CN115808023A - Gas water heater control method and device, gas water heater and storage medium - Google Patents
Gas water heater control method and device, gas water heater and storage medium Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 64
- 238000012937 correction Methods 0.000 claims abstract description 84
- 238000009434 installation Methods 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 abstract description 61
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- 239000007789 gas Substances 0.000 description 239
- 238000010586 diagram Methods 0.000 description 13
- 239000000779 smoke Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
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Abstract
The invention discloses a gas water heater control method and device, a gas water heater and a storage medium, and belongs to the technical field of household appliances. According to the invention, when the fan is started, the current rotating speed and the set output value of the fan are obtained; acquiring a set rotating speed corresponding to the set force value; correcting the current rotating speed according to a preset correction coefficient to obtain the current corrected rotating speed; judging whether the gas water heater meets a preset state or not according to the current correction rotating speed and the set rotating speed; when the gas water heater meets the preset state, the gas valve is opened, whether the preset state is met by the gas water heater is judged by correcting the rotating speed and setting the rotating speed currently, after the preset state is determined to be met by the gas water heater, the gas valve is opened again, the gas water heater is controlled to operate, the water heater is ensured to have a good combustion condition in the combustion operation process, the situations of incomplete combustion and vibration combustion are avoided, and the practicability and the safety of the gas water heater are improved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a gas water heater control method and device, a gas water heater and a storage medium.
Background
Most of the existing gas water heaters run through gas flow control to supply gas combustion heat required by hot water generation. For the gas water heater with the blower, the corresponding blower rotating speed is matched to provide the corresponding air quantity so as to maintain the combustion operation under good conditions.
However, due to differences in installation environment and state, for example: the problems of incomplete combustion, vibration combustion and the like are easily caused by factors such as poor ventilation environment, backward wind flowing of the smoke exhaust pipe and the like. At present, an effective mode is not available for solving the existing problems, and the practicability and the safety of the gas water heater are reduced.
The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.
The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.
Disclosure of Invention
The invention mainly aims to provide a control method and device for a gas water heater, the gas water heater and a storage medium, and aims to solve the technical problems that incomplete combustion and vibration combustion conditions of the gas water heater cannot be effectively solved, and the practicability and safety of the gas water heater are reduced in the prior art.
In order to achieve the above object, the present invention provides a control method for a gas water heater, the control method being applied to a gas water heater, the gas water heater comprising a gas valve, a fan, a burner and a gas pipeline, the gas pipeline being used for delivering gas to the burner, the fan being used for delivering air to the burner, the gas valve being disposed on the gas pipeline;
the control method of the gas water heater comprises the following steps:
when the fan is started, acquiring the current rotating speed and the set output value of the fan;
acquiring a set rotating speed corresponding to the set force value;
correcting the current rotating speed according to a preset correction coefficient to obtain the current corrected rotating speed;
judging whether the gas water heater meets a preset state or not according to the current correction rotating speed and the set rotating speed; and
and when the gas water heater meets a preset state, the gas valve is opened.
Optionally, the set rotation speed comprises a first set rotation speed and a second set rotation speed, and the second set rotation speed is smaller than the first set rotation speed;
the judging whether the gas water heater meets a preset state according to the current correction rotating speed and the set rotating speed comprises the following steps:
when the second set rotating speed is greater than or equal to the current correction rotating speed, determining that the gas water heater meets a preset state; and
and when the first set rotating speed is less than the current correction rotating speed, or the second set rotating speed is less than the current correction rotating speed and the first set rotating speed is greater than or equal to the current correction rotating speed, determining that the gas water heater does not meet the preset state.
Optionally, after determining whether the gas water heater satisfies a preset state according to the current correction rotating speed and the set rotating speed, the method further includes:
and when the first set rotating speed is less than the current correction rotating speed, the gas valve and/or the output alarm prompt are/is given.
Optionally, after determining whether the gas water heater satisfies a preset state according to the current correction rotating speed and the set rotating speed, the method further includes:
and when the second set rotating speed is less than the current correction rotating speed and the first set rotating speed is greater than or equal to the current correction rotating speed, adjusting the set output value of the fan until the gas water heater meets a preset state.
