CN117663484A - Control method and device of gas water heater, gas water heater and storage medium - Google Patents
Control method and device of gas water heater, gas water heater and storage medium Download PDFInfo
- Publication number
- CN117663484A CN117663484A CN202211031400.XA CN202211031400A CN117663484A CN 117663484 A CN117663484 A CN 117663484A CN 202211031400 A CN202211031400 A CN 202211031400A CN 117663484 A CN117663484 A CN 117663484A
- Authority
- CN
- China
- Prior art keywords
- water heater
- value
- pressure range
- gas water
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 145
- 238000000034 method Methods 0.000 title claims abstract description 71
- 238000003860 storage Methods 0.000 title claims abstract description 14
- 239000000779 smoke Substances 0.000 claims abstract description 46
- 238000013461 design Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 abstract description 48
- 239000007789 gas Substances 0.000 description 157
- 238000010586 diagram Methods 0.000 description 17
- 230000001276 controlling effect Effects 0.000 description 15
- 238000011217 control strategy Methods 0.000 description 11
- 238000009423 ventilation Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 239000002737 fuel gas Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/242—Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/345—Control of fans, e.g. on-off control
- F24H15/35—Control of the speed of fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/36—Control of heat-generating means in heaters of burners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a control method and device of a gas water heater, the gas water heater and a storage medium, belonging to the technical field of household appliances, wherein the method comprises the following steps: acquiring a current pressure value between the fan and the smoke exhaust pipe; determining a target pressure range according to the current pressure value; and controlling the operating state of the combustor according to the target pressure range. The invention controls the running state of the burner according to the current pressure value to ensure that the water heater keeps good combustion condition in the combustion running process, thereby ensuring the safety of equipment and users and improving the safety and usability.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a control method and device of a gas water heater, the gas water heater and a storage medium.
Background
The current gas water heater is operated, and the gas flow is controlled to supply the gas combustion heat required for generating hot water. For the gas water heater with the blower, the corresponding blower rotating speed is matched to provide corresponding air quantity so as to maintain to execute combustion operation under good condition. However, the installation environment is relatively different, for example: poor ventilation environment, different gas heat values, reverse ventilation of the smoke exhaust pipe and the like, and the problems of incomplete combustion, vibration combustion, high smoke emission and the like are easily caused.
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 problem of how to ensure that the gas water heater maintains a good combustion state in the combustion operation process.
In order to achieve the above object, the present invention provides a gas water heater control method, which is applied to a gas water heater, wherein the gas water heater comprises a burner, a fan and a smoke exhaust pipe, the fan is used for conveying air to the burner, and the smoke exhaust pipe is used for exhausting smoke generated by the burner;
the control method of the gas water heater comprises the following steps:
acquiring a current pressure value between the fan and the smoke exhaust pipe;
determining a target pressure range according to the current pressure value;
and controlling the operating state of the combustor according to the target pressure range.
Optionally, the determining the target pressure range according to the current pressure value includes:
when the current pressure value is smaller than or equal to a first preset value, taking the first pressure range as a target pressure range;
when the current pressure value is larger than a first preset value and smaller than or equal to a second preset value, a second pressure range is used as a target pressure range, the second preset value is larger than the first preset value, and the minimum value of the second pressure range is larger than the maximum value of the first pressure range;
and when the current pressure value is larger than a second preset value, taking a third pressure range as a target pressure range, wherein the minimum value of the third pressure range is larger than the maximum value of the second pressure range.
Optionally, before taking the first pressure range as the target pressure range when the current pressure value is less than or equal to a first preset value, the method further includes:
and respectively correcting the first initial preset value and the second initial preset value according to the preset pressure difference value to obtain the first preset value and the second preset value.
