Water heater control method, water heater, electronic equipment and storage medium

Abstract

The invention discloses a water heater control method, a water heater, electronic equipment and a storage medium, the water heater control method is applied to a control module in the water heater, a pipeline, an energy storage module and a heat source module are further arranged in the water heater, the energy storage module and the heat source module are connected to the pipeline in series, and the heat source module comprises an electric heating module and a gas heating module; the method comprises the steps of firstly obtaining water inlet flow and water inlet temperature of a water inlet of the water heater and target water outlet temperature of a water outlet; the water temperature after being heated by the energy storage module and before the heat source module is started is used as the initial heating temperature; determining a started heat source object from a heat source module based on the water inlet flow, the target water outlet temperature and the initial heating temperature; and the heating power of the heat source object is determined based on the water inlet flow, the water inlet temperature, the target water outlet temperature and the initial heating temperature, so that the water temperature at the water outlet of the water heater reaches the target water outlet temperature. The energy storage module can heat water in the pipeline in advance, the heating power of the heat source object can also automatically adapt to the needed heating power, and instant use is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and in particular to a water heater control method, a water heater, an electronic device and a storage medium. Background Art

[0002] Gas water heaters are household appliances commonly used in people's lives. They are widely used because they can quickly produce hot water. Gas water heaters usually include a shell, a gas heating component deployed inside the shell, and a water inlet pipe and a water outlet pipe arranged on the shell. The cold water flowing in from the water inlet pipe is heated by the gas heating component and becomes hot water and flows out from the water outlet pipe. When the user turns off the water and then turns on the water for a second use, the burner of the gas water heater goes through a process of flameout and then ignition. Since the water inlet pipe at the front end of the heat exchanger of the gas water heater is full of cold water, and it takes time for the burner to ignite and heat the heat exchanger, this part of the cold water cannot be heated in time and then flows out of the heat exchanger. At this time, the user feels that the outlet water temperature is significantly lower, and it cannot be turned on and used immediately, resulting in a poor user experience. Summary of the invention

[0003] The present invention provides a water heater control method to solve the problems of existing gas water heaters and electric water heaters that they cannot be turned on and used immediately and have poor user experience.

[0004] In a first aspect, the present invention provides a water heater control method, which is applied to a control module in the water heater, wherein the water heater is further provided with a pipeline and an energy storage module and a heat source module connected in series to the pipeline, wherein the heat source module includes an electric heating module and a gas heating module; the water heater control method includes:

[0005] Obtaining the water inlet flow rate, water inlet temperature and target water outlet temperature of the water inlet of the water heater;

[0006] The water temperature after being heated by the energy storage module and before starting the heat source module is used as the initial heating temperature;

[0007] Determining a heat source object to be started from the heat source module based on the water inlet flow rate, the target water outlet temperature and the initial heating temperature;

[0008] When there is a started heat source object, the heating power of the started heat source object is determined based on the water inlet flow, the water inlet temperature, the target water outlet temperature and the initial heating temperature so that the water temperature at the water outlet of the water heater reaches the target water outlet temperature.

[0009] In a second aspect, the present invention provides a water heater, comprising a control module, a pipeline, and an energy storage module and a heat source module connected in series to the pipeline, wherein the heat source module comprises an electric heating module and a gas heating module, and the control module comprises:

[0010] An information acquisition submodule, used to acquire the water inlet flow rate, water inlet temperature and target water outlet temperature of the water inlet of the water heater;

[0011] An initial heating temperature acquisition submodule, used to take the water temperature after being heated by the energy storage module and before starting the heat source module as the initial heating temperature;

[0012] A start-up heat source object determination submodule is used to determine a start-up heat source object from the heat source module based on the water inlet flow rate, the target water outlet temperature and the initial heating temperature;

[0013] The heating power setting submodule is used to determine the heating power of the started heat source object based on the water inlet flow, the water inlet temperature, the target water outlet temperature and the initial heating temperature when there is a started heat source object, so that the water temperature at the water outlet of the water heater reaches the target water outlet temperature.

[0014] In a third aspect, the present invention provides an electronic device, the electronic device comprising:

[0015] at least one processor; and

[0016] a memory communicatively connected to the at least one processor; wherein,

[0017] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the water heater control method described in the first aspect of the present invention.

[0018] In a fourth aspect, the present invention provides a computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a processor to implement the water heater control method described in the first aspect of the present invention when executed.

[0019] An embodiment of the present invention provides a water heater control method, which is applied to a control module in a water heater. The water heater is also provided with a pipeline and an energy storage module and a heat source module connected in series to the pipeline, and the heat source module includes an electric heating module and a gas heating module. The water heater control method includes: obtaining a water inlet flow rate, a water inlet temperature and a target water outlet temperature of a water inlet of the water heater; taking the water temperature after being heated by the energy storage module and before starting the heat source module as an initial heating temperature; determining a heat source object to be started from the heat source module based on the water inlet flow rate, the target water outlet temperature and the initial heating temperature; when there is a heat source object to be started, determining the heating power of the started heat source object based on the water inlet flow rate, the water inlet temperature, the target water outlet temperature and the initial heating temperature, so that the water temperature at the water outlet of the water heater reaches the target water outlet temperature.

[0020] First, the water heater of the present invention includes an energy storage module. The heat stored in the energy storage module can preheat the water in the pipe, so that the initial heating temperature of the water in the pipe is increased and the heating power and heating time of the heat source module are reduced, thereby reducing the waiting time for the user to use hot water for the second time. The water temperature at the outlet of the water heater can quickly reach the target water outlet temperature, giving the user a ready-to-use experience.

[0021] Second, for the heat source module, the water inlet flow rate and the target water outlet temperature are proportional to the required heating power of the heat source module, and the initial heating temperature is inversely proportional to the required heating power of the heat source module. Different heat source objects in the heat source module have different heating powers. Therefore, a suitable heat source object can be selected from the heat source module based on the water inlet flow rate, the target water outlet temperature and the initial heating temperature. After determining the heat source object to be started, for the entire water heater, the water inlet flow rate and the target water outlet temperature are proportional to the heating power of the heat source object, and the water inlet temperature and the initial heating temperature are inversely proportional to the heating power of the heat source object. Therefore, the heating power of the heat source object can be determined based on the water inlet flow rate, the water inlet temperature, the target water outlet temperature and the initial heating temperature, so that the heating power of the heat source object is adapted to the required heating power, preventing the water temperature after heating from being higher or lower than the target water outlet temperature, and at the same time, the water can be quickly heated to the target water outlet temperature, so that it can be turned on and used immediately.

