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

Abstract

The present invention discloses a control method, device, gas water heater and storage medium for a gas water heater, belonging to the technical field of household appliances. In the present invention, when the blower starts, the actual rotation speed and control parameters of the blower are obtained; the reference set rotation speed corresponding to the control parameters is obtained; the reference set rotation speed is corrected according to a preset correction coefficient to obtain a target set rotation speed; when it is determined that the operating parameters of the gas water heater meet a preset condition based on the actual rotation speed and the target set rotation speed; when the operating parameters of the gas water heater meet the preset condition, the gas valve is opened, and it is judged whether the operating parameters of the gas water heater meet the preset condition based on the actual rotation speed of the blower and the corrected target set rotation speed, and the gas valve is opened after meeting the preset condition to control the operation of the gas water heater, so as to ensure that the water heater has a good combustion condition during the combustion operation process, avoid incomplete combustion and vibration combustion, and improve the practicability and safety of the gas water heater.

Description

Technical Field

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

[0002] At present, the operation of a gas water heater mostly supplies the heat generated by gas combustion required for producing hot water through gas flow control. For a gas water heater with a blower, a corresponding blower speed is configured to provide a corresponding air volume to maintain combustion operation under good conditions.

[0003] However, due to differences in installation environments and states, such as poor ventilation environments, backdraft in the exhaust pipe, and other factors, it is easy to cause problems such as incomplete combustion and vibration combustion. Currently, there is no effective way to solve the above existing problems, which reduces the practicability and safety of the gas water heater.

[0004] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main object of the present invention is to provide a control method and device for a gas water heater, a gas water heater, and a storage medium, aiming to solve the technical problem that the prior art cannot effectively solve the problems of incomplete combustion and vibration combustion in a gas water heater, which reduces the practicability and safety of the gas water heater.

[0006] To achieve the above object, the present invention provides a control method for a gas water heater. The control method for the gas water heater is applied to a gas water heater, and the gas water heater includes a gas valve, a blower, a burner, and a gas pipeline. The gas pipeline is used to supply gas to the burner, the blower is used to supply air to the burner, and the gas valve is arranged on the gas pipeline.

[0007] The control method for the gas water heater includes the following steps:

[0008] When the blower is started, obtain the actual speed and control parameters of the blower;

[0009] Obtain the reference set speed corresponding to the control parameters;

[0010] Modify the reference set speed according to a preset correction coefficient to obtain a target set speed;

[0011] Judge whether the operating parameters of the gas water heater meet preset conditions according to the actual speed and the target set speed; and

[0012] When the operating parameters of the gas water heater meet the preset conditions, open the gas valve.

[0013] Optionally, the target set speed includes a first target set speed and a second target set speed, and the first target set speed is greater than the second target set speed;

[0014] Judging whether the operating parameters of the gas water heater meet the preset conditions according to the actual speed and the target set speed includes:

[0015] When the actual speed is less than or equal to the second target set speed, it is determined that the operating parameters of the gas water heater meet the preset conditions; and

[0016] When the actual speed is greater than the first target set speed, or when the actual speed is greater than the second target set speed and the actual speed is less than or equal to the first target set speed, it is determined that the operating parameters of the gas water heater do not meet the preset conditions.

[0017] Optionally, after judging whether the operating parameters of the gas water heater meet the preset conditions according to the actual speed and the target set speed, it further includes:

[0018] When the actual speed is greater than the first target set speed, close the gas valve and / or give an alarm.

[0019] Optionally, after judging whether the operating parameters of the gas water heater meet the preset conditions according to the actual speed and the target set speed, it further includes:

[0020] When the actual speed is greater than the second target set speed and the actual speed is less than or equal to the first target set speed, adjust the control parameters of the blower until the operating parameters of the gas water heater meet the preset conditions.

[0021] Optionally, adjusting the control parameters of the blower until the operating parameters of the gas water heater meet the preset conditions includes:

[0022] Adjust the control parameters of the blower and obtain the adjusted control parameters;

[0023] Determine the new actual speed corresponding to the gas water heater and the adjusted first target set speed and adjusted second target set speed according to the adjusted control parameters; and

[0024] Continue to execute the adjustment of the control parameters of the blower until the new actual speed is less than or equal to the adjusted second target set speed.

