Control method, system and equipment of gas water heater, medium and program product

Abstract

The invention provides a control method, system and device for a gas water heater, a medium and a program product, and the control method comprises the steps that when the water flow of the gas water heater is larger than or equal to the starting water flow of the gas water heater and it is detected that the gas water heater does not have a fault, the gas water heater is started; after a fan of the gas water heater is controlled to operate for a first preset time according to the first rotating speed, the fan is controlled to operate according to a second rotating speed; a proportional valve of the gas water heater is controlled to be opened, and the gas water heater is ignited; and whether the gas water heater senses flames or not is judged, and if yes, it is determined that the gas water heater is in a stable combustion state at the corresponding load. By detecting the water flow of the gas water heater and controlling the rotating speed of the fan and the proportional valve, it is guaranteed that the gas water heater is in a stable combustion state at the corresponding load, and the combustion stability of the gas water heater is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of gas water heater control, and in particular to a control method, system, device, medium and program product for a gas water heater. Background Art

[0002] Current gas water heaters have unstable combustion during the combustion process and cannot meet the normal operation requirements of combustion water heaters. In addition, when the water flow rate is too small, the gas water heater will continue to burn, causing damage to the gas water heater. Summary of the invention

[0003] The technical problem to be solved by the present disclosure is to overcome the defect of unstable combustion of gas water heaters in the prior art during the combustion process, and to provide a control method, system, equipment, medium and program product for a gas water heater.

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

[0005] A first aspect of the present disclosure provides a control method for a gas water heater, the control method comprising:

[0006] In response to the water flow of the gas water heater being greater than or equal to the startup water flow of the gas water heater and detecting that the gas water heater has no fault, controlling the fan of the gas water heater to operate at a first speed for a first preset time, and then controlling the fan to operate at a second speed;

[0007] Controlling the proportional valve of the gas water heater to open and igniting the gas water heater;

[0008] It is determined whether the gas water heater senses a flame, and if so, it is determined that the gas water heater is in a stable combustion state under the corresponding load.

[0009] Preferably, the control method further includes:

[0010] If it is determined that the gas water heater does not sense flame, it is determined whether the number of ignitions is less than or equal to the preset number of ignitions. If so, the proportional valve is controlled to close, and after waiting for the first preset time, the step of controlling the fan of the gas water heater to run at the first speed for the first preset time is returned.

[0011] Preferably, after the step of determining that the gas water heater is in a stable combustion state under the corresponding load, the control method further comprises:

[0012] Determine whether the water flow is greater than or equal to the shutdown water flow of the gas water heater. If so, determine whether the gas water heater senses a flame. If so, determine whether the combustion time of the gas water heater is less than or equal to a second preset time. If so, determine that the gas water heater is in a stable combustion state under the corresponding load; if it is determined that the combustion time of the gas water heater is greater than the second preset time, control the proportional valve to close, the gas water heater outputs a timeout fault prompt message, and controls the fan to run at a third speed for a third preset time and then shuts down the fan.

[0013] Preferably, the control method further includes:

[0014] If the water flow rate is less than the shutdown water flow rate of the gas water heater, the proportional valve is controlled to close, and the fan is controlled to run at a third speed for a third preset time and then the fan is turned off;

[0015] and / or,

[0016] The control method further comprises:

[0017] If it is determined that the water flow rate is greater than or equal to the shutdown water flow rate of the gas water heater and the gas water heater does not sense a flame, the proportional valve is controlled to close, the gas water heater is controlled to output a flameout fault prompt message, and the fan is controlled to run at a third speed for a third preset time and then shut down.

[0018] Preferably, the control method further includes:

[0019] If it is determined that the number of ignitions is greater than the preset number of ignitions, the proportional valve is controlled to be closed, the gas water heater is controlled to output a fault prompt message of ignition failure, the fan is controlled to run at a third speed for a third preset time and then be turned off, and the gas water heater is controlled to be powered off or shut down. After the fault code is canceled, the gas water heater is controlled to be powered on and turned on to restore the gas water heater to a standby state.

[0020] Preferably, the control method further includes:

[0021] In response to the water flow of the gas water heater being greater than or equal to the startup water flow of the gas water heater, and detecting that the gas water heater has a fault, controlling the gas water heater to output corresponding fault prompt information, and controlling the gas water heater to be powered off or shut down, and after canceling the fault code, controlling the gas water heater to be powered on and turned on, so that the gas water heater is restored to a standby state;

[0022] and / or,

[0023] The control method further comprises:

[0024] In response to the water flow of the gas water heater being less than the startup water flow of the gas water heater, the gas water heater is controlled to be in a standby state.

