CN114811958A - Wall-mounted furnace control method, device and equipment and computer readable storage medium - Google Patents
Wall-mounted furnace control method, device and equipment and computer readable storage medium Download PDFInfo
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- CN114811958A CN114811958A CN202210152893.6A CN202210152893A CN114811958A CN 114811958 A CN114811958 A CN 114811958A CN 202210152893 A CN202210152893 A CN 202210152893A CN 114811958 A CN114811958 A CN 114811958A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000007789 gas Substances 0.000 claims description 37
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 5
- 239000003546 flue gas Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 13
- 238000013507 mapping Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 238000012886 linear function Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000010191 image analysis Methods 0.000 description 2
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- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J11/00—Devices for conducting smoke or fumes, e.g. flues
Abstract
The invention belongs to the technical field of water heaters, and discloses a wall-mounted boiler control method, device and equipment and a computer readable storage medium, wherein the method comprises the following steps: after ignition, when it is determined that the wall-hanging stove is clogged, performing the following adjustment steps: determining a target current value of a gas proportional valve according to the current actual wind pressure of a fan, wherein any proportional valve current of the gas proportional valve corresponds to a protection wind pressure and an operation wind pressure, and the protection wind pressure corresponding to the target current value is lower than the current actual wind pressure; and adjusting the proportional valve current of the gas proportional valve to the target current value. When the blockage occurs, the target current value of the gas proportional valve is determined according to the actual wind pressure of the fan, so that the adjusted protective wind pressure is smaller than the actual wind pressure when the blockage occurs, the wall-mounted furnace is prevented from being forcibly shut down, different working conditions can be adapted, and the wind resistance of the wall-mounted furnace is improved.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a wall-mounted boiler control method, device and equipment and a computer readable storage medium.
Background
Only be equipped with a wind pressure opening value and a wind pressure closing value in the current hanging stove, there is fixed difference between wind pressure opening value and the wind pressure closing value, the wind speed of the fan in the hanging stove is invariable simultaneously, consequently the amount of wind of hanging stove can't change along with complete machine operating mode, if the hanging stove takes place to block up, in case the proportional valve electric current of gas flow valve reduces, when actual wind pressure is less than the wind pressure closing value, just lead to the hanging stove to shut down by force, make the anti-wind ability of hanging stove weaker.
Disclosure of Invention
The invention aims to provide a wall-mounted boiler control method, device and equipment and a computer readable storage medium, so as to solve the problems that the existing wall-mounted boiler is weak in wind resistance and easy to shut down.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, a method for controlling a wall-hanging stove, when it is determined that the wall-hanging stove is clogged after ignition, performs the following adjustment steps:
determining a target current value of a gas proportional valve according to the current actual wind pressure of a fan, wherein any proportional valve current of the gas proportional valve corresponds to a protection wind pressure and an operation wind pressure, and the protection wind pressure corresponding to the target current value is lower than the current actual wind pressure;
and adjusting the proportional valve current of the gas proportional valve to the target current value.
In an embodiment, after ignition, the current actual wind pressure of a fan is detected in real time, and when the current actual wind pressure is smaller than the protection wind pressure corresponding to the current proportional valve current and the fan operates under the maximum voltage, it is determined that the wall-hanging furnace is blocked.
In one embodiment, after ignition, the current actual wind pressure of the fan is detected in real time, the current running wind pressure corresponding to the current proportional valve current is obtained, and when the current actual wind pressure is inconsistent with the current running wind pressure, the working voltage of the fan is adjusted, so that the adjusted actual wind pressure is the same as the running wind pressure.
In an embodiment, when the proportional valve current is within a preset current range, the relationship between the proportional valve current and the protection wind pressure is as follows:
Y＝m · X+a；
the relationship between the proportional valve current and the operation wind pressure is as follows:
Z＝n · X+b；
wherein X represents proportional valve current, Y represents protection wind pressure, Z represents operation wind pressure, and a, b, m and n all represent coefficients.
In one embodiment, m ≠ n, and a ≠ b, among the coefficients.
In one embodiment, the igniting comprises the steps of:
responding to a starting operation made by a user, and adjusting the working voltage of the fan to the maximum working voltage;
and if the difference value between the actual wind pressure and the maximum protection wind pressure of the fan at the maximum working voltage is larger than a preset difference value, igniting.