Optionally, the adjusting the set output value of the fan until the gas water heater meets a preset state includes:
adjusting the set force value of the fan, and acquiring the adjusted set force value;
determining a new current correction rotating speed corresponding to the gas water heater, an adjusted first set rotating speed and an adjusted second set rotating speed according to the adjusted set output value; and
and continuing to adjust the set force value of the fan until the adjusted second set rotating speed is greater than or equal to the new current correction rotating speed.
Optionally, the modifying the current rotation speed according to a preset modification coefficient further includes, before obtaining the current modified rotation speed:
acquiring a first standard rotating speed and a second standard rotating speed, wherein the first standard rotating speed is a theoretical rotating speed of the gas water heater in a standard working environment, and the second standard rotating speed is an actual rotating speed of the gas water heater in an installation position and in the standard working environment; and
and determining a preset correction coefficient according to the first standard rotating speed and the second standard rotating speed.
Optionally, when the fan is started, before obtaining the current rotation speed and the set output value of the fan, the method further includes:
acquiring the water outlet rate of the gas water heater when the gas water heater is started; and
and comparing the water outlet rate with a set water outlet rate, and starting the fan of the gas water heater when the set water outlet rate is smaller than the water outlet rate.
In addition, in order to achieve the above object, the present invention further provides a gas water heater control device, including: a
The reading module is used for acquiring the current rotating speed and the set output value of the fan when the fan is started;
the reading module is further used for acquiring a set rotating speed corresponding to the set force value;
the correction module is used for correcting the current rotating speed according to a preset correction coefficient to obtain the current corrected rotating speed;
the judging module is used for judging whether the gas water heater meets a preset state or not according to the current correction rotating speed and the set rotating speed;
and the control module is used for opening the gas valve when the gas water heater meets a preset state.
In addition, in order to achieve the above object, the present invention further provides a gas water heater, including: a memory, a processor and a gas water heater control program stored on the memory and run on the processor, the gas water heater control program configured to implement the gas water heater control method as described above.
In addition, in order to achieve the above object, the present invention further provides a storage medium having a gas water heater control program stored thereon, wherein the gas water heater control program, when executed by a processor, implements the gas water heater control method as described above.
According to the invention, when the fan is started, the current rotating speed and the set output value of the fan are obtained; acquiring a set rotating speed corresponding to the set force value; correcting the current rotating speed according to a preset correction coefficient to obtain the current corrected rotating speed; judging whether the gas water heater meets a preset state or not according to the current correction rotating speed and the set rotating speed; when the gas water heater meets the preset state, the gas valve is opened, whether the preset state is met by the gas water heater is judged by correcting the rotating speed and setting the rotating speed currently, after the preset state is determined to be met by the gas water heater, the gas valve is opened again, the gas water heater is controlled to operate, the water heater is ensured to have a good combustion condition in the combustion operation process, the situations of incomplete combustion and vibration combustion are avoided, and the practicability and the safety of the gas water heater are improved.
Drawings
FIG. 1 is a schematic diagram of a gas water heater in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a first embodiment of the control method for a gas water heater of the present invention;
FIG. 3 is a block diagram of a gas water heater system according to an embodiment of the gas water heater control method of the present invention;
FIG. 4 is a schematic structural diagram of a gas water heater according to an embodiment of the control method of the gas water heater of the present invention;
FIG. 5 is a schematic diagram illustrating the difference between the standard rotation speed and the individual rotation speed of the gas water heater according to an embodiment of the control method of the gas water heater of the present invention;
FIG. 6 is a schematic flow chart diagram of a second embodiment of the gas water heater control method of the present invention;
FIG. 7 is a schematic flow chart of a third embodiment of the control method for a gas water heater of the present invention;
FIG. 8 is a schematic diagram illustrating a mapping relationship between a fan speed and a fan control output value according to an embodiment of the method for controlling a gas water heater of the present invention;
fig. 9 is a block diagram showing the structure of the first embodiment of the control device for a gas water heater according to the present invention.
