Control method of water heater, water heater, electronic equipment and storage medium

Abstract

The invention discloses a control method of a water heater, the water heater, electronic equipment and a storage medium, and relates to the technical field of household appliances. The method comprises the steps that the water inlet flow of a water inlet of the water heater and the set water outlet temperature of a water outlet are obtained; based on the water inlet flow, the working state of the gas heating module is determined; based on the internal pressure of the energy storage module, a to-be-started heat source object is determined from the auxiliary heating module, and the to-be-started heat source object is the energy storage module or the electric heating module; heating power of the to-be-started heat source object is obtained, a pipeline where the to-be-started heat source object is located is conducted, and the to-be-started heat source object is controlled to be matched with the working state of the gas heating module to conduct heating work based on the heating power of the to-be-started heat source object so that the water temperature of a water outlet of the water heater can reach the set water outlet temperature. And the water temperature at the water outlet of the water heater reaches the set water outlet temperature. The starting frequency of a heating part in the water heater can be reduced while the outlet water temperature of the water heater is guaranteed, and the service life of the water heater is prolonged.

Description

Technical Field

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

[0002] Gas water heaters are commonly used household appliances in people's lives. Therefore, the performance of gas water heaters is of great concern to home appliance R&D personnel.

[0003] 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. 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. However, the user's water use is random. If the user frequently uses small amounts of water, the gas heating component will need to be turned on and off repeatedly in a short period of time, which will not only generate a large noise when the equipment is running, but also affect the service life of the gas heating component. Summary of the invention

[0004] The present invention provides a control method for a water heater, a water heater, an electronic device and a storage medium, which can reduce the start-up frequency of a gas heating component and / or an electric heating component while ensuring the outlet water temperature, thereby extending the service life of the heating component and improving the user experience.

[0005] According to one aspect of the present invention, a control method for a water heater is provided. The method is applied to a control module in the water heater. The water heater is also provided with a pipeline and a gas heating module and an auxiliary heating module connected in series to the pipeline. The auxiliary heating module includes an energy storage module and an electric heating module deployed in parallel. The method specifically includes:

[0006] Obtain the water flow rate of the water inlet of the water heater and the set water outlet temperature of the water outlet;

[0007] Based on the water inlet flow rate, determining the working state of the gas heating module, wherein the working state is starting heating or stopping heating;

[0008] Based on the internal pressure of the energy storage module, determining a heat source object to be started from the auxiliary heating module, wherein the heat source object to be started is an energy storage module or an electric heating module;

[0009] Determining the heating power of the heat source object to be started, wherein the heating power is the heating power of the energy storage module or the heating power of the electric heating module;

[0010] The pipeline where the heat source object to be started is located is turned on, and the heat source object to be started is controlled to perform heating work based on the heating power of the heat source object to be started and the working state of the gas heating module, so that the water temperature at the outlet of the water heater reaches the set water outlet temperature.

[0011] According to another aspect of the present invention, a water heater is provided, the water heater comprising a control module, a pipeline, and a gas heating module and an auxiliary heating module connected in series to the pipeline, the auxiliary heating module comprising an energy storage module and an electric heating module deployed in parallel, and the control module comprising:

[0012] An information acquisition unit, used to acquire the water inlet flow rate of the water inlet of the water heater and the set water outlet temperature of the water outlet;

[0013] A working state determination unit, used for determining the working state of the gas heating module based on the water inlet flow rate;

[0014] a heat source object determining unit, configured to determine a heat source object to be started from the auxiliary heating module based on the internal pressure of the energy storage module, wherein the heat source object to be started is an energy storage module or an electric heating module;

[0015] A heating power determination unit, used to determine the heating power of the heat source object to be started;

[0016] The heating work execution unit is used to conduct the pipeline where the heat source object to be started is located, and control the heat source object to be started to perform heating work based on its heating power and the working state of the gas heating module, so that the water temperature at the outlet of the water heater reaches the set water outlet temperature.

[0017] According to another aspect of the present invention, there is provided an electronic device, the electronic device comprising:

[0018] at least one processor; and a memory communicatively coupled to the at least one processor;

[0019] The memory stores a computer program that can be executed by at least one processor, and the computer program is executed by at least one processor so that the at least one processor can execute the control method of the water heater in any embodiment of the present invention.

[0020] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein 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 in any embodiment of the present invention when executed.

[0021] According to another aspect of the present invention, a computer program product is provided. The computer program product includes a computer program. When the computer program is executed by a processor, the control method of the water heater according to any embodiment of the present invention is implemented.

[0022] The control method of the water heater of the present invention is applied to a control module in the water heater, and the water heater is also provided with a pipeline and a gas heating module and an auxiliary heating module connected in series to the pipeline, and the auxiliary heating module includes an energy storage module and an electric heating module deployed in parallel; the method specifically comprises: obtaining a water inlet flow rate at a water inlet of the water heater and a set water outlet temperature at a water outlet; determining a working state of the gas heating module based on the water inlet flow rate; determining a heat source object to be started from the auxiliary heating module based on the internal pressure of the energy storage module; determining the heating power of the heat source object to be started; switching on the pipeline where the heat source object to be started is located, and controlling the heat source object to be started based on Its heating power cooperates with the working state of the gas heating module to perform heating work so that the water temperature at the water outlet of the water heater reaches the set water outlet temperature; that is, the present invention will determine the heating method of the water heater according to the water inlet flow rate of the water heater and the set water outlet temperature. The heating method includes determining the start-up order of the gas heating module, energy storage module, and electric heating module of the water heater and the working information of the gas heating module, energy storage module, and electric heating module, while ensuring the water outlet temperature. The start-up frequency of the gas heating module and / or the electric heating module is reduced, the service life of the gas heating module and the electric heating module is extended, the environmental noise is reduced, and the user's experience is improved. The problem that the existing water heater uses a gas heating module to heat the water in the water pipe when using water, the equipment noise is large, and once the user frequently uses water in small amounts, the gas heating module will need to be repeatedly turned on and off in a short period of time, which will not only generate large equipment operation noise, but also affect the service life of the gas heating module.

