the real-time dissolved air tank parameters include the initial water temperature, dissolved air tank volume, initial water volume of the dissolved air tank, real-time water flow rate, and mixing coefficient; and substituting the temperature fluctuation curve after the water supply is interrupted and restarted and the real-time dissolved air tank parameters into a preset formula for calculating the outlet water temperature of the dissolved air tank to obtain the outlet water temperature of the dissolved air tank.

[0011] In one possible implementation, determining the target gas-liquid ratio based on the fluctuation characteristic index of the outlet water temperature specifically includes: acquiring the fluctuation characteristic index of the outlet water temperature, wherein the fluctuation characteristic index includes the fluctuation amplitude corresponding to the outlet water temperature; comparing the fluctuation amplitude with a preset fluctuation amplitude constraint threshold, and selecting a first gas-liquid ratio candidate set that meets the fluctuation amplitude constraint from a preset gas-liquid ratio set; comparing the predicted bubble water runtime corresponding to each first candidate gas-liquid ratio in the first gas-liquid ratio candidate set with the preset bubble water runtime constraint threshold, and selecting a second gas-liquid ratio candidate set that meets the bubble water runtime constraint from the first gas-liquid ratio candidate set. A candidate gas-liquid ratio set is established; the actual fluctuation characteristic index corresponding to each candidate gas-liquid ratio in the second candidate gas-liquid ratio set pre-stored under a standard test environment is obtained, and the optimal gas-liquid ratio under the standard test environment is determined; the operating parameters are compared with the standard operating parameters corresponding to the standard test environment, and the optimal gas-liquid ratio is corrected based on the obtained parameter comparison results to obtain the target gas-liquid ratio; wherein, the target water level of the dissolved air tank corresponding to the target gas-liquid ratio is between a preset maximum water level and a preset minimum water level, the preset maximum water level is determined by the fluctuation amplitude constraint threshold, and the preset minimum water level is determined by the bubble water endurance constraint threshold.

[0012] Secondly, this application provides a bubble water water heater, comprising: a main controller for the water heater, wherein the main controller includes a gas replenishment detection module, an outlet water temperature determination module, and a gas replenishment module; wherein the gas replenishment detection module is used to determine whether a preset gas replenishment trigger condition is met when a water flow signal is detected, and if the gas replenishment trigger condition is met, the operating parameters of the water heater are acquired in real time; the outlet water temperature determination module is used to construct a water outage and restart temperature fluctuation curve based on the operating parameters, and calculate the outlet water temperature of the dissolved air tank based on the water outage and restart temperature fluctuation curve; the gas replenishment module is used to determine a target gas-liquid ratio according to the fluctuation characteristic index of the outlet water temperature, and perform a gas replenishment operation on the dissolved air tank based on a target gas replenishment time calculated based on the target gas-liquid ratio.

[0013] In one possible implementation, the aerated water water heater provided in this application further includes: a dissolved air tank, an air pump, a water pump, a water flow sensor, and a water pressure sensor; wherein, the main controller of the water heater is connected to the water pump, the water flow sensor, and the water pressure sensor respectively; the water pressure sensor is disposed inside the dissolved air tank, and the air pump is connected to the passage leading to the dissolved air tank.

[0014] Thirdly, embodiments of this application also provide a computer device, which includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the above-described method.

[0015] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a computer program that, when executed by a processor, can implement the above-described method.

[0016] This application provides a bubble water water heater and its water temperature control method, device, and storage medium, which have the following advantages compared with the prior art:

[0017] When a water flow signal is detected, it is determined whether a preset gas replenishment trigger condition is met. If the gas replenishment trigger condition is met, the operating parameters of the water heater are collected in real time. Based on the operating parameters, a water outage and restart temperature fluctuation curve is constructed. Based on the water outage and restart temperature fluctuation curve, the outlet water temperature of the dissolved air tank is calculated. The target gas-liquid ratio is determined according to the fluctuation characteristic index of the outlet water temperature, and the target gas replenishment time is calculated based on the target gas-liquid ratio to perform gas replenishment operation on the dissolved air tank. Compared with the prior art, the technical solution of this application uses a water flow signal to trigger gas replenishment judgment and collects operating parameters in real time, combined with... The system accurately calculates the outlet water temperature based on the temperature fluctuation curve after water outages and restarts. It determines the appropriate target gas-liquid ratio and gas replenishment time based on the fluctuation characteristics. This avoids the problems of sudden water level drop and insufficient heat capacity caused by purging the original air during traditional gas replenishment. It can also dynamically adapt to changes in operating parameters such as inlet water temperature and water flow rate. While ensuring dissolved air efficiency and bubble generation, it maintains the stability of the dissolved air tank's heat capacity and reduces the impact of inlet water fluctuations or start-up / stop times on the outlet water temperature. It effectively balances the bubble water generation effect and constant temperature performance, solving the pain points of insufficient endurance and poor comfort of existing technologies, and meeting the comfortable hot water needs in different scenarios. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0021] Figure 1 This is a flowchart illustrating one embodiment of a water temperature control method for a bubble water water heater provided in this application;

[0022] Figure 2 This is a schematic diagram of the structure of one embodiment of a bubble water water heater provided in this application;

[0023] Figure 3 This is another structural schematic diagram of an embodiment of a bubble water water heater provided in this application;

[0024] Figure 4This is another structural schematic diagram of an embodiment of a bubble water water heater provided in this application;

[0025] Figure 5 This is a schematic diagram of the structure of a computer device provided in this application. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0028] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0029] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0030] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0031] As used in this specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0032] Example 1, see Figure 1 , Figure 1 This is a schematic flowchart of one embodiment of a water temperature control method for an aerated water water heater provided in this application, as shown below. Figure 1 As shown, the method includes steps 101-103, as detailed below:

[0033] Step 101: When a water flow signal is detected, determine whether the preset gas replenishment trigger condition is met. If the gas replenishment trigger condition is met, collect the operating parameters of the water heater in real time.

[0034] In one embodiment, the water heater includes a water heater body and a water flow sensor. The water flow sensor is installed in the water path between the water inlet of the water heater and the water heater body to collect the water flow in the water path in real time and generate a water flow signal when water flow is detected.

[0035] Specifically, the water heater also includes a main controller; the main controller is connected to the water flow sensor and is used to receive the water flow signal sent by the water flow sensor.

