CN109140531A - A kind of gas-cooker anti-dry control method - Google Patents
A kind of gas-cooker anti-dry control method Download PDFInfo
- Publication number
- CN109140531A CN109140531A CN201811001554.8A CN201811001554A CN109140531A CN 109140531 A CN109140531 A CN 109140531A CN 201811001554 A CN201811001554 A CN 201811001554A CN 109140531 A CN109140531 A CN 109140531A
- Authority
- CN
- China
- Prior art keywords
- gas
- cooker
- dry
- temperature
- pot body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
Abstract
The invention discloses a kind of gas-cooker anti-dry control methods, step include: to schedule interval of delta t successively acquire the temperature of pot body on gas-cooker and be recorded as TN, N is the positive integer greater than 0, as TN > T0, judge that pot body reaches dry-fire condition and controls the combustion gas stopping burning of gas-cooker, as TN < T ', judge that pot body is not up to dry-fire condition and keeps the state of gas-cooker, as T ' < TN≤T0, the single order for calculating the temperature TN leads dTN/dt and second order leads d2TN/dt2, and judge dTN/dt and d2TN/dt2 whether and meanwhile meet following requirements: dTN/dt > δ 1, d2TN/dt2 > δ 2, wherein, δ 1 >=0 and δ 2 >=0, if meeting, judge that pot body reaches dry-fire condition and controls the combustion gas of gas-cooker to stop It only burns, if not satisfied, judging that pot body is not up to dry-fire condition and keeps the state of gas-cooker.Gas-cooker anti-dry control method can judge the generation of dry combustion method effectively, in time according to the present invention, avoid dry combustion method bring be burned even enamelware pot.
Description
Technical field
The present invention relates to gas-cooker technical fields, more particularly, to a kind of gas-cooker anti-dry control method.
Background technique
User, may be due to various emergency situations when being acted using gas-cooker cooking, Baoshang or the other culinary arts of progress
And kitchen away from keyboard of having to, Tathagata guest, it answers the call, receives express delivery etc., and user often forgets to close due to making off
Gas-cooker is closed, the dish probably burnt carbonization in pot is caused.More serious, pot may be burnt, the carbon in pot
Change dish to be ignited with fiery contact, to cause fire.Therefore, anti-dry system is added in gas-cooker for avoiding above-mentioned feelings
Condition is of great significance.
But anti-dry system in the related technology can not efficiently and accurately realize the detection of dry-fire condition, often
There are some error detections, for example, when not up to dry-fire condition erroneous judgement be dry-fire condition and close fire, cause dish cannot
It is cooked；For another example still there are no judge to cause dish to be burnt for dry-fire condition when having reached dry-fire condition
Paste or pot body are burned.The anti-dry system of gas-cooker is still further improved.
Summary of the invention
The present invention provides a kind of gas-cooker anti-dry control method to overcome the deficiencies in the prior art described above.
Using following scheme:
A kind of gas-cooker anti-dry control method, comprising the following steps:
Interval of delta t successively acquires the temperature for the pot body being located on gas-cooker and is recorded as TN to schedule, N be greater than
0 positive integer；
After temperature acquisition of every progress, temperature TN is compared with predetermined temperature T0 and T1,
As TN > T0, then judge that pot body reaches dry-fire condition and controls the combustion gas stopping burning of gas-cooker,
As TN < T1, then judge that pot body is not up to dry-fire condition and keeps the state of gas-cooker, and reaching pre- timing
Between continue temperature acquisition after interval of delta t,
As T1 < TN≤T0, the single order for calculating the temperature TN leads dTN/dt and second order leads d2TN/dt2, and judges
Whether dTN/dt and d2TN/dt2 meets following requirements simultaneously:
DTN/dt > δ 1, d2TN/dt2 > δ 2, wherein δ 1 >=0 and δ 2 >=0,
If satisfied, then judging that pot body reaches dry-fire condition and controls the combustion gas stopping burning of gas-cooker, if not satisfied, then sentencing
Disconnected pot body is not up to dry-fire condition and keeps the state of gas-cooker, and continues temperature after reaching predetermined time interval Δ t
Acquisition.
Preferred embodiment, value of the Δ t in dTN/dt < δ 1 are greater than Δ t in dTN/dt > δ 1 and d2TN/dt2 < δ 2
Value.
Beneficial effects of the present invention: gas-cooker anti-dry control method according to an embodiment of the present invention utilizes the temperature of various dimensions
Information is spent, the generation of dry combustion method can be avoided effectively, in time or stop, avoiding dry combustion method bring from being burned or even enamelware pot, is also prevented from
The generation of fire, safety are promoted.
Detailed description of the invention
The temperature of pot body changes over time curve synoptic diagram when Fig. 1 is culinary art；
Fig. 2 is the flow chart of gas-cooker anti-dry control method according to an embodiment of the present invention；
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention, ability
The those of ordinary skill in domain can carry out a variety of changes to these embodiments without departing from the principle and spirit of the present invention
Change, modification, replacement and variant, the scope of the present invention is defined by the claims and their equivalents.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.In addition, in the description of the present invention, unless
It is otherwise noted, the meaning of " plurality " is two or more.
Below with reference to the accompanying drawings gas-cooker anti-dry control method according to an embodiment of the present invention is described.
Referring to shown in Fig. 2, gas-cooker anti-dry control method according to an embodiment of the invention may include following step
It is rapid:
Interval of delta t successively acquires the temperature for the pot body being located on gas-cooker and is recorded as TN to schedule, wherein N
For the positive integer greater than 0.
After temperature acquisition of every progress, the temperature TN recorded and predetermined temperature T0 and T ' are compared.Wherein,
Predetermined temperature T0 is the temperature determined by experimental method, and T0 can provide an absolute safeguard protection, i.e., in the temperature of pot body
When degree reaches T0, pot body must reach dry-fire condition.Predetermined temperature T ' be greater than the temperature of room temperature lower pot body and be less than T0 certain
A temperature, the acquisition of the temperature of the pot body on gas-cooker can be since a certain moment of the temperature of pot body less than T ', such as can
It is acquired when being cooked since just opening gas-cooker, pot body is centainly not up to dry-fire condition at this time, with the temperature of pot body
The acquisition of degree and record, when the temperature of pot body reaches T ', the historical temperature formation temperature data sequence of acquisition T:Ti, i=1,
N-1 }, the detection of extraneous data can be reduced in this way, promote detection efficiency.
As TN > T0, then it may determine that pot body reaches dry-fire condition, and the combustion gas for controlling gas-cooker stops burning.
As TN < T ', then judge that pot body is not up to dry-fire condition and keeps the state of gas-cooker, and reaching pre- timing
Between continue temperature acquisition after interval of delta t.
As T ' < TN≤T0, historical temperature data sequence { T:Ti, i=1, N-1 } collected before needing to call, example
Such as, it can be estimated with three acquired recently or above temperature data by calculus of finite differences, the single order of temperature TN is calculated
Lead dTN/dt and second order lead d2TN/dt2, and judge dTN/dt and d2TN/dt2 whether and meanwhile meet following requirements:
DTN/dt > δ 1, d2TN/dt2 > δ 2, wherein δ 1 >=0 and δ 2 >=0,
The meaning of above formula is that the single order of temperature is led greater than some predetermined value delta 1, and second order is led greater than some predetermined value delta 2,
Physical significance is referred to II stage and III stage when culinary art shown in Fig. 1 in the three phases of the variation of the temperature of pot body, temperature
Degree slowly increases in the II stage, and the single order of temperature leads almost 0.When temperature enters the III stage, temperature is significantly increased, temperature
The single order of degree leads increase, i.e. δ 1 >=0, for example, in some specific examples of the invention, the value of δ 1 can be respectively 0.1,
0.3,0.5 and 1 etc..
In addition, the ascending rate of temperature is also getting faster, according to the actual situation, the middle and later periods of the temperature of pot body in the II stage
The single order that may also occur meeting simultaneously temperature, which is led, leads with second order while for positive value, and temperature enters pot body just meeting after the III stage
Reach dry-fire condition, therefore, δ 2 >=0 can be set, for example, in some specific examples of the invention, the value of δ 2 can divide
It Wei 0.5,1,1.5 and 2 etc..
If meeting dTN/dt > δ 1 and d2TN/dt2 > δ 2 simultaneously, it may determine that pot body reaches dry-fire condition, and control
The combustion gas of gas-cooker stops burning.
If not meeting dTN/dt > δ 1 and d2TN/dt2 > δ 2 simultaneously, in other words, meeting dTN/dt≤δ 1 and d2TN/
When at least one in dt2≤δ 2, then it may determine that pot body is not up to dry-fire condition and keeps the state of gas-cooker, and reaching
Continue temperature acquisition after predetermined time interval Δ t.
Gas-cooker anti-dry control method according to an embodiment of the present invention can use temperature, temperature gradient and temperature second order
The temperature information of various dimensions is led to judge whether pot body is in dry-fire condition, is carried out with simple in the related technology using temperature threshold
The mode of judgement is compared, present inventor creatively obtained from the variation of temperature of boiler it is multiple can be more accurately anti-
The parameter for answering the temperature change of pot body judges the dry-fire condition of pot body jointly by multiple parameters, can accurately and comprehensively
Judged, can avoid effectively, in time or stop the generation of dry combustion method, avoid dry combustion method bring be burned even enamelware pot, also prevent
The only generation of fire, safety are promoted.
Judgement for dry-fire condition, the frequency for acquiring the temperature of pot body is critically important parameter, and the frequency of acquisition is too low,
Then the single order of the temperature of pot body leads that the calculating led with second order is nonsensical, not can correctly reflect current temperature gradient, and then not
It can correctly judge whether pot body reaches dry-fire condition.If the frequency of acquisition is too high, power consumption is excessive, causes unnecessary wave
Take.