[0023] 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

[0024] In order to more clearly illustrate the technical solutions in the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of a water heater provided by the present invention;

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

[0027] Figure 3 It is a flow chart of another water heater control method provided by the present invention;

[0028] Figure 4is a schematic diagram of a combustion power curve provided by the present invention;

[0029] Figure 5 It is a flow chart of another water heater control method provided by the present invention;

[0030] Figure 6 It is a schematic diagram of an internal circulation loop provided by the present invention;

[0031] Figure 7 It is a structural schematic diagram of a control module provided by the present invention;

[0032] Figure 8 It is a structural schematic diagram of an electronic device provided by the present invention.

[0033] Reference numerals:

[0034] 1-control module, 2-first three-way valve, 3-gas inlet pipe, 4-water heater inlet pipe, 5-water heater outlet pipe, 6-electric heating module, 7-energy storage module, 8-second three-way valve, 9-water pump, 10-gas heating module, 11-heat exchanger. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings 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.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0037] Figure 1 It is a structural schematic diagram of a water heater provided by the present invention, from Figure 1As can be seen in the figure, the water heater includes a control module 1, a first three-way valve 2, a gas inlet pipe 3, a water inlet pipe 4, a water outlet pipe 5, an electric heating module 6, an energy storage module 7, a second three-way valve 8, a water pump 9, a gas heating module 10, and a heat exchanger 11. The three-way valve is used to adjust the flow direction of water in the pipeline, and the water pump is used to provide power so that the water in the pipeline can circulate and flow. The T-shaped component on the pipeline in the figure can be understood as a temperature sensor, which is used to detect the temperature of water at different positions in the management. The water inlet pipe of the water heater is nested with the water inlet of the water heater, and the water outlet pipe of the water heater is nested with the water outlet of the water heater. The control module is electrically connected or communicated with the gas heating module, the electric heating module and the energy storage module respectively (not shown in the figure) to control the operation of the gas heating module, the electric heating module and the energy storage module.

[0038] In addition to the gas heating module, the water heater of the present invention is also provided with an auxiliary heating module connected in series with the gas heating module. The auxiliary heating module is an electric heating module and an energy storage module connected in parallel. The heating device of the water heater can be a gas heating module and / or an auxiliary heating module. At the same time, at most only one heating module in the auxiliary heating module will be in working state. The control module will determine the heating components of the water heater and the working parameters of the heating components according to the water inlet flow rate of the water inlet and the set water outlet temperature of the water outlet. For example, when the water flow rate is large, the gas heating module, or the gas heating module and the energy storage module, or the gas heating module and the electric heating module are controlled to work to heat the water in the pipeline. When the water flow rate is small, the gas heating module is not started, and the electric heating module or the energy storage module is controlled to work to heat the water in the pipeline.

[0039] The water heater of the present invention can determine a personalized heating plan based on the inlet and outlet water information, reduce the use noise of the water heater and the start-up frequency of each heating component, and improve the service life of each heating component and the user's experience. Secondly, the water heater of the present invention can compensate for the heat loss of the pipeline through the coordinated work of each heating component, so that the water temperature at the water outlet of the water heater reaches the set water outlet temperature and the purpose of zero cold water is available in real time, and it can also realize internal circulation heating without the participation of the gas heating module, reduce the combustion noise during the internal circulation, and improve the zero cold water experience.

[0040] Figure 2This is a flow chart of a control method for a water heater provided by the present invention. The method is applied to a control module in the water heater. The water heater is also provided with a pipeline and a gas heating module and an auxiliary heating module connected in series to the pipeline, wherein the auxiliary heating module includes an energy storage module and an electric heating module deployed in parallel. This embodiment can be applied to controlling the water in the water pipe of the water heater with low power consumption, energy saving and low noise. The method can be executed by the water heater provided by the present invention. The water heater can be implemented in the form of hardware and / or software. In a specific embodiment, the water heater can be integrated in an electronic device. The following embodiments will be described by taking the water heater integrated in an electronic device as an example, with reference to Figure 2 , the method specifically comprises the following steps:

[0041] S101, obtaining the water inlet flow rate of the water inlet of the water heater and the set water outlet temperature of the water outlet.

[0042] The water inlet of the water heater can be understood as the pipe opening in the water heater for connecting to the water source, which is generally tap water, purified soft water or pure water. The water outlet can be understood as the pipe opening in the water heater for connecting to the water pipe, so as to deliver the heated water to the user for use. The water inlet flow rate is also called the instantaneous flow rate, which can be understood as the volume of fluid passing through the water inlet or the cross section of the pipe of the water heater per unit time. Generally, the unit of the water inlet flow rate is m^3 / s or L / s. The set water outlet temperature can be understood as the user's water demand temperature, which is equivalent to the heating target of the water heater (that is, the degree of heating of the water flowing through the water heater).

[0043] Specifically, the water heater of the present invention is equipped with a water flow sensor at the water inlet for detecting the water flow of the water inlet. The advantage of such an arrangement is that real-time information of the water heater is collected so as to timely adjust and correct the heating mode of the water heater.

[0044] S102: Determine the working state of the gas heating module based on the water inlet flow rate.

[0045] The working state may include a working state or a heating-stopped state.

[0046] The gas heating module is the main heating component of the gas water heater. It has a significant heating effect, but it produces a lot of noise during operation. Therefore, the present invention limits the start and stop of the gas heating module according to the user's water demand. For example, when the user has a large water demand, the gas heating module is started to reduce environmental noise. The advantage of this setting is that the working mode of the gas heating module can be quickly determined according to the water inlet flow rate.