[0025] Optionally, before correcting the reference set speed according to the preset correction coefficient to obtain the target set speed, it further includes:

[0026] Obtain a first standard rotational speed and a second standard rotational speed, where the first standard rotational speed is the theoretical rotational speed of the gas water heater in a standard working environment, and the second standard rotational speed is the actual rotational speed of the gas water heater at the installation position and in the standard working environment; and

[0027] Determine a preset correction coefficient according to the first standard rotational speed and the second standard rotational speed.

[0028] Optionally, before obtaining the actual rotational speed of the blower when the blower starts, it further includes:[[]]END]]

[0029] When the gas water heater starts, obtain the water outlet rate of the gas water heater; and when the water outlet rate is greater than the set water outlet rate, start the blower.

[0030] In addition, to achieve the above object, the present invention also proposes a gas water heater control device, which includes:[[]]END]]

[0031] A reading module, configured to obtain the actual rotational speed and control parameters of the blower when the blower starts;

[0032] The reading module is further configured to obtain a reference set rotational speed corresponding to the control parameters;

[0033] A correction module, configured to correct the reference set rotational speed according to a preset correction coefficient to obtain a target set rotational speed;

[0034] A judgment module, configured to judge whether the operating parameters of the gas water heater meet preset conditions according to the actual rotational speed and the target set rotational speed;

[0035] A control module, configured to open the gas valve when the operating parameters of the gas water heater meet preset conditions.

[0036] In addition, to achieve the above object, the present invention also proposes a gas water heater, which includes: a memory, a processor, and a gas water heater control program stored on the memory and running on the processor, and the gas water heater control program is configured to implement the gas water heater control method as described above.

[0037] In addition, to achieve the above object, the present invention also proposes a storage medium, on which a gas water heater control program is stored, and when the gas water heater control program is executed by a processor, it implements the gas water heater control method as described above.

[0038] When the blower starts in the present invention, the actual rotation speed and control parameters of the blower are obtained; the reference set rotation speed corresponding to the control parameters is obtained; the reference set rotation speed is corrected according to a preset correction coefficient to obtain a target set rotation speed; whether the operating parameters of the gas water heater meet preset conditions is judged according to the actual rotation speed and the target set rotation speed; when the operating parameters of the gas water heater meet the preset conditions, the gas valve is opened, and whether the operating parameters of the gas water heater meet the preset conditions is judged by the actual rotation speed of the blower and the corrected target set rotation speed. After it is determined that the operating parameters of the gas water heater meet the preset conditions, the gas valve is opened again to control the operation of the gas water heater, so as to ensure that the gas water heater has a good combustion condition during the combustion operation process, avoid incomplete combustion and vibration combustion, and improve the practicability and safety of the gas water heater. Description of the Drawings

[0039] Figure 1 It is a schematic structural diagram of a gas water heater in the hardware operating environment involved in the embodiment solution of the present invention;

[0040] Figure 2 It is a schematic flowchart of the first embodiment of the gas water heater control method of the present invention;

[0041] Figure 3 It is a system structure block diagram of a gas water heater in an embodiment of the gas water heater control method of the present invention;

[0042] Figure 4 It is a schematic structural diagram of a gas water heater in an embodiment of the gas water heater control method of the present invention;

[0043] Figure 5 It is a schematic diagram of the difference between the standard rotation speed and the individual rotation speed of the gas water heater in an embodiment of the gas water heater control method of the present invention;

[0044] Figure 6 It is a schematic flowchart of the second embodiment of the gas water heater control method of the present invention;

[0045] Figure 7 It is a schematic flowchart of the third embodiment of the gas water heater control method of the present invention;

[0046] Figure 8 It is a schematic diagram of the mapping relationship between the rotation speed of the blower and the control output value of the blower in an embodiment of the gas water heater control method of the present invention;

[0047] Figure 9 It is a structural block diagram of the first embodiment of the gas water heater control device of the present invention.

[0048] Description of the Reference Numerals

[0049] 1 Burner 25 2 Combustion chamber 3 Smoke exhaust pipe 4 Fan 5 Gas valve 6 Heat exchanger 30

[0050] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0051] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0052] Refer to Figure 1 , Figure 1 which is a schematic structural diagram of a gas water heater for the hardware operating environment involved in the embodiment solution of the present invention.

[0053] As Figure 1 shown, the gas water heater may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display) and an input unit such as a keyboard (Keyboard). Optionally, the user interface 1003 may further include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless-fidelity (Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0054] Those skilled in the art can understand that Figure 1 the structure shown in

[0055] As Figure 1 shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a gas water heater control program.

