CN108662622A - A kind of flame detector system of gas-cooker - Google Patents
A kind of flame detector system of gas-cooker Download PDFInfo
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- CN108662622A CN108662622A CN201810498383.8A CN201810498383A CN108662622A CN 108662622 A CN108662622 A CN 108662622A CN 201810498383 A CN201810498383 A CN 201810498383A CN 108662622 A CN108662622 A CN 108662622A
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- 238000001514 detection method Methods 0.000 claims abstract description 63
- 238000002485 combustion reaction Methods 0.000 claims abstract description 60
- 230000003287 optical effect Effects 0.000 claims abstract description 33
- 239000007789 gas Substances 0.000 claims description 37
- 230000002159 abnormal effect Effects 0.000 claims description 21
- 239000011521 glass Substances 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 11
- 239000000567 combustion gas Substances 0.000 claims description 7
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- 239000003086 colorant Substances 0.000 description 2
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Classifications
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
- F23M11/04—Means for supervising combustion, e.g. windows
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Abstract
The embodiment of the invention discloses a kind of flame detector system of gas-cooker, burner and gas control valve are provided on the gas-cooker；Flame detector system includes temperature sensor, optical signal component and kitchen range main control unit；Temperature sensor is independent mutually with gas control valve；Temperature sensor, the temperature Tt for detecting flame at burner；Optical signal component, the brightness Ft for detecting flame；Kitchen range main control unit, for being successfully detected according to the temperature Tt of flame and/or the brightness Ft of flame to whether gas-cooker lights a fire, and it is whether abundant according to the brightness Ft detection flame combustions of flame.By the example scheme, eliminate temperature sensor influences caused by temperature-sensitive problem is igniting, and accurately detects whether gas-cooker lights a fire and whether flame fully burns.
Description
Technical field
The present embodiments relate to cooking equipment control technology, espespecially a kind of flame detector system of gas-cooker.
Background technology
Currently, gas combustion range ignition detection is mainly using the temperature-sensitive principle of thermocouple, it is simple in structure and straight with gas valve
Series control is connect, when gas combustion range ignition success, flame contact thermocouple body forms inner ion variation, and gas control valve is inhaled
It closes, gas-cooker normal work；When gas combustion range flameout, control valve disconnects, fray-out of flame.
Currently, gas-cooker beats non-ignitable one and is primarily due to thermocouple temperature sensitive problem and causes combustion gas control in industry
Valve processed control failure, due to stove burner fire cover be easy in cooking process it is contaminated block fire hole, flame is contacted with thermocouple probe
Insufficient or contactless, the condition of solenoid valve actuation is not achieved in ion variable quantity.
In addition, mainly potentiometer is arranged in the firepower size detection of gas-cooker on knob, pass through the rotation angle of potentiometer
Degree size judges current kitchen range firepower size, and the program is easy by bleed pressure size, the influence of the unobstructed situation of fire hole,
Practical firepower value size detection precision is poor.
Invention content
It in order to solve the above-mentioned technical problem, can an embodiment of the present invention provides a kind of flame detector system of gas-cooker
Eliminate temperature sensor influences caused by temperature-sensitive problem is igniting, and accurately detects whether gas-cooker lights a fire and flame
Whether fully burn.
In order to reach purpose of the embodiment of the present invention, an embodiment of the present invention provides a kind of flame detector system of gas-cooker,
Burner and gas control valve are provided on gas-cooker；Flame detector system includes temperature sensor, optical signal component and kitchen range
Main control unit；Temperature sensor is independent mutually with gas control valve；
Temperature sensor, the temperature Tt for detecting flame at burner；
Optical signal component, the brightness Ft for detecting flame；
Kitchen range main control unit, for according to the brightness Ft of the temperature Tt of flame and/or flame to gas-cooker whether light a fire successfully into
Row detection, and it is whether abundant according to the brightness Ft detection flame combustions of flame.
Optionally, whether kitchen range main control unit lights a fire to gas-cooker according to the temperature Tt of flame and/or the brightness Ft of flame
Successfully be detected including：It is successfully detected according to the temperature Tt of flame to whether gas-cooker lights a fire, and/or in the temperature of flame
When degree Tt is unsatisfactory for preset igniting success conditions, the brightness Ft of control optical signal component detection flame, and according to the bright of flame
Degree Ft is successfully detected to whether gas-cooker lights a fire.
Optionally, preset igniting success conditions include：The temperature Tt of the flame detected is greater than or equal to preset temperature
Spend threshold value Ts.
Optionally, whether kitchen range main control unit lights a fire to gas-cooker according to the temperature Tt of flame and/or the brightness Ft of flame
Successfully be detected including：The temperature Tt of flame at temperature sensor detection burner, control optical signal component detection are controlled simultaneously
The brightness Ft of flame, and successfully examined according to the brightness Ft of the temperature Tt of flame and flame to whether gas-cooker lights a fire simultaneously
It surveys.
Optionally, whether kitchen range main control unit simultaneously lights a fire to gas-cooker according to the temperature Tt of flame and the brightness Ft of flame
Successfully be detected including：
When the brightness Ft of the flame detected is greater than or equal to preset luminance threshold Fs, and the temperature Tt of flame is more than or waits
When preset temperature threshold Ts, judgement gas combustion range ignition success；
When the brightness Ft of the flame detected is greater than or equal to luminance threshold Fs, and the temperature Tt of flame is less than temperature threshold Ts,
It is abnormal to judge that igniting occurs in gas-cooker；
When the brightness Ft of the flame detected is less than luminance threshold Fs, and the temperature Tt of flame is greater than or equal to temperature threshold Ts,
It is abnormal to judge that igniting occurs in gas-cooker；
When the brightness Ft of the flame detected is less than luminance threshold Fs, and the temperature Tt of flame is less than temperature threshold Ts, sentence
Determine gas combustion range ignition failure.