[0036] Specifically, when the user opens the hot water valve, water flow is generated at the water inlet of the water heater. The water flow drives the impeller inside the water flow sensor to rotate. The water flow sensor converts the mechanical rotation signal into an electrical signal and transmits the electrical signal to the main controller of the water heater in real time.

[0037] In one embodiment, determining whether the preset gas replenishment trigger condition is met can be done as follows: if the current water usage is the first water usage after powering on, then determine whether the user is using the sparkling water function and whether the sparkling water function is a hot sparkling water function. If so, then determine that the preset gas replenishment trigger condition is met.

[0038] Specifically, because existing technologies use a fixed mode for gas replenishment, the original air in the dissolved air tank often needs to be emptied, leading to a sudden drop in water level and insufficient heat capacity, especially during start-up and shutdown when the temperature-regulating performance deteriorates significantly. The first water use after startup is a typical initial stage after startup and shutdown. After the water heater is turned off, there may be residual gas-liquid mixture in the dissolved air tank that has not been completely discharged. After the standby period, the gas in the tank may decrease due to factors such as dissolution and leakage, or the water level may change due to the backflow of residual water in the pipes. Ultimately, this causes the gas-liquid ratio to deviate from the optimal range that balances bubble generation and temperature regulation. Therefore, setting a condition for determining the first water use after startup can prioritize initiating the gas replenishment process. Through subsequent collection of operating parameters and precise gas replenishment, the state of the dissolved air tank can be corrected to the optimal level, thus avoiding the water temperature fluctuation problem caused by the initial gas-liquid imbalance in existing technologies from the source.

[0039] Specifically, when using water for the first time after powering on, if it is in hot bubble water mode, it indicates that the user has a higher demand for initial water comfort. If the gas-liquid balance in the dissolved air tank is off at this time, problems such as excessively high / low initial water temperature and insufficient bubble quantity may occur, directly affecting the user experience. Therefore, the judgment condition for the first use after powering on is set, prioritizing the verification of whether the bubble water function is used, and whether the bubble water function is the hot bubble water function. Once the conditions are met, the dynamic gas replenishment process is immediately started to ensure that when using hot bubble water for the first time after powering on, the heat capacity can be guaranteed by the appropriate water level, and the bubble generation can be guaranteed by the sufficient gas, so as to achieve precise control of gas replenishment on demand.

[0040] Specifically, the main controller of the water heater can read the bubble water function command on the water heater's human-machine interface, such as the water heater display panel or APP. If it detects that the user has triggered the bubble water function, it will continue to detect whether the water pump in the water heater is started and whether the one-way valve is open. If so, it will determine that the user is using the bubble water function.

[0041] Specifically, the main controller of the water heater can continue to read the hot bubble water function command on the water heater's human-machine interface, such as the water heater display panel or the APP. If it detects that the user has triggered the hot bubble water function, it determines that the user is using the hot bubble water function.

[0042] In one embodiment, determining whether the preset gas replenishment trigger condition is met can also be done as follows: if the current water usage is the first water usage after powering on, determine whether the user is using the sparkling water function; if not, obtain the cumulative usage time of the sparkling water, determine whether the cumulative usage time of the sparkling water is greater than the preset maximum cumulative usage time of the sparkling water; if so, reset the cumulative usage time of the sparkling water to zero, and determine whether the user is using the hot sparkling water function; if so, determine that the preset gas replenishment trigger condition is met.

[0043] Specifically, the main controller of the water heater can read the bubble water function command on the water heater's human-machine interface, such as the water heater's control panel or APP. If it detects that the user has not triggered the operation signal of the bubble water function, and detects that the water pump in the water heater has not started and the one-way valve is in the closed state, it determines that the user has not used the bubble water function.

[0044] Specifically, the main controller of the water heater has a built-in timer for the use of sparkling water. Every time the user uses the sparkling water function, the timer will accumulate the actual usage time of the sparkling water in real time, that is, the time from when the sparkling water function is turned on to when it is turned off, and store the accumulated usage time of the sparkling water in the historical data register.

[0045] Specifically, the water heater's main controller retrieves the cumulative usage time of the sparkling water from the historical data register and compares it with the preset maximum cumulative usage time of the sparkling water. If the cumulative usage time of the sparkling water is greater than the maximum cumulative usage time, it means that the gas in the dissolved air tank has been consumed to the point that it cannot meet the demand for the next use of sparkling water. This may result in insufficient bubble quantity or decreased temperature control performance. In this case, it is necessary to initiate the subsequent function to determine whether the user is using hot sparkling water. If so, it is determined that the current operation meets the preset gas replenishment trigger condition. If the cumulative usage time of the sparkling water is not greater than the maximum cumulative usage time, it is determined that no gas replenishment is needed, and the normal water use process can be directly entered.

[0046] Specifically, if the cumulative usage time of sparkling water exceeds the maximum cumulative usage time of sparkling water, the main controller of the water heater sends a reset command to the sparkling water usage time timer to reset the cumulative usage time of sparkling water to 0, and simultaneously updates the historical data register to clear the old cumulative value, in preparation for the next accumulation of time for sparkling water usage. If it is not cleared, the old cumulative usage time of sparkling water will continue to accumulate, causing subsequent threshold comparisons to fail. This step ensures that the system can continuously and accurately monitor the usage status of sparkling water.

[0047] In one embodiment, when determining whether the preset gas replenishment trigger condition is met, it can also be done as follows: if the current water usage is the first water usage after power-on, determine whether the user is using the sparkling water function; if not, obtain the cumulative sparkling water flow rate, determine whether the cumulative sparkling water flow rate is greater than the preset maximum cumulative sparkling water flow rate; if so, clear the cumulative sparkling water flow rate to zero, and determine whether the user is using the hot sparkling water function; if so, determine that the preset gas replenishment trigger condition is met.

[0048] Specifically, the main controller of the water heater has a built-in aerated water flow accumulation unit. Every time the user uses the aerated water function, the aerated water flow timer will receive the water flow data transmitted by the water flow sensor in the water heater in real time, and accumulate the total water volume used each time by integral calculation to obtain the aerated water flow, and store it in the historical flow register of the main controller of the water heater.