Optionally, before the correcting the first initial preset value, the second initial preset value and the third initial preset value according to the preset pressure difference value, the method further includes:
controlling the operation of the burner according to preset gas control parameters;
in the running process of the burner, acquiring a pressure value to be selected between the fan and the smoke exhaust pipe;
and determining a preset pressure difference value according to the original design pressure value corresponding to the gas water heater and the pressure value to be selected.
Optionally, the controlling the operating state of the burner according to the target pressure range includes:
and when the target pressure range is the first pressure range, controlling the combustor to maintain the current running state.
Optionally, the controlling the operating state of the burner according to the target pressure range includes:
when the target pressure range is a second pressure range, acquiring a current gas control parameter corresponding to the burner;
determining a target gas control parameter according to the current gas control parameter and a preset reduction value;
and adjusting the running state of the burner according to the target gas control parameter.
Optionally, the controlling the operating state of the burner according to the target pressure range includes:
and controlling the burner to stop operating when the target pressure range is a third pressure range.
In addition, in order to achieve the above object, the present invention also provides a gas water heater control device, including:
and the pressure detection module is used for acquiring the current pressure value between the fan and the smoke exhaust pipe.
And the pressure range module is used for determining a target pressure range according to the current pressure value.
And the state adjustment module is used for controlling the running state of the burner according to the target pressure range.
In addition, in order to achieve the above object, the present invention also provides a gas water heater, including: the gas water heater control system comprises a memory, a processor and a gas water heater control program which is stored in the memory and can run on the processor, wherein the gas water heater control program realizes the gas water heater control method when being executed by the processor.
In addition, in order to achieve the above object, the present invention also proposes a storage medium having stored thereon a gas water heater control program which, when executed by a processor, implements the gas water heater control method as described above.
In the control method of the gas water heater, the current pressure value between the fan and the smoke exhaust pipe is obtained; determining a target pressure range according to the current pressure value; and controlling the operating state of the combustor according to the target pressure range. The invention controls the running state of the burner according to the current pressure value to ensure that the water heater keeps good combustion condition in the combustion running process, thereby ensuring the safety of equipment and users and improving the safety and usability.
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 a control method of a gas water heater according to the present invention;
FIG. 3 is a block diagram of a gas water heater system according to an embodiment of the control method of the gas water heater of the present invention;
FIG. 4 is a schematic 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 showing a correspondence relationship between a gas control output value and a pressure value according to an embodiment of a gas water heater control method of the present invention;
FIG. 6 is a schematic diagram illustrating pressure range division according to an embodiment of a method for controlling a gas water heater of the present invention;
FIG. 7 is a schematic flow chart of a second embodiment of a control method of a gas water heater according to the present invention;
FIG. 8 is a flowchart of a correction control method according to an embodiment of the control method of the gas water heater of the present invention;
FIG. 9 is a schematic diagram of a pressure relationship of an embodiment of a control method of a gas water heater according to the present invention;
FIG. 10 is a schematic diagram illustrating a sample comparison of an embodiment of a control method of a gas water heater according to the present invention;
FIG. 11 is a flow chart of a third embodiment of a control method of a gas water heater according to the present invention;
FIG. 12 is a schematic diagram of functional modules of a control device for a gas water heater according to a first embodiment of the present invention.
Description of the reference numerals
| 1 | Burner with a burner body |
| 2 | Combustion chamber |
| 3 | Smoke exhaust pipe |
| 4 | Blower fan |
| 5 | Gas valve |
| 6 | Heat exchanger |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a gas water heater in a hardware operation 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 (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as keys, 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., wi-Fi interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the apparatus structure shown in fig. 1 is not limiting and may include more or fewer components than shown, or certain components may be combined, or a different arrangement of components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and a gas water heater control program may be included in the memory 1005 as one type of storage medium.
In the gas water heater shown in fig. 1, the network interface 1004 is mainly used for connecting to an external network and performing data communication with other network devices; the user interface 1003 is mainly used for connecting user equipment and communicating data with the user equipment; the device of the present invention invokes 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.