[0025] A second aspect of the present disclosure provides a control system for a gas water heater, the control system comprising:

[0026] a first control module, for controlling a fan of the gas water heater to operate at a first speed for a first preset time in response to a water flow rate of the gas water heater being greater than or equal to a startup water flow rate of the gas water heater and detecting that the gas water heater has no faults, and then controlling the fan to operate at a second speed;

[0027] A second control module, used to control the proportional valve of the gas water heater to open and ignite the gas water heater;

[0028] A first judging module is used to judge whether the gas water heater senses flame, and if so, call a determining module;

[0029] The determination module is used to determine whether the gas water heater is in a stable combustion state under the corresponding load.

[0030] Preferably, the control system further comprises:

[0031] A second judgment module is used to judge whether the number of ignitions is less than or equal to a preset number of ignitions if it is judged that the gas water heater does not sense a flame, and if so, call a third control module;

[0032] The third control module is used to control the proportional valve to close, and after waiting for the first preset time, return to the step of controlling the fan of the gas water heater to run at the first speed for the first preset time.

[0033] Preferably, the control system further comprises:

[0034] A third judgment module is used to judge whether the water flow is greater than or equal to the shutdown water flow of the gas water heater, and if so, calling the fourth judgment module;

[0035] The fourth judgment module is used to judge whether the gas water heater senses flame, and if so, call the fifth judgment module;

[0036] The fifth judgment module is used to judge whether the combustion time of the gas water heater is less than or equal to the second preset time, and if so, call the determination module;

[0037] The determination module is used to determine that the gas water heater is in a stable combustion state under the corresponding load;

[0038] The fourth control module is used to control the proportional valve to close if it is determined that the combustion time of the gas water heater is greater than the second preset time, and the gas water heater outputs a timeout fault prompt message, and controls the fan to run at a third speed for a third preset time and then shut down the fan.

[0039] Preferably, the control system further comprises:

[0040] a fifth control module, configured to control the proportional valve to close if the water flow rate is less than the shutdown water flow rate of the gas water heater, and control the fan to run at a third speed for a third preset time and then shut down the fan;

[0041] and / or,

[0042] The control system further comprises:

[0043] The sixth control module is used to control the proportional valve to close, control the gas water heater to output a flameout fault prompt message, and control the fan to run at a third speed for a third preset time and then turn off the fan if it is determined that the water flow rate is greater than or equal to the shutdown water flow rate of the gas water heater and the gas water heater does not sense a flame.

[0044] Preferably, the control system further comprises:

[0045] The seventh control module is used to control the proportional valve to close if it is determined that the number of ignitions is greater than the preset number of ignitions, control the gas water heater to output a fault prompt message of ignition failure, control the fan to run at a third speed for a third preset time and then turn off the fan, and control the gas water heater to power off or shut down. After canceling the fault code, control the gas water heater to power on and start up, so that the gas water heater returns to a standby state.

[0046] Preferably, the control system further comprises:

[0047] an eighth control module, for controlling the gas water heater to output corresponding fault prompt information in response to the water flow rate of the gas water heater being greater than or equal to the startup water flow rate of the gas water heater and detecting that the gas water heater has a fault, and controlling the gas water heater to power off or shut down, and after canceling the fault code, controlling the gas water heater to power on and start up, so that the gas water heater returns to a standby state;

[0048] and / or,

[0049] The control system further comprises:

[0050] The ninth control module is used to control the gas water heater to be in a standby state in response to the water flow of the gas water heater being less than the startup water flow of the gas water heater.

[0051] A third aspect of the present disclosure provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and used to run on the processor, wherein the processor implements the control method of the gas water heater described in the first aspect when executing the computer program.

[0052] A fourth aspect of the present disclosure provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the control method of the gas water heater described in the first aspect is implemented.

[0053] A fifth aspect of the present disclosure provides a computer program product, including a computer program, which, when executed by a processor, implements the control method for the gas water heater as described in the first aspect.

[0054] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.

[0055] The positive and progressive effects of this disclosure are:

[0056] The present invention ensures that the gas water heater is in a stable combustion state under the corresponding load by detecting the water flow of the gas water heater and combining the control of the fan speed and the proportional valve, thereby improving the combustion stability of the gas water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 This is a first flow chart of the control method for a gas water heater provided in Embodiment 1 of the present disclosure.