[0049] Specifically, the water heater's main controller retrieves the cumulative flow rate of the sparkling water from the historical flow register and compares it with the preset maximum cumulative flow rate of the sparkling water. If the cumulative flow rate of the sparkling water is greater than the maximum cumulative flow rate, it means that the gas in the dissolved air tank has been consumed to the point that it cannot meet the demand for the next use of sparkling water. The system then needs to determine whether the user wants to use the hot sparkling water function. If so, it determines that the preset gas replenishment trigger condition is met. If the cumulative flow rate of the sparkling water is not greater than the maximum cumulative flow rate, it determines that no gas replenishment is needed and the system directly enters the normal water usage process.

[0050] Specifically, if the cumulative flow of sparkling water exceeds the maximum cumulative flow of sparkling water, the main controller of the water heater sends a reset command to the cumulative flow of sparkling water unit to reset the cumulative flow of sparkling water to 0 and simultaneously clear the old data in the historical flow register, in preparation for the flow accumulation of the next use of sparkling water. If it is not cleared, the old cumulative flow of sparkling water will continue to accumulate, causing the subsequent threshold comparison to fail. This step can ensure that the system can continuously and accurately monitor the usage status of sparkling water.

[0051] Preferably, the maximum cumulative flow rate of the sparkling water can be understood as the theoretically usable cumulative flow rate. When calculating the maximum cumulative flow rate, for example, with a fixed tank size, if the air volume ratio in the tank is 50% after 6 seconds of air replenishment, test and record the water flow rate and the state of the sparkling water. Stop timing when the effect of the sparkling water deteriorates to a negligible degree. Obtain the water flow rate (e.g., 8L / min) and usage time (e.g., 420s), and the cumulative usable flow rate of the sparkling water is (8L / min * 420 / 60min = 56L). In this way, the usage time under different inflation times can be tested; x seconds of inflation corresponds to y, the cumulative usable flow rate of the sparkling water. The water flow rate is statistically analyzed in real time during the usage process, similar to integration. When 56L is used, it is determined that the actual cumulative flow rate of the sparkling water has reached this theoretical value, and thus the air replenishment operation is triggered.

[0052] Preferably, the maximum cumulative usage time of sparkling water can be understood as the theoretically cumulative usage time of sparkling water. When calculating the maximum cumulative usage time of sparkling water: the cumulative usage flow rate of sparkling water under different refueling times is obtained as above. Compared with the previous step of calculating the theoretically cumulative usage flow rate of sparkling water, here we assume that the water flow rate remains constant during this usage process (which conforms to most usage situations). For example, the water flow rate is 7.2L / min, and the cumulative usage flow rate of sparkling water is 56L. Then, the calculated cumulative usage time of sparkling water = 56L / (7.2L / min) = 7.78 minutes = 467 seconds. When the sparkling water is used for 467 seconds, it is determined that the actual cumulative flow rate of sparkling water has reached this theoretical value, and the refueling operation is triggered.

[0053] In one embodiment, the preset air replenishment trigger condition is the air replenishment trigger condition for the hot bubble water function.

[0054] In one embodiment, the operating parameters of the water heater are collected in real time, wherein the operating parameters include: inlet water temperature, set temperature and water flow rate.

[0055] Specifically, by installing a water temperature sensor at the inlet of the water heater, the initial temperature of the cold water entering the water heater is captured in real time and used as the inlet water temperature; then, through the connection with the main controller of the water heater, the inlet water temperature is transmitted to the main controller of the water heater.

[0056] Specifically, the set temperature is input by the user through the water heater's control panel, and the water heater's main controller can directly read the set temperature without the need for additional sensors.

[0057] Specifically, a water flow sensor installed on the water pipes of the water heater monitors the volume of water flowing through it in real time per unit time and uses this volume as the water flow rate. This water flow rate is then transmitted to the main controller of the water heater through a connection. The purpose of the water flow rate is to quantify the intensity of water demand. The higher the water flow rate, the more water needs to be heated per unit time, resulting in a higher heat load demand. At the same time, more stable water is needed in the dissolved air tank to balance the water temperature and avoid problems such as untimely heating and water temperature drop caused by a sudden increase in water flow rate.

[0058] Step 102: Based on the operating parameters, construct the water interruption and restart temperature fluctuation curve, and calculate the outlet water temperature of the dissolved air tank based on the water interruption and restart temperature fluctuation curve.

[0059] In one embodiment, a heating section temperature curve is generated based on the operating parameters, and the heat load is calculated based on the operating parameters. Then, based on the heat load and the preset current set temperature and the post-purge air velocity, a water outage temperature overshoot curve is established. The heating section temperature curve and the water outage temperature overshoot curve are superimposed to obtain a water outage restart temperature fluctuation curve. Based on the water outage restart temperature fluctuation curve, the outlet water temperature of the dissolved air tank is calculated.

[0060] Specifically, when generating the heating section temperature curve based on the inlet water temperature, the set temperature, and the water flow rate, the heat load is calculated based on the inlet water temperature, the set temperature, and the water flow rate. The heat load is compared with the preset rated heat load. If the heat load is within the rated heat load, the inlet water temperature and the set temperature are substituted into the preset heating time calculation formula to obtain the relationship between heating time and temperature rise, and this relationship is used as the heating section temperature curve.

[0061] Specifically, when calculating the heat load based on the inlet water temperature, the set temperature, and the water flow rate, the inlet water temperature, the set temperature, and the water flow rate are substituted into the heat load calculation formula to obtain the heat load. The heat load calculation formula is as follows:

[0062] ;

[0063] In the formula, For heat load, For the specific heat capacity of water, The density of water is generally taken as a fixed value. For water flow rate, To set the temperature, This refers to the inlet water temperature.

[0064] Specifically, the temperature curve of the heating section is as follows:

[0065] ;

[0066] In the formula, The heating time is calculated based on the inlet water temperature and the set temperature. The temperature difference between the inlet water temperature and the set temperature. To set the temperature, This refers to the inlet water temperature.

[0067] Preferably, to simplify the temperature curve of the heating section, the heating section is treated as a linear relationship, resulting in a temperature-time relationship between the heating section and time, which is then used as the simplified temperature curve of the heating section. As shown below:

[0068] .

[0069] Specifically, if the heat load is not within the rated heat load, that is, if the heat load is greater than the rated heat load, then it will be considered that the heating cannot reach the set temperature. In this case, the rated heat load will be... Substituting into the heat load calculation formula, we get Calculate the actual heating temperature that can be achieved. ,for Then, the actual heating temperature As the set temperature The temperature of the heating section is then substituted into the preset heating time calculation formula along with the inlet water temperature to obtain the heating section temperature curve.

