Control method and device of gas water heater, gas water heater and storage medium

Abstract

The invention relates to the technical field of gas water heating equipment, and discloses a control method and device of a gas water heater, the gas water heater and a storage medium. The method comprises the steps that under the condition that it is detected that a neutralizer of the gas water heater is blocked, the gas water heater is controlled to be shut down, and an electric control switch valve on a smoke exhaust pipe is controlled to be closed; and a fan of the gas water heater is started to apply forward pressure to a condensation drain pipe of the gas water heater. According to the gas water heater, the gas water heater can have a certain capacity of automatically solving the problem of neutralizer blockage, and frequent overhaul caused by neutralizer blockage is avoided; the number of times of door-to-door service of after-sales personnel or self-dredging of the neutralizer by consumers is reduced, the use experience of the consumers is effectively improved, and the burden of after-sales service is also reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of gas water heating equipment, and particularly to a control method and device for a gas water heater, a gas water heater, and a storage medium. Background Art

[0002] With the wide application of gas water heaters, they provide great convenience for users' daily hot water use. Among them, condensing gas water heaters are favored by consumers due to their significant energy-saving effects. However, currently, most condensing gas water heaters on the market are generally equipped with condensate drainage pipelines. Once the condensate drainage pipeline is improperly installed and causes a water blockage in the neutralizer, the condensing gas water heater will report a water blockage fault and stop working. In this case, after-sales personnel need to visit the site or consumers need to unclog the neutralizer themselves, which not only affects the user experience of consumers but also increases the burden of after-sales service. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a control method for a gas water heater, which effectively solves the technical problem of frequent maintenance due to the water blockage fault of the neutralizer.

[0004] The above technical problem is solved by the following technical solutions:

[0005] A control method for a gas water heater, which is applied to a gas water heater. The gas water heater includes a burner, a first heat exchange device, a blower, and a second heat exchange device connected in sequence; a smoke exhaust chamber is provided in the second heat exchange device, and a smoke exhaust pipe and a condensate drain pipe communicating with the smoke exhaust chamber are connected to the outside of the second heat exchange device; an electric control switch valve is provided on the smoke exhaust pipe for controlling the opening and closing of the smoke exhaust pipe; a neutralizer is provided on the condensate drain pipe; both the neutralizer and the electric control switch valve are electrically connected to the main controller of the gas water heater;

[0006] The method includes:

[0007] When it is detected that the neutralizer of the gas water heater is blocked, control the gas water heater to extinguish the fire, and control the electric control switch valve on the smoke exhaust pipe to close;

[0008] Start the blower of the gas water heater to apply a positive pressure to the condensate drain pipe of the gas water heater.

[0009] Compared with the background art, the control method of the gas water heater described in the present invention has the following beneficial effects: During the operation of the gas water heater, if it is detected that the neutralizer of the gas water heater is blocked, the main controller is used to control the gas water heater to shut down, preventing the blockage from further deteriorating and causing more serious consequences, and ensuring the personal safety of users and the safety of the home environment. Then, the main controller is used to control the electric control switch valve to close, so as to close the smoke exhaust pipe communicating with the smoke exhaust chamber, and further start the fan, so that the fan works at the maximum output power to apply a positive pressure to the condensate drain pipe, thereby attempting to dredge the blocked neutralizer. The embodiment of the present invention can enable the gas water heater to have a certain ability to solve the blockage of the neutralizer by itself, avoid frequent maintenance due to the blockage of the neutralizer; reduce the number of after-sales personnel's on-site services or the number of times consumers dredge the neutralizer by themselves, effectively improve the user experience of consumers, and also reduce the burden of after-sales service.

[0010] In one embodiment, the method further includes:

[0011] Detect the current resistance value between the liquid level sensors corresponding to the neutralizer;

[0012] If the current resistance value is less than or equal to the target resistance value, it is determined that the neutralizer is blocked.