[0058] Figure 2 This is a second flow chart of the control method for the gas water heater provided in Embodiment 1 of the present disclosure.

[0059] Figure 3 A module schematic diagram of a control system of a gas water heater provided in Example 1 of the present disclosure.

[0060] Figure 4 This is a schematic diagram of the structure of an electronic device for implementing a control method for a gas water heater according to Embodiment 3 of the present disclosure. DETAILED DESCRIPTION

[0061] The present disclosure is further described below by way of examples, but the present disclosure is not limited to the scope of the examples.

[0062] Prefixes such as "first" and "second" are used in the embodiments of the present disclosure only to distinguish different description objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects. The use of prefixes such as ordinal numbers to distinguish description objects in the embodiments of the present disclosure does not constitute a limitation on the described objects. For the statement of the described objects, please refer to the description in the context of the claims or embodiments, and no unnecessary limitation should be constituted due to the use of such prefixes. In addition, in the description of the present embodiment, unless otherwise specified, the meaning of "plurality" is two or more.

[0063] In the embodiments of the present disclosure, the collection, storage, use, processing, transmission, provision and disclosure of user personal information involved are in compliance with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0064] Example 1

[0065] Figure 1 This is a flow chart of a control method for a gas water heater provided in Example 1 of the present disclosure, such as Figure 1 As shown, the control method includes:

[0066] S1, in response to the water flow of the gas water heater being greater than or equal to the startup water flow of the gas water heater, and detecting that the gas water heater has no fault, controlling the fan of the gas water heater to run at a first speed for a first preset time, and then controlling the fan to run at a second speed;

[0067] S2, control the proportional valve of the gas water heater to open, and ignite the gas water heater;

[0068] In this embodiment, the proportional valve is controlled to open according to a preset current, and the gas water heater is ignited at the same time.

[0069] S3, determining whether the gas water heater senses flame, if so, executing step S4;

[0070] S4. Determine that the gas water heater is in a stable combustion state under the corresponding load.

[0071] In this embodiment, the gas water heater is in a powered-on state. By turning on the power button, the gas water heater is in a standby state. At this time, the gas water heater keeps detecting whether the water flow is greater than or equal to the startup water flow L1 of the gas water heater.

[0072] In this embodiment, the startup water flow rate L1 of the gas water heater is set according to actual conditions and is not specifically limited here.

[0073] This embodiment ensures that the gas water heater is in a stable combustion state under the corresponding load by detecting the water flow of the gas water heater and combining the control of the fan speed and the proportional valve, thereby improving the combustion stability of the gas water heater.

[0074] In an optional embodiment, the control method further includes:

[0075] S5. If it is determined that the gas water heater does not sense flame, determine whether the number of ignitions is less than or equal to the preset number of ignitions. If so, execute step S6;

[0076] In this embodiment, the flame is sensed by the sensing needle in the gas water heater. Specifically, when the sensing needle senses being burned by the flame, there is current in the sensing needle. At this time, it is determined that the gas water heater senses the flame. When the sensing needle does not generate current, it is determined that the gas water heater does not sense the flame.

[0077] S6, controlling the proportional valve to close, and after waiting for a first preset time, returning to step S1 to control the fan of the gas water heater to run at a first speed for a first preset time.

[0078] In an optional embodiment, after step S4, the control method further includes:

[0079] S7, determining whether the water flow rate is greater than or equal to the shutdown water flow rate of the gas water heater, if so, executing step S8;

[0080] S8, determining whether the gas water heater senses flame, if so, executing step S9;

[0081] S9, determining whether the combustion time of the gas water heater is less than or equal to the second preset time, if so, executing step S4 (i.e. determining that the gas water heater is in a stable combustion state under the corresponding load); if not (i.e. determining that the combustion time of the gas water heater is greater than the second preset time), executing step S10;

[0082] S10, controlling the proportional valve to close, the gas water heater outputting a timeout fault prompt message, and controlling the fan to run at a third speed for a third preset time and then shutting down the fan.

