Water heater and control method, system, electronic device and storage medium thereof

Abstract

The present disclosure provides a water heater and its control method, system, electronic device, and storage medium. The water heater includes a proportional valve. The control method comprises: determining a demand current for the proportional valve based on the water heater's required gas flow rate; if the water heater meets current compensation conditions, determining a current compensation method based on the current compensation conditions; adjusting the demand current based on the current compensation method; and using the demand current to control the opening of the proportional valve. By determining whether the gas water heater is in a low-pressure state and a windproof state and adjusting the proportional valve accordingly, the present disclosure achieves adaptive adjustment of the water heater, ensuring more stable gas combustion and reducing the occurrence of flameouts, providing a positive user experience.

Description

Technical Field

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

[0002] Currently, gas water heaters offer multiple heating settings to accommodate diverse user needs. However, when the heater is at its lowest setting, the heating flame is often weak, making it prone to flameout. This can occur due to current decay in the proportional valve itself or external influences (such as air turbulence). This can severely impact the user experience. Summary of the Invention

[0003] The problem to be solved by the present disclosure is to overcome the defect of gas water heaters in the prior art that they are prone to flameout, and to provide a water heater and a control method, system, electronic device and storage medium thereof.

[0004] The present disclosure solves the above technical problems through the following technical solutions:

[0005] The present disclosure provides a control method for a water heater, wherein the water heater includes a proportional valve; the control method includes:

[0006] Determine the required current of the proportional valve according to the required gas flow of the water heater;

[0007] If the water heater meets the current compensation condition, determining the current compensation mode according to the current compensation condition;

[0008] The demand current is adjusted according to the current compensation method; the demand current is used to control the opening of the proportional valve.

[0009] Optionally, the current compensation condition includes any one of the following:

[0010] The first compensation condition is that the gas pressure of the water heater is less than the pressure threshold, the water heater is not flamed out, and the current load of the water heater is less than the target load;

[0011] The second compensation condition is that the water heater is in a wind-resistant state, the water heater is not flamed out, and the current load of the water heater is less than the target load;

[0012] The third compensation condition is that the water heater is turned off when the gas pressure of the water heater is less than the pressure threshold;

[0013] The fourth compensation condition is that the water heater is in a wind-resistant state and the water heater is turned off;

[0014] The fifth compensation condition is that the gas pressure of the water heater is greater than or equal to the pressure threshold, and the water heater is not in a wind-resistant state, and the water heater is extinguished.

[0015] Optionally, the water heater includes a fan; if the water heater meets the current compensation condition, determining the current compensation mode according to the current compensation condition includes:

[0016] If the water heater meets the first compensation condition, then increasing the current demand current, or increasing the current demand current and increasing the wind speed of the fan;

[0017] If the water heater meets the second compensation condition, then increasing the current demand current, or increasing the current demand current and increasing the wind speed of the fan;

[0018] If the water heater meets the third compensation condition, no current compensation is performed;

[0019] If the water heater meets the fourth compensation condition, increasing the current demand current;

[0020] If the water heater meets the fifth compensation condition, the minimum value of the required current of the fire power level is adjusted according to the fire power level of the water heater before the water heater is turned off.

[0021] Optionally, after the step of increasing the current demand current, or increasing the current demand current and increasing the wind speed of the wind turbine, the following steps are included:

[0022] If the wind resistance state changes, determining whether the current compensation condition is currently satisfied;

[0023] A current compensation method is determined according to the current compensation condition.

[0024] Optionally, if the water heater satisfies the fifth compensation condition, adjusting the minimum value of the required current of the power level according to the power level of the water heater before the water heater is turned off includes:

[0025] Obtain the fire power level of the water heater before it is turned off;

[0026] If the fire power level is the highest fire power level, no current compensation is performed;

[0027] If the firepower gear has not reached the highest firepower gear, the adjustment mode is determined according to the actual load before the firepower gear is turned off.

[0028] Optionally, if the firepower level has not reached the highest firepower level, determining the adjustment mode according to the actual load before the firepower level is turned off includes:

[0029] Obtaining the actual load before the flameout at the firepower level;

[0030] If the actual load is less than the load threshold, increasing the minimum value of the required current of the power level;

[0031] If the actual load is greater than or equal to the load threshold, the minimum value of the required current for the firepower level is maintained unchanged.