[0070] Specifically, the water outage temperature overshoot curve is used to quantify the water temperature overshoot caused by residual heat in the heat exchanger after a water outage. Its establishment requires combining the heat load and the preset current set temperature and the post-purge air velocity. Among them, the heat load determines the peak value of the overshoot. The higher the heat load, the more residual heat there is, and the greater the overshoot amplitude. The post-purge air velocity determines the overshoot attenuation rate. The higher the air velocity, the faster the heat dissipation and the more rapidly the overshoot temperature drops. The set temperature is the reference anchor point of the overshoot curve.

[0071] Specifically, due to the significant influence of randomness and internal structure on overshoot temperature, it cannot be directly calculated theoretically. Therefore, the expression for the water outage temperature overshoot curve in this application is based on experimental testing and is mainly related to parameters such as heat load, preset current setting temperature, and post-purge air velocity. Currently, a standard test environment is set up with a water flow rate of 8 liters / L, an inlet water temperature of 20°C, and a setting of 42 degrees to test the water outage temperature overshoot curve under different water outage times. Then, the actual heat load, inlet water temperature, air velocity, and other parameters are adjusted by comparing them with the heat load, inlet water temperature, air velocity, etc. under the standard test to obtain the water outage temperature overshoot curve.

[0072] In one embodiment, when calculating the outlet water temperature of the dissolved air tank based on the water interruption and restart temperature fluctuation curve, the real-time dissolved air tank parameters corresponding to the dissolved air tank are obtained. The real-time dissolved air tank parameters include the initial water temperature, dissolved air tank volume, initial water volume of the dissolved air tank, real-time water flow rate, and mixing coefficient. The water interruption and restart temperature fluctuation curve and the real-time dissolved air tank parameters are substituted into a preset dissolved air tank outlet water temperature calculation formula to obtain the outlet water temperature of the dissolved air tank.

[0073] Specifically, based on the heat relationship between the inlet and outlet water during the mixing process, within the time interval Δt:

[0074] ;

[0075] In the formula, The water temperature in the dissolved air tank before mixing. This refers to the water temperature inside the dissolved air tank after mixing. Let V be the volume of water in the dissolved air tank. The water temperature after mixing. The water temperature before mixing. This is the time interval of the water mixing process, that is, the duration from when the water is turned off and then back on, when the water begins to enter the dissolved air tank for mixing, until the calculated time.

[0076] Assuming the water is mixed evenly, the water temperature in the dissolved air tank after mixing... equal to the water temperature after mixing This gives us the final relationship between the outlet water temperature and time, i.e., the mixed water expression, as shown below:

[0077] .

[0078] Since the system assumes the water temperature is stable before the water outage, meaning the water temperature in the dissolved air tank equals the set temperature, the obtained water outage-to-reopen temperature fluctuation curve is substituted into the mixing expression, i.e., the water temperature before mixing is used as the water outage-to-reopen temperature fluctuation curve. After mixing the water, the water temperature As the final outlet water temperature The outlet water temperature of the dissolved air tank can then be obtained.

[0079] .

[0080] Preferably, the temperature fluctuation curve due to water outage and restart The formula includes temperatures corresponding to multiple different time points, which are substituted into the mixing expression to calculate the outlet water temperature. There are also multiple options, namely, the outlet water temperature. It is actually an outlet water temperature curve that includes outlet water temperatures at multiple different time points.

[0081] Step 103: Determine the target gas-liquid ratio based on the fluctuation characteristics of the outlet water temperature, and perform gas replenishment operation on the dissolved gas tank based on the target gas-liquid ratio and the target gas replenishment time calculated based on the target gas-liquid ratio.

[0082] In one embodiment, when determining the target gas-liquid ratio based on the fluctuation characteristic index of the outlet water temperature, the fluctuation characteristic index of the outlet water temperature is obtained, wherein the fluctuation characteristic index includes the fluctuation amplitude corresponding to the outlet water temperature; the fluctuation amplitude is compared with a preset fluctuation amplitude constraint threshold, and a first gas-liquid ratio candidate set that meets the fluctuation amplitude constraint is selected from a preset gas-liquid ratio set; the predicted bubble water running time corresponding to each first candidate gas-liquid ratio in the first gas-liquid ratio candidate set is compared with the preset bubble water running time constraint threshold, and a second gas-liquid ratio that meets the bubble water running time constraint is selected from the first gas-liquid ratio candidate set. Candidate set; Obtain the actual fluctuation characteristic index corresponding to each candidate gas-liquid ratio in the second gas-liquid ratio candidate set pre-stored under standard test environment, and determine the optimal gas-liquid ratio under standard test environment; Compare the operating parameters with the standard operating parameters corresponding to the standard test environment, and based on the obtained parameter comparison results, correct the optimal gas-liquid ratio to obtain the target gas-liquid ratio; wherein, the target water level of the dissolved air tank corresponding to the target gas-liquid ratio is between the preset maximum water level and the preset minimum water level, the preset maximum water level is determined by the fluctuation amplitude constraint threshold, and the preset minimum water level is determined by the bubble water endurance constraint threshold.

[0083] Specifically, the fluctuation range of the outlet water temperature refers to the outlet water temperature of the dissolved air tank under the scenario of water outage and restart. The maximum deviation from the user-set temperature; extract the outlet water temperature values ​​corresponding to all time points from the dynamic curve corresponding to the outlet water temperature, calculate the difference between each outlet water temperature value and the set temperature, and take the maximum absolute value of the difference as the fluctuation range of the outlet water temperature.

[0084] Preferably, the fluctuation amplitude constraint threshold is set to a water outage temperature rise fluctuation of <2K, that is, a fluctuation amplitude of ≤2℃. This threshold is set based on the user's perceived comfort.

[0085] Preferably, the gas-liquid ratio set is obtained by testing the first gas-liquid ratio corresponding to different water levels and calculating the outlet water temperature under each first gas-liquid ratio. The corresponding first fluctuation amplitude forms a set of mapping relationships containing multiple sets of first gas-liquid ratios and fluctuation amplitudes.

[0086] Specifically, the fluctuation amplitude corresponding to each first gas-liquid ratio in the gas-liquid ratio set is compared with the fluctuation amplitude constraint threshold. If the fluctuation amplitude is less than the fluctuation amplitude constraint threshold, it is considered to meet the fluctuation amplitude constraint, and the first gas-liquid ratio corresponding to the fluctuation amplitude is retained. All retained first gas-liquid ratios are integrated to obtain the first gas-liquid ratio candidate set.