[0022] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 is a flow chart of a water heater control method provided by Embodiment 1 of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a water heater provided by Embodiment 1 of the present invention;

[0026] Figure 3 is a flow chart of a water heater control method provided by Embodiment 2 of the present invention;

[0027] Figure 4 This is a curve showing the relationship between heating power W and time t when a gas heating module is started, provided in the second embodiment of the present invention;

[0028] Figure 5 is a structural schematic diagram of another water heater provided in Embodiment 2 of the present invention;

[0029] Figure 6 is a structural diagram of a control module provided by Embodiment 3 of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of an electronic device provided in Embodiment 4 of the present invention.

[0031] Figure Number:

[0032] 10. Control module; 20. Pipeline; 30. Energy storage module; 40. Heat source module; 41. Gas heating module; 42. Electric heating module; 50. Solenoid valve; 60. Water pump; 70. Check valve; 21. Internal circulation pipeline. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] Embodiment 1

[0035] Figure 1 This is a flow chart of a water heater control method provided in Embodiment 1 of the present invention. This embodiment can be applied to automatically control a water heater including multiple heat source modules to achieve a target water outlet temperature. The water heater control method is applied to a control module in a water heater. Figure 2 A schematic diagram of a water heater structure is shown in FIG. Figure 2 As shown, the water heater is provided with a control module 10, a pipeline 20 and an energy storage module 30 and a heat source module 40 connected in series to the pipeline 20. The head and tail of the pipeline 20 are respectively connected to the water inlet K1 and the water outlet K2 of the water heater. The heat source module 40 includes an electric heating module 42 and a gas heating module 41. The gas heating module 41 is connected to the air inlet K3 of the water heater.

[0036] like Figure 1 As shown, the water heater control method includes:

[0037] S101, obtaining a water inlet flow rate, a water inlet temperature, and a target water outlet temperature of a water outlet of a water heater.

[0038] like Figure 2As shown, a plurality of temperature sensors S0, S1, S2, and S3 are arranged on the pipe 20, which are respectively located at the water inlet K1 of the water heater, the water inlet of the energy storage module 30 (or the water outlet of the gas heating module 41), the water outlet of the energy storage module 30 (or the water inlet of the electric heating module 42), and the water outlet K2 of the water heater. These temperature sensors are connected to the control module 10 ( Figure 2 The temperature sensor 10 receives the temperature signal and converts it into specific temperature data. Therefore, the control module 10 can obtain the temperature at the water inlet K1 of the water heater, the water inlet of the energy storage module 30, the water outlet of the energy storage module 30 and the water outlet K2 of the water heater. In this step, the water inlet temperature of the water inlet K1 of the water heater is mainly obtained through the temperature sensor.

[0039] It should be noted that in Figure 2 In the water heater shown, the heat source module 40 and the energy storage module 30 are both located on the pipe 20, close to the water outlet K2 of the water heater, so that the heated water can be output from the water outlet K2 as soon as possible for the user to use, avoiding heat loss during the transportation of hot water in the pipe 20 and lowering the water temperature, which affects the user experience; and the heat source module 40 and the energy storage module 30 are spaced apart by a short pipeline distance to reduce heat loss during the transportation of hot water in the pipe 20, and avoid the need to increase the heating power of the heat source module 40 due to heat loss, resulting in power loss. Optionally, the setting order of the heat source module 40 and the energy storage module 30 can be set according to actual needs, Figure 2 The setting order shown is only a preferred example and is not intended to be a limitation on the setting order.

[0040] The target water outlet temperature of the water outlet K2 is the water temperature required by the user when using water. Specifically, the water heater may be provided with an interactive module and an operation button, the interactive module is connected to the control module 10, the user may input the target water outlet temperature into the interactive module through the operation button, the interactive module receives the signal of the target water outlet temperature and sends it to the control module 10, and the interactive module may also be provided with a display interface, the display interface may set the target water outlet temperature set by the user, and may also display the temperature of the water outlet K2 of the water heater, so that the user may understand whether the temperature of the water outlet K2 of the water heater reaches the expected target water outlet temperature. Of course, if the user does not set the target water outlet temperature, the control module 10 may also use the default water outlet temperature as the target water outlet temperature, for example, the default water outlet temperature may be 60°C.

[0041] A solenoid valve 50 is provided at the water inlet of the pipe 20. The solenoid valve 50 realizes precise control of the water flow through the electromagnetic force principle and the hydraulic principle. The solenoid valve 50 includes a coil and a valve core. When the coil is energized, a magnetic field is generated, so that the valve core moves under the action of the magnetic force, thereby changing the valve opening and controlling the water flow. The solenoid valve 50 is connected to the control module 10 ( Figure 1 (not shown), the solenoid valve 50 can control the valve opening by the input voltage of the solenoid valve 50, and the water inlet of the pipe 20 is connected to the water inlet K1 of the water heater. Therefore, the controller 10 can determine the water inlet flow rate of the water inlet K1 of the water heater by the input voltage of the solenoid valve 50.

[0042] Optionally, a water pump 60 is further provided on the pipeline 20, and the water pump 60 is used to transport water in the pipeline 20 or increase water pressure.

[0043] S102, taking the water temperature after being heated by the energy storage module and before starting the heat source module as the initial heating temperature.

[0044] The energy storage module 30 mainly includes phase change materials, which can be organic materials such as paraffin and sea wave, or inorganic salt hydrates such as sulfates and chlorides. Phase change materials, also known as latent heat storage materials, use the phase change process of materials to absorb / release heat to achieve energy storage, and have the advantages of high energy storage density, stable output temperature and energy. The phase change material in the energy storage module 30 absorbs heat when it changes from solid to liquid to achieve heat storage, and releases heat when it changes from liquid to solid. The energy storage module 30 is connected in series to the pipeline 20 to heat the water flow in the pipeline 20. Optionally, in this embodiment, the phase change temperature of the phase change material is generally between 30-60°C.

[0045] The thermal conductivity of phase change materials is usually not high, and the heat exchange rate is low. Optionally, the interior of the energy storage module 30 is a spiral tube structure. The purpose of setting it as a spiral tube structure is to increase the heat exchange area between the water in the pipeline 20 and the energy storage module 30, extend the heating time, and improve the heat exchange effect.

[0046] The water temperature after being heated by the energy storage module 30 and before starting the heat source module 40 is the water temperature at the water outlet of the energy storage module 30. Figure 2 As shown, the temperature sensor S2 can measure the water temperature after being heated by the energy storage module 30 and before starting the heat source module 40, and use the water temperature as the initial heating temperature.

[0047] S103, determining a heat source object to be started from the heat source module based on the water inlet flow rate, the target water outlet temperature and the initial heating temperature.