In one embodiment, after the proportional valve current of the gas proportional valve is adjusted to the target current value, whether the flue gas meets a preset requirement is judged, if yes, the wall-mounted furnace is kept running in the current state, and if not, a fault is reported and the wall-mounted furnace is shut down.
In a second aspect, a control device for a wall-hanging stove includes:
the target current value determining module is used for determining a target current value of a gas proportional valve according to the current actual wind pressure of a fan, a protection wind pressure and an operation wind pressure correspond to any proportional valve current of the gas proportional valve, and the protection wind pressure corresponding to the target current value is lower than the current actual wind pressure; and a proportional valve current adjustment module for adjusting the proportional valve current to the target current value.
In a third aspect, an apparatus, comprises:
one or more processors;
storage means for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors implement the method for controlling the wall-hanging stove as described above.
In a fourth aspect, a computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the method of controlling a wall-hanging stove as described above.
The invention has the beneficial effects that:
according to the control method for the wall-mounted boiler, when the wall-mounted boiler is blocked, the target current value of the gas proportional valve is determined according to the actual wind pressure of the fan, so that the adjusted protective wind pressure is smaller than the actual wind pressure when the wall-mounted boiler is blocked, the wall-mounted boiler is prevented from being forcibly shut down, the wall-mounted boiler can adapt to different working conditions, and the wind resistance of the wall-mounted boiler is improved.
For a control device of the wall-mounted furnace, when blockage occurs, the target current value of the gas proportional valve is determined according to the actual wind pressure of the fan, so that the adjusted protection wind pressure is smaller than the actual wind pressure when the blockage occurs, the wall-mounted furnace is prevented from being forcibly shut down, different working conditions can be adapted, and the wind resistance of the wall-mounted furnace is improved.
For equipment, when the equipment is blocked, the target current value of the gas proportional valve is determined according to the actual wind pressure of the fan, so that the adjusted protective wind pressure is smaller than the actual wind pressure when the equipment is blocked, the wall-mounted furnace is prevented from being forcibly shut down, different working conditions can be adapted, and the wind resistance of the wall-mounted furnace is improved.
For the computer readable storage medium, when the blockage occurs, the target current value of the gas proportional valve is determined according to the actual wind pressure of the fan, so that the adjusted protective wind pressure is smaller than the actual wind pressure when the blockage occurs, the wall-mounted furnace is prevented from being forcibly shut down, the wall-mounted furnace can adapt to different working conditions, and the wind resistance of the wall-mounted furnace is improved.
Drawings
Fig. 1 is a schematic structural view of a wall-hanging stove system according to an embodiment of the present application;
fig. 2 is a flowchart illustrating a method for controlling a wall-hanging stove according to an embodiment of the present disclosure;
fig. 3 is a flowchart of a control method of a wall-hanging stove according to a second embodiment of the present application;
fig. 4 is a schematic structural diagram of a control device of a wall-hanging stove according to a third embodiment of the present application;
fig. 5 is a diagram illustrating the results of the apparatus provided in the fourth embodiment of the present application.
The figures are labeled as follows:
1-a fan; 2-a venturi tube; 3-a wind pressure sensor; 4-a gas proportional valve;
101-a judgment module; 102-a target current value determination module; 103-proportional valve current adjusting module; 104-a holding module;
12-a device; 14-an external device; 16-a processing unit; 18-system memory; 20-a network adapter; 22-I/O interface; 24-a display; 28-a bus; 30-random access memory; 32-cache memory; 34-a storage system; 40-procedure/utility; 42-program module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The first embodiment is as follows:
the present embodiment provides a control method of a wall-hanging stove for controlling a wall-hanging stove system, as shown in fig. 1, which includes a fan 1, a venturi tube 2, a wind pressure sensor 3, and a gas proportional valve 4.