[0032] The present disclosure further provides a control system for a water heater, the water heater comprising a proportional valve; the control system comprising:

[0033] A first determining module is used to determine a required current of the proportional valve according to a required gas flow of the water heater;

[0034] a second determining module, configured to determine a current compensation mode according to a current compensation condition if the water heater satisfies the current compensation condition;

[0035] An adjustment module is used to adjust the demand current according to the current compensation method; the demand current is used to control the opening of the proportional valve.

[0036] Optionally, the current compensation condition includes any one of the following:

[0037] The first compensation condition is that the gas pressure of the water heater is less than the pressure threshold, the water heater is not flamed out, and the current load of the water heater is less than the target load;

[0038] The second compensation condition is that the water heater is in a wind-resistant state, the water heater is not flamed out, and the current load of the water heater is less than the target load;

[0039] The third compensation condition is that the water heater is turned off when the gas pressure of the water heater is less than the pressure threshold;

[0040] The fourth compensation condition is that the water heater is in a wind-resistant state and the water heater is turned off;

[0041] The fifth compensation condition is that the gas pressure of the water heater is greater than or equal to the pressure threshold, and the water heater is not in a wind-resistant state, and the water heater is extinguished.

[0042] Optionally, the water heater includes a fan; and the second determining module is specifically configured to:

[0043] If the water heater meets the first compensation condition, then increasing the current demand current, or increasing the current demand current and increasing the wind speed of the fan;

[0044] If the water heater meets the second compensation condition, then increasing the current demand current, or increasing the current demand current and increasing the wind speed of the fan;

[0045] If the water heater meets the third compensation condition, no current compensation is performed;

[0046] If the water heater meets the fourth compensation condition, increasing the current demand current;

[0047] If the water heater meets the fifth compensation condition, the minimum value of the required current of the fire power level is adjusted according to the fire power level of the water heater before the water heater is turned off.

[0048] Optionally, the second determining module is specifically configured to:

[0049] increasing the current demand current, or, after increasing the current demand current and increasing the wind speed of the wind turbine, if the wind resistance state changes, determining whether the current compensation condition is currently satisfied;

[0050] A current compensation method is determined according to the current compensation condition.

[0051] Optionally, the second determining module is specifically configured to:

[0052] Obtain the fire power level of the water heater before it is turned off;

[0053] If the fire power level is the highest fire power level, no current compensation is performed;

[0054] If the firepower gear has not reached the highest firepower gear, the adjustment mode is determined according to the actual load before the firepower gear is turned off.

[0055] Optionally, the second determining module is specifically configured to:

[0056] Obtaining the actual load before the flameout at the firepower level;

[0057] If the actual load is less than the load threshold, increasing the minimum value of the required current of the power level;

[0058] If the actual load is greater than or equal to the load threshold, the minimum value of the required current for the firepower level is maintained unchanged.

[0059] The present disclosure also provides a water heater, which includes the aforementioned water heater control system.

[0060] The present disclosure also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and configured to run on the processor, wherein the processor implements the aforementioned water heater control method when executing the computer program.

[0061] The present disclosure also provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the aforementioned water heater control method is implemented.

[0062] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.

[0063] The positive progressive effect of the present disclosure is that by determining whether the gas water heater is in a low-pressure state and whether it is in a wind-resistant state, the proportional valve is adjusted according to the specific conditions, and adaptive adjustment of the water heater is achieved, making the combustion of gas more stable, reducing the occurrence of flameout, and bringing a good experience to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 A flow chart of a method for controlling a water heater provided by an exemplary embodiment of the present disclosure;

[0065] Figure 2 A flow chart of another water heater control method provided by an exemplary embodiment of the present disclosure;

[0066] Figure 3 A module diagram of a control system of a water heater provided by an exemplary embodiment of the present disclosure;

[0067] Figure 4 The present invention provides a structural diagram of an electronic device according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0068] The present disclosure is further illustrated below by way of examples, but the present disclosure is not limited to the scope of the examples.