Based on the hardware structure, the embodiment of the control method of the gas water heater is provided.
Referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of a control method of a gas water heater according to the present invention.
In a first embodiment, the gas water heater control method is applied to a gas water heater, the gas water heater comprises a combustor, a fan and a smoke exhaust pipe, the fan is used for conveying air to the combustor, and the smoke exhaust pipe is used for exhausting smoke generated by the combustor;
the control method of the gas water heater comprises the following steps:
step S10, obtaining a current pressure value between the fan and the smoke exhaust pipe.
It should be noted that, the execution body of the embodiment may be a gas water heater control device, and the gas water heater control device may be a device having functions of data processing, data communication, program running, and the like. For example, the gas water heater control device may be an embedded control unit, a tablet, a computer, a server, or other computer devices with the same or similar functions, which is not limited in this embodiment. For convenience of explanation, in the present embodiment, a gas water heater control apparatus is described as an example.
It should be noted that, at present, gas water heater has become the main hot water supply appliance in market, however, because of the installation environment difference, the difference of the gas supply pressure and the heat value of the gas is relatively large, for example: poor ventilation environment, different gas heat values, reverse air flow of the smoke exhaust pipe and the like, and the problems of incomplete combustion, vibration combustion and the like are easily caused. The current gas water heater is operated, and the gas flow is controlled to supply the gas combustion heat required for generating hot water. For the gas water heater with the blower, the corresponding blower rotating speed is matched to provide corresponding air quantity so as to maintain to execute combustion operation under good condition. However, the installation environment is relatively different, for example: poor ventilation environment, different gas heat values, reverse ventilation of the smoke exhaust pipe and the like, and the problems of incomplete combustion, vibration combustion, high smoke emission and the like are easily caused.
In order to solve the above technical problems, the present solution provides a control system for adjusting a gas control output value by detecting a pressure parameter value h (hereinafter referred to as pressure value h) of a passage of a combustion system of a gas water heater, so as to ensure good combustion conditions of the water heater during combustion operation, ensure safety of equipment and users, and improve safety and usability.
In a specific implementation, in order to make the technical scheme related to the implementation mode of each control method in the invention clearer, the invention firstly 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 10, a gas control unit 20, a water temperature detection unit 30, a water flow rate detection unit 40, and a pressure detection unit 50. The pressure detecting unit 50 may be installed between the fan and the smoke exhaust pipe of the water heater, or may be installed at other positions of the water heater, which is not limited in this embodiment, and in this embodiment, the optimal pressure detecting position of the pressure detecting unit 50 is between the fan outlet and the smoke exhaust pipe outlet of the water heater.
Further, in this embodiment, a specific structural schematic diagram of the gas water heater is also provided, and is shown in 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. The gas water heater further includes a gas pipeline (not shown in the figure), and the gas pipeline is used for delivering gas to the combustor 1, and the gas in the embodiment may include, but is not limited to, gas fuel such as natural gas, and the like, which is not limited in the embodiment. The fan 4 is used for delivering air to the burner 1, wherein a gas valve 5 is arranged on the gas line for cutting off, switching on and regulating the gas in the gas line. The burner 1 is provided with a plurality of injection ports through which the fan 4 and the gas line feed air and gas into the burner 1, and then the burner 1 mixes the air and gas and then injects the mixture into the combustion chamber 2 for combustion, and finally exchanges heat with the combustion chamber 2 through the heat exchanger 6 to heat water in the water pipe. The smoke exhaust pipe 3 is used for exhausting smoke generated by combustion in the burner 1 and the combustion chamber 2 to the outside.
When the water heater is operated by burning fuel gas, the current pressure value h between the fan and the smoke exhaust pipe can be detected by the pressure detecting unit 50. The fan in this embodiment may include, but is not limited to, a blower, which is not limited to this embodiment.
And step S20, determining a target pressure range according to the current pressure value.