[0047] In this embodiment, the heating power at which the gas heating module starts heating is preset to be the heating power corresponding to the minimum heat load of the gas heating module.

[0048] S103: Based on the internal pressure of the energy storage module, determine a heat source object to be started from the auxiliary heating module.

[0049] Among them, the auxiliary heating module can be understood as a component in the water heater that assists in heating. For example, it performs heating work when a small amount of water is used, or continues to heat the pipeline water flowing out of the gas heating module when the gas heating module is not sufficient to heat the temperature of the pipeline water to the set water outlet temperature.

[0050] The heat source object to be started is determined from the auxiliary heating module, which can be a heating component deployed after the gas heating module. The auxiliary heating module is an energy storage module and an electric heating module arranged in parallel. Therefore, the heat source object to be started is an energy storage module or an electric heating module. At the same time, only one of the electric heating module and the energy storage module will be in working state. When the energy storage module is working, the electric heating module is in standby state. When the electric heating module is working, the energy storage module is in standby or energy replenishment state.

[0051] The internal pressure of the energy storage module can be understood as a parameter that determines the amount of heat stored inside the energy storage module. It is used to indicate the upper limit of the amount of heat that can be released by the energy storage module. The internally stored heat is related to the heating power of the energy storage module. The heating power is the energy conversion rate of the energy storage module per unit time. The internal heat of the energy storage module can be converted into heat energy and replaced with water in the pipeline, thereby increasing the water temperature of the pipeline water. Different internal pressures correspond to different internal heat and heating powers.

[0052] S104: Determine the heating power of the heat source object to be started.

[0053] The heating power of the heat source object to be started is the heating power of the energy storage module or the electric heating power of the electric heating module. It is worth noting that when the gas heating module is not working, the outlet water temperature of the gas heating module is the inlet water temperature.

[0054] Specifically, the heating power of the energy storage module can be understood as the average power value corresponding to the internal heat consumed by the energy storage module to heat the water output by the gas heating module to the set water outlet temperature. The electric heating power can be understood as the power value corresponding to the heat required by the electric heating module to heat the water output by the gas heating module to the set water outlet temperature. The heating power of the heat source object to be started is closely related to the type of the heat source object to be started, the water inlet flow of the water heater, the water inlet temperature of the heat source object to be started (i.e. the water outlet temperature of the gas heating module) and the set water outlet temperature. After determining the type of the heat source object to be started, the heating power of the heat source object to be started can be determined based on the water inlet flow of the water heater, the water inlet temperature of the heat source object to be started and the set water outlet temperature.

[0055] The control module will monitor the internal pressure of the energy storage module in real time. When the control module believes that the internal pressure of the energy storage module is low and the internal heat is insufficient for heating, it will determine that the heat source to be started is the electric heating module; when the control module believes that the internal pressure of the energy storage module is high and the internal heat is sufficient for heating, it will determine that the heat source to be started is the energy storage module.

[0056] In one embodiment, P1 is used as a measurement basis, assuming that an internal pressure not less than P1 represents sufficient internal heat, and an internal pressure less than P1 represents insufficient internal heat. When the internal pressure of the energy storage module is not less than P1, the heat source object to be started will be determined to be the energy storage module, and when the internal pressure of the energy storage module is less than P1, the heat source object to be started will be determined to be the electric heating module. The advantage of this setting is that it can quantify the determination index of the heat source object to be started, quickly locate the heat source object to be started, and then determine the heating power of the heat source object to be started, thereby improving the hot water production efficiency of the water heater.

[0057] S105, connecting the pipeline where the heat source object to be started is located, and controlling the heat source object to be started to perform heating work based on its heating power and the working state of the gas heating module, so that the water temperature at the water outlet of the water heater reaches the set water outlet temperature.

[0058] Among them, turning on the pipeline where the heat source object to be started is located can enable the heat source object to be started to perform the pipeline water heating work.

[0059] Specifically, the pipeline where the heat source object to be started is located is turned on, and the heat source object to be started is controlled to perform heating work based on its heating power and the working state of the gas heating module, so that the water temperature at the water outlet of the water heater reaches the set water outlet temperature, which is any one of the following heating methods: 1) The pipeline of the electric heating module is turned on, and the electric heating module is controlled to work based on the electric heating power, so that the water temperature at the water outlet of the water heater reaches the set water outlet temperature; 2) The pipeline of the energy storage module is turned on, and the energy storage module is controlled to work based on the heating power (that is, the heat that can be released by the energy storage module), so that the water temperature at the water outlet of the water heater reaches the set water outlet temperature.

[0060] For example, assuming that the heat source object to be started is an electric heating module and its electric heating power is power A, the pipeline where the electric heating module is located is connected through the first three-way valve, and the electric heating module is controlled to operate at power A so as to raise the water temperature at the outlet of the water heater to the set water outlet temperature.

[0061] The advantage of this setting is that the water outlet temperature can be set according to the water inlet flow of the water heater and other water demand to determine the heating equipment and its working parameters. The heating equipment is a gas heating module and / or a heat source object to be started, and its operation is controlled so that the water temperature at the outlet of the water heater is the water with the set outlet temperature.

[0062] The technical solution of this embodiment determines the working state of the water heater according to the water inlet flow rate and the set water outlet temperature of the water heater, and supplements heating with the auxiliary heating module according to the working state of the water heater, thereby reducing the start-up frequency of the gas heating component and / or the electric heating component while ensuring the water outlet temperature, extending the service life of each heating component, reducing environmental noise, and improving the user experience. This solves the problem that the existing water heater uses a gas heating component to heat the water in the water pipe when using water, and the equipment is noisy. Once the user frequently uses small amounts of water, the gas heating component will need to be turned on and off repeatedly in a short period of time, which will not only generate a large equipment operation noise, but also affect the service life of the gas heating component.