Optionally, kitchen range main control unit according to the brightness Ft detection flame combustion of flame whether fully include：
It detects and whether there is pre-set color wave band in flame；Pre-set color wave band includes yellow band；
When, there are when pre-set color wave band, detecting the brightness peak Fp in the pre-set color wave band of flame, and will preset in flame
Brightness peak Fp in wave band is compared with preset luminance threshold Fr；
When the brightness peak Fp in default wave band is greater than or equal to luminance threshold Fr, judge that the brightness of flame is excessive, and judge
Flame combustion is insufficient；When the brightness peak Fp in default wave band is less than luminance threshold Fr, judge that the brightness of flame is normal, and
Judge that flame combustion is abundant.
Optionally, gas-cooker includes glass panel；Optical signal component includes：Light-sensitive element and photosensor signal processing unit；
Light-sensitive element is used to detect the brightness of flame；Photosensor signal processing unit is used to convert the brightness of flame to level signal；
Light-sensitive element is set to glass panel underneath towards the fire output hole on burner, and with the fire output hole of burner keep it is default away from
From.
Optionally, burner is one or more；Burner includes inner ring and outer ring；Be both provided in inner ring and outer ring it is multiple go out
Fire hole；
Temperature sensor is set between the inner ring and outer ring of each burner.
Optionally, it is additionally provided with ignition knob on gas-cooker；
Kitchen range main control unit is additionally operable to judge the big of current firepower according to the rotation angle of ignition knob and the brightness Ft of flame
It is small.
Optionally, kitchen range main control unit is additionally operable to the change of the temperature Tt of the rotation angle and flame according to ignition knob
Change situation and judges whether accident extinguishing situation.
The advantageous effect of the embodiment of the present invention may include：
1, the flame detector system of the gas-cooker of the embodiment of the present invention is provided with burner and gas control valve on gas-cooker；Flame
Detecting system includes temperature sensor, optical signal component and kitchen range main control unit；Temperature sensor is mutual with gas control valve
It is independent；Temperature sensor, the temperature Tt for detecting flame at burner；Optical signal component, the brightness Ft for detecting flame；Stove
Have main control unit, for being successfully detected according to the temperature Tt of flame and/or the brightness Ft of flame to whether gas-cooker lights a fire,
And it is whether abundant according to the brightness Ft detection flame combustions of flame.By the example scheme, temperature sensor is eliminated because of sense
Warm problem is influenced caused by igniting, and accurately detects whether gas-cooker lights a fire and whether flame fully burns.
2, the kitchen range main control unit of the embodiment of the present invention according to the temperature Tt of flame and/or the brightness Ft of flame to gas-cooker
Whether light a fire successfully be detected including：It is successfully detected according to the temperature Tt of flame to whether gas-cooker lights a fire, and/or
When the temperature Tt of flame is unsatisfactory for preset igniting success conditions, the brightness Ft of control optical signal component detection flame, and according to
The brightness Ft of flame is successfully detected to whether gas-cooker lights a fire.By the example scheme, improve about gas-cooker point
Fire whether successful Detection accuracy.
3, the kitchen range main control unit of the embodiment of the present invention according to the temperature Tt of flame and/or the brightness Ft of flame to gas-cooker
Whether light a fire successfully be detected including：The temperature Tt for controlling flame at temperature sensor detection burner simultaneously, controls optical signal
The brightness Ft of component detection flame, and whether lighted a fire success to gas-cooker according to the brightness Ft of the temperature Tt of flame and flame simultaneously
It is detected.The example scheme is detected simultaneously by the brightness Ft of temperature Tt and flame to flame, further improves inspection
Survey accuracy rate.
4, the kitchen range main control unit of the embodiment of the present invention is simultaneously according to the temperature Tt of flame and the brightness Ft of flame to combustion gas
Stove whether light a fire successfully be detected including：When the flame detected brightness Ft be greater than or equal to preset luminance threshold Fs,
And when the temperature Tt of flame is greater than or equal to preset temperature threshold Ts, judgement gas combustion range ignition success；When the fire detected
The brightness Ft of flame is greater than or equal to luminance threshold Fs, when the temperature Tt of flame is less than temperature threshold Ts, judges gas-cooker appearance point
It is fiery abnormal；When the brightness Ft of the flame detected is less than luminance threshold Fs, the temperature Tt of flame is greater than or equal to temperature threshold Ts
When, it is abnormal that igniting occurs in judgement gas-cooker；When the brightness Ft of the flame detected is less than luminance threshold Fs, and the temperature of flame
When Tt is less than temperature threshold Ts, judgement gas combustion range ignition failure.The example scheme is to detect gas-cooker by threshold decision
No to light a fire successfully, scheme is simple, easy to implement, and accuracy rate is high.
5, the kitchen range main control unit of the embodiment of the present invention according to the brightness Ft detection flame combustion of flame whether fully include：
It detects and whether there is pre-set color wave band in flame；Pre-set color wave band includes yellow band；When there are pre-set colors in flame
When wave band, detect the brightness peak Fp in the pre-set color wave band of flame, and by default wave band brightness peak Fp with it is default
Luminance threshold Fr compare；When the brightness peak Fp in default wave band is greater than or equal to luminance threshold Fr, flame is judged
Brightness is excessive, and judges that flame combustion is insufficient；When the brightness peak Fp in default wave band is less than luminance threshold Fr, judgement fire
The brightness of flame is normal, and judges that flame combustion is abundant.The example scheme is determined by detecting the brightness of yellow band in flame
Whether flame combustion is abundant, and Detection accuracy is high.
6, the gas-cooker of the embodiment of the present invention includes glass panel；Optical signal component includes：Light-sensitive element and photosensor signal
Processing unit；Light-sensitive element is used to detect the brightness of flame；Photosensor signal processing unit is used to convert the brightness of flame to electricity
Ordinary mail number；Light-sensitive element is set to glass panel underneath towards the fire output hole on burner, and keeps default with the fire output hole of burner
Distance.The example scheme may insure effective detection to combustion flame brightness, and prevent the high temperature during flame combustion
Light-sensitive element is caused to fail.
7, the burner of the embodiment of the present invention is one or more；Burner includes inner ring and outer ring；It is all provided in inner ring and outer ring
It is equipped with multiple fire output holes；Temperature sensor is set between the inner ring and outer ring of each burner.The example scheme may insure
Flame can be come into full contact with by fire output hole and temperature sensor, realize effective detection to combustion flame temperature.
