Gas water heater control method and device, gas water heater and storage medium

Abstract

The invention relates to the technical field of device control, and discloses a gas water heater control method and device, a gas water heater and a storage medium, and the gas water heater control method comprises the steps that after the gas water heater is started, accumulated heat output data of the gas water heater is monitored; based on the accumulated heat output data, determining a corresponding target preset rotating speed control strategy in a plurality of preset rotating speed control strategies; and the target preset rotating speed control strategy is operated to control the rotating speed of a draught fan of the gas water heater. According to the method, the combustion effect difference between different types of gas can be reflected by accumulating the heat output data so as to replace recognition of the gas types, then the corresponding target preset rotating speed control strategy is matched according to the comparison result, gas recognition does not need to be carried out after the water heater reaches a stable state, and the efficiency is improved. The waiting time for matching the control strategy is greatly shortened, and the control efficiency of the gas water heater is improved.

Description

Technical Field

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

[0002] As people's living standards improve, the requirements for bathing quality are getting higher and higher, which puts higher requirements on the stability, safety and comfort of water and gas use when using gas water heaters. Therefore, after the water heater is turned on, it is often necessary to match the appropriate operating program so that the air intake can meet the full combustion requirements of the gas while not causing resonance problems due to insufficient air intake.

[0003] Since different types of gas have different heat capacities, the air ratios allocated to different types of gas in the combustion chamber of a gas water heater are also different. Specifically, the gas-to-air configuration ratio can be adjusted by adjusting the fan speed control strategy. Therefore, in the relevant water heater control scheme, considering the different heat capacities of different types of gas, the fan speed control strategy can be matched by identifying the gas type. To ensure the accuracy of the gas type identification results, it is usually necessary to identify the gas type after the gas water heater reaches a stable state. However, in the above scheme, since the gas water heater needs to go through a heating process after starting up to reach a stable temperature state, this results in a high lag in the matching of the fan speed control strategy. Summary of the invention

[0004] In view of this, the present invention provides a gas water heater control method, device, gas water heater and storage medium to solve the problem of fan speed control strategy matching lag.

[0005] In a first aspect, the present invention provides a gas water heater control method, the method comprising:

[0006] After the gas water heater is turned on, monitor the accumulated heat output data of the gas water heater;

[0007] Based on the accumulated heat output data, determining a corresponding target preset speed control strategy among a plurality of preset speed control strategies;

[0008] The operation target preset speed control strategy controls the fan speed of the gas water heater.

[0009] In an embodiment of the present invention, after the gas water heater is turned on, the accumulated heat output data of the gas water heater can be monitored first, and based on the accumulated heat output data, the corresponding target preset speed control strategy can be determined from multiple preset speed control strategies. Then, the target preset speed control strategy is run to control the fan speed of the gas water heater, so that the difference in heat capacity between different types of gas can be directly reflected through the accumulated heat output data without the need to identify the gas type, and then the corresponding target preset speed control strategy is matched according to the comparison result, without waiting for the water heater to reach a stable state before performing gas identification. While ensuring the accuracy of the matching control strategy, the waiting time of the matching control strategy is greatly reduced, and the control efficiency of the gas water heater is improved. At the same time, since the target preset speed control strategy that matches the current combustion state of the gas water heater is matched in time, the resonance risk of the gas water heater is eliminated.

[0010] In an optional implementation, based on the accumulated heat output data, a corresponding target preset speed control strategy is determined from a plurality of preset speed control strategies, including:

[0011] Get the preset output threshold;

[0012] Based on the comparison result between the accumulated heat output data and the preset output threshold, a corresponding target preset speed control strategy is determined from a plurality of preset speed control strategies.

[0013] In an embodiment of the present invention, the preset output threshold can be used to indicate the critical threshold of the cumulative heat output data of different types of gas sources, so that by comparing the cumulative heat output data with the preset output threshold, the fan speed control strategy corresponding to the different types of gas sources is adopted, thereby improving the scope of application and scalability of the present invention.

[0014] In an optional embodiment, the preset output threshold includes: a first preset output threshold; the preset speed control strategy includes: a yellow flame gas speed control strategy, wherein the yellow flame gas speed control strategy is used to indicate a speed control strategy that matches the gas type of the yellow flame gas;

[0015] Based on the comparison result of the accumulated heat output data and the preset output threshold, a corresponding target preset speed control strategy is determined from a plurality of preset speed control strategies, including:

[0016] Obtaining a first comparison result of the accumulated heat output data and a first preset output threshold;

[0017] When it is determined according to the first comparison result that the accumulated heat output data is greater than or equal to the first preset output threshold, the yellow flame gas rotation speed control strategy is determined as the target preset rotation speed control strategy.

[0018] In an embodiment of the present invention, the preset output threshold can be used to indicate the critical threshold of the cumulative heat output data of different types of gas sources, so that by comparing the cumulative heat output data with the preset output threshold, the fan speed control strategy corresponding to the different types of gas sources is adopted, thereby improving the scope of application and scalability of the present invention.

[0019] In an optional embodiment, a second preset output threshold, wherein the second preset output threshold is less than the first preset output threshold; the preset speed control strategy includes: a flame-off gas speed control strategy, wherein the flame-off gas speed control strategy is used to indicate a speed control strategy that matches the gas type of the flame-off gas, and the fan speed corresponding to the flame-off gas speed control strategy is lower than the fan speed corresponding to the yellow flame gas speed control strategy;

[0020] Obtaining a comparison result between the accumulated heat output data and a preset output threshold, and determining a target preset speed control strategy matching the comparison result in the preset speed control strategy, further comprising:

[0021] When it is determined according to the first comparison result that the accumulated heat output data is less than the second preset output threshold, obtaining a second comparison result between the accumulated heat output data and the second preset output threshold;

[0022] When it is determined according to the second comparison result that the accumulated heat output data is less than the second preset output threshold, the lifted flame gas rotation speed control strategy is determined as the target preset rotation speed control strategy.

[0023] In an embodiment of the present invention, when executing the judgment process of the above-mentioned yellow flame gas speed control strategy, if it is determined that the cumulative heat output data is less than the first preset output threshold, the judgment process of the flame separation gas speed control strategy can be executed preferentially. If the execution standard of the flame separation gas is met, the flame separation gas speed control strategy can be directly determined as the target preset speed control strategy, thereby eliminating the need to execute the judgment process of the baseline gas speed control strategy and the flame separation gas speed control strategy corresponding to the second sub-period y, thereby further improving the determination efficiency of the target preset speed control strategy.

[0024] In an optional embodiment, the preset output threshold includes: a third preset output threshold, wherein the third preset output threshold is less than the first preset output threshold and greater than the second preset output threshold; the preset speed control strategy includes: a reference gas speed control strategy, wherein the reference gas speed control strategy is used to indicate a speed control strategy that matches a gas type of a preset reference gas, and the fan speed corresponding to the reference gas speed control strategy is lower than the fan speed corresponding to the yellow flame gas speed control strategy, and is higher than the fan speed corresponding to the flame-off gas speed control strategy;

[0025] Obtaining a comparison result between the accumulated heat output data and a preset output threshold, and determining a target preset speed control strategy matching the comparison result in the preset speed control strategy, further comprising:

[0026] When it is determined according to the second comparison result that the accumulated heat output data is less than the first preset output threshold, obtaining a third comparison result between the accumulated heat output data and the third preset output threshold, and determining according to the third comparison result whether the accumulated heat output data is greater than or equal to the third preset output threshold;

[0027] If yes, the reference gas speed control strategy is determined as the target preset speed control strategy;

[0028] If not, the flame-release gas speed control strategy is determined as the target preset speed control strategy.

[0029] In an embodiment of the present invention, when it is determined that the cumulative heat output data of the gas water heater does not meet the execution standard of yellow flame gas, the judgment process of the baseline gas speed control strategy and the off-flame gas speed control strategy can be executed, thereby increasing the number of preset speed control strategies that can be executed by the gas water heater, and then increasing the types of identifiable gas sources, thereby improving the user experience.

[0030] In an optional implementation, the preset speed control strategy includes: a yellow flame gas speed control strategy;

[0031] Monitors the cumulative heat output data of gas water heaters, including:

[0032] Run the yellow flame gas speed control strategy and collect the water inlet temperature value, water outlet temperature value and water flow value at the preset time interval;

[0033] Determine monitoring data based on water inlet temperature, water outlet temperature and water flow rate values;

[0034] The accumulated heat output data within a preset time period is determined based on the monitoring data.

[0035] In the embodiment of the present invention, it can be seen from the above that the yellow flame gas speed control strategy corresponds to the highest fan speed. Therefore, the yellow flame gas speed control strategy can be set as the default control program within the preset time period of startup to solve the problem of insufficient benchmark air volume in the relevant water heater control scheme.

[0036] In an optional embodiment, the method further includes:

[0037] After the gas water heater is turned on, multiple preset control time periods are set;

[0038] Establish an association between the monitoring data corresponding to the preset control period and the preset speed control strategy.

[0039] In an embodiment of the present invention, the preset time period can be divided into multiple preset control time periods to execute the corresponding judgment process of the preset speed control strategy in different preset control time periods, thereby increasing the number of preset speed control strategies that can be applied theoretically, increasing the types of identifiable gas sources, and improving the accuracy of the identification results for each gas source.

[0040] In an optional implementation, determining the accumulated heat output data within a preset period of time according to the monitoring data includes:

[0041] Calculate the temperature difference between the outlet water temperature and the inlet water temperature within a preset time interval, and calculate the product of the temperature difference and the water flow value within the preset time interval to obtain the heat output value corresponding to the preset time interval;

[0042] The heat output values ​​corresponding to each preset time period are accumulated to obtain cumulative heat output data.

[0043] In an embodiment of the present invention, the preset output threshold can be used to indicate the critical threshold of the cumulative heat output data of different types of gas sources, so that by comparing the cumulative heat output data with the preset output threshold, the fan speed control strategy corresponding to the different types of gas sources is adopted, thereby improving the scope of application and scalability of the present invention.

[0044] In an optional implementation, the above-mentioned determining the cumulative heat output data within a preset period of time according to the monitoring data includes:

[0045] Calculate the temperature difference between the outlet water temperature and the inlet water temperature within a preset time interval, and calculate the product of the temperature difference and the water flow value within the preset time interval to obtain the heat output value corresponding to the preset time interval;

[0046] The heat output values ​​corresponding to each preset time period are accumulated to obtain cumulative heat output data.

[0047] In an embodiment of the present invention, the heat output value of each load point within a preset time period can be accumulated to control the fan speed according to the accumulated heat output data, thereby eliminating the need to wait for the temperature to stabilize before performing air source identification, thereby reducing identification time.

[0048] In a second aspect, the present invention provides a gas water heater control device, the device comprising:

[0049] A monitoring module, used to monitor the accumulated heat output data of the gas water heater after the gas water heater is turned on;

[0050] A determination module, configured to determine a corresponding target preset speed control strategy from among a plurality of preset speed control strategies based on the accumulated heat output data;

[0051] The control module is used to run the target preset speed control strategy to control the fan speed of the gas water heater.