Description of the reference numerals
| 1 | |
| 2 | |
| 3 | Smoke exhaust pipe |
| 4 | |
| 5 | |
| 6 | Heat exchanger |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a gas water heater in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, 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. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in FIG. 1 does not constitute a limitation of the gas water heater, and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and a gas water heater control program.
In the gas water heater shown in fig. 1, 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 a user; the processor 1001 and the memory 1005 of the gas water heater of the present invention may be disposed in the gas water heater, and 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 embodiment of the present invention.
An embodiment of the present invention provides a method for controlling a gas water heater, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the method for controlling a gas water heater according to the present invention.
In this embodiment, the control method of the gas water heater includes the following steps:
step S10: and when the fan is started, acquiring the current rotating speed and the set output value of the fan.
In this embodiment, the main execution body of this embodiment is the gas water heater control device, the gas water heater control device has functions of data processing, data communication, program operation, and the like, and the gas water heater control device may be a computer device such as a tablet, a computer, or a server. Of course, other devices with similar functions may be used, and the present embodiment is not limited thereto. For convenience of explanation, the present embodiment will be described taking a gas water heater control device as an example.
In most of the conventional gas water heaters, the amount of combustion heat required for hot water generation is controlled by gas flow control. For the gas water heater with the blower, the corresponding blower rotating speed is matched to provide the corresponding air quantity so as to maintain the combustion operation under good conditions. However, due to differences in installation environment and state, for example: the problems of incomplete combustion, vibration combustion and the like are easily caused by factors such as poor ventilation environment, backward wind flowing of the smoke exhaust pipe and the like. The existing gas water heater can not be controlled and adjusted by the gas water heater to solve the problems of incomplete combustion, vibration combustion and the like, and the practicability and safety of the gas water heater are reduced.
In order to solve the above technical problem, in this embodiment, a control system is provided for adjusting a set force value of a fan of a gas water heater by detecting the set force value and a fan rotation speed of the fan, so as to ensure that a good combustion condition is ensured during a combustion operation of the gas water heater, so as to ensure safety of equipment and a user, and improve practicality and safety of the gas water heater, and specifically, the following method is implemented.
In the concrete implementation, in order to make the technical scheme related to the implementation mode of each control method in the invention clearer, the invention provides a gas water heater. Referring specifically to fig. 3, fig. 3 is a block diagram of the gas water heater system of the present invention. The gas water heater system in this embodiment 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.
Further, in this embodiment, a specific structural schematic diagram of the gas water heater is also provided, which is shown with reference to fig. 4.
As shown in fig. 4, the gas water heater in the present 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. Still include gas pipeline (not shown in the figure) among the gas heater, gas pipeline is used for carrying the gas to combustor 1, and the gas in this embodiment can be gas fuel such as natural gas, and fan 4 is used for carrying the air to combustor 1, and wherein, gas valve 5 sets up on gas pipeline for cut off, put through and adjust the gas in the gas pipeline. The combustor 1 is provided with a plurality of injection ports, the fan 4 and the gas pipeline convey air and gas into the combustor 1 through the injection ports, then the combustor 1 mixes the air and the gas and then injects the mixture into the combustion chamber 2 for combustion, and finally the mixture exchanges heat with the combustion chamber 2 through the heat exchanger 6 so as to heat water in the water pipe. The smoke exhaust pipe 3 is used for exhausting smoke exhausted by combustion in the combustion chamber 2 to the outside.
It should be noted that, when the gas water heater operates normally, the rotation speed of the fan is less than the set rotation speed, that is, the rotation speed threshold, and in this embodiment, whether to control the combustion operation of the gas water heater may be determined based on the rotation speed of the fan. Firstly, in the embodiment, after the start of the fan is detected, the current rotating speed of the fan and a set force value are obtained.
Further, in this embodiment, after the start of the fan is detected, the current rotation speed of the fan is obtained, but it should be emphasized that the start of the fan in this embodiment also needs to satisfy a certain condition.
In this embodiment, after the start of the gas water heater is detected, 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 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 water flow/unit time, and the set water outlet rate may be set accordingly according to actual needs, which is not limited in this embodiment.