In some embodiments of the invention, Δ t can value in dTN/dt < δ 1 be greater than Δ t in dTN/dt > δ 1
And value when d2TN/dt2 < δ 2.In other words, when the temperature of pot body is lower, i.e. when dTN/dt is less than predetermined value delta 1, acquisition
The frequency of the temperature of pot body is lower, increases with the temperature of pot body, when dTN/dt start to be greater than predetermined value delta 1 and pot body it is not up to dry
When burning state, the frequency of the temperature of acquisition pot body is increased, to obtain the value that the second order of more accurate temperature is led, thus accurately sentencing
A balance is obtained between the dry-fire condition and low power consumption of disconnected pot body.
The value range for acquiring the time interval Δ t of the temperature of pot body needs to be determined according to experiment, for different pots
Also different, for example, an example according to the present invention, in dTN/dt < δ 1, the value of Δ t is 120s, in dTN/dt > δ
When 1 and d2TN/dt2 < δ 2, the value of Δ t is 30s.
Claims (2)
1. a kind of gas-cooker anti-dry control method, which comprises the following steps:
Interval of delta t successively acquires the temperature for the pot body being located on gas-cooker and is recorded as TN to schedule, and N is greater than 0
Positive integer；
After temperature acquisition of every progress, temperature TN is compared with predetermined temperature T0 and T1,
As TN > T0, then judge that pot body reaches dry-fire condition and controls the combustion gas stopping burning of gas-cooker,
As TN < T1, then judge that pot body is not up to dry-fire condition and keeps the state of gas-cooker, and between reaching the predetermined time
Continue temperature acquisition after Δ t,
As T1 < TN≤T0, the single order for calculating the temperature TN leads dTN/dt and second order leads d2TN/dt2, and judges dTN/dt
Whether meet following requirements simultaneously with d2TN/dt2:
DTN/dt > δ 1, d2TN/dt2 > δ 2, wherein δ 1 >=0 and δ 2 >=0,
If satisfied, then judging that pot body reaches dry-fire condition and controls the combustion gas stopping burning of gas-cooker, if not satisfied, then judging pot
Body is not up to dry-fire condition and keeps the state of gas-cooker, and continues temperature acquisition after reaching predetermined time interval Δ t.
2. gas-cooker anti-dry control method according to claim 1, which is characterized in that Δ t is in dTN/dt < δ 1
Value is greater than value of the Δ t in dTN/dt > δ 1 and d2TN/dt2 < δ 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811001554.8A CN109140531A (en) | 2018-08-30 | 2018-08-30 | A kind of gas-cooker anti-dry control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811001554.8A CN109140531A (en) | 2018-08-30 | 2018-08-30 | A kind of gas-cooker anti-dry control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109140531A true CN109140531A (en) | 2019-01-04 |
Family
ID=64829375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811001554.8A Pending CN109140531A (en) | 2018-08-30 | 2018-08-30 | A kind of gas-cooker anti-dry control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109140531A (en) |
-
2018
- 2018-08-30 CN CN201811001554.8A patent/CN109140531A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107477622B (en) | Gas-cooker anti-dry control method, anti-dry control device for gas stove and gas-cooker | |
| CN109044113A (en) | For detecting method, processor, device and the storage medium of cooking apparatus dry combustion method | |
| CN109798551B (en) | Stove and dry burning prevention control method and device thereof | |
| CN105021644B (en) | Detection method and detecting system for steam heater | |
| US20090127248A1 (en) | Heating cooker | |
| CN109237540B (en) | Dry burning prevention control method and dry burning prevention system | |
| CN106091031A (en) | A kind of judge the method and system of water boiling in water boiling device | |
| CN201987261U (en) | Electric heating pan capable of detecting watering status after dry burning | |
| CN112558501A (en) | Gas cooking system, control method thereof, and computer-readable storage medium | |
| WO2021204235A1 (en) | Fire turn-off detection method and apparatus for cooking device, and range hood and storage medium | |
| CN109140531A (en) | A kind of gas-cooker anti-dry control method | |
| JP5865144B2 (en) | Stove with cooking function | |
| KR100498115B1 (en) | cooking device | |
| JPS58178123A (en) | Temperature controller for cooking | |
| CN106308465A (en) | Method for recognizing cooking type of electric cooker and electric cooker | |
| CN111121100B (en) | Method for preventing fried dish from being burnt | |
| CN109237527B (en) | Dry burning prevention control method and dry burning prevention system | |
| CN110848759B (en) | Control method and device for preventing dry heating of heating equipment, heating equipment and storage medium | |
| CN109798552A (en) | A kind of kitchen range are from pot determination method and device | |
| CN112484087B (en) | Cold state identification method of kitchen range and kitchen range thereof | |
| JPS58160738A (en) | Temperature controller for cooking | |
| CN110859516B (en) | Cooking appliance and control method thereof | |
| CN109237546B (en) | Dry burning prevention control method and dry burning prevention system | |
| CN109307294A (en) | A kind of gas-cooker of anti-dry | |
| CN109114601A (en) | A kind of anti-dry control device for gas stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190104 |