[0013] Beneficial effect: When the gas water heater is working normally, the main controller will detect the resistance value between the liquid level sensors corresponding to the neutralizer in real time. Since the liquid level sensors are in an open circuit state, the resistance value between the two sensors is infinite; when the water level in the condensate drain pipe rises, the two liquid level sensors will be conducted, so that the current resistance value between the liquid level sensors can be detected. When the detected current resistance value is less than or equal to the preset target resistance value, the water level in the condensate drain pipe reaches an abnormal state, so it can be determined that due to the blockage of the neutralizer, the water flow is not smooth, which in turn causes the change of the resistance value between the liquid level sensors.

[0014] In one embodiment, the target resistance value is less than or equal to 300 KΩ.

[0015] Beneficial effects: By setting an appropriate target resistance value, it is determined whether the neutralizer is in a normal state. When the neutralizer becomes blocked due to various reasons, it will cause situations such as the liquid level rising and the water flow state changing, which in turn changes the electrical conductivity between the liquid level sensors. This is manifested as a decrease in resistance value. When the resistance value decreases to less than or equal to 300 KΩ, it can more accurately reflect the fault state of the blocked neutralizer. By strictly monitoring and judging the target resistance value, it helps to ensure that the condensate drainage pipeline of the gas water heater always maintains a normal drainage function, avoiding a series of problems caused by the accumulation of condensate water, such as corrosion and leakage, thereby ensuring the safe and stable operation of the entire gas water heater system, extending the service life of the gas water heater, and improving the reliability and safety of user use.

[0016] In one embodiment, the method further includes:

[0017] During the operation of the blower, detect the change in the current resistance value between the liquid level sensors;

[0018] If the current resistance value is greater than the target resistance value within a preset time period, it is determined that the neutralizer is unblocked, and the blower is turned off.

[0019] Beneficial effects: After the blower starts to operate, the main controller continuously detects the change in the current resistance value between the liquid level sensors. The purpose of the blower operation is to unblock the neutralizer, and the change in the resistance value between the liquid level sensors can reflect the state change of the neutralizer. By detecting the change in the current resistance value in real time, the effect of the neutralizer unblocking work can be understood in a timely manner. If it is detected that the current resistance value between the liquid level sensors is greater than the target resistance value within a preset time period, it indicates that the water level or water flow state in the condensate drain pipe has returned to a level close to the normal working state, so it can be determined that the neutralizer has been unblocked. At the same time, the blower is controlled to turn off to save energy and avoid unnecessary equipment operation. By detecting the change in the current resistance value of the liquid level sensor during the operation of the blower and judging whether the neutralizer is unblocked according to different resistance values, the effect of the unblocking measure can be accurately evaluated, providing a basis for further fault handling, and ensuring that the neutralizer of the gas water heater can work normally.

[0020] In one embodiment, the method further includes:

[0021] If the operation of the blower meets the preset time period and the current resistance value is less than or equal to the target resistance value, it is determined that the neutralizer is not unblocked, and a fault prompt message is sent.

[0022] Beneficial effects: When the fan has run for a preset duration, if the current resistance value between the liquid level sensors is still less than or equal to the target resistance value, although the fan has run for a long enough time to attempt to unclog the neutralizer, the water level or water flow state in the condensate drain pipe has not been effectively improved and remains in an abnormal state. Thus, it can be determined that the neutralizer has not been unclogged. At the same time, a fault prompt message for the gas water heater is sent to enable the user to be aware of the water blockage fault in the gas water heater, ensuring the safety and convenience during the use of the gas water heater.

[0023] In one embodiment, the method further includes:

[0024] When it is detected that the neutralizer of the gas water heater is blocked, display a fault prompt message on the display interface of the gas water heater;

[0025] If it is determined that the neutralizer has been unclogged, clear the fault prompt message on the display interface.

