Control method, system, device and storage medium of water heater

Abstract

The application discloses a control method, system and device of a water heater and a storage medium, and relates to the technical field of water heaters. The control method comprises the following steps: controlling a water pump to be turned on according to an initial water flow and an initial outlet water temperature of the water heater, so that the water heater enters a circulation; determining a circulation output power of the water pump; controlling the water pump to operate according to the circulation output power; and controlling the water pump to be turned off according to a comparison result of an outlet water temperature of the water heater at a certain moment and a first preset outlet water temperature, a comparison result of an inlet water temperature at a certain moment and a preset inlet water temperature, or a comparison result of a single circulation time and a preset circulation time, so that the water heater exits the circulation. According to the application, the water pump is controlled to be turned on or turned off according to parameters such as the water flow and the outlet water temperature of the water heater, so that the water heater enters the circulation or exits the circulation, and the circulation output power of the water pump can be determined, the automatic circulation of the water heater is realized, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water heater control, in particular to a water heater control method, system, device and storage medium. BACKGROUND

[0002] In order to meet the demand that hot water comes as soon as the faucet is opened, the market has launched water heaters with a circulation function. The existing water heaters generally use fixed water pump output for circulation, and use fixed inlet and outlet water temperature judgment conditions to enter and exit the circulation function. However, the existing control method cannot optimize the water pump output power according to the actual waterway condition, nor can it enter and exit the circulation function according to the actual waterway condition. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the defects in the prior art that the water heater control method cannot optimize the water pump output power according to the actual waterway condition, and cannot enter and exit the circulation function according to the actual waterway condition, and to provide a water heater control method, system, device and storage medium.

[0004] The present application solves the above technical problems by the following technical solutions:

[0005] The present application provides a water heater control method in the first aspect, which comprises:

[0006] controlling the water pump to be turned on according to the initial water flow and the initial outlet water temperature of the water heater to enter the water heater circulation;

[0007] determining the circulation output power of the water pump;

[0008] controlling the water pump to run according to the circulation output power;

[0009] controlling the water pump to be turned off according to the comparison result of the outlet water temperature of the water heater at a certain time and the first preset outlet water temperature, or the comparison result of the inlet water temperature at a certain time and the preset inlet water temperature, or the comparison result of the single circulation time and the preset circulation time, to exit the water heater circulation.

[0010] Preferably, the step of controlling the water pump to be turned on according to the initial water flow and the initial outlet water temperature of the water heater to enter the water heater circulation comprises:

[0011] if the initial water flow is less than the preset water flow and the initial outlet water temperature is less than the second preset outlet water temperature, controlling the water pump to be turned on to enter the water heater circulation.

[0012] Preferably, the step of determining the circulation output power of the water pump comprises:

[0013] increasing the output power of the water pump by a preset increment.

[0014] acquiring circulating water flow corresponding to different output powers;

[0015] calculating a difference between the circulating water flow corresponding to the output power before the output power is increased and the circulating water flow corresponding to the output power after the output power is increased;

[0016] determining the circulating output power of the water pump according to the difference and the circulating water flow corresponding to the output power before the output power is increased.

[0017] Preferably, the step of controlling the water pump to be closed to exit the water heater circulation according to the comparison result of the water outlet temperature of the water heater at a certain time and the first preset water outlet temperature, or the comparison result of the water inlet temperature at a certain time and the preset water inlet temperature, or the comparison result of the single cycle time and the preset cycle time comprises:

[0018] if the water outlet temperature of the water heater at a certain time is greater than the first preset water outlet temperature, or the water inlet temperature at a certain time is less than or equal to the preset water inlet temperature, or the single cycle time is greater than or equal to the preset cycle time, the water pump is controlled to be closed to exit the water heater circulation.

[0019] Preferably, the control method further comprises:

[0020] acquiring the real-time water inlet temperature of the water heater;

[0021] judging whether the real-time water inlet temperature is less than the water inlet temperature at a certain time, if yes, updating the first water outlet temperature default value, the second water outlet temperature default value and the water inlet temperature default value, if not, keeping the first water outlet temperature default value, the second water outlet temperature default value and the water inlet temperature default value unchanged.