[0087] Specifically, when obtaining the predicted bubble water run-through time corresponding to each first candidate gas-liquid ratio in the first gas-liquid ratio candidate set, for each first candidate gas-liquid ratio in the first candidate set, the corresponding predicted bubble water run-through time is derived based on the air ratio, the rated speed of the air pump / water pump, and the real-time water flow rate in the first candidate gas-liquid ratio. Among these factors, the higher the air ratio, the lower the water level, the more dissolved air, and the longer the bubble water run-through time. The calculation formula for the predicted bubble water run-through time is: Predicted bubble water run-through time = (air volume in the tank ÷ air volume required for bubble generation per unit time), or it can be converted by accumulating available bubble water flow rate ÷ real-time water flow rate.

[0088] Specifically, the sparkling water runtime constraint threshold is set to a cumulative usable flow rate of ≥20L or a runtime of ≥2.5 minutes. This sparkling water runtime constraint threshold is set based on the typical water consumption of a user's single shower.

[0089] Specifically, the predicted bubble water driving time corresponding to each first candidate gas-liquid ratio in the first gas-liquid ratio candidate set is compared with the bubble water driving time constraint threshold. If the predicted bubble water driving time is greater than the bubble water driving time constraint threshold, it is determined that the bubble water driving time constraint is met, and the current first candidate gas-liquid ratio is retained. All retained first candidate gas-liquid ratios are integrated to obtain the second gas-liquid ratio candidate set.

[0090] Specifically, the standard test environment parameters are: standard water flow rate of 8L / min, standard inlet water temperature of 20℃, and standard set temperature of 42℃. This environment simulates a typical household water usage scenario to eliminate the interference of different operating conditions on the test results.

[0091] Specifically, under a standard testing environment, the gas-liquid ratio of each candidate in the second candidate set is measured. The actual fluctuation range and actual bubble water runtime corresponding to each candidate gas-liquid ratio are recorded. The candidate gas-liquid ratio with the smallest actual fluctuation range and the actual bubble water runtime closest to or exceeding the threshold is selected as the optimal gas-liquid ratio under the standard testing environment. For example, when the water level is 45%, the actual fluctuation range is 1.5℃ and the actual runtime is 2.8 minutes; when the water level is 50%, the actual fluctuation range is 1.8℃ and the actual runtime is 3 minutes. The fluctuation at the water level of 45% is smaller (1.5℃ < 1.8℃) and the runtime meets the standard (2.8 minutes ≥ 2.5 minutes). Therefore, it is determined as the optimal gas-liquid ratio under the standard testing environment.

[0092] Specifically, when comparing the operating parameters with the standard operating parameters corresponding to the standard test environment, if the inlet water temperature is higher than the standard inlet water temperature, it indicates a reduced heat load demand. The water proportion in the gas-liquid ratio can be appropriately reduced, such as from 45% to 40%, and the air volume increased to improve endurance. If the water flow rate is lower than the standard water flow rate, it indicates a decrease in the amount of water heated per unit time and an increased heat capacity demand. The water proportion needs to be appropriately increased, such as from 45% to 50%, to increase the dissolved air tank's heat capacity and suppress fluctuations. The corrected gas-liquid ratio needs to be recalculated to determine the water temperature. The fluctuation range and the continuous operation time of the bubble water are controlled to ensure that both indicators meet the constraints, and finally the target gas-liquid ratio that is adapted to the actual working conditions is obtained.

[0093] Specifically, the preset maximum water level is determined by the bubble water endurance constraint threshold. This is because when the water level is too high, the amount of air in the dissolved air tank is insufficient, and the bubble water endurance will be less than 2.5 minutes. Therefore, the maximum water level needs to be controlled at the critical value where the endurance just meets the standard to prevent the endurance from being too high.

[0094] Specifically, the preset minimum water level is determined by a fluctuation amplitude constraint threshold. This is because when the water level is too low, the dissolved air tank's heat capacity is insufficient, resulting in a lower outlet water temperature. The temperature fluctuation range can exceed 2°C, so the minimum water level needs to be controlled at the critical value where the fluctuation range just meets the standard, to prevent the water level from being too low and causing the fluctuation range to exceed the standard.

[0095] Specifically, the target water level corresponding to the target gas-liquid ratio should be between the preset maximum water level and the preset minimum water level to ensure that the core requirements of constant temperature stability and sufficient battery life are met at the same time.

[0096] In one embodiment, when calculating the target gas replenishment time based on the target gas-liquid ratio, the target water level of the dissolved air tank corresponding to the target gas-liquid ratio is obtained, and the current water level of the dissolved air tank is obtained. The water level difference between the target water level and the current water level is calculated, and the required gas replenishment amount of the dissolved air tank is determined based on the water level difference. The rated speed of the air pump or water pump in the water heater is obtained, and the target gas replenishment time is calculated based on the required gas replenishment amount and the rated speed.

[0097] Specifically, the target water level is a direct reflection of the target gas-liquid ratio. It is the water level in the dissolved air tank corresponding to the water percentage in the target gas-liquid ratio. For example, if the water percentage is 50% and the dissolved air tank volume is 5L, then the target water level = 5L × 50% = 2.5L.

[0098] Specifically, the current water level is the actual water level before the dissolved air tank is replenished with gas, which can be monitored in real time directly through a water level sensor, such as a level gauge installed on the side wall of the dissolved air tank.

[0099] Specifically, since the volume of the dissolved air tank is fixed, the space inside the tank is occupied by both water and air volumes. Therefore, the water level difference = the change in water volume = the change in air volume (air replenishment). For example, if the volume of the dissolved air tank is 5L and the water level difference is 0.5L, it means that 0.5L of water volume needs to be reduced and 0.5L of air volume needs to be increased. That is, the required air replenishment is 0.5L. The air pump needs to inject 0.5L of air, or the water pump needs to discharge 0.5L of water.

[0100] Specifically, when calculating the target replenishment time based on the required replenishment volume and the rated rate, the required replenishment volume is divided by the rated rate to obtain the target replenishment time, that is, target replenishment time = required replenishment volume ÷ rated rate.

[0101] In one embodiment, if it is detected that the user is not using the hot sparkling water function, the target refill time is set to the default refill time.