[0048] The initial heating temperature is the temperature when the energy storage module 30 heats the water in the pipe 20 alone, but the heating capacity of the energy storage module 30 is limited. In the scenario where more bathing water is used, the initial heating temperature reached by the energy storage module 30 after heating is usually lower than the target water outlet temperature set by the user. The purpose of starting the heat source module 40 is to heat the water in the pipe 20 from the initial heating temperature to the target water outlet temperature. For the heat source module 40, the water inlet flow rate and the target water outlet temperature are proportional to the required heating power of the heat source module 40. The larger the water inlet flow rate and the higher the target water outlet temperature, the greater the required heating power. The initial heating temperature is inversely proportional to the required heating power of the heat source module 40. The higher the initial temperature, the smaller the required heating power. In the heat source module 40, the heating power of the gas heating module 41 is relatively large, and the heating power of the electric heating module 42 is relatively small. The two have a certain adjustable heating power range and the heating power range usually has an overlapping part. Therefore, a suitable heat source object can be selected from the heat source module 40 based on the water inlet flow rate, the target water outlet temperature and the initial heating temperature. It should be noted that the gas heating module 41 and the electric heating module 42 can be used as heat source objects separately or simultaneously to meet different heating power requirements.

[0049] S104. When there is a started heat source object, determine the heating power of the started heat source object based on the water inlet flow, water inlet temperature, target water outlet temperature and initial heating temperature so that the water temperature at the water outlet of the water heater reaches the target water outlet temperature.

[0050] After determining the heat source object to be started, for the entire water heater, the water inlet flow rate and the target water outlet temperature are directly proportional to the heating power of the heat source object, and the water inlet temperature and the initial heating temperature are inversely proportional to the heating power of the heat source object. Therefore, the heating power of the heat source object can be determined based on the water inlet flow rate, water inlet temperature, target water outlet temperature and initial heating temperature, so that the heating power of the heat source object is adapted to the required heating power, preventing the water temperature after heating from being higher or lower than the target water outlet temperature, and at the same time quickly heating the water to the target water outlet temperature.

[0051] The embodiment of the present invention provides a water heater control method, which is applied to a control module in a water heater, and the water heater is also provided with a pipeline and an energy storage module and a heat source module connected in series to the pipeline, and the heat source module includes an electric heating module and a gas heating module; the water heater control method includes: obtaining the water inlet flow rate, water inlet temperature and target water outlet temperature of the water inlet of the water heater; taking the water temperature after being heated by the energy storage module and before starting the heat source module as the initial heating temperature; determining the started heat source object from the heat source module based on the water inlet flow rate, the target water outlet temperature and the initial heating temperature; when there is a started heat source object, determining the heating power of the started heat source object based on the water inlet flow rate, the water inlet temperature, the target water outlet temperature and the initial heating temperature, so that the water temperature at the water outlet of the water heater reaches the target water outlet temperature. First, the water heater of the present invention includes an energy storage module, and the heat stored in the energy storage module can preheat the water in the pipeline, so that the initial heating temperature of the water in the pipeline increases and the heating power and heating time of the heat source module are reduced, and the water temperature at the water outlet of the water heater can quickly reach the target water outlet temperature, bringing a ready-to-use experience to the user. Second, for the heat source module, the water inlet flow rate and the target water outlet temperature are proportional to the required heating power of the heat source module, and the initial heating temperature is inversely proportional to the required heating power of the heat source module. Different heat source objects in the heat source module have different heating powers. Therefore, a suitable heat source object can be selected from the heat source module based on the water inlet flow rate, the target water outlet temperature and the initial heating temperature. After determining the heat source object to be started, for the entire water heater, the water inlet flow rate and the target water outlet temperature are proportional to the heating power of the heat source object, and the water inlet temperature and the initial heating temperature are inversely proportional to the heating power of the heat source object. Therefore, the heating power of the heat source object can be determined based on the water inlet flow rate, the water inlet temperature, the target water outlet temperature and the initial heating temperature, so that the heating power of the heat source object is adapted to the required heating power, preventing the water temperature after heating from being higher or lower than the target water outlet temperature, and also quickly heating the water to the target water outlet temperature.

[0052] Embodiment 2

[0053] Figure 3 This is a flow chart of a water heater control method provided in the second embodiment of the present invention. The embodiment of the present invention optimizes the method for determining the heat source object based on the above-mentioned first embodiment.

[0054] In this embodiment, set the water inlet flow rate Q0, the water inlet temperature T0, the target water outlet temperature Ts, the water inlet temperature T1 of the energy storage module 30 before starting the heat source object, the initial heating temperature T2, the water outlet temperature of the energy storage module 30 before starting the heat source object, the preset first flow rate Q1, and the preset second flow rate Q2.

[0055] like Figure 3 As shown, the water heater control method includes:

[0056] S301, obtaining the water inlet flow rate Q0, the water inlet temperature T0 and the target water outlet temperature Ts of the water outlet of the water heater.

[0057] S302, taking the water temperature after being heated by the energy storage module and before starting the heat source module as the initial heating temperature T2.

[0058] S301-S302 are similar to S101-S102 in the first embodiment. For details, please refer to the relevant contents of S101-S102, which will not be described in detail here.

[0059] When the water inlet flow rate Q0 is less than or equal to the preset first flow rate Q1, S303 is executed; when the water inlet flow rate Q0 is greater than the preset first flow rate Q1, S304 is executed.

[0060] S303: Determine that there is no started heat source object.

[0061] In the heat source module 40, the heating power of the gas heating module 41 is greater than that of the electric heating module 42, but the heating speeds of both are relatively fast. In order to prevent the pipeline 20 from burning dry, in this embodiment, a first flow rate Q1 is pre-set as a "threshold" flow rate for starting the electric heating module 42 with relatively small heating power, and a second flow rate Q2 is pre-set as a "threshold" flow rate for starting the gas heating module 41 with relatively large heating power. In other words, the water inlet flow rate Q0 must be at least greater than the first flow rate Q1 to start the electric heating module 42, and the water inlet flow rate Q0 must be at least greater than the second flow rate Q2 to start the gas heating module 41 (the electric heating module 42 may also be started at this time). Therefore, when the water inlet flow rate Q0 is less than or equal to the preset first flow rate Q1, it can be determined that there is no started heat source object.

[0062] The second flow rate Q2 is greater than the first flow rate Q1, and the water inlet flow rate Q0 is less than or equal to the preset first flow rate Q1, including the case where the water inlet flow rate Q0 is 0 when the water heater is in standby mode.

[0063] S304: When the water inlet flow rate Q0 is greater than the preset first flow rate Q1, the temperature difference between the target water outlet temperature Ts and the initial heating temperature T2 is calculated to obtain a first temperature difference value.

[0064] The first temperature difference value is the temperature difference between the target water outlet temperature Ts and the initial heating temperature T2, and is also positively correlated with the heating power of the heat source module 40. The smaller the first temperature difference value is, the smaller the required heating power of the heat source module 40 is, and the larger the first temperature difference value is, the larger the required heating power of the heat source module 40 is.