Step S20: and acquiring the set rotating speed corresponding to the set force value.
In a specific implementation, after the set output value is determined, the set output value in the embodiment corresponds to the control output value of the fan, a corresponding relationship exists between the control output value and the set rotating speed, and the set rotating speeds corresponding to different set output values of the fan can be determined according to the corresponding relationship.
Step S30: and correcting the current rotating speed according to a preset correction coefficient to obtain the current corrected rotating speed.
In the specific implementation, due to factors such as installation environment and state difference, the fan and the whole system have difference, and therefore certain correction needs to be performed on the basis of referring to the set rotating speed to obtain the set corrected rotating speed. Specifically, in this embodiment, the current rotation speed may be corrected according to a preset correction coefficient.
Further, the preset correction coefficient in the present embodiment may be determined according to the standard rotation speed. Specifically, in this embodiment, a first standard rotation speed and a second standard rotation speed are obtained first, where the first standard rotation speed is a theoretical rotation speed of the gas water heater in a standard working environment, and the second standard rotation speed is an actual rotation speed of the gas water heater in an installation position and in the standard working environment, which is described with reference to fig. 5 in this embodiment. R0 shown in fig. 5 is a first standard rotation speed, rn is an actual rotation speed after the gas water heater is installed, and the preset correction coefficient is dn = Rn-R0.
Step S40: and judging whether the gas water heater meets a preset state or not according to the current correction rotating speed and the set rotating speed.
In a specific implementation, after the current correction rotating speed and the set rotating speed are obtained, in this embodiment, whether the gas water heater can perform the combustion operation is determined according to the current correction rotating speed and the set rotating speed, where the preset state is a state when the gas water heater satisfies the combustion operation and has a good combustion condition. Specifically, in this embodiment, whether the gas water heater satisfies the preset state can be determined according to the current rotating speed.
Step S50: and when the gas water heater meets a preset state, the gas valve is opened.
In concrete implementation, when the gas heater satisfies preset state, the gas heater at this moment can burn the operation to can guarantee good burning situation, under this condition, can open the gas valve in this embodiment, make the gas in the gas pipeline carry to the combustor in, thereby make the gas heater begin to burn the operation.
In the embodiment, when the fan is started, the current rotating speed and the set output value of the fan are obtained; acquiring a set rotating speed corresponding to the set force value; correcting the current rotating speed according to a preset correction coefficient to obtain the current corrected rotating speed; judging whether the gas water heater meets a preset state or not according to the current correction rotating speed and the set rotating speed; when the gas water heater meets the preset state, the gas valve is opened, whether the preset state is met by the gas water heater is judged by correcting the rotating speed and setting the rotating speed currently, after the preset state is determined to be met by the gas water heater, the gas valve is opened again, the gas water heater is controlled to operate, the water heater is ensured to have a good combustion condition in the combustion operation process, the situations of incomplete combustion and vibration combustion are avoided, and the practicability and the safety of the gas water heater are improved.
Referring to fig. 6, fig. 6 is a flow chart illustrating a second embodiment of the control method of the gas water heater according to the present invention.
Based on the first embodiment, in the control method of the gas water heater in this embodiment, the step S40 specifically includes:
step S401: and when the second set rotating speed is greater than or equal to the current correction rotating speed, determining that the gas water heater meets a preset state.
In a specific implementation, the current corrected rotation speed is compared with the set rotation speed in the embodiment, and whether the gas water heater meets the preset state is determined based on the comparison result.
It should be noted that the set rotation speed includes a first set rotation speed and a second set rotation speed, where the first set rotation speed is greater than the second set rotation speed.
Step S402: and when the first set rotating speed is less than the current correction rotating speed, or the second set rotating speed is less than the current correction rotating speed and the first set rotating speed is greater than or equal to the current correction rotating speed, determining that the gas water heater does not meet the preset state.
In a specific implementation, since the first set rotation speed is greater than the second set rotation speed, in this embodiment, the current correction rotation speed is compared with the first set rotation speed, and then the second set rotation speed is compared with the current correction rotation speed.