[0069] The present disclosure applies to gas water heaters (referred to herein as water heaters), which heat water by igniting gas, thereby satisfying users' hot water needs. During the gas combustion process, it is inevitable that external factors may affect the flameout. This disclosure addresses the flameout issue by focusing on the proportional valve itself, as well as the gas and airflow environment. On one hand, factors affecting the gas flow are the proportional valve opening and gas pressure, with gas pressure being an uncontrollable external factor. On the other hand, factors affecting the airflow environment are the operation of the water heater's own fan and external turbulence, with external turbulence being an uncontrollable external factor. Therefore, only the proportional valve and fan are controllable. Specifically, the proportional valve can be controlled by controlling the demand current to determine the valve opening, while the fan can be controlled by controlling the fan speed. Generally, the control parameters for the proportional valve and fan are pre-defined. However, these control parameters may vary in different modes. For example, when the wind resistance mode is enabled, the proportional valve opening and fan speed differ from those in the normal mode (operating in an ideal environment). For example, when the water heater is divided into three fire gears, including low fire, medium fire and high fire. Each fire gear corresponds to the current parameter corresponding to the gear. The current parameter here is generally a range. For example: the current corresponding to low fire is I 1min to I 1max , the current corresponding to medium fire is I 2min to I 2max , the current corresponding to the strong fire is I 3min to I 3max In theory, different currents correspond to different loads, and the current limits (maximum and minimum demand current) for different power levels correspond to the load limits (maximum and minimum load). The current parameters will be adjusted within the above range based on the current water heater's conditions, while also coordinating with the fan's operation (sometimes without the fan's involvement). Therefore, to ensure stable gas combustion in different environments, precise control of the proportional valve and / or fan is necessary.

[0070] Example 1

[0071] Figure 1 This is a flow chart of a control method for a water heater provided by an exemplary embodiment of the present disclosure. The water heater includes a proportional valve and a fan. The control method includes:

[0072] Step 101: Determine the required current of the proportional valve according to the required gas flow of the water heater.

[0073] In the present disclosure, the proportional valve is a key component for controlling gas flow and, therefore, a crucial means for regulating combustion power. The opening of the proportional valve indicates the degree of openness to the gas flow and can be adjusted from 0% to 100%. 0% means the proportional valve is completely closed, resulting in zero gas flow, while 100% means the proportional valve is fully open, achieving maximum gas flow. The opening can be controlled by the current level according to actual needs. Furthermore, the opening of the proportional valve is correlated with the current. Generally, the greater the current, the greater the proportional valve opening, and thus the greater the gas flow. Therefore, in this step, the required current can be determined based on the required gas flow rate based on this corresponding relationship. This corresponding relationship is generally set before shipment and can be obtained through statistical test data or theoretical calculations, including but not limited to artificial intelligence algorithm calculations and simulations.

[0074] Step 102: If the water heater meets the current compensation condition, determine the current compensation method according to the current compensation condition.

[0075] In this step, the current compensation condition includes any of the following:

[0076] The first compensation condition is that the gas pressure of the water heater is less than the pressure threshold, although the water heater is not extinguished and the current load of the water heater is less than the target load;

[0077] The second compensation condition is that the water heater is in a wind-resistant state, the water heater has not been extinguished and the current load of the water heater is less than the target load;

[0078] The third compensation condition is that the water heater is turned off when the gas pressure of the water heater is lower than the pressure threshold;

[0079] The fourth compensation condition is that the water heater is in a wind-resistant state and the water heater is turned off;

[0080] The fifth compensation condition is that the gas pressure of the water heater is greater than or equal to the pressure threshold and the water heater is not in a wind-resistant state, and the water heater is extinguished.

[0081] The above current compensation conditions are primarily determined by the water heater's gas pressure and wind resistance. The reason for considering the water heater's gas pressure is that the heating energy source for a gas water heater is the heat released by the combustion of the gas. Therefore, as a necessary condition for combustion, the gas pressure determines whether the water heater's heating status is normal. Abnormal conditions can cause the water heater to stall or fail to meet the target combustion load. The standard gas pressure can be used to determine whether the gas pressure is normal. For example, the standard gas pressure used in this disclosure is 2000 Pa. In theory, pressures that are too high or too low are considered abnormal. In practical applications, gas pressures that fall below the standard pressure often occur, and low gas pressure is also a major cause of stalling. Therefore, in this step, it is necessary to determine the gas pressure, specifically whether the water heater is under low pressure. It should be understood that the gas in this disclosure includes everyday household pipeline gas, and is not limited to other forms of natural gas, artificial gas, or liquefied petroleum gas. Furthermore, the standard gas pressure can be set according to actual needs.

[0082] On the other hand, the reason why the wind-resistant state factor needs to be considered is that one of the conditions for combustion is an appropriate amount of air supply. When the water heater is heating, if the air supply is sufficient, heating can be carried out without the participation of a fan. However, when the combustion is intense and additional air is required to participate in the combustion of the gas, the fan needs to be run to provide additional air into the combustion chamber to assist in the normal combustion. In addition, if there is turbulent interference from the outside world, such as encountering severe windy weather, it may cause outdoor air to flow back into the water heater combustion chamber, disrupting the normal combustion of the gas in the water heater, and further affecting the heating effect of the water heater. Therefore, in order to cope with this situation, the water heater can enter the wind-resistant state, that is, increase the speed of the fan to offset the adverse effects caused by the external air turbulence, but the operation of the fan in this case will also affect the gas combustion of the water heater itself. Therefore, this step needs to determine whether the water heater is in the wind-resistant state in order to adjust the demand current of the proportional valve.