[0083] In an optional embodiment, the control method further includes:

[0084] S11, if the water flow rate is less than the shutdown water flow rate of the gas water heater, the proportional valve is controlled to close, and the fan is controlled to run at a third speed for a third preset time and then the fan is turned off;

[0085] In this embodiment, the preset ignition times, the first preset time, the shutdown water flow L2 of the gas water heater, the second preset time, the third preset time, the first speed, the second speed, and the third speed are all set according to actual conditions and are not specifically limited here.

[0086] It should be noted that the first speed is greater than the second speed. The fan is controlled to operate at the first speed in order to discharge foreign matter in the gas water heater or exhaust gas from the previous combustion; the fan is controlled to operate at the second speed in order to avoid blowing out the flame; the fan is controlled to operate at the third speed in order to discharge the exhaust gas after combustion in the gas water heater.

[0087] In addition, the third preset time is greater than the first preset time and is less than the second preset time; the shutdown water flow rate L2 of the gas water heater is less than the startup water flow rate L1 of the gas water heater.

[0088] In an optional embodiment, the control method further includes:

[0089] If it is determined that the water flow rate is greater than or equal to the shutdown water flow rate of the gas water heater, and the gas water heater does not sense the flame, the proportional valve is controlled to close, the gas water heater is controlled to output a flameout fault prompt message, and the fan is controlled to run at a third speed for a third preset time and then shut down the fan.

[0090] In an optional embodiment, the control method further includes:

[0091] If it is determined that the number of ignitions is greater than the preset number of ignitions, the proportional valve is controlled to close, the gas water heater is controlled to output a fault prompt message of ignition failure, the fan is controlled to run at a third speed for a third preset time and then turn off the fan, and the gas water heater is controlled to cut off power or shut down. After the fault code is canceled, the gas water heater is controlled to power on and start up to restore the gas water heater to standby mode.

[0092] In an optional embodiment, the control method further includes:

[0093] In response to the water flow of the gas water heater being greater than or equal to the startup water flow of the gas water heater, and detecting that the gas water heater has a fault, controlling the gas water heater to output corresponding fault prompt information, and controlling the gas water heater to power off or shut down, and after canceling the fault code, controlling the gas water heater to power on and start up, so that the gas water heater returns to a standby state;

[0094] In an optional embodiment, the control method further includes:

[0095] In response to the water flow of the gas water heater being less than the startup water flow of the gas water heater, the gas water heater is controlled to be in a standby state.

[0096] In the specific implementation process, Figure 2As shown, first, the gas water heater is in the power-on state, and the power button is turned on, S21, the gas water heater is in the standby state, at this time, the gas water heater keeps detecting ①, that is, S22, judging whether the water flow rate is ≥ the start-up water flow rate L1 of the gas water heater, if ① is satisfied, then enter ②, that is, S23, detect whether the gas water heater has a fault; if ① is not satisfied, the gas water heater will not have any response and will be in the standby state; if ② is satisfied, then execute step S24, the gas water heater reports a corresponding fault; if ② is not satisfied, then execute step S25, control the fan to rotate at the first speed N1 for the first preset time T1 time (it should be noted that controlling the fan to rotate at the first speed N1 is to clean up the exhaust gas or debris from the last combustion ), judge ③, i.e. S26, judge whether the water flow rate is ≥ the startup water flow rate L1 of the gas water heater; if ③ is satisfied, execute step S27, control the fan to rotate at the second ignition speed N2, and execute step S28, control the proportional valve to open the valve body with the ignition current I, pass the gas, and ignite the gas water heater at the same time. After ignition, enter ④, i.e. S29, judge whether the water flow rate is ≥ the startup water flow rate L1 of the gas water heater; if ③ is not satisfied, execute step S30, control the fan to rotate at the third speed N3 for the third preset time T3 and then turn it off; if ④ is satisfied, judge ⑤, i.e. S31, judge whether the gas water heater senses the flame; if ④ is not satisfied, execute step S30, control the fan to rotate at the third speed N3 for the third preset time T3 and then turn it off; If ⑤ is satisfied, then step S32 is executed to determine whether the gas water heater is burning stably at the corresponding load, and enter ⑥, namely S33, to determine whether the water flow rate is ≥ the shutdown water flow rate L2 of the gas water heater; if ⑤ is not satisfied, then enter ⑦, namely S49, to determine whether the number of ignitions is ≤ the preset number of ignitions (for example, the preset number of ignitions can be set to 3, or it can be set to other values); if ⑦ is satisfied, then step S34 is executed to control the proportional valve to close, S50, after waiting for the first preset time T1, return to step S25; if ⑥ is satisfied, then judge ⑧, namely S35, to determine whether the gas water heater senses a flame; if ⑥ is not satisfied, then step S36 is executed to control the proportional valve to close, and S51, the fan is turned on with The third speed N3 rotates for the third preset time T3 and then turns off; if ⑧ is satisfied, then judge ⑨, that is, S37, judge whether the combustion of the gas water heater is ≤ the second preset time T2; if ⑧ is not satisfied, then execute step S38, control the proportional valve to close, and execute step S39, the gas water heater reports a flameout fault, and execute step S40, control the fan to rotate at the third speed N3 for the third preset time T3 and then turn off; if ⑨ is satisfied, return to step S32, determine that the gas water heater is stably burning at the corresponding load; if ⑨ is not satisfied, then execute step S41, control the proportional valve to close, and execute step S42, the gas water heater reports a timeout fault, and execute step S43, control the fan to rotate at the third speed N3 for the third preset time T3 and then turn off;If ⑦ is not satisfied, then execute step S44, control the proportional valve to close, and execute step S45, the gas water heater reports a failure to ignite; after reporting various faults, the gas water heater can be powered off or shut down through S46, S47, cancel the fault code, S48, power on again, and then return to step S21 (i.e. the gas water heater returns to the standby state). ;