And if the current correction rotating speed is less than or equal to the second set rotating speed, judging that the gas water heater meets the preset state, otherwise, if the current correction rotating speed is greater than the second set rotating speed, judging that the gas water heater at the moment does not meet the preset state, and the gas water heater cannot be subjected to combustion operation.
Further, in this embodiment, the current correction rotation speed is greater than the second set rotation speed, and the first condition is that the current correction rotation speed is not only greater than the second set rotation speed, but also greater than the first set rotation speed, and for this condition, it indicates that the rotation speed of the fan has exceeded the rotation speed threshold at this time, and in order to ensure the safety of the gas water heater, the gas valve is closed or an alarm is given.
The second condition is that the current correction rotating speed is greater than the second set rotating speed but less than the first set rotating speed, which is caused by the increase of the flue resistance, and for this condition, the present embodiment adopts a mode of setting a force value by adjusting the fan to increase the air volume of the fan until the gas water heater can satisfy the preset state, and then controls the combustion operation of the gas water heater after the gas water heater satisfies the preset state.
In the embodiment, when the second set rotating speed is greater than or equal to the current correction rotating speed, it is determined that the gas water heater meets a preset state; and when the first set rotating speed is less than the current correction rotating speed, or the second set rotating speed is less than the current correction rotating speed and the first set rotating speed is greater than or equal to the current correction rotating speed, determining that the gas water heater does not meet a preset state, accurately judging whether the gas water heater meets the preset state by combining the current correction rotating speed, the first set rotating speed and the second set rotating speed, and simultaneously ensuring the safety of a user in the process of using the gas water heater by closing a gas valve, giving an alarm and adjusting a fan set power value when the gas water heater does not meet the preset state.
Referring to fig. 7, fig. 7 is a flow chart illustrating a third embodiment of the control method of the gas water heater according to the present invention.
Based on the second embodiment, a third embodiment of the control method of a gas water heater according to the present invention is provided.
In this embodiment, after the step S40, the method further includes:
step S403: and when the second set rotating speed is less than the current correction rotating speed and the first set rotating speed is greater than or equal to the current correction rotating speed, adjusting the set output value of the fan until the gas water heater meets a preset state.
In specific implementation, aiming at the condition that the current correction rotating speed is greater than the second set rotating speed but less than the first set rotating speed, the set output value of the fan is adjusted in the embodiment, and the air volume of the fan is increased by adjusting the set output value of the fan, so that the gas water heater meets the preset state.
It should be noted that, in the present embodiment, the set output value of the fan, that is, the control output value of the fan, includes but is not limited to parameters such as voltage, current, and duty ratio input to the fan, and in the present embodiment, adjusting the set output value of the fan is to increase the control output value of the fan according to a certain proportion, for example, if the control output value corresponding to the set output value before adjustment is PR, and the adjusted amplitude value is dR, then the control output value corresponding to the adjusted set output value is PR + dR.
Further, as the control output force value increases, the current corrected rotation speed, the first set rotation speed, and the second set rotation speed of the corresponding fan also increase, in this embodiment, a new current corrected rotation speed corresponding to the adjusted setting force value, the adjusted first set rotation speed, and the adjusted second set rotation speed may be determined according to a preset mapping relationship, which is shown in fig. 8, where R1 is the first set rotation speed, and R2 is the second set rotation speed. As can be seen from fig. 8, the adjusted first set rotation speed is greater than the first set rotation speed, and the adjusted second set rotation speed is greater than the second set rotation speed, but the relationship between the adjusted first set rotation speed and the adjusted second set rotation speed is not changed, and it should be emphasized that, even if the current corrected rotation speed and the set rotation speed are simultaneously increased, the increasing speed of the set rotation speed corresponding to the output value is controlled to be faster than the increasing speed of the current corrected rotation speed in this embodiment, that is, when the current corrected rotation speed is greater than the second set rotation speed, by combining the different increasing speeds while adjusting the set output value, the new current corrected rotation speed is finally smaller than the adjusted second set rotation speed, so that the gas water heater satisfies the preset state.