[0083] In addition, the first compensation condition and the second compensation condition involve the calculation of the current load of the water heater. Optionally, the current load can be determined based on a load relationship curve, which is a corresponding relationship curve between the proportional valve opening or the current demand current and the current load. Based on the corresponding relationship curve, the current load can be determined by the current proportional valve opening or the current demand current. Alternatively, the current load can be determined based on the following load relationship formula:

[0084] Q B =(Q max -Q min )*B%+Q min;

[0085] Among them, Q B is the current load, Q max is the maximum load of the current firepower level, Q min is the minimum load for the current power level, and B% is the proportional valve opening for the current power level. It should be understood that the load relationship curve is determined based on statistical test data for different power levels, or obtained based on theoretical calculations, including but not limited to artificial intelligence algorithm calculations and simulation calculations.

[0086] Based on the above current compensation conditions, step 102 includes the following specific situations:

[0087] Case 1: If the water heater meets the first compensation condition, the current demand current is increased, or the current demand current is increased and the wind speed of the fan is increased.

[0088] In this step, if the water heater is determined to meet the first compensation condition, that is, the gas pressure of the water heater is less than the pressure threshold, although the water heater has not flamed out and the current load of the water heater is less than the target load, then the gas pressure of the water heater is in a low-pressure state. Although it has not caused flameout, the reason why the current load of the water heater is less than the target load is likely due to the low-pressure state, not a fault in the proportional valve itself. Therefore, in order to make the current load greater than or equal to the target load, the gas flow rate needs to be increased, so the current demand current needs to be increased. In addition, under normal circumstances, an increase in current is accompanied by an increase in fan speed. This is because an increase in current increases the gas flow rate, and more air is required to assist combustion to ensure sufficient combustion.

[0089] In this step, the current demand current is increased up to the maximum power limit, i.e., the proportional valve is fully open (100%). If the current load falls below the target load during the increase in the current demand current, the increase in the current demand current is stopped. Similarly, the fan speed also increases as the current demand current increases.

[0090] Case 2: If the water heater meets the second compensation condition, the current demand current is increased, or the current demand current is increased and the wind speed of the fan is increased.

[0091] In this step, if the water heater is determined to meet the second compensation condition (i.e., it is in a wind-resistant state), even though the flameout has not occurred and the current load is less than the target load, the fact that the water heater is in a wind-resistant state indicates that the fan is operating at high speed to offset the effects of external turbulence. Therefore, the flameout is likely caused by the strong wind generated by the fan. In this case, the current demand current of the proportional valve should be increased to increase the valve opening, providing more gas flow to enable combustion to adapt to the wind-resistant state and maintain stable combustion. Alternatively, the current demand current can be increased by 2%, or the current demand current can be increased by 2% while the fan speed is increased by 5%. It should be understood that during the above adjustment process, if the current load is greater than or equal to the target load, the adjustment is stopped. Furthermore, there is a special case where even if the proportional valve is increased to its maximum value, it still cannot meet the target load. In this case, the proportional valve is controlled until it reaches its maximum opening, and then combustion is maintained. Optionally, prompts can be set to alert the user for all of the above situations as needed.

[0092] In addition, in case 2, after the step of increasing the current demand current, or increasing the current demand current and increasing the wind speed of the wind turbine, it includes: if the wind resistance state changes, then judging the current compensation condition currently satisfied; and determining the current compensation method according to the current compensation condition. That is, if after case 2 is executed, if the wind resistance state changes, then re-judgment of the current compensation condition and re-determining the current compensation method. It should be understood that the wind resistance state is dynamically adjusted according to the changes in the external airflow. If the wind resistance state changes, it will inevitably trigger new current compensation conditions. Therefore, it is very necessary to determine the current current compensation line after the wind resistance state changes.

[0093] Case 3: If the water heater meets the third compensation condition, no current compensation is performed.