[0026] Beneficial effects: By providing a display device on the gas water heater, when the gas water heater detects a blockage in the neutralizer, the corresponding fault prompt message will be displayed in a specific form on the display interface of the display device. Thus, the detected blockage situation inside the gas water heater can be accurately conveyed to the user. By viewing the fault prompt message displayed on the display interface, the user can immediately understand that there is a problem with the gas water heater and then decide on the next action according to the specific situation of the blockage. If it is determined that the neutralizer has been unclogged, the water level or water flow condition in the condensate drain pipe no longer conforms to the characteristics during blockage, and then the fault prompt message on the display interface is cleared, indicating that the fault of the neutralizer blockage has been eliminated. By displaying the fault prompt message on the display interface of the gas water heater, the state of the gas water heater can be precisely monitored and effectively managed, ensuring the stable operation of the gas water heater.

[0027] In one embodiment, the fault prompt message is displayed in the form of a fault code.

[0028] Beneficial effects: By displaying the fault prompt message in the form of a fault code, the fault state of the gas water heater can be more intuitively shown, facilitating corresponding processing and prompting for different faults, thereby ensuring the normal operation and use safety of the gas water heater.

[0029] A control device for a gas water heater, comprising:

[0030] A first control module, configured to control the gas water heater to shut off the flame and control the electric control switch valve of the exhaust pipe to close when it is detected that the neutralizer of the gas water heater is blocked;

[0031] The second control module is used to start the blower of the gas water heater to apply a positive pressure to the condensate drain pipe of the gas water heater.

[0032] On the other hand, the present invention also provides a gas water heater, including: a memory, a processor, a communication interface, and a communication bus. The processor, the memory, and the communication interface complete communication with each other through the communication bus;

[0033] The memory is used to store at least one executable instruction, and the executable instruction causes the processor to execute the control method of the gas water heater as described above.

[0034] On the other hand, the present invention also provides a computer-readable storage medium. The computer-readable storage medium stores computer instructions, and the computer instructions are used to cause the processor to implement the control method of the gas water heater as described above when executed. Description of the Drawings

[0035] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0036] Figure 1 It is a schematic flow chart of a control method of a gas water heater according to an embodiment of the present invention;

[0037] Figure 2 It is a schematic structural diagram of a gas water heater according to an embodiment of the present invention;

[0038] Figure 3 It is a schematic flow chart of a control method of a gas water heater according to another embodiment of the present invention;

[0039] Figure 4 It is a schematic flow chart of a control method of a gas water heater according to another embodiment of the present invention;

[0040] Figure 5 It is a schematic flow chart of a control method of a gas water heater according to another embodiment of the present invention;

[0041] Figure 6 It is a schematic structural diagram of a control device of a gas water heater according to an embodiment of the present invention;

[0042] Figure 7 It is a schematic structural diagram of a gas water heater according to another embodiment of the present invention.

[0043] Description of the Reference Numerals:

[0044] 10. Gas water heater; 110. Burner; 111. Air inlet; 120. First heat exchange device; 130. Fan; 140. Second heat exchange device; 141. Smoke exhaust chamber; 142. Smoke exhaust pipe; 143. Electric control switch valve; 144. Condensate drain pipe; 1441. Condensate drain outlet; 145. Neutralizer; 1451. Liquid level sensor; 150. Water inlet pipe; 151. Water inlet; 152. First temperature sensor; 153. Water flow sensor; 160. Water outlet pipe; 161. Water outlet; 162. Second temperature sensor. Specific embodiments

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0047] The present invention provides a control method, device, gas water heater and storage medium for a gas water heater, which can enable the gas water heater 10 to have a certain ability to solve the blockage of the neutralizer 145 by itself, avoid frequent maintenance due to the blockage of the neutralizer 145; reduce the number of times of after-sales personnel's on-site service or consumers' self-unclogging of the neutralizer 145, effectively improve the consumer's use experience, and also reduce the burden of after-sales service.