The fan 1 produces the air current after circular telegram, thereby through the size of giving the operating voltage control air current that fan 1 is different, venturi 2 links to each other with fan 1, and the air current passes through venturi 2, and wind pressure sensor 3 is used for acquireing the wind pressure in venturi 2, and the actual wind pressure of fan 1 is established to the wind pressure, can understand, gives 1 different operating voltage with fan, will record different wind pressures. Under normal working conditions, the gas proportional valve 4 is associated with the fan 1, and the proportional valve current of the gas proportional valve 4 determines the actual wind pressure of the fan 1.
The actual wind pressure at any moment is obtained through the wind pressure sensor 3, when the proportional valve current I in the gas proportional valve 4 is within a preset current range, any proportional valve current I corresponds to a protection wind pressure Vp and an operation wind pressure Vr respectively, and the protection wind pressure Vp corresponding to any proportional valve current I is smaller than the operation wind pressure Vr corresponding to the proportional valve current I.
Fig. 2 is a flowchart of the control method provided in this embodiment, and as shown in fig. 2, the control method includes step S100 of determining whether the wall-hanging stove is blocked.
In this embodiment, step S100 includes: firstly, whether the current actual wind pressure is consistent with the current running wind pressure is judged, if the current actual wind pressure is inconsistent with the current running wind pressure, the working voltage of the fan 1 is adjusted to the maximum working voltage, and then if the actual wind pressure is smaller than the protection wind pressure Vp corresponding to the current proportional valve current, the wall-mounted furnace is judged to be blocked.
It can be understood that, under normal conditions, the actual voltage of the fan 1 is the rated voltage, for example 185V, and the actual wind pressure of the fan 1 is consistent with the operating wind pressure corresponding to the proportional valve current I under the rated voltage of the fan 1, and when the actual wind pressure is inconsistent with the operating wind pressure, it indicates that a blockage may occur. Afterwards, the working voltage of the fan 1 is adjusted to the maximum working voltage, it can be understood that the maximum working voltage is greater than the rated voltage, for example, the maximum working voltage is set to 200V, after the fan 1 is adjusted to 200V, the rotating speed of the fan 1 is increased, if the system is normal, the measured actual wind pressure is increased at the same time, and is inevitably greater than the current running wind pressure Vr. Therefore, if the actual wind pressure is smaller than the current protection wind pressure Vp, the wall-mounted furnace is indicated to be blocked, and the problem that the wall-mounted furnace cannot be solved by adjusting the fan 1 to the maximum wind volume is achieved.
In other embodiments, the determination of the occurrence of the clogging of the wall-hanging stove may be made directly from a sensor, for example, a plurality of image sensors arranged in the exhaust duct for obtaining images in the exhaust duct, and the presence or absence of the clogging is determined based on the image analysis. The present embodiment is not limited thereto. A mass sensor may also be provided, which is attached at a specific location and indicates a jam when its weight exceeds a preset range.
Of course, if no clogging occurs after ignition, step S400 is performed to keep the current state.
And step S200 is carried out after the step S100, and the target current value of the gas proportional valve 4 is determined according to the actual wind pressure of the fan 1 when the blockage occurs. The protection wind pressure corresponding to the target current value is not greater than the actual wind pressure when the blockage occurs.
It should be noted that any proportional valve current of the gas proportional valve 4 is correspondingly provided with a protection wind pressure Vp and an operation wind pressure Vr larger than the protection wind pressure Vp, and because there is a one-to-one correspondence relationship between the proportional valve current and the wind pressure values (the operation wind pressure Vr, the protection wind pressure Vp), firstly, the protection wind pressure Vp the same as the actual wind pressure value is determined according to the actual wind pressure, then, the corresponding proportional valve current is determined according to the protection wind pressure Vp, and the proportional valve current is the target current value.
It should be noted that, when the system (for example, the exhaust duct) is not blocked, the operating wind pressure Vr is kept consistent with the actual wind pressure, that is, the operating wind pressure Vr corresponding to the actual wind pressure and the current proportional valve current is obtained in real time, and the operating voltage of the fan 1 is adjusted in real time, so that the actual wind pressure is always kept consistent with the operating wind pressure Vr, for example, if the actual wind pressure is smaller than the operating voltage.
