CN103994478B - A kind ofly be applied to the detection method of gas kitchen ranges to gas leakage - Google Patents
A kind ofly be applied to the detection method of gas kitchen ranges to gas leakage Download PDFInfo
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- CN103994478B CN103994478B CN201410174536.5A CN201410174536A CN103994478B CN 103994478 B CN103994478 B CN 103994478B CN 201410174536 A CN201410174536 A CN 201410174536A CN 103994478 B CN103994478 B CN 103994478B
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Abstract
The present invention relates to combustion gas use safety detection field, it discloses a kind of for the detection method of gas kitchen ranges to gas leakage, improve the security that combustion gas uses.In the present invention by detecting gas concentration and judging, report to the police when gas concentration exceedes the respective threshold of setting, close gas source valve operation, do not allow ignition operation; Only have when gas concentration is reduced to certain threshold value, just remove warning, allow ignition operation.The present invention is applicable to gas safety detection.
Description
Technical field
The present invention relates to combustion gas use safety detection field, be specifically related to a kind ofly be applied to the detection method of gas kitchen ranges to gas leakage.
Background technology
Gas-cooker refers to the kitchen utensils carrying out straight fire heating with gaseous fuels such as liquefied petroleum gas, artificial coal gas, natural gases, and its popular degree is omniscient, can say that it is the necessary tool of family kitchen.But in actual life, gas kitchen ranges in use explosion accident happens occasionally, and this mainly reaches finite concentration due to gas leakage in kitchen cabinet, the blast that gas-cooker causes when striking sparks.People more and more pay close attention to the security using gas-cooker.Therefore, the application is necessary that proposition is a kind of and is applied to the detection method of gas kitchen ranges to gas leakage.
Summary of the invention
Technical problem to be solved by this invention is: propose a kind ofly to be applied to the detection method of gas kitchen ranges to gas leakage, improves the security that combustion gas uses.
The present invention solves the problems of the technologies described above adopted scheme:
Be applied to the detection method of gas kitchen ranges to gas leakage, described gas kitchen ranges comprises microprocessor, gas security, valve positioner, gas source valve, display screen, alarm, ignition switch circuit; Described gas security, valve positioner, display screen, alarm, ignition switch circuit all connect microprocessor, described gas source valve connection valve door controller;
This detection method comprises:
After gas kitchen ranges start spark delay certain hour, gas security detects current gas concentration in real time, and sending testing result to microprocessor, microprocessor carries out judging and processing according to testing result: if when current gas concentration reaches setting value V1, controls alarm and reports to the police; If when current gas concentration continuation rising reaches setting value V2, gas source valve is closed by by-pass valve control controller, simultaneously show failure code on a display screen and control alarm and report to the police, and control ignition switch circuit inefficacy simultaneously, make currently cannot carry out ignition operation; When gas concentration drops to setting value V3, remove the display of failure code and corresponding warning, and remove the failure state of ignition switch circuit, make currently can carry out ignition operation;
When gas kitchen ranges is standby, gas security detects current gas concentration in real time, and sending testing result to microprocessor, microprocessor carries out judging and processing according to testing result: if when current gas concentration reaches setting value V4, controls alarm and reports to the police; If when current gas concentration continuation rising reaches setting value V5, gas source valve is closed by by-pass valve control controller, simultaneously show failure code on a display screen and control alarm and report to the police, and control ignition switch circuit inefficacy simultaneously, make currently cannot carry out ignition operation; When gas concentration drops to setting value V6, remove the display of failure code and corresponding warning, and remove the failure state of ignition switch circuit, make currently can carry out ignition operation;
Wherein, V3 < V1 < V2, V6 < V4 < V5, and V1 ≠ V4, V2 ≠ V5.
Further, described alarm is buzzer.
Further, after gas kitchen ranges start spark delay a period of time, when current gas concentration reaches setting value V1, the alarm sound of buzzer is had any different with the alarm sound of buzzer when current gas concentration reaches setting value V2.
Further, when gas kitchen ranges is standby, when current gas concentration reaches setting value V4, the alarm sound of buzzer is had any different with the alarm sound of buzzer when current gas concentration reaches preset value V5.
The invention has the beneficial effects as follows: by detecting gas concentration and judging, report to the police when gas concentration exceedes the respective threshold of setting, close gas source valve operation, do not allow ignition operation; Only have when gas concentration is reduced to certain threshold value, just remove warning, allow ignition operation, thus improve the security of combustion gas use.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the gas kitchen ranges in the present invention;
Fig. 2 is the flow chart of detection method embodiment.