[0094] In this step, if the water heater is determined to meet the third compensation condition, that is, the gas pressure in the water heater is less than the pressure threshold, the water heater will shut down. This indicates that the cause of the shutdown is likely due to the low gas pressure, not the proportional valve itself. Therefore, adjusting the proportional valve will not resolve the underlying issue. Optionally, the current operating state can be maintained until the low pressure condition ends. It should be understood that maintaining the current operating state in this step, while not adjusting the proportional valve itself, can be used to respond to actual needs, such as alerting the user to abnormal gas pressure.

[0095] In the low-pressure state involved in this step, maintaining the current operating state is on the one hand to prevent over-adjustment caused by adjustment, which may lead to overcorrection; on the other hand, it is also based on the current low-pressure state of gas, waiting for the gas state to return to normal.

[0096] Case 4: If the water heater meets the fourth compensation condition, the current demand current is increased.

[0097] In this step, if the water heater is determined to meet the fourth compensation condition, i.e., it is in the wind-resistant state, and the water heater flames out, it can be determined that the flameout is likely caused by the strong airflow in the wind-resistant state. While not a problem with the proportional valve itself, this problem can be overcome by adjusting the current demand of the proportional valve. Optionally, the current demand can be increased by 5%.

[0098] Case 5: If the water heater meets the fifth compensation condition, the minimum value of the required current of the power level is adjusted according to the power level of the water heater before the flameout.

[0099] In this step, if it is determined that the water heater meets the fifth compensation condition, that is, the gas pressure of the water heater is greater than or equal to the pressure threshold, and the water heater is not in a windproof state, and the water heater goes out, then it can be determined that the cause of the outage is likely due to the proportional valve itself. For example, it is possible that the proportional valve is aging and depreciating, resulting in current attenuation, that is, after determining the required current of the proportional valve based on the required gas flow of the water heater, the actual current loaded into the proportional valve is less than the required current, which in turn causes the proportional valve opening to fail to reach the corresponding opening, or the proportional valve opening cannot reach the corresponding opening due to mechanical structural reasons. This is generally caused by a decrease in the minimum value of the required current of the fire power gear. At this time, current compensation is required, that is, the required current is increased to ensure that the proportional valve opening can reach the corresponding opening. Since outage generally occurs when the required current is at the minimum value of the required current of the fire power gear, this step focuses on adjusting the minimum value of the required current of the fire power gear.

[0100] Specifically, the method includes: obtaining the power level of the water heater before the water heater is turned off; and then determining a specific adjustment method based on the power level of the water heater. The adjustment method includes two methods:

[0101] First, if the power level is at the highest level, no current compensation is performed. This adjustment method is because when the power level is at the highest level, the proportional valve is already open enough. If a flameout occurs, it is likely due to other reasons and requires a detailed investigation. If current compensation is performed rashly at this time, it may cause a deflagration. Therefore, for safety reasons, when the power level is at the highest level and a flameout occurs, no current compensation is performed.

[0102] Second, if the power level has not reached the maximum power level, the regulation method is determined based on the actual load before the power level is turned off. Specifically, this involves obtaining the actual load before the power level is turned off; then, based on the actual load, the specific regulation method is determined. There are two types of regulation methods: one is to increase the minimum demand current for the power level if the actual load is less than a load threshold. Optionally, the minimum demand current for the power level is increased by 10%. The other is to maintain the minimum demand current for the power level if the actual load is greater than or equal to the load threshold.

[0103] In addition, if a power outage occurs after current compensation, the current compensation condition will be re-judged after the water heater is powered on and ignited. If a power outage does not occur after current compensation and the water heater is turned off, no action will be taken at this time.

[0104] Step 103: Adjust the demand current according to the current compensation method; the demand current is used to control the opening of the proportional valve.

[0105] Through the above control method, adaptive adjustment of the water heater is achieved. The proportional valve and fan are adjusted according to different situations to make the combustion of gas more stable, reduce the occurrence of flameout, and bring a good experience to users.

[0106] To illustrate the above control method, a specific example is given here. In this example, the water heater has three gears, including the first, second and third gears (the highest gear). Figure 2 It can be seen that the following steps are included:

[0107] Step 201: The machine (water heater) is ignited successfully and burns.

[0108] Step 202 , determine whether the water heater has entered a low pressure state (the gas pressure of the water heater is less than the pressure threshold). If the judgment is “yes”, proceed to step 213 ; if the judgment is “no”, proceed to step 203 .

[0109] Step 203 , determine whether the water heater has entered the wind-resistant state. If the judgment is “yes”, proceed to step 213 ; if the judgment is “no”, proceed to step 204 .

[0110] Step 204 , determine whether the water heater reports a flameout fault for the first time after being powered on. If the answer is “yes”, proceed to step 205 ; if the answer is “no”, proceed to step 210 .

[0111] Step 205 , determine whether the pre-stallation position is in the first or second position. If the judgment is “yes”, proceed to step 206 ; if the judgment is “no”, proceed to step 210 .

[0112] Step 206: Determine whether the load before the flameout is within Q min With QB If the judgment is “yes”, the process goes to step 207; if the judgment is “no”, the process goes to step 210.

[0113] Step 207: The minimum current of the first and second segments (the minimum value of the demand current) is increased by 10%, and the third segment (the highest segment) is not processed.

[0114] Step 208 , determine whether the power is turned off after current compensation. If the judgment is “yes”, go to step 201 ; if the judgment is “no”, go to step 209 .

[0115] Step 209 : Determine whether a fault occurs during subsequent combustion. If the answer is “yes”, proceed to step 210 ; if the answer is “no”, repeat this step.

[0116] Step 210: No processing is performed.

[0117] Step 211: Determine whether a power outage occurs subsequently. If the determination is "yes", proceed to step 212; if the determination is "no", repeat this step.

[0118] Step 212: Clear the flameout fault.

[0119] Step 213 : Determine whether the engine has stalled. If the answer is “yes”, proceed to step 214 ; if the answer is “no”, proceed to step 215 .

[0120] Step 214: If the water heater is in a low pressure state, no action is taken; if the water heater is in a wind resistance state, the current is increased by 5% based on the wind resistance value. The wind resistance value here refers to the current value corresponding to the demand current in the wind resistance mode.

[0121] Step 215 , determine whether the current load reaches the target load. If the judgment is “yes”, proceed to step 217 ; if the judgment is “no”, proceed to step 219 and step 216 .

[0122] Step 216: If the water heater is in wind resistance mode, increase the speed by 5% and the current by 2% based on the wind resistance value. The wind resistance value here refers to the current value and fan speed corresponding to the demand current in wind resistance mode.

[0123] Step 217: Maintain the current combustion state.

[0124] Step 218 , determine whether the wind resistance state has changed. If the judgment is “yes”, proceed to step 213 ; if the judgment is “no”, proceed to step 217 .

[0125] Step 219: If the water heater is in a low pressure state, increase the fan speed and current according to the load relationship curve to the maximum value to maintain combustion.

[0126] Here, we explain the logic of this example: This example's logic compensates for the proportional valve's demand current, so it's necessary to determine the current state because it can interfere with the flameout determination. For example, determining whether the gas is in a low-pressure state. Because all combustion data for the water heater is deviated in this state, blindly performing current compensation when a flameout occurs in this state is meaningless. On the other hand, if the water heater is not in a low-pressure state, combustion should proceed normally. In this case, it's necessary to further determine whether it is in a windproof state, as this affects the current fan speed and current. If it is not in a windproof state, only the first flameout determination is required, as there are no external influences at this point, only the proportional valve itself. Simply adjusting the proportional valve's demand current minimum value is sufficient.

[0127] Example 2

[0128] Reference Figure 3 , is a module diagram of a control system of a water heater provided by an exemplary embodiment of the present disclosure. The control system of the water heater corresponds to a control method of the water heater. The water heater includes a proportional valve; the control system includes:

[0129] A first determining module 21 is configured to determine a required current of the proportional valve according to a required gas flow of the water heater;

[0130] A second determining module 22 is configured to determine a current compensation method according to the current compensation condition if the water heater meets the current compensation condition;

[0131] The adjustment module 23 is used to adjust the demand current according to the current compensation method; the demand current is used to control the opening of the proportional valve.

[0132] Optionally, the current compensation condition includes any one of the following:

[0133] The first compensation condition is that the gas pressure of the water heater is less than the pressure threshold, although the water heater is not extinguished and the current load of the water heater is less than the target load;

[0134] The second compensation condition is that the water heater is in a wind-resistant state, the water heater has not been extinguished and the current load of the water heater is less than the target load;

[0135] The third compensation condition is that the water heater is turned off when the gas pressure of the water heater is lower than the pressure threshold;

[0136] The fourth compensation condition is that the water heater is in a wind-resistant state and the water heater is turned off;

[0137] The fifth compensation condition is that the gas pressure of the water heater is greater than or equal to the pressure threshold and the water heater is not in a wind-resistant state, and the water heater is extinguished.

[0138] Optionally, the water heater includes a fan; the second determining module 22 is specifically configured to:

[0139] If the water heater meets the first compensation condition, then the current demand current is increased, or the current demand current is increased and the wind speed of the fan is increased;

[0140] If the water heater meets the second compensation condition, then the current demand current is increased, or the current demand current is increased and the wind speed of the fan is increased;

[0141] If the water heater meets the third compensation condition, no current compensation is performed;

[0142] If the water heater meets the fourth compensation condition, the current demand current is increased;

[0143] If the water heater meets the fifth compensation condition, the minimum value of the required current of the heating level is adjusted according to the heating level of the water heater before the water heater is turned off.

[0144] Optionally, the second determining module 22 is specifically configured to:

[0145] Increasing the current demand current, or after increasing the current demand current and increasing the wind speed of the wind turbine, if the wind resistance state changes, determining whether the current compensation condition is currently satisfied;

[0146] The current compensation method is determined according to the current compensation conditions.

[0147] Optionally, the second determining module 22 is specifically configured to:

[0148] Get the fire level of the water heater before it is turned off;

[0149] If the firepower level is the highest, no current compensation will be performed;

[0150] If the firepower level has not reached the highest level, the adjustment method will be determined based on the actual load before the firepower level is turned off.

[0151] Optionally, the second determining module 22 is specifically configured to:

[0152] Get the actual load before the fire is turned off;

[0153] If the actual load is less than the load threshold, the minimum value of the required current of the power level is increased;

[0154] If the actual load is greater than or equal to the load threshold, the minimum value of the required current of the thermal gear is kept unchanged.

[0155] Through the above control system, adaptive adjustment of the water heater is achieved. The proportional valve and fan are adjusted according to different situations to make the combustion of gas more stable, reduce the occurrence of flameout, and bring a good experience to users.

[0156] Example 3

[0157] The present disclosure also provides a water heater, which includes the control system of the water heater.

[0158] In this embodiment, the water heater is integrated with the above-mentioned control system, which can adaptively adjust the proportional valve and the fan to make the combustion of the gas more stable, reduce the occurrence of flameout, and bring a good experience to the user.

[0159] Example 4

[0160] Figure 4 The electronic device includes a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the program, the water heater control method provided in any of the above embodiments is implemented. Figure 4 The electronic device 300 shown is merely an example and should not limit the functionality and scope of use of the embodiments of the present disclosure.

[0161] Reference Figure 4 The electronic device 300 may be a general-purpose computing device, such as a server device. Components of the electronic device 300 may include, but are not limited to, the at least one processor 301, the at least one memory 302, and a bus 303 connecting various system components (including the memory 302 and the processor 301).

[0162] The bus 303 includes a data bus, an address bus, and a control bus.

[0163] The memory 302 may include a volatile memory, such as a random access memory (RAM) 321 and / or a cache memory 322 , and may further include a read-only memory (ROM) 323 .

[0164] The memory 302 may also include a program / utility 325 having a set (at least one) of program modules 324, such program modules 324 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0165] The processor 301 executes various functional applications and data processing by running the computer programs stored in the memory 302, such as the control method of the water heater in the embodiment of the present disclosure.

[0166] The electronic device 300 can also communicate with one or more external devices 304 (e.g., a keyboard, pointing device, etc.). This communication can occur via an input / output (I / O) interface 305. Furthermore, the model-generating device 300 can also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 306. As shown, the network adapter 306 communicates with other modules of the model-generating device 300 via a bus 303. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with the model-generating device 300, including but not limited to microcode, device drivers, redundant processors, external disk drive arrays, RAID (RAID) systems, tape drives, and data backup storage systems.

[0167] It should be noted that although several units / modules or sub-units / modules of the electronic device are mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0168] Example 5

[0169] This embodiment further provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the control method for the water heater provided in any of the above embodiments is implemented.

[0170] The readable storage medium may include, but is not limited to, a portable disk, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0171] In a possible implementation, the present disclosure may also be implemented in the form of a program product, which includes program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the water heater control method provided by any of the above embodiments.

[0172] The program code for executing the present disclosure may be written in any combination of one or more programming languages, and may be executed entirely on the user device, partially on the user device, as a standalone software package, partially on the user device and partially on a remote device, or entirely on the remote device.

[0173] While specific embodiments of the present disclosure have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present disclosure is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present disclosure, and such changes and modifications are intended to fall within the scope of protection of the present disclosure.