[0048] As Figure 2As shown in the figure, an embodiment of the present invention provides a gas water heater 10, including: a burner 110, a first heat exchange device 120, a second heat exchange device 140, a blower 130 and a main controller; the burner 110, the first heat exchange device 120 and the blower 130 are connected in sequence; the burner 110 is communicated with a gas pipeline, and gas can enter the gas pipeline through an air inlet 111 and flow into the burner 110. A smoke exhaust chamber 141 is provided in the second heat exchange device 140, a smoke exhaust pipe 142 communicated with the smoke exhaust chamber 141 is connected to the outside of the second heat exchange device 140, an electric control switch valve 143 is installed on the smoke exhaust pipe 142, the electric control switch valve 143 is electrically connected to the main controller, and the smoke exhaust pipe 142 can be opened or closed through the electric control switch valve 143; when the gas water heater 10 is working, the smoke exhaust pipe 142 communicated with the smoke exhaust chamber 141 is opened through the electric control switch valve 143, and when the gas water heater 10 stops working, the smoke exhaust pipe 142 is closed through the electric control switch valve 143. A condensate drain pipe 144 communicated with the smoke exhaust chamber 141 is also connected to the outside of the second heat exchange device 140; a condensate water drain port 1441 is provided on the condensate drain pipe 144 for discharging condensate water; a neutralizer 145 is provided on the condensate drain pipe 144, and two liquid level sensors are provided on the neutralizer 145, and the two liquid level sensors are electrically connected to the main controller. The gas water heater 10 further includes a water inlet pipe 150 and a water outlet pipe 160, a first temperature sensor 152 and a water flow sensor 153 are further provided on the water inlet pipe 150, and a second temperature sensor 162 is provided on the water outlet pipe 160. Water flows into the water inlet pipe 150 from a water inlet 151, first flows through the second heat exchange device 140 to perform secondary heat exchange with high-temperature flue gas, then flows through the first heat exchange device 120 to perform sufficient heat exchange, and finally flows out from a water outlet 161 of the water outlet pipe 160.

[0049] The following combines Figures 1 to 7 , to describe the embodiments of the present invention.

[0050] According to the embodiments of the present invention, as Figure 1 shown, on the one hand, a control method for a gas water heater is provided, including the following steps:

[0051] Step S100, when it is detected that the neutralizer 145 of the gas water heater 10 is blocked, control the gas water heater 10 to extinguish the fire, and control the electric control switch valve 143 on the smoke exhaust pipe 142 to close;

[0052] Step S200, start the blower 130 of the gas water heater 10 to apply a positive pressure to the condensate drain pipe 144 of the gas water heater 10.

[0053] In this embodiment, during the operation of the gas water heater 10, if it is detected that the neutralizer 145 of the gas water heater 10 is blocked, the main controller is used to control the gas water heater 10 to shut down, preventing the blockage from further deteriorating and causing more serious consequences, and ensuring the personal safety of users and the safety of the home environment. Then, the main controller is used to control the electric control switch valve 143 to close, so as to close the exhaust pipe 142 communicating with the exhaust chamber 141, and further start the blower 130, so that the blower 130 operates at the maximum output power, applying a positive pressure to the condensate drain pipe 144, thereby attempting to dredge the blocked neutralizer 145. The embodiment of the present invention enables the gas water heater 10 to have a certain ability to solve the blockage of the neutralizer 145 by itself, avoiding frequent maintenance due to the blockage of the neutralizer 145; reducing the number of after-sales personnel's on-site services or consumers' self-dredging of the neutralizer 145, effectively improving the user experience of consumers, and also reducing the burden of after-sales service.

[0054] Among them, the method of detecting the blockage of the neutralizer 145 can be to detect through a liquid level sensor. When the neutralizer 145 is blocked, the condensate water in the condensate drain pipe 144 cannot be discharged normally, and the liquid level gradually rises; when the liquid level reaches the preset height of the liquid level sensor 1451, the liquid level sensor 1451 will feedback a signal to the main controller, thereby determining that there is a blockage in the neutralizer 145; it is also possible to determine whether there is a blockage in the neutralizer 145 by detecting the current resistance value between the liquid level sensors 1451. Of course, it is not limited to the above description, and other methods can also be used, and no limitation is made thereto herein.