[0052] In a third aspect, the present invention provides a gas water heater, comprising: a memory and a processor, the memory and the processor are communicatively connected to each other, computer instructions are stored in the memory, and the processor executes the gas water heater control method of the first aspect or any corresponding embodiment thereof by executing the computer instructions.

[0053] In a fourth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the gas water heater control method of the first aspect or any corresponding embodiment thereof.

[0054] In a fifth aspect, the present invention provides a computer program product, comprising computer instructions for causing a computer to execute the gas water heater control method of the first aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0056] Figure 1 is a flow chart of a gas water heater control method according to an embodiment of the present invention;

[0057] Figure 2 is a flow chart of another gas water heater control method according to an embodiment of the present invention;

[0058] Figure 3 is a flow chart of another gas water heater control method according to an embodiment of the present invention;

[0059] Figure 4 It is a schematic diagram of the applicable range corresponding to a preset speed control strategy;

[0060] Figure 5 is a schematic diagram of the applicable range corresponding to another preset speed control strategy;

[0061] Figure 6 is a structural block diagram of a gas water heater control device according to an embodiment of the present invention;

[0062] Figure 7 It is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0064] In conjunction with the application scenarios on which the execution of the gas water heater control method depends, the application scenarios are described here.

[0065] As people's living standards improve, the requirements for bathing quality are getting higher and higher, which puts higher requirements on the stability, safety and comfort of water and gas use when using gas water heaters. Therefore, after the water heater is turned on, it is often necessary to match the appropriate operating program so that the air intake can meet the full combustion requirements of the gas while not causing resonance problems due to insufficient air intake.

[0066] In the relevant water heater control scheme, the fan speed control strategy can be matched by identifying the gas type. In order to ensure the accuracy of the gas type identification result, it is usually necessary to identify it after the gas water heater reaches a stable state. However, in the above scheme, since the gas water heater needs to go through a heating process after starting up to reach a stable temperature state, this leads to a high lag in the matching of the fan speed control strategy.

[0067] At the same time, since the operating program suitable for the current combustion state of the gas water heater is not matched to control the fan speed while waiting for the temperature to stabilize, there is a risk of resonance in the gas water heater due to the mismatch between the air outlet and the air intake.

[0068] Based on this, an embodiment of the present invention provides a method for controlling a gas water heater. First, after the gas water heater is turned on, the accumulated heat output data of the gas water heater can be monitored, and based on the accumulated heat output data, a corresponding target preset speed control strategy can be determined from multiple preset speed control strategies. Then, the target preset speed control strategy is run to control the fan speed of the gas water heater, so that the difference in heat capacity between different types of gas can be directly reflected through the accumulated heat output data without the need to identify the gas type, and then the corresponding target preset speed control strategy is matched according to the comparison result. There is no need to wait for the water heater to reach a stable state before performing gas identification. While ensuring the accuracy of the matching control strategy, the waiting time of the matching control strategy is greatly reduced, and the control efficiency of the gas water heater is improved. At the same time, since the target preset speed control strategy that matches the current combustion state of the gas water heater is matched in time, the resonance risk of the gas water heater is eliminated.

[0069] According to an embodiment of the present invention, a gas water heater control method embodiment is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0070] In this embodiment, a gas water heater control method is provided, which can be used for the above-mentioned gas water heaters, such as flue gas water heaters, forced exhaust gas water heaters, balanced gas water heaters, etc. Figure 1 is a flow chart of a gas water heater control method according to an embodiment of the present invention. Figure 1 As shown, the process includes the following steps:

[0071] Step S101, after the gas water heater is turned on, monitor the accumulated heat output data of the gas water heater.

[0072] In an embodiment of the present invention, the accumulated heat output data of the gas water heater can be monitored within a preset period after the gas water heater is turned on. Here, the preset period can be a preset time period after the gas water heater is turned on and generates an output water flow, for example, 40 seconds after the start-up. It should be understood that the preset period can be set according to the model of the gas water heater and actual use requirements, subject to what can be achieved, and the present disclosure does not make specific limitations on this.

[0073] When monitoring the output water flow, the input temperature value T of the output water flow can be monitored by a temperature sensor. 进 And the output temperature value T 出 , and monitor the flow rate L of the output water flow to obtain monitoring data, and calculate the cumulative heat output data based on the monitoring data. The cumulative heat output data is used to indicate the hot water output capacity value of the gas water heater.

[0074] Step S102: determining a corresponding target preset speed control strategy from a plurality of preset speed control strategies based on the accumulated heat output data.

[0075] Step S103, running the target preset speed control strategy to control the fan speed of the gas water heater.

[0076] In an embodiment of the present invention, multiple preset speed control strategies can be preset, and the preset speed control strategy hit by the cumulative heat output data is determined as the target preset speed control strategy. For example, the cumulative heat output data can be compared with a preset output threshold, and when the comparison result is greater than the preset output threshold, the corresponding target preset speed control strategy is preset speed control strategy 1, and when the comparison result is less than the preset output threshold, the target preset speed control strategy corresponding to the comparison result 2 is set to preset speed control strategy 2, wherein the fan speed corresponding to the control program 1 is greater than the control program 2.

[0077] It should be understood that when the fan speed corresponding to the default control program of the gas water heater is higher, the lower the cumulative heat output data of the gas water heater, the lower the matching degree between the fan speed and the gas volume of the current default control program (the fan speed is too high and the air intake is too large, resulting in incomplete gas combustion and low cumulative heat output data). Therefore, the lower the cumulative heat output data of the water heater, the lower the fan speed of the corresponding target preset speed control strategy.