Detailed description of the invention
The present invention is intended to propose a kind ofly to be applied to the detection method of gas kitchen ranges to gas leakage, improves the security that combustion gas uses.Its core concept is: by detecting gas concentration and judging, report to the police when gas concentration exceedes the respective threshold of setting, closes gas source valve operation, does not allow ignition operation; Only have when gas concentration is reduced to certain threshold value, just remove warning, allow ignition operation.
Below in conjunction with drawings and Examples, the solution of the present invention is further described:
As shown in Figure 1, it comprises microprocessor, gas security, valve positioner, gas source valve, display screen, alarm, ignition switch circuit to gas-cooker structure described in the present invention; Described gas security, valve positioner, display screen, alarm, ignition switch circuit all connect microprocessor, described gas source valve connection valve door controller; Each component part above-mentioned all can adopt hardware product ripe on existing market to realize, and no longer repeats the concrete structure of its component part here.
Embodiment:
In this example for the testing process of gas leakage as shown in Figure 2, when gas kitchen ranges system electrification, more than 3 minutes are heated (because gas security is semiconductor devices to gas security, need before use to allow after its work a period of time (3 minutes) and be just in stable state, the actual concentrations of the concentration value at this moment detected closely combustion gas).Then the gas concentration detection threshold that microcomputer reads is default, the reference concentration under duty as reference concentration, and is set to different threshold values from the reference concentration under holding state by the gas concentration in the application under pure air; Currently be in just in fired state if microprocessor detects, gas concentration wouldn't be detected, (due in ignition process after time delay certain hour, need about 5 seconds to kindling a fire from opening burnt gas valve, gas concentration is very high during this period of time, therefore does not detect gas concentration when being in fired state, otherwise meeting false alarm, after kindling a fire, about treat that combustion gas leaves (about 30 second) detects gas concentration again, would not false alarm).Gas security detects current gas concentration, testing result is transferred to microprocessor, microprocessor compares current gas concentration and reference concentration and processes: if when current gas concentration reaches setting value V1, it (can be audible alarm that control alarm carries out reporting to the police, also can be the combination of light warning or sound and light alarm), if when gas concentration continuation rising reaches setting value V2, gas source valve is closed by by-pass valve control controller, show failure code on a display screen and control alarm simultaneously and report to the police, and control ignition switch circuit to lose efficacy simultaneously, make currently cannot carry out ignition operation, when gas concentration drops to setting value V3, remove the display of failure code and corresponding warning, and remove the failure state of ignition switch circuit, make currently can carry out ignition operation,
If gas-cooker is in holding state, when current gas concentration reaches setting value V4, Microprocessor S3C44B0X alarm is reported to the police; If when current gas concentration continuation rising reaches setting value V5, gas source valve is closed by by-pass valve control controller, simultaneously show failure code on a display screen and control alarm and report to the police, and control ignition switch circuit inefficacy simultaneously, make currently cannot carry out ignition operation; When gas concentration drops to setting value V6, remove the display of failure code and corresponding warning, and remove the failure state of ignition switch circuit, make currently can carry out ignition operation.
In order to distinguish reporting to the police under variable concentrations further, what arrange with alarm signal when reaching V2 when current gas concentration can be reached V1 has any different, such as: in working order, it is mild a little that current gas concentration reaches V1 alarm sound, or flashing rate is lower, reach V2 alarm sound in current gas concentration relatively more rapid, or flashing rate is higher, to pass on to user the signal that current dangerous degree is higher; Equally, in the standby state, reach V4 alarm sound in current gas concentration mild a little, or flashing rate is lower, reach V5 alarm sound in current gas concentration relatively more rapid, or flashing rate is higher.
V3 < V1 < V2 described here, V6 < V4 < V5, and V1 ≠ V4, V2 ≠ V5.And the value of V3 and V6 here can arrange equal.In the application to the reason that holding state and duty arrange different reference thresholds be: in the standby state, do not open burnt gas valve; And during duty, open burnt gas valve, add combustion conditions, gas concentration during normal work is more much higher than holding state, in order to avoid false alarm, will arrange different reference threshold values.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (4)
1. be applied to the detection method of gas kitchen ranges to gas leakage, described gas kitchen ranges comprises microprocessor, gas security, valve positioner, gas source valve, display screen, alarm, ignition switch circuit; Described gas security, valve positioner, display screen, alarm, ignition switch circuit all connect microprocessor, described gas source valve connection valve door controller;
It is characterized in that, this detection method comprises:
After gas kitchen ranges start spark delay certain hour, gas security detects current gas concentration in real time, and sending testing result to microprocessor, microprocessor carries out judging and processing according to testing result: if when current gas concentration reaches setting value V1, controls alarm and reports to the police; If when current gas concentration continuation rising reaches setting value V2, gas source valve is closed by by-pass valve control controller, simultaneously show failure code on a display screen and control alarm and report to the police, and control ignition switch circuit inefficacy simultaneously, make currently cannot carry out ignition operation; When gas concentration drops to setting value V3, remove the display of failure code and corresponding warning, and remove the failure state of ignition switch circuit, make currently can carry out ignition operation;
When gas kitchen ranges is standby, gas security detects current gas concentration in real time, and sending testing result to microprocessor, microprocessor carries out judging and processing according to testing result: if when current gas concentration reaches setting value V4, controls alarm and reports to the police; If when current gas concentration continuation rising reaches setting value V5, gas source valve is closed by by-pass valve control controller, simultaneously show failure code on a display screen and control alarm and report to the police, and control ignition switch circuit inefficacy simultaneously, make currently cannot carry out ignition operation; When gas concentration drops to setting value V6, remove the display of failure code and corresponding warning, and remove the failure state of ignition switch circuit, make currently can carry out ignition operation;
Wherein, V3 < V1 < V2, V6 < V4 < V5, and V1 ≠ V4, V2 ≠ V5.
2. detection method as claimed in claim 1, it is characterized in that, described alarm is buzzer.
3. detection method as claimed in claim 2, it is characterized in that, after gas kitchen ranges start spark delay a period of time, when current gas concentration reaches setting value V1, the alarm sound of buzzer is had any different with the alarm sound of buzzer when current gas concentration reaches setting value V2.
4. detection method as claimed in claim 2, is characterized in that, when gas kitchen ranges is standby, when current gas concentration reaches setting value V4, the alarm sound of buzzer is had any different with the alarm sound of buzzer when current gas concentration reaches preset value V5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410174536.5A CN103994478B (en) | 2014-04-28 | 2014-04-28 | A kind ofly be applied to the detection method of gas kitchen ranges to gas leakage |
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| CN201410174536.5A CN103994478B (en) | 2014-04-28 | 2014-04-28 | A kind ofly be applied to the detection method of gas kitchen ranges to gas leakage |
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| CN103994478A CN103994478A (en) | 2014-08-20 |
| CN103994478B true CN103994478B (en) | 2016-02-10 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964313B (en) * | 2015-07-14 | 2018-09-14 | 广东美的厨房电器制造有限公司 | The gas leakage treating method and apparatus of gas-cooker |
| TWI715377B (en) * | 2019-12-26 | 2021-01-01 | 台灣新光保全股份有限公司 | Gas monitor system |
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| CN2065734U (en) * | 1989-12-08 | 1990-11-14 | 东莞市石碣前锋无线电器材厂 | Toxic gas alarm controller |
| JPH06221564A (en) * | 1993-01-21 | 1994-08-09 | Fujita Corp | Automatic heater for cooking |
| CN2180904Y (en) * | 1993-09-24 | 1994-10-26 | 胡瑞喜 | Gas self-controller with alarm |
| JP2003090777A (en) * | 2001-09-20 | 2003-03-28 | Ito Koki Kk | Gas leakage detector |
| CN2911484Y (en) * | 2006-03-29 | 2007-06-13 | 杨海君 | Self-control safety device of gas cooker |
| CN101706113A (en) * | 2009-11-17 | 2010-05-12 | 刘培超 | Intelligent gas cooker |
| CN103090424A (en) * | 2012-12-15 | 2013-05-08 | 徐州联宝科技有限公司 | Gas stove capable of performing detecting and early warning on coal gas |
-
2014
- 2014-04-28 CN CN201410174536.5A patent/CN103994478B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2065734U (en) * | 1989-12-08 | 1990-11-14 | 东莞市石碣前锋无线电器材厂 | Toxic gas alarm controller |
| JPH06221564A (en) * | 1993-01-21 | 1994-08-09 | Fujita Corp | Automatic heater for cooking |
| CN2180904Y (en) * | 1993-09-24 | 1994-10-26 | 胡瑞喜 | Gas self-controller with alarm |
| JP2003090777A (en) * | 2001-09-20 | 2003-03-28 | Ito Koki Kk | Gas leakage detector |
| CN2911484Y (en) * | 2006-03-29 | 2007-06-13 | 杨海君 | Self-control safety device of gas cooker |
| CN101706113A (en) * | 2009-11-17 | 2010-05-12 | 刘培超 | Intelligent gas cooker |
| CN103090424A (en) * | 2012-12-15 | 2013-05-08 | 徐州联宝科技有限公司 | Gas stove capable of performing detecting and early warning on coal gas |
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| Publication number | Publication date |
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| CN103994478A (en) | 2014-08-20 |
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