[0065] S305. When the water inlet flow rate Q0 is greater than the preset first flow rate Q1 and less than or equal to the preset second flow rate Q2, determine whether the first temperature difference value is less than the preset first temperature difference threshold value.

[0066] When the water inlet flow rate Q0 is less than or equal to the preset second flow rate Q2, the gas heating module 41 cannot be started, so in S303-S306, only whether to start the electric heating module 42 is considered.

[0067] If the first temperature difference value is greater than or equal to the preset first temperature difference threshold, execute S306;

[0068] If the first temperature difference value is less than the preset first temperature difference threshold, execute S303: determine that there is no started heat source object. As described above, the heating speed of the electric heating module 42 is relatively fast. If the first temperature difference value is less than the preset first temperature difference threshold, the temperature difference between the target water outlet temperature Ts and the initial heating temperature T2 is small. Even if the electric heating module 42 is started with the minimum heating power of the electric heating module 42, the water temperature after heating by the electric heating module 42 will exceed the target water outlet temperature Ts. Therefore, if the first temperature difference value is less than the preset first temperature difference threshold, it can be regarded that the energy storage module 30 stores water that can heat the water in the pipeline 20 to the target water outlet temperature Ts, and the water temperature of the water heated by the energy storage module 30 can basically meet the user's use needs, and there is no need to start the heat source object. Optionally, the first temperature difference threshold can be set to 3°C, which can be set according to actual needs.

[0069] S306: Determine that the activated heat source object is an electric heating module.

[0070] If the first temperature difference value is greater than or equal to the preset first temperature difference threshold, it is deemed that the heat stored in the energy storage module 30 is insufficient to heat the water in the pipe 20 to the target water outlet temperature Ts, and at this time the temperature difference between the target water outlet temperature Ts and the initial heating temperature T2 is large, and when the electric heating module 42 is started, the heated water temperature will not exceed the target water outlet temperature Ts, then it is determined that the started heat source object is the electric heating module 42.

[0071] S307: When the water inlet flow rate Q0 is greater than the preset second flow rate Q2, determine the heat source object to be started based on the first temperature difference value.

[0072] When the water inlet flow rate is greater than the preset second flow rate, the water inlet flow rate is greater than the "threshold" flow rate for starting the electric heating module 42 and the gas heating module 41 at the same time, then either one of them may be used as the heat source object, or both of them may be used as the heat source object. Specifically, the heating power of the heat source object to be started can be determined according to the first temperature difference value, which is proportional to the required heating power, and the heat source object is then determined based on the heating power. When the required heating power is only within the heating power range of the electric heating module 42, the electric heating module 42 can be selected as the heat source object to be started, and when the required heating power is only within the heating power range of the gas heating module 41, the gas heating module 41 can be selected as the heat source object to be started; when the heating power is within the power range of both the electric heating module 42 and the gas heating module 41, given that the cost of gas heating is usually lower than that of electric heating, the gas heating module 41 is preferentially used as the heat source object to be started.

[0073] In an optional example, determining the heat source object to be started based on the first temperature difference value includes: when the water inlet flow rate Q0 is greater than a preset second flow rate Q2, determining that the heat source objects to be started are the gas heating module 41 and the electric heating module 42.

[0074] In this example, when the water inlet flow rate Q0 is greater than the preset second flow rate Q2, both the gas heating module 41 and the electric heating module 42 are directly used as heat source objects. The reason is that for the electric heating module 42, the heating power can be increased to its set target heating power in a shorter time, but for the gas heating module 41, Figure 4 As shown, Figure 4 The relationship curve between heating power W and time t when a gas heating module is started is shown in Figure 4 Taking the relationship between W0 and t0 in as an example, when the gas heating module 41 is started, its heating power does not immediately reach its set target heating power W0, but gradually increases to the target heating power W0, which takes t0. This phenomenon is called power climbing. This gradually increasing heating power is to ensure that the water heater can reach the set working state smoothly and safely, while avoiding excessive load pressure on the household circuit. Obviously, during the t0 time of power climbing, the actual heating power of the gas heating module 41 is small and less than its set target heating power W0. If the gas heating module 41 is started alone, the required target heating power W0 cannot be reached. Therefore, when the gas heating module 41 is used together with the electric heating module 42, it can be avoided that the water outlet temperature of the water heater is far lower than the target water outlet temperature Ts for a period of time when the gas heating module 41 is started alone, which affects the user's water experience. Of course, when the gas heating module 41 and the electric heating module 42 are turned on at the same time, the heating power of the two modules needs to be adjusted separately so that the sum of the heating power meets the heating demand.

[0075] In another optional example, determining the heat source object to be started based on the first temperature difference value also includes: when the water inlet flow Q0 is greater than the preset second flow Q2, if the first temperature difference value is less than the preset first temperature difference threshold, then determining that the heat source object to be started is the gas heating module 41; if the first temperature difference value is greater than or equal to the preset first temperature difference threshold, then determining that the heat source object to be started is the gas heating module 41 and the electric heating module 42.

[0076] In this example, the first temperature difference value is used as a consideration for determining the heat source object. If the first temperature difference value is less than the preset first temperature difference threshold value, that is, the initial heating temperature is close to the target water outlet temperature Ts, it is considered that the required heating power is small, and the heating power of the smaller gas heating module 41 can meet the power demand. Then according to Figure 4 It can be known that when the target heating power set by the gas heating module 41 is W0, W1 and W0<W1, the corresponding power climbing time is t0, t1 and t0<t1. Therefore, even if there is a power climbing phenomenon, the time required for the power climbing of the smaller target heating power of the gas heating module 41 is also smaller. After the gas heating module 41 is turned on, the temperature difference between the water temperature after heating by the gas heating module 41 and the energy storage module 30 and the target water outlet temperature Ts is small and the time of the temperature difference is also very short. Therefore, there is no need to use the electric heating module 42 for auxiliary heating, and the power climbing stage of the gas heating module 41 can be transitioned.

[0077] S308. When there is a started heat source object, the heating power of the started heat source object is determined based on the water inlet flow Q0, the water inlet temperature T0, the target water outlet temperature Ts and the initial heating temperature T2, so that the water temperature at the water outlet of the water heater reaches the target water outlet temperature Ts.