8, it is additionally provided with ignition knob on the gas-cooker of the embodiment of the present invention；Kitchen range main control unit, is additionally operable to according to igniting
The rotation angle of knob and the brightness Ft of flame judge the size of current firepower.The example scheme improves firepower size
Accuracy of detection.
The other feature and advantage of the embodiment of the present invention will illustrate in the following description, also, partly from explanation
It is become apparent in book, or understand through the implementation of the invention.The purpose of the embodiment of the present invention and other advantages can pass through
Specifically noted structure is realized and is obtained in specification, claims and attached drawing.
Description of the drawings
Attached drawing is used for providing further understanding technical solution of the embodiment of the present invention, and one of constitution instruction
Point, the technical solution together with embodiments herein for explaining the embodiment of the present invention is not constituted to the embodiment of the present invention
The limitation of technical solution.
Fig. 1 is the gas kitchen range flame detecting system composition frame chart of the embodiment of the present invention；
Fig. 2 is the gas-cooker structural schematic diagram of the embodiment of the present invention；
Fig. 3 is the gas kitchen range flame detecting system operating diagram of the embodiment of the present invention；
Fig. 4 is the first flame checking scheme flow chart of the embodiment of the present invention；
Fig. 5 is second of flame checking scheme flow chart of the embodiment of the present invention.
Specific implementation mode
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing pair
The embodiment of the present invention is described in detail.It should be noted that in the absence of conflict, the embodiment in the application and reality
Applying the feature in example mutually can arbitrarily combine.
Step shown in the flowchart of the accompanying drawings can be in the computer system of such as a group of computer-executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be with suitable different from herein
Sequence executes shown or described step.
Embodiment one
A kind of flame detector system 1 of gas-cooker is provided with burner 2 and gas control valve 3 on gas-cooker（It is not shown）；Such as Fig. 1
Shown, flame detector system 1 may include temperature sensor 11, optical signal component 12 and kitchen range main control unit 13；Temperature passes
Sensor 11 is independent mutually with gas control valve 3；
Temperature sensor 11, the temperature Tt for detecting flame at burner 2；
Optical signal component 12, the brightness Ft for detecting flame；
Kitchen range main control unit 13, for whether being lighted a fire success to gas-cooker according to the brightness Ft of the temperature Tt of flame and/or flame
It is detected, and whether abundant according to the brightness Ft detection flame combustions of flame.
In embodiments of the present invention, which may include one or more burners, for burner particular number not
It is limited, for example, may include two burners, respectively the first burner 2-1（Left burner）With the second burner 2-2（Right burner）,
As shown in Figure 2.
In embodiments of the present invention, as shown in figure 3,13 major function of kitchen range main control unit is responsible for each module of gas-cooker
Signal detection, data processing and control output.
In embodiments of the present invention, temperature sensor 11 can detect the operating temperature of left and right burner in real time, when 2 points of burner
When igneous work(, the temperature that corresponding temperature sensor 11 detects is higher；After burner 2 is flame-out, temperature sensor 12 detects
Temperature variations be reduced rapidly by a higher temperature value.The data of detection can be transferred to by temperature sensor 12
Kitchen range main control unit 13 carries out operation, to judge the ignition conditions of left and right burner.
Optionally, burner 2 may include inner ring and outer ring；Multiple fire output holes are both provided in inner ring and outer ring；Temperature passes
Sensor 11 can be set between the inner ring and outer ring of each burner.
Optionally, gas-cooker can also include glass panel 4.
In embodiments of the present invention, critical piece of the left and right burner as gas-cooker can be installed on pair of glass panel 4
Claim on position, is designed with multiple fire output holes thereon, has more stable flare when can ensure that combustion gas normal combustion, and with firepower
The adjusting of size, burner can keep the flame combustion variation of an opposite linear, it is therefore intended that ensure the embodiment of the present invention
Effective detection to combustion flame temperature and brightness.
In embodiments of the present invention, temperature sensor 11 can be installed between the inner ring and outer ring of burner, and and burner
Fire output hole keeps preset relative distance, it is therefore intended that when burner flame combustion, flame can pass through burner fire hole and temperature sensing
Device comes into full contact with, and in the case of burner flame combustion and extinguishing, the temperature detection value amount of having a greater change of temperature sensor.
In embodiments of the present invention, optical signal component 12 can be detected flame brightness, specifically, optical signal component
12 may include：Light-sensitive element 121（Photosensitive sensor or photosensitive probe）With photosensor signal processing unit；Light-sensitive element is for examining
The brightness of fire detecting flame；Photosensor signal processing unit is used to convert the brightness of flame to level signal, and level signal is issued
Whether kitchen range main control unit 13 carries out operation, abundant to the ignition conditions and flame combustion that judge left and right burner.
In embodiments of the present invention, due to include in natural light the close Detection wavelength such as far infrared spectrum, when burner not
When ignition, kitchen range main control unit 13 can detect the bright data under kitchen environment and detect a reference value, light as brightness
The data that signal component 12 detects subtract the brightness variable quantity that brightness detection a reference value is flame.
Optionally, light-sensitive element 121 can be set to glass panel 4 underneath towards the fire output hole on burner, and and burner
Fire output hole keep pre-determined distance.
Optionally, ignition knob 5 is additionally provided on gas-cooker.
In embodiments of the present invention, light-sensitive element 121 is installed on the bottom of glass panel of stove 4, when detecting flame brightness
The face burner flame burn area at a certain angle of transparent glass panel 4 can be passed through；Its installation site can be located at left and right igniting
It among knob, may be alternatively located at below glass panel or so side, installation site will be far from burner, it is therefore intended that prevents burner from firing
High temperature during burning causes light-sensitive element 121 to fail；In addition light-sensitive element 121 can be divided into left and right two-way sensor, can be same
When the combustion case of left and right burner is detected and is fed back.
In embodiments of the present invention, light-sensitive element 121 may include flame sensor, the hot spoke generated due to flame combustion
The fixed radiation of gas radiation and continuous spectrum with discrete spectrum is penetrated, and flame is mainly by far infrared wavelength light group
At for wavelength in 0.5-2 μ ms, flame is detected in inside using the infrared receiving tube of speciality, can turn the brightness of flame
Turn to the level signal of height variation.
In embodiments of the present invention, ignition knob 5 is as kitchen range igniting and the critical piece of the big minor adjustment of firepower, this hair
Bright embodiment increases gear detection in its function, i.e., (can set fire in the maximum opening position range for adjusting firepower
Power maximum opening position is that knob is rotated by 90 ° angle, and ranging from maximum opening ± 30 ° are that knob rotates 60 ° ~ hexagonal angle degree) increase
Add a detection circuit structure, it is therefore intended that judge whether kitchen range are maximum fire control.The embodiment of the present invention can also be reserved
Detection to flame combustion situation can only judge whether kitchen range damper positions are suitable, and whether flame burns fully.Maximum opening
Clinical significance of detecting be, detect that flame is bright, and judgement is flourishing within the scope of maximum opening, occur under small fire state flourishing probability compared with
It is low, light can not be judged.
In embodiments of the present invention, based on above-mentioned hardware setting, the detailed of kitchen range main control unit 13 is described in detail below
Thin control program.
In embodiments of the present invention, after the power is turned on, kitchen range main control unit 13 enters initialization program to gas-cooker, mainly to temperature
The original operating state of the ignition knob of degree sensor 11, optical signal component 12 and gas-cooker is detected, it is therefore intended that really
Protect each module normal operation；Simultaneity factor configures flame luminance threshold and temperature detection threshold value.
In embodiments of the present invention, kitchen range main control unit 13 judges whether ignition knob has igniting request and state first,
If not lighting a fire request, system does not run flame temperature and brightness detection function then；If kitchen range main control unit 13 detects
There is igniting to ask to ignition knob, then system will start the corresponding temperature of left and right burner according to the ignition conditions of left and right burner respectively
Sensor 11.
In embodiments of the present invention, whether lighting a fire successfully for kitchen range, just I, separately below to it if may include two kinds
Concrete scheme illustrates：
Scheme one
In embodiments of the present invention, in kitchen range igniting detection program, temperature sensor 11 can be used as main detection part, optical signal
Component 12 can be used as auxiliary detection part, can be only when the detection of temperature sensor 11 is unsatisfactory for igniting success conditions, stove
Tool main control unit 13 just starts the detection confirmation that photosensitive sensor carries out brightness values.
Optionally, kitchen range main control unit 13 according to the brightness Ft of the temperature Tt of flame and/or flame to gas-cooker whether point
Igneous work(, which is detected, may include：It is successfully detected according to the temperature Tt of flame to whether gas-cooker lights a fire, and/or in fire
When the temperature Tt of flame is unsatisfactory for preset igniting success conditions, the brightness Ft of control optical signal component detection flame, and according to fire
The brightness Ft of flame is successfully detected to whether gas-cooker lights a fire.
Optionally, preset igniting success conditions may include：The temperature Tt of the flame detected is greater than or equal to default
Temperature threshold Ts.
In embodiments of the present invention, as shown in figure 4, in a detection cycle, kitchen range main control unit 13 detects correspondence respectively
The flame temperature values Tt of left and right burner, and the threshold value that current detection value and system initialization are configured（I.e. above-mentioned temperature threshold
Ts）Carry out comparison operation：
If Tt >=Ts, show that the temperature of flame meets successful condition of lighting a fire, kitchen range main control unit 13 will judge kitchen range point
Igneous work(；
If Tt<Ts then shows that flame temperature is unsatisfactory for successful condition of lighting a fire, and kitchen range main control unit 13 will judge kitchen range igniting
It is abnormal, if temperature is relatively low always and some cycles in it is unchanged, kitchen range main control unit 13 can be determined that kitchen range igniting is lost
It loses, it may be possible to which temperature sensor fault or air source can control the closing of gas control valve 3 at this time without air inlet.
In embodiments of the present invention, if detecting that flame temperature changes, but it is not up to temperature threshold Ts always, then
Kitchen range main control unit 13 can be determined that kitchen range have flame, can start photosensitive sensor at this time and carry out brightness detection, and will work as
The threshold value of preceding detected value and system initialization configuration（I.e. preset luminance threshold Fs）Comparison operation is carried out, whether to confirm igniting
Success：
If Ft >=Fs and Tt<Ts then shows that temperature value is unsatisfactory under the conditions of igniting successfully, and flame brightness satisfaction is lighted a fire successfully
It is required that kitchen range main control unit 13 can be determined that kitchen range are lighted a fire successfully at this time, and control the opening of gas control valve 3, it is ensured that Yong Huzheng
Often culinary art.In such cases and failure that may be present is that temperature sensor thermometric is abnormal, and at this moment kitchen range main control unit 13 can be with
Warning reminding user is detected temperature sensor and burner fire output hole；
If Ft<Fs and Tt<Ts then shows that the ambient humidity, light and temperature of flame is unsatisfactory for successful condition of lighting a fire, kitchen range master control list
Member 13 can be determined that kitchen range loss of ignition, it is understood that there may be the reason of be to have flame, but flame is less than normal or local fire hole blocks,
At this moment kitchen range main control unit 13 can carry out Breakdown Maintenance with warning reminding user to burner fire output hole.
In embodiments of the present invention, temperature threshold Ts can be specific for its according to different application scenarios self-definings
Numerical value is not limited.
In embodiments of the present invention, kitchen range main control unit 13 detects that igniting is abnormal（Or igniting is unsuccessful）In the case of, it can
It is multiple to be carried out continuously（Such as 5）The detection in period confirms, if being satisfied by the feelings that igniting is abnormal or fails in multiple a periods
Condition, then kitchen range main control unit 13 can repair confirmation with warning reminding user to failure, and close gas control valve valve 3, with
Ensure the safe with gas of gas-cooker.
Scheme two
Optionally, whether kitchen range main control unit lights a fire success to gas-cooker according to the brightness Ft of the temperature Tt of flame and/or flame
Be detected including：The temperature Tt of flame at temperature sensor detection burner is controlled simultaneously, and control optical signal component detects flame
Brightness Ft, and be successfully detected according to the brightness Ft of the temperature Tt of flame and flame to whether gas-cooker lights a fire simultaneously.
Optionally, whether kitchen range main control unit simultaneously lights a fire to gas-cooker according to the temperature Tt of flame and the brightness Ft of flame
Successfully be detected including：
When the brightness Ft of the flame detected is greater than or equal to preset luminance threshold Fs, and the temperature Tt of flame is more than or waits
When preset temperature threshold Ts, judgement gas combustion range ignition success；
When the brightness Ft of the flame detected is greater than or equal to luminance threshold Fs, and the temperature Tt of flame is less than temperature threshold Ts,
It is abnormal to judge that igniting occurs in gas-cooker；
When the brightness Ft of the flame detected is less than luminance threshold Fs, and the temperature Tt of flame is greater than or equal to temperature threshold Ts,
It is abnormal to judge that igniting occurs in gas-cooker；
When the brightness Ft of the flame detected is less than luminance threshold Fs, and the temperature Tt of flame is less than temperature threshold Ts, sentence
Determine gas combustion range ignition failure.
In embodiments of the present invention, luminance threshold Fs can be specific for its according to different application scenarios self-definings
Numerical value is not limited.
In embodiments of the present invention, as shown in figure 5, in kitchen range igniting detection program, temperature sensor 11 and optical signal set
12 two kinds of detection parts of part do not have point of primary and secondary, can be actuated for detecting simultaneously.
In embodiments of the present invention, in a detection cycle main control unit detect respectively corresponding burner brightness values Ft and
Flame temperature values Tt, and the threshold value of current detection value and system initialization configuration is subjected to comparison operation：
If Ft >=Fs, and Tt >=Ts, then show that the ambient humidity, light and temperature of flame is satisfied by the successful condition of igniting, kitchen range master control list
Member 13 can be determined that kitchen range are lighted a fire successfully；Kitchen range main control unit 13 can control gas control valve opening, that is, control combustion gas control
Valve keeps attracting state.
If Ft >=Fs, and Tt<Ts then shows that the brightness of flame meets successful condition of lighting a fire, but flame temperature is discontented
The successful condition of foot point fire, kitchen range main control unit 13 can be determined that kitchen range igniting is abnormal, in this case there may be the reason of
It is that temperature sensor fault or fire output hole block；
If Ft<Fs, and Tt >=Ts then show that the temperature of flame meets successful condition of lighting a fire, but foot point is discontented in flame brightness
The successful condition of fire, kitchen range main control unit 13 can be determined that kitchen range igniting is abnormal, in this case that may be present the reason is that light
Dependent sensor failure or flame is less than normal to cause detection abnormal（Cause flame small as admission pressure is small）；
If Ft<Fs, and Tt<Ts then shows that the ambient humidity, light and temperature of flame is unsatisfactory for successful condition of lighting a fire, kitchen range master control list
Member 13 can be determined that kitchen range loss of ignition, in this case that may be present the reason is that kitchen range gas inlet exception, can cut off
Air source prevents gas leakage.
In embodiments of the present invention, kitchen range main control unit 13 detects that igniting is abnormal（Or igniting is unsuccessful）In the case of, it can
It is multiple to be carried out continuously（Such as 5）The detection in period confirms, if being satisfied by the feelings that igniting is abnormal or fails in multiple a periods
Condition, then kitchen range main control unit 13 can repair confirmation with warning reminding user to failure, and close gas control valve valve 3, with
Ensure the safe with gas of gas-cooker.
Optionally, kitchen range main control unit 13 according to the brightness Ft detection flame combustion of flame whether fully may include：
It detects and whether there is pre-set color wave band in flame；Pre-set color wave band includes yellow band；
When, there are when pre-set color wave band, detecting the brightness peak Fp in the pre-set color wave band of flame, and will preset in flame
Brightness peak Fp in wave band is compared with preset luminance threshold Fr；
When the brightness peak Fp in default wave band is greater than or equal to luminance threshold Fr, judge that the brightness of flame is excessive, and judge
Flame combustion is insufficient；When the brightness peak Fp in default wave band is less than luminance threshold Fr, judge that the brightness of flame is normal, and
Judge that flame combustion is abundant.
In embodiments of the present invention, if kitchen range main control unit 13 detects kitchen range and lights a fire successfully, kitchen range main control unit 13
The detection of kitchen range flame combustion situation can be entered, that is, whether abundant detect flame combustion, if having flourishing situation to occur.
In embodiments of the present invention, since gas-cooker is in the case that normal clean-burning, flame should be that blue is presented,
Air source quality, grate height, burner cleannes and the air door size etc. for showing kitchen range are satisfied by clean-burning condition；But
Often gas-cooker is easy to be influenced to cause to burn insufficient situation by any of the above factor in use, and flame fires at this time
Yellow or red will be presented by burning, since yellow and red belong to warm tones, than the indigo plant of cool tone under same firepower size cases
Color flame brightness higher, therefore we can be by detecting whether adequately the flame brightness under real-time combustion case burnt
Detection judgement.
In embodiments of the present invention, optical signal component 12 can be to special spectrum intensity given threshold, i.e. kitchen range most big fire
In the case of power, if flame combustion is insufficient, flame color is in yellow, then the special spectrum intensity that photosensitive sensor detects
The peak value of waveform is higher.After lighting a fire successfully, kitchen range main control unit 13 can detect current flame yellow wavelengths（Photosensitive sensor
The type sensitive to yellow band may be selected）Brightness peak Fp, and by the flourishing threshold of flame of detected value and system initial configuration
Value Fr carries out comparison operation, and when brightness peak Fp is more than default luminance threshold Fr, kitchen range main control unit 13 can be sentenced
Settled preceding flame combustion is insufficient, may remind the user that and carries out air door adjusting or air source inspection etc..
In embodiments of the present invention, the specific comparison interpretative version of kitchen range main control unit 13 can be as described below：
If Fp >=Fr, show that the yellow brightness of flame meets the flourishing condition of flame, kitchen range main control unit 13 can be sentenced
It is insufficient to determine kitchen range flame combustion；
If Fp<Fr then shows that the yellow brightness of flame is unsatisfactory for the flourishing condition of flame, and kitchen range main control unit 13 can be sentenced
It is normal to determine kitchen range flame combustion；
If kitchen range main control unit 13 judges that kitchen range flame combustion is insufficient, continuous multiple periods it can be detected confirmation, such as
Fruit detected value is satisfied by the flourishing condition of flame, then it is abnormal to can be determined that flame combustion exists for kitchen range main control unit 13, and alarms
User is reminded to carry out maintenance test to kitchen range.
Optionally, kitchen range main control unit 13 is additionally operable to be sentenced according to the rotation angle of ignition knob and the brightness Ft of flame
The size of disconnected current firepower.
In embodiments of the present invention, since the judgement of current kitchen range firepower size is substantially the angle rotated according to ignition knob
Degree is judged, but the practical firepower situation of kitchen range is influenced by many factors such as bleed pressure, air door situations, therefore this hair
Bright embodiment can be by combining the operation for detecting ignition knob rotation angle and actual firepower brightness value to judge current kitchen range
Practical firepower size, the data of firepower size can be applied to intelligent control correlation, such as the linkage of cigarette stove, intelligent stove firepower
Adjust etc..
In embodiments of the present invention, ignition knob position detection can be by installing microswitch and electricity on knob structure
Position device is realized, when user's push-turn key, microswitch, which is closed, makes igniter fire, and turn knob opens combustion gas control simultaneously
Valve processed；Knob rotates through certain angle and potentiometer output voltage is changed, and kitchen range main control unit 13 detects accordingly
Voltage value may determine that firepower gear change.
Optionally, kitchen range main control unit 13 is additionally operable to the temperature Tt's of the rotation angle and flame according to ignition knob
Situation of change judges whether accident extinguishing situation.
In embodiments of the present invention, the igniting of cooperation burner and position detection can decide whether there are accident extinguishing situation,
I.e. knob position is not in closing flameout state, but flame temperature is abnormal.
The advantageous effect of the embodiment of the present invention may include：
1, the flame detector system of the gas-cooker of the embodiment of the present invention is provided with burner and gas control valve on gas-cooker；Flame
Detecting system includes temperature sensor, optical signal component and kitchen range main control unit；Temperature sensor is mutual with gas control valve
It is independent；Temperature sensor, the temperature Tt for detecting flame at burner；Optical signal component, the brightness Ft for detecting flame；Stove
Have main control unit, for being successfully detected according to the temperature Tt of flame and/or the brightness Ft of flame to whether gas-cooker lights a fire,
And it is whether abundant according to the brightness Ft detection flame combustions of flame.By the example scheme, temperature sensor is eliminated because of sense
Warm problem is influenced caused by igniting, and accurately detects whether gas-cooker lights a fire and whether flame fully burns.
2, the kitchen range main control unit of the embodiment of the present invention according to the temperature Tt of flame and/or the brightness Ft of flame to gas-cooker
Whether light a fire successfully be detected including：It is successfully detected according to the temperature Tt of flame to whether gas-cooker lights a fire, and/or
When the temperature Tt of flame is unsatisfactory for preset igniting success conditions, the brightness Ft of control optical signal component detection flame, and according to
The brightness Ft of flame is successfully detected to whether gas-cooker lights a fire.By the example scheme, improve about gas-cooker point
Fire whether successful Detection accuracy.
3, the kitchen range main control unit of the embodiment of the present invention according to the temperature Tt of flame and/or the brightness Ft of flame to gas-cooker
Whether light a fire successfully be detected including：The temperature Tt for controlling flame at temperature sensor detection burner simultaneously, controls optical signal
The brightness Ft of component detection flame, and whether lighted a fire success to gas-cooker according to the brightness Ft of the temperature Tt of flame and flame simultaneously
It is detected.The example scheme is detected simultaneously by the brightness Ft of temperature Tt and flame to flame, further improves inspection
Survey accuracy rate.
4, the kitchen range main control unit of the embodiment of the present invention is simultaneously according to the temperature Tt of flame and the brightness Ft of flame to combustion gas
Stove whether light a fire successfully be detected including：When the flame detected brightness Ft be greater than or equal to preset luminance threshold Fs,
And when the temperature Tt of flame is greater than or equal to preset temperature threshold Ts, judgement gas combustion range ignition success；When the fire detected
The brightness Ft of flame is greater than or equal to luminance threshold Fs, when the temperature Tt of flame is less than temperature threshold Ts, judges gas-cooker appearance point
It is fiery abnormal；When the brightness Ft of the flame detected is less than luminance threshold Fs, the temperature Tt of flame is greater than or equal to temperature threshold Ts
When, it is abnormal that igniting occurs in judgement gas-cooker；When the brightness Ft of the flame detected is less than luminance threshold Fs, and the temperature of flame
When Tt is less than temperature threshold Ts, judgement gas combustion range ignition failure.The example scheme is to detect gas-cooker by threshold decision
No to light a fire successfully, scheme is simple, easy to implement, and accuracy rate is high.
5, the kitchen range main control unit of the embodiment of the present invention according to the brightness Ft detection flame combustion of flame whether fully include：
It detects and whether there is pre-set color wave band in flame；Pre-set color wave band includes yellow band；When there are pre-set colors in flame
When wave band, detect the brightness peak Fp in the pre-set color wave band of flame, and by default wave band brightness peak Fp with it is default
Luminance threshold Fr compare；When the brightness peak Fp in default wave band is greater than or equal to luminance threshold Fr, flame is judged
Brightness is excessive, and judges that flame combustion is insufficient；When the brightness peak Fp in default wave band is less than luminance threshold Fr, judgement fire
The brightness of flame is normal, and judges that flame combustion is abundant.The example scheme is determined by detecting the brightness of yellow band in flame
Whether flame combustion is abundant, and Detection accuracy is high.
6, the gas-cooker of the embodiment of the present invention includes glass panel；Optical signal component includes：Light-sensitive element and photosensor signal
Processing unit；Light-sensitive element is used to detect the brightness of flame；Photosensor signal processing unit is used to convert the brightness of flame to electricity
Ordinary mail number；Light-sensitive element is set to glass panel underneath towards the fire output hole on burner, and keeps default with the fire output hole of burner
Distance.The example scheme may insure effective detection to combustion flame brightness, and prevent the high temperature during flame combustion
Light-sensitive element is caused to fail.
7, the burner of the embodiment of the present invention is one or more；Burner includes inner ring and outer ring；It is all provided in inner ring and outer ring
It is equipped with multiple fire output holes；Temperature sensor is set between the inner ring and outer ring of each burner.The example scheme may insure
Flame can be come into full contact with by fire output hole and temperature sensor, realize effective detection to combustion flame temperature.
8, it is additionally provided with ignition knob on the gas-cooker of the embodiment of the present invention；Kitchen range main control unit, is additionally operable to according to igniting
The rotation angle of knob and the brightness Ft of flame judge the size of current firepower.The example scheme improves firepower size
Accuracy of detection.
It will appreciated by the skilled person that whole or certain steps in method disclosed hereinabove, system, dress
Function module/unit in setting may be implemented as software, firmware, hardware and its combination appropriate.In hardware embodiment,
Division between the function module/unit referred in the above description not necessarily corresponds to the division of physical assemblies；For example, one
Physical assemblies can have multiple functions or a function or step that can be executed by several physical assemblies cooperations.Certain groups
Part or all components may be implemented as by processor, such as the software that digital signal processor or microprocessor execute, or by
It is embodied as hardware, or is implemented as integrated circuit, such as application-specific integrated circuit.Such software can be distributed in computer-readable
On medium, computer-readable medium may include computer storage media（Or non-transitory medium）And communication media（Or temporarily
Property medium）.As known to a person of ordinary skill in the art, term computer storage medium is included in for storing information（Such as
Computer-readable instruction, data structure, program module or other data）Any method or technique in the volatibility implemented and non-
Volatibility, removable and nonremovable medium.Computer storage media include but not limited to RAM, ROM, EEPROM, flash memory or
Other memory technologies, CD-ROM, digital versatile disc（DVD）Or other optical disc storages, magnetic holder, tape, disk storage or its
His magnetic memory apparatus or any other medium that can be used for storing desired information and can be accessed by a computer.
In addition, known to a person of ordinary skill in the art be, communication media generally comprises computer-readable instruction, data structure, program
Other data in the modulated data signal of module or such as carrier wave or other transmission mechanisms etc, and may include any letter
Cease delivery media.
Claims (10)
1. a kind of flame detector system of gas-cooker, burner and gas control valve are provided on the gas-cooker；It is characterized in that,
The flame detector system includes temperature sensor, optical signal component and kitchen range main control unit；The temperature sensor and institute
It is independent mutually to state gas control valve；
The temperature sensor, the temperature Tt for detecting flame at the burner；
The optical signal component, the brightness Ft for detecting the flame；
The kitchen range main control unit is used for according to the temperature Tt of the flame and/or the brightness Ft of the flame to the combustion gas
Whether whether stove, which lights a fire, is successfully detected, and abundant according to the brightness Ft detection flame combustions of the flame.
2. the flame detector system of gas-cooker according to claim 1, which is characterized in that the kitchen range main control unit according to
The temperature Tt of the flame and/or brightness Ft of the flame whether light a fire to the gas-cooker be successfully detected including：Root
Successfully be detected according to the temperature Tt of the flame to whether the gas-cooker lights a fire, and/or the flame temperature Tt not
When meeting preset igniting success conditions, the brightness Ft that the optical signal component detects the flame is controlled, and according to the fire
The brightness Ft of flame is successfully detected to whether the gas-cooker lights a fire.
3. the flame detector system of gas-cooker according to claim 2, which is characterized in that the preset successfully item of lighting a fire
Part includes：The temperature Tt of the flame detected is greater than or equal to preset temperature threshold Ts.
4. the flame detector system of gas-cooker according to claim 1, which is characterized in that the kitchen range main control unit according to
The temperature Tt of the flame and/or brightness Ft of the flame whether light a fire to the gas-cooker be successfully detected including：Together
When control the temperature Tt that the temperature sensor detects flame at the burner, control the optical signal component and detect the flame
Brightness Ft, and whether lighted a fire success to the gas-cooker according to the brightness Ft of the temperature Tt of the flame and the flame simultaneously
It is detected.
5. the flame detector system of gas-cooker according to claim 4, which is characterized in that the kitchen range main control unit is simultaneously
Whether lighted a fire to the gas-cooker according to the brightness Ft of the temperature Tt of the flame and the flame be successfully detected including：
When the brightness Ft of the flame detected is greater than or equal to preset luminance threshold Fs, and the temperature Tt of the flame
When more than or equal to preset temperature threshold Ts, the gas combustion range ignition success is judged；
When the brightness Ft of the flame detected is greater than or equal to the luminance threshold Fs, the temperature Tt of the flame is less than institute
When stating temperature threshold Ts, it is abnormal to judge that igniting occurs in the gas-cooker；
When the brightness Ft of the flame detected is less than the luminance threshold Fs, the temperature Tt of the flame is greater than or equal to institute
When stating temperature threshold Ts, it is abnormal to judge that igniting occurs in the gas-cooker；
When the brightness Ft of the flame detected is less than the luminance threshold Fs, and the temperature Tt of the flame be less than it is described
When temperature threshold Ts, the gas combustion range ignition failure is judged.
6. the flame detector system of gas-cooker according to claim 1, which is characterized in that the kitchen range main control unit according to
The brightness Ft detection flame combustion of the flame whether fully include：
It detects and whether there is pre-set color wave band in the flame；The pre-set color wave band includes yellow band；
When, there are when the pre-set color wave band, detecting the brightness peak in the pre-set color wave band of the flame in the flame
Fp, and the brightness peak Fp in the default wave band is compared with preset luminance threshold Fr；
When the brightness peak Fp in the default wave band is greater than or equal to the luminance threshold Fr, the brightness of the flame is judged
It is excessive, and judge that flame combustion is insufficient；When the brightness peak Fp in the default wave band is less than the luminance threshold Fr, sentence
The brightness of the fixed flame is normal, and judges that flame combustion is abundant.
7. the flame detector system of the gas-cooker according to claim 1-6 any one, which is characterized in that the gas-cooker
Including glass panel；The optical signal component includes：Light-sensitive element and photosensor signal processing unit；The light-sensitive element is for examining
Survey the brightness of the flame；The photosensor signal processing unit is used to convert the brightness of the flame to level signal；
The light-sensitive element is set to the glass panel underneath towards the fire output hole on the burner, and goes out with the burner
Fire hole keeps pre-determined distance.
8. the flame detector system of the gas-cooker according to claim 1-6 any one, which is characterized in that the burner is
It is one or more；The burner includes inner ring and outer ring；Multiple fire output holes are both provided in the inner ring and outer ring；
The temperature sensor is set between the inner ring of each burner and the outer ring.
9. the flame detector system of the gas-cooker according to claim 1-6 any one, which is characterized in that the gas-cooker
On be additionally provided with ignition knob；
The kitchen range main control unit is additionally operable to be judged according to the rotation angle of the ignition knob and the brightness Ft of the flame
The size of current firepower.
10. the flame detector system of gas-cooker according to claim 9, which is characterized in that the kitchen range main control unit, also
Situation of change for the temperature Tt according to the rotation angle and flame of the ignition knob judges whether accident
Misfiring condition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810498383.8A CN108662622A (en) | 2018-05-23 | 2018-05-23 | A kind of flame detector system of gas-cooker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810498383.8A CN108662622A (en) | 2018-05-23 | 2018-05-23 | A kind of flame detector system of gas-cooker |
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| Publication Number | Publication Date |
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| CN108662622A true CN108662622A (en) | 2018-10-16 |
Family
ID=63776545
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810498383.8A Pending CN108662622A (en) | 2018-05-23 | 2018-05-23 | A kind of flame detector system of gas-cooker |
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| CN109345561A (en) * | 2018-11-30 | 2019-02-15 | 王银仙 | Combustion state real-time monitoring platform |
| CN109724117A (en) * | 2019-01-24 | 2019-05-07 | 乐清市九洲电子有限公司 | The regeneration ignition system of high security AC system kitchen range |
| CN110500617A (en) * | 2019-08-27 | 2019-11-26 | 珠海格力电器股份有限公司 | Equipment ignition determination method and device and electronic gas equipment |
| CN110500618A (en) * | 2019-08-27 | 2019-11-26 | 珠海格力电器股份有限公司 | Equipment ignition determination method and device and electronic gas equipment |
| CN110613316A (en) * | 2019-09-26 | 2019-12-27 | 宁波方太厨具有限公司 | Cooking device and control method thereof |
| CN111649356A (en) * | 2020-06-10 | 2020-09-11 | 绍兴市升博厨房电器有限公司 | Gas stove working method and gas stove |
| CN112032769A (en) * | 2020-09-27 | 2020-12-04 | 珠海格力电器股份有限公司 | A gas stove, a control method and a control device for the gas stove |
| WO2021031703A1 (en) * | 2019-08-19 | 2021-02-25 | 珠海格力电器股份有限公司 | Pulse ignition apparatus, gas appliance, and ignition control method and system thereof |
| CN113237095A (en) * | 2021-03-09 | 2021-08-10 | 洛阳瑞昌环境工程有限公司 | Flame detection device, flame detection method and combustion system |
| CN113405128A (en) * | 2021-05-11 | 2021-09-17 | 广东美的白色家电技术创新中心有限公司 | Fire control method of stove and stove |
| CN114088867A (en) * | 2021-11-17 | 2022-02-25 | 杭州仰仪科技有限公司 | Automatic detection device and method for combustion state of open heating furnace |
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| CN109724117A (en) * | 2019-01-24 | 2019-05-07 | 乐清市九洲电子有限公司 | The regeneration ignition system of high security AC system kitchen range |
| WO2021031703A1 (en) * | 2019-08-19 | 2021-02-25 | 珠海格力电器股份有限公司 | Pulse ignition apparatus, gas appliance, and ignition control method and system thereof |
| CN110500617A (en) * | 2019-08-27 | 2019-11-26 | 珠海格力电器股份有限公司 | Equipment ignition determination method and device and electronic gas equipment |
| CN110500618A (en) * | 2019-08-27 | 2019-11-26 | 珠海格力电器股份有限公司 | Equipment ignition determination method and device and electronic gas equipment |
| CN110613316A (en) * | 2019-09-26 | 2019-12-27 | 宁波方太厨具有限公司 | Cooking device and control method thereof |
| CN111649356A (en) * | 2020-06-10 | 2020-09-11 | 绍兴市升博厨房电器有限公司 | Gas stove working method and gas stove |
| CN112032769A (en) * | 2020-09-27 | 2020-12-04 | 珠海格力电器股份有限公司 | A gas stove, a control method and a control device for the gas stove |
| CN113237095A (en) * | 2021-03-09 | 2021-08-10 | 洛阳瑞昌环境工程有限公司 | Flame detection device, flame detection method and combustion system |
| CN113237095B (en) * | 2021-03-09 | 2022-07-22 | 洛阳瑞昌环境工程有限公司 | Ignition device, flame detection method and combustion system |
| CN113405128A (en) * | 2021-05-11 | 2021-09-17 | 广东美的白色家电技术创新中心有限公司 | Fire control method of stove and stove |
| CN113405128B (en) * | 2021-05-11 | 2023-06-16 | 广东美的白色家电技术创新中心有限公司 | Fire control method of kitchen range and kitchen range |
| CN114088867A (en) * | 2021-11-17 | 2022-02-25 | 杭州仰仪科技有限公司 | Automatic detection device and method for combustion state of open heating furnace |
| CN114088867B (en) * | 2021-11-17 | 2024-02-23 | 杭州仰仪科技有限公司 | Automatic detection device and method for combustion state of open heating furnace |
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