[0097] This embodiment monitors the water flow rate of the gas water heater in real time and determines the next operation according to the water flow rate, thereby preventing the gas water heater from continuing to burn when the water flow is excessive. This enables the gas water heater to maintain stable combustion and meet the normal performance requirements of the gas water heater.

[0098] Example 2

[0099] Corresponding to the aforementioned embodiment of a control method for a gas water heater, the present disclosure also provides an embodiment of a control system for a gas water heater.

[0100] Figure 3 A module diagram of a control system of a gas water heater provided in Embodiment 2 of the present disclosure, such as Figure 3 As shown, the control system includes: a first control module 21, a second control module 22, a first judgment module 23, and a determination module 24;

[0101] The first control module 21 is used for controlling the fan of the gas water heater to run at a first speed for a first preset time in response to the water flow of the gas water heater being greater than or equal to the startup water flow of the gas water heater and detecting that the gas water heater has no faults, and then controlling the fan to run at a second speed;

[0102] The second control module 22 is used to control the proportional valve of the gas water heater to open and ignite the gas water heater;

[0103] In this embodiment, the proportional valve is controlled to open according to a preset current, and the gas water heater is ignited at the same time.

[0104] The first judging module 23 is used to judge whether the gas water heater senses flame, and if so, call the determining module 24;

[0105] The determination module 24 is used to determine whether the gas water heater is in a stable combustion state under the corresponding load.

[0106] In this embodiment, the gas water heater is in a powered-on state. By turning on the power button, the gas water heater is in a standby state. At this time, the gas water heater keeps detecting whether the water flow is greater than or equal to the startup water flow L1 of the gas water heater.

[0107] In this embodiment, the startup water flow rate L1 of the gas water heater is set according to actual conditions and is not specifically limited here.

[0108] This embodiment ensures that the gas water heater is in a stable combustion state under the corresponding load by detecting the water flow of the gas water heater and combining the control of the fan speed and the proportional valve, thereby improving the combustion stability of the gas water heater.

[0109] In an optional embodiment, the control system further includes:

[0110] The second judgment module is used to judge whether the number of ignitions is less than or equal to the preset number of ignitions if it is judged that the gas water heater does not sense the flame, and if so, call the third control module;

[0111] In this embodiment, the flame is sensed by the sensing needle in the gas water heater. Specifically, when the sensing needle senses being burned by the flame, there is current in the sensing needle. At this time, it is determined that the gas water heater senses the flame. When the sensing needle does not generate current, it is determined that the gas water heater does not sense the flame.

[0112] The third control module is used to control the proportional valve to close, and after waiting for a first preset time, returns to the step of controlling the fan of the gas water heater to run at a first speed for a first preset time.

[0113] In an optional embodiment, the control system further includes:

[0114] The third judgment module is used to judge whether the water flow rate is greater than or equal to the shutdown water flow rate of the gas water heater, and if so, the fourth judgment module is called;

[0115] The fourth judgment module is used to judge whether the gas water heater senses flame, and if so, the fifth judgment module is called;

[0116] A fifth judging module, used for judging whether the combustion time of the gas water heater is less than or equal to the second preset time, and if so, calling the determining module;

[0117] A determination module, used to determine that the gas water heater is in a stable combustion state under the corresponding load;

[0118] The fourth control module is used to control the proportional valve to close if it is determined that the combustion time of the gas water heater is greater than the second preset time, and the gas water heater outputs a timeout fault prompt message, and controls the fan to run at a third speed for a third preset time and then turn off the fan.

[0119] In an optional embodiment, the control system further includes:

[0120] A fifth control module, for controlling the proportional valve to close if the water flow rate is less than the shutdown water flow rate of the gas water heater, and controlling the fan to run at a third speed for a third preset time and then shut down the fan;

[0121] In this embodiment, the preset ignition times, the first preset time, the shutdown water flow L2 of the gas water heater, the second preset time, the third preset time, the first speed, the second speed, and the third speed are all set according to actual conditions and are not specifically limited here.

[0122] It should be noted that the first speed is greater than the second speed. The fan is controlled to operate at the first speed in order to discharge foreign matter in the gas water heater or exhaust gas from the previous combustion; the fan is controlled to operate at the second speed in order to avoid blowing out the flame; the fan is controlled to operate at the third speed in order to discharge the exhaust gas after combustion in the gas water heater.

[0123] In addition, the third preset time is greater than the first preset time and is less than the second preset time; the shutdown water flow rate L2 of the gas water heater is less than the startup water flow rate L1 of the gas water heater.

[0124] In an optional embodiment, the control system further includes:

[0125] The sixth control module is used to control the proportional valve to close, control the gas water heater to output a flameout fault prompt message, and control the fan to run at a third speed for a third preset time before turning off the fan if it is determined that the water flow rate is greater than or equal to the shutdown water flow rate of the gas water heater and the gas water heater does not sense a flame.

[0126] In an optional embodiment, the control system further includes:

[0127] The seventh control module is used to control the proportional valve to close if it is determined that the number of ignitions is greater than the preset number of ignitions, control the gas water heater to output a fault prompt message of ignition failure, control the fan to run at a third speed for a third preset time and then turn off the fan, and control the gas water heater to power off or shut down. After canceling the fault code, control the gas water heater to power on and start up, so that the gas water heater returns to standby mode.

[0128] In an optional embodiment, the control system further includes:

[0129] an eighth control module, for controlling the gas water heater to output corresponding fault prompt information in response to the water flow rate of the gas water heater being greater than or equal to the startup water flow rate of the gas water heater and detecting that the gas water heater has a fault, and controlling the gas water heater to power off or shut down, and after canceling the fault code, controlling the gas water heater to power on and start up, so that the gas water heater returns to a standby state;

[0130] In an optional embodiment, the control system further includes:

[0131] The ninth control module is used to control the gas water heater to be in a standby state in response to the water flow of the gas water heater being less than the startup water flow of the gas water heater.

[0132] In the specific implementation process, the gas water heater is firstly in the power-on state, and the gas water heater is in the standby state by turning on the power button. At this time, the gas water heater keeps detecting ① to determine whether the water flow rate is ≥ the start-up water flow rate L1 of the gas water heater. If ① is satisfied, it enters ② to detect whether the gas water heater has a fault; if ① is not satisfied, the gas water heater will not have any response and will remain in the standby state; if ② is satisfied, the gas water heater will report a corresponding fault; if ② is not satisfied, the fan is controlled to rotate at the first speed N1 for the first preset time T1 (it should be noted that the fan is controlled to rotate at the first speed N1 to clean up the exhaust gas or debris from the last combustion ), judge whether ③ water flow ≥ gas water heater startup water flow L1; if ③ is satisfied, control the fan to rotate at the second ignition speed N2, and control the proportional valve to open the valve body with the ignition current I, pass the gas, and ignite the gas water heater at the same time. After ignition, enter ④ water cut-off flow ≥ gas water heater startup water flow L1; if ③ is not satisfied, control the fan to rotate at the third speed N3 for the third preset time T3 and then turn off; if ④ is satisfied, judge whether ⑤ the gas water heater senses the flame; if ④ is not satisfied, control the fan to rotate at the third speed N3 for the third preset time T3 and then turn off; if ⑤ is satisfied, determine that the gas water heater is at the corresponding load. Stable combustion, and enter ⑥ to determine whether the water flow rate is ≥ the shutdown water flow rate L2 of the gas water heater; if ⑤ is not satisfied, enter ⑦ to determine whether the ignition number is ≤ the preset ignition number (for example, the preset ignition number can be set to 3, or it can be set to other values); if ⑦ is satisfied, the proportional valve is controlled to be closed, and after waiting for the first preset time T1, it returns to controlling the fan to rotate at the first speed N1 for the first preset time T1; if ⑥ is satisfied, determine ⑧ whether the gas water heater senses the flame; if ⑥ is not satisfied, the proportional valve is controlled to be closed, and the fan rotates at the third speed N3 for the third preset time T3 and then turns off; if ⑧ is satisfied, determine ⑨ whether the combustion of the gas water heater is ≤ the first Second preset time T2; if ⑧ is not satisfied, the proportional valve is controlled to be closed, and the gas water heater reports a flameout fault, and the fan is controlled to rotate at the third speed N3 for the third preset time T3 and then turn off; if ⑨ is satisfied, it is determined that the gas water heater is burning stably at the corresponding load; if ⑨ is not satisfied, the proportional valve is controlled to be closed, and the gas water heater reports a timeout fault, and the fan is controlled to rotate at the third speed N3 for the third preset time T3 and then turn off; if ⑦ is not satisfied, the proportional valve is controlled to be closed, and the gas water heater reports a non-ignition fault; after reporting various faults, the gas water heater can be powered off or shut down to cancel the fault code, and the gas water heater will return to standby mode after powering on again.

[0133] This embodiment monitors the water flow rate of the gas water heater in real time and determines the next operation according to the water flow rate, thereby preventing the gas water heater from continuing to burn when the water flow is excessive. This enables the gas water heater to maintain stable combustion and meet the normal performance requirements of the gas water heater.

[0134] As for the system embodiment, since it basically corresponds to the method embodiment, the relevant parts can refer to the partial description of the method embodiment. The system embodiment described above is only illustrative, wherein the units described as separate components may or may not be physically separated, and the components as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the disclosed solution.

[0135] Example 3

[0136] Figure 4 This is a structural schematic diagram of an electronic device shown in Embodiment 3 of the present disclosure, wherein the electronic device includes a memory, a processor, and a computer program stored in the memory and used to run on the processor, and when the processor executes the computer program, the control method of the gas water heater described in any of the above embodiments is implemented. Figure 4 The electronic device 90 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0137] like Figure 4 As shown, the electronic device 90 may be in the form of a general-purpose computing device, for example, it may be a server device. The components of the electronic device 90 may include, but are not limited to: at least one processor 91, at least one memory 92, and a bus 93 connecting different system components (including the memory 92 and the processor 91).

[0138] The bus 93 includes a data bus, an address bus, and a control bus.

[0139] The memory 92 may include a volatile memory, such as a random access memory (RAM) 921 and / or a cache memory 922 , and may further include a read-only memory (ROM) 923 .

[0140] The memory 92 may also include a program tool 925 (or utility) having a set (at least one) of program modules 924, such program modules 924 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.

[0141] The processor 91 executes various functional applications and data processing by running the computer program stored in the memory 92, such as the control method of the gas water heater provided in any of the above embodiments.

[0142] The electronic device 90 may also communicate with one or more external devices 94 (e.g., keyboards, pointing devices, etc.). Such communication may be performed via an input / output (I / O) interface 95. Furthermore, the electronic device 90 may 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 96. Figure 4 As shown, the network adapter 96 communicates with other modules of the electronic device 90 via the bus 93. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the electronic device 90, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems, etc.

[0143] It should be noted that although several units / modules or sub-units / modules of the electronic device are mentioned in the above detailed description, 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 into multiple units / modules to be embodied.

[0144] Example 4

[0145] Embodiment 4 of the present disclosure further provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the control method of the gas water heater provided in any of the above embodiments is implemented.

[0146] 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 of the above.

[0147] Example 5

[0148] Embodiment 5 of the present disclosure further provides a computer program product, including a computer program, which, when executed by a processor, implements any of the above-mentioned methods for controlling a gas water heater.

[0149] Among them, the program code for executing the computer program product of the present disclosure can be written in any combination of one or more programming languages, and the program code can be executed completely on the user device, partially on the user device, as an independent software package, partially on the user device and partially on a remote device, or completely on the remote device.