[0022] Preferably, the control method further comprises:

[0023] in the water heater circulation, if the water outlet temperature at a certain time and the water inlet temperature at a certain time remain unchanged for a preset time, it is determined that the pipeline of the water heater reaches thermal equilibrium, and the thermal equilibrium time is acquired;

[0024] if the thermal equilibrium time is less than or equal to the preset cycle time, the preset cycle time is adjusted to the thermal equilibrium time.

[0025] Preferably, the step of determining the circulating output power of the water pump according to the difference and the circulating water flow corresponding to the output power before the output power is increased comprises:

[0026] if the difference is less than or equal to the first preset circulating water flow and the circulating water flow corresponding to the output power before the output power is increased is greater than or equal to the second preset circulating water flow, the increased output power is determined as the circulating output power.

[0027] The second aspect of the present application provides a control system of a water heater, the control system comprising a first control module, a first determination module, a second control module and a third control module;

[0028] The first control module is configured to control the water pump to be turned on according to an initial water flow rate and an initial outlet water temperature of the water heater, so as to enter a water heater circulation;

[0029] The first determination module is configured to determine a circulation output power of the water pump;

[0030] The second control module is configured to control the water pump to operate according to the circulation output power;

[0031] The third control module is configured to control the water pump to be turned off according to a comparison result of an outlet water temperature of the water heater at a certain time and a first preset outlet water temperature, or a comparison result of an inlet water temperature at the certain time and a preset inlet water temperature, or a comparison result of a single circulation time and a preset circulation time, so as to exit the water heater circulation.

[0032] Preferably, the first control module is configured to control the water pump to be turned on to enter the water heater circulation if the initial water flow rate is less than a preset water flow rate and the initial outlet water temperature is less than a second preset outlet water temperature.

[0033] Preferably, the determination module comprises an increasing unit, an obtaining unit, a calculating unit and a determining unit.

[0034] The increasing unit is configured to increase the output power of the water pump by a preset increment.

[0035] The obtaining unit is configured to obtain a circulation water flow rate corresponding to different output powers.

[0036] The calculating unit is configured to calculate a difference between the circulation water flow rate corresponding to the output power before the output power is increased and the circulation water flow rate corresponding to the output power after the output power is increased.

[0037] The determining unit is configured to determine the circulation output power of the water pump according to the difference and the circulation water flow rate corresponding to the output power before the output power is increased.

[0038] Preferably, the third control module is configured to control the water pump to be turned off to exit the water heater circulation if the outlet water temperature of the water heater at the certain time is greater than the first preset outlet water temperature, or the inlet water temperature at the certain time is less than or equal to the preset inlet water temperature, or the single circulation time is greater than or equal to the preset circulation time.

[0039] Preferably, the control system further comprises an obtaining module, a first judging module, an updating module and a maintaining module.

[0040] The acquisition module is configured to acquire a real-time water inlet temperature of the water heater.

[0041] The first determination module is configured to determine whether the real-time water inlet temperature is less than the water inlet temperature at the certain time, and if yes, the update module is called, and if no, the retention module is called.

[0042] The update module is configured to update the first water outlet temperature default value, the second water outlet temperature default value and the water inlet temperature default value.

[0043] The retention module is configured to keep the first water outlet temperature default value, the second water outlet temperature default value and the water inlet temperature default value unchanged.

[0044] Preferably, the control system further comprises a second determination module and an adjustment module.

[0045] The second determination module is configured to, in a water heater cycle, if the water outlet temperature at a certain time and the water inlet temperature at a certain time remain unchanged for a preset time, determine that the pipeline of the water heater reaches thermal equilibrium, and acquire a thermal equilibrium time.

[0046] The adjustment module is configured to, if the thermal equilibrium time is less than or equal to the preset cycle time, adjust the preset cycle time to the thermal equilibrium time.