[0056] In Figure 1In the gas water heater shown, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the gas water heater of the present invention can be arranged in the gas water heater. The gas water heater calls the gas water heater control program stored in the memory 1005 through the processor 1001 and executes the gas water heater control method provided by the embodiments of the present invention.

[0057] An embodiment of the present invention provides a gas water heater control method. Refer to Figure 2 , Figure 2 which is a schematic flowchart of the first embodiment of a gas water heater control method of the present invention.

[0058] In this embodiment, the gas water heater control method includes the following steps:

[0059] Step S10: When the blower starts, obtain the actual rotation speed and control parameters of the blower.

[0060] In this embodiment, the execution subject of this embodiment is the gas water heater control device. This gas water heater control device has functions such as data processing, data communication, and program operation. The gas water heater control device can be a computer device such as a tablet, a computer, or a server. Of course, it can also be other devices with similar functions, and this embodiment does not limit this. For the convenience of description, this embodiment is described by taking the gas water heater control device as an example.

[0061] It should be noted that currently, the operation of gas water heaters mostly supplies the gas combustion heat required to generate hot water through gas flow control. For gas water heaters with a blower, a corresponding blower speed is configured to provide a corresponding air volume to maintain combustion operation under good conditions. However, due to differences in installation environments and states, such as poor ventilation environments and backdraft of the exhaust pipe, it is easy to cause problems such as incomplete combustion and vibration combustion. Currently, gas water heaters cannot adjust themselves to improve problems such as incomplete combustion and vibration combustion, reducing the practicability and safety of gas water heaters.

[0062] To solve the above technical problems, in this embodiment, by detecting the control parameters and the rotation speed of the blower of the gas water heater, a control system is provided to adjust the control parameters of the blower to ensure good combustion conditions during the combustion operation of the water heater, to ensure the safety of the device and the user, and at the same time improve the practicability and safety of the gas water heater. Specifically, it can be implemented in the following manner.

[0063] In a specific implementation, to make the technical solutions involved in the implementation manners of the control methods in the present invention clearer, the present invention first proposes a gas water heater. Specifically, refer to Figure 3 , Figure 3 which is the structural block diagram of the gas water heater system of the present invention. In this embodiment, the gas water heater system includes a system control unit 100, a gas unit 200, a fan control unit 300, a water flow unit 400, a detection unit 500, and an exhaust fan 600.

[0064] Furthermore, in this embodiment, a specific structural schematic diagram of the gas water heater is also proposed. Refer to Figure 4 as shown.

[0065] As Figure 4 shown, the gas water heater in this embodiment includes a burner 1, a combustion chamber 2, a smoke exhaust pipe 3, a fan 4, a gas valve 5, and a heat exchanger 6. The gas water heater also includes a gas pipeline (not shown in the figure), and the gas pipeline is used to deliver gas to the burner 1. The gas in this embodiment can be a gas fuel such as natural gas. The fan 4 is used to deliver air to the burner 1. Among them, the gas valve 5 is arranged on the gas pipeline and is used to cut off, connect, and adjust the gas in the gas pipeline. The burner 1 is provided with a plurality of injection ports, and the fan 4 and the gas pipeline deliver air and gas to the burner 1 through these injection ports. Then, the burner 1 mixes the air and gas and injects them into the combustion chamber 2 for combustion. Finally, heat exchange is performed between the heat exchanger 6 and the combustion chamber 2 to heat the water in the water pipe. The smoke exhaust pipe 3 is used to discharge the smoke generated by the combustion in the combustion chamber 2 to the outside.

[0066] It should be noted that when the gas water heater is operating normally, the rotational speed of the fan is less than the set rotational speed, that is, the rotational speed threshold. In this embodiment, it is possible to determine whether to control the combustion operation of the gas water heater based on the rotational speed of the fan. First, in this embodiment, after detecting the start of the fan, the actual rotational speed of the fan and the control parameters are first obtained.

[0067] Furthermore, in this embodiment, the actual rotational speed of the fan is obtained after detecting the start of the fan. It should be emphasized that the start of the fan in this embodiment also requires meeting certain conditions.

[0068] In this embodiment, after detecting the start of the gas water heater, the water outlet rate of the gas water heater is monitored in real time, and then the water outlet rate is compared with the set water outlet rate. If the water outlet rate is greater than the set water outlet rate, the fan of the gas water heater can be started; otherwise, the fan of the gas water heater cannot be started. The water outlet rate in this embodiment is the water flow rate per unit time, and the set water outlet rate can be set accordingly according to actual needs. This embodiment does not limit this.