[0078] For example, the preset speed control strategy may include a yellow flame gas speed control strategy, a reference gas speed control strategy and a flame separation gas speed control strategy, among which the fan speed corresponding to the yellow flame gas speed control strategy is the highest, the fan speed corresponding to the reference gas speed control strategy is the second highest, and the fan speed corresponding to the flame separation gas speed control strategy is the lowest.

[0079] It can be seen from the above description that in the embodiment of the present invention, first, after the gas water heater is turned on, the cumulative heat output data of the gas water heater can be monitored, and based on the cumulative heat output data, the corresponding target preset speed control strategy can be determined in multiple preset speed control strategies. Then, the target preset speed control strategy is run to control the fan speed of the gas water heater, so that the difference in heat capacity between different types of gas can be directly reflected through the cumulative heat output data, without the need to identify the gas type, and then the corresponding target preset speed control strategy is matched according to the comparison result, without waiting for the water heater to reach a stable state before performing gas identification. While ensuring the accuracy of the matching control strategy, the waiting time of the matching control strategy is greatly reduced, and the control efficiency of the gas water heater is improved. At the same time, due to the timely matching of the target preset speed control strategy that matches the current combustion state of the gas water heater, the resonance risk of the gas water heater is eliminated.

[0080] In this embodiment, another gas water heater control method is provided, which can be used for the above-mentioned gas water heaters, such as flue gas water heaters, forced exhaust gas water heaters, balanced gas water heaters, etc. Figure 2 is a flow chart of a gas water heater control method according to an embodiment of the present invention. Figure 2 As shown, the process includes the following steps:

[0081] Step S201, after the gas water heater is turned on, monitor the accumulated heat output data of the gas water heater.

[0082] Specifically, the preset speed control strategy includes: yellow flame gas speed control strategy, and the above step S201 includes:

[0083] Step S2011, run the yellow flame gas speed control strategy, and collect water inlet temperature value, water outlet temperature value and water flow value at preset time intervals.

[0084] Step S2012, determining monitoring data according to the water inlet temperature value, the water outlet temperature value and the water flow value.

[0085] Step S2013, determining the accumulated heat output data within a preset period of time according to the monitoring data.

[0086] In the embodiment of the present invention, it can be seen from the above that the yellow flame gas speed control strategy corresponds to the highest fan speed. Therefore, the yellow flame gas speed control strategy can be set as the default control program within the preset time period of startup to solve the problem of insufficient benchmark air volume in the relevant water heater control scheme.

[0087] When collecting the above monitoring data, multiple load points can be taken within a preset period according to a preset time interval, and gas source identification can be performed at each load point to obtain monitoring data corresponding to the load point. For example, the preset time interval can be 0.5s. It should be understood that the preset time interval can be set according to the model of the gas water heater and the actual use requirements, and the present disclosure does not make specific limitations on this.

[0088] In specific implementation, when collecting monitoring data corresponding to a load point, the water temperature value T of the output water flow at the load point can be collected by a temperature sensor. 进 , outlet water temperature value T 出 , and the water flow value L output within the preset time interval corresponding to the load point.

[0089] Next, the cumulative heat output data can be determined based on the monitoring data. Here, the temperature difference between the outlet water temperature value and the inlet water temperature value within the preset time interval can be calculated, and the product of the temperature difference and the water flow value within the preset time interval can be calculated to obtain the heat output value corresponding to the preset time interval. Then, the heat output value corresponding to each preset time period can be accumulated to obtain the cumulative heat output data.

[0090] Specifically, the temperature difference ΔT between the outlet water temperature and the inlet water temperature can be expressed as (T 出 -T 进 ), the product of the temperature difference and the water flow value within the preset time interval ΔT*L can be expressed as (T 出 -T 进 )*L.

[0091] On this basis, when determining the above-mentioned cumulative heat output data, the heat output values ​​corresponding to each load point within the preset time interval can be accumulated. For example, if the number of load points within the above-mentioned preset time period is z, then the cumulative heat output data Zn can be expressed as Zn=∑ z (T 出 -T 进 )*L.

[0092] In an embodiment of the present invention, the heat output value of each load point within a preset time period can be accumulated to control the fan speed according to the accumulated heat output data, thereby eliminating the need to wait for the temperature to stabilize before performing air source identification, thereby reducing identification time.

[0093] Step S202: Based on the accumulated heat output data, determine a corresponding target preset speed control strategy from a plurality of preset speed control strategies. Figure 1 Step S102 of the illustrated embodiment will not be described in detail here.

[0094] Step S203: Run the target preset speed control strategy to control the fan speed of the gas water heater. Figure 1 Step S103 of the illustrated embodiment will not be described in detail here.

[0095] In the embodiment of the present invention, it can be seen from the above that the yellow flame gas speed control strategy corresponds to the highest fan speed. Therefore, the yellow flame gas speed control strategy can be set as the default control program within the preset time period of startup to solve the resonance problem caused by insufficient benchmark air volume in the relevant water heater control scheme.

[0096] In some optional implementations, the above step S201 further includes:

[0097] Step S11, after the gas water heater is turned on, a plurality of preset control time periods are set.

[0098] Step S12: establishing a correlation relationship between the monitoring data corresponding to the preset control period and the preset speed control strategy.

[0099] In an embodiment of the present invention, the preset control period may be a sub-period within the above-mentioned preset period. Here, based on the fan speed corresponding to the preset speed control strategy, the preset period may be assigned associated sub-periods within the preset period. For example, the judgment process corresponding to the preset speed control strategy with a high fan speed may be preferentially executed.

[0100] Specifically, when the preset speed control strategy includes the above-mentioned yellow flame gas speed control strategy, the reference gas speed control strategy, and the flame-off gas speed control strategy, the preset time period can be divided into a first sub-time period x and a second sub-time period y. Here, an association relationship between the first sub-time period x and the yellow flame gas speed control strategy can be established, and an association relationship between the second sub-time period y and the reference gas speed control strategy and the flame-off gas speed control strategy can be established.

[0101] Then, the judgment process of the yellow flame gas speed control strategy can be executed in the first sub-period. If the accumulated heat output data corresponding to the first sub-period does not meet the standard for executing the yellow flame gas speed control strategy, the judgment process of the reference gas speed control strategy and the flame-off gas speed control strategy is executed in the second sub-period.

[0102] In an embodiment of the present invention, the preset time period can be divided into multiple preset control time periods to execute the corresponding judgment process of the preset speed control strategy in different preset control time periods, thereby increasing the number of preset speed control strategies that can be applied theoretically, increasing the types of identifiable gas sources, and improving the accuracy of the identification results for each gas source.

[0103] In this embodiment, another gas water heater control method is provided, which can be used for the above-mentioned gas water heaters, such as flue gas water heaters, forced exhaust gas water heaters, balanced gas water heaters, etc. Figure 3 is a flow chart of a gas water heater control method according to an embodiment of the present invention. Figure 3 As shown, the process includes the following steps:

[0104] Step S301: After the gas water heater is turned on, monitor the accumulated heat output data of the gas water heater. Figure 1 Step S101 of the illustrated embodiment will not be described in detail here.

[0105] Step S302 : determining a corresponding target preset speed control strategy from a plurality of preset speed control strategies based on the accumulated heat output data.

[0106] Specifically, the above step S302 includes:

[0107] Step S3021, obtaining a preset output threshold.

[0108] Step S3022: Based on the comparison result between the accumulated heat output data and the preset output threshold, a corresponding target preset speed control strategy is determined from a plurality of preset speed control strategies.

[0109] In an embodiment of the present invention, the preset output threshold value can be used to indicate a critical threshold value of the accumulated heat output data of different types of gas sources, for example, the preset output threshold value can be a preset output threshold value. Here, the accumulated heat output data can be compared with the preset output threshold value, and when the comparison result is greater than the preset output threshold value, the corresponding target preset speed control strategy is the preset speed control strategy 1, and when the comparison result is less than the preset output threshold value, the target preset speed control strategy corresponding to the comparison result 2 is set to the preset speed control strategy 2, wherein the fan speed corresponding to the control program 1 is greater than the control program 2.

[0110] It should be understood that when the fan speed corresponding to the default control program of the gas water heater is higher, the lower the cumulative heat output data of the gas water heater, the lower the matching degree between the fan speed and the gas volume of the current default control program (the fan speed is too high and the air intake is too large, resulting in incomplete gas combustion and low cumulative heat output data). Therefore, the lower the cumulative heat output data of the water heater, the lower the fan speed of the corresponding target preset speed control strategy.

[0111] For example, the preset speed control strategy may include a yellow flame gas speed control strategy, a reference gas speed control strategy, and a flame-off gas speed control strategy, wherein the yellow flame gas speed control strategy corresponds to the highest fan speed, the reference gas speed control strategy corresponds to the second highest fan speed, and the flame-off gas speed control strategy corresponds to the lowest fan speed. Therefore, corresponding preset output thresholds may be set for different speed control strategies.

[0112] Step S303: Run the target preset speed control strategy to control the fan speed of the gas water heater. Figure 1 Step S103 of the illustrated embodiment will not be described in detail here.

[0113] In an embodiment of the present invention, the preset output threshold can be used to indicate the critical threshold of the cumulative heat output data of different types of gas sources, so that by comparing the cumulative heat output data with the preset output threshold, the fan speed control strategy corresponding to the different types of gas sources is adopted, thereby improving the scope of application and scalability of the present invention.

[0114] In some optional implementations, the preset output threshold includes: a first preset output threshold; the preset speed control strategy includes: a yellow flame gas speed control strategy, wherein the yellow flame gas speed control strategy is used to indicate a speed control strategy that matches the gas type of the yellow flame gas, and the above step S302 further includes:

[0115] Step S21, obtaining a first comparison result between the accumulated heat output data and a first preset output threshold;

[0116] Step S22, when it is determined according to the first comparison result that the accumulated heat output data is greater than or equal to the first preset output threshold, the yellow flame gas speed control strategy is determined as the target preset speed control strategy.

[0117] In the embodiment of the present invention, when the default control program after the gas water heater is turned on is the above-mentioned yellow flame gas speed control strategy, the yellow flame gas speed control strategy can be the yellow flame gas speed control strategy, and the first preset output threshold can be set to B1. At this time, the judgment process of the yellow flame gas speed control strategy can be entered. It can be seen from the above that the judgment process of the yellow flame gas speed control strategy corresponds to the first sub-period x in the above-mentioned preset time period, wherein the first sub-period x contains x load points. Then, the cumulative heat output data Bn corresponding to the first sub-period can be expressed as Bn=∑ z (T 出 -T 进 )*L.

[0118] Here, if Figure 4 The figure shows a schematic diagram of the applicable range corresponding to a preset speed control strategy, wherein the horizontal axis is the load gear corresponding to the gas water heater, which is divided into 0-9 gears. It should be understood that the higher the gear, the more sufficient the gas supply of the gas water heater, and the higher the corresponding cumulative heat output data in the vertical axis.

[0119] Depend on Figure 4 It can be seen that if the cumulative heat output data is greater than or equal to the first preset output threshold value, that is, Bn≥B1, according to the first comparison result Bn, it means that the fan speed at this time meets the execution standard of the yellow flame gas speed control strategy, and the yellow flame gas speed control strategy is determined as the target preset speed control strategy (that is, Figure 4 A1 program in the program) to maintain the current fan speed to run the gas water heater.