[0063] Figure 3 This is a flow chart of another method for controlling a water heater provided by the present invention. The method is applied to a control module in the water heater. The water heater is also provided with a pipeline and a gas heating module and an auxiliary heating module connected in series to the pipeline. The auxiliary heating module includes an energy storage module and an electric heating module deployed in parallel. This embodiment can be applied to controlling the water in the water pipe of the water heater with low power consumption, energy saving and low noise. The method can be executed by the water heater provided by the present invention. The water heater can be implemented in the form of hardware and / or software. In a specific embodiment, the water heater can be integrated in an electronic device. The following embodiments will be described by taking the water heater integrated in an electronic device as an example. Figure 3 , the method specifically comprises the following steps:

[0064] S201, obtaining the water inlet flow rate of the water inlet of the water heater and the set water outlet temperature of the water outlet.

[0065] S202: Determine the working state of the gas heating module based on the water inlet flow rate.

[0066] In S201 and S202, the water inlet of the water heater is the pipe opening in the water heater for connecting to the water source, which is generally tap water, purified soft water or pure water; the water outlet is the pipe opening in the water heater for connecting to the water pipe, so as to deliver the heated water to the user for use. The water inlet flow rate is the volume of fluid passing through the water inlet or the cross section of the pipe of the water heater per unit time, and the set water outlet temperature can be understood as the user's water demand temperature, which is equivalent to the heating target of the water heater. The working state can include the start-up operation state or the stop heating state.

[0067] In one embodiment, S202 may specifically include: determining whether the water inlet flow rate is less than a preset flow rate value; if the water inlet flow rate is less than the preset flow rate value, determining that the working state of the gas heating module is a stop heating state; if the water inlet flow rate is not less than the preset flow rate value, determining that the working state of the gas heating module is a start heating state.

[0068] The preset flow rate value is the start-up flow rate of the gas heating module, which can be understood as a basis for measuring whether the user's water demand is a large amount of water. When the water inlet flow rate is not less than the preset flow rate value, the user's water demand is considered to be a large amount of water. Otherwise, the user's water demand is considered to be a small amount of water. The present invention starts the gas heating module when the user uses a large amount of water. The purpose of this setting is to complete the heating work in a more energy-saving, efficient and low-noise manner.

[0069] In addition, the present invention can also set a water consumption lower limit threshold. When the water inlet flow rate is less than the water consumption lower limit threshold, it is determined that the user has no water demand, and the water heater is controlled to be in standby mode, effectively reducing the power consumption of the water heater.

[0070] S203: Determine whether the internal pressure of the energy storage module is less than a first preset pressure value.

[0071] Among them, the first preset pressure value can be understood as a basis for measuring whether the internal pressure is sufficient. When the internal pressure of the energy storage module is less than the first preset pressure value, it is considered that the internal pressure is too low to support the heating work of the energy storage module, and S205 is executed; otherwise, it is proved that the internal heat of the energy storage module is sufficient to support the heating work of the energy storage module, and S204 is executed.

[0072] S204: Determine that the heat source object to be started is an energy storage module.

[0073] Specifically, when a large amount of water is used, the gas heating module needs to be started. If it is determined that the heat source object to be started is the energy storage module at this time, it means that the water in the pipeline can be heated by relying on the internal heat of the energy storage module and the gas heating module; when a small amount of water is used, the gas heating module does not need to be started. If it is determined that the heat source object to be started is the energy storage module at this time, it means that the water in the pipeline can be heated only by relying on the internal heat of the energy storage module.

[0074] S205: Determine that the heat source object to be started is an electric heating module.

[0075] When a large amount of water is used, the gas heating module needs to be started. If it is determined that the heat source to be started is the electric heating module, it means that the water in the pipeline can be heated by the electric heating module and the gas heating module. When a small amount of water is used, the gas heating module does not need to be started. If it is determined that the heat source to be started is the electric heating module, it means that the water in the pipeline can be heated by the electric heating module alone.

[0076] S206, determining the difference between the outlet water temperature of the gas heating module and the set outlet water temperature; if the difference exceeds the set difference threshold, determining the amount of heat to be supplemented based on the difference and the water inlet flow rate as the heating power of the heat source object to be started.

[0077] In one implementation, the amount of heat to be supplemented can be determined in the following manner: the product of the difference between the outlet water temperature of the gas heating module and the set outlet water temperature, the water inlet flow rate, and the preset specific heat capacity of water is used as the amount of heat to be supplemented. Specifically, the amount of heat to be supplemented is used as the heating power of the heat source object to be started, which can be reflected as the heating power W, W = Δt*Q0*C, where Δt is the difference between the outlet water temperature of the gas heating module and the set outlet water temperature, Q0 is the water inlet flow rate, and C is the specific heat capacity of water.

[0078] When the heat source object to be started is an electric heating module, the electric heating module can be controlled to perform heating work based on the heating power W; when the heat source object to be started is an energy storage module, the energy storage module can be controlled to release heat based on the heating power W.

[0079] It is worth noting that when the difference between the water outlet temperature of the gas heating module and the set water outlet temperature is less than the set difference threshold, it means that the gas heating module is able to heat the water to the set water outlet temperature. At this time, it is determined that the heat source object to be started is the electric heating module and the electric heating module is controlled to stop heating.

[0080] S207, connecting the pipeline where the heat source object to be started is located, and controlling the heat source object to be started to perform heating work based on its heating power and the working state of the gas heating module, so that the water temperature at the water outlet of the water heater reaches the set water outlet temperature.

[0081] The method for determining the heating power of the gas heating module includes: obtaining the water inlet temperature of the water heater inlet, and determining the total heating power according to the water inlet flow, the water inlet temperature and the set water outlet temperature; determining the heating power of the gas heating module based on the total heating power and the heating power of the heat source object to be started.