Further, a mapping relation exists between the current of the proportional valve, the operating wind pressure Vr and the protective wind pressure Vp, and the mapping relation is not limited to a functional relation or a mapping table. In the embodiment, a continuous function relationship exists between the proportional valve current and the operating wind pressure Vr, and a continuous function relationship also exists between the proportional valve current and the protective wind pressure Vp, so that continuous mapping relationships exist between the proportional valve current and the operating wind pressure Vr and between the proportional valve current and the protective wind pressure Vp, and the target current value is determined more accurately.
Preferably, the following functional relationship exists between the proportional valve current and the protective wind pressure Vp:
Y＝m · x + a; wherein, Y represents the current value of the proportional valve (in mA), X represents the value of the protective wind pressure Vp (in Pa), and m and a represent coefficients respectively. It is to be understood that,the function relationship is a linear function.
In the embodiment, the following functional relationship exists between the proportional valve current and the operating wind pressure Vr:
Z＝n · x + b; wherein X represents a proportional valve current value (in mA), Z represents a value of the operating wind pressure Vr (in Pa), and n and b represent coefficients, respectively. It is to be understood that the functional relationship is also a linear function.
The two functional relations are set to be linear functions, namely the proportional valve current can be determined through the protection wind pressure Vp or the running wind pressure Vr, the corresponding proportional valve current value can be quickly obtained in the process, the operation amount is reduced, and the control efficiency is improved.
In this embodiment, m ═ n, a ≠ b, such that the two functions have the same slope, with the two functions being parallel to each other. It can be understood that when unit change of the proportional valve current occurs, the change rate of the operating wind pressure Vr is the same as that of the protection wind pressure Vp, and the operating wind pressure Vr and the actual wind pressure are consistent when the system is not blocked, namely, the change rate of the protection wind pressure Vp is also the same as that of the actual wind pressure.
In this embodiment, the value range of X is 45mA to 145mA, the range of the operating wind pressure Vr is 60Pa to 100Pa, the range of the protective wind pressure Vp is 40Pa to 80Pa, m is 0.4, a is 22, and b is 42.
After step S200, step S300 is continued to adjust the proportional valve current to the target current value.
It should be noted that, in step S300, the process of adjusting the proportional valve current may be a gradual adjustment, i.e., the proportional valve current is uniformly adjusted down at a specific rate, and finally falls to the target current value. Of course, the target current value may be adjusted instantaneously, i.e., the proportional valve current is adjusted down rapidly to the target current value. The present embodiment is not limited thereto.
After step S300, step S400 is performed to keep the current state. And the control of the wall-mounted boiler during blockage is completed.
According to the control method provided by the embodiment, when blockage occurs, the target current value of the gas proportional valve 4 is determined according to the actual wind pressure of the fan 1, so that the adjusted protection wind pressure is smaller than the actual wind pressure when the blockage occurs, forced shutdown of the wall-hanging furnace is avoided, different working conditions can be adapted, and the wind resistance of the wall-hanging furnace is improved.
Example two:
the embodiment provides a control method of a wall-hanging stove, which is used for controlling a wall-hanging stove system, as shown in fig. 1, the wall-hanging stove system comprises a fan 1, a venturi tube 2, a wind pressure sensor 3, a gas proportional valve 4 and a terminal machine (not shown in the figure). In this embodiment, the terminal is configured as a hot water switch.
After the user starts the hot water switch, this hanging stove system begins work, simultaneously, fan 1 circular telegram back produces the air current, thereby through giving the size of the operating voltage control air current of fan 1 difference, venturi 2 links to each other with fan 1, the air current is through venturi 2, wind pressure sensor 3 is used for acquireing the wind pressure in venturi 2, the actual wind pressure of fan 1 is established to the wind pressure, can understand, give 1 different operating voltage of fan, will record different wind pressures. Under normal working conditions, the gas proportional valve 4 is associated with the fan 1, and the proportional valve current of the gas proportional valve 4 determines the actual wind pressure of the fan 1.
The actual wind pressure at any moment is obtained through the wind pressure sensor 3, when the proportional valve current I in the gas proportional valve 4 is within a preset current range, any proportional valve current I corresponds to a protection wind pressure Vp and an operation wind pressure Vr respectively, and the protection wind pressure Vp corresponding to any proportional valve current I is smaller than the operation wind pressure Vr corresponding to the proportional valve current I.