[0102] In one embodiment, the water heater is further equipped with a shut-off valve, an air pump, and a water pump. After determining the target gas replenishment time, the shut-off valve is closed, the air pump / water pump is turned on to replenish the dissolved gas tank, and a timer is started during gas replenishment until the target gas replenishment time is reached. Then, the air pump / water pump is turned off and the shut-off valve is opened to open the water circuit in the water heater.

[0103] In one embodiment, after the gas is replenished, the water flow signal in the water circuit is re-detected. If the water flow signal is detected, it is re-detected whether the user is using the hot sparkling water function. If so, the combustion module in the water heater is turned on and enters the normal combustion mode, so the sparkling water can be used normally. If the user is not using the hot sparkling water function, the combustion module in the water heater is not turned on, and the sparkling water can be used normally directly. During use, the cumulative usage time of the sparkling water or the cumulative water flow of the sparkling water is recorded according to the current water flow rate until the user turns off the water and the water flow signal can no longer be detected. Then the water heater is turned off and enters the standby state.

[0104] Example 2, see Figure 2 , Figure 2 This is a structural schematic diagram of one embodiment of a bubble water water heater provided in this application, as shown below. Figure 2 As shown, the bubble water water heater includes a main controller 1, wherein the main controller 1 includes a gas replenishment detection module 110, an outlet water temperature determination module 120, and a gas replenishment module 130.

[0105] The gas replenishment detection module 110 is used to determine whether a preset gas replenishment trigger condition is met when a water flow signal is detected. If the gas replenishment trigger condition is met, the operating parameters of the water heater are acquired in real time.

[0106] The outlet water temperature determination module 120 is used to construct a water outage and restart temperature fluctuation curve based on the operating parameters, and to calculate the outlet water temperature of the dissolved air tank based on the water outage and restart temperature fluctuation curve.

[0107] The gas replenishment module 130 is used to determine the target gas-liquid ratio based on the fluctuation characteristics of the outlet water temperature, and to perform gas replenishment operation on the dissolved gas tank based on the target gas-liquid ratio and the target gas replenishment time calculated based on the target gas-liquid ratio.

[0108] In one embodiment, the gas replenishment module 130 is used to calculate a target gas replenishment time based on the target gas-liquid ratio, specifically including: obtaining the target water level of the dissolved air tank corresponding to the target gas-liquid ratio, obtaining the current water level of the dissolved air tank, calculating the water level difference between the target water level and the current water level, determining the required gas replenishment amount of the dissolved air tank based on the water level difference; obtaining the rated speed of the air pump or water pump in the water heater, and calculating the target gas replenishment time based on the required gas replenishment amount and the rated speed.

[0109] In one embodiment, the gas replenishment detection module 110 is used to determine whether a preset gas replenishment trigger condition is met. Specifically, it includes: if the current water usage is the first water usage after power-on, determining whether the user uses the sparkling water function and whether the sparkling water function is a hot sparkling water function; if so, determining that the preset gas replenishment trigger condition is met; or, if the current water usage is the first water usage after power-on, determining whether the user uses the sparkling water function; if not, obtaining the cumulative usage time of the sparkling water, determining whether the cumulative usage time of the sparkling water is greater than a preset maximum value for the cumulative usage time of the sparkling water; if so, setting the cumulative usage time of the sparkling water... The system performs a zeroing process and determines whether the user is using the hot sparkling water function. If so, it confirms that the preset gas replenishment trigger condition is met. Alternatively, if the current water usage is the first water usage after powering on, it determines whether the user is using the sparkling water function. If not, it obtains the cumulative sparkling water flow rate and determines whether the cumulative sparkling water flow rate is greater than the preset maximum cumulative sparkling water flow rate. If so, it performs a zeroing process on the cumulative sparkling water flow rate and determines whether the user is using the hot sparkling water function. If so, it confirms that the preset gas replenishment trigger condition is met. The preset gas replenishment trigger condition is the hot sparkling water function gas replenishment trigger condition.

[0110] In one embodiment, the outlet water temperature determination module 120 is used to construct a water outage and restart temperature fluctuation curve based on the operating parameters, and to calculate the outlet water temperature of the dissolved air tank based on the water outage and restart temperature fluctuation curve. Specifically, this includes: generating a heating section temperature curve based on the operating parameters, calculating the heat load based on the operating parameters, and then establishing a water outage temperature overshoot curve based on the heat load and a preset current set temperature and post-purge air velocity; superimposing the heating section temperature curve and the water outage temperature overshoot curve to obtain the water outage and restart temperature fluctuation curve; and calculating the outlet water temperature of the dissolved air tank based on the water outage and restart temperature fluctuation curve.

[0111] In one embodiment, the outlet water temperature determination module 120 is used to calculate the outlet water temperature of the dissolved air tank based on the water interruption and restart temperature fluctuation curve. Specifically, it includes: obtaining the real-time dissolved air tank parameters corresponding to the dissolved air tank, wherein the real-time dissolved air tank parameters include the initial water temperature, dissolved air tank volume, initial water volume of the dissolved air tank, real-time water flow rate, and mixing coefficient; and substituting the water interruption and restart temperature fluctuation curve and the real-time dissolved air tank parameters into a preset dissolved air tank outlet water temperature calculation formula to obtain the outlet water temperature of the dissolved air tank.

[0112] In one embodiment, the air replenishment module 130 is used to determine the target gas-liquid ratio based on the fluctuation characteristic index of the outlet water temperature. Specifically, this includes: acquiring the fluctuation characteristic index of the outlet water temperature, wherein the fluctuation characteristic index includes the fluctuation amplitude corresponding to the outlet water temperature; comparing the fluctuation amplitude with a preset fluctuation amplitude constraint threshold, and selecting a first gas-liquid ratio candidate set that satisfies the fluctuation amplitude constraint from a preset gas-liquid ratio set; comparing the predicted bubble water runtime corresponding to each first candidate gas-liquid ratio in the first gas-liquid ratio candidate set with the preset bubble water runtime constraint threshold, and selecting those that satisfy the bubble water runtime constraint from the first gas-liquid ratio candidate set. The second gas-liquid ratio candidate set is obtained; the actual fluctuation characteristic index corresponding to each candidate gas-liquid ratio in the second gas-liquid ratio candidate set pre-stored under the standard test environment is obtained, and the optimal gas-liquid ratio under the standard test environment is determined; the operating parameters are compared with the standard operating parameters corresponding to the standard test environment, and the optimal gas-liquid ratio is corrected based on the obtained parameter comparison results to obtain the target gas-liquid ratio; wherein, the target water level of the dissolved air tank corresponding to the target gas-liquid ratio is between the preset maximum water level and the preset minimum water level, the preset maximum water level is determined by the fluctuation amplitude constraint threshold, and the preset minimum water level is determined by the bubble water endurance constraint threshold.