It should be noted that, the gas control parameter in this embodiment may be a gas control output value, and the gas control output value may include, but is not limited to, parameters such as current, voltage, duty cycle, and the like, which is not limited in this embodiment. As shown in fig. 5, fig. 5 is a schematic diagram of the correspondence between the gas control output value and the pressure value, and the correspondence between the gas control output value PV and the pressure value h may be implanted in the system control unit 10.
It should be noted that, as shown in fig. 6, fig. 6 is a schematic view of pressure range division. Three pressure ranges, namely, a first pressure range H1, a second pressure range H2 and a third pressure range H3, may be preset, and the present embodiment is not limited thereto. Wherein the minimum value of the second pressure range H2 is greater than the maximum value of the first pressure range H1, and the minimum value of the third pressure range H3 is greater than the maximum value of the second pressure range H2.
It can be appreciated that the original design pressure value h0, the first preset value h1, and the second preset value h2 may be preset, where the first preset value h1 is greater than the original design pressure value h0, and the second preset value h2 is greater than the first preset value h1.
It will be appreciated that after the current pressure value is determined, it may be determined which pressure range described above the current pressure value falls within to determine the target pressure range.
And step S30, controlling the operation state of the burner according to the target pressure range.
It should be noted that, a corresponding control policy may be set in advance for each pressure range, for example, a corresponding first control policy may be set for the first pressure range H1, a corresponding second control policy may be set for the second pressure range H2, and a corresponding third control policy may be set for the third pressure range H3.
It will be appreciated that the first control strategy may be to control the burner to maintain a current operating state, the second control strategy may be to adjust the operating state of the burner, and the third control strategy may be to control the burner to cease operation and/or alarm, which is not limited in this embodiment.
In this embodiment, a current pressure value between the fan and the smoke exhaust pipe is obtained; determining a target pressure range according to the current pressure value; and controlling the operating state of the combustor according to the target pressure range. According to the scheme, the running state of the burner is controlled according to the current pressure value, so that the water heater can maintain good combustion conditions in the combustion operation process, the safety of equipment and users is ensured, and the safety and usability are improved.
In an embodiment, as shown in fig. 7, a second embodiment of the control method for a gas water heater according to the present invention is provided based on the first embodiment, and the step S20 includes:
step S201, when the current pressure value is less than or equal to a first preset value, the first pressure range is taken as a target pressure range.
It should be understood that, in order to accurately determine the target pressure range, the current pressure value h may be compared with the first preset value h1 and the second preset value h2, respectively, so as to determine the pressure range in which the current pressure value h is located, and further, the pressure range in which the current pressure value h is located is taken as the target pressure range.
It will be appreciated that if H0 < h.ltoreq.h1, then the first pressure range H1 is taken as the target pressure range; if H1 is more than H and less than or equal to H2, taking the second pressure range H2 as a target pressure range; if H > H2, the third pressure range H3 is taken as the target pressure range.
In the actual use process, since the pressure detecting unit, the blower unit and the complete machine system have reasonable differences in performance during mass production, the accuracy of the control method is affected, and therefore, in order to improve the accuracy of the control method, a difference correction method is further proposed below.
It should be understood that, as shown in fig. 8, fig. 8 is a flowchart of a correction control method, PV is a gas control output value, dP is a decrement value of gas output adjustment, h is a current pressure value actually detected, h1 is a first preset value, and h2 is a second preset value.
It can be understood that the first initial preset value and the second initial preset value may be preset, and then the first initial preset value is corrected according to the preset pressure difference dn to obtain a first preset value h1, and the second initial preset value is corrected according to the preset pressure difference dn to obtain a second preset value h2. Meanwhile, the original design pressure value can be corrected according to the preset pressure difference dn to obtain a corrected original design pressure value h0, which is not limited in this embodiment.