[0055] In one embodiment, as Figure 3 shown, the method further includes the following steps:

[0056] Step S110: Detect the current resistance value between the liquid level sensors 1451 corresponding to the neutralizer 145;

[0057] Step S120: If the current resistance value is less than or equal to the target resistance value, it is determined that the neutralizer 145 is blocked.

[0058] In this embodiment, when the gas water heater 10 is working normally, the main controller will detect the resistance value between the liquid level sensors 1451 corresponding to the neutralizer 145 in real time. Since the liquid level sensors 1451 are in an open circuit state, the resistance value between the two sensors is infinite; when the water level in the condensate drain pipe 144 rises, the two liquid level sensors 1451 will be conducted, so that the current resistance value between the liquid level sensors 1451 can be detected. When the detected current resistance value is less than or equal to the preset target resistance value, the water level in the condensate drain pipe 144 reaches an abnormal state, so it can be determined that due to the blockage of the neutralizer 145, the water flow is blocked, which in turn causes a change in the resistance value between the liquid level sensors 1451.

[0059] Regarding the measurement method of the current resistance value between the liquid level sensors 1451 corresponding to the neutralizer 145, it can be by connecting the control circuit of the gas water heater 10 to the liquid level sensors 1451 and setting corresponding detection programs in the control circuit to measure the resistance between the two liquid level sensors 1451; it can also be by directly detecting the current resistance between the liquid level sensors 1451 by the main controller, etc. Among them, the resistance detection method between the liquid level sensors 1451 can also adopt other methods, and no limitation is made here.

[0060] Furthermore, the target resistance value is less than or equal to 300 KΩ.

[0061] Specifically, the target resistance value can be set to 100 KΩ, 150 KΩ, 200 KΩ, 250 KΩ, 300 KΩ, etc.; the specific target resistance value can be set according to actual usage requirements. By setting a suitable target resistance value, it is determined whether the neutralizer 145 is in a normal state. When the neutralizer 145 is blocked due to various reasons, it will cause the liquid level to rise, the water flow state to change, etc., and then change the conductivity between the liquid level sensors 1451, which is manifested as a decrease in the resistance value. When it decreases to less than or equal to 300 KΩ, it can more accurately reflect the blocked fault state of the neutralizer 145. By strictly monitoring and judging the target resistance value, it helps to ensure that the condensate drain pipe 144 of the gas water heater 10 always maintains a normal drainage function, avoiding a series of problems caused by the accumulation of condensate water, such as corrosion, leakage, etc., thereby ensuring the safe and stable operation of the entire gas water heater 10 system, extending the service life of the gas water heater 10, and improving the reliability and safety of user use.

[0062] In one embodiment, as Figure 4 shown, the method further includes the following steps:

[0063] Step S210, during the operation of the blower 130, detect the change in the current resistance value between the liquid level sensors 1451;

[0064] Step S220, if the current resistance value is greater than the target resistance value within the preset duration, determine that the neutralizer 145 is unblocked and turn off the blower 130.

[0065] In this embodiment, after the blower 130 starts running, the main controller continuously detects the change in the current resistance value between the liquid level sensors 1451. The purpose of the blower 130 running is to dredge the neutralizer 145, and the change in the resistance value between the liquid level sensors 1451 can reflect the state change of the neutralizer 145. By detecting the change in the current resistance value in real time, the effect of the dredging work of the neutralizer 145 can be understood in a timely manner. If it is detected that the current resistance value between the liquid level sensors 1451 is greater than the target resistance value within the preset duration, it indicates that the water level or water flow state in the condensate drain pipe 144 has returned to a level close to the normal working state, so it can be determined that the neutralizer 145 has been dredged. At the same time, the blower 130 is controlled to turn off to save energy and avoid unnecessary equipment operation. By detecting the change in the current resistance value of the liquid level sensor 1451 during the operation of the blower 130 and judging whether the neutralizer 145 is dredged according to different resistance values, the effect of the dredging measure can be accurately evaluated, providing a basis for further fault handling, and ensuring that the neutralizer 145 of the gas water heater 10 can work properly.