Fig. 3 is a flowchart of a control method provided in this embodiment, and as shown in fig. 3, the control method includes:
and S101, responding to a starting operation of a user, and adjusting the working voltage of the fan 1 to the maximum working voltage.
Step S101 is to enable the fan 1 to enter a pre-cleaning state during startup, and after step S101, step S201 is performed to determine whether a difference between the actual wind pressure after response and the maximum protection wind pressure is greater than a preset difference; if the difference is greater than the preset difference, the step S301 is performed to ignite.
It should be noted that the range of the preset difference value can be set to any value between 15Pa and 30Pa, and in this embodiment, the preset difference value is set to 20Pa, that is, if the measured actual wind pressure is greater than the maximum protection wind pressure of 20Pa, the ignition is started.
And if the difference value between the actual wind pressure and the maximum protection wind pressure is smaller than or equal to the preset difference value, performing step S302, reporting a fault and stopping the machine.
Note that the alarm in step S302 is not limited to the alarm lamp, for example, the red lamp, being turned on, and the form is not limited to the normally-on red lamp or the flashing red lamp. The present embodiment is not limited thereto.
Further, a preset interval may be set between the failure reporting and the shutdown, for example, 15s or 20s may not be equal, but the embodiment is not limited thereto.
In step S301, when the ignition stage is started, ignition is performed according to the set ignition wind pressure, and the wind pressure protection is not performed in the ignition stage, that is, when the ignition wind pressure is lower than the minimum protection wind pressure, the step S302 is not performed.
There is flame reaction after the ignition is accomplished, if hanging stove system normal operating, operation wind pressure Vr keeps unanimous with actual wind pressure, through the real-time adjustment to the operating voltage of fan 1 promptly, makes the wind pressure value in the venturi 2 and operation wind pressure Vr keep unanimous all the time.
After step S301, step S401 is performed to determine whether the wall-hanging stove is clogged.
In this embodiment, step S401 includes: firstly, whether the current actual wind pressure is consistent with the current running wind pressure is judged, if the current actual wind pressure is inconsistent with the current running wind pressure, the working voltage of the fan 1 is adjusted to the maximum working voltage, and then if the actual wind pressure is smaller than the protection wind pressure Vp corresponding to the current proportional valve current, the wall-mounted furnace is judged to be blocked.
It can be understood that, under normal conditions, the actual voltage of the fan 1 is the rated voltage, for example 185V, and the actual wind pressure of the fan 1 is consistent with the operating wind pressure corresponding to the proportional valve current I under the rated voltage of the fan 1, and when the actual wind pressure of the fan 1 is inconsistent with the operating wind pressure corresponding to the proportional valve current I, it indicates that a blockage may occur. Afterwards, the working voltage of the fan 1 is adjusted to the maximum working voltage, it can be understood that the maximum working voltage is greater than the rated voltage, for example, the maximum working voltage is set to 200V, after the fan 1 is adjusted to 200V, the rotating speed of the fan 1 is increased, if the system is normal, the measured actual wind pressure is increased at the same time, and is inevitably greater than the current running wind pressure Vr. Therefore, if the actual wind pressure is smaller than the current protection wind pressure Vp, the wall-mounted furnace is indicated to be blocked, and the problem that the wall-mounted furnace cannot be solved by adjusting the fan 1 to the maximum wind volume is achieved.
Further, the present embodiment may determine that the wall-hanging stove is clogged directly from the sensor, for example, by disposing a plurality of image sensors in the exhaust duct, the image sensors being used to obtain images of the exhaust duct, and determining whether or not clogging is present based on the image analysis. The present embodiment is not limited thereto. A mass sensor may also be provided, which is attached at a specific location and indicates a jam when its weight exceeds a preset range.
Of course, if no clogging occurs after ignition, step S801 is performed to keep the current state.
If the wall-mounted boiler is blocked, step S501 is performed to determine a target current value of the gas proportional valve 4 according to the actual wind pressure of the fan 1 when the blockage occurs. The protection wind pressure corresponding to the target current value is not greater than the actual wind pressure when the blockage occurs.