Further, in order to accurately determine the preset pressure difference value so as to achieve a better correction effect, when the water heater is installed, the operation of burning fuel gas of the water heater can be controlled according to preset fuel gas control parameters, the operation of a fan is controlled, a pressure value to be selected between the fan and the smoke exhaust pipe is obtained in the operation process, and the preset pressure difference value is determined according to the original design pressure value corresponding to the fuel gas water heater and the pressure value to be selected. The preset gas control parameters may be set according to actual situations, which is not limited in this embodiment.
It should be noted that, as shown in fig. 9 and fig. 10, fig. 9 is a schematic pressure relationship diagram, fig. 10 is a schematic sample comparison diagram, PV is a gas control output value, h0 is an original design pressure value, hn is an nth water heater pressure value, and dn is a preset pressure difference.
It should be appreciated that the system control unit 10 may store a correspondence of the hot water yield, the baseline gas control output value PV, and the original design pressure value h 0. In the set reference state, the system control unit 10 sets an automatic sampling comparison procedure to detect the corresponding relationship between the gas control output value PV and the individual pressure value hn.
It will be appreciated that the preset pressure difference dn, i.e. dn=hn-h 0, may be determined according to the above-mentioned gas control output value PV and the difference between the individual pressure value hn and the original design pressure value h0, which is not limited in this embodiment.
In a specific implementation, the first initial preset value is corrected according to the preset pressure difference dn to obtain a first preset value h1, which is specifically: h1 =h1+dn; correcting the second initial preset value according to the preset pressure difference dn to obtain a second preset value h2, specifically: h2 =h2+dn; correcting the original design pressure value according to the preset pressure difference dn to obtain a corrected original design pressure value h0, wherein the corrected original design pressure value h0 is specifically: h0 =h0+dn.
In this embodiment, the first initial preset value and the second initial preset value are corrected according to the preset pressure difference value respectively to obtain the first preset value and the second preset value, and then the target pressure range is determined according to the current pressure value and the first preset value and the second preset value, so that errors can be avoided, the target pressure range can be determined more accurately, and an accurate control effect can be achieved.
In an embodiment, as shown in fig. 11, a third embodiment of the gas water heater control method according to the present invention is provided based on the first embodiment or the second embodiment, and in this embodiment, the description is given based on the first embodiment, and the step S30 includes:
step S301, when the target pressure range is the first pressure range, controlling the burner to maintain the current operation state.
It should be appreciated that when the target pressure range is the first pressure range H1, indicating that the water heater is operating in a good condition for combustion, a first control strategy may be implemented, the water heater may be controlled to continue operating according to the first control strategy, and the burner may be controlled to maintain a current operating condition.
It should be appreciated that when the target pressure range is the second pressure range H2, the second control strategy may be executed, the current gas control parameter PV corresponding to the burner is obtained, and the target gas control parameter is determined according to the current gas control parameter PV and the preset reduction value dP, that is, the target gas control parameter=pv-dP. The combustion operation of the water heater is maintained in a good state by adjusting the operation state of the burner. The preset reduction value dP may be a preset value preset according to actual situations, which is not limited in this embodiment.
It should be appreciated that when the target pressure range is the third pressure range H3, which indicates that the pressure allowable threshold is exceeded, a third control strategy may be implemented to deactivate the water heater and/or alarm, wherein the water heater may be deactivated by controlling the fan and/or burner to deactivate, which is not limited in this embodiment.
In this embodiment, when the target pressure range is a different pressure range, different control strategies are executed to adjust the operation state of the burner, so that it is possible to ensure that the water heater maintains a good combustion condition during the combustion operation.
In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium is stored with a gas water heater control program, and the gas water heater control program realizes the steps of the gas water heater control method when being executed by a processor.
Because the storage medium adopts all the technical schemes of all the embodiments, the storage medium has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted here.
In addition, referring to fig. 12, an embodiment of the present invention further provides a gas water heater control device, where the gas water heater control device includes:
the pressure detection module 100 is used for acquiring the current pressure value between the fan and the smoke exhaust pipe.