[0082] Specifically, Figure 1 As shown, the energy storage module and the electric heating module are connected in parallel through the first three-way valve. When the heat source object to be started is the energy storage module, the first three-way valve is used to close the pipeline of the electric heating module and conduct the pipeline of the energy storage module so that the energy storage module is connected to the heating circuit of the water heater; when the heat source object to be started is the electric heating module, the first three-way valve is used to close the pipeline of the energy storage module and conduct the pipeline of the electric heating module so that the electric heating module is connected to the heating circuit of the water heater. The purpose of this setting is to use a simple control component to introduce the heating component to be used into the heating circuit of the water heater.

[0083] In the specific implementation, Figure 4A schematic diagram of the combustion power curve is shown, which shows the relationship curve between the heating power W of the gas heating module and the time t. If the gas heating module is in the startup heating state, when the gas heating module is started, its heating power does not immediately reach its set target heating power, but gradually increases to the target heating power. For example, the target heating power is W0. If the heating power of the water heater increases to the target heating power, it takes t0. This phenomenon is called power ramping. This gradually increasing heating power is to ensure that the water heater can smoothly and safely reach the set working state, while avoiding excessive load pressure on the household circuit.

[0084] Obviously, during the power ramp time t0, the actual heating power of the gas heating module is small and less than its set target heating power W0. If the gas heating module is started alone, the required target heating power W0 cannot be achieved. Therefore, it needs to be used together with the auxiliary heating module to avoid the situation where the water outlet temperature of the water heater is far lower than the target water outlet temperature for a period of time when the gas heating module is started alone, affecting the user's water experience. Of course, when the gas heating module and the auxiliary heating module are turned on at the same time, the heating power of the two needs to be adjusted separately so that the sum of the heating power meets the heating demand.

[0085] If the auxiliary heating module is an electric heating module, the power regulation of the electric heating module during the auxiliary heating process is stepless regulation, which is a regulation method that can be continuously changed without fixed gears or restrictions.

[0086] The technical solution of this embodiment determines the heating mode of the water heater according to the water inlet flow rate and the set water outlet temperature of the water heater. The heating mode includes the specific heating components of the water heater and the working information of the heating components. While ensuring the water outlet temperature, the startup frequency of the gas heating components and / or electric heating components is reduced, the service life of each heating component is extended, the environmental noise is reduced, and the user's experience is improved. The existing water heater uses a gas heating component to heat the water in the water pipe when using water, and the equipment is noisy. Once the user frequently uses small amounts of water, the gas heating component needs to be repeatedly turned on and off in a short period of time, which will not only generate a large equipment operation noise, but also affect the service life of the gas heating component.

[0087] Figure 5 It is a flow chart of another water heater control method provided by the present invention. Based on the above-mentioned embodiments, this embodiment illustrates the heat supplement process of the energy storage module.

[0088] In one implementation, the energy storage module is mainly composed of 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 absorbs heat when it changes from solid to liquid to achieve heat storage, and releases heat when it changes from liquid to solid to achieve heating of the water flow in the pipeline. Optionally, in this embodiment, the phase change temperature of the phase change material is generally between 30-60°C.

[0089] 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 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 and the energy storage module, extend the heating time, and improve the heat exchange effect.

[0090] In this embodiment, the pipeline also includes an inner circulation pipeline, and the gas heating module and the electric heating module are arranged on the inner circulation pipeline. Figure 6 As shown in the red arrows, the red arrows indicate the inner circulation pipe and the direction of water flow in the pipe. Figure 6 As shown, the inner circulation pipeline also includes a second three-way valve 2, and the valve body includes three channels, namely an inlet channel, an outlet channel and an intermediate channel. The three channels are cross-connected, and the inlet channel of the second three-way valve 2 is connected to the water inlet pipe 4 of the water heater, the outlet channel is connected to the water pump 9, and the intermediate channel is connected to the one-way valve on the left. When the water heater is working, the inlet channel and the outlet channel of the second three-way valve 2 are opened, and when the water heater is on standby and enters the inner circulation state, the intermediate channel and the outlet channel of the second three-way valve 2 are opened, so only one second three-way valve 2 is needed to meet all the use requirements of the pipeline at the same time.

[0091] The method is applied to a control module in a water heater, and the water heater is also provided with a pipeline and a gas heating module and an auxiliary heating module connected in series to the pipeline, and the auxiliary heating module includes an energy storage module and an electric heating module deployed in parallel. This embodiment can be applied to control the water heater to heat water in a water pipe with low power consumption, energy saving, and low noise, and the method can include the following steps:

[0092] S301, obtaining the water inlet flow rate of the water inlet of the water heater and the set water outlet temperature of the water outlet.

[0093] S302, determining the working state of the gas heating module based on the water inlet flow rate.

[0094] S303: determining a heat source object to be started from the auxiliary heating module based on the internal pressure of the energy storage module, wherein the heat source object to be started is an energy storage module or an electric heating module.

[0095] S304, determining the heating power of the heat source object to be started.

[0096] S305, turning on the pipeline where the heat source object to be started is located, and controlling the heat source object to be started to perform heating work based on its heating power and the working state of the gas heating module, so that the water temperature at the outlet of the water heater reaches the set water outlet temperature.

[0097] S306, when the gas heating module and the electric heating module are not started, determining whether the energy storage module is in an overcooling state.

[0098] The supercooling state may be that the heating power of the energy storage module is low or the energy storage module is in a heat absorption state.

[0099] In one embodiment, whether the energy storage module is in an overcooled state can be determined in the following manner: when the internal pressure of the energy storage module is less than a second preset pressure value and the duration exceeds a first preset duration, the energy storage module is determined to be in an overcooled state.