[0066] In one embodiment, the method further includes:

[0067] If the blower 130 runs for a preset duration and the current resistance value is less than or equal to the target resistance value, it is determined that the neutralizer 145 is not dredged, and a fault prompt message is sent.

[0068] In this embodiment, when the blower 130 has run for the preset duration, if the current resistance value between the liquid level sensors 1451 is still less than or equal to the target resistance value, it indicates that although the blower 130 has run for a long enough time to try to dredge the neutralizer 145, the water level or water flow state in the condensate drain pipe 144 has not been effectively improved and is still in an abnormal state. Therefore, it can be determined that the neutralizer 145 is not dredged. At this time, a fault prompt message for the gas water heater 10 is generated and sent, so that the user can know that the gas water heater 10 has a water blockage fault for subsequent processing, ensuring the safety and convenience during the use of the gas water heater 10.

[0069] Further, the preset duration is 30s - 60s. Specifically, the preset duration for the blower 130 to run can be 30s, 40s, 50s, 60s, etc.; specifically, the preset duration for the blower 130 to run can be set according to actual usage requirements.

[0070] In one embodiment, as Figure 5 shown, the method further includes the following steps:

[0071] Step S300, when it is detected that the neutralizer 145 of the gas water heater 10 is blocked, display a fault prompt message on the display interface of the gas water heater 10;

[0072] Step S400: If it is determined that the neutralizer 145 is unclogged, clear the fault prompt information on the display interface.

[0073] In this embodiment, a display device is further provided on the gas water heater 10, such as a liquid crystal display screen or a light-emitting diode display screen located on the front of the housing of the gas water heater 10. A display interface is formed on the display device. When the gas water heater 10 detects that the neutralizer 145 is blocked, the corresponding fault prompt information will be displayed on the display interface in a specific form; thus, accurately conveying the detected blockage situation inside the gas water heater 10 to the user. By viewing the fault prompt information displayed on the display interface, the user can immediately understand that there is a problem with the gas water heater 10, and then can decide on the next action according to the specific situation of the blockage.

[0074] If it is determined that the neutralizer 145 is unclogged, the water level or water flow condition in the condensate drain pipe 144 no longer conforms to the characteristics when it was blocked. Then, clear the fault prompt information on the display interface, indicating that the fault of the neutralizer 145 being blocked has been eliminated, and the gas water heater 10 returns to the normal state. By displaying or clearing the fault prompt information on the display interface of the gas water heater 10, the state of the gas water heater 10 can be accurately monitored and effectively managed, ensuring the stable operation of the gas water heater 10.

[0075] Furthermore, an alarm device is also provided on the gas water heater 10. Among them, the alarm device can be an indicator light or a sound alarm. When it is determined that the neutralizer 145 of the gas water heater 10 is blocked, the user can be further reminded of the fault of the combustion water heater through the indicator light and / or the sound alarm to attract the user's attention.

[0076] In one of the embodiments, the fault prompt information is displayed in the form of a fault code.

[0077] In this embodiment, by displaying the fault prompt information in the form of a fault code, the fault state of the gas water heater 10 can be more intuitively shown, which is convenient for corresponding processing and prompting for different faults, thus ensuring the normal operation and use safety of the gas water heater 10. For example, specific fault codes can be displayed, such as "E1" representing one kind of fault and "E2" representing another kind of fault; by comparing with the product manual, it is convenient for the user to clearly understand the specific problem that has occurred with the gas water heater 10 according to the fault code. Specifically, the fault type can also be clearly written in text form, such as "water blockage fault", "ignition failure fault", etc.