In this embodiment, when the second set rotation speed is less than the current correction rotation speed and the first set rotation speed is greater than or equal to the current correction rotation speed, the setting force value of the fan is adjusted, and the adjusted setting force value is obtained; determining a new current correction rotating speed corresponding to the gas water heater, an adjusted first set rotating speed and an adjusted second set rotating speed according to the adjusted set output value; and continuously adjusting the set force value of the fan until the new current corrected rotating speed is less than or equal to the adjusted second set rotating speed, and when the gas water heater does not meet the preset state, adjusting the set force value of the fan to enable the gas water heater to meet the preset state, so that the safety of a user in using the gas water heater is improved.
In addition, an embodiment of the present invention further provides a storage medium, where a gas water heater control program is stored, and when being executed by a processor, the gas water heater control program implements the steps of the gas water heater control method described above.
Since the storage medium adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
Referring to fig. 9, fig. 9 is a block diagram showing the structure of the first embodiment of the gas water heater control device of the present invention.
As shown in fig. 9, a gas water heater control device according to an embodiment of the present invention includes:
the reading module 10 is configured to obtain a current rotation speed and a set output value of the fan when the fan is started.
In most of the conventional gas water heaters, the amount of combustion heat required for hot water generation is controlled by gas flow control. For the gas water heater with the blower, the corresponding blower rotating speed is matched to provide the corresponding air quantity so as to maintain the combustion operation under good conditions. However, due to differences in installation environment and state, for example: the problems of incomplete combustion, vibration combustion and the like are easily caused by factors such as poor ventilation environment, backward wind flowing of the smoke exhaust pipe and the like. The existing gas water heater can not be controlled and adjusted by the gas water heater to solve the problems of incomplete combustion, vibration combustion and the like, and the practicability and safety of the gas water heater are reduced.
In order to solve the above technical problem, in this embodiment, a control system is provided for adjusting a set force value of a fan of a gas water heater by detecting the set force value and a fan rotation speed of the fan, so as to ensure that a good combustion condition is ensured during a combustion operation of the gas water heater, so as to ensure safety of equipment and a user, and improve practicality and safety of the gas water heater, and specifically, the following method is implemented.
In the concrete implementation, in order to make the technical scheme related to the implementation mode of each control method in the invention clearer, the invention provides a gas water heater. Referring specifically to fig. 3, fig. 3 is a block diagram of the gas water heater system of the present invention. The gas water heater system in this embodiment 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.
Further, in this embodiment, a specific structural schematic diagram of the gas water heater is also provided, which is shown with reference to fig. 4.
As shown in fig. 4, the gas water heater in the present 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. Still include gas pipeline (not shown in the figure) among the gas heater, gas pipeline is used for carrying the gas to combustor 1, and the gas in this embodiment can be gas fuel such as natural gas, and fan 4 is used for carrying the air to combustor 1, and wherein, gas valve 5 sets up on gas pipeline for cut off, put through and adjust the gas in the gas pipeline. The combustor 1 is provided with a plurality of injection ports, the fan 4 and the gas pipeline convey air and gas into the combustor 1 through the injection ports, then the combustor 1 mixes the air and the gas and then injects the mixture into the combustion chamber 2 for combustion, and finally the mixture exchanges heat with the combustion chamber 2 through the heat exchanger 6 so as to heat water in the water pipe. The smoke exhaust pipe 3 is used for exhausting smoke exhausted by combustion in the combustion chamber 2 to the outside.
It should be noted that, when the gas water heater operates normally, the rotation speed of the fan is less than the set rotation speed, that is, the rotation speed threshold, and in this embodiment, whether to control the combustion operation of the gas water heater may be determined based on the rotation speed of the fan. Firstly, in the embodiment, after the start of the fan is detected, the current rotating speed of the fan and a set force value are obtained.
Further, in this embodiment, after the start of the fan is detected, the current rotation speed of the fan is obtained, but it should be emphasized that the start of the fan in this embodiment also needs to satisfy a certain condition.