[0047] Preferably, the determination unit is configured to, if the difference value is less than or equal to a first preset circulating water flow and the circulating water flow corresponding to the output power before the increase is greater than or equal to a second preset circulating water flow, determine the increased output power as the circulating output power.

[0048] The third aspect of the present application provides an electronic device, comprising a memory, a processor and a computer program stored on the memory and used for running on the processor, and the processor implements the control method of the water heater according to the first aspect when executing the computer program.

[0049] The fourth aspect of the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the control method of the water heater according to the first aspect.

[0050] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, the preferred examples of the present application are obtained.

[0051] The positive progress effect of the present application is that:

[0052] The present application controls the opening or closing of the water pump according to the water flow and water outlet temperature of the water heater and other parameters, so that the water heater enters or exits the cycle, and the circulating output power of the water pump can be determined, which realizes the automatic cycle of the water heater and improves the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 Flow chart of the control method of the water heater of embodiment 1 of the present application.

[0054] Figure 2 Flow chart of step 102 of the control method of the water heater of embodiment 1 of the present application.

[0055] Figure 3 Module schematic diagram of the control system of the water heater of embodiment 2 of the present application.

[0056] Figure 4 Structure schematic diagram of the electronic device of embodiment 3 of the present application. DETAILED DESCRIPTION

[0057] The present application will be further described below by way of examples, but the present application is not limited in the scope of the examples.

[0058] Embodiment 1

[0059] The control method of the water heater provided in the present embodiment can be used to control the water heater by manually starting the circulation button or starting the circulation button according to the time period of user's use habit in the specific implementation process. Specifically, as shown in the figure, the control method comprises: Figure 1

[0060] Step 101, controlling the water pump to start according to the initial water flow and the initial outlet water temperature of the water heater, so as to enter the circulation of the water heater;

[0061] In the present embodiment, the initial water flow of the water heater is used to determine whether the user is in the water use state, and the initial outlet water temperature is used to determine whether the water temperature in the pipeline is reduced, and then the water pump is controlled.

[0062] Step 102, determining the circulation output power of the water pump;

[0063] Step 103, controlling the water pump to run according to the circulation output power;

[0064] Step 104, controlling the water pump to stop according to the comparison result of the outlet water temperature of the water heater at a certain time and the first preset outlet water temperature, or the comparison result of the inlet water temperature at a certain time and the preset inlet water temperature, or the comparison result of the single circulation time and the preset circulation time, so as to exit the circulation of the water heater.

[0065] In the present embodiment, the first preset outlet water temperature can be set according to the actual situation. For example, the first preset outlet water temperature can be the set outlet water temperature value T 设 plus the second outlet water temperature default value T2 (i.e., T 设 ​The set water temperature value can be set as 42℃, the second water temperature default value can be set as 5℃, and the preset cycle time can be set as 10 min. Alternatively, the set water temperature value, the second water temperature default value and the preset cycle time can also be set as other values according to actual conditions, which are not limited here.

[0066] As an optional implementation, step 101 comprises:

[0067] If the initial water flow is less than the preset water flow and the initial water temperature is less than the second preset water temperature, the water pump is controlled to be turned on to enter the water heater cycle.

[0068] In this embodiment, the second preset water temperature can be set according to actual conditions. For example, the second preset water temperature can be the set water temperature value T 设 Subtracting the first water temperature default value T1 (i.e., T 设 The second preset water temperature can also be set as other values according to actual conditions, which are not limited here.

[0069] As an optional implementation, as shown in Figure 2 Step 102 comprises:

[0070] Step 1021, increasing the output power of the water pump by a preset increment;

[0071] In this embodiment, after the water pump is turned on, the output power of the water pump is increased by a preset increment step by step, and each step stays for a set time.

[0072] It should be noted that the preset increment is set according to actual requirements. For example, the preset increment is increased from a duty cycle of 30% to a duty cycle of 90%.