[0069] Step S20: Obtain the reference set rotational speed corresponding to the control parameter.

[0070] In a specific implementation, after determining the control parameter, the control parameter in this embodiment corresponds to the control output value of the fan, and there is a corresponding relationship between the control output value and the reference set rotational speed. According to this corresponding relationship, the reference set rotational speed corresponding to different control parameters of the fan can be determined.

[0071] Step S30: Modify the reference set rotational speed according to a preset correction coefficient to obtain the target set rotational speed.

[0072] In a specific implementation, due to factors such as installation environment and state differences, there are differences in the fan and the whole machine system. Therefore, it is necessary to perform a certain modification on the basis of the reference set rotational speed to obtain the target set rotational speed. Specifically, in this embodiment, the reference set rotational speed can be modified according to the preset correction coefficient.

[0073] Further, the preset correction coefficient in this embodiment can be determined according to the standard rotational speed. Specifically, in this embodiment, the first standard rotational speed and the second standard rotational speed are first obtained. Among them, the first standard rotational speed is the theoretical rotational speed of the gas water heater in the standard working environment, and the second standard rotational speed is the actual rotational speed of the gas water heater at the installation position and in the standard working environment. This embodiment is described with reference to Figure 5 for illustration. Figure 5 In the figure, R0 shown is the first standard rotational speed, Rn is the actual rotational speed after the installation of the gas water heater, and the preset correction coefficient is dn = Rn - R0.

[0074] Step S40: Determine whether the operating parameters of the gas water heater meet the preset conditions according to the actual rotational speed and the target set rotational speed.

[0075] In a specific implementation, after obtaining the actual rotational speed of the fan, in this embodiment, it is determined whether the operating parameters of the gas water heater meet the preset conditions through the actual rotational speed. Among them, when the operating parameters of the gas water heater meet the preset conditions, it indicates that the gas water heater meets the combustion operation and has a good combustion condition. Specifically, in this embodiment, it can be determined whether the operating parameters of the gas water heater meet the preset conditions according to the magnitude of the actual rotational speed.

[0076] Step S50: Open the gas valve when the operating parameters of the gas water heater meet the preset conditions.

[0077] In a specific implementation, when the operating parameters of the gas water heater meet the preset conditions, it indicates that the gas water heater can burn and operate at this time and can ensure a good combustion condition. In this case, in this embodiment, the gas valve will be opened so that the gas in the gas pipeline is transported to the burner, thereby enabling the gas water heater to start burning and operating.

[0078] In this embodiment, when the blower is started, the actual speed and control parameters of the blower are obtained; the reference set speed corresponding to the control parameters is obtained; the reference set speed is corrected according to a preset correction coefficient to obtain a target set speed; whether the operating parameters of the gas water heater meet the preset conditions is judged according to the actual speed and the target set speed; when the operating parameters of the gas water heater meet the preset conditions, the gas valve is opened, and whether the operating parameters of the gas water heater meet the preset conditions is judged by the actual speed of the blower and the corrected target set speed. After it is determined that the operating parameters of the gas water heater meet the preset conditions, the gas valve is opened again to control the operation of the gas water heater, so as to ensure that the gas water heater has a good combustion condition during the combustion operation process, avoid incomplete combustion and vibration combustion, and improve the practicability and safety of the gas water heater.

[0079] Reference Figure 6 , Figure 6 is a schematic flow chart of the second embodiment of a gas water heater control method according to the present invention.

[0080] Based on the above first embodiment, in the gas water heater control method of this embodiment, the step S40 specifically includes:

[0081] Step S401: When the actual speed is less than or equal to the second target set speed, it is determined that the operating parameters of the gas water heater meet the preset conditions.

[0082] In specific implementation, in this embodiment, the actual speed is compared with the target set speed, and based on the comparison result, it is determined whether the operating parameters of the gas water heater meet the preset conditions.

[0083] It should be noted that the target set speed includes a first target set speed and a second target set speed, where the first target set speed is greater than the second target set speed.

[0084] Step S402: When the actual speed is greater than the first target set speed, or when the actual speed is greater than the second target set speed and the actual speed is less than or equal to the first target set speed, it is determined that the operating parameters of the gas water heater do not meet the preset conditions.

[0085] In specific implementation, since the initial first set speed is greater than the initial second set speed, in this embodiment, the actual speed is first compared with the initial first set speed, and then the initial second set speed is compared with the actual speed.