It should be noted that, at present, gas water heater has become the main hot water supply appliance in market, however, because of the installation environment difference, the difference of the gas supply pressure and the heat value of the gas is relatively large, for example: poor ventilation environment, different gas heat values, reverse air flow of the smoke exhaust pipe and the like, and the problems of incomplete combustion, vibration combustion and the like are easily caused. The current gas water heater is operated, and the gas flow is controlled to supply the gas combustion heat required for generating hot water. For the gas water heater with the blower, the corresponding blower rotating speed is matched to provide corresponding air quantity so as to maintain to execute combustion operation under good condition. However, the installation environment is relatively different, for example: poor ventilation environment, different gas heat values, reverse ventilation of the smoke exhaust pipe and the like, and the problems of incomplete combustion, vibration combustion, high smoke emission and the like are easily caused.
In order to solve the above technical problems, the present solution provides a control system for adjusting a gas control output value by detecting a pressure parameter value h (hereinafter referred to as pressure value h) of a passage of a combustion system of a gas water heater, so as to ensure good combustion conditions of the water heater during combustion operation, ensure safety of equipment and users, and improve safety and usability.
In a specific implementation, in order to make the technical scheme related to the implementation mode of each control method in the invention clearer, the invention firstly 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 10, a gas control unit 20, a water temperature detection unit 30, a water flow rate detection unit 40, and a pressure detection unit 50. The pressure detecting unit 50 may be installed between the fan and the smoke exhaust pipe of the water heater, or may be installed at other positions of the water heater, which is not limited in this embodiment, and in this embodiment, the optimal pressure detecting position of the pressure detecting unit 50 is between the fan outlet and the smoke exhaust pipe outlet of the water heater.
Further, in this embodiment, a specific structural schematic diagram of the gas water heater is also provided, and is shown in 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. The gas water heater further includes a gas pipeline (not shown in the figure), and the gas pipeline is used for delivering gas to the combustor 1, and the gas in the embodiment may include, but is not limited to, gas fuel such as natural gas, and the like, which is not limited in the embodiment. The fan 4 is used for delivering air to the burner 1, wherein a gas valve 5 is arranged on the gas line for cutting off, switching on and regulating the gas in the gas line. The burner 1 is provided with a plurality of injection ports through which the fan 4 and the gas line feed air and gas into the burner 1, and then the burner 1 mixes the air and gas and ignites the same, and then the ignited gas is injected into the combustion chamber 2 to be combusted, and finally heat exchange is performed with the combustion chamber 2 through the heat exchanger 6 to heat water in the water pipe. The smoke exhaust pipe 3 is used for exhausting smoke generated by combustion in the burner 1 and the combustion chamber 2 to the outside.
When the water heater is operated by burning fuel gas, the current pressure value h between the fan and the smoke exhaust pipe can be detected by the pressure detecting unit 50. The fan in this embodiment may include, but is not limited to, a blower, which is not limited to this embodiment.
A pressure range module 200 for determining a target pressure range from the current pressure value.
It should be noted that, the gas control parameter in this embodiment may be a gas control output value, and the gas control output value may include, but is not limited to, parameters such as current, voltage, duty cycle, and the like, which is not limited in this embodiment. As shown in fig. 5, fig. 5 is a schematic diagram of the correspondence between the gas control output value and the pressure value, and the correspondence between the gas control output value PV and the pressure value h may be implanted in the system control unit 10.
It should be noted that, as shown in fig. 6, fig. 6 is a schematic view of pressure range division. Three pressure ranges, namely, a first pressure range H1, a second pressure range H2 and a third pressure range H3, may be preset, and the present embodiment is not limited thereto. Wherein the minimum value of the second pressure range H2 is greater than the maximum value of the first pressure range H1, and the minimum value of the third pressure range H3 is greater than the maximum value of the second pressure range H2.