[0078] S308 specifically includes: determining the total heating power of the water heater based on the water inlet flow rate Q0, the water inlet temperature T0 and the target water outlet temperature Ts, and obtaining a first total heating power W1; at this time, the temperature of the water outlet of the energy storage module 30 is the initial heating temperature T2, obtaining the water temperature difference (T2-T1) between the water outlet and the water inlet of the energy storage module 30, T1 is the water inlet temperature of the energy storage module 30 before starting the heat source object, and calculating the heating power We of the energy storage module 30 based on the water temperature difference (T2-T1) between the water outlet and the water inlet of the energy storage module 30 and the water inlet flow rate Q0; calculating the first total heating power W1 and the heating power of the energy storage module 30. The difference between the rate We is used to obtain the second total heating power W2 of the started heat source object; when the heat source object is one of the electric heating module 42 or the gas heating module 41, the second total heating power W2 is used as the heating power of the heat source object; when the heat source object is the electric heating module 42 and the gas heating module 41, the gas heating module 41 is controlled to operate according to a preset combustion power curve, so that the heating power of the gas heating module 41 gradually increases to the second total heating power W2, and the electric heating module 42 is controlled to perform auxiliary heating, so that the sum of the heating powers of the electric heating module 42 and the gas heating module 41 is the second total heating power W2.

[0079] Wherein, the first total heating power W1=Q0*C*(Ts-T0)), C is the specific heat capacity of water;

[0080] The heating power of the energy storage module 30 is We=Q0*C*(T2-T1);

[0081] The second total heating power W2 = W1 - We.

[0082] When calculating the total heating power of the heat source object, the heating power of the energy storage module 30 is taken into account, so that the heat stored in the energy storage module 30 can be effectively utilized to reduce the heating power consumption of the heat source object.

[0083] Among them, the heating method of the electric heating module 42 is resistance heating, and the resistance in the electric heating module 42 can be linearly adjusted, so its heating power can also be linearly adjusted. Optionally, the heating power of the electric heating module 42 varies linearly between 0-3kW.

[0084] When the heat source objects are the electric heating module 42 and the gas heating module 41, the gas heating module 41 is controlled to operate according to the preset combustion power curve, so that the heating power of the gas heating module 41 gradually increases to the second total heating power W2, and the electric heating module 42 is controlled to perform auxiliary heating, that is, to assist the gas heating module 41 in the transition power ramping stage. Figure 4 To explain, Figure 4As shown, the combustion power curve of the gas heating module 41 is relatively fixed, that is, in the power ramping stage, the power W corresponding to each time point t is relatively fixed. Therefore, the real-time heating power of the gas heating module 41 at each moment can be calculated based on the preset combustion power curve and the time of starting the gas heating module 41. Assuming that the real-time heating power of the gas heating module 41 is Wg, the real-time heating power of the electric heating module 42 is Wr=W2-Wg. When the heating power of the gas heating module 41 reaches the second total heating power W2, the electric heating module 42 can be turned off to reduce the power consumption of electric heating and the electricity cost.

[0085] It should be noted that when the heat source object is only the gas heating module 41, the gas heating module 41 is also controlled to operate according to the preset combustion power curve so that the heating power of the gas heating module 41 gradually increases to the second total heating power W2. However, as described earlier, only when the first temperature difference value is small, it is determined that the heat source object is only the gas heating module 41. The first temperature difference value is the temperature difference between the target water outlet temperature and the initial heating temperature. The smaller the first temperature difference value is, the smaller the required heating power of the gas heating module 41 is, and the corresponding power ramp time is also shorter. In general, when the temperature difference is small and the time of the temperature difference is short, it basically does not affect the user's water experience. In this case, only the gas heating module 41 can be used as the heat source object, which can avoid the problem of high power consumption of electric heating and reduce the electricity cost of electric heating.

[0086] S309: When the heat source object includes an electric heating module and a gas heating module, after the gas heating module and the electric heating module are turned on, the water temperature at the water inlet of the electric heating module is obtained.

[0087] Among them, Figure 2 As shown, along the water flow direction of the pipeline 20, the gas heating module 41, the energy storage module 30 and the electric heating module 42 are arranged in sequence, and the water outlet of the electric heating module 42 is connected to the water outlet K2 of the water heater.

[0088] S310: When the water temperature at the water inlet of the electric heating module is equal to the target water outlet temperature Ts, the electric heating module is controlled to be turned off.

[0089] As mentioned before, given that the cost of gas heating is usually lower than that of electric heating, the gas heating module 41 is preferentially used as the heat source object for startup, and when the heat source object includes the electric heating module 42 and the gas heating module 41, the main consideration is to use the electric heating module 42 to assist the gas heating module 41 in the transition power ramping stage. The water outlet of the electric heating module 42 is connected to the water outlet of the water heater, so the water temperature after being heated by the electric heating module 42 is the water temperature at the water outlet of the water heater. When the water temperature at the water inlet of the electric heating module 42 is equal to the target water outlet temperature, it means that the water heated by the energy storage module 30 and the gas heating module 41 has reached the target water outlet temperature. At this time, the gas heating module 41 has completed the power ramping and reached its set heating power, and the electric heating module 42 is no longer needed for heating assistance, so the electric heating module 42 can be controlled to be turned off.

[0090] In this embodiment, when determining the heat source object to be started from the heat source module 40 based on the water inlet flow rate Q0, the target water outlet temperature Ts and the initial heating temperature T2, considering that the heating speeds of the electric heating module 42 and the gas heating module 41 are relatively fast, in order to avoid dry burning of the pipeline 20, "threshold" flows are set for turning on the electric heating module 42 and the gas heating module 41, namely the first flow rate Q1 and the second flow rate Q2, respectively. The heat source objects are screened based on the threshold flow rates, and the heat source object to be started is determined based on the first temperature difference between the target water outlet temperature Ts and the initial heating temperature T2, so that the heating power of the heat source object can be adapted to the heating power required to heat the water in the pipeline 20 from the initial heating temperature T2 to the target water outlet temperature Ts.

[0091] In an optional embodiment, after controlling the electric heating module 42 to turn off, it also includes: obtaining the real-time temperature of the water outlet of the water heater, calculating the difference between the real-time temperature of the water outlet of the water heater and the target water outlet temperature Ts, and obtaining a second temperature difference value; judging whether the second temperature difference value is greater than a preset second temperature difference threshold and the duration reaches a preset first duration; if so, determining that the energy storage module 30 is in a heat absorption state, and turning on the electric heating module 42 for auxiliary heating, so that the real-time temperature of the water outlet of the water heater is equal to the target water outlet temperature Ts.

[0092] Controlling the electric heating module 42 to turn off is to determine that the heating power of the gas heating module 41 and the energy storage module 30 has reached the required total heating power, but the energy storage module 30 mainly includes phase change materials, and the heat stored therein also changes with time, that is, the heating power of the energy storage module 30 also changes with time, and the phase change material absorbs heat when changing from solid to liquid. Therefore, when it is found that the second temperature difference value is greater than the preset second temperature difference threshold and the duration reaches the preset first duration, it means that the heating power of the gas heating module 41 and the energy storage module 30 is less than the total heating power. At this time, the energy storage module 30 is usually in a heat absorption state. Therefore, it is necessary to turn on the electric heating module 42 for auxiliary heating so that the real-time temperature of the water outlet of the water heater is equal to the target water outlet temperature Ts. Among them, the second temperature difference value can be set according to actual needs.

