Regulation and control method and system for minimum yield of water heater, water heater and medium

Abstract

The invention discloses a control method and system for the minimum yield of a water heater, the water heater and a medium. The control method comprises the steps that yield related data, current related data, temperature related data and flow data of the water heater are obtained; according to the water inlet temperature, the set temperature and the flow data, the required load is determined and combusted; judging whether the outlet water temperature is greater than a set temperature; if yes, the corrected minimum proportional valve current is calculated according to the temperature related data, the yield related data, the current related data and the flow data; when the corrected minimum proportional valve current is greater than the minimum proportional valve current, the water heater is controlled to burn at a minimum yield corresponding to the corrected minimum proportional valve current. The corrected minimum proportional valve current is calculated through the preset algorithm, the comparison result of the corrected minimum proportional valve current and the minimum proportional valve current is used as the criterion for regulating and controlling the minimum yield, the minimum temperature rise of the water heater is reduced, and combustion is not continued when the inlet water is high in summer and reaches the set temperature, so that the experience degree is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and in particular to a method and system for regulating the minimum yield of a water heater, a water heater and a medium. Background Art

[0002] At present, gas water heaters heat water by burning fuels such as natural gas, liquefied petroleum gas or artificial gas, and transfer the heat generated by combustion to the cold water flowing through the heat exchanger through heat exchange to achieve heating. The yield of a gas water heater represents the amount of hot water required to heat cold water to a set temperature rise per minute, in units of L / min. When the yield of a gas water heater is 16 liters / minute, it means that the temperature of 16 liters of cold water can be raised to a temperature difference of 25K per minute. Each gas water heater has a minimum yield, which refers to the minimum hot water flow rate that can be provided or the working state at the minimum firepower.

[0003] In summer, the gas water heater has a high inlet water temperature and a large minimum output rate, causing the actual outlet water temperature to exceed the set temperature, reducing the user experience. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of gas water heaters in the prior art, such as high water inlet temperature and large minimum yield, which result in actual water outlet temperature being greater than the set temperature in summer and poor user experience, and to provide a method, system, water heater and medium for controlling the minimum yield of a water heater.

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

[0006] In a first aspect, the present invention provides a method for regulating the minimum yield of a water heater, the method comprising:

[0007] Obtaining productivity-related data, current-related data, temperature-related data and flow data of the water heater; the temperature-related data includes the set temperature, water inlet temperature and water outlet temperature; the current-related data includes the maximum proportional valve current and the minimum proportional valve current;

[0008] Determine the required load according to the water inlet temperature, the set temperature and the flow data, and control the water heater to burn at the required load;

[0009] During the combustion process, determining whether the outlet water temperature is greater than the set temperature;

[0010] If yes, then calculating a corrected minimum proportional valve current according to the temperature-related data, the yield-related data, the current-related data and the flow rate data;

[0011] When the corrected minimum proportional valve current is greater than the minimum proportional valve current, the water heater is controlled to burn at a minimum yield corresponding to the corrected minimum proportional valve current.

[0012] Preferably, the step of calculating and obtaining the corrected minimum proportional valve current according to the temperature-related data, the yield-related data, the current-related data and the flow data comprises:

[0013] Calculate the actual water yield and the target water yield according to the set temperature, the water inlet temperature and the water outlet temperature;

[0014] Calculating a yield deviation according to the actual water yield and the target water yield, and calculating a proportionality coefficient according to the yield-related data and the current-related data;

[0015] The corrected minimum proportional valve current is calculated according to the minimum proportional valve current, the yield deviation and the proportional coefficient.

[0016] Preferably, the control method further comprises:

[0017] When the corrected minimum proportional valve current is not greater than the minimum proportional valve current, the water heater is controlled to burn at a minimum yield corresponding to the minimum proportional valve current.

[0018] Preferably, the corrected minimum proportional valve current is obtained by the following formula:

[0019] I′ min =I min -ΔP / k

[0020] Among them, I′ min Represents the corrected minimum proportional valve current, I min represents the minimum proportional valve current, ΔP represents the yield deviation, and k represents the proportional coefficient.

[0021] In a second aspect, the present invention provides a water heater minimum yield control system, the control system comprising:

[0022] An acquisition module, used to acquire productivity-related data, current-related data, temperature-related data and flow data of the water heater; the temperature-related data includes a set temperature, an inlet water temperature and an outlet water temperature; the current-related data includes a maximum proportional valve current and a minimum proportional valve current;

[0023] A determination module, used for determining a required load according to the inlet water temperature, the set temperature and the flow data, and controlling the water heater to burn at the required load;

[0024] A judgment module, used to judge whether the outlet water temperature is greater than the set temperature during the combustion process; if so, calling the calculation module;

[0025] The calculation module is used to calculate the corrected minimum proportional valve current according to the temperature-related data, the yield-related data, the current-related data and the flow data;

[0026] The first control module is used for controlling the water heater to burn at a minimum yield corresponding to the corrected minimum proportional valve current when the corrected minimum proportional valve current is greater than the minimum proportional valve current.

[0027] Preferably, the calculation module includes:

[0028] A first calculation unit, configured to calculate an actual water yield and a target water yield according to the set temperature, the water inlet temperature and the water outlet temperature;

[0029] a second calculation unit, configured to calculate a yield deviation according to the actual water yield and the target water yield, and to calculate a proportionality coefficient according to the yield-related data and the current-related data;

[0030] The third calculation unit is used to calculate the corrected minimum proportional valve current according to the minimum proportional valve current, the yield deviation and the proportional coefficient.

[0031] Preferably, the control system further comprises:

[0032] The second control module is used for controlling the water heater to burn at a minimum yield corresponding to the minimum proportional valve current when the corrected minimum proportional valve current is not greater than the minimum proportional valve current.

[0033] Preferably, the corrected minimum proportional valve current is obtained by the following formula:

[0034] I′ min =I min -ΔP / k

[0035] Among them, I′ min Represents the corrected minimum proportional valve current, I min represents the minimum proportional valve current, ΔP represents the yield deviation, and k represents the proportional coefficient.

[0036] In a third aspect, the present invention further provides a water heater, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the method for controlling the minimum yield of the water heater as described in the first aspect is implemented.

[0037] In a fourth aspect, the present invention further provides a computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the method for controlling the minimum yield of a water heater as described in the first aspect.

[0038] The positive and progressive effects of the present invention are: providing a method, system, water heater and medium for regulating the minimum yield of a water heater, obtaining yield-related data, current-related data, temperature-related data and flow data of the water heater; determining the demand load according to the inlet water temperature, set temperature and flow data, and controlling the water heater to burn with the demand load; judging whether the outlet water temperature is greater than the set temperature; if so, calculating the corrected minimum proportional valve current according to the temperature-related data, yield-related data, current-related data and flow data; when the corrected minimum proportional valve current is greater than the minimum proportional valve current, controlling the water heater to burn with the minimum yield corresponding to the corrected minimum proportional valve current. The present invention calculates the corrected minimum proportional valve current through a preset algorithm, and uses the comparison result of the corrected proportional valve current and the minimum proportional valve current as a criterion for regulating the minimum yield, thereby reducing the minimum temperature rise of the water heater and, in the case of high inlet water temperature in summer, does not continue to burn when the set temperature is reached, so as to ensure the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a flow chart of the method for controlling the minimum yield of a water heater according to Example 1 of the present invention.

[0040] Figure 2 This is a flow chart of step S4 of the method for controlling the minimum yield of a water heater according to embodiment 1 of the present invention.

[0041] Figure 3 This is a schematic diagram of the first module of the water heater minimum productivity control system of Example 2 of the present invention.

[0042] Figure 4 This is a schematic diagram of the second module of the water heater minimum yield control system of Example 2 of the present invention.

[0043] Figure 5 This is a schematic diagram of the hardware structure of the water heater according to Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0044] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0045] Example 1

[0046] This embodiment provides a method for controlling the minimum output rate of a water heater. Figure 1 As shown, the control method comprises:

[0047] S1. Obtaining the productivity-related data, current-related data, temperature-related data and flow data of the water heater; the temperature-related data includes the set temperature, water inlet temperature and water outlet temperature; the current-related data includes the maximum proportional valve current and the minimum proportional valve current;

[0048] S2, determining the demand load according to the inlet water temperature, the set temperature and the flow data, and controlling the water heater to burn at the demand load;

[0049] S3. During the combustion process, determine whether the water temperature is greater than the set temperature; if so, execute step S4;

[0050] S4, calculating and obtaining a corrected minimum proportional valve current according to the temperature-related data, the yield-related data, the current-related data and the flow rate data;

[0051] S51. When the corrected minimum proportional valve current is greater than the minimum proportional valve current, the water heater is controlled to burn at a minimum yield corresponding to the corrected minimum proportional valve current.

[0052] S52: When the corrected minimum proportional valve current is not greater than the minimum proportional valve current, the water heater is controlled to burn at a minimum yield corresponding to the minimum proportional valve current.

[0053] In this embodiment, the yield-related data includes a set maximum yield and a set minimum yield. The set maximum yield corresponds to the maximum proportional valve current, and the set minimum yield corresponds to the minimum proportional valve current. In the temperature-related data, the inlet water temperature usually remains unchanged, and the outlet water temperature will change with the change of the set temperature. The demand load is calculated by the following formula. When the flow data is detected to be greater than the set start flow data (for example, 2.8L / min), the water heater is controlled to start at Q 需 Start combustion normally and determine the deviation between the water temperature and the set temperature.

[0054] Q 需 =(T 设 -T 进 )*q

[0055] Among them, T 设 Indicates the set temperature, T 进 Indicates the inlet water temperature, Q 需 represents the demand load, and q represents the flow data.

[0056] When it is detected that the outlet water temperature is greater than the set temperature, it indicates that combustion at the preset minimum yield cannot meet the user's water demand, and the preset minimum yield needs to be further reduced. The yield deviation is calculated based on the outlet water temperature, inlet water temperature, set temperature and flow data, and the corrected minimum proportional valve current is calculated through the yield deviation; the corrected minimum proportional valve current is compared with the minimum proportional valve current, and the yield corresponding to the largest proportional valve current of the two is used as the minimum yield for combustion. It should be noted that the minimum proportional valve current is the minimum value set inside the system, and the purpose is to avoid the combustion flame height being too low when the minimum proportional valve current is too low, which affects the life of the water heater.

[0057] In one embodiment, if Figure 2 As shown, step S4 specifically includes:

[0058] S41, calculating the actual water yield and the target water yield according to the set temperature, the water inlet temperature and the water outlet temperature;

[0059] S42, calculating the yield deviation according to the actual water yield and the target water yield, and calculating the proportionality coefficient according to the yield-related data and the current-related data;

[0060] S43, calculating and obtaining a corrected minimum proportional valve current according to the minimum proportional valve current, the yield deviation and the proportional coefficient.

[0061] Among them, the corrected minimum proportional valve current is obtained by the following formula:

[0062] I′ min =I min -ΔP / k

[0063] I′ min Indicates the corrected minimum proportional valve current, I min represents the minimum proportional valve current, ΔP represents the yield deviation, and k represents the proportional coefficient.

[0064] In this embodiment, the set temperature, water inlet temperature, and water outlet temperature are calculated by the following formula to obtain the yield deviation:

[0065] P 实际 =(T 出 -T 进 )*q / 25

[0066] P 目标 =(T 设 -T 进) *q / 25

[0067] ΔP=(P 实际 -P 目标 )

[0068] Among them, T 出Indicates the set temperature, P 实际 Indicates the actual water yield, P 目标 represents the target water yield, and ΔP represents the yield deviation.

[0069] The proportional coefficient is calculated based on the set maximum yield, the set minimum yield, the corresponding maximum proportional valve current and the minimum proportional valve current:

[0070] k=(P max -P min ) / (I max -I min )

[0071] In the present embodiment, a method for controlling the minimum yield of a water heater is provided. A corrected minimum proportional valve current is calculated through temperature-related data, yield-related data, current-related data and flow data. The comparison result of the corrected proportional valve current and the minimum proportional valve current is used as a criterion for controlling the minimum yield. The minimum temperature rise of the water heater is reduced, and in summer, when the water inlet is high and reaches the set temperature, combustion will not continue, so as to ensure the user experience.

[0072] Example 2

[0073] This embodiment provides a water heater minimum yield control system, such as Figure 3 As shown, the regulatory system includes:

[0074] The acquisition module 210 is used to acquire the productivity-related data, current-related data, temperature-related data and flow data of the water heater; the temperature-related data includes the set temperature, the water inlet temperature and the water outlet temperature; the current-related data includes the maximum proportional valve current and the minimum proportional valve current;

[0075] A determination module 220, for determining a required load according to the inlet water temperature, the set temperature and the flow data, and controlling the water heater to burn at the required load;

[0076] The judgment module 230 is used to judge whether the water temperature is greater than the set temperature during the combustion process; if so, the calculation module 240 is called;

[0077] A calculation module 240, used for calculating a corrected minimum proportional valve current according to the temperature-related data, the yield-related data, the current-related data and the flow data;

[0078] The first control module 251 is used to control the water heater to burn at a minimum yield corresponding to the corrected minimum proportional valve current when the corrected minimum proportional valve current is greater than the minimum proportional valve current.

[0079] The second control module 252 is used to control the water heater to burn at a minimum yield corresponding to the minimum proportional valve current when the corrected minimum proportional valve current is not greater than the minimum proportional valve current.

[0080] In this embodiment, the yield-related data includes a set maximum yield and a set minimum yield. The set maximum yield corresponds to the maximum proportional valve current, and the set minimum yield corresponds to the minimum proportional valve current. In the temperature-related data, the inlet water temperature usually remains unchanged, and the outlet water temperature will change with the change of the set temperature. The demand load is calculated by the following formula. When the flow data is detected to be greater than the set start flow data (for example, 2.8L / min), the water heater is controlled to start at Q 需 Start combustion normally and determine the deviation between the water temperature and the set temperature.

[0081] Q 需 =(T 设 -T 进 )*q

[0082] Among them, T 设 Indicates the set temperature, T 进 Indicates the inlet water temperature, Q 需 represents the demand load, and q represents the flow data.

[0083] When it is detected that the outlet water temperature is greater than the set temperature, it indicates that the preset minimum yield is used for combustion at this time, which cannot meet the user's water demand, and the preset minimum yield needs to be further reduced. The calculation module 240 calculates the yield deviation based on the outlet water temperature, the inlet water temperature, the set temperature and the flow data, and obtains the corrected minimum proportional valve current through the yield deviation calculation; the first control module 251 or the second control module 252 compares the corrected minimum proportional valve current with the minimum proportional valve current, and uses the yield corresponding to the largest proportional valve current as the minimum yield for combustion. It should be noted that the minimum proportional valve current is the minimum value set inside the system, and the purpose is to avoid the combustion flame height being too low after the minimum proportional valve current is too low, which affects the life of the water heater.

[0084] In one embodiment, if Figure 4 As shown, the calculation module 240 includes:

[0085] The first calculation unit 241 is used to calculate the actual water yield and the target water yield according to the set temperature, the water inlet temperature and the water outlet temperature;

[0086] A second calculation unit 242, used to calculate a yield deviation according to the actual water yield and the target water yield, and to calculate a proportionality coefficient according to the yield-related data and the current-related data;

[0087] The third calculation unit 243 is used to calculate the corrected minimum proportional valve current according to the minimum proportional valve current, the yield deviation and the proportional coefficient.

[0088] Among them, the corrected minimum proportional valve current is obtained by the following formula:

[0089] I′ min =I min -ΔP / k

[0090] I′ min Indicates the corrected minimum proportional valve current, I min represents the minimum proportional valve current, ΔP represents the yield deviation, and k represents the proportional coefficient.

[0091] In this embodiment, the set temperature, water inlet temperature, and water outlet temperature are calculated by the following formula to obtain the yield deviation:

[0092] P 实际 =(T 出 -T 进 )*q / 25

[0093] P 目标 =(T 设 -T 进) *q / 25

[0094] ΔP=(P 实际 -P 目标 )

[0095] Among them, T 出 Indicates the set temperature, P 实际 Indicates the actual water yield, P 目标 represents the target water yield, and ΔP represents the yield deviation.

[0096] The maximum yield, the minimum yield, the corresponding maximum proportional valve current and the minimum proportional valve current are calculated by the following formula to obtain the proportional coefficient:

[0097] k=(P max -P min ) / (I max -I min )

[0098] Where k represents the proportionality coefficient, P max Indicates the maximum yield, P min Indicates setting the minimum yield, I max Indicates the maximum proportional valve current.

[0099] In the present embodiment, a water heater minimum yield control system is provided, in which a calculation module calculates a corrected minimum proportional valve current through temperature-related data, yield-related data, current-related data and flow data, and a first control module uses a comparison result between the corrected proportional valve current and the minimum proportional valve current as a criterion for controlling the minimum yield, thereby reducing the minimum temperature rise of the water heater and stopping combustion when the set temperature is reached when the water inlet temperature is high in summer, so as to ensure user experience.

[0100] Example 3

[0101] Figure 5 The schematic diagram of the structure of a water heater provided in this embodiment. The range hood includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the method for controlling the minimum yield of the water heater of embodiment 1 is implemented. Figure 5 The water heater 60 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0102] The water heater 60 may be in the form of a general-purpose computing device, such as a server device. The components of the water heater 60 may include but are not limited to: at least one processor 61, at least one memory 62, and a bus 63 connecting different system components (including the memory 62 and the processor 61).

[0103] The bus 63 includes a data bus, an address bus, and a control bus.

[0104] The memory 62 may include a volatile memory, such as a random access memory (RAM) 621 and / or a cache memory 622 , and may further include a read-only memory (ROM) 623 .

[0105] The memory 62 may also include a program / utility 625 having a set (at least one) of program modules 624, such program modules 624 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.

[0106] The processor 61 executes various functional applications and data processing by running the computer programs stored in the memory 62, such as the method for controlling the minimum yield of the water heater in Example 1 of the present invention.

[0107] The water heater 60 may also communicate with one or more external devices 64 (e.g., keyboards, pointing devices, etc.). Such communication may be performed via an input / output (I / O) interface 65. Furthermore, the model-generated water heater 60 may 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 66. As shown, the network adapter 66 communicates with other modules of the model-generated water heater 60 via a bus 63. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the model-generated water heater 60, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems, etc.

[0108] It should be noted that although several units / modules or sub-units / modules of the range hood are mentioned in the above detailed description, such division is merely exemplary and not mandatory. In fact, according to an embodiment of the present invention, the features and functions of two or more units / modules described above may be embodied in one unit / module. Conversely, the features and functions of one unit / module described above may be further divided to be embodied by multiple units / modules.

[0109] Example 4

[0110] This embodiment provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the steps of the method for controlling the minimum yield of a water heater of Embodiment 1 are implemented.

[0111] 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 of the above.

[0112] In a possible implementation, the present invention can also be implemented in the form of a program product, which includes a 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 steps of the method for controlling the minimum yield of the water heater in Example 1.

[0113] The program code for executing the present invention may be written in any combination of one or more programming languages, and may be executed entirely on a user device, partially on a user device, as an independent software package, partially on a user device and partially on a remote device, or entirely on a remote device.

[0114] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention 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 invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A method for controlling the minimum yield of a water heater, characterized in that: The control method comprises: Obtaining productivity-related data, current-related data, temperature-related data and flow data of the water heater; the temperature-related data includes the set temperature, water inlet temperature and water outlet temperature; the current-related data includes the maximum proportional valve current and the minimum proportional valve current; Determine the required load according to the water inlet temperature, the set temperature and the flow data, and control the water heater to burn at the required load; During the combustion process, determining whether the outlet water temperature is greater than the set temperature; If yes, then calculating a corrected minimum proportional valve current according to the temperature-related data, the yield-related data, the current-related data and the flow rate data; When the corrected minimum proportional valve current is greater than the minimum proportional valve current, the water heater is controlled to burn at a minimum yield corresponding to the corrected minimum proportional valve current.

2. The method for controlling the minimum yield of a water heater according to claim 1, characterized in that: The step of calculating and obtaining a corrected minimum proportional valve current according to the temperature-related data, the yield-related data, the current-related data and the flow data comprises: Calculate the actual water yield and the target water yield according to the set temperature, the water inlet temperature and the water outlet temperature; Calculating a yield deviation according to the actual water yield and the target water yield, and calculating a proportionality coefficient according to the yield-related data and the current-related data; The corrected minimum proportional valve current is calculated according to the minimum proportional valve current, the yield deviation and the proportional coefficient.

3. The method for controlling the minimum yield of a water heater according to claim 1, characterized in that: The control method further comprises: When the corrected minimum proportional valve current is not greater than the minimum proportional valve current, the water heater is controlled to burn at a minimum yield corresponding to the minimum proportional valve current.

4. The method for controlling the minimum yield of a water heater according to claim 2, characterized in that: The corrected minimum proportional valve current is obtained by the following formula: I ′ min =I min -ΔP / k Among them, I ′ min Represents the corrected minimum proportional valve current, I min represents the minimum proportional valve current, ΔP represents the yield deviation, and k represents the proportional coefficient.

5. A water heater minimum yield control system, characterized in that: The control system comprises: An acquisition module, used to acquire productivity-related data, current-related data, temperature-related data and flow data of the water heater; the temperature-related data includes a set temperature, an inlet water temperature and an outlet water temperature; the current-related data includes a maximum proportional valve current and a minimum proportional valve current; A determination module, used for determining a required load according to the inlet water temperature, the set temperature and the flow data, and controlling the water heater to burn at the required load; A judgment module, used to judge whether the outlet water temperature is greater than the set temperature during the combustion process; if so, calling the calculation module; The calculation module is used to calculate the corrected minimum proportional valve current according to the temperature-related data, the yield-related data, the current-related data and the flow data; The first control module is used for controlling the water heater to burn at a minimum yield corresponding to the corrected minimum proportional valve current when the corrected minimum proportional valve current is greater than the minimum proportional valve current.

6. The water heater minimum yield control system according to claim 5, characterized in that: The calculation module comprises: A first calculation unit, configured to calculate an actual water yield and a target water yield according to the set temperature, the water inlet temperature and the water outlet temperature; a second calculation unit, configured to calculate a yield deviation according to the actual water yield and the target water yield, and to calculate a proportionality coefficient according to the yield-related data and the current-related data; The third calculation unit is used to calculate the corrected minimum proportional valve current according to the minimum proportional valve current, the yield deviation and the proportional coefficient.

7. The water heater minimum yield control system according to claim 5, characterized in that: The control system also includes: The second control module is used for controlling the water heater to burn at a minimum yield corresponding to the minimum proportional valve current when the corrected minimum proportional valve current is not greater than the minimum proportional valve current.

8. The water heater minimum yield control system according to claim 6, characterized in that: The corrected minimum proportional valve current is obtained by the following formula: I ′ min =I min -ΔP / k Among them, I ′ min Represents the corrected minimum proportional valve current, I min represents the minimum proportional valve current, ΔP represents the yield deviation, and k represents the proportional coefficient.

9. A water heater, characterized in that: The method comprises a processor, a memory and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the method for controlling the minimum yield of the water heater as claimed in any one of claims 1 to 4 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for controlling the minimum yield of a water heater according to any one of claims 1 to 4 is implemented.

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