[0086] If the actual rotational speed is less than or equal to the second target set rotational speed, it is determined that the operating parameters of the gas water heater meet the preset conditions. Conversely, if the actual rotational speed is greater than the second target set rotational speed, it is determined that the operating parameters of the gas water heater do not meet the preset conditions at this time, and combustion operation cannot be carried out yet.

[0087] Further, in this embodiment, the situation where the actual rotational speed is greater than the second target set rotational speed is divided into two cases. The first case is that the actual rotational speed is not only greater than the second target set rotational speed but also greater than the first target set rotational speed. For this case, it indicates that the rotational speed of the blower has exceeded the rotational speed threshold at this time. To ensure the safety of the gas water heater, in this embodiment, the gas valve will be closed or an alarm will be given.

[0088] The second case is that the actual rotational speed is greater than the second target set rotational speed but less than or equal to the first target set rotational speed. This situation is caused by an increase in flue resistance. For this case, in this embodiment, the method of adjusting the control parameters of the blower is adopted to increase the air volume of the blower until the operating parameters of the gas water heater can meet the preset conditions, and then after the operating parameters of the gas water heater meet the preset conditions, the gas water heater is controlled to perform combustion operation.

[0089] In this embodiment, when the actual rotational speed is less than or equal to the second target set rotational speed, it is determined that the operating parameters of the gas water heater meet the preset conditions; when the actual rotational speed is greater than the first target set rotational speed, or the actual rotational speed is greater than the second target set rotational speed and the actual rotational speed is less than or equal to the first target set rotational speed, it is determined that the operating parameters of the gas water heater do not meet the preset conditions. Through the first target set rotational speed and the second target set rotational speed, an accurate judgment is made when the operating parameters of the gas water heater meet the preset conditions. At the same time, when the operating parameters of the gas water heater do not meet the preset conditions, measures such as closing the gas valve, giving an alarm, and adjusting the control parameters of the blower are taken to ensure the safety of users during the use of the gas water heater.

[0090] Reference Figure 7 , Figure 7 is a schematic flowchart of the third embodiment of a gas water heater control method of the present invention.

[0091] Based on the above second embodiment, the third embodiment of a gas water heater control method of the present invention is proposed.

[0092] In this embodiment, after the step S40, it further includes:

[0093] Step S403: When the actual rotational speed is greater than the second target set rotational speed and the actual rotational speed is less than or equal to the first target set rotational speed, adjust the control parameters of the blower until the operating parameters of the gas water heater meet the preset conditions.

[0094] In a specific implementation, for the case where the actual speed is greater than the second target set speed but less than the first target set speed, the method adopted in this embodiment is to adjust the control parameters of the blower. By adjusting the control parameters of the blower, the air volume of the blower is increased, so that the operating parameters of the gas water heater meet the preset conditions.

[0095] It should be noted that the control parameters of the blower in this embodiment, that is, the control output value of the blower, include but are not limited to parameters such as the voltage, current, and duty cycle input to the blower. In this embodiment, adjusting the control parameters of the blower is to increase the control output value of the blower according to a certain proportion. For example, if the control output value corresponding to the control parameter before adjustment is PR and the adjustment amplitude is dR, then the control output value corresponding to the adjusted control parameter is PR + dR.

[0096] Furthermore, as the control output value increases, the corresponding actual speed of the blower, the first target set speed, and the second target set speed will also increase. In this embodiment, the new actual speed, the adjusted first target set speed, and the adjusted second target set speed corresponding to the adjusted control parameter can be determined according to the preset mapping relationship. The mapping relationship is as follows Figure 8 shown, where R1 is the first target set speed and R2 is the second target set speed. According to Figure 8 it can be known that the adjusted first target set speed is greater than the first target set speed, the adjusted second target set speed is greater than the second target set speed, but the magnitude relationship between the adjusted first target set speed and the adjusted second target set speed remains unchanged. It should be emphasized that even though the actual speed and the set speed are both increasing, in this embodiment, the increasing speed of the set speed corresponding to the control output value is faster than the increasing speed of the actual speed. That is, when the actual speed is greater than the second target set speed, by adjusting the control parameters and combining the above different increasing speeds, finally the new actual speed will be less than the adjusted second target set speed, so that the operating parameters of the gas water heater meet the preset conditions.

