Control Method, System, Water Heater and Storage Medium of Water Heater

Abstract

The present disclosure is a control method, system, water heater and storage medium for a water heater. The control method includes: if the water heater goes out during use, it enters an abnormal flameout state and performs an ignition action; the ignition firepower value of the most recent successful ignition is used as a temporary maximum firepower value; the combustion firepower value of the water heater is gradually reduced from the temporary maximum firepower value as the starting point until a temporary minimum firepower value is determined; the temporary minimum firepower value is the minimum firepower value to ensure that the fire does not go out; the firepower value range between the temporary maximum firepower value and the temporary minimum firepower value is used as a first temporary adjustment range for the combustion firepower value; when the firepower demand value is within the first temporary adjustment range, the combustion firepower value is controlled to be adjusted within the first temporary adjustment range. The first temporary adjustment range disclosed in the present disclosure can ensure that the combustion firepower value of the water heater will not go out midway when adjusted within this range, thereby ensuring a constant temperature for the water heater and a good user experience.

Description

Technical Field

[0001] The present disclosure relates to the field of smart home appliances, and in particular to a control method and system for a water heater, a water heater, and a storage medium. Background Art

[0002] To maintain a stable outlet water temperature, water heaters must adjust the combustion power within a certain range. This range is usually set at the factory.

[0003] However, water heaters can sometimes stall mid-use. The typical solution is to immediately shut down the heater upon detecting a stall, display a warning, and then restart the system. However, because the combustion power level is still controlled within the original power control range, the same stalling issue can occur repeatedly, creating a negative user experience. Summary of the Invention

[0004] The problem to be solved by the present disclosure is to overcome the defect of repeated flameout of water heaters during use in the prior art, and to provide a water heater control method, system, water heater and storage medium.

[0005] The present disclosure solves the above technical problems through the following technical solutions:

[0006] The present disclosure provides a control method for a water heater, the control method comprising:

[0007] If the water heater goes out during use, it enters an abnormal flameout state and performs an ignition action;

[0008] The ignition power value of the most recent successful ignition is used as the temporary maximum fire power value;

[0009] gradually reducing the combustion power value of the water heater from the temporary maximum power value until a temporary minimum power value is determined; the temporary minimum power value is the minimum power value to ensure that the water heater does not go out;

[0010] The firepower value range between the temporary maximum firepower value and the temporary minimum firepower value is used as the first temporary adjustment range of the combustion firepower value;

[0011] When the firepower demand value is within the first temporary adjustment range, the combustion firepower value is controlled to be adjusted within the first temporary adjustment range.

[0012] Preferably, determining the temporary minimum firepower value includes:

[0013] If the flameout does not occur during the process of the combustion firepower value gradually decreasing to the minimum firepower value, the minimum firepower value is used as the temporary minimum firepower value;

[0014] If flameout occurs during the gradual decrease of the combustion power value, and the combustion power value has not decreased to the minimum power value, the combustion power value before flameout is used as the temporary minimum power value.

[0015] Preferably, the control method further includes:

[0016] If the fire power demand value is greater than the ignition fire power value, the combustion fire power value of the water heater is gradually increased starting from the ignition fire power value until a temporary maximum fire power value is determined; the temporary maximum fire power value is the maximum fire power value that ensures that the water heater does not go out;

[0017] The firepower value range between the temporary maximum firepower value and the temporary minimum firepower value is used as the second temporary adjustment range of the combustion firepower value;

[0018] When the firepower demand value is within the second temporary adjustment range, the combustion firepower value is controlled to be adjusted within the second temporary adjustment range.

[0019] Preferably, determining the temporary maximum firepower value includes:

[0020] If the combustion firepower value increases to the preset maximum firepower value without flameout, the preset maximum firepower value is used as the temporary maximum firepower value;

[0021] If flameout occurs during the increase of the combustion firepower value, and the combustion firepower value has not increased to the preset maximum firepower value, the combustion firepower value before flameout is used as the temporary maximum firepower value.