[0100] In this embodiment, the internal pressure of the energy storage module is less than the second preset pressure value, indicating that the heat inside the energy storage module is insufficient. If it is monitored that the internal pressure of the energy storage module is less than the second preset pressure value for a duration exceeding the first preset duration, it can be determined that the energy storage module is in an overcooled state.

[0101] In another embodiment, whether the energy storage module is in an overcooled state may be determined in the following manner:

[0102] When the water temperature difference between the water outlet and the water inlet of the energy storage module is less than a first preset temperature difference threshold and lasts for more than a second preset time, it is determined that the energy storage module is in an overcooling state.

[0103] In this embodiment, the heating power of the energy storage module can be determined according to the inlet and outlet water temperature difference of the energy storage module. When the water temperature difference is less than the preset temperature difference threshold, it means that the heating power of the energy storage module is low or is in a heat absorption state. If the water temperature difference is less than the preset temperature difference threshold for a duration exceeding the preset time, it can be determined that the energy storage module is in an overcooling state, and the energy storage module can be supplemented with heat energy at this time.

[0104] It should be noted that the above two methods of determining whether the energy storage module is in an overcooled state may be selected for determination alone or in combination (i.e., the energy storage module is determined to be in an overcooled state only when both of the above two determination conditions are met, and the order of the combined determination is not limited).

[0105] S307: When the energy storage module is in an overcooling state, determine whether the current time is a preset non-silent time.

[0106] When the energy storage module needs to be supplemented with thermal energy, the energy supplement method to be adopted can be further determined based on the time attribute.

[0107] In this embodiment, it can be determined whether the current time is a preset non-quiet time. The environmental noise index value of the quiet time period is less than the environmental noise index value of the non-quiet time period. The quiet time period can be understood as a noise-sensitive time period such as night, 22:00 to 6:00 the next morning; the non-quiet time period can be understood as a time period in a day other than the quiet time period. In one implementation, a timing unit is provided on the gas water heater to determine the current time.

[0108] S308, if the current time is the preset non-silent time, the inner circulation pipeline is connected, and the gas heating module is started, and the pipeline of the energy storage module is connected through the first three-way valve, so as to rely on the gas heating module to heat the water flow in the inner circulation pipeline to generate heat and supplement the energy storage module with heat.

[0109] Specifically, if the current time when the energy storage module needs to be supplemented with heat is a non-quiet time period, which means that the time period is not sensitive to noise, a gas heating module is used to supplement the energy storage module with heat to save electricity costs.

[0110] When implementing, Figure 6 As shown, the inner circulation pipeline (red arrow part) can be firstly opened through the second three-way valve 2, and the gas heating module can be started, and the pipeline of the energy storage module can be opened through the first three-way valve 9 (that is, the pipeline of the electric heating module is closed). In this way, the water flow in the inner circulation pipeline is heated by the gas heating module, and when the water in the inner circulation pipeline flows through the energy storage module, the energy storage module supplements heat by absorbing heat.

[0111] S309, if the current time is not the preset non-quiet time, the inner circulation pipeline is turned on, the pipeline of the electric heating module is turned on through the first three-way valve and the electric heating module is started to heat the water flow in the inner circulation pipeline by the electric heating module. When the preset heating conditions are met, the electric heating module is turned off and the pipeline of the energy storage module is turned on through the first three-way valve.

[0112] Specifically, if the current time when the energy storage module needs to be supplemented with heat is a quiet time period, which means that this time period is sensitive to noise, an electric heating module is used to supplement the energy storage module with heat to avoid the noise generated by the gas heating module.

[0113] When implementing, Figure 6As shown, the inner circulation pipeline (red arrow part) can be firstly conducted through the second three-way valve 2, and the gas heating module can be turned off, and the pipeline of the electric heating module can be conducted through the first three-way valve 9 (that is, the pipeline of the energy storage module is closed), and the electric heating module can be turned on, so that the water flow in the inner circulation pipeline is heated by the electric heating module. When the preset heating conditions are met, the electric heating module is turned off, and at this time, the water temperature in the inner circulation pipeline is a higher water temperature.

[0114] Next, the pipeline of the energy storage module is opened through the first three-way valve 9 (ie, the pipeline of the electric heating module is closed), and the water in the inner circulation pipeline will flow through the energy storage module, and the energy storage module replenishes heat by absorbing heat.

[0115] Exemplarily, the preset heating condition may be that the water temperature in the inner circulation pipe reaches a set water temperature, or that the heating time reaches a set duration, which is not limited in this embodiment.

[0116] When the temperature difference between the inlet water temperature of the energy storage module and the outlet water temperature of the energy storage module is lower than the set temperature difference value, and the internal pressure of the energy storage module is within the maximum allowable pressure range, it is determined that the heat replenishment of the energy storage module is completed. The set temperature difference value is one of the standards for inspecting the energy replenishment work. For example, the standard for the completion of the heat replenishment of the energy storage module can be that the temperature difference between the inlet water temperature of the energy storage module and the outlet water temperature of the energy storage module is less than 0.5°C, and the internal pressure P∈(P2±50)Pa in the energy storage module, where (P2±50)Pa is used to represent the maximum allowable pressure range of the energy storage module. The advantage of this setting is that the energy replenishment measurement standard of the energy storage module can be quantified to accurately judge the progress of the energy storage work.

[0117] In some embodiments, during the energy replenishment process, the water heater may operate at the highest temperature. The advantage of such a setting is that the efficiency of the energy replenishment work may be improved.

[0118] It should be noted that through Figure 6 The method of using the internal circulation pipeline to supplement the heat of the energy storage module is only an exemplary implementation of this embodiment. In practice, the pipeline of the energy storage module can also be directly connected to use a gas heating module to supplement the energy of the energy storage module.