[0097] In this embodiment, when the actual speed is greater than the second target set speed and the actual speed is less than or equal to the first target set speed, the control parameters of the blower are adjusted, and the adjusted control parameters are obtained; the new actual speed, the adjusted first target set speed, and the adjusted second target set speed corresponding to the gas water heater are determined according to the adjusted control parameters; continue to adjust the control parameters of the blower until the new actual speed is less than or equal to the adjusted second target set speed. When the operating parameters of the gas water heater meet the preset conditions, by adjusting the control parameters of the blower, the operating parameters of the gas water heater are made to meet the preset conditions, which improves the safety of the user when using the gas water heater.

[0098] In addition, an embodiment of the present invention further provides a storage medium, on which a gas water heater control program is stored. When the gas water heater control program is executed by a processor, the steps of the gas water heater control method described above are implemented.

[0099] Since this storage medium adopts all the technical solutions of the above-mentioned all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated here one by one.

[0100] Refer to Figure 9 , Figure 9 which is a structural block diagram of the first embodiment of the gas water heater control device of the present invention.

[0101] As Figure 9 shown, the gas water heater control device proposed by the embodiment of the present invention includes:

[0102] A reading module 10, configured to obtain the actual rotation speed and control parameters of the blower when the blower starts.

[0103] It should be noted that currently, the operation of gas water heaters mostly supplies the gas combustion heat required to generate hot water through gas flow control. For gas water heaters with blowers, corresponding blower speeds are configured to provide corresponding air volumes to maintain combustion operation under good conditions. However, due to differences in installation environments and states, such as poor ventilation environments and backflow of exhaust air into the exhaust pipe, etc., it is easy to cause problems such as incomplete combustion and vibration combustion. Currently, gas water heaters cannot adjust themselves to improve problems such as incomplete combustion and vibration combustion, reducing the practicability and safety of gas water heaters.

[0104] To solve the above technical problems, in this embodiment, by detecting the control parameters and rotation speed of the blower of the gas water heater, a control system is provided to adjust the control parameters of the blower to ensure good combustion conditions during the combustion operation of the water heater, to ensure the safety of the equipment and users, and at the same time improve the practicability and safety of the gas water heater. Specifically, it can be implemented in the following manner.

[0105] In specific implementation, to make the technical solutions involved in the implementation manners of the control methods in the present invention clearer, the present invention first proposes a gas water heater. Specifically refer to Figure 3 , Figure 3 which is a structural block diagram of the gas water heater system of the present invention. In this embodiment, the gas water heater system includes a system control unit 100, a gas unit 200, a blower control unit 300, a water flow unit 400, a detection unit 500, and an exhaust blower 600.

[0106] Furthermore, in this embodiment, a specific structural schematic diagram of the gas water heater is also proposed. Refer toFigure 4 as shown

[0107] As Figure 4 shown, the gas water heater in this embodiment includes a burner 1, a combustion chamber 2, a smoke exhaust pipe 3, a blower 4, a gas valve 5, and a heat exchanger 6. The gas water heater also includes a gas pipeline (not shown in the figure), and the gas pipeline is used to supply gas to the burner 1. The gas in this embodiment can be a gas fuel such as natural gas. The blower 4 is used to supply air to the burner 1. Among them, the gas valve 5 is arranged on the gas pipeline and is used to cut off, connect, and adjust the gas in the gas pipeline. The burner 1 is provided with a plurality of injection ports, and the blower 4 and the gas pipeline supply air and gas to the burner 1 through these injection ports. Then, the burner 1 mixes the air and gas and sprays them into the combustion chamber 2 for combustion. Finally, heat exchange is performed between the heat exchanger 6 and the combustion chamber 2 to heat the water in the water pipe. The smoke exhaust pipe 3 is used to discharge the smoke exhausted from the combustion in the combustion chamber 2 to the outside

[0108] It should be noted that when the gas water heater is operating normally, the rotation speed of the blower is less than the set rotation speed, that is, the rotation speed threshold. In this embodiment, it is possible to determine whether to control the combustion operation of the gas water heater based on the rotation speed of the blower. First, in this embodiment, after detecting the start of the blower, the actual rotation speed of the blower and the control parameters are obtained first

[0109] Furthermore, in this embodiment, the actual rotation speed of the blower is obtained after detecting the start of the blower. It should be emphasized that the start of the blower in this embodiment also needs to meet certain conditions

[0110] In this embodiment, after detecting the start of the gas water heater, the water outlet rate of the gas water heater is monitored in real time in this embodiment, and then the water outlet rate is compared with the set water outlet rate. If the water outlet rate is greater than the set water outlet rate, the blower of the gas water heater can be started; otherwise, the blower of the gas water heater cannot be started. The water outlet rate in this embodiment is the water flow rate per unit time, and the set water outlet rate can be set accordingly according to actual needs, and this embodiment does not limit this