It can be appreciated that the original design pressure value h0, the first preset value h1, and the second preset value h2 may be preset, where the first preset value h1 is greater than the original design pressure value h0, and the second preset value h2 is greater than the first preset value h1.
It will be appreciated that after the current pressure value is determined, it may be determined which pressure range described above the current pressure value falls within to determine the target pressure range.
The state adjustment module 300 is configured to control an operating state of the combustor according to the target pressure range.
It should be noted that, a corresponding control policy may be set in advance for each pressure range, for example, a corresponding first control policy may be set for the first pressure range H1, a corresponding second control policy may be set for the second pressure range H2, and a corresponding third control policy may be set for the third pressure range H3.
It will be appreciated that the first control strategy may be to control the burner to maintain a current operating state, the second control strategy may be to adjust the operating state of the burner, and the third control strategy may be to control the burner to cease operation and/or alarm, which is not limited in this embodiment.
In this embodiment, a current pressure value between the fan and the smoke exhaust pipe is obtained; determining a target pressure range according to the current pressure value; and controlling the operating state of the combustor according to the target pressure range. According to the scheme, the running state of the burner is controlled according to the current pressure value, so that the water heater can maintain good combustion conditions in the combustion operation process, the safety of equipment and users is ensured, and the safety and usability are improved.
Other embodiments or specific implementation methods of the gas water heater control device of the present invention may refer to the above method embodiments, and are not described herein.
It should 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 apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in an estimator readable storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising instructions for causing a smart device (which may be a mobile phone, estimator, gas water heater, or network gas water heater, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
1. The control method of the 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 combustor, a fan and a smoke exhaust pipe, the fan is used for conveying air to the combustor, and the smoke exhaust pipe is used for exhausting smoke generated by the combustor;
the control method of the gas water heater comprises the following steps:
acquiring a current pressure value between the fan and the smoke exhaust pipe;
determining a target pressure range according to the current pressure value; and
and controlling the operating state of the combustor according to the target pressure range.
2. The gas water heater control method as recited in claim 1, wherein said determining a target pressure range from said current pressure value comprises:
when the current pressure value is smaller than or equal to a first preset value, taking the first pressure range as a target pressure range;
when the current pressure value is larger than a first preset value and smaller than or equal to a second preset value, a second pressure range is used as a target pressure range, the second preset value is larger than the first preset value, and the minimum value of the second pressure range is larger than the maximum value of the first pressure range; and
and when the current pressure value is larger than a second preset value, taking a third pressure range as a target pressure range, wherein the minimum value of the third pressure range is larger than the maximum value of the second pressure range.
3. The gas water heater control method as set forth in claim 2, wherein when the current pressure value is equal to or less than a first preset value, before taking the first pressure range as the target pressure range, further comprising:
and respectively correcting the first initial preset value and the second initial preset value according to the preset pressure difference value to obtain the first preset value and the second preset value.
4. The gas water heater control method as recited in claim 3, wherein before the correcting the first initial preset value, the second initial preset value, and the third initial preset value according to the preset pressure difference value, respectively, the method further comprises:
controlling the operation of the burner according to preset gas control parameters;
in the running process of the burner, acquiring a pressure value to be selected between the fan and the smoke exhaust pipe; and
and determining a preset pressure difference value according to the original design pressure value corresponding to the gas water heater and the pressure value to be selected.
5. The gas water heater control method according to any one of claims 1 to 4, wherein the controlling the operating state of the burner according to the target pressure range includes:
and when the target pressure range is the first pressure range, controlling the combustor to maintain the current running state.
6. The gas water heater control method according to any one of claims 1 to 4, wherein the controlling the operating state of the burner according to the target pressure range includes:
when the target pressure range is a second pressure range, acquiring a current gas control parameter corresponding to the burner;
determining a target gas control parameter according to the current gas control parameter and a preset reduction value; and
and adjusting the running state of the burner according to the target gas control parameter.