[0120] In addition, if it is determined based on the first comparison result that Bn<B1, it means that the fan speed at this time may be too fast, resulting in incomplete combustion of the gas, which in turn affects the heat output value of the water heater. At this time, it is necessary to perform a judgment process for the preset speed control strategy with a lower fan speed, that is, the judgment process of the reference gas speed control strategy and the flame-off gas speed control strategy corresponding to the second sub-period y mentioned above. The specific judgment process is as follows and will not be repeated here.

[0121] In an embodiment of the present invention, since the default control program is the yellow flame gas speed control strategy, that is, the above-mentioned yellow flame gas speed control strategy, when it is determined according to the first comparison result that the cumulative heat output data is greater than or equal to the first preset output threshold, it can be determined that the fan speed at this time meets the execution standard of the yellow flame gas speed control strategy, and continue to execute the yellow flame gas speed control strategy, thereby improving the stability of the user's water and gas use after the gas water heater is in stable operation, thereby improving the user's usage experience.

[0122] In some optional embodiments, the preset output threshold includes: a second preset output threshold, wherein the second preset output threshold is less than the first preset output threshold; the preset speed control strategy includes: a flame-off gas speed control strategy, wherein the flame-off gas speed control strategy is used to indicate a speed control strategy that matches the gas type of the flame-off gas, and the fan speed corresponding to the flame-off gas speed control strategy is lower than the fan speed corresponding to the yellow flame gas speed control strategy; the above step S302 also includes:

[0123] Step S31, when it is determined according to the first comparison result that the accumulated heat output data is less than the second preset output threshold, a second comparison result between the accumulated heat output data and the second preset output threshold is obtained.

[0124] Step S32: when it is determined according to the second comparison result that the accumulated heat output data is less than the second preset output threshold, the flame-lift gas rotation speed control strategy is determined as the target preset rotation speed control strategy.

[0125] In the embodiment of the present invention, the second preset output threshold can be recorded as B4. Figure 5 The figure shows a schematic diagram of the applicable range corresponding to another preset speed control strategy, wherein, when executing the judgment process of the above-mentioned yellow flame gas speed control strategy, if it is determined that the cumulative heat output data Bn<B1, the judgment process of the flame gas speed control strategy can be executed preferentially.

[0126] In specific implementation, if it is determined according to the second comparison result that the cumulative heat output data is less than the second preset output threshold, that is, Bn<B4, the flame-release gas speed control strategy can be directly determined as the target preset speed control strategy (that is, Figure 5 A3 program in the above), without executing the judgment process of the reference gas speed control strategy and the flame-off gas speed control strategy corresponding to the second sub-period y.

[0127] In an embodiment of the present invention, when executing the judgment process of the above-mentioned yellow flame gas speed control strategy, if it is determined that the cumulative heat output data is less than the first preset output threshold, the judgment process of the flame separation gas speed control strategy can be executed preferentially. If the execution standard of the flame separation gas is met, the flame separation gas speed control strategy can be directly determined as the target preset speed control strategy, thereby eliminating the need to execute the judgment process of the baseline gas speed control strategy and the flame separation gas speed control strategy corresponding to the second sub-period y, thereby further improving the determination efficiency of the target preset speed control strategy.

[0128] In some optional embodiments, the preset output threshold includes: a third preset output threshold, wherein the third preset output threshold is less than the first preset output threshold and greater than the second preset output threshold; the preset speed control strategy includes: a reference gas speed control strategy, wherein the reference gas speed control strategy is used to indicate a speed control strategy that matches a gas type of a preset reference gas, and the fan speed corresponding to the reference gas speed control strategy is lower than the fan speed corresponding to the yellow flame gas speed control strategy, and is higher than the fan speed corresponding to the flame-off gas speed control strategy, and the above step S302 also includes:

[0129] Step S41, when it is determined according to the second comparison result that the cumulative heat output data is less than the first preset output threshold, obtain the third comparison result of the cumulative heat output data and the third preset output threshold, and determine whether the cumulative heat output data is greater than or equal to the third preset output threshold according to the third comparison result; if so, execute step S42, if not, execute step S43.

[0130] Step S42: determining the reference air speed control strategy as the target preset speed control strategy.

[0131] Step S43, determining the flame-release gas speed control strategy as the target preset speed control strategy.

[0132] In the embodiment of the present invention, when it is determined that Bn<B1, the judgment process of the reference gas speed control strategy and the flame-off gas speed control strategy corresponding to the second sub-period y can be executed. Here, the reference gas speed control strategy is the above-mentioned reference gas speed control strategy, and the third preset output threshold value can be recorded as B3, wherein, Figure 4 It can be seen that B1>B3>B4.

[0133] In specific implementation, the second sub-period y contains y load points, and the cumulative heat output data Cn corresponding to the second sub-period can be expressed as Cn=∑ y (T 出 -T 进 )*L. Figure 4 It can be seen that if it is determined according to the third comparison result that the cumulative heat output data is greater than or equal to the third preset output threshold, that is, Cn≥B3, then the reference gas speed control strategy (i.e. Figure 4 In the A2 procedure in the process, the target preset speed control strategy is determined as the target preset speed control strategy, and the judgment process is exited to run the target preset speed control strategy. In addition, if it is determined according to the third comparison result that the cumulative heat output data is less than the third preset output threshold value, that is, Cn<B3, the flame-off gas speed control strategy is determined as the target preset speed control strategy, and the judgment process is exited to run the target preset speed control strategy.