[0113] In one embodiment, the aerated water water heater provided in this application further includes: an aerated tank 2, an air pump 3, a water pump 4, a water flow sensor 5, and a water pressure sensor 6.

[0114] In one embodiment, the main controller 1 of the water heater is connected to the water pump 4, the water flow sensor 5, and the water pressure sensor 6 respectively; wherein, the water pressure sensor 6 is disposed inside the dissolved air tank 2, and the air pump 3 is connected to the passage into the dissolved air tank 2.

[0115] In one embodiment, the aerated water water heater provided in this application further includes: a shut-off valve 7, a one-way valve 8, a water heater heat exchange module 9, a combustion module 10, a water heater inlet 11, a water heater outlet 12, a water heater air inlet 13, and a water heater body 14; Figure 3 As shown, Figure 3 This is another structural schematic diagram of an embodiment of a bubble water water heater provided in this application; as shown Figure 4 As shown, Figure 4 This is another structural schematic diagram of an embodiment of a bubble water water heater provided in this application.

[0116] Specifically, the water inlet 11 is the entrance for cold water to enter the water heater, marking the starting point of the water system. The water flow sensor 5 is installed between the water inlet 11 and the heat exchange module 9 to collect the inlet water flow in real time, providing data for heat load calculation and gas-liquid ratio adjustment. The heat exchange module 9 is used to exchange cold water with combustion heat, heating the cold water to the target temperature. The dissolved air tank 2 is the core bubble generating component, generating micro-nano bubbles by dissolving air, while using the water inside the tank to buffer water temperature fluctuations, making it a key carrier for balancing constant temperature and continuous operation. The water outlet 12 is the outlet for heated hot water containing micro-nano bubbles, directly connected to the user's water supply.

[0117] Specifically, the functions of air pump 3 and water pump 4 are equivalent. Air pump 3 increases the gas ratio in dissolved air tank 2 by injecting air, while water pump 4 indirectly increases the gas ratio by draining water. Both are used to accurately control the gas-liquid ratio. One-way valve 8 is installed between air pump 3 and dissolved air tank 2 to prevent water in dissolved air tank 2 from flowing back into the air pump, ensuring the safety of the air path and the efficiency of air replenishment. Shut-off valve 7 is installed on the water inlet / outlet side of dissolved air tank 2. It is closed during air replenishment to isolate the water path and ensure that the gas-liquid ratio adjustment is not affected by water flow. It is opened after air replenishment to restore water supply. Water pressure sensor 6 is installed on dissolved air tank 2 to monitor the water pressure in dissolved air tank 2 in real time, providing a basis for correcting the air replenishment amount and adjusting the gas-liquid ratio.

[0118] Specifically, the combustion module 10 generates heat through gas combustion to provide heating energy for the water heater heat exchange module 9, and its operation is controlled by the water heater main controller 1; the water heater air inlet 13 is the entrance for gas to enter the combustion module to ensure the gas supply required for combustion.

[0119] Specifically, the water pressure sensor 6 is installed on the dissolved air tank 2 to monitor the water pressure inside the dissolved air tank 2 in real time, providing a basis for correcting the amount of gas replenishment and adjusting the gas-liquid ratio.

[0120] Specifically, the main body 14 of the water heater is an outer shell and bracket that integrates all the above-mentioned functional modules, ensuring that each component is installed firmly and arranged reasonably, while also providing protection and heat dissipation.

[0121] Specifically, the main controller 1 of the gas water heater is used to receive operating parameters collected by the water flow sensor 5 and the water pressure sensor 6, and to execute logic such as temperature curve construction, gas-liquid ratio calculation, and gas replenishment time control. At the same time, it links the combustion module 10, the gas pump 3 / water pump 4, and the shut-off valve 7 to operate.

[0122] Specifically, the air pump 3 / water pump 4 is linked to the shut-off valve 7. The valve is closed when replenishing air and opened after replenishing air, ensuring that the dissolved gas tank 2 adjusts the gas-liquid ratio in a closed environment and avoids ratio deviation caused by water flow interference.

[0123] Specifically, the dissolved air tank 2 is connected in series between the water heater heat exchange module 9 and the water heater outlet 12. This design allows the fluctuating water temperature output by the water heater heat exchange module 9 to be mixed with the stable water in the dissolved air tank 2 before being delivered to the user, effectively buffering the overrush and low temperature period in the scenario of water outage and restart.

[0124] The water temperature control device for the aforementioned aerated water water heater can implement the water temperature control method for the aerated water water heater described in the above method embodiments. The options described in the above method embodiments are also applicable to this embodiment, and will not be detailed here.

[0125] like Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of a computer device provided in this application; it includes a processor 111, a communication interface 112, a memory 113 and a communication bus 114, wherein the processor 111, the communication interface 112 and the memory 113 communicate with each other through the communication bus 114, and the memory 113 is used to store computer programs.

[0126] In one embodiment of this application, the processor 111, when executing the program stored in the memory 113, implements the water temperature control method for the bubble water water heater provided in any of the aforementioned method embodiments.

[0127] It will be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program may be stored in a storage medium, which is a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the process steps of the embodiments of the above methods.

[0128] Therefore, this application embodiment also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the water temperature control method for a bubble water water heater as provided in any of the foregoing method embodiments.

[0129] The storage medium is a physical, non-transient storage medium, such as a USB flash drive, external hard drive, read-only memory (ROM), magnetic disk, or optical disk, or any other physical storage medium capable of storing program code. The computer-readable storage medium can be non-volatile or volatile.

[0130] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0131] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0132] The steps in the methods of this application embodiment can be adjusted, merged, or deleted according to actual needs. The units in the apparatus of this application embodiment can be merged, divided, or deleted according to actual needs. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0133] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a terminal, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0134] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0135] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0136] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A water temperature control method for a bubble water heating appliance, characterized by, The bubble water heat water heater comprises a dissolved air tank, and the method comprises the following steps: When a water flow signal is detected, it is determined whether a preset air supplement triggering condition is met, and if the air supplement triggering condition is met, real-time operation parameters of the water heater are collected; Based on the operation parameters, a water stop and restart temperature fluctuation curve is constructed, and based on the water stop and restart temperature fluctuation curve, the outlet water temperature of the dissolved air tank is calculated; According to the fluctuation characteristic index of the outlet water temperature, a target gas-liquid ratio is determined, and a target air supplement time length calculated based on the target gas-liquid ratio is used to perform air supplement operation on the dissolved air tank.