[0093] In an optional embodiment, if Figure 5 As shown, Figure 5 is a schematic diagram of the structure of another water heater, the pipeline 20 includes an internal circulation pipeline 21 ( Figure 5 The energy storage module 30 and the heat source module 40 are arranged on the inner circulation pipe 21. The inner circulation pipe 21 is used to circulate and heat the hot water. This is because when the water heater is on standby (the water inlet K1 and the water outlet K2 of the water heater are closed at this time), the water standing in the water pipe will be at a lower temperature due to heat loss. If the inner circulation pipe 21 is not provided, when the water heater is working (the water inlet K1 and the water outlet K2 of the water heater are closed at this time), it takes time to drain the cold water, and it is not possible to achieve instant heating, which affects the user experience. There are many overlapping parts between the inner circulation pipe 21 and the pipes used when the water heater is working, and the energy storage module 30, the heat source module 40 and the water pump 60 can also be shared. A one-way valve 70 is arranged on the inner circulation pipe 21, and the one-way valve 70 can also be connected to the control module 10, so that the control module 10 can control the opening and closing of the one-way valve 70. The one-way valve 70 is that the fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back. Optionally, the water inlet of the one-way valve 70 is connected to the electric heating module 42, and the water outlet is connected to the solenoid valve 50. At this time, the water flow direction in the inner circulation pipe 21 is the same as the water flow direction in the pipe 20 when the water heater is working normally. However, the one-way valve 70 in the inner circulation pipe 21 is usually opened only when the water heater is on standby. Therefore, the water inlet of the one-way valve 70 can also be connected to the solenoid valve 50, and the water outlet is connected to the electric heating module 42. At this time, the water flow direction in the inner circulation pipe 21 is opposite to the water flow direction in the pipe 20 when the water heater is working normally. The water inlet and water outlet of the one-way valve 70 can be set according to actual needs.

[0094] The water heater control method also includes: when there is no heat source object to be started, calculating the water temperature difference between the water outlet and the water inlet of the energy storage module 30 (i.e., T2-T1) to obtain a third temperature difference; if the third temperature difference is less than the preset third temperature difference threshold and the duration exceeds the preset second duration, determining that the energy storage module 30 is in an overcooling state; judging whether the current time belongs to the preset electricity price valley stage; if so, calculating the heating power of the electric heating module 42 required to heat the water in the inner circulation pipe 21 from the initial heating temperature to the preset inner circulation standard temperature, and obtaining the inner circulation power; controlling the water pump 60 on the inner circulation pipe 21 to open and controlling the electric heating module 42 to start with the inner circulation power to supplement the energy storage module 30 with heat. Optionally, the third temperature difference threshold is 1°C.

[0095] When there is no heat source object to start, the water heater is usually in standby mode. The heating power of the energy storage module 30 can be determined according to the third temperature difference value. When the third temperature difference value is less than the preset third temperature difference threshold, it means that the heating power of the energy storage module 30 is low or in a heat absorption state. If the third temperature difference value is less than the preset third temperature difference threshold and the duration exceeds the preset second duration, it is determined that the energy storage module 30 is in an overcooling state, and the energy storage module 30 can be supplemented with heat energy at this time. Supplementing heat to the energy storage module 30 when the current time belongs to the preset electricity price valley stage can save electricity costs. Specifically, the water in the inner circulation pipe 21 is heated by starting the electric heating module 42, and the energy storage module 30 absorbs heat from the water in the inner circulation pipe 21 to achieve heat supplement. Specifically, the water pump 60 on the inner circulation pipe 21 can be controlled to open and the electric heating module 42 can be controlled to start with the inner circulation power, and the electric heating module 42 can be controlled to be turned off after a preset heating time. The preset heating time can be set according to the heat absorption performance parameters of the energy storage module 30, so that after the electric heating module 42 is turned on for the preset heating time, the energy storage module 30 can complete the energy storage process. After turning off the electric heating module 42, the energy storage module 30 can continue to maintain the water temperature of the water in the inner circulation pipe 21 at the inner circulation standard temperature for a period of time. When the user uses water, the temperature difference between the water temperature of the water in the inner circulation pipe 21 and the target water outlet temperature Ts can be reduced, and it can be quickly heated to the target water outlet temperature Ts, thereby improving the user's water use experience. The valley stage of electricity prices is usually from late night to early morning. The gas heating module 41 makes a lot of noise when running, but the electric heating module 42 makes very little noise when running. Therefore, using the electric heating module 42 to supplement the energy storage module 30 during the valley stage of electricity prices can achieve a silent heating effect and enhance the user experience.

[0096] Optionally, the electricity price valley stage is 0:00-6:00, which can be set according to actual conditions.

[0097] Optionally, the solenoid valve 50 is a three-way solenoid valve, the valve body includes three channels, namely, an inlet channel, an outlet channel and an intermediate channel, the three channels are cross-connected, the inlet channel of the solenoid valve 50 is connected to the water inlet K1 of the water heater, the outlet channel is connected to the water pump 60, and the intermediate channel is connected to the one-way valve 70. When the water heater is working, the inlet channel and the outlet channel of the solenoid valve 50 are opened, and when the water heater is on standby and enters the internal circulation, the intermediate channel and the outlet channel of the solenoid valve 50 are opened, so only one solenoid valve 50 is needed to meet all the use requirements of the pipeline 20 at the same time.

[0098] Embodiment 3

[0099] A water heater is provided in the third embodiment of the present invention. The water heater control device includes a control module, a pipeline, and an energy storage module and a heat source module connected in series to the pipeline. The heat source module includes an electric heating module and a gas heating module. For details, please refer to the first embodiment. Figure 2 , Figure 5 and Figure 2 , Figure 5 Relevant description content.

[0100] Figure 6 This is a schematic diagram of the structure of a control module provided in Embodiment 3 of the present invention. Figure 6 As shown, the control module includes:

[0101] The information acquisition submodule 601 is used to obtain the water inlet flow rate, water inlet temperature and target water outlet temperature of the water inlet of the water heater;

[0102] An initial heating temperature acquisition submodule 602 is used to take the water temperature after being heated by the energy storage module and before starting the heat source module as the initial heating temperature;

[0103] A start-up heat source object determination submodule 603 is used to determine a start-up heat source object from the heat source module based on the water inlet flow rate, the target water outlet temperature and the initial heating temperature;

[0104] The heating power setting submodule 604 is used to determine the heating power of the started heat source object based on the water inlet flow, the water inlet temperature, the target water outlet temperature and the initial heating temperature when there is a started heat source object, so that the water temperature at the water outlet of the water heater reaches the target water outlet temperature.