Specifically, any proportional valve current of the gas proportional valve 4 is correspondingly provided with a protection wind pressure Vp and an operation wind pressure Vr larger than the protection wind pressure Vp, and due to the one-to-one correspondence relationship between the proportional valve current and the wind pressure values (the operation wind pressure Vr and the protection wind pressure Vp), firstly, the protection wind pressure Vp which is the same as the actual wind pressure value is determined according to the actual wind pressure, then, the corresponding proportional valve current is determined according to the protection wind pressure Vp, and the proportional valve current is the target current value.
It should be noted that, since the proportional valve current-operating wind pressure Vr-protective wind pressure Vp has a mapping relationship, the mapping relationship is not limited to a functional relationship or a mapping table. In the embodiment, a continuous function relationship exists between the proportional valve current and the operating wind pressure Vr, and a continuous function relationship also exists between the proportional valve current and the protective wind pressure Vp, so that continuous mapping relationships exist between the proportional valve current and the operating wind pressure Vr and between the proportional valve current and the protective wind pressure Vp, and the target current value is determined more accurately.
Preferably, the following functional relationship exists between the proportional valve current and the protective wind pressure Vp:
Y＝m · x + a; wherein, Y represents the current value of the proportional valve (in mA), X represents the value of the protective wind pressure Vp (in Pa), and m and a represent coefficients respectively. It is understood that the function relationship is a linear function.
In the embodiment, the following functional relationship exists between the proportional valve current and the operating wind pressure Vr:
Z＝n · x + b; wherein X represents a proportional valve current value (in mA), Z represents a value of the operating wind pressure Vr (in Pa), and n and b represent coefficients, respectively. It is to be understood that the functional relationship is also a linear function.
The two functional relations are set to be linear functions, namely the proportional valve current can be determined through the protection wind pressure Vp or the running wind pressure Vr, the corresponding proportional valve current value can be quickly obtained in the process, the operation amount is reduced, and the control efficiency is improved.
In this embodiment, m ═ n, a ≠ b, such that the two functions have the same slope, with the two functions being parallel to each other. It can be understood that when unit change of the proportional valve current occurs, the change rate of the operating wind pressure Vr is the same as that of the protection wind pressure Vp, and the operating wind pressure Vr and the actual wind pressure are consistent when the system is not blocked, namely, the change rate of the protection wind pressure Vp is also the same as that of the actual wind pressure.
In this embodiment, the value range of X is 45mA to 145mA, the range of the operating wind pressure Vr is 60Pa to 100Pa, the range of the protective wind pressure Vp is 40Pa to 80Pa, m is 0.4, a is 22, and b is 42.
After step S501, step S601 is performed to adjust the proportional valve current to the target current value.
It should be noted that, in step S401, the process of adjusting the proportional valve current may be a gradual adjustment, that is, the proportional valve current is uniformly adjusted down at a specific rate, and finally, the current value is decreased to the target current value. Of course, the target current value may be adjusted instantaneously, i.e., the proportional valve current is adjusted down rapidly to the target current value. The present embodiment is not limited thereto.
And step S701 is carried out after the step S601, and whether the smoke meets the preset requirement is judged.
In this embodiment, the preset requirement in step S701 is: the carbon monoxide (CO) concentration is less than 0.2%. It can be understood that a carbon monoxide concentration sensor is further arranged inside the smoke exhaust pipe, if the detected carbon monoxide concentration is lower than 0.2%, the smoke is in accordance with the requirement, and the step S801 is performed to keep the current state.
If it is detected that the carbon monoxide concentration does not meet the preset requirement, step S302 is performed.
According to the control method provided by the embodiment, when blockage occurs, the target current value of the gas proportional valve 4 is determined according to the actual wind pressure of the fan 1, so that the adjusted protection wind pressure is smaller than the actual wind pressure when the blockage occurs, forced shutdown of the wall-hanging furnace is avoided, different working conditions can be adapted, and the wind resistance of the wall-hanging furnace is improved.
Example three:
the embodiment provides a control device of a wall-hanging stove, which is used for controlling a wall-hanging stove system.
As shown in fig. 1, the wall-hanging furnace system includes a fan 1, a venturi tube 2, a wind pressure sensor 3, and a gas proportional valve 4.