[0111] The reading module 10 is further configured to obtain the reference set rotation speed corresponding to the control parameter

[0112] In a specific implementation, after determining the control parameter, the control parameter in this embodiment corresponds to the control output value of the blower, and there is a corresponding relationship between the control output value and the reference set rotation speed. According to this corresponding relationship, the reference set rotation speed corresponding to different control parameters of the blower can be determined

[0113] The correction module 20 is configured to correct the reference set rotation speed according to a preset correction coefficient to obtain a target set rotation speed

[0114] In specific implementation, due to factors such as installation environment and state differences, there are differences in fans and complete systems, so it is necessary to make certain corrections based on the reference set speed to obtain the target set speed. Specifically, in this embodiment, the reference set speed can be corrected according to a preset correction coefficient.

[0115] Furthermore, the preset correction coefficient in this embodiment can be determined according to the standard speed. Specifically, in this embodiment, the first standard speed and the second standard speed are first obtained, wherein the first standard speed is the theoretical speed of the gas water heater under the standard working environment, and the second standard speed is the actual speed of the gas water heater at the installation position and under the standard working environment. Figure 5 Provide explanation. Figure 5 R0 shown in is the first standard speed, Rn is the actual speed after the gas water heater is installed, and the preset correction coefficient is dn=Rn-R0.

[0116] The judgment module 30 is used to judge whether the operating parameters of the gas water heater meet the preset conditions according to the actual rotation speed and the target setting rotation speed.

[0117] In a specific implementation, after obtaining the actual speed of the fan, the present embodiment determines whether the gas water heater can perform combustion operation by using the actual speed, wherein the operating parameters of the gas water heater satisfy the preset conditions, indicating that the gas water heater satisfies the combustion operation and has a good combustion condition. Specifically, in the present embodiment, it can be determined whether the operating parameters of the gas water heater satisfy the preset conditions according to the size of the actual speed.

[0118] The control module 40 is used to open the gas valve when the operating parameters of the gas water heater meet preset conditions.

[0119] In a specific implementation, when the operating parameters of the gas water heater meet the preset conditions, it means that the gas water heater can burn and operate at this time and can ensure a good combustion condition. In this case, the gas valve will be opened in this embodiment to allow the gas in the gas pipeline to be transported to the burner, thereby causing the gas water heater to start burning and operating.

[0120] In this embodiment, when the fan is started, the actual speed and control parameters of the fan are obtained; the reference set speed corresponding to the control parameters is obtained; the reference set speed is corrected according to a preset correction coefficient to obtain a target set speed; whether the operating parameters of the gas water heater meet the preset conditions is judged according to the actual speed and the target set speed; when the operating parameters of the gas water heater meet the preset conditions, the gas valve is opened, and whether the operating parameters of the gas water heater meet the preset conditions is judged by the actual speed of the fan and the corrected target set speed. After it is determined that the operating parameters of the gas water heater meet the preset conditions, the gas valve is opened again to control the operation of the gas water heater, so as to ensure that the gas water heater has a good combustion condition during the combustion operation process, avoid incomplete combustion and vibration combustion, and improve the practicability and safety of the gas water heater.

[0121] It should be understood that the above is only an example and does not constitute any limitation to the technical solution of the present invention. In specific applications, those skilled in the art can set according to needs, and the present invention does not make any restrictions in this regard.

[0122] It should be noted that the above-described work flow is only illustrative and does not limit the protection scope of the present invention. In actual applications, those skilled in the art can select some or all of them according to actual needs to achieve the purpose of the solution of this embodiment, and no restrictions are made here.

[0123] In addition, for the technical details not described in detail in this embodiment, reference can be made to the gas water heater control method provided in any embodiment of the present invention, which will not be elaborated here.

[0124] In addition, it should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or system. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or system including that element.

[0125] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments.

[0126] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as a read-only memory (ROM) / RAM, magnetic disk, optical disk), and includes several instructions for causing a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0127] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A gas water heater control method, characterized in that, the gas water heater includes a gas valve, a blower, a burner and a gas pipeline, and the blower is used to deliver air; the gas water heater control method includes: when the blower starts, obtaining the actual rotation speed and control parameters of the blower; obtaining the reference set rotation speed corresponding to the control parameters; obtaining a first standard rotation speed and a second standard rotation speed, where the first standard rotation speed is the theoretical rotation speed of the gas water heater in a standard working environment, and the second standard rotation speed is the actual rotation speed of the gas water heater at the installation position and in the standard working environment; and determining a preset correction coefficient according to the first standard rotation speed and the second standard rotation speed; correcting the reference set rotation speed according to the preset correction coefficient to obtain a target set rotation speed; judging whether the operating parameters of the gas water heater meet preset conditions according to the actual rotation speed and the target set rotation speed, where the preset conditions are that the gas water heater meets combustion operation and has a good combustion condition; and when the operating parameters of the gas water heater meet the preset conditions, opening the gas valve.

2. The gas water heater control method according to claim 1, characterized in that, the target set rotation speed includes a first target set rotation speed and a second target set rotation speed, and the first target set rotation speed is greater than the second target set rotation speed; the judging whether the operating parameters of the gas water heater meet preset conditions according to the actual rotation speed and the target set rotation speed includes: when the actual rotation speed is less than or equal to the second target set rotation speed, determining that the operating parameters of the gas water heater meet the preset conditions; and when the actual rotation speed is greater than the first target set rotation speed, or when the actual rotation speed is greater than the second target set rotation speed and the actual rotation speed is less than or equal to the first target set rotation speed, determining that the operating parameters of the gas water heater meet the preset conditions.

3. The gas water heater control method according to claim 2, characterized in that, after judging whether the operating parameters of the gas water heater meet preset conditions according to the actual rotation speed and the target set rotation speed, it further includes: when the actual rotation speed is greater than the first target set rotation speed, closing the gas valve and / or giving an alarm.

4. The gas water heater control method according to claim 2, characterized in that, after judging whether the operating parameters of the gas water heater meet preset conditions according to the actual rotation speed and the target set rotation speed, it further includes: when the actual rotation speed is greater than the second target set rotation speed and the actual rotation speed is less than or equal to the first target set rotation speed, adjusting the control parameters of the blower until the operating parameters of the gas water heater meet the preset conditions.

5. The gas water heater control method according to claim 4, characterized in that, the adjusting the control parameters of the blower until the operating parameters of the gas water heater meet the preset conditions includes: adjusting the control parameters of the blower and obtaining the adjusted control parameters; Determine the new actual rotation speed of the gas water heater, the adjusted first target set rotation speed, and the adjusted second target set rotation speed according to the adjusted control parameters; and Continue to execute the adjustment of the control parameters of the blower until the new actual rotation speed is less than or equal to the adjusted second target set rotation speed.

6. The gas water heater control method according to any one of claims 1 to 5, characterized in that before obtaining the actual rotation speed of the blower when the blower starts, further includes: When the gas water heater starts, obtain the water outlet rate of the gas water heater; and When the water outlet rate is greater than the set water outlet rate, start the blower.

7. A gas water heater control device,[[]]ID=8]]characterized in that The gas water heater includes a gas valve, a blower, a burner, and a gas pipeline, and the blower is used to convey air; The gas water heater control device includes: A reading module for obtaining the actual rotation speed and control parameters of the blower when the blower starts; The reading module is further configured to obtain the reference set rotation speed corresponding to the control parameters; A correction module for obtaining a first standard rotation speed and a second standard rotation speed, where the first standard rotation speed is the theoretical rotation speed of the gas water heater in a standard working environment, and the second standard rotation speed is the actual rotation speed of the gas water heater at the installation position and in the standard working environment; determine a preset correction coefficient according to the first standard rotation speed and the second standard rotation speed; correct the reference set rotation speed according to the preset correction coefficient to obtain the target set rotation speed; A judgment module for judging whether the operating parameters of the gas water heater meet a preset condition according to the actual rotation speed and the target set rotation speed, where the preset condition is that the gas water heater meets the combustion operation and has a good combustion condition; A control module for opening the gas valve when the operating parameters of the gas water heater meet the preset condition.

8. A gas water heater,[[]]ID=17]]characterized in that The gas water heater includes: a memory, a processor, and a gas water heater control program stored on the memory and running on the processor, and the gas water heater control program is configured to implement the gas water heater control method according to any one of claims 1 to 6.

9. A storage medium,[[]]ID=20]]characterized in that The storage medium stores a gas water heater control program, and when the gas water heater control program is executed by a processor, it implements the gas water heater control method according to any one of claims 1 to 6. ​ ​ ​

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