[0105] Optionally, the starting heat source object determination submodule 603 includes:

[0106] A first heat source object determination unit, configured to determine a non-activated heat source object when the water inlet flow rate is less than or equal to a preset first flow rate;

[0107] a first temperature difference value calculation unit, configured to calculate the temperature difference between the target water outlet temperature and the initial heating temperature to obtain a first temperature difference value when the water inlet flow rate is greater than a preset first flow rate;

[0108] A first temperature difference judgment unit, used for judging whether the first temperature difference is less than a preset first temperature difference threshold when the water inlet flow rate is greater than a preset first flow rate and less than or equal to a preset second flow rate;

[0109] A second heat source object determining unit, configured to determine that there is no started heat source object if the first temperature difference value is less than a preset first temperature difference threshold;

[0110] a third heat source object determining unit, configured to determine that the activated heat source object is the electric heating module if the first temperature difference value is greater than or equal to a preset first temperature difference threshold;

[0111] a fourth heat source object determining unit, configured to determine a heat source object to be started based on the first temperature difference when the water inlet flow rate is greater than a preset second flow rate;

[0112] Wherein, the second flow rate is greater than the first flow rate.

[0113] Optionally, the fourth heat source object determining unit includes:

[0114] A first heat source object determination unit is used to determine that the heat source objects to be started are the gas heating module and the electric heating module when the water inlet flow rate is greater than a preset second flow rate;

[0115] or,

[0116] The second heat source object determination unit is used to determine that the heat source object to be started is the gas heating module when the water inlet flow rate is greater than a preset second flow rate, if the first temperature difference value is less than a preset first temperature difference threshold value; if the first temperature difference value is greater than or equal to the preset first temperature difference threshold value, then determine that the heat source objects to be started are the gas heating module and the electric heating module.

[0117] Optionally, the heating power setting submodule 604 includes:

[0118] a first total heating power calculation unit, configured to determine the total heating power of the water heater based on the inlet water flow rate, the inlet water temperature and the target outlet water temperature, to obtain a first total heating power;

[0119] An energy storage heating power calculation unit, used to calculate the heating power of the energy storage module based on the initial heating temperature, the water temperature difference at the water inlet of the energy storage module, and the water inlet flow rate;

[0120] a second total heating power calculation unit, configured to calculate a difference between the first total heating power and the heating power of the energy storage module, and obtain a second total heating power of the activated heat source object;

[0121] a first heating power setting unit, configured to use the second total heating power as the heating power of the heat source object when the heat source object is one of the electric heating module or the gas heating module;

[0122] The second heating power setting unit is used to control the operation of the gas heating module according to a preset combustion power curve when the heat source objects are the electric heating module and the gas heating module, so that the heating power of the gas heating module gradually increases to the second total heating power, and control the electric heating module to perform auxiliary heating so that the sum of the heating powers of the electric heating module and the gas heating module is the second total heating power.

[0123] Optionally, along the water flow direction of the pipeline, the gas heating module, the energy storage module and the electric heating module are arranged in sequence, and the water outlet of the electric heating module is connected to the water outlet of the water heater;

[0124] When the heat source object includes the electric heating module and the gas heating module, the control module further includes:

[0125] A pre-electric heating temperature determination submodule, used for obtaining the water temperature at the water inlet of the electric heating module after the gas heating module and the electric heating module are turned on;

[0126] The electric heating off control submodule is used to control the electric heating module to be off when the water temperature at the water inlet of the electric heating module is equal to the target water outlet temperature.

[0127] Optionally, the control module further includes:

[0128] A submodule for determining the real-time temperature of the water outlet, used for obtaining the real-time temperature of the water outlet of the water heater after the electric heating module is controlled to be turned off;

[0129] A second temperature difference calculation submodule, used for calculating the difference between the real-time temperature of the water outlet of the water heater and the target water outlet temperature, to obtain a second temperature difference;

[0130] A second temperature difference duration judgment submodule is used to judge whether the second temperature difference is greater than a preset second temperature difference threshold and the duration reaches a preset first duration; if so, the auxiliary heating submodule is executed;

[0131] The auxiliary heating submodule is used to determine that the energy storage module is in a heat absorption state, and turn on the electric heating module for auxiliary heating, so that the real-time temperature of the water outlet of the water heater is equal to the target water outlet temperature.

[0132] Optionally, the pipeline includes an inner circulation pipeline, and the energy storage module and the heat source module are arranged on the inner circulation pipeline; the control module further includes:

[0133] A third temperature difference value determination submodule, configured to calculate the water temperature difference between the water outlet and the water inlet of the energy storage module when the heat source object is not started, to obtain a third temperature difference value;

[0134] A third temperature difference duration submodule, configured to determine that the energy storage module is in an overcooling state if the third temperature difference is less than a preset third temperature difference threshold and the duration exceeds a preset second duration;

[0135] The electricity price valley stage judgment submodule is used to judge whether the current time belongs to the preset electricity price valley stage; if so, the content of the inner loop power determination submodule is executed;

[0136] An inner circulation power determination submodule, used to calculate the heating power of the electric heating module required to heat the water in the inner circulation pipeline from the initial heating temperature to a preset inner circulation standard temperature, so as to obtain the inner circulation power;

[0137] The heat supplement submodule is used to control the water pump on the internal circulation pipeline to turn on and control the electric heating module to start with the internal circulation power to supplement the energy storage module with heat.

[0138] The water heater control device provided in the embodiment of the present invention can execute the water heater control method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0139] Embodiment 4

[0140] Figure 7 A schematic diagram of an electronic device 70 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0141] like Figure 7As shown, the electronic device 70 includes at least one processor 71, and a memory connected to the at least one processor 71, such as a read-only memory (ROM) 72, a random access memory (RAM) 73, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 71 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 72 or the computer program loaded from the storage unit 78 to the random access memory (RAM) 73. In the RAM 73, various programs and data required for the operation of the electronic device 70 can also be stored. The processor 71, the ROM 72, and the RAM 73 are connected to each other via a bus 74. An input / output (I / O) interface 75 is also connected to the bus 74.

[0142] A number of components in the electronic device 70 are connected to the I / O interface 75, including: an input unit 76, such as a keyboard, a mouse, etc.; an output unit 77, such as various types of displays, speakers, etc.; a storage unit 78, such as a disk, an optical disk, etc.; and a communication unit 79, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 79 allows the electronic device 70 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0143] The processor 71 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 71 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 71 executes the various methods and processes described above, such as a water heater control method.