The fan 1 produces the air current after circular telegram, thereby through the size of giving the operating voltage control air current of fan 1 difference, venturi 2 links to each other with fan 1, and the air current passes through venturi 2, and wind pressure sensor 3 is used for obtaining the wind pressure in venturi 2, and the actual wind pressure of hanging stove system is established to the wind pressure, can understand, gives 1 different operating voltage of fan, will record different wind pressures.
As shown in fig. 4, the control device of the wall-hanging stove includes a determination module 101, a target current value determination module 102, a proportional valve current adjustment module 103, and a holding module 104.
Specifically, the judging module 101 is configured to judge whether the wall-hanging stove is blocked.
And the target current value determining module 102 is used for determining a target current value of the gas proportional valve 4 according to the actual wind pressure of the fan 1 when the blockage occurs.
And a proportional valve current adjusting module 103, configured to adjust the proportional valve current to a target current value.
A holding module 104 for holding the current state.
The wall-hanging stove control device specifically executes the flow of the method embodiments described in the first embodiment and the second embodiment, and for details, the contents of the embodiments are described above, and details are not described in this embodiment again. The controlling means that this embodiment provided, when taking place to block up, confirm the target current value of gas proportional valve according to the actual wind pressure of fan to make the protection wind pressure after the adjustment be less than the actual wind pressure when blockking up, thereby avoid hanging the stove and shut down by force, and can adapt to different operating modes, improved hanging stove's anti-wind ability.
Example four:
the present embodiment provides an apparatus, and FIG. 5 shows a block diagram of an apparatus 12 suitable for use in implementing the present embodiment. It should be noted that the device 12 shown in fig. 5 is only an example, and should not bring any limitation to the function and the scope of the application of the embodiment of the present invention.
As shown in FIG. 5, device 12 is in the form of a general purpose computing device. The components of device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. Device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, and commonly referred to as a "hard drive"). Although not shown in FIG. 5, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
The processing unit 16 executes various functional applications and data processing by executing programs stored in the system memory 28, for example, to implement a control method provided in the first or second embodiment of the present invention.
To the equipment that this embodiment provided, when taking place to block up, confirm the target current value of gas proportional valve according to the actual wind pressure of fan to the protection wind pressure after making the adjustment is less than the actual wind pressure when blockking up, thereby avoids hanging stove forced shutdown, and can adapt to different operating modes, has improved hanging stove's anti-wind ability.
Example five:
the present embodiment provides a computer-readable storage medium on which a computer program is stored, which when executed by a processor implements a control method as provided in one or two of the embodiments of all inventions of the present application.
For the computer-readable storage medium provided by this embodiment, when a blockage occurs, the target current value of the gas proportional valve is determined according to the actual wind pressure of the fan, so that the adjusted protection wind pressure is smaller than the actual wind pressure when the blockage occurs, thereby preventing the wall-hanging stove from being forcibly turned off, adapting to different working conditions, and improving the wind resistance of the wall-hanging stove.
Any combination of one or more computer-readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A control method of a wall-hanging stove is characterized in that after ignition, when the wall-hanging stove is judged to be blocked, the following adjusting steps are executed:
determining a target current value of a gas proportional valve according to the current actual wind pressure of a fan, wherein any proportional valve current of the gas proportional valve corresponds to a protection wind pressure and an operation wind pressure, and the protection wind pressure corresponding to the target current value is lower than the current actual wind pressure;
and adjusting the proportional valve current of the gas proportional valve to the target current value.
2. The method according to claim 1, wherein after ignition, a current actual wind pressure of a fan is detected in real time, and when the current actual wind pressure is smaller than a protection wind pressure corresponding to a current proportional valve current and the fan operates at a maximum voltage, it is determined that the wall-hanging stove is blocked.
3. The method according to claim 2, wherein after ignition, a current actual wind pressure of the fan is detected in real time and a current operating wind pressure corresponding to a current proportional valve current is obtained, and when the current actual wind pressure is inconsistent with the current operating wind pressure, the operating voltage of the fan is adjusted so that the adjusted actual wind pressure is the same as the operating wind pressure.