[0022] Preferably, the control method further includes:

[0023] If the difference between the maximum value of the first temporary adjustment range and the maximum value of the preset adjustment range is less than a first threshold value, and the difference between the minimum value of the first temporary adjustment range and the minimum value of the preset adjustment range is less than a second threshold value, the combustion power value is adjusted according to the preset adjustment range, and the abnormal flameout state is exited; the preset adjustment range is the range between the preset maximum power value and the minimum power value;

[0024] If the difference between the maximum value of the second temporary adjustment range and the maximum value of the preset adjustment range is less than the first threshold, and the difference between the minimum value of the second temporary adjustment range and the minimum value of the preset adjustment range is less than the second threshold, the combustion firepower value is adjusted according to the preset adjustment range, and the abnormal flameout state is exited; the preset adjustment range is the range between the preset maximum firepower value and the minimum firepower value.

[0025] Preferably, the control method further includes:

[0026] If the water outage time interval exceeds the preset time threshold, the abnormal flameout state is exited.

[0027] The present disclosure also provides a control system for a water heater, the control system comprising:

[0028] An ignition module, configured to enter an abnormal flameout state and perform an ignition action if the water heater goes out of flame during use;

[0029] A setting module is used to set the ignition power value of the most recent successful ignition as the temporary maximum power value;

[0030] a first determining module, configured to gradually reduce the combustion power value of the water heater from the temporary maximum power value as a starting point until a temporary minimum power value is determined; the temporary minimum power value is the minimum power value to ensure that the water heater does not go out;

[0031] The first adjustment module is used to use the firepower value range between the temporary maximum firepower value and the temporary minimum firepower value as the first temporary adjustment range of the combustion firepower value; when the firepower demand value is within the first temporary adjustment range, the combustion firepower value is controlled to be adjusted within the first temporary adjustment range.

[0032] Preferably, the first determining module is further configured to include:

[0033] If the flameout does not occur during the process of the combustion firepower value gradually decreasing to the minimum firepower value, the minimum firepower value is used as the temporary minimum firepower value;

[0034] If flameout occurs during the gradual decrease of the combustion power value, and the combustion power value has not decreased to the minimum power value, the combustion power value before flameout is used as the temporary minimum power value.

[0035] Preferably, the control system further includes:

[0036] a second determining module configured to, if the fire power demand value is greater than the ignition fire power value, gradually increase the combustion fire power value of the water heater starting from the ignition fire power value until a temporary maximum fire power value is determined; the temporary maximum fire power value is a maximum fire power value that ensures that the water heater does not go out;

[0037] The second determination module is used to use the firepower value range between the temporary maximum firepower value and the temporary minimum firepower value as the second temporary adjustment range of the combustion firepower value; when the firepower demand value is within the second temporary adjustment range, the combustion firepower value is controlled to be adjusted within the second temporary adjustment range.

[0038] Preferably, the second determining module is configured to include:

[0039] If the combustion firepower value increases to the preset maximum firepower value without flameout, the preset maximum firepower value is used as the temporary maximum firepower value;

[0040] If flameout occurs during the increase of the combustion firepower value, and the combustion firepower value has not increased to the preset maximum firepower value, the combustion firepower value before flameout is used as the temporary maximum firepower value.

[0041] Preferably, the control system further comprises:

[0042] The second adjustment module is used to adjust the combustion firepower value within the preset adjustment range and exit the abnormal flameout state if the difference between the maximum value of the first temporary adjustment range and the maximum value of the preset adjustment range is less than a first threshold, and the difference between the minimum value of the first temporary adjustment range and the minimum value of the preset adjustment range is less than a second threshold; the preset adjustment range is the range between the preset maximum firepower value and the minimum firepower value.

[0043] The second adjustment module is further used to adjust the combustion firepower value within the preset adjustment range and exit the abnormal flameout state if the difference between the maximum value of the second temporary adjustment range and the maximum value of the preset adjustment range is less than a first threshold, and the difference between the minimum value of the second temporary adjustment range and the minimum value of the preset adjustment range is less than a second threshold; the preset adjustment range is the range between the preset maximum firepower value and the minimum firepower value.

[0044] Preferably, the control system further comprises:

[0045] The third regulating module is configured to exit the abnormal flameout state if the water outage time interval exceeds a preset time threshold.

[0046] The present disclosure also provides a water heater, comprising a memory, a processor, and a computer program stored in the memory and configured to run on the processor, wherein the processor implements the aforementioned water heater control method when executing the computer program.

[0047] The present disclosure also provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the aforementioned water heater control method is implemented.

[0048] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.

[0049] The positive progress of the present disclosure is that when a water heater is ignited after being turned off mid-process, the minimum power value that ensures that the water heater does not turn off is explored based on the ignition power value at the time of successful ignition. This minimum power value serves as the temporary minimum power value. Ultimately, a combustion power value adjustment range is determined based on the ignition power value and the temporary minimum power value, serving as a first temporary adjustment range. This first temporary adjustment range ensures that the combustion power value of the water heater will not turn off mid-process when adjusted within this range, thereby ensuring a constant temperature of the water heater and a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 A flow chart of a method for controlling a water heater provided by an exemplary embodiment of the present disclosure;

[0051] Figure 2 A module diagram of a control system of a water heater provided by an exemplary embodiment of the present disclosure;

[0052] Figure 3 The present invention provides a schematic structural diagram of a water heater according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0053] The present disclosure is further illustrated below by way of examples, but the present disclosure is not limited to the scope of the examples.

[0054] Example 1

[0055] This embodiment provides a control method for a water heater. Figure 1 The control method comprises the following steps:

[0056] S101. If the water heater goes out during use, it enters an abnormal outage state and performs an ignition action.

[0057] In this step, if the water heater detects that the burner has flamed out, it enters an abnormal flameout state. Upon occurrence of an abnormal flameout, a warning of the abnormal state is issued and ignition is initiated to reignite the burner flame. Optionally, flameout monitoring can be performed using a sensor needle. This step monitors whether the water heater has flamed out. If flameout occurs, an abnormal flameout warning is issued and ignition is initiated to ensure continued normal combustion.

[0058] S102: The ignition power value of the most recent successful ignition is used as a temporary maximum firepower value.

[0059] In this step, the ignition power value of a successful ignition indicates that, in theory, the water heater's burner can operate normally when the combustion power value is at that ignition power value. Therefore, the ignition power value of the most recent successful ignition is used as the temporary maximum power value. It should be understood that the temporary maximum power value is a variable and can be adjusted according to actual conditions. This step allows for the determination of a temporary maximum power value, which is the ignition power value of the most recent successful ignition, to ensure that the outlet water temperature is less likely to overheat during subsequent combustion power value adjustments.

[0060] S103, gradually reducing the combustion power value of the water heater from the temporary maximum power value until a temporary minimum power value is determined; the temporary minimum power value is the minimum power value to ensure that the water heater does not go out.

[0061] In this step, the process of adjusting the water heater's combustion power value is a gradual reduction process. Optionally, the combustion power value can be adjusted by adjusting the gas intake volume. Therefore, to achieve this gradual reduction in the combustion power value, it is necessary to control the gradual reduction of the gas intake volume, gradually reducing it by a certain amount during the reduction process. It should be understood that the reduction amount can be adjusted according to actual needs, and the method of adjusting the combustion power value is not limited to adjusting the gas intake volume. This step can achieve the purpose of exploring the lower limit of the combustion power value that ensures the water heater will not stall, with the ignition power value as the upper limit.

[0062] Among them, determining the temporary minimum firepower value includes:

[0063] S1031. If the flameout does not occur during the process of the combustion firepower value gradually decreasing to the minimum firepower value, the minimum firepower value is used as the temporary minimum firepower value.

[0064] In this step, the minimum power value is the minimum value of the adjustable range of the water heater's combustion power value. That is, the minimum power value is the lower limit of the power adjustment during the process of reducing the combustion power value, which generally depends on the process design of the water heater. If the combustion power value gradually decreases to the minimum power value and does not stall, it means that the water heater can burn normally within the range of the temporary maximum power value and the minimum power value.

[0065] S1032: If the combustion power value is turned off during the process of gradually decreasing the combustion power value, and the combustion power value has not been reduced to the minimum power value, the combustion power value before the flameout is used as the temporary minimum power value.