[0144] In some embodiments, the water heater control method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 78. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 70 via the ROM 72 and / or the communication unit 79. When the computer program is loaded into the RAM 73 and executed by the processor 71, one or more steps of the water heater control method described above may be performed. Alternatively, in other embodiments, the processor 71 may be configured to perform the water heater control method in any other suitable manner (e.g., by means of firmware).

[0145] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0146] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0147] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0148] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0149] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0150] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0151] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0152] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water heater control method, characterized in that: The control module is applied to the water heater, and the water heater is also provided with a pipeline and an energy storage module and a heat source module connected in series to the pipeline, and the heat source module includes an electric heating module and a gas heating module; the water heater control method includes: Obtaining the water inlet flow rate, water inlet temperature and target water outlet temperature of the water inlet of the water heater; The water temperature after being heated by the energy storage module and before starting the heat source module is used as the initial heating temperature; Determining a heat source object to be started from the heat source module based on the water inlet flow rate, the target water outlet temperature and the initial heating temperature; When there is a started heat source object, the heating power of the started heat source object is determined based on the water inlet flow, the water inlet temperature, the target water outlet temperature and the initial heating temperature so that the water temperature at the water outlet of the water heater reaches the target water outlet temperature.

2. A water heater control method according to claim 1, characterized in that: The step of determining the heat source object to be started from the heat source module based on the water inlet flow rate, the target water outlet temperature and the initial heating temperature comprises: When the water inlet flow rate is less than or equal to a preset first flow rate, determining that there is no started heat source object; When the water inlet flow rate is greater than a preset first flow rate, calculating the temperature difference between the target water outlet temperature and the initial heating temperature to obtain a first temperature difference value; When the water inlet flow rate is greater than a preset first flow rate and less than or equal to a preset second flow rate, determining whether the first temperature difference value is less than a preset first temperature difference threshold value; If so, determine that there is no activated heat source object; If not, determining that the activated heat source object is the electric heating module; When the water inlet flow rate is greater than a preset second flow rate, determining a heat source object to be started based on the first temperature difference value; Wherein, the second flow rate is greater than the first flow rate.

3. A water heater control method as claimed in claim 2, characterized in that: When the water inlet flow rate is greater than a preset second flow rate, determining the heat source object to be started based on the first temperature difference value includes: When the water inlet flow rate is greater than a preset second flow rate, determining that the heat source objects to be started are the gas heating module and the electric heating module; or, When the water inlet flow rate is greater than the preset second flow rate, if the first temperature difference value is less than the preset first temperature difference threshold, it is determined that the heat source object to be started is the gas heating module; if the first temperature difference value is greater than or equal to the preset first temperature difference threshold, it is determined that the heat source object to be started is the gas heating module and the electric heating module.

4. A water heater control method according to claim 1, characterized in that: When there is the activated heat source object, determining the heating power of the activated heat source object based on the inlet water flow rate, the inlet water temperature, the target outlet water temperature and the initial heating temperature includes: Determine the total heating power of the water heater based on the water inlet flow rate, the water inlet temperature and the target water outlet temperature to obtain a first total heating power; Calculating the heating power of the energy storage module based on the initial heating temperature, the water temperature difference of the water inlet of the energy storage module, and the water inlet flow rate; Calculating the difference between the first total heating power and the heating power of the energy storage module to obtain a second total heating power of the activated heat source object; When the heat source object is one of the electric heating module or the gas heating module, the second total heating power is used as the heating power of the heat source object; When the heat source objects are the electric heating module and the gas heating module, the gas heating module is controlled to operate according to a preset combustion power curve so that the heating power of the gas heating module gradually increases to the second total heating power, and the electric heating module is controlled to perform auxiliary heating so that the sum of the heating powers of the electric heating module and the gas heating module is the second total heating power.

5. A water heater control method according to any one of claims 1 to 4, characterized in that: Along the water flow direction of the pipeline, the gas heating module, the energy storage module and the electric heating module are arranged in sequence, and the water outlet of the electric heating module is connected to the water outlet of the water heater; When the heat source object includes the electric heating module and the gas heating module, after determining the heating power of the started heat source object based on the water inlet flow rate, the water inlet temperature, the target water outlet temperature and the initial heating temperature, the method further includes: After the gas heating module and the electric heating module are turned on, obtaining the water temperature at the water inlet of the electric heating module; When the water temperature at the water inlet of the electric heating module is equal to the target water outlet temperature, the electric heating module is controlled to be turned off.

6. A water heater control method as claimed in claim 5, characterized in that: After controlling the electric heating module to be turned off, the method further includes: Obtaining the real-time temperature of the water outlet of the water heater; Calculating the difference between the real-time temperature of the water outlet of the water heater and the target water outlet temperature to obtain a second temperature difference value; Determine whether the second temperature difference value is greater than a preset second temperature difference threshold and the duration reaches a preset first duration; If so, it is determined that the energy storage module is in a heat absorption state, and the electric heating module is turned on for auxiliary heating, so that the real-time temperature of the water outlet of the water heater is equal to the target water outlet temperature.

7. A water heater control method according to any one of claims 1 to 4, characterized in that: The pipeline includes an inner circulation pipeline, and the energy storage module and the heat source module are arranged on the inner circulation pipeline; the water heater control method further includes: When the heat source object is not started, calculating the water temperature difference between the water outlet and the water inlet of the energy storage module to obtain a third temperature difference value; If the third temperature difference value is less than a preset third temperature difference threshold value and the duration exceeds a preset second duration, it is determined that the energy storage module is in an overcooling state; Determine whether the current time belongs to the preset electricity price valley stage; If yes, calculate the heating power of the electric heating module required to heat the water in the inner circulation pipeline from the initial heating temperature to the preset inner circulation standard temperature to obtain the inner circulation power; The water pump on the inner circulation pipeline is controlled to be turned on and the electric heating module is controlled to be started with the inner circulation power to supplement the heat for the energy storage module.

8. A water heater, characterized in that: It includes a control module, a pipeline, and an energy storage module and a heat source module connected in series to the pipeline. The heat source module includes an electric heating module and a gas heating module. The control module includes: An information acquisition submodule, used to acquire the water inlet flow rate, water inlet temperature and target water outlet temperature of the water inlet of the water heater; An initial heating temperature acquisition submodule, used to take the water temperature after being heated by the energy storage module and before starting the heat source module as the initial heating temperature; A start-up heat source object determination submodule is used to determine a start-up heat source object from the heat source module based on the water inlet flow rate, the target water outlet temperature and the initial heating temperature; The heating power setting submodule is used to determine the heating power of the started heat source object based on the water inlet flow, the water inlet temperature, the target water outlet temperature and the initial heating temperature when there is a started heat source object, so that the water temperature at the water outlet of the water heater reaches the target water outlet temperature.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the water heater control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the water heater control method according to any one of claims 1 to 7 when executed.

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