[0073] The set time is selected according to the characteristics of the water pump to make the water flow stable.

[0074] Step 1022, obtaining the cycle water flow corresponding to different output powers;

[0075] In this embodiment, different output powers correspond to different cycle water flows.

[0076] Step 1023, calculating the difference between the cycle water flow corresponding to the output power before the increase and the cycle water flow corresponding to the output power after the increase;

[0077] Step 1024, determining the cycle output power of the water pump according to the difference and the cycle water flow corresponding to the output power before the increase.

[0078] This embodiment can select a suitable cycle output power according to different pipeline conditions.

[0079] As an optional implementation, step 104 comprises:

[0080] If the water outlet temperature of the water heater at a certain moment is greater than the first preset water outlet temperature, or the water inlet temperature at a certain moment is less than or equal to the preset water inlet temperature, or the single cycle time is greater than or equal to the preset cycle time, the water pump is controlled to be closed to exit the water heater cycle.

[0081] As an optional implementation, the control method further comprises:

[0082] Step 201, acquiring the real-time water inlet temperature of the water heater;

[0083] Step 202, judging whether the real-time water inlet temperature is less than the water inlet temperature at a certain moment, if yes, it indicates that the pipeline dissipates heat quickly, and step 203 is executed; if not, it indicates that the pipeline has good heat preservation effect, and the temperature minimum point is the end of the pipeline, and step 204 is executed.

[0084] Step 203, updating the first water outlet temperature default value, the second water outlet temperature default value, and the water inlet temperature default value;

[0085] In this embodiment, for example, T1 represents the first water outlet temperature default value, T2 represents the second water outlet temperature default value, T3 represents the water inlet temperature default value, T 实 represents the real-time water inlet temperature, T 进 represents the water inlet temperature at a certain moment; the first water outlet temperature default value T1, the second water outlet temperature default value T2, and the water inlet temperature default value T3 can be updated in the following manner, or can be updated in other manners, which are not limited here.

[0086] For example, T1=5-(T 进 -T 实 ), the minimum value of the first water outlet temperature default value T1 is T1=2℃; T2=5+(T 进 -T 实 ), the maximum value of the second water outlet temperature default value T2 is T2=8℃; T3=8-(T 进 -T 实 ), the minimum value of the water inlet temperature default value T3 is T3=5℃.

[0087] Step 204, keeping the first water outlet temperature default value, the second water outlet temperature default value, and the water inlet temperature default value as default values.

[0088] In this embodiment, for example, the first water outlet temperature default value is kept at 5℃, the second water outlet temperature default value is also kept at 5℃, and the water inlet temperature default value is kept at 8℃.

[0089] As an optional implementation, the control method further comprises:

[0090] Step 301, in the water heater circulation, if the water outlet temperature at a certain moment and the water inlet temperature at a certain moment remain unchanged for a preset time, it is determined that the pipeline of the water heater reaches thermal equilibrium, and the thermal equilibrium time is obtained.

[0091] In this embodiment, the preset time is set according to actual conditions, for example, the preset time can be set to 30 seconds, or other values, which are not limited here.

[0092] For example, in the water heater circulation, if the water outlet temperature at a certain moment and the water inlet temperature at a certain moment remain unchanged for 30 seconds, it is determined that the pipeline of the water heater reaches thermal equilibrium, and the thermal equilibrium time (for example, the water pump circulation time) is obtained.

[0093] Step 302, if the thermal equilibrium time is less than or equal to the preset circulation time, the preset circulation time is adjusted to the thermal equilibrium time.

[0094] In this embodiment, if the thermal equilibrium time is greater than the preset circulation time, the preset circulation time is kept as the default value, for example, the preset circulation time is 10 minutes.

[0095] As an optional implementation, step 1024 includes:

[0096] If the difference is less than or equal to the first preset circulating water flow and the circulating water flow corresponding to the output power before the increase is greater than or equal to the second preset circulating water flow, the increased output power is determined as the circulating output power.

