CN114251678A - Control method of gas stove and gas stove - Google Patents
Control method of gas stove and gas stove Download PDFInfo
- Publication number
- CN114251678A CN114251678A CN202011001904.8A CN202011001904A CN114251678A CN 114251678 A CN114251678 A CN 114251678A CN 202011001904 A CN202011001904 A CN 202011001904A CN 114251678 A CN114251678 A CN 114251678A
- Authority
- CN
- China
- Prior art keywords
- gas
- state
- thermocouple
- control method
- gas flow
- 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
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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
Abstract
The invention discloses a control method of a gas stove and the gas stove, belonging to the technical field of kitchen electricity, wherein the control method of the gas stove comprises the following steps: detecting the voltage of a thermocouple at the burner and the gas flow in a ventilation pipeline, judging the state of the burner according to the voltage value of the thermocouple, and if the gas flow is greater than 0, the burner is in a gas leakage state under a flameout state, and a control system closes an electromagnetic valve at the burner, closes an air inlet valve in the ventilation pipeline and triggers an alarm device. The gas stove is controlled by the control method of the gas stove. The gas flow is more than 0, indicating that the gas leaks, and the control system closes the electromagnetic valve and the air inlet valve, so that the aim of double protection is fulfilled, and the gas leakage protection device is more reliable and safe; through the mode that detects the gas flow, detect at the air feed source of gas, do not have the hysteresis defect, can detect the gas flow in the moment that the gas leaked, control system takes the leak protection measure initiatively, through alarm device suggestion user, stops the potential safety hazard.
Description
Technical Field
The invention relates to the technical field of kitchen electricity, in particular to a gas stove and a control method thereof.
Background
Along with the popularization of gas-cooker, the safety problem receives more and more attention, especially when the family uses the middle-aged and old people of gas-cooker, leaks insensitivity to gas, has the potential safety hazard.
The existing gas stove is provided with a flameout protection device, when the gas stove is suddenly flamed out, the electromagnetic valve loses potential, and the valve body is automatically closed, so that the valve body is prevented from automatically conveying gas to the burner. However, the solenoid valve merely closes the valve body to supply gas, and cannot detect whether there is a leak in the pipeline for delivering gas.
Therefore, a gas range is generally provided with an alarm device that gives an alarm when the gas concentration in a room exceeds a set value. But the mode of detecting indoor gas concentration lags behind relatively, when the gas is revealed to certain degree, just can detect gas concentration, very easily arouses the conflagration this moment, inhales the human body moreover and causes the harm to health. Some users hear the alarm sound and do not know what operation is carried out next step, the gas stove cannot automatically implement the leakage-proof measure, and the potential safety hazard still exists.
Disclosure of Invention
The invention aims to provide a control method of a gas stove and the gas stove, and aims to solve the technical problems that in the prior art, gas detection is delayed, and a leakage-proof measure cannot be automatically implemented.
As the conception, the technical scheme adopted by the invention is as follows:
a control method of a gas stove comprises the following steps: detecting the voltage of a thermocouple at the burner and the gas flow in a ventilation pipeline, judging the state of the burner according to the voltage value of the thermocouple, and if the gas flow is greater than 0, the burner is in a gas leakage state under a flameout state, and a control system closes an electromagnetic valve at the burner, closes an air inlet valve in the ventilation pipeline and triggers an alarm device.
And if the voltage value of the thermocouple is smaller than the first set value, judging that the thermocouple is in a flameout state.
And when the rotary valve is in an open state, if the voltage of the thermocouple is less than a first set value, the thermocouple is in an abnormal flameout state, and the control system closes the electromagnetic valve.
And under the abnormal flameout state, if the gas flow is greater than 0, the gas leakage state is achieved, and the control system closes the gas inlet valve and triggers the alarm device.
If the voltage of the thermocouple is higher than a second set value, the thermocouple is in a fire state, and the control system closes the electromagnetic valve and the air inlet valve and triggers the alarm device.
Wherein, in the ignition state, if the gas flow is equal to 0, the alarm device sends out first alarm information; and in the ignition state, if the gas flow is more than 0, the alarm device sends out second alarm information.
And if the voltage value of the thermocouple is greater than the first set value and the trend is stable, and the gas flow is greater than 0 and the trend is stable, the thermocouple is in a normal ignition state.
Under the normal ignition state, if the rotary valve is switched from the open state to the closed state, the gas flow is greater than 0, and the duration is greater than a first set duration, the rotary valve is in a gas leakage state, and the control system closes the electromagnetic valve, closes the air inlet valve and triggers the alarm device.
If the rotary valve is switched from the closed state to the open state, the gas flow is greater than 0, the duration is greater than a second set duration, the voltage value of the thermocouple is less than a first set value, the rotary valve is in an ignition failure state, and the control system closes the electromagnetic valve, closes the air inlet valve and triggers the alarm device.
A gas stove is controlled by the control method of the gas stove.
The invention has the beneficial effects that:
the control method of the gas stove provided by the invention detects the voltage of the thermocouple at the burner and the gas flow in the ventilation pipeline, judges the state of the burner according to the voltage value of the thermocouple, under the flameout state, if the gas flow is more than 0, the gas is leaked, and the control system closes the electromagnetic valve at the burner, closes the gas inlet valve in the ventilation pipeline and triggers the alarm device, so as to achieve the purpose of double protection, thoroughly cut off the gas inlet, and be more reliable and safer; through the mode that detects the gas flow, detect at the air feed source of gas, do not have the hysteresis defect, can detect the gas flow in the moment that the gas leaked, control system takes the leak protection measure initiatively, through alarm device suggestion user, stops the potential safety hazard.
Drawings
Fig. 1 is a schematic view of a gas range provided in an embodiment of the present invention;
FIG. 2 is a first flowchart of a control method of a gas stove according to an embodiment of the present invention;
FIG. 3 is a second flowchart of a control method of a gas range according to an embodiment of the present invention;
fig. 4 is a third flowchart of a control method of a gas stove according to an embodiment of the present invention.
In the figure:
1. a vent line; 2. a furnace end; 3. an intake valve; 4. an electromagnetic valve; 5. a flow meter; 6. a voltmeter; 7. and (5) controlling the system.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 1, the embodiment of the invention provides a gas stove, which includes a ventilation pipeline 1 and a stove head 2, wherein the ventilation pipeline 1 is used for providing gas to the stove head 2, an air inlet end of the ventilation pipeline 1 is provided with an air inlet valve 3, an air outlet end of the ventilation pipeline 1 is provided with an electromagnetic valve 4, and the gas reaches the stove head 2 through the electromagnetic valve 4. The furnace end 2 is provided with a thermocouple and an ignition porcelain needle to realize the ignition function, and the thermocouple and the ignition porcelain needle are the existing structures of the gas stove.
A flowmeter 5 is arranged on the ventilation pipeline 1 and used for detecting the gas flow in the ventilation pipeline 1; the burner 2 is provided with the voltmeter 6 which can detect the electromotive force of the thermocouple and the ignition ceramic pin to obtain a voltage value, and the number of the voltmeter 6 is not limited herein. When the temperature rises, the electromotive force of the thermocouple increases, and when the ignition porcelain pin discharges, the electromotive force of the ignition porcelain pin is greater than 0.
The gas stove also comprises an ignition switch which is a rotary valve generally used for manual operation of a user, and the rotary valve is rotated to control the discharge of an ignition ceramic needle and the conduction of gas. A position sensor is arranged in the gas stove and can detect the position, namely the rotating angle of the rotary valve so as to judge whether the rotary valve is in an opening state or a closing state.
The gas stove further comprises a control system 7, the flowmeter 5, the voltmeter 6, the electromagnetic valve 4, the air inlet valve 3 and the rotary valve are electrically connected with the control system 7, the control system 7 can receive detection information of the flowmeter 5 and the voltmeter 6, can also detect the opening and closing states of the electromagnetic valve 4, the air inlet valve 3 and the rotary valve, and can also control the opening and closing of the electromagnetic valve 4 and the air inlet valve 3.
The gas-cooker still includes the voice broadcast ware, and the voice broadcast ware is connected with control system 7 electricity, and the content such as current state, the fault information and the operation that needs the user to go on of gas-cooker can be broadcast to the voice broadcast ware.
Optionally, the gas stove further includes a display screen, the display screen is electrically connected to the control system 7, and the display screen can display the current state of the gas stove, fault information, and contents such as operations required by a user. The display content of the display screen can be patterns and characters.
The gas stove also comprises an alarm device, the alarm device is electrically connected with the control system 7, and the alarm device can give an alarm in the form of sound and/or light.
The control system 7 can be in wireless connection with the mobile terminal to send the relevant information of the gas stove to the mobile terminal for the user to check.
The embodiment of the invention also provides a control method of the gas stove, which is used for detecting and controlling the states of ignition, normal fire shutting, abnormal flameout, ignition and the like of the gas stove.
Referring to fig. 2, if the rotary valve is in the closed state, it indicates that the gas range is shut down. And if the gas flow is equal to 0 and the voltage value of the thermocouple is smaller than a first set value, the gas is in a normal fire-off state. The first set value may be 0.8mV, or may be set according to actual conditions.
When the rotary valve is in a closed state, if the gas flow is larger than 0, the rotary valve is in a gas leakage state, and the control system 7 closes the electromagnetic valve 4, closes the air inlet valve 3 and triggers the alarm device. If the gas flow is greater than 0 and the voltage value of the thermocouple is greater than a second set value, the gas is in an ignition state, and the control system 7 closes the electromagnetic valve 4, closes the air inlet valve 3 and triggers the alarm device. Wherein, the first set value is less than or equal to the second set value.
When the rotary valve is in a closed state, if the voltage value of the thermocouple is greater than a first set value, the voltage of the thermocouple is continuously detected, if the voltage value of the thermocouple is in an ascending trend and is higher than a second set value, the rotary valve is in a fire state, even if the gas flow is equal to 0 and no leakage exists, but the fire possibly caused by other reasons occurs, and the control system 7 closes the electromagnetic valve 4, closes the air inlet valve 3 and triggers an alarm device to prevent a large fire or explosion. If the voltage value of the thermocouple is in a descending trend to be smaller than the first set value, the normal fire shut-off state is achieved, the fire shut-off state may be just turned off, and the temperature of the thermocouple is still in a descending process.
Referring to fig. 3, in a normal fire shut-off state, the voltage of the thermocouple at the burner 2 and the gas flow in the ventilation pipeline 1 are detected, the state of the burner 2 is judged according to the voltage value of the thermocouple, and in a flameout state, if the gas flow is greater than 0, the burner is in a gas leakage state, the control system 7 closes the electromagnetic valve 4 at the burner 2, closes the gas inlet valve 3 in the ventilation pipeline 1 and triggers the alarm device, so that the purpose of double protection is achieved, gas inlet is completely cut off, and the safety is higher; through the mode that detects the gas flow, detect at the air feed source of gas, do not have the hysteresis defect, can detect the gas flow in the instant of gas leakage, control system 7 initiatively takes the leak protection measure, through alarm device suggestion user, stops the potential safety hazard.
In the normal fire-off state, if the voltage value of the thermocouple is greater than the first set value, the voltage of the thermocouple is continuously detected, if the voltage value of the thermocouple is in an ascending trend and is higher than the second set value, the thermocouple is in a fire state, even if the gas flow is equal to 0 and no leakage exists, but fire possibly caused by other reasons occurs, and the control system 7 closes the electromagnetic valve 4, closes the air inlet valve 3 and triggers an alarm device to prevent a large fire or explosion. If the voltage value of the thermocouple is in a descending trend and approaches 0, the state of the fire is shut down, the fire may be just shut down, and the temperature of the thermocouple is still in a descending state.
In a normal fire-off state, if the rotary valve is detected to be switched from a closed state to an open state, indicating that a user is igniting, the control system 7 detects the states of the electromagnetic valve 4 and the air inlet valve 3 at the moment, and if the rotary valve is in the closed state, the electromagnetic valve 4 and the air inlet valve 3 are both controlled to be opened; if the solenoid valve 4 and the intake valve 3 are always in the open state, the control operation is not necessary.
In the ignition process, if the voltage value of the ignition porcelain needle is detected to be larger than 0, the normal discharge of the ignition porcelain needle is indicated. Specifically, voltmeter 6 detects the voltage of ignition porcelain needle and signals to control system 7, and when the magnitude of voltage of ignition porcelain needle was greater than 0, it normally discharged to show ignition porcelain needle, and when the magnitude of voltage of ignition porcelain needle equals 0, it did not discharge to show ignition porcelain needle, had unusually, and control system 7 control alarm device opened this moment to voice broadcast "ignition fails, probably battery power is lower", and the display screen can show fault information simultaneously.
Under the condition that the ignition porcelain needle is normally discharged, if the detected gas flow is larger than 0 and the trend is stable, stable gas supply is indicated, and the voltage value of the thermocouple is larger than the first set value and the trend is stable, the temperature of the thermocouple is increased, and at the moment, the ignition is successful and the ignition is in a normal ignition state. The voltage value trend of the thermocouple is stable, and the voltage value of the thermocouple is in a set range.
And under the normal ignition state, the state of the rotary valve is detected in real time, and if the rotary valve is switched from the open state to the closed state, the user turns off the fire. At the moment, the rotary valve is in a closed state, referring to fig. 2, if the gas flow is greater than 0 and the duration is greater than a first set duration, the rotary valve is in a gas leakage state, and the control system 7 closes the electromagnetic valve 4, closes the air inlet valve 3 and triggers the alarm device. If the gas flow is equal to 0 and the voltage value of the thermocouple is smaller than a first set value, indicating that the gas is in a normal fire-off state; if the gas flow is equal to 0 and the voltage value of the thermocouple is greater than the first set value, the voltage of the thermocouple is continuously detected, if the voltage value of the thermocouple is in a rising trend and is higher than the second set value, the thermocouple is in a fire state, although the gas does not leak, the gas may be ignited by other reasons, and the control system 7 closes the electromagnetic valve 4, closes the gas inlet valve 3 and triggers an alarm device to prevent a large fire or explosion. If the voltage value of the thermocouple is in a descending trend to be smaller than the first set value, the normal fire shut-off state is achieved, the fire shut-off state may be just turned off, and the temperature of the thermocouple is still in a descending process. At the moment, the normal fire shut-off can be broadcasted through voice so as to prompt a user to obtain the state of the gas stove in time.
Under the condition that the ignition porcelain needle is normally discharged, if the gas flow is greater than 0 and the duration is greater than a second set duration, the voltage value of the thermocouple is detected to be less than a first set value, which indicates that the furnace end 2 is not ignited and heated, and is in an ignition failure state at the moment.
The second set time period is continued because at the moment when the user just starts ignition, there may be a situation that the gas flow at the burner 2 is too small and the concentration is too low to ignite normally, after the second set time period is continued, the gas flow is stable enough to supply ignition, and if the ignition is still not successful, there is a fault.
After the ignition fails, the control system 7 controls the voice broadcast of 'ignition fails', and the control system 7 closes the electromagnetic valve 4, closes the air inlet valve 3 and triggers the alarm device to prevent gas leakage.
And after the ignition is successful, detecting the state of the rotary valve in real time, detecting the voltage of the thermocouple at the burner 2 for many times if the rotary valve is in an open state, and indicating that the gas stove is in a normal ignition state if the voltage value is within a set range and the gas flow is greater than 0.
Referring to fig. 4, in the normal ignition state, the rotary valve is in the open state, the voltage of the thermocouple is detected in real time, if the voltage value of the thermocouple is smaller than the first set value or drops to be smaller than the first set value, it indicates that the burner 2 is abnormally extinguished, and for safety, the control system 7 closes the electromagnetic valve 4. If the gas flow is larger than 0, the gas leakage state is achieved, and the control system 7 closes the gas inlet valve 3 and triggers the alarm device. At this time, if the gas flow is equal to 0, it indicates abnormal flameout and no gas leakage, and in order to prevent gas leakage, the control system 7 may close the gas inlet valve 3 and trigger the alarm device to prompt the user to perform timely treatment. Under abnormal flameout state, the gas leaks and the gas does not leak under two kinds of circumstances, and the alarm that alarm device sent is different to the user pertinence is handled.
In the abnormal shut-down state, the control system 7 cannot automatically control the opening of the intake valve 3, and only when the user determines safety, the user manually opens the intake valve 3.
In the abnormal flameout state, when it is detected that the intake valve 3 is switched from the closed state to the open state and it is detected that the rotary valve is switched from the closed state to the open state, indicating that the user is igniting, the control system 7 opens the electromagnetic valve 4.
If the voltage value of the thermocouple is higher than the second set value, the thermocouple is heated up to a high temperature, and at the moment, the thermocouple is in a fire state, and the control system 7 closes the electromagnetic valve 4 and the air inlet valve 3 and triggers the alarm device.
In the ignition state, if the gas flow is equal to 0, the alarm device sends out first alarm information; and in the ignition state, if the gas flow is more than 0, the alarm device sends out second alarm information. In a fire state, there is gas leakage and the fire is severe. The alarm information sent by the alarm device is different, so that the user can conveniently deal with the alarm information in a targeted manner.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A control method of a gas range, comprising: detecting the voltage of a thermocouple at the burner and the gas flow in a ventilation pipeline, judging the state of the burner according to the voltage value of the thermocouple, and if the gas flow is greater than 0, the burner is in a gas leakage state under a flameout state, and a control system closes an electromagnetic valve at the burner, closes an air inlet valve in the ventilation pipeline and triggers an alarm device.
2. The control method of the gas range as set forth in claim 1, wherein if the voltage value of the thermocouple is less than the first set value, it is determined as a flameout state.
3. The control method of the gas range as set forth in claim 1, wherein in the rotary valve opened state, if the voltage of the thermocouple is less than the first set value, the gas range is in an abnormal flameout state, and the control system closes the solenoid valve.
4. The control method of the gas cooker as claimed in claim 3, wherein in the abnormal flameout state, if the gas flow is greater than 0, the gas leakage state is reached, and the control system closes the gas inlet valve and triggers the alarm device.
5. The control method of a gas range as set forth in claim 1, wherein if the voltage of the thermocouple is higher than the second set value, it is in a fire state, and the control system closes the solenoid valve and the air intake valve and activates the alarm device.
6. The control method of a gas range as set forth in claim 5, wherein in the ignition state, if the gas flow rate is equal to 0, the alarm means issues a first alarm message; and in the ignition state, if the gas flow is more than 0, the alarm device sends out second alarm information.
7. The control method of the gas range as claimed in claim 1, wherein if the voltage value of the thermocouple is greater than the first set value and the trend is stable, and the gas flow is greater than 0 and the trend is stable, the gas range is in a normal ignition state.
8. The control method of the gas stove according to claim 7, wherein in the normal ignition state, if the rotary valve is switched from the open state to the closed state, the gas flow is greater than 0 and the duration is greater than a first set duration, then the gas leakage state is achieved, and the control system closes the electromagnetic valve, closes the air inlet valve and triggers the alarm device.
9. The control method of the gas cooker as claimed in claim 1, wherein if the rotary valve is switched from the closed state to the open state, the gas flow is greater than 0 and the duration is greater than a second set duration, and the voltage value of the thermocouple is less than a first set value, the control system is in the ignition failure state, and closes the electromagnetic valve, closes the air inlet valve and triggers the alarm device.
10. A gas range characterized by being controlled by the control method of the gas range according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011001904.8A CN114251678A (en) | 2020-09-22 | 2020-09-22 | Control method of gas stove and gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011001904.8A CN114251678A (en) | 2020-09-22 | 2020-09-22 | Control method of gas stove and gas stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114251678A true CN114251678A (en) | 2022-03-29 |
Family
ID=80789556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011001904.8A Pending CN114251678A (en) | 2020-09-22 | 2020-09-22 | Control method of gas stove and gas stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114251678A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116721519A (en) * | 2023-08-10 | 2023-09-08 | 成都秦川物联网科技股份有限公司 | Gas leakage early warning method, system and medium based on intelligent gas Internet of things |
-
2020
- 2020-09-22 CN CN202011001904.8A patent/CN114251678A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116721519A (en) * | 2023-08-10 | 2023-09-08 | 成都秦川物联网科技股份有限公司 | Gas leakage early warning method, system and medium based on intelligent gas Internet of things |
| CN116721519B (en) * | 2023-08-10 | 2023-10-13 | 成都秦川物联网科技股份有限公司 | Gas leakage early warning method, system and medium based on intelligent gas Internet of things |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9228746B2 (en) | Heating device having a secondary safety circuit for a fuel line and method of operating the same | |
| CN108662747B (en) | Gas water heater and control method thereof | |
| CN107525265A (en) | Blowing type gas water heater adopting flame temperature detection and wind speed compensation | |
| US20010038986A1 (en) | Flammable vapor control system | |
| CN114251678A (en) | Control method of gas stove and gas stove | |
| CA2621709C (en) | Absorption gas arrestor system | |
| KR20140067320A (en) | Automatic cutoff apparatus of gas leak | |
| US20010042564A1 (en) | Flammable vapor control system for devices with standing pilot flame | |
| JP5746482B2 (en) | Cooker and cooker safety system | |
| CN2595405Y (en) | Fire extinguishing device for house and kitchen | |
| TW202012848A (en) | Gas stove system and control method thereof capable of preventing the leaked gas of one combustor from being ignited by another combustor | |
| CN108980888A (en) | Gas heating equipment and its control method | |
| CN107180514A (en) | A kind of domestic gas control system | |
| CN110822720B (en) | Wall-mounted boiler safety fault control method | |
| CN110454986B (en) | Combustion control system | |
| AU2016266056A1 (en) | Water Heater | |
| CN209310048U (en) | A kind of ignition control device of cooking stove | |
| TWI512246B (en) | Gas stove with flame detection | |
| JP3499281B2 (en) | Combustion equipment | |
| JP3558448B2 (en) | Combustion equipment | |
| CN210638308U (en) | Gas equipment | |
| CN215411992U (en) | Safety protection device for gas stove | |
| CN109114603A (en) | A kind of ignition control device and method of cooking stove | |
| JP2875377B2 (en) | Malfunction prevention method during pilot burner combustion | |
| CN212746467U (en) | Flame-out device for hanging gun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |