CN112032772A - Gas source type self-adaptive stove control method and control system - Google Patents
Gas source type self-adaptive stove control method and control system Download PDFInfo
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- CN112032772A CN112032772A CN202010795206.3A CN202010795206A CN112032772A CN 112032772 A CN112032772 A CN 112032772A CN 202010795206 A CN202010795206 A CN 202010795206A CN 112032772 A CN112032772 A CN 112032772A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000007789 gas Substances 0.000 claims description 85
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 33
- 239000003345 natural gas Substances 0.000 claims description 15
- 230000003044 adaptive effect Effects 0.000 claims description 12
- 238000010411 cooking Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- Engineering & Computer Science (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 gas source type self-adaptive stove control method and a gas source type self-adaptive stove control system, wherein the gas source type self-adaptive stove control method specifically comprises the following steps: firstly, detecting whether the cooker has an ignition signal or not, if not, continuing to detect, otherwise, judging the type of a gas source of the cooker; then adjusting the opening of the proportional valve corresponding to each fire gear according to the type of the air source to form a one-to-one correspondence relationship between the gears and the openings of the proportional valves; finally, detecting the current fire gear of the stove, and adjusting the opening of a proportional valve corresponding to the current fire gear according to the one-to-one correspondence relationship to complete the control of the stove; according to the invention, different types of gas sources are detected, and the opening degree of each firepower gear of the proportional valve is automatically adjusted according to the types of the gas sources so as to adjust the gas flow, so that the effect of automatically adapting to different gas types is achieved.
Description
Technical Field
The invention belongs to the technical field of gas stoves, and particularly relates to a gas source type self-adaptive stove control method and a gas source type self-adaptive stove control system.
Background
At present, gas sources of gas cookers sold on the market mainly comprise two kinds, namely 12T natural gas and 20Y liquefied gas, the cookers adopting different gas sources need different machine types for matching, and the cookers with the two gas sources cannot be used universally; the main reason is that the main component of natural gas is methane (CH4), and the requirement on oxygen is not high but the requirement on air is high during combustion, so that a valve body nozzle of a natural gas cooker is small, and an air inlet is large; the main components of the liquefied gas, namely alkane and alkene, are mainly one or two of propane, propylene, butane and butylene, and a large amount of oxygen is needed during combustion, so that a valve body nozzle of the liquefied gas cooker is large, and an air inlet is also large; under the condition that the air inlet of the natural gas cooker valve body is large and the oxygen quantity required by combustion of two air sources can be met, the nozzle of the natural gas cooker valve body is larger than that of the liquefied gas cooker valve body, so that the same firepower is achieved.
Because nozzles with different sizes are required to be equipped, natural gas and liquefied gas stoves sold on the market cannot be used universally, consumers also need to buy stoves with different gas sources according to different gas sources, and the stoves with corresponding gas sources also need to be replaced when the gas sources are changed, which brings inconvenience to the consumers.
Disclosure of Invention
In order to solve the problems, the invention provides a gas source type self-adaptive stove control method, which adjusts the opening degree of each fire gear of a proportional valve according to the type of a gas source so as to adjust the gas flow, thereby achieving the effect of automatically adapting to different gas types.
The invention also discloses a gas source type self-adaptive stove control system.
The technical scheme adopted by the invention is as follows:
a gas source type self-adaptive stove control method is implemented according to the following steps:
s1, detecting whether the stove is ignited, if yes, entering S2, otherwise, continuing to detect;
s2, judging the type of the stove gas source;
s3, adjusting the opening of the proportional valve corresponding to each fire gear according to the type of the air source in the S2 to form a one-to-one correspondence relationship between the gears and the openings of the proportional valves;
and S4, detecting the current fire gear of the cooker, and adjusting the opening of the proportional valve corresponding to the current fire gear according to the one-to-one correspondence in S3 to complete the control of the cooker.
Preferably, the determining the type of the gas source in S2 specifically includes:
the judgment is carried out through a gas sensor arranged on a gas source pipeline of the cooker, and the gas sensor is used for detecting natural gas and liquefied gas.
Preferably, in S3, the adjusting the opening of the proportional valve corresponding to each fire gear is specifically:
the adjustment of the proportional valve opening is achieved by adjusting the proportional valve drive current, which is proportional to the proportional valve opening.
Preferably, the adjusting of the opening of the proportional valve is realized by adjusting the driving current of the proportional valve, and specifically, the adjusting of the opening of the proportional valve is as follows:
the regulation of the proportional valve driving current is realized by regulating the duty ratio of the PWM waveform output by the cooker controller, and the duty ratio of the PWM waveform is in direct proportion to the proportional valve driving current.
Preferably, in S3, the opening of the proportional valve corresponding to each fire gear is adjusted according to the type of the air source, specifically: the proportional valve opening corresponding to the natural gas is larger than the proportional valve opening corresponding to the liquefied gas.
Preferably, the method further comprises: and selecting the air source through an air source selection module.
Preferably, the selection of the air source by the air source selection module is located before the step S2 to avoid the air source selection module from malfunctioning to affect the adjustment of the opening of the proportional valve.
A kind of gas source kind adaptive cooking utensils control system, it uses the above-mentioned kind of gas source adaptive cooking utensils control method, it includes the kind of gas source judges module, controller, proportional valve and burner;
the air source type judging module is used for detecting the type of the air source and transmitting the detection result to the controller;
the controller receives the detection result and adjusts the opening degree of the proportional valve corresponding to each fire gear according to the detection result to form a one-to-one correspondence relationship between the gears and the opening degrees of the proportional valves;
the controller is also used for detecting the current gear of the cooker and adjusting the opening of the proportional valve corresponding to the current firepower gear according to the one-to-one correspondence;
and the gas source enters the combustor for combustion after passing through the proportional valve.
Preferably, the gas source type determining module includes a gas sensor.
Preferably, the control system further comprises an air source selection module, and the air source selection module is connected with the controller for selecting the air source type.
Compared with the prior art, the method is implemented by firstly detecting whether the cooker has an ignition signal or not, if not, continuing the detection, otherwise, judging the type of the gas source of the cooker; then adjusting the opening of the proportional valve corresponding to each fire gear according to the type of the air source to form a one-to-one correspondence relationship between the gears and the openings of the proportional valves; finally, detecting the current fire gear of the stove, and adjusting the opening of a proportional valve corresponding to the current fire gear according to the one-to-one correspondence relationship to complete the control of the stove; according to the invention, different types of gas sources are detected, and the opening degree of each firepower gear of the proportional valve is automatically adjusted according to the types of the gas sources so as to adjust the gas flow, so that the effect of automatically adapting to different gas types is achieved.
Drawings
FIG. 1 is a flow chart of a gas source type adaptive cooking range control method provided in embodiment 1 of the present invention;
fig. 2 is a system block diagram of a gas source type adaptive cooker control system provided in embodiment 2 of the present invention.
Wherein:
1. the device comprises an air source type judging module, 2 a controller, 3 a proportional valve, 4 a burner and 5 an air source selecting module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not mean that the device or member to which the present invention is directed must have a specific orientation or position, and thus, cannot be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The embodiment 1 of the invention provides a gas source type self-adaptive stove control method, which is implemented according to the following steps as shown in figure 1:
s1, detecting whether the stove is ignited, if yes, entering S2, otherwise, continuing to detect;
s2, judging the type of the stove gas source;
specifically, the judgment is carried out through a gas sensor arranged on a gas source pipeline of the stove, and the gas sensor is used for detecting natural gas and liquefied gas;
in addition, the specific position of the gas sensor also depends on whether the stove has finished ignition when judging the gas source type of the stove;
when the gas sensor is arranged in front of the burner, the type of the gas source is judged firstly, and then ignition is carried out; when the gas sensor is arranged in the combustor, ignition is firstly carried out, and then the type of a gas source is judged;
the two modes can judge the type of the gas source of the cooker, and only have little difference in time;
s3, adjusting the opening of the proportional valve corresponding to each fire gear according to the type of the air source in the S2 to form a one-to-one correspondence relationship between the gears and the openings of the proportional valves;
specifically, the opening degree of the proportional valve corresponding to the natural gas is larger than that of the proportional valve corresponding to the liquefied gas in the natural gas and the liquefied gas in the same gear.
In addition, the adjustment of the proportional valve opening degree is achieved by adjusting the proportional valve driving current, and the proportional valve driving current and the proportional valve opening degree are in direct proportion.
In addition, the adjustment of the opening of the proportional valve is realized by adjusting the driving current of the proportional valve, and specifically, the adjustment of the opening of the proportional valve is as follows:
the regulation of the proportional valve driving current is realized by regulating the duty ratio of the PWM waveform output by the cooker controller, and the duty ratio of the PWM waveform is in direct proportion to the proportional valve driving current;
and S4, detecting the current fire gear of the cooker, and adjusting the opening of the proportional valve corresponding to the current fire gear according to the one-to-one correspondence in S3 to complete the control of the cooker.
The method further comprises the following steps: and selecting the air source through an air source selection module.
Specifically, the air source selection module may be a key or a mechanical switch.
In one embodiment, the selection of the air source by the air source selection module is before the step S2 to avoid the air source selection module from malfunctioning to affect the adjustment of the opening of the proportional valve;
therefore, the user firstly selects the air source and then judges the type of the air source of the cooker to determine whether the selected air source is needed, and the condition that the opening of the proportional valve is influenced due to the fault of the air source selection module is avoided.
The relevant parameters of the proportional valve are:
the maximum driving current of the proportional valve is 200mA, the minimum driving current for keeping reliable opening is 20mA, the current range supplied by the proportional valve of the cooker controller is 0-250 mA, the controller controls the driving current supplied to the proportional valve by the proportional valve through the output PWM waveform of the IO port of the single chip microcomputer, and the proportional valve is in a direct proportion relation, namely when the output PWM waveform with the duty ratio of 0% is output by the IO port of the single chip microcomputer to drive the proportional valve driving module, the current of 0mA is output to the proportional valve, namely when the output PWM waveform with the duty ratio of 100% is output by the IO port of the single chip microcomputer to drive the proportional valve driving module, the current of 250mA is output to the proportional valve, and when the output duty ratio is between 0% and 100%, the output current is increased in a direct proportion.
In addition, in the present embodiment, more specifically, it is assumed that the range has 5 th fire power, and 5 th fire power is the largest, and 4 th fire power is the second to the last, and so on, and is divided into 5 th, 4 th, 3 th, 2 th, 1 th and 0 th, and 0 th is the off state;
the relationship between the drive current required by the proportional valves of different gears corresponding to different air sources and the duty ratio of the output PWM waveform of the IO port of the single chip microcomputer is shown in the following table 1:
TABLE 1
As can be seen from table 1 above, the natural gas range has a larger opening of the proportional valve than the liquid gas range in the same fire gear.
And correspondingly driving the proportional valve according to the parameters of the table according to the detected type of the used air source and the detected firepower gear, so as to meet the requirement.
In the embodiment, whether the cooker is ignited or not is firstly detected, if not, the detection is continued, otherwise, the type of the gas source of the cooker is judged; then adjusting the opening of the proportional valve corresponding to each fire gear according to the type of the air source to form a one-to-one correspondence relationship between the gears and the openings of the proportional valves; finally, detecting the current fire gear of the stove, and adjusting the opening of a proportional valve corresponding to the current fire gear according to the one-to-one correspondence relationship to complete the control of the stove; according to the invention, different types of gas sources are detected, and the opening degree of each firepower gear of the proportional valve is automatically adjusted according to the types of the gas sources so as to adjust the gas flow, so that the effect of automatically adapting to different gas types is achieved;
in addition, in the embodiment, the user can select the air source type according to personal preference or needs, and then judge the type of the stove air source after selecting the air source type to determine whether the selected air source is needed, so that the problem that the opening of the proportional valve is influenced due to the fault of the air source selection module is avoided.
Example 2
An embodiment 2 of the present invention provides an air source type adaptive cooker control system, as shown in fig. 2, to which the air source type adaptive cooker control method described in embodiment 1 is applied, including an air source type determination module 1, a controller 2, a proportional valve 3, and a burner 4;
the air source type judging module 1 is used for detecting the type of the air source and transmitting the detection result to the controller 2;
the controller 2 receives the detection result and adjusts the opening degree of the proportional valve 3 corresponding to each fire gear according to the detection result to form a one-to-one correspondence relationship between the gears and the opening degrees of the proportional valves 3;
the controller 2 is also used for detecting the current gear of the cooker and adjusting the opening of the proportional valve 3 corresponding to the current firepower gear according to the one-to-one correspondence;
the air source enters the combustor 4 for combustion after passing through the proportional valve 3.
Thus, with the structure, firstly the air source type judgment module 1 works to detect the type of the air source, then the type of the air source is transmitted to the controller 2, and the controller 2 receives the type of the air source and then adjusts the opening of the proportional valve 3 corresponding to each firepower gear according to the type to form a one-to-one correspondence relationship between the gears and the openings of the proportional valves 3; then, the controller 2 detects the current gear of the stove and adjusts the opening of the proportional valve 3 corresponding to the current firepower gear according to the one-to-one correspondence; and finally, the air source enters the combustor 4 through the proportional valve with the opening adjusted to be combusted.
The gas source type judging module 1 comprises a gas sensor;
in particular, the gas sensor is used for detecting natural gas and liquefied gas.
The control system further comprises an air source selection module 5, wherein the air source selection module 5 is connected with the controller 1 and is used for selecting the type of the air source;
therefore, a user can select the air source type according to personal preference or needs, and judge the type of the air source of the cooker after selecting the air source type to determine whether the selected air source is needed or not, so that the condition that the opening of the proportional valve is influenced due to the fault of the air source selection module is avoided.
The gas source type judgment module, the controller, the proportional valve, the burner and the gas source selection module are matched with one another, so that the cooker can be used for different gas sources.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A gas source type self-adaptive stove control method is characterized by comprising the following steps:
s1, detecting whether the stove is ignited, if yes, entering S2, otherwise, continuing to detect;
s2, judging the type of the stove gas source;
s3, adjusting the opening of the proportional valve corresponding to each fire gear according to the type of the air source in the S2 to form a one-to-one correspondence relationship between the gears and the openings of the proportional valves;
and S4, detecting the current fire gear of the cooker, and adjusting the opening of the proportional valve corresponding to the current fire gear according to the one-to-one correspondence in S3 to complete the control of the cooker.
2. The cooking utensils control method of air supply kind self-adaptation according to claim 1, characterized in that, the kind of air supply is judged in the S2, specifically:
the judgment is carried out through a gas sensor arranged on a gas source pipeline of the cooker, and the gas sensor is used for detecting natural gas and liquefied gas.
3. The cooking utensil control method of claim 2, wherein the opening of the proportional valve corresponding to each fire gear in S3 is specifically:
the adjustment of the proportional valve opening is achieved by adjusting the proportional valve drive current, which is proportional to the proportional valve opening.
4. The cooking utensil control method of claim 3 with an adaptive air source type, characterized in that the adjustment of the proportional valve opening is realized by adjusting the proportional valve driving current, specifically:
the regulation of the proportional valve driving current is realized by regulating the duty ratio of the PWM waveform output by the cooker controller, and the duty ratio of the PWM waveform is in direct proportion to the proportional valve driving current.
5. The cooking utensils control method of claim 4 that the kind of air supply type is adaptive, wherein in S3, the proportional valve opening degree corresponding to each fire gear is adjusted according to the kind of air supply, specifically: the proportional valve opening corresponding to the natural gas is larger than the proportional valve opening corresponding to the liquefied gas.
6. The cooking utensils control method of air supply kind adaptation according to any of claims 1-5, characterized in that the method also includes: and selecting the air source through an air source selection module.
7. The gas source kind adaptive cooking range control method according to claim 6, wherein the selection of the gas source by the gas source selection module is located before the step S2 to avoid the gas source selection module from malfunctioning and affecting the adjustment of the opening of the proportional valve.
8. An air source type adaptive stove control system is characterized in that the air source type adaptive stove control method is applied to any one of claims 1 to 7, and comprises an air source type judgment module (1), a controller (2), a proportional valve (3) and a combustor (4);
the air source type judging module (1) is used for detecting the type of the air source and transmitting the detection result to the controller (2);
the controller (2) receives the detection result and adjusts the opening of the proportional valve (3) corresponding to each fire gear according to the detection result to form a one-to-one correspondence relationship between the gears and the openings of the proportional valves (3);
the controller (2) is also used for detecting the current gear of the cooker and adjusting the opening of the proportional valve (3) corresponding to the current firepower gear according to the one-to-one correspondence;
the gas source enters the combustor (4) for combustion after passing through the proportional valve (3).
9. The cooking utensils control system of claim 8 where the gas source kind decision module (1) includes a gas sensor.
10. An air supply kind adaptive cooking utensils control system according to claim 8 or 9, characterized in that, the control system further includes an air supply selection module (5), the air supply selection module (5) is connected with the controller (1) for selecting air supply kind.
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Cited By (1)
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CN114344777A (en) * | 2021-12-01 | 2022-04-15 | 青岛诺诚化学品安全科技有限公司 | Compressed gas foam fire extinguishing system and method with stable supply of gas source and water source |
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