[0097] In this embodiment, the first preset circulating water flow and the second preset circulating water flow are set according to actual conditions, for example, the first preset circulating water flow can be set to 0.2L, and the second preset circulating water flow can be set to 3L.

[0098] For example, if the difference is ≤0.2L and the circulating water flow corresponding to the output power before the increase is ≥3L, the increased output power is determined as the circulating output power, and the circulating output of the water pump is subsequently taken as the circulating output.

[0099] This embodiment controls the opening or closing of the water pump according to the water flow and water outlet temperature of the water heater and other parameters, so that the water heater enters or exits the circulation, and the circulating output power of the water pump can be determined, realizing the automatic circulation of the water heater and improving the user experience.

[0100] Embodiment 2

[0101] The control system of the water heater provided in this embodiment can control the water heater by manually opening the circulation key or opening the circulation key according to the user's usage habits by time period in the specific implementation process. Specifically, as shown inFigure 3 As shown, the control system comprises a first control module 21, a first determination module 22, a second control module 23 and a third control module 24;

[0102] The first control module 21 is configured to control the water pump to be turned on according to the initial water flow and the initial outlet water temperature of the water heater, so as to enter the water heater circulation.

[0103] In this embodiment, whether the user is in the water use state is determined by judging the initial water flow of the water heater, and whether the water temperature in the pipeline is reduced is determined according to the initial outlet water temperature, and then the water pump is controlled.

[0104] The first determination module 22 is configured to determine the circulation output power of the water pump.

[0105] The second control module 23 is configured to control the water pump to run according to the circulation output power.

[0106] The third control module 24 is configured to control the water pump to be turned off according to the comparison result of the outlet water temperature of the water heater at a certain moment and the first preset outlet water temperature, or the comparison result of the inlet water temperature at a certain moment and the preset inlet water temperature, or the comparison result of the single circulation time and the preset circulation time, so as to exit the water heater circulation.

[0107] In this embodiment, the first preset outlet water temperature can be set according to actual conditions, for example, the first preset outlet water temperature can be the set outlet water temperature value T 设 plus the second outlet water temperature default value T2 (i.e., T 设 The set outlet water temperature value can be set to 42℃, the second outlet water temperature default value can be set to 5℃, and the preset circulation time can be set to 10min; in addition, the set outlet water temperature value, the second outlet water temperature default value and the preset circulation time can also be set to other values according to actual conditions, which are not limited here.

[0108] As an optional embodiment, the first control module 21 is configured to control the water pump to be turned on to enter the water heater circulation if the initial water flow is less than the preset water flow and the initial outlet water temperature is less than the second preset outlet water temperature.

[0109] In this embodiment, the second preset outlet water temperature can be set according to actual conditions, for example, the second preset outlet water temperature can be the set outlet water temperature value T 设 minus the first outlet water temperature default value T1 (i.e., T 设 The second preset outlet water temperature can also be set to other values according to actual conditions, which are not limited here.

[0110] As an optional embodiment, the first control module 21 is configured to control the water pump to be turned on to enter the water heater circulation if the initial water flow is less than the preset water flow and the initial outlet water temperature is less than the second preset outlet water temperature. Figure 3As shown, the first determining module 22 comprises an increasing unit 221, an obtaining unit 222, a calculating unit 223 and a determining unit 224;

[0111] The increasing unit 221 is configured to increase the output power of the water pump by a preset increment;

[0112] In this embodiment, after the water pump is turned on, the output power of the water pump is increased by a preset increment step by step, and each step stays for a set time;

[0113] It should be noted that the preset increment is set according to actual needs, for example, the preset increment is increased from a duty cycle of 30% to a duty cycle of 90%;

[0114] The set time is selected according to the characteristics of the water pump to make the water flow stable.

[0115] The obtaining unit 222 is configured to obtain the circulating water flow corresponding to different output powers;

[0116] In this embodiment, different output powers correspond to different circulating water flows.

[0117] The calculating unit 223 is configured to calculate the difference between the circulating water flow corresponding to the output power before the increase and the circulating water flow corresponding to the output power after the increase;

[0118] The determining unit 224 is configured to determine the circulating output power of the water pump according to the difference and the circulating water flow corresponding to the output power before the increase.

[0119] This embodiment can select a suitable circulating output power according to different pipeline conditions.

[0120] As an optional embodiment, the third control module 24 is configured to control the water pump to be turned off to exit the water heater circulation if the water outlet temperature of the water heater at a certain moment is greater than a first preset water outlet temperature, or the water inlet temperature at a certain moment is less than or equal to a preset water inlet temperature, or the single cycle time is greater than or equal to a preset cycle time.

[0121] As an optional embodiment, as shown, Figure 3 The control system further comprises an obtaining module 25, a first judging module 26, an updating module 27 and a maintaining module 28;

[0122] The obtaining module 25 is configured to obtain the real-time water inlet temperature of the water heater;

[0123] The first judging module 26 is configured to judge whether the real-time water inlet temperature is less than the water inlet temperature at a certain moment. If yes, it means that the pipeline dissipates heat quickly, and the updating module 27 is called. If not, it means that the pipeline has good heat preservation effect, and the minimum temperature point is the end of the pipeline, and the maintaining module 28 is called.

[0124] The updating module 27 is configured to update the first outlet water temperature default value, the second outlet water temperature default value and the inlet water temperature default value.

[0125] In the embodiment, T1 represents the first outlet water temperature default value, T2 represents the second outlet water temperature default value, and T3 represents the inlet water temperature default value. 实 T represents the real-time inlet water temperature, T 进 represents the inlet water temperature at a certain time; the first outlet water temperature default value T1, the second outlet water temperature default value T2 and the inlet water temperature default value T3 can be updated in the following manner, or can be updated in other manners, which are not limited herein.

[0126] For example, T1 = 5 - (T 进 -T 实 The minimum value of the first outlet water temperature default value T1 is T1 = 2℃; T2 = 5 + (T 进 -T 实 The maximum value of the second outlet water temperature default value T2 is T2 = 8℃; and T3 = 8 - (T 进 -T 实 The minimum value of the inlet water temperature default value T3 is T3 = 5℃.

[0127] The maintaining module 28 is configured to maintain the first outlet water temperature default value, the second outlet water temperature default value and the inlet water temperature default value unchanged.

[0128] In the embodiment, the first outlet water temperature default value is maintained at 5℃, the second outlet water temperature default value is also maintained at 5℃, and the inlet water temperature default value is maintained at 8℃.

[0129] As an optional embodiment, as shown in the figure, the control system further comprises a second determining module 29 and an adjusting module 30. Figure 3

[0130] The second determining module 29 is configured to, in the water heater circulation, if the outlet water temperature at a certain time and the inlet water temperature at a certain time remain unchanged for a preset time, determine that the pipeline of the water heater reaches thermal equilibrium, and obtain the thermal equilibrium time.

[0131] In the embodiment, the preset time is set according to actual conditions, for example, the preset time can be set to 30 seconds, or can be set to other values, which are not limited herein.

[0132] For example, in the water heater circulation, if the outlet water temperature at a certain time and the inlet water temperature at a certain time remain unchanged for 30 seconds, it is determined that the pipeline of the water heater reaches thermal equilibrium, and the thermal equilibrium time (for example, the water pump circulation time) is obtained.

[0133] ​The adjusting module 30 is configured to adjust the preset cycle time to the heat balance time if the heat balance time is less than or equal to the preset cycle time.

[0134] In this embodiment, the preset cycle time is kept as a default value, for example, the preset cycle time is 10 min, if the heat balance time is greater than the preset cycle time.

[0135] As an optional implementation, the determining unit 224 is configured to determine the increased output power as the circulating output power if the difference is less than or equal to the first preset circulating water flow rate and the circulating water flow rate corresponding to the output power before the increase is greater than or equal to the second preset circulating water flow rate.

[0136] In this embodiment, the first preset circulating water flow rate and the second preset circulating water flow rate are set according to actual conditions, for example, the first preset circulating water flow rate can be set to 0.2 L and the second preset circulating water flow rate can be set to 3 L.

[0137] For example, if the difference is less than or equal to 0.2 L and the circulating water flow rate corresponding to the output power before the increase is greater than or equal to 3 L, the increased output power is determined as the circulating output power, and the circulating output power is used as the circulating output of the water pump subsequently.

[0138] In this embodiment, the water pump is controlled to be turned on or turned off according to the water flow rate and the water outlet temperature of the water heater and other parameters, so that the water heater enters or exits the circulation, and the circulating output power of the water pump can be determined, thereby realizing the automatic circulation of the water heater and improving the user experience.

[0139] Embodiment 3

[0140] Figure 4 A structural schematic diagram of an electronic device provided in the embodiment 3 of the present application is shown. The electronic device includes a memory, a processor, and a computer program stored in the memory and used for running on the processor, and the processor implements the control method of the water heater in the embodiment 1 when executing the program. Figure 4 The electronic device 30 shown is only an example and should not bring any limitation to the function and use range of the embodiment of the present application.

[0141] As shown in Figure 4 The electronic device 30 can be in the form of a general computing device, for example, it can be a server device. The components of the electronic device 30 can include but are not limited to the above-mentioned at least one processor 31, the above-mentioned at least one memory 32, and a bus 33 connecting different system components including the memory 32 and the processor 31.

[0142] The bus 33 includes a data bus, an address bus, and a control bus.

[0143] The memory 32 can include volatile memory, such as random access memory (RAM) 321 and / or cache memory 322, and / or non-volatile memory, such as read only memory (ROM) 323.

[0144] The memory 32 can also include a program / utility 325 having a set (at least one) of 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

[0145] The processor 31 can execute the various functional applications and data processing of the computer program stored in the memory 32, such as the control method of the water heater of embodiment 1.

[0146] The electronic device 30 can also communicate with one or more external devices 34 (such as a keyboard, a pointing device, etc.) via an input / output (I / O) interface 35. Also, the model generating device 30 can communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 36. As Figure 4 illustrated, the network adapter 36 communicates with the other modules of the model generating device 30 via the bus 33. It should be appreciated that although not shown, other hardware and / or software modules could be used in conjunction with the model generating device 30. These include, but are not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data archival storage systems, etc.

[0147] It should be noted that although several units / modules or sub-units / modules of the electronic device are mentioned in the foregoing detailed description, such a division is merely exemplary and not mandatory. Indeed, according to the embodiments of the present application, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided into a plurality of units / modules.

[0148] Embodiment 4

[0149] The present embodiment provides a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the control method of the water heater provided in embodiment 1.

[0150] More specifically, the readable storage medium can include, but is not limited to: a portable disc, 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.

[0151] In a possible implementation, the application can also be implemented in the form of a program product, which comprises program codes for causing the terminal device to execute the control method of the water heater described in Embodiment 1 when the program product is run on the terminal device.

[0152] Wherein, the program code for executing the application can be written in any combination of one or more programming languages, and can be executed completely on the user device, partially on the user device, as a stand-alone software package, partially on the user device and partially on a remote device, or completely on a remote device.

[0153] Although the specific embodiments of the application are described above, those skilled in the art should understand that this is only an illustration, and the protection scope of the application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the application, and such changes and modifications all fall within the protection scope of the application.

Claims

1. A control method of a water heater, characterized by, The control method comprises: controlling the water pump to start according to the initial water flow and the initial outlet water temperature of the water heater to enter the water heater circulation; determining the circulation output power of the water pump; controlling the water pump to run according to the circulation output power; controlling the water pump to stop according to the comparison result of the outlet water temperature of the water heater at a certain time and the first preset outlet water temperature or the comparison result of the inlet water temperature at a certain time and the preset inlet water temperature or the comparison result of the single circulation time and the preset circulation time to exit the water heater circulation; the step of determining the circulation output power of the water pump comprises: increasing the output power of the water pump by a preset increment; obtaining the circulation water flow corresponding to different output powers; calculating the difference between the circulation water flow corresponding to the output power before the increase and the circulation water flow corresponding to the output power after the increase; determining the circulation output power of the water pump according to the difference and the circulation water flow corresponding to the output power before the increase.

2. The control method of the water heater according to claim 1, characterized by, the step of controlling the water pump to start according to the initial water flow and the initial outlet water temperature of the water heater to enter the water heater circulation comprises: if the initial water flow is less than a preset water flow and the initial outlet water temperature is less than a second preset outlet water temperature, controlling the water pump to start to enter the water heater circulation.

3. The control method of the water heater according to claim 1, characterized by, the step of controlling the water pump to stop according to the comparison result of the outlet water temperature of the water heater at a certain time and the first preset outlet water temperature or the comparison result of the inlet water temperature at a certain time and the preset inlet water temperature or the comparison result of the single circulation time and the preset circulation time to exit the water heater circulation comprises: if the outlet water temperature of the water heater at a certain time is greater than the first preset outlet water temperature, or the inlet water temperature at a certain time is less than or equal to the preset inlet water temperature, or the single circulation time is greater than or equal to the preset circulation time, controlling the water pump to stop to exit the water heater circulation.

4. The control method of the water heater according to claim 1, characterized by, the control method further comprises: obtaining the real-time inlet water temperature of the water heater; judging whether the real-time inlet water temperature is less than the inlet water temperature at a certain time, if yes, updating the first outlet water temperature default value, the second outlet water temperature default value and the inlet water temperature default value, if not, keeping the first outlet water temperature default value, the second outlet water temperature default value and the inlet water temperature default value unchanged.

5. The control method of the water heater according to claim 1, characterized by, the control method further comprises: in the water heater circulation, if the outlet water temperature at a certain time and the inlet water temperature at a certain time remain unchanged for a preset time, determining that the pipeline of the water heater reaches thermal equilibrium and obtaining the thermal equilibrium time; if the thermal equilibrium time is less than or equal to the preset circulation time, adjusting the preset circulation time to the thermal equilibrium time.

6. The control method of the water heater according to claim 1, characterized by, the step of determining the circulation output power of the water pump according to the difference and the circulation water flow corresponding to the output power before the increase comprises: if the difference is less than or equal to a first preset circulation water flow and the circulation water flow corresponding to the output power before the increase is greater than or equal to a second preset circulation water flow, determining the increased output power as the circulation output power.

7. A control system for a water heater, the control system comprising: the control system comprises a first control module, a determination module, a second control module and a third control module; the first control module is used for controlling the water pump to start according to the initial water flow and the initial outlet water temperature of the water heater to enter the water heater circulation; The determining module is configured to determine the circulating output power of the water pump; The second control module is configured to control the water pump according to the circulating output power; The third control module is configured to control the water pump to be closed according to a comparison result of a current water outlet temperature of the water heater and a first preset water outlet temperature, or a comparison result of a current water inlet temperature and a preset water inlet temperature, or a comparison result of a single cycle time and a preset cycle time, so as to exit the water heater circulation; The determining module comprises an increasing unit, an obtaining unit, a calculating unit and a determining unit; The increasing unit is configured to increase the output power of the water pump by a preset increment; The obtaining unit is configured to obtain a circulating water flow corresponding to different output powers; The calculating unit is configured to calculate a difference between the circulating water flow corresponding to the output power before the increase and the circulating water flow corresponding to the output power after the increase; The determining unit is configured to determine the circulating output power of the water pump according to the difference and the circulating water flow corresponding to the output power before the increase.

8. An electronic device comprising a memory, a processor, and a computer program stored on the memory for running on the processor, characterized in that, The processor executes the computer program to implement the control method of the water heater according to any one of claims 1-6.

9. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the control method of the water heater according to any one of claims 1-6.

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