[0078] According to an embodiment of the present invention, as Figure 6 shown, on the other hand, a control device for a gas water heater is also provided, including:

[0079] The first control module 100 is configured to control the gas water heater 10 to extinguish the fire and control the electric control switch valve 143 on the smoke exhaust pipe 142 to close when it is detected that the neutralizer 145 of the gas water heater 10 is blocked.

[0080] The second control module 200 is configured to start the blower 130 of the gas water heater 10 to apply a positive pressure to the condensate drain pipe 144 of the gas water heater 10.

[0081] In one embodiment, the first control module 100 includes:

[0082] The first detection unit is configured to detect the current resistance value between the liquid level sensors 1451 corresponding to the neutralizer 145.

[0083] The first determination unit is configured to determine that the neutralizer 145 is blocked if the current resistance value is less than or equal to the target resistance value; the target resistance value is less than or equal to 300 KΩ.

[0084] In one embodiment, the second control module 200 includes:

[0085] The second detection unit is configured to detect the change in the current resistance value between the liquid level sensors 1451 during the operation of the blower 130.

[0086] The second determination unit is configured to determine that the neutralizer 145 is unblocked and turn off the blower 130 if the current resistance value is greater than the target resistance value within a preset duration.

[0087] In one embodiment, the second control module 200 further includes:

[0088] The sending unit is configured to determine that the neutralizer 145 is not unblocked and send a fault prompt message if the blower 130 operates for a preset duration and the current resistance value is less than or equal to the target resistance value.

[0089] In one embodiment, it further includes:

[0090] The display module is configured to display a fault prompt message on the display interface of the gas water heater 10 when it is detected that the neutralizer 145 of the gas water heater 10 is blocked.

[0091] The clearing module is configured to clear the fault prompt message on the display interface if it is determined that the neutralizer 145 is unblocked; the fault prompt message is displayed in the form of a fault code.

[0092] Figure 7 The structural schematic diagram of the embodiment of the gas water heater 10 provided by the embodiment of the present invention is shown. The specific implementation of the gas water heater 10 is not limited in the specific embodiments of the present invention.

[0093] As shown Figure 7 in the figure, the gas water heater 10 may include: a processor 502, a communications interface 504, a memory 506, and a communication bus 508.

[0094] Among them: the processor 502, the communications interface 504, and the memory 506 communicate with each other through the communication bus 508. The communications interface 504 is used to communicate with network elements of other devices such as clients or other servers. The processor 502 is used to execute the program 510, and specifically can execute the relevant steps in the above-mentioned control method embodiments for the gas water heater 10.

[0095] Specifically, the program 510 may include program code, and the program code includes computer-executable instructions.

[0096] The processor 502 may be a central processing unit CPU, or a specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present invention. One or more processors included in the gas water heater 10 may be of the same type of processor, such as one or more CPUs; or may be of different types of processors, such as one or more CPUs and one or more ASICs.

[0097] The memory 506 is used to store the program 510. The memory 506 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk memory.

[0098] The program 510 can specifically be called by the processor 502 to cause the gas water heater 10 to execute the relevant steps in the above-mentioned control method embodiments for the gas water heater.

[0099] Those of ordinary skill in the art can understand that Figure 7 the structure shown is only schematic and does not limit the structure of the above-mentioned device. For example, the gas water heater 10 may further include more or fewer components than Figure 7 shown in the figure, or have a different configuration from Figure 7 shown in the figure.

[0100] Embodiments of the present invention also provide a computer-readable storage medium. The methods according to the embodiments of the present invention can be implemented in hardware, firmware, or be implemented as computer code that can be recorded on a storage medium, or be implemented as computer code that is originally stored in a remote storage medium or a non-transitory machine-readable storage medium and downloaded through a network and will be stored in a local storage medium, so that the methods described herein can be stored in such software processes 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 memory, a random access memory, a flash memory, a hard disk, or a solid-state drive, etc.; further, the storage medium can also include a combination of the above-mentioned 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, and when the software or computer code is accessed and executed by the computer, the processor, or the hardware, the methods shown in the above embodiments are implemented.

[0101] In the specific content of the above specific embodiments, the technical features can be combined arbitrarily without contradiction. For the sake of brevity of description, not all possible combinations of the above technical features are described. However, as long as these combinations of technical features do not exist in contradiction, they should be considered as the scope recorded in this specification.

[0102] The specific content of the above specific embodiments only expresses several embodiments of the present invention, and its description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A control method for a gas water heater, characterized in that: Applicable to a gas water heater (10), the gas water heater (10) comprising a burner (110), a first heat exchange device (120), a fan (130) and a second heat exchange device (140) connected in sequence; a smoke exhaust chamber (141) is provided in the second heat exchange device (140), and a smoke exhaust pipe (142) and a condensate drain pipe (144) in communication with the smoke exhaust chamber (141) are connected to the outside of the second heat exchange device (140); an electrically controlled switch valve (143) is provided on the smoke exhaust pipe (142) for controlling the opening and closing of the smoke exhaust pipe (142); a neutralizer (145) is provided on the condensate drain pipe (144); the neutralizer (145) and the electrically controlled switch valve (143) are both electrically connected to a main controller of the gas water heater (10); The method comprises: When it is detected that the neutralizer (145) of the gas water heater (10) is blocked, the gas water heater (10) is controlled to be turned off, and the electric control switch valve (143) on the smoke exhaust pipe (142) is controlled to be closed; The fan (130) of the gas water heater (10) is started to apply positive pressure to the condensate drain pipe (144) of the gas water heater (10).

2. The control method of the gas water heater according to claim 1, characterized in that: The method further comprises: Detecting the current resistance value between the liquid level sensors (1451) corresponding to the neutralizer (145); If the current resistance value is less than or equal to the target resistance value, it is determined that the neutralizer (145) is clogged.

3. The control method of the gas water heater according to claim 2, characterized in that: The target resistance is less than or equal to 300KΩ.

4. The control method of the gas water heater according to claim 1, characterized in that: The method further comprises: During the operation of the fan (130), detecting a change in the current resistance between the liquid level sensors (1451); If the current resistance value is greater than the target resistance value within a preset time period, it is determined that the neutralizer (145) is unblocked, and the fan (130) is turned off.

5. The control method of the gas water heater according to claim 4, characterized in that: The method further comprises: If the fan (130) runs for the preset time period and the current resistance value is less than or equal to the target resistance value, it is determined that the neutralizer (145) is not unblocked, and a fault prompt message is issued.

6. The control method of the gas water heater according to claim 1, characterized in that: The method further comprises: When a blockage is detected in the neutralizer (145) of the gas water heater (10), a fault prompt message is displayed on a display interface of the gas water heater (10); If it is determined that the neutralizer (145) is unblocked, the fault prompt information is cleared on the display interface.

7. The control method of the gas water heater according to claim 6, characterized in that: The fault prompt information is displayed in the form of a fault code.

8. A control device for a gas water heater, characterized in that: include: A first control module, for controlling the gas water heater (10) to turn off the flame and controlling the electric control switch valve (143) on the smoke exhaust pipe (142) to close when the neutralizer (145) of the gas water heater (10) is detected to be blocked; The second control module is used to start the fan (130) of the gas water heater (10) to apply positive pressure to the condensation drain pipe (144) of the gas water heater (10).

9. A gas water heater, characterized in that: include: A memory, a processor, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other via the communication bus; The memory is used to store at least one executable instruction, and the executable instruction enables the processor to execute the control method of the gas water heater (10) according to any one of claims 1 to 7.

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

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