2. The water temperature control method of a bubble water heater according to claim 1, wherein The target air supplement time length calculated based on the target gas-liquid ratio specifically comprises: A target water level of the dissolved air tank corresponding to the target gas-liquid ratio is obtained, and a current water level of the dissolved air tank is obtained, a water level difference between the target water level and the current water level is calculated, and based on the water level difference, a required air supplement amount of the dissolved air tank is determined; A rated speed of a gas pump or a water pump in the water heater is obtained, and based on the required air supplement amount and the rated speed, the target air supplement time length is calculated.

3. The water temperature control method of a bubble water heater according to claim 1, wherein Determining whether a preset air supplement triggering condition is met specifically comprises: If the current water use is the first water use after starting, it is determined whether the user uses a bubble water function, and whether the bubble water function is a hot bubble water function, if yes, it is determined that the preset air supplement triggering condition is met at present; Or, If the current water use is the first water use after starting, it is determined whether the user uses the bubble water function, if no, a bubble water cumulative use time is obtained, it is determined whether the bubble water cumulative use time is greater than a preset maximum bubble water cumulative use time, if yes, the bubble water cumulative use time is cleared, and it is determined whether the user uses a hot bubble water function, if yes, it is determined that the preset air supplement triggering condition is met at present; Or, If the current water use is the first water use after starting, it is determined whether the user uses the bubble water function, if no, a bubble water cumulative water flow is obtained, it is determined whether the bubble water cumulative water flow is greater than a preset maximum bubble water cumulative water flow, if yes, the bubble water cumulative water flow is cleared, and it is determined whether the user uses the hot bubble water function, if yes, it is determined that the preset air supplement triggering condition is met at present; The preset air supplement triggering condition is a hot bubble water function air supplement triggering condition.

4. The water temperature control method of a bubble water heater according to claim 1, wherein Based on the operation parameters, a water stop and restart temperature fluctuation curve is constructed, and based on the water stop and restart temperature fluctuation curve, the outlet water temperature of the dissolved air tank is calculated, specifically comprising: Based on the operation parameters, a heating section temperature curve is generated, a heat load is calculated based on the operation parameters, and a water stop temperature overshoot curve is established based on the heat load, a preset current set temperature and a post-cleaning air speed; The heating section temperature curve and the water stop temperature overshoot curve are superimposed to obtain a water stop and restart temperature fluctuation curve; Based on the water stop and restart temperature fluctuation curve, the outlet water temperature of the dissolved air tank is calculated.

5. The water temperature control method of a bubble water heater according to claim 4, wherein Based on the water stop and restart temperature fluctuation curve, the outlet water temperature of the dissolved air tank is calculated, specifically comprising: acquire real-time dissolved air tank parameters corresponding to the dissolved air tank, wherein the real-time dissolved air tank parameters include an initial water temperature, a dissolved air tank volume, a dissolved air tank initial water volume, a real-time water flow, and a water mixing coefficient; substitute the water stop and restart temperature fluctuation curve and the real-time dissolved air tank parameters into a preset dissolved air tank outlet water temperature calculation formula to obtain the outlet water temperature of the dissolved air tank.

6. The water temperature control method of a bubble water heater according to claim 1, wherein determine a target gas-liquid ratio according to a fluctuation characteristic index of the outlet water temperature, specifically including: acquire the fluctuation characteristic index of the outlet water temperature, wherein the fluctuation characteristic index includes a fluctuation amplitude corresponding to the outlet water temperature; compare the fluctuation amplitude with a preset fluctuation amplitude constraint threshold, and select a first gas-liquid ratio candidate set that meets the fluctuation amplitude constraint from a preset gas-liquid ratio set; compare a predicted bubble water endurance time corresponding to each first candidate gas-liquid ratio in the first gas-liquid ratio candidate set with the preset bubble water endurance constraint threshold, and select a second gas-liquid ratio candidate set that meets the bubble water endurance constraint from the first gas-liquid ratio candidate set; acquire actual fluctuation characteristic indexes corresponding to each candidate gas-liquid ratio in the second gas-liquid ratio candidate set pre-stored under a standard test environment, and determine an optimal gas-liquid ratio under the standard test environment; compare the operating parameters with standard operating parameters corresponding to the standard test environment, and correct the optimal gas-liquid ratio based on the acquired parameter comparison result to obtain a target gas-liquid ratio; wherein a target water level of the dissolved air tank corresponding to the target gas-liquid ratio is between a preset highest water level and a preset lowest water level, the preset highest water level is determined by the fluctuation amplitude constraint threshold, and the preset lowest water level is determined by the bubble water endurance constraint threshold.

7. A bubble water heating appliance characterized by, including: a water heater main controller, wherein the water heater main controller includes a gas supplement detection module, an outlet water temperature determination module, and a gas supplement module; wherein the gas supplement detection module is configured to determine whether a preset gas supplement trigger condition is met when a water flow signal is detected, and if the gas supplement trigger condition is met, to acquire operating parameters of the water heater in real time; the outlet water temperature determination module is configured to construct a water stop and restart temperature fluctuation curve based on the operating parameters, and calculate an outlet water temperature of the dissolved air tank based on the water stop and restart temperature fluctuation curve; the gas supplement module is configured to determine a target gas-liquid ratio according to a fluctuation characteristic index of the outlet water temperature, and perform a gas supplement operation on the dissolved air tank based on a target gas supplement time length calculated based on the target gas-liquid ratio.

8. A bubble water heater as claimed in claim 7, wherein, further including: a dissolved air tank, a gas pump, a water pump, a water flow sensor, and a water pressure sensor; wherein the water heater main controller is connected to the water pump, the water flow sensor, and the water pressure sensor respectively; the water pressure sensor is arranged inside the dissolved air tank, and the gas pump is connected to a passage leading into the dissolved air tank.

9. A computer device, comprising: The computer device includes a memory and a processor, the memory has a computer program stored thereon, and the processor implements the method of any one of claims 1-6 when executing the computer program.

10. A computer-readable storage medium, characterized in that, The storage medium stores a computer program which, when executed by the processor, can implement the method of any one of claims 1-6.

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