[0119] The water temperature in the inner circulation pipe can be maintained for a period of time. When the user uses water, the temperature difference between the water temperature in the inner circulation pipe and the water use temperature can be reduced, and the water can be quickly heated to the water use temperature, thereby improving the user's water use experience.

[0120] The present invention can change the temperature of the circulating water in the pipeline according to the phase change temperature of the material of the energy storage module, combined with the adjustment of the electric heating power / gas heating power and the circulating water volume, and then transfer the heat of the circulating water to the energy storage module to achieve energy replenishment of the energy storage module. At the same time, the pipeline water is circulated and heated during the energy replenishment process, and the purpose of zero cold water in the water heater can also be achieved.

[0121] The water heater of the present invention comprises a control module, a pipeline, and a gas heating module and an auxiliary heating module connected in series to the pipeline. The auxiliary heating module comprises an energy storage module and an electric heating module which are arranged in parallel.

[0122] Figure 7 is a structural diagram of a control module provided by the present invention, such as Figure 7 As shown, the control module includes: an information acquisition unit 401 , a working state determination unit 402 , a heat source object determination unit 403 , a heating power determination unit 404 and a heating work execution unit 405 .

[0123] The information acquisition unit 401 is used to acquire the water inlet flow rate of the water inlet of the water heater and the set water outlet temperature of the water outlet;

[0124] A working state determining unit 402, configured to determine the working state of the gas heating module based on the water inlet flow rate;

[0125] A heat source object determining unit 403 is used to determine a heat source object to be started from the auxiliary heating module based on the internal pressure of the energy storage module, wherein the heat source object to be started is the energy storage module or the electric heating module;

[0126] A heating power determination unit 404, used to determine the heating power of the heat source object to be started;

[0127] The heating work execution unit 405 is used to conduct the pipeline where the heat source object to be started is located, and control the heat source object to be started to perform heating work based on its heating power and the working state of the gas heating module, so that the water temperature at the outlet of the water heater reaches the set water outlet temperature.

[0128] Optionally, the working status determining unit 402 is specifically configured to:

[0129] Determining whether the water inlet flow rate is less than a preset flow rate value;

[0130] If the water inlet flow rate is less than the preset flow rate value, determining that the working state of the gas heating module is a heating stop state;

[0131] If the water inlet flow rate is not less than the preset flow rate value, it is determined that the working state of the gas heating module is the start-up heating state.

[0132] Optionally, the gas heating module and the auxiliary heating module are arranged in sequence along the water flow direction of the pipeline;

[0133] The heat source object determination unit 403 is specifically used for:

[0134] Determining whether the internal pressure of the energy storage module is less than a first preset pressure value;

[0135] If the internal pressure is not less than the first preset pressure value, determining that the heat source object to be started is the energy storage module;

[0136] If the internal pressure is less than the first preset pressure value, it is determined that the heat source object to be started is the electric heating module.

[0137] Optionally, the heating power determination unit 404 is specifically used for:

[0138] Determine the difference between the outlet water temperature of the gas heating module and the set outlet water temperature;

[0139] If the difference exceeds a set difference threshold, the amount of heat to be supplemented is determined based on the difference and the water inlet flow rate as the heating power of the heat source object to be started.

[0140] Optionally, the energy storage module and the electric heating module are connected in parallel via a first three-way valve;

[0141] When the heat source object to be started is the energy storage module, the first three-way valve is used to close the pipeline of the electric heating module and the pipeline of the energy storage module is connected so that the energy storage module is connected to the heating circuit of the water heater;

[0142] When the heat source object to be started is the electric heating module, the first three-way valve is used to close the pipeline of the energy storage module and conduct the pipeline of the electric heating module so that the electric heating module is connected to the heating circuit of the water heater.

[0143] Optionally, the pipeline includes an inner circulation pipeline, and the gas heating module and the auxiliary heating module are arranged on the inner circulation pipeline; the control module also includes a heat supplement unit for:

[0144] When the gas heating module and the electric heating module are not started, determining whether the energy storage module is in an overcooling state;

[0145] When the energy storage module is in an overcooled state, determining whether the current time is a preset non-silent time;

[0146] If the current time is the preset non-silent time, the inner circulation pipeline is connected, and the gas heating module is started, and the pipeline of the energy storage module is connected through the first three-way valve, so that the heat generated by the gas heating module heating the water flow in the inner circulation pipeline is used to supplement the heat of the energy storage module;

[0147] If the current time is not the preset non-quiet time, the inner circulation pipeline is opened, the pipeline of the electric heating module is opened through the first three-way valve and the electric heating module is started to heat the water flow in the inner circulation pipeline by relying on the electric heating module. When the preset heating conditions are met, the electric heating module is turned off and the pipeline of the energy storage module is opened through the first three-way valve.

[0148] Optionally, the heat supplement unit is also used to:

[0149] When the internal pressure of the energy storage module is less than a second preset pressure value and the duration exceeds a first preset duration, it is determined that the energy storage module is in an overcooling state;

[0150] and / or,

[0151] When the water temperature difference between the water outlet and the water inlet of the energy storage module is less than a preset temperature difference threshold and lasts for more than a second preset time, it is determined that the energy storage module is in an overcooling state.

[0152] The water heater provided in this embodiment can execute the control method of the water heater provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0153] Figure 8 Schematic diagram of the structure of an electronic device provided by the present invention. Figure 8 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (also called random access memory, RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, ROM 12 and RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0154] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, a remote controller, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0155] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 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 11 executes the various methods and processes described above, such as a control method for a water heater.

[0156] In some embodiments, the control method of the water heater may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the control method of the water heater described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the control method of the water heater in any other appropriate manner (e.g., by means of firmware).

[0157] Various embodiments 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), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may 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.

[0158] 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.

[0159] 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 conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, 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.

[0160] 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).

[0161] The systems and techniques described herein can 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 can 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.

[0162] 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.

[0163] In one embodiment, the present invention further includes a computer program product, the computer program product includes a computer program, and the computer program implements the control method of the water heater of any embodiment of the present invention when executed by a processor.

[0164] In the process of implementation, the computer program product can be written in one or more programming languages ​​or a combination thereof to perform the computer program code of the present invention, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or completely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (for example, through the Internet using an Internet service provider).

[0165] 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.

[0166] 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 method for controlling a water heater, characterized in that: A control module applied to the water heater, wherein the water heater is further provided with a pipeline and a gas heating module and an auxiliary heating module connected in series to the pipeline, wherein the auxiliary heating module comprises an energy storage module and an electric heating module deployed in parallel; The method comprises: Obtaining the water inlet flow rate of the water inlet of the water heater and the set water outlet temperature of the water outlet; Based on the water inlet flow rate, determining the working state of the gas heating module, wherein the working state is starting heating or stopping heating; Based on the internal pressure of the energy storage module, determining a heat source object to be started from the auxiliary heating module, wherein the heat source object to be started is the energy storage module or the electric heating module; Determine the heating power of the heat source object to be started; The pipeline where the heat source object to be started is located is turned on, and the heat source object to be started is controlled to perform heating work based on its heating power and the working state of the gas heating module, so that the water temperature at the water outlet of the water heater reaches the set water outlet temperature.

2. The method according to claim 1, characterized in that Based on the water inlet flow rate, determining the working state of the gas heating module includes: Determining whether the water inlet flow rate is less than a preset flow rate value; If the water inlet flow rate is less than the preset flow rate value, determining that the working state of the gas heating module is to stop heating; If the water inlet flow rate is not less than the preset flow rate value, it is determined that the working state of the gas heating module is to start heating.

3. The method according to claim 1, characterized in that Along the water flow direction of the pipeline, the gas heating module and the auxiliary heating module are arranged in sequence; The step of determining a heat source object to be started from the auxiliary heating module based on the internal pressure of the energy storage module comprises: Determining whether the internal pressure of the energy storage module is less than a first preset pressure value; If the internal pressure is not less than the first preset pressure value, determining that the heat source object to be started is the energy storage module; If the internal pressure is less than the first preset pressure value, it is determined that the heat source object to be started is the electric heating module.

4. The method according to claim 3, characterized in that The step of obtaining the heating power of the heat source object to be started includes: Determine the difference between the outlet water temperature of the gas heating module and the set outlet water temperature; If the difference exceeds the set difference threshold, the amount of heat to be supplemented is determined according to the difference and the water inlet flow rate as the heating power of the heat source object to be started; Obtaining the water inlet temperature of the water heater inlet, and determining the total heating power according to the water inlet flow rate, the water inlet temperature and the set water outlet temperature; The heating power of the gas heating module is determined based on the total heating power and the heating power of the heat source object to be started.

5. The method according to claim 1, characterized in that The energy storage module and the electric heating module are connected in parallel via a first three-way valve; When the heat source object to be started is the energy storage module, the first three-way valve is used to close the pipeline of the electric heating module and the pipeline of the energy storage module is connected so that the energy storage module is connected to the heating circuit of the water heater; When the heat source object to be started is the electric heating module, the first three-way valve is used to close the pipeline of the energy storage module and conduct the pipeline of the electric heating module so that the electric heating module is connected to the heating circuit of the water heater.

6. The method according to claim 5, characterized in that The pipeline includes an inner circulation pipeline, and the gas heating module and the auxiliary heating module are arranged on the inner circulation pipeline; the method further includes: When the gas heating module and the electric heating module are not started, determining whether the energy storage module is in an overcooling state; When the energy storage module is in an overcooled state, determining whether the current time is a preset non-silent time; If the current time is the preset non-silent time, the inner circulation pipeline is connected, and the gas heating module is started, and the pipeline of the energy storage module is connected through the first three-way valve, so that the heat generated by the gas heating module heating the water flow in the inner circulation pipeline is used to supplement the heat of the energy storage module; If the current time is not the preset non-quiet time, the inner circulation pipeline is opened, the pipeline of the electric heating module is opened through the first three-way valve and the electric heating module is started to heat the water flow in the inner circulation pipeline by relying on the electric heating module. When the preset heating conditions are met, the electric heating module is turned off and the pipeline of the energy storage module is opened through the first three-way valve.

7. The method according to claim 6, characterized in that The determining whether the energy storage module is in an overcooling state includes: When the internal pressure of the energy storage module is less than a second preset pressure value and the duration exceeds a first preset duration, it is determined that the energy storage module is in an overcooling state; and / or, When the water temperature difference between the water outlet and the water inlet of the energy storage module is less than a preset temperature difference threshold and lasts for more than a second preset time, it is determined that the energy storage module is in an overcooling state.

8. A water heater, characterized in that: It includes a control module, a pipeline, and a gas heating module and an auxiliary heating module connected in series to the pipeline. The auxiliary heating module includes an energy storage module and an electric heating module deployed in parallel. The control module includes: An information acquisition unit, used to acquire the water inlet flow rate of the water inlet of the water heater and the set water outlet temperature of the water outlet; A working state determining unit, used for determining the working state of the gas heating module based on the water inlet flow rate; a heat source object determining unit, configured to determine a heat source object to be started from the auxiliary heating module based on the internal pressure of the energy storage module, wherein the heat source object to be started is the energy storage module or the electric heating module; A heating power determination unit, used to determine the heating power of the heat source object to be started; The heating work execution unit is used to conduct the pipeline where the heat source object to be started is located, and control the heat source object to be started to perform heating work based on its heating power and the working state of the gas heating module, so that the water temperature at the water outlet of the water heater reaches the set 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; 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 control method of the water heater 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 control method of the water heater according to any one of claims 1 to 7 when executed.

Images