In this embodiment, after the start of the gas water heater is detected, 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 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 water flow/unit time, and the set water outlet rate may be set accordingly according to actual needs, which is not limited in this embodiment.
The reading module 10 is further configured to obtain a set rotation speed corresponding to the set force value.
In a specific implementation, after the set output value is determined, the set output value in the embodiment corresponds to the control output value of the fan, a corresponding relationship exists between the control output value and the set rotating speed, and the set rotating speeds corresponding to different set output values of the fan can be determined according to the corresponding relationship.
And the correction module 20 is configured to correct the current rotating speed according to a preset correction coefficient to obtain a current corrected rotating speed.
In the specific implementation, due to factors such as installation environment and state difference, the fan and the whole system have difference, and therefore certain correction needs to be performed on the basis of referring to the set rotating speed to obtain the set corrected rotating speed. Specifically, in this embodiment, the current rotation speed may be corrected according to a preset correction coefficient.
Further, the preset correction coefficient in the present embodiment may be determined according to the standard rotation speed. Specifically, in this embodiment, a first standard rotation speed and a second standard rotation speed are obtained first, where the first standard rotation speed is a theoretical rotation speed of the gas water heater in a standard working environment, and the second standard rotation speed is an actual rotation speed of the gas water heater in an installation position and in the standard working environment, and the description is given with reference to fig. 5 in this embodiment. R0 shown in fig. 5 is a first standard rotation speed, rn is an actual rotation speed after the gas water heater is installed, and the preset correction coefficient is dn = Rn-R0.
And the judging module 30 is configured to judge whether the gas water heater meets a preset state according to the current correction rotating speed and the set rotating speed.
In a specific implementation, after the current correction rotating speed and the set rotating speed are obtained, in this embodiment, whether the gas water heater can perform the combustion operation is determined according to the current correction rotating speed and the set rotating speed, where the preset state is a state when the gas water heater satisfies the combustion operation and has a good combustion condition. Specifically, in this embodiment, whether the gas water heater satisfies the preset state or not can be determined according to the current rotation speed.
And the control module 40 is used for opening the gas valve when the gas water heater meets a preset state.
In concrete implementation, when the gas heater satisfies preset state, the gas heater at this moment can burn the operation to can guarantee good burning situation, under this condition, can open the gas valve in this embodiment, make the gas in the gas pipeline carry to the combustor in, thereby make the gas heater begin to burn the operation.
In the embodiment, when the fan is started, the current rotating speed and the set output value of the fan are obtained; acquiring a set rotating speed corresponding to the set force value; correcting the current rotating speed according to a preset correction coefficient to obtain the current corrected rotating speed; judging whether the gas water heater meets a preset state or not according to the current correction rotating speed and the set rotating speed; when the gas water heater meets the preset state, the gas valve is opened, whether the preset state is met by the gas water heater is judged by correcting the rotating speed and setting the rotating speed currently, after the preset state is determined to be met by the gas water heater, the gas valve is opened again, the gas water heater is controlled to operate, the water heater is ensured to have a good combustion condition in the combustion operation process, the situations of incomplete combustion and vibration combustion are avoided, and the practicability and the safety of the gas water heater are improved.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.
It should be noted that the above-described workflow is only illustrative and does not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them according to actual needs to implement the purpose of the solution of the present embodiment, and the present invention is not limited herein.
In addition, the technical details that are not elaborated in the present embodiment can be referred to the gas water heater control method provided by any embodiment of the present invention, and are not described herein again.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the present invention.
Claims (10)
1. A control method of a gas water heater is characterized in that the control method of the gas water heater is applied to the gas water heater, the gas water heater comprises a gas valve, a fan, a combustor and a gas pipeline, the gas pipeline is used for conveying gas to the combustor, the fan is used for conveying air to the combustor, and the gas valve is arranged on the gas pipeline;
the control method of the gas water heater comprises the following steps:
when the fan is started, acquiring the current rotating speed and the set output value of the fan;
acquiring a set rotating speed corresponding to the set force value;
correcting the current rotating speed according to a preset correction coefficient to obtain a current corrected rotating speed;
judging whether the gas water heater meets a preset state or not according to the current correction rotating speed and the set rotating speed; and
and when the gas water heater meets a preset state, the gas valve is opened.