4. The method for controlling the wall-hanging stove according to claim 2, wherein the proportional valve current is within a preset current range, and the relationship between the proportional valve current and the protection wind pressure is as follows:
Y＝m·X+a；
the relationship between the proportional valve current and the operation wind pressure is as follows:
Z＝n·X+b；
wherein X represents proportional valve current, Y represents protection wind pressure, Z represents operation wind pressure, and a, b, m and n all represent coefficients.
5. The method of claim 4, wherein m is n, and a is not equal to b.
6. The method of controlling a wall hanging stove according to any one of claims 1 to 5, characterized in that the ignition includes the steps of:
responding to a starting operation made by a user, and adjusting the working voltage of the fan to the maximum working voltage;
and if the difference value between the actual wind pressure and the maximum protection wind pressure of the fan at the maximum working voltage is larger than a preset difference value, igniting.
7. The method for controlling the wall-hanging furnace according to claim 6, wherein after the proportional valve current of the gas proportional valve is adjusted to the target current value, whether the flue gas meets a preset requirement is judged, if yes, the wall-hanging furnace is kept running in the current state, and if not, a fault is reported and the wall-hanging furnace is shut down.
8. A control device of a wall-hanging stove is characterized by comprising:
the target current value determining module is used for determining a target current value of a gas proportional valve according to the current actual wind pressure of a fan, wherein any proportional valve current of the gas proportional valve corresponds to a protection wind pressure and an operation wind pressure, and the protection wind pressure corresponding to the target current value is lower than the current actual wind pressure; and
and the proportional valve current adjusting module is used for adjusting the proportional valve current to the target current value.
9. An apparatus, comprising:
one or more processors;
storage means for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the method of controlling the wall-hanging stove according to any one of claims 1 to 7.
10. A computer-readable storage medium on which a computer program is stored, the computer program, when being executed by a processor, implementing the method of controlling a wall-hanging stove according to any one of claims 1 to 7.
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| CN202210152893.6A CN114811958B (en) | 2022-02-18 | 2022-02-18 | Control method, device and equipment of wall-mounted furnace and computer readable storage medium |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06317323A (en) * | 1993-03-10 | 1994-11-15 | Sanki Gas Kigu Kk | Control method of safety device for indoor setting type combustor |
| CN110186194A (en) * | 2018-04-27 | 2019-08-30 | 华帝股份有限公司 | Control method for self-adaptive wind pressure of gas water heater |
| CN110220244A (en) * | 2019-05-14 | 2019-09-10 | 深圳市合信达控制系统有限公司 | A kind of method, system and burnt gas wall hanging furnace improving efficiency of combustion |
| CN110906560A (en) * | 2019-11-06 | 2020-03-24 | 宁波方太厨具有限公司 | Working method of gas heating water heater based on flue blockage detection |
| CN112128991A (en) * | 2020-09-02 | 2020-12-25 | 华帝股份有限公司 | Exhaust protection control method and water heater using same |
| CN112212357A (en) * | 2019-07-09 | 2021-01-12 | 深圳市合信达控制系统有限公司 | Gas quantity control method, gas wall-mounted furnace, gas water heater and heating and ventilation system |
-
2022
- 2022-02-18 CN CN202210152893.6A patent/CN114811958B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06317323A (en) * | 1993-03-10 | 1994-11-15 | Sanki Gas Kigu Kk | Control method of safety device for indoor setting type combustor |
| CN110186194A (en) * | 2018-04-27 | 2019-08-30 | 华帝股份有限公司 | Control method for self-adaptive wind pressure of gas water heater |
| CN110220244A (en) * | 2019-05-14 | 2019-09-10 | 深圳市合信达控制系统有限公司 | A kind of method, system and burnt gas wall hanging furnace improving efficiency of combustion |
| CN112212357A (en) * | 2019-07-09 | 2021-01-12 | 深圳市合信达控制系统有限公司 | Gas quantity control method, gas wall-mounted furnace, gas water heater and heating and ventilation system |
| CN110906560A (en) * | 2019-11-06 | 2020-03-24 | 宁波方太厨具有限公司 | Working method of gas heating water heater based on flue blockage detection |
| CN112128991A (en) * | 2020-09-02 | 2020-12-25 | 华帝股份有限公司 | Exhaust protection control method and water heater using same |
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| CN114811958B (en) | 2024-03-15 |
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