Claims

1. A method for controlling a water heater, characterized in that: The water heater includes a proportional valve; the control method includes: Determine the required current of the proportional valve according to the required gas flow of the water heater; If the water heater meets the current compensation condition, determining the current compensation mode according to the current compensation condition; The demand current is adjusted according to the current compensation method; the demand current is used to control the opening of the proportional valve; The current compensation condition includes any one of the following: the first compensation condition is that the gas pressure of the water heater is less than the pressure threshold, the water heater is not flameout and the current load of the water heater is less than the target load; the second compensation condition is that the water heater is in a wind-resistant state, the water heater is not flameout and the current load of the water heater is less than the target load; the third compensation condition is that the water heater is flameout when the gas pressure of the water heater is less than the pressure threshold; the fourth compensation condition is that the water heater is flameout when the water heater is in a wind-resistant state; the fifth compensation condition is that the gas pressure of the water heater is greater than or equal to the pressure threshold and the water heater is not in a wind-resistant state. The water heater includes a fan; if the water heater meets the current compensation condition, the current compensation method is determined according to the current compensation condition, including: if the water heater meets the first compensation condition, the current demand current is increased, or the current demand current is increased and the wind speed of the fan is increased; if the water heater meets the second compensation condition, the current demand current is increased, or the current demand current is increased and the wind speed of the fan is increased; if the water heater meets the third compensation condition, no current compensation is performed; if the water heater meets the fourth compensation condition, the current demand current is increased; if the water heater meets the fifth compensation condition, the minimum value of the demand current of the fire power level is adjusted according to the fire power level of the water heater before the fire is turned off.

2. The water heater control method according to claim 1, characterized in that: After the step of increasing the current demand current, or increasing the current demand current and increasing the wind speed of the wind turbine, the method further includes: If the wind resistance state changes, determining whether the current compensation condition is currently satisfied; A current compensation method is determined according to the current compensation condition.

3. The water heater control method according to claim 1, characterized in that: If the water heater satisfies the fifth compensation condition, adjusting the minimum value of the required current of the power level according to the power level of the water heater before the water heater is turned off, including: Obtain the fire power level of the water heater before it is turned off; If the fire power level is the highest fire power level, no current compensation is performed; If the firepower gear has not reached the highest firepower gear, the adjustment mode is determined according to the actual load before the firepower gear is turned off.

4. The water heater control method according to claim 3, characterized in that: If the firepower gear has not reached the highest firepower gear, the adjustment mode is determined according to the actual load before the firepower gear is turned off, including: Obtaining the actual load before the flameout at the firepower level; If the actual load is less than the load threshold, increasing the minimum value of the required current of the power level; If the actual load is greater than or equal to the load threshold, the minimum value of the required current for the firepower level is maintained unchanged.

5. A water heater control system, characterized in that: The water heater includes a proportional valve; the control system includes: A first determining module is used to determine a required current of the proportional valve according to a required gas flow of the water heater; a second determining module, configured to determine a current compensation mode according to a current compensation condition if the water heater satisfies the current compensation condition; an adjustment module, configured to adjust the demand current according to the current compensation method; the demand current is used to control the opening of the proportional valve; The current compensation condition includes any one of the following: the first compensation condition is that the gas pressure of the water heater is less than the pressure threshold, the water heater is not flameout and the current load of the water heater is less than the target load; the second compensation condition is that the water heater is in a wind-resistant state, the water heater is not flameout and the current load of the water heater is less than the target load; the third compensation condition is that the water heater is flameout when the gas pressure of the water heater is less than the pressure threshold; the fourth compensation condition is that the water heater is flameout when the water heater is in a wind-resistant state; the fifth compensation condition is that the gas pressure of the water heater is greater than or equal to the pressure threshold and the water heater is not in a wind-resistant state. The water heater includes a fan; the second determination module is specifically used to: if the water heater meets the first compensation condition, increase the current demand current, or increase the current demand current and increase the wind speed of the fan; if the water heater meets the second compensation condition, increase the current demand current, or increase the current demand current and increase the wind speed of the fan; if the water heater meets the third compensation condition, no current compensation is performed; if the water heater meets the fourth compensation condition, increase the current demand current; if the water heater meets the fifth compensation condition, adjust the minimum value of the demand current of the fire power level according to the fire power level of the water heater before the fire is turned off.

6. A water heater, characterized in that: The water heater includes the control system of the water heater according to claim 5.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and configured to run on the processor, wherein: When the processor executes the computer program, the water heater control method according to any one of claims 1 to 4 is implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the control method of the water heater according to any one of claims 1 to 4 is implemented.

Images