CN1667320A - Safety protection method for unexpected flameout of multipoint temperature control gas appliance - Google Patents
Safety protection method for unexpected flameout of multipoint temperature control gas appliance Download PDFInfo
- Publication number
- CN1667320A CN1667320A CN 200510041875 CN200510041875A CN1667320A CN 1667320 A CN1667320 A CN 1667320A CN 200510041875 CN200510041875 CN 200510041875 CN 200510041875 A CN200510041875 A CN 200510041875A CN 1667320 A CN1667320 A CN 1667320A
- Authority
- CN
- China
- Prior art keywords
- gas
- temperature
- gas appliance
- control system
- reduced
- 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.)
- Granted
Links
Images
Landscapes
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a safe protection method for multi point temperature controlling gas burner. It sets a temperature sensor, a circuit control system and an executing section on the gas burner. The sensor would transmit the temperature signal into electrical signal and send to circuit control system. And contrasting values are set in the control system. Comparing the value of the central temperature to the contrasting values to determine whether the gas burner is normally working, if the gas burner is flameout by accident the control system would start gas close executing component. The method shortens the protection time, and effectively avoid the accident happening.
Description
Technical field
The invention belongs to automation field.The method for security protection that relates to a kind of unexpected flameout of multipoint temperature control gas appliance.
Background technology
Current society, domestic gas is because it has efficiency of combustion height, characteristics such as environment friendly and pollution-free, used by more and more family.Especially town dweller, household gas apparatus has become one of their requisite kitchen utensils.But because the inflammability of combustion gas itself and toxic makes combustion gas in use have certain risk.Annual all parts of the country all have a large amount of owing to gas leakage in the Gas appliance use causes the report of major accident, from to seeing the analysis of these accidents, the generation of most of accident all is because unexpected flame-out and unmanned on every side nurse in the Gas appliance use, can't turn off in time that burnt gas valve causes.Therefore, in order to improve the security in the combustion gas use, a kind of effective solution is: install on the Gas appliance that uses to the resident a kind of can be sensitive detect the Gas appliance accident extinguishing and can in time turn off the device of burnt gas valve.
Yet; (comprise natural gas, liquefied petroleum gas and gas appliance) in the gas kitchen ranges of being sold on the present market; most of product does not have safety guard; though be equipped with device in the part expensive goods with similar functions; but because the control strategy performance of itself is low; and the price height is high, thereby has reduced the unfailing performance and the market penetration rate of safety guard.
The inventor analyzes the performance of traditional combustion gas tool protective device, mainly has following defective:
1, the control mode of the present existing combustion gas tool protective device in market mainly adopts single temp. type, guard time postpones (from the flame-out time interval of implementing to close the source of the gas action to protective device of kitchen range) about 30s, the time delay of this device is longer, and the performance of protection is reduced;
2, having the main and combustion gas tool of above-mentioned safety guard forms a complete production network, the market occupancy volume is limited, and for occupying the unprotect device combustion gas tool of sum more than 80% on the market, install safety guard additional, the one, the personnel that need have professional knowledge, the 2nd, there are not ripe auxiliary products at present, the maintenance service cost after installing additional is too high, no matter is that manufacturer or sale commercial city are beyond affordability;
3, it is high to contain the combustion gas tool price of protective device on the market, beyond affordability for general public.
Summary of the invention
Based in the above-mentioned background technology to the technical characterstic of existing Gas appliance safety protective device and the analysis of applicable cases at present, the objective of the invention is, a kind of method for security protection of brand-new unexpected flameout of multipoint temperature control gas appliance is proposed.According to the protective device of this method design can be sensitive detect the Gas appliance accident extinguishing and can in time turn off burnt gas valve.And according to this method for designing provide a kind of simple in structure, not only set up a small and exquisite device can for low-grade combustion gas tool, achieving gas leakage close automatically fire and burning time limitation function.Can also promote the performance of high-grade Gas appliance aspect safeguard protection greatly.
The technical solution that realizes above-mentioned task is: the method for security protection of unexpected flameout of multipoint temperature control gas appliance; it is characterized in that; this method is provided with a temperature sensor on Gas appliance; circuit control system and the execution unit of closing source of the gas; by temperature sensor the central temperature of Gas appliance burning being converted to the signal of telecommunication sends in the circuit control system; be set with in this circuit control system according to the time interval and produce a multi-point temp reduced value that increases progressively successively; kitchen range central temperature value and this multi-point temp reduced value are compared; height according to the multi-point temp reduced value; judge that Gas appliance is operate as normal or accident extinguishing; when Gas appliance meets accident flame-outly, control system will in time start the source of the gas that the execution unit of closing source of the gas is closed Gas appliance.
The present invention has adopted brand-new multi-point temp control strategy in order to realize effective implementation of safety protection function.At first with the signal of temperature sensor input, converting to handle is reduced into kitchen range central temperature signal value.Meanwhile, treatment system produces the reduced temperature signal value of a multiple spot, and the reduced temperature value of this multiple spot is time dependent.Produce a multiple spot reduced temperature value that increases progressively in the ignition phase system successively according to the time interval of setting, claim that in view of the above this control strategy is multi-point temp control, keeps a maximum contrast temperature value after combustion gas tool operate as normal.Need to prove that certain time interval, the reduced temperature value that increases progressively and maximum contrast temperature value all are predefined according to the practical operation situation of concrete gas kitchen ranges by control system.In the whole process of system's operation, control system will be compared to kitchen range central temperature value and reduced temperature value, when if reduced temperature is hanged down, the expression gas kitchen ranges is working properly, and when the reduced temperature value is high, expression kitchen range accident extinguishing, control system will start flame-out control section and close combustion gas tool source of the gas.Wherein stove and accessory central temperature and reduced temperature can show by display screen, convenient monitoring and setting.
Traditional method for designing has been broken in the design of multiple spot reduced temperature value in the above circuit control, and the guard time delay has been shortened in this design, effectively prevents the generation of accident.Simultaneously in this design, timer function can be provided, the performance of gas kitchen ranges can be promoted, user-friendly.
Description of drawings
Fig. 1 is the whole system operation flow chart;
Fig. 2 is that test uses gas kitchen ranges in each combustion phases stove heart temperature trend graph;
Fig. 3 is specific embodiments installation drawing (not comprising thermocouple);
Fig. 4 is specific embodiments three-dimensional view (not comprising thermocouple);
In Fig. 2: the I district is an ignition phase.Temperature is from the maximum temperature that rises to above freezing, and the used time of measuring all stage is 60s;
The II district is normal operational phase.Temperature keeps (840 ± 20) ℃ in this in stage, and the time in this stage shown in the figure is an experimental period, is normal service time during this period of time in the process that the combustion gas tool uses.Changeable, but temperature remains unchanged substantially;
The III district is the flame-out stage.The temperature in this stage drops to environment temperature gradually from stable normal serviceability temperature, and this stage required time is longer, but when beginning to stop working, variations in temperature is very fast.
In Fig. 3: 1, control circuit board, 2, relay indicating light, 3, LED time display, 4, turbine worm transmission mechanism, 5, contact power switch, 6, DC speed-reducing, 7, battery pack, 8, frame
The present invention is described in further detail below in conjunction with specific embodiment that accompanying drawing and inventor provide.
The specific embodiment
Form by three parts according to the experimental rig that the system shown in Figure 1 workflow diagram is built: 1. temperature acquisition part, form by the very hot galvanic couple of K, lead, a mounting bracket; 2. the control circuit part is made up of a singlechip chip, a counter, two parts such as light-emitting diode display; 3. close the source of the gas execution unit, close parts such as switch and form by a reducing motor, a worm gear drive mechanism, a contact.
Referring to Fig. 3 specific embodiments installation drawing, control circuit board 1, turbine worm transmission mechanism 4, contact power switch 5, DC speed-reducing 6, battery pack 7 all are installed on the frame 8, the turbine of turbine worm transmission mechanism 4 is connected with DC speed-reducing 6 with the coaxial installation of the rotary switch of gas kitchen ranges, scroll bar.DC speed-reducing 6 drives gas kitchen ranges rotary switch axle enforcement source of the gas by turbine worm transmission mechanism 4 and closes, and in the turbine outer rim contact power switch 5 is installed, and the angle of pre-set igniting is controlled the switching of whole device power supply by the rotation of turbine.
Below be explanation to the device course of work:
Gather flame temperature and this temperature signal is input in the control system this temperature value and reduced temperature are compared (it is to be noted that the temperature value in the said control system is corresponding voltage value here) by near the very hot galvanic couple of K that is installed in the kitchen range.As shown in Figure 2, this experimental rig has been set 32 reduced temperatures, raises gradually in time in ignition phase (being the I district) stove heart temperature.When to after the gas kitchen ranges igniting, protection system starts immediately, and reduced temperature is for being lower than environment temperature, pass through the ignition phase time 1/4 after, reduced temperature becomes T
31, pass through the identical time again after, reduced temperature becomes T
32, pass through the identical time again after, reduced temperature becomes T
33, and to keep reduced temperature be T always
33(II, III district are respectively normal operational phase and flame-out stage).No matter be that as long as stove heart temperature is lower than reduced temperature, protection system all will start machinery to be controlled, and closes the kitchen range source of the gas in stage in which.Can draw behind the gas kitchen ranges accident extinguishing by above step, from flame-out begin to the time of closing source of the gas (being that guard time postpones) be ignition phase total time of 1/4.
Simultaneously, utilize the timer of single-chip microcomputer design in the circuit control system, this timer can be set length by the user, is that unit carries out countdown with the second, and with time showing on display, this example shows with light-emitting diode display.In case making zero, timer closes combustion gas tool source of the gas with regard to driving device control drive motor.
More than two-part reduced temperature set show, time length that reduced temperature changes sets and shows and the countdown time showing all pass through the light-emitting diode display demonstration of MCU driving.
Claims (5)
1. the method for security protection of unexpected flameout of multipoint temperature control gas appliance; it is characterized in that; this method is provided with a temperature sensor on Gas appliance; circuit control system and the execution unit of closing source of the gas; by temperature sensor the central temperature of Gas appliance burning being converted to the signal of telecommunication sends in the circuit control system; be set with in this circuit control system according to the time interval and produce a multi-point temp reduced value that increases progressively successively; kitchen range central temperature value and this multi-point temp reduced value are compared; height according to the multi-point temp reduced value; judge that Gas appliance is operate as normal or accident extinguishing; when Gas appliance meets accident flame-outly, control system will in time start the source of the gas that the execution unit of closing source of the gas is closed Gas appliance.
2. the method for claim 1 is characterized in that, described circuit control system includes a singlechip chip, a counter, two light-emitting diode display parts, and the following step is carried out in its control:
1) singlechip chip is at first with the signal of temperature sensor input, and converting to handle is reduced into kitchen range central temperature signal value;
2) meanwhile, circuit control system produces a reduced temperature value, and this reduced temperature value is time dependent, produce a multi-point temp reduced value that increases progressively in the ignition phase system successively according to the time interval that sets, after the Gas appliance operate as normal, keep a maximum contrast temperature value;
3) in the whole process of Gas appliance burning, singlechip chip is compared in real time to kitchen range central temperature value and reduced temperature value, if when reduced temperature is low, represents that gas kitchen ranges is working properly;
4) when the reduced temperature value is high, expression kitchen range accident extinguishing, control system will start the execution unit that stops working and close combustion gas tool source of the gas this moment.
3. method as claimed in claim 2 is characterized in that, described two light-emitting diode display parts are used to show stove and accessory central temperature and reduced temperature.
4. the method for claim 1 is characterized in that, described temperature sensor is the very hot galvanic couple of K.
5. the method for claim 1, it is characterized in that, the described source of the gas execution unit of closing comprises that a reducing motor, a turbine worm transmission mechanism, a contact close switch, turbine in the turbine worm transmission mechanism and the coaxial installation of the rotary switch of Gas appliance, scroll bar is connected with reducing motor, and reducing motor is connected with the rotary switch axle of Gas appliance by the turbine worm transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100418757A CN1303361C (en) | 2005-03-29 | 2005-03-29 | Safety protection method for unexpected flameout of multipoint temperature control gas appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100418757A CN1303361C (en) | 2005-03-29 | 2005-03-29 | Safety protection method for unexpected flameout of multipoint temperature control gas appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1667320A true CN1667320A (en) | 2005-09-14 |
| CN1303361C CN1303361C (en) | 2007-03-07 |
Family
ID=35038551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100418757A Expired - Fee Related CN1303361C (en) | 2005-03-29 | 2005-03-29 | Safety protection method for unexpected flameout of multipoint temperature control gas appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1303361C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846340B (en) * | 2009-03-25 | 2012-12-12 | 林光湧 | Safety device for igniting, extinguishing and cutting off gas and use method thereof |
| CN103325219A (en) * | 2013-05-31 | 2013-09-25 | 江苏科技大学 | Gas stove leakage-resistant alarm system and method based on infrared sensor |
| CN104728873A (en) * | 2015-03-09 | 2015-06-24 | 浙江新涛电子科技股份有限公司 | Stove flameout control method |
| CN106152807A (en) * | 2016-08-18 | 2016-11-23 | 温书强 | A kind of pottery fires temperature control system |
| CN108506963A (en) * | 2018-04-24 | 2018-09-07 | 广东美的厨房电器制造有限公司 | The fiery detection method of range hood and its control method and system and pass and device |
| CN108518712A (en) * | 2018-04-24 | 2018-09-11 | 广东美的厨房电器制造有限公司 | Range hood and its control method and system and open fire detection method and device |
| CN112484087A (en) * | 2020-10-13 | 2021-03-12 | 华帝股份有限公司 | Cold state identification method of kitchen range and kitchen range thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184858Y (en) * | 1994-04-04 | 1994-12-07 | 史效忠 | Automatically stop burning gas leakage controller of gas burning range flame-out |
| JP2664868B2 (en) * | 1994-05-02 | 1997-10-22 | 株式会社ハーマン | Safety device of cooking device |
| CN1153268A (en) * | 1996-10-08 | 1997-07-02 | 张振茂 | Thermoelectric safety gas cooker capable of automatic closing during flameout |
| CN2424375Y (en) * | 2000-05-16 | 2001-03-21 | 豪山国际股份有限公司 | Cutoff safety device for gas kitchen range |
| GB2398629B (en) * | 2003-01-21 | 2006-06-14 | Fagor S Coop | Control and safety system for gas ovens |
-
2005
- 2005-03-29 CN CNB2005100418757A patent/CN1303361C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846340B (en) * | 2009-03-25 | 2012-12-12 | 林光湧 | Safety device for igniting, extinguishing and cutting off gas and use method thereof |
| CN103325219A (en) * | 2013-05-31 | 2013-09-25 | 江苏科技大学 | Gas stove leakage-resistant alarm system and method based on infrared sensor |
| CN104728873A (en) * | 2015-03-09 | 2015-06-24 | 浙江新涛电子科技股份有限公司 | Stove flameout control method |
| CN106152807A (en) * | 2016-08-18 | 2016-11-23 | 温书强 | A kind of pottery fires temperature control system |
| CN108506963A (en) * | 2018-04-24 | 2018-09-07 | 广东美的厨房电器制造有限公司 | The fiery detection method of range hood and its control method and system and pass and device |
| CN108518712A (en) * | 2018-04-24 | 2018-09-11 | 广东美的厨房电器制造有限公司 | Range hood and its control method and system and open fire detection method and device |
| CN108518712B (en) * | 2018-04-24 | 2020-06-05 | 广东美的厨房电器制造有限公司 | Range hood, control method and system thereof, and fire detection method and device |
| CN108506963B (en) * | 2018-04-24 | 2020-06-05 | 广东美的厨房电器制造有限公司 | Range hood, control method and system thereof, and fire-off detection method and device |
| CN112484087A (en) * | 2020-10-13 | 2021-03-12 | 华帝股份有限公司 | Cold state identification method of kitchen range and kitchen range thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1303361C (en) | 2007-03-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1303361C (en) | Safety protection method for unexpected flameout of multipoint temperature control gas appliance | |
| CN102767850A (en) | Intelligent safety control device for household gas cooker | |
| CN202813802U (en) | Intelligent air pressure system for fuel gas water heater | |
| CN202885011U (en) | Household fuel gas oven intelligent safety control device | |
| CN202647939U (en) | Intelligent type wireless coordinated type range hood | |
| CN103234276A (en) | Control device of domestic intelligent electric control fan heater | |
| CN111649357A (en) | Internet-of-things intelligent integrated cooker control system | |
| CN206648314U (en) | Water heater combustion power control system | |
| CN203454218U (en) | Intelligent gas stove | |
| CN101078530A (en) | Automatic gas stove | |
| CN201547849U (en) | Induction cooker | |
| CN212777460U (en) | Take excessive fire protection function integrated steam engine ignition controller | |
| CN2531275Y (en) | Digital-controlled intelligent gas range | |
| CN205104001U (en) | Alarm controller | |
| CN208269207U (en) | A kind of commercial energy-saving gas stove control device | |
| CN2526701Y (en) | Controller for mated gas ring and fume exhaustor | |
| CN210802089U (en) | Double-gas burner controller | |
| CN219976520U (en) | Temperature control and light control automatic switch for kitchen range hood | |
| CN203274023U (en) | Intelligent electric control heating furnace | |
| CN220509310U (en) | Control system of oven and oven thereof | |
| CN206001535U (en) | A kind of integrated kitchen range misfired nothing pot | |
| CN212456986U (en) | Internet-of-things intelligent integrated cooker control system | |
| CN207831430U (en) | A kind of SCM Based intelligent cooking stove controller | |
| CN201936206U (en) | Multifunctional digital control constant temperature adjusting apparatus | |
| CN201434999Y (en) | Solar energy hot-water engineering controlling cabinet with a touch screen combine with a PLC |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070307 Termination date: 20100329 |