[0066] This step is parallel to step S1031. In this step, if the water heater goes out of service before the combustion power value is reduced to the minimum power value, the combustion power value before the flameout is at a critical value that ensures normal combustion without flameout. That is, within the range of the temporary maximum power value and the combustion power value before the flameout, the water heater can continue to burn normally without flameout.

[0067] S104. Use the firepower value range between the temporary maximum firepower value and the temporary minimum firepower value as the first temporary adjustment range of the combustion firepower value.

[0068] In this step, the first temporary adjustment range can ensure that the combustion firepower value will not be extinguished when it is adjusted within this range.

[0069] S105. When the firepower demand value is within the first temporary adjustment range, the combustion firepower value is controlled to be adjusted within the first temporary adjustment range.

[0070] This step allows the user to determine the first temporary adjustment range. When the power demand falls within this range, the combustion power value can be adjusted within this range without causing flameout. Furthermore, since the upper limit of the first temporary adjustment range is the ignition power value, this reduces the risk of excessive water temperature during combustion power adjustment, preventing a negative user experience.

[0071] Optionally, the control method further includes:

[0072] S201. If the fire power demand value is greater than the ignition fire power value, the combustion fire power value of the water heater is gradually increased starting from the ignition fire power value until a temporary maximum fire power value is determined; the temporary maximum fire power value is the maximum fire power value that ensures that the water heater does not go out.

[0073] In this step, the process of adjusting the water heater's combustion power value is a gradual increase. Optionally, the combustion power value can be adjusted by adjusting the gas intake volume. Therefore, to achieve this gradual increase in the combustion power value, it is necessary to control the gradual increase in the gas intake volume, gradually increasing it by a certain amount during the increase. It should be understood that the increase amount can be adjusted according to actual needs, and the method of adjusting the combustion power value is not limited to adjusting the gas intake volume. This step can be used to determine the upper limit of the combustion power value that ensures the water heater does not stall, using the ignition power value as the lower limit.

[0074] Among them, determining the temporary maximum firepower value includes:

[0075] S2011. If the flameout does not occur during the process of the combustion firepower value increasing to the preset maximum firepower value, the preset maximum firepower value is used as the temporary maximum firepower value.

[0076] In this step, the maximum power value is the maximum value of the adjustable range of the water heater's combustion power value. That is, the maximum power value is the upper limit of the power adjustment during the process of increasing the combustion power value, which generally depends on the process design of the water heater. If the combustion power value gradually increases to the maximum power value without flameout, it means that the water heater can burn normally within the range of the ignition power value and the maximum power value.

[0077] S2012: If the combustion firepower value is turned off during the process of increasing the combustion firepower value, and the combustion firepower value has not increased to the preset maximum firepower value, the combustion firepower value before the flameout is used as the temporary maximum firepower value.

[0078] This step is parallel to S2011. In this step, if the water heater stalls before reaching the maximum power value while the combustion power value gradually increases to the maximum power value, it indicates that the combustion power value before the flameout is at a critical value that ensures normal combustion without flameout. In other words, within the range of the ignition power value and the combustion power value before the flameout, the water heater can burn normally without flameout.

[0079] S202: Use the firepower value range between the temporary maximum firepower value and the temporary minimum firepower value as the second temporary adjustment range of the combustion firepower value.

[0080] In this step, the second temporary adjustment range can ensure that the combustion firepower value will not be extinguished when it is adjusted within this range.

[0081] S203: When the firepower demand value is within the second temporary adjustment range, the combustion firepower value is controlled to be adjusted within the second temporary adjustment range.

[0082] This step can determine the second temporary adjustment range. When the firepower demand value is within the second temporary adjustment range, the combustion firepower value can be adjusted within the range, and the flameout will not occur during the adjustment process.

[0083] Optionally, the control method further includes:

[0084] S301: If the difference between the maximum value of the first temporary adjustment range and the maximum value of the preset adjustment range is less than a first threshold, and the difference between the minimum value of the first temporary adjustment range and the minimum value of the preset adjustment range is less than a second threshold, then adjusting the combustion power value within the preset adjustment range and exiting the abnormal flameout state. The preset adjustment range is a range between a preset maximum power value and a preset minimum power value.

[0085] In this step, the difference between the two endpoints of the first temporary adjustment range and the preset adjustment range is determined to determine the closeness of the two ranges. It should be understood that the first threshold and the second threshold can be adjusted according to actual needs.

[0086] S302: If the difference between the maximum value of the second temporary adjustment range and the maximum value of the preset adjustment range is less than a first threshold, and the difference between the minimum value of the second temporary adjustment range and the minimum value of the preset adjustment range is less than a second threshold, the combustion power value is adjusted within the preset adjustment range, and the abnormal flameout state is exited. The preset adjustment range is a range between a preset maximum power value and a preset minimum power value.

[0087] This step is parallel to step S301. In this step, the difference between the two endpoints of the second temporary adjustment range and the preset adjustment range is determined to determine the degree of proximity between the two ranges. It should be understood that the first threshold and the second threshold can be adjusted according to actual needs.

[0088] Optionally, the control method further includes:

[0089] S401: If the water outage time interval exceeds the preset time threshold, exit the abnormal flameout state.

[0090] In this step, the water outage interval is the time interval since the last hot water use ended. One of the causes of flameout is unstable gas quality, such as unstable gas concentration. After a period of time, the unstable gas in the pipeline is consumed by other devices or during the last use of the water heater, and the gas quality returns to a stable state. It should be understood that the preset time threshold can be adjusted according to actual needs.

[0091] The above steps can determine the first temporary adjustment range or the second temporary adjustment range according to the user's fire power demand value. The flameout will not occur during the adjustment of the combustion fire power value, ensuring the constant temperature of the water heater and the user's good usage experience.

[0092] Example 2

[0093] This embodiment provides a control system for a water heater. The control system for the water heater corresponds to a control method for the water heater. Figure 2 The control system includes:

[0094] The ignition module 21 is used to enter the abnormal flameout state and perform ignition if the water heater is flameout during use;

[0095] A setting module 22 is used to set the ignition power value of the most recent successful ignition as a temporary maximum power value;

[0096] The first determining module 23 is configured to gradually reduce the combustion power value of the water heater from the temporary maximum power value until a temporary minimum power value is determined; the temporary minimum power value is the minimum power value that ensures that the water heater does not go out;

[0097] The first adjustment module 24 is used to use the firepower value range between the temporary maximum firepower value and the temporary minimum firepower value as the first temporary adjustment range of the combustion firepower value; when the firepower demand value is within the first temporary adjustment range, the combustion firepower value is controlled to be adjusted within the first temporary adjustment range.

[0098] Optionally, the first determining module is further configured to include:

[0099] If the flameout does not occur during the process of gradually reducing the combustion firepower value to the minimum firepower value, the minimum firepower value will be used as the temporary minimum firepower value;

[0100] If the combustion power value is gradually reduced and the flameout occurs, and the combustion power value has not been reduced to the minimum power value, the combustion power value before the flameout will be used as the temporary minimum power value.

[0101] Optionally, the control system further includes:

[0102] The second determining module is configured to gradually increase the combustion power value of the water heater starting from the ignition power value until a temporary maximum power value is determined if the power demand value is greater than the ignition power value; the temporary maximum power value is the maximum power value that ensures the water heater does not go out;

[0103] The second determination module is used to use the firepower value range between the temporary maximum firepower value and the temporary minimum firepower value as the second temporary adjustment range of the combustion firepower value; when the firepower demand value is within the second temporary adjustment range, the combustion firepower value is controlled to be adjusted within the second temporary adjustment range.

[0104] Optionally, the second determining module is configured to include:

[0105] If the combustion firepower value increases to the preset maximum firepower value without flameout, the preset maximum firepower value will be used as the temporary maximum firepower value;

[0106] If the combustion firepower value is turned off during the increase process, and the combustion firepower value has not increased to the preset maximum firepower value, the combustion firepower value before the flameout will be used as the temporary maximum firepower value.

[0107] Optionally, the control system further includes:

[0108] The second adjustment module is used to adjust the combustion firepower value within the preset adjustment range and exit the abnormal flameout state if the difference between the maximum value of the first temporary adjustment range and the maximum value of the preset adjustment range is less than the first threshold, and the difference between the minimum value of the first temporary adjustment range and the minimum value of the preset adjustment range is less than the second threshold; the preset adjustment range is the range between the preset maximum firepower value and the minimum firepower value.

[0109] The third adjustment module is also used to adjust the combustion firepower value within the preset adjustment range and exit the abnormal flameout state if the difference between the maximum value of the second temporary adjustment range and the maximum value of the preset adjustment range is less than the first threshold, and the difference between the minimum value of the second temporary adjustment range and the minimum value of the preset adjustment range is less than the second threshold; the preset adjustment range is the range between the preset maximum firepower value and the minimum firepower value.

[0110] Optionally, the control system further includes:

[0111] The fourth regulating module is used to exit the abnormal flameout state if the water outage time interval exceeds a preset time threshold.

[0112] The control system can determine the first temporary adjustment range or the second temporary adjustment range according to the user's fire power demand value. The flameout will not occur during the adjustment of the combustion fire power value, ensuring the constant temperature of the water heater and the user's good usage experience.

[0113] Example 3

[0114] Figure 3 The schematic diagram of the structure of a water heater provided in this embodiment includes a memory, a processor, and a computer program stored in the memory and configured to run on the processor. When the processor executes the program, the control method of the water heater provided in any of the above embodiments is implemented. Figure 3 The water heater 300 shown is merely an example and should not limit the functionality and scope of use of the embodiments of the present disclosure.

[0115] Reference Figure 3 The water heater 300 may be implemented as a general-purpose computing device, such as a server. The components of the water heater 300 may include, but are not limited to, the at least one processor 301, the at least one memory 302, and a bus 303 connecting various system components (including the memory 302 and the processor 301).

[0116] The bus 303 includes a data bus, an address bus, and a control bus.

[0117] The memory 302 may include a volatile memory, such as a random access memory (RAM) 321 and / or a cache memory 322 , and may further include a read-only memory (ROM) 323 .

[0118] The memory 302 may also include a program / utility 325 having a set (at least one) of program modules 324, such program modules 324 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0119] The processor 301 executes various functional applications and data processing by running the computer programs stored in the memory 302, such as the control method of the water heater in the embodiment of the present disclosure.

[0120] The water heater 300 can also communicate with one or more external devices 304 (e.g., a keyboard, pointing device, etc.). This communication can occur via an input / output (I / O) interface 305. Furthermore, the model-generated device 300 can also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 306. As shown, the network adapter 306 communicates with other modules of the model-generated device 300 via a bus 303. It should be understood that, although not shown, other hardware and / or software modules can be used in conjunction with the model-generated device 300, including but not limited to microcode, device drivers, redundant processors, external disk drive arrays, RAID (RAID) systems, tape drives, and data backup storage systems.

[0121] It should be noted that although the above detailed description refers to several units / modules or sub-units / modules of the water heater, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present disclosure, the features and functions of two or more units / modules described above may be embodied in a single unit / module. Conversely, the features and functions of a single unit / module described above may be further divided and embodied by multiple units / modules.

[0122] Example 4

[0123] This embodiment further provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the control method for the water heater provided in any of the above embodiments is implemented.

[0124] The readable storage medium may include, but is not limited to, a portable disk, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0125] In a possible implementation, the present disclosure may also be implemented in the form of a program product, which includes program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the water heater control method provided by any of the above embodiments.

[0126] The program code for executing the present disclosure may be written in any combination of one or more programming languages, and may be executed entirely on the user device, partially on the user device, as a standalone software package, partially on the user device and partially on a remote device, or entirely on the remote device.

[0127] While specific embodiments of the present disclosure have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present disclosure is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present disclosure, and such changes and modifications are intended to fall within the scope of protection of the present disclosure.

Claims

1. A method for controlling a water heater, characterized in that: The control method includes: If the water heater goes out during use, it enters an abnormal flameout state and performs an ignition action; The ignition power value of the most recent successful ignition is used as the temporary maximum fire power value; gradually reducing the combustion power value of the water heater from the temporary maximum power value until a temporary minimum power value is determined; the temporary minimum power value is the minimum power value to ensure that the water heater does not go out; The firepower value range between the temporary maximum firepower value and the temporary minimum firepower value is used as the first temporary adjustment range of the combustion firepower value; When the firepower demand value is within the first temporary adjustment range, the combustion firepower value is controlled to be adjusted within the first temporary adjustment range.

2. The water heater control method according to claim 1, characterized in that: Determining the temporary minimum firepower value includes: If the flameout does not occur during the process of the combustion firepower value gradually decreasing to the minimum firepower value, the minimum firepower value is used as the temporary minimum firepower value; If flameout occurs during the gradual decrease of the combustion power value, and the combustion power value has not decreased to the minimum power value, the combustion power value before flameout is used as the temporary minimum power value.

3. The water heater control method according to claim 1, characterized in that: The control method further includes: If the fire power demand value is greater than the ignition fire power value, the combustion fire power value of the water heater is gradually increased starting from the ignition fire power value until a temporary maximum fire power value is determined; the temporary maximum fire power value is the maximum fire power value that ensures that the water heater does not go out; The firepower value range between the temporary maximum firepower value and the temporary minimum firepower value is used as the second temporary adjustment range of the combustion firepower value; When the firepower demand value is within the second temporary adjustment range, the combustion firepower value is controlled to be adjusted within the second temporary adjustment range.

4. The water heater control method according to claim 3, characterized in that: Determining the temporary maximum firepower value includes: If the combustion firepower value increases to the preset maximum firepower value without flameout, the preset maximum firepower value is used as the temporary maximum firepower value; If flameout occurs during the increase of the combustion firepower value, and the combustion firepower value has not increased to the preset maximum firepower value, the combustion firepower value before flameout is used as the temporary maximum firepower value.

5. The water heater control method according to claim 4, characterized in that: The control method further includes: If the difference between the maximum value of the first temporary adjustment range and the maximum value of the preset adjustment range is less than a first threshold, and the difference between the minimum value of the first temporary adjustment range and the minimum value of the preset adjustment range is less than a second threshold, the combustion firepower value is adjusted according to the preset adjustment range, and the abnormal flameout state is exited; the preset adjustment range is the range between the preset maximum firepower value and the minimum firepower value.

6. The water heater control method according to claim 4, characterized in that: The control method further includes: If the difference between the maximum value of the second temporary adjustment range and the maximum value of the preset adjustment range is less than the first threshold, and the difference between the minimum value of the second temporary adjustment range and the minimum value of the preset adjustment range is less than the second threshold, the combustion firepower value is adjusted according to the preset adjustment range, and the abnormal flameout state is exited; the preset adjustment range is the range between the preset maximum firepower value and the minimum firepower value.

7. The water heater control method according to any one of claims 5 or 6, characterized in that: The control method further includes: If the water outage time interval exceeds the preset time threshold, the abnormal flameout state is exited.

8. A water heater control system, characterized in that: The control system includes: An ignition module, configured to enter an abnormal flameout state and perform an ignition action if the water heater goes out of flame during use; A setting module is used to set the ignition power value of the most recent successful ignition as the temporary maximum power value; a first determining module, configured to gradually reduce the combustion power value of the water heater from the temporary maximum power value as a starting point until a temporary minimum power value is determined; the temporary minimum power value is the minimum power value to ensure that the water heater does not go out; The first adjustment module is used to use the firepower value range between the temporary maximum firepower value and the temporary minimum firepower value as the first temporary adjustment range of the combustion firepower value; when the firepower demand value is within the first temporary adjustment range, the combustion firepower value is controlled to be adjusted within the first temporary adjustment range.

9. A water heater comprising a memory, a processor, and a computer program stored in the memory and configured to run on the processor, wherein: When the processor executes the computer program, the water heater control method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the control method of the water heater according to any one of claims 1 to 7 is implemented.

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