[0150] Among them, the program code for executing the computer program product of the present disclosure can be written in any combination of one or more programming languages, and the program code can be executed completely on the user device, partially on the user device, as an independent software package, partially on the user device and partially on a remote device, or completely on the remote device.

[0151] Although the specific embodiments of the present disclosure are described above, those skilled in the art should understand that this is only an example, and the protection scope 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, but these changes and modifications all fall within the protection scope of the present disclosure.

Claims

1. A control method for a gas water heater, characterized in that: The control method comprises: In response to the water flow of the gas water heater being greater than or equal to the startup water flow of the gas water heater and detecting that the gas water heater has no fault, controlling the fan of the gas water heater to operate at a first speed for a first preset time, and then controlling the fan to operate at a second speed; Controlling the proportional valve of the gas water heater to open and igniting the gas water heater; It is determined whether the gas water heater senses a flame, and if so, it is determined that the gas water heater is in a stable combustion state under the corresponding load.

2. The control method of the gas water heater according to claim 1, characterized in that: The control method further comprises: If it is determined that the gas water heater does not sense flame, it is determined whether the number of ignitions is less than or equal to the preset number of ignitions. If so, the proportional valve is controlled to close, and after waiting for the first preset time, the step of controlling the fan of the gas water heater to run at the first speed for the first preset time is returned.

3. The control method of the gas water heater according to claim 1, characterized in that: After the step of determining that the gas water heater is in a stable combustion state corresponding to the load, the control method further includes: Determine whether the water flow is greater than or equal to the shutdown water flow of the gas water heater. If so, determine whether the gas water heater senses a flame. If so, determine whether the combustion time of the gas water heater is less than or equal to a second preset time. If so, determine that the gas water heater is in a stable combustion state under the corresponding load; if it is determined that the combustion time of the gas water heater is greater than the second preset time, control the proportional valve to close, the gas water heater outputs a timeout fault prompt message, and controls the fan to run at a third speed for a third preset time and then shuts down the fan.

4. The control method of the gas water heater according to claim 3, characterized in that: The control method further comprises: If the water flow rate is less than the shutdown water flow rate of the gas water heater, the proportional valve is controlled to close, and the fan is controlled to run at a third speed for a third preset time and then the fan is turned off; and / or, The control method further comprises: If it is determined that the water flow rate is greater than or equal to the shutdown water flow rate of the gas water heater and the gas water heater does not sense a flame, the proportional valve is controlled to close, the gas water heater is controlled to output a flameout fault prompt message, and the fan is controlled to run at a third speed for a third preset time and then shut down.

5. The control method of the gas water heater according to claim 2, characterized in that: The control method further comprises: If it is determined that the number of ignitions is greater than the preset number of ignitions, the proportional valve is controlled to be closed, the gas water heater is controlled to output a fault prompt message of ignition failure, the fan is controlled to run at a third speed for a third preset time and then be turned off, and the gas water heater is controlled to be powered off or shut down. After the fault code is canceled, the gas water heater is controlled to be powered on and turned on to restore the gas water heater to a standby state.

6. The control method of the gas water heater according to claim 1, characterized in that: The control method further comprises: In response to the water flow of the gas water heater being greater than or equal to the startup water flow of the gas water heater, and detecting that the gas water heater has a fault, controlling the gas water heater to output corresponding fault prompt information, and controlling the gas water heater to be powered off or shut down, and after canceling the fault code, controlling the gas water heater to be powered on and turned on, so that the gas water heater is restored to a standby state; and / or, The control method further comprises: In response to the water flow of the gas water heater being less than the startup water flow of the gas water heater, the gas water heater is controlled to be in a standby state.

7. A control system for a gas water heater, characterized in that: The control system comprises: a first control module, for controlling a fan of the gas water heater to operate at a first speed for a first preset time in response to a water flow rate of the gas water heater being greater than or equal to a startup water flow rate of the gas water heater and detecting that the gas water heater has no faults, and then controlling the fan to operate at a second speed; A second control module, used to control the proportional valve of the gas water heater to open and ignite the gas water heater; A first judging module is used to judge whether the gas water heater senses flame, and if so, call a determining module; The determination module is used to determine whether the gas water heater is in a stable combustion state under the corresponding load.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and used to run on the processor, characterized in that: When the processor executes the computer program, the control method of the gas water heater according to any one of claims 1 to 6 is implemented.

9. 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 gas water heater according to any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the control method of the gas water heater according to any one of claims 1 to 6 is implemented.

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