2. The gas water heater control method according to claim 1, wherein the set rotation speed includes a first set rotation speed and a second set rotation speed, the second set rotation speed being less than the first set rotation speed;
the judging whether the gas water heater meets a preset state according to the current correction rotating speed and the set rotating speed comprises the following steps:
when the second set rotating speed is greater than or equal to the current correction rotating speed, determining that the gas water heater meets a preset state; and
and when the first set rotating speed is less than the current correction rotating speed, or the second set rotating speed is less than the current correction rotating speed and the first set rotating speed is greater than or equal to the current correction rotating speed, determining that the gas water heater does not meet the preset state.
3. The gas water heater control method according to claim 2, wherein after determining whether the gas water heater satisfies a preset condition according to the current correction rotation speed and the set rotation speed, the method further comprises:
and when the first set rotating speed is less than the current correction rotating speed, the gas valve and/or the output alarm prompt are/is given.
4. The gas water heater control method according to claim 3, wherein after determining whether the gas water heater satisfies a preset condition according to the current correction rotation speed and the set rotation speed, the method further comprises:
and when the second set rotating speed is less than the current correction rotating speed and the first set rotating speed is greater than or equal to the current correction rotating speed, adjusting the set output value of the fan until the gas water heater meets a preset state.
5. The gas water heater control method of claim 4, wherein said adjusting the set output value of the fan until the gas water heater satisfies a preset condition comprises:
adjusting the set force value of the fan, and acquiring the adjusted set force value;
determining a new current correction rotating speed corresponding to the gas water heater, an adjusted first set rotating speed and an adjusted second set rotating speed according to the adjusted set output value; and
and continuing to adjust the set force value of the fan until the adjusted second set rotating speed is greater than or equal to the new current correction rotating speed.
6. The method for controlling a gas water heater according to any one of claims 1 to 5, wherein before the step of correcting the current rotation speed according to a preset correction coefficient to obtain the current corrected rotation speed, the method further comprises:
acquiring a first standard rotating speed and a second standard rotating speed, wherein the first standard rotating speed is a theoretical rotating speed of the gas water heater in a standard working environment, and the second standard rotating speed is an actual rotating speed of the gas water heater in an installation position and in the standard working environment; and
and determining a preset correction coefficient according to the first standard rotating speed and the second standard rotating speed.
7. The gas water heater control method according to any one of claims 1 to 5, wherein before obtaining the current rotation speed and the set output value of the fan when the fan is started, the method further comprises:
acquiring the water outlet rate of the gas water heater when the gas water heater is started; and
and comparing the water outlet rate with a set water outlet rate, and starting the fan of the gas water heater when the set water outlet rate is smaller than the water outlet rate.
8. A gas water heater control device, characterized in that the gas water heater control device comprises:
the reading module is used for acquiring the current rotating speed and the set output value of the fan when the fan is started;
the reading module is further used for acquiring a set rotating speed corresponding to the set force value;
the correction module is used for correcting the current rotating speed according to a preset correction coefficient to obtain the current corrected rotating speed;
the judging module is used for judging whether the gas water heater meets a preset state or not according to the current correction rotating speed and the set rotating speed;
and the control module is used for opening the gas valve when the gas water heater meets a preset state.
9. A gas water heater, comprising: a memory, a processor, and a gas water heater control program stored on the memory and run on the processor, the gas water heater control program configured to implement the gas water heater control method of any one of claims 1 to 7.
10. A storage medium having stored thereon a gas water heater control program which, when executed by a processor, implements a gas water heater control method according to any one of claims 1 to 7.
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| CN202211727320.8A CN115808023A (en) | 2022-12-29 | 2022-12-29 | Gas water heater control method and device, gas water heater and storage medium |
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| CN202211727320.8A CN115808023A (en) | 2022-12-29 | 2022-12-29 | Gas water heater control method and device, gas water heater and storage medium |
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| CN115808023A true CN115808023A (en) | 2023-03-17 |
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