[0134] In an embodiment of the present invention, when it is determined that the cumulative heat output data of the gas water heater does not meet the execution standard of yellow flame gas, the judgment process of the baseline gas speed control strategy and the off-flame gas speed control strategy can be executed, thereby increasing the number of preset speed control strategies that can be executed by the gas water heater, and then increasing the types of identifiable gas sources, thereby improving the user experience.

[0135] In summary, in the embodiment of the present invention, first, after the gas water heater is turned on, the accumulated heat output data of the gas water heater can be monitored, and based on the accumulated heat output data, the corresponding target preset speed control strategy can be determined from multiple preset speed control strategies. Then, the target preset speed control strategy is run to control the fan speed of the gas water heater, so that the difference in heat capacity between different types of gas can be directly reflected through the accumulated heat output data, without the need to identify the gas type, and then the corresponding target preset speed control strategy is matched according to the comparison result, without waiting for the water heater to reach a stable state before performing gas identification. While ensuring the accuracy of the matching control strategy, the waiting time of the matching control strategy is greatly reduced, and the control efficiency of the gas water heater is improved. At the same time, since the target preset speed control strategy that matches the current combustion state of the gas water heater is matched in time, the resonance risk of the gas water heater is eliminated.

[0136] In this embodiment, a gas water heater control device is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made are not repeated here. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0137] This embodiment provides a gas water heater control device, such as Figure 6 As shown, including:

[0138] The monitoring module 601 is used to monitor the accumulated heat output data of the gas water heater after the gas water heater is turned on;

[0139] A determination module 602, configured to determine a corresponding target preset speed control strategy from among a plurality of preset speed control strategies based on the accumulated heat output data;

[0140] The control module 603 is used to run the target preset speed control strategy to control the fan speed of the gas water heater.

[0141] In some optional implementations, the determination module 602 is further configured to:

[0142] Get the preset output threshold;

[0143] Based on the comparison result between the accumulated heat output data and the preset output threshold, a corresponding target preset speed control strategy is determined from a plurality of preset speed control strategies.

[0144] In some optional implementations, the preset output threshold includes: a first preset output threshold; the preset speed control strategy includes: a yellow flame gas speed control strategy, wherein the yellow flame gas speed control strategy is used to indicate a speed control strategy that matches the gas type of the yellow flame gas; the determination module 602 is further used to:

[0145] Obtaining a first comparison result of the accumulated heat output data and a first preset output threshold;

[0146] When it is determined according to the first comparison result that the accumulated heat output data is greater than or equal to the first preset output threshold, the yellow flame gas rotation speed control strategy is determined as the target preset rotation speed control strategy.

[0147] In some optional embodiments, the preset output threshold includes: a second preset output threshold, wherein the second preset output threshold is less than the first preset output threshold; the preset speed control strategy includes: a flame-off gas speed control strategy, wherein the flame-off gas speed control strategy is used to indicate a speed control strategy that matches the gas type of the flame-off gas, and the fan speed corresponding to the flame-off gas speed control strategy is lower than the fan speed corresponding to the yellow flame gas speed control strategy; the determination module 602 is further used to:

[0148] When it is determined according to the first comparison result that the accumulated heat output data is less than the second preset output threshold, obtaining a second comparison result between the accumulated heat output data and the second preset output threshold;

[0149] When it is determined according to the second comparison result that the accumulated heat output data is less than the second preset output threshold, the lifted flame gas rotation speed control strategy is determined as the target preset rotation speed control strategy.

[0150] In some optional embodiments, the preset output threshold includes: a third preset output threshold, wherein the third preset output threshold is less than the first preset output threshold and greater than the second preset output threshold; the preset speed control strategy includes: a reference gas speed control strategy, wherein the reference gas speed control strategy is used to indicate a speed control strategy that matches a gas type of a preset reference gas, and the fan speed corresponding to the reference gas speed control strategy is lower than the fan speed corresponding to the yellow flame gas speed control strategy, and is higher than the fan speed corresponding to the flame-off gas speed control strategy; the determination module 602 is further used to:

[0151] When it is determined according to the second comparison result that the accumulated heat output data is less than the first preset output threshold, obtaining a third comparison result between the accumulated heat output data and the third preset output threshold, and determining according to the third comparison result whether the accumulated heat output data is greater than or equal to the third preset output threshold;

[0152] If yes, the reference gas speed control strategy is determined as the target preset speed control strategy;

[0153] If not, the flame-release gas speed control strategy is determined as the target preset speed control strategy.

[0154] In some optional implementations, the preset speed control strategy includes: yellow flame gas speed control strategy; the monitoring module 601 is also used to:

[0155] Run the yellow flame gas speed control strategy, and collect the water inlet temperature value, water outlet temperature value and water flow value at the preset time interval;

[0156] Determine monitoring data based on water inlet temperature, water outlet temperature and water flow rate values;

[0157] The accumulated heat output data within a preset time period is determined based on the monitoring data.

[0158] In some optional embodiments, the device is also used for:

[0159] After the gas water heater is turned on, multiple preset control time periods are set;

[0160] Establishing a correlation relationship between the monitoring data corresponding to the preset control period and the preset speed control strategy;

[0161] In some optional implementations, the monitoring module 601 is further configured to:

[0162] Calculate the temperature difference between the outlet water temperature and the inlet water temperature within a preset time interval, and calculate the product of the temperature difference and the water flow value within the preset time interval to obtain the heat output value corresponding to the preset time interval;

[0163] The heat output values ​​corresponding to each preset time period are accumulated to obtain cumulative heat output data.

[0164] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0165] The gas water heater control device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0166] The embodiment of the present invention also provides a gas water heater having the above Figure 6 Gas water heater controls shown.

[0167] See also Figure 7 , Figure 7 is a schematic diagram of the structure of a gas water heater provided by an optional embodiment of the present invention, such as Figure 7 As shown, the gas water heater includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. The various components are connected to each other using different buses for communication, and can be installed on a common motherboard or installed in other ways as needed. The processor can process instructions executed in the gas water heater, including instructions stored in or on the memory to display graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple gas water heaters can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 7 A processor 10 is taken as an example.

[0168] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0169] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0170] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required by at least one function; the data storage area may store data created according to the use of the gas water heater, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the gas water heater via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0171] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0172] The gas water heater further comprises a communication interface 30 for the gas water heater to communicate with other devices or a communication network.

[0173] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0174] A part of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of the computer program instruction in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc., and accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium accessible to the computer.

[0175] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the accompanying description.

Claims

1. A gas water heater control method, characterized in that: The method comprises: After the gas water heater is turned on, monitoring the accumulated heat output data of the gas water heater; Based on the accumulated heat output data, determining a corresponding target preset speed control strategy from a plurality of preset speed control strategies; The target preset speed control strategy is run to control the fan speed of the gas water heater.

2. The method according to claim 1, characterized in that The step of determining a corresponding target preset speed control strategy from a plurality of preset speed control strategies based on the accumulated heat output data includes: Get the preset output threshold; Based on the comparison result between the accumulated heat output data and the preset output threshold, a corresponding target preset speed control strategy is determined from a plurality of preset speed control strategies.

3. The method according to claim 2, characterized in that The preset output threshold includes: a first preset output threshold; the preset speed control strategy includes: a yellow flame gas speed control strategy, wherein the yellow flame gas speed control strategy is used to indicate a speed control strategy that matches the gas type of the yellow flame gas; The determining of a corresponding target preset speed control strategy from a plurality of preset speed control strategies based on a comparison result of the accumulated heat output data with a preset output threshold comprises: Obtaining a first comparison result between the accumulated heat output data and the first preset output threshold; When it is determined according to the first comparison result that the accumulated heat output data is greater than or equal to the first preset output threshold, the yellow flame gas rotation speed control strategy is determined as the target preset rotation speed control strategy.

4. The method according to claim 3, characterized in that The preset output threshold includes: a second preset output threshold, wherein the second preset output threshold is less than the first preset output threshold; the preset speed control strategy includes: a flame-off gas speed control strategy, wherein the flame-off gas speed control strategy is used to indicate a speed control strategy that matches the gas type of the flame-off gas, and the fan speed corresponding to the flame-off gas speed control strategy is lower than the fan speed corresponding to the yellow flame gas speed control strategy; The obtaining of the comparison result between the accumulated heat output data and the preset output threshold value, and determining a target preset speed control strategy matching the comparison result in the preset speed control strategy, further includes: When it is determined according to the first comparison result that the accumulated heat output data is less than the second preset output threshold, obtaining a second comparison result between the accumulated heat output data and the second preset output threshold; When it is determined according to the second comparison result that the accumulated heat output data is less than the second preset output threshold, the lifted flame gas rotation speed control strategy is determined as the target preset rotation speed control strategy.

5. The method according to claim 4, characterized in that The preset output threshold includes: a third preset output threshold, wherein the third preset output threshold is less than the first preset output threshold and greater than the second preset output threshold; the preset speed control strategy includes: a reference gas speed control strategy, wherein the reference gas speed control strategy is used to indicate a speed control strategy that matches a gas type of a preset reference gas, and the fan speed corresponding to the reference gas speed control strategy is lower than the fan speed corresponding to the yellow flame gas speed control strategy, and is higher than the fan speed corresponding to the flame-off gas speed control strategy; The obtaining of the comparison result between the accumulated heat output data and the preset output threshold value, and determining a target preset speed control strategy matching the comparison result in the preset speed control strategy, further includes: When it is determined according to the second comparison result that the accumulated heat output data is less than the first preset output threshold, obtaining a third comparison result between the accumulated heat output data and the third preset output threshold, and determining according to the third comparison result whether the accumulated heat output data is greater than or equal to the third preset output threshold; If yes, the reference gas speed control strategy is determined as the target preset speed control strategy; If not, the flame lift gas speed control strategy is determined as the target preset speed control strategy.

6. The method according to claim 1, characterized in that The preset speed control strategy includes: yellow flame gas speed control strategy; The monitoring of the accumulated heat output data of the gas water heater comprises: Run the yellow flame gas speed control strategy, and collect water inlet temperature value, water outlet temperature value and water flow value at preset time intervals; Determine monitoring data according to the water inlet temperature value, water outlet temperature value and water flow value; The accumulated heat output data within a preset time period is determined according to the monitoring data.

7. The method according to claim 6, characterized in that The method further comprises: After the gas water heater is turned on, a plurality of preset control time periods are set; An association relationship between the monitoring data corresponding to the preset control period and the preset speed control strategy is established.

8. The method according to claim 6, characterized in that The step of determining the accumulated heat output data within the preset period according to the monitoring data comprises: Calculating the temperature difference between the outlet water temperature value and the inlet water temperature value within the preset time interval, and calculating the product of the temperature difference and the water flow value within the preset time interval to obtain the heat output value corresponding to the preset time interval; The heat output value corresponding to each of the preset time periods is accumulated to obtain the accumulated heat output data.

9. A gas water heater control device, characterized in that: The device comprises: A monitoring module, used for monitoring the accumulated heat output data of the gas water heater after the gas water heater is turned on; a determination module, configured to determine a corresponding target preset speed control strategy from among a plurality of preset speed control strategies based on the accumulated heat output data; A control module is used to run the target preset speed control strategy to control the fan speed of the gas water heater.

10. A gas water heater, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the water heater control method according to any one of claims 1 to 8 by executing the computer instructions.

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