7. The gas water heater control method according to any one of claims 1 to 4, wherein the controlling the operating state of the burner according to the target pressure range includes:
and controlling the burner to stop operating when the target pressure range is a third pressure range.
8. A gas water heater control device, characterized in that the gas water heater control device comprises:
the pressure detection module is used for acquiring the current pressure value between the fan and the smoke exhaust pipe;
the pressure range module is used for determining a target pressure range according to the current pressure value;
and the state adjustment module is used for controlling the running state of the burner according to the target pressure range.
9. The gas water heater is characterized by comprising a combustor, a fan and a smoke exhaust pipe, wherein the fan is used for conveying air to the combustor, and the smoke exhaust pipe is used for exhausting smoke generated by the combustor; the gas water heater includes: a memory, a processor and a gas water heater control program stored on the memory and operable on the processor, which when executed by the processor implements the gas water heater control method as claimed in 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 the gas water heater control method of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211031400.XA CN117663484A (en) | 2022-08-26 | 2022-08-26 | Control method and device of gas water heater, gas water heater and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211031400.XA CN117663484A (en) | 2022-08-26 | 2022-08-26 | Control method and device of gas water heater, gas water heater and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117663484A true CN117663484A (en) | 2024-03-08 |
Family
ID=90079404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211031400.XA Pending CN117663484A (en) | 2022-08-26 | 2022-08-26 | Control method and device of gas water heater, gas water heater and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117663484A (en) |
-
2022
- 2022-08-26 CN CN202211031400.XA patent/CN117663484A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115200227B (en) | Control method and device of gas water heater, gas water heater and storage medium | |
| RU2705326C1 (en) | Combustion chamber of a gas turbine, a gas turbine and a method of controlling a combustion chamber of a gas turbine | |
| CN110953728A (en) | Constant temperature control method of gas water heater | |
| CN111059567B (en) | Combustion control method for reducing minimum heat load of gas water heating device | |
| CN111578306A (en) | Self-adaptive control method and device for wall-mounted gas boiler and wall-mounted gas boiler system | |
| CN111397205A (en) | Gas furnace control method and device and computer storage medium | |
| CN111380228B (en) | Low-air-pressure identification control method of gas water heater | |
| WO2024139094A1 (en) | Gas water heater control method and apparatus, gas water heater, and storage medium | |
| CN106403300B (en) | Gas water heater and safety control system and method thereof | |
| CN115808023A (en) | Gas water heater control method and device, gas water heater and storage medium | |
| CN115289691A (en) | Combustion control method and device for gas water heater, gas water heater and storage medium | |
| WO2022247797A1 (en) | Refrigerant leakage detection method and apparatus, and air conditioner and storage medium | |
| EP3510329A1 (en) | Boiler integrated control with non-linear outdoor reset methodology | |
| CN117663484A (en) | Control method and device of gas water heater, gas water heater and storage medium | |
| CN114322322A (en) | Gas water heater and control method, device and storage medium thereof | |
| KR101018775B1 (en) | Temperature control Method of heating water in Boiler | |
| US10775078B2 (en) | Gas water heater and safety control method and system therefor | |
| CN112682947A (en) | Gas water heating equipment and disturbance compensation control method and readable storage medium thereof | |
| KR20210133449A (en) | Heating water temperature compensation method of boiler | |
| CN109915851B (en) | Low-pressure combustion control method and device for gas appliance, storage medium and gas appliance | |
| CN114608203B (en) | Exhaust gas recirculation control method of water heater, water heater and storage medium | |
| CN207831701U (en) | Gas heater | |
| CN114322323B (en) | Control method of gas water heater, gas water heater and storage medium | |
| CN115789961A (en) | Control method and device of gas water heater, gas water heater and storage medium | |
| CN115978807A (en) | Gas water heater control method and device, gas water heater and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |