CN202443560U - Automatic early warning device for leakage of coal gas - Google Patents
Automatic early warning device for leakage of coal gas Download PDFInfo
- Publication number
- CN202443560U CN202443560U CN2012200463601U CN201220046360U CN202443560U CN 202443560 U CN202443560 U CN 202443560U CN 2012200463601 U CN2012200463601 U CN 2012200463601U CN 201220046360 U CN201220046360 U CN 201220046360U CN 202443560 U CN202443560 U CN 202443560U
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- China
- Prior art keywords
- coal gas
- chip microcomputer
- alarm
- early warning
- warning device
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an automatic early warning device for leakage of coal gas. The automatic early warning device is used for detecting whether coal gas leaks in a coal gas storage place or not, can automatically give an alarm once the coal gas leaks, automatically switches on an exhaust fan to extract the coal gas in a room, and ensures safety. The device comprises a coal gas sensor (1), a processing circuit (2), a single chip microcomputer (3), an alarm (4) and an exhaust device (5). When the coal gas sensor detects that the coal gas leaks, voltage outputted by the coal gas sensor is increased, low level is outputted to the single chip microcomputer (3) after the voltage is transmitted to the processing circuit (2), and the single chip microcomputer (3) controls the alarm (4) to give an alarm and the exhaust device (5) to exhaust the leaked coal gas after processing the low level. The automatic early warning device can be used in places such as a kitchen and a coal gas warehouse.
Description
Technical field
This utility model relates to fields such as electronic technology, sensing technology, infotech and singlechip technology.
Background technology
Rock gas, coal gas liquefied gas get into huge numbers of families with pipeline or canned form, when bringing convenience for numerous residents, also bring hiding harm.All can take place every year because of pipeline and the outmoded accident to leak the coal gas that causes of equipment.The device that a kind of gas leak that designs the utility model detects also ability early warning and carries out exhaust solves huge numbers of families' gas safety hidden danger.
Summary of the invention
This utility model relates to a kind of gas leak automatic warning device, it is characterized in that this device comprises gas sensor (1), treatment circuit (2), single-chip microcomputer (3), alarm (4) and exhaust apparatus (5); Gas sensor (1) is connected to treatment circuit (2), and treatment circuit (2) is connected to single-chip microcomputer (3), single-chip microcomputer (3) control alarm (4) and exhaust apparatus (5).Gas sensor (1) is sent to treatment circuit (2) with the gas leak signal, and single-chip microcomputer (3) is accepted the signal of treatment circuit (2), and after single-chip microcomputer (3) inter-process, control alarm (4) is reported to the police, the exhaust of control vent fan.When sensor (1) detects gas leak, or when sensor (1) and treatment circuit (2) fault, alarm (4) receives single-chip microcomputer (3) control to send different chimes of dooms.
When gas sensor (1) when detecting gas leak, its internal resistance reduces, and treated circuit (2) back output low level is given single-chip microcomputer (3), handles back control alarm (4) warning and exhaust apparatus (5) exhaust through single-chip microcomputer (3).This utility model can be used for places such as kitchen, coal gas warehouse.
The characteristics of the utility model are safe, reliable, intelligent.
Description of drawings
Fig. 1 is a block scheme, and Fig. 2 is sensor and treatment circuit, and Fig. 3 is single-chip microcomputer, alarm and exhaust apparatus.
Among Fig. 1, Fig. 2 and Fig. 3,1 is that sensor, 2 is that treatment circuit, 3 is that single-chip microcomputer, 4 is that alarm, 5 is exhaust apparatus.
Specific embodiments
This device is made up of gas sensor (1), treatment circuit (2), single-chip microcomputer (3), alarm (4) and exhaust apparatus (5).Gas sensor (1) is connected to treatment circuit (2), and treatment circuit (2) is connected to single-chip microcomputer (3), single-chip microcomputer (3) control alarm (4) and exhaust apparatus (5).The OUT1 of Fig. 2, OUT2 and OUT3 are connected with IN1, IN2 and the IN3 of Fig. 3 respectively.During normal condition; Treatment circuit OUT3 end output high level; When gas sensor (1) detects gas concentration and increases to a certain degree; Its internal resistance reduces, and the OUT3 end output low level of treatment circuit (2) is given single-chip microcomputer (3), and control alarm (4) is reported to the police and exhaust apparatus (5) exhaust after single-chip microcomputer (3) is handled.
In the present embodiment, gas sensor (1) adopts TGS2610 #16, and pin 1,4 inside of this sensor are heating resistor, and pin 2,3 is a sensitive resistance, and pin 3 must connect positive source.
In the present embodiment, the U2 in the treatment circuit (2) adopts chip UA741, and each resistance parameter is respectively R1=3.57kW; R2=7.5kW, R3=1kW, R4=4.32kW; RTH is a negative temperature coefficient resister, and resistance is 5kW, RL sensor load resistance; Resistance is relevant with the sensor ID number, and sensor TGS2610 #16 gets RL=4.22kW.OUT1, OUT2 are sensor fault output, and when the inner number of sensor TGS2610 road, OUT1 or OUT2 output voltage are lower than normal value.OUT3 is the output of reporting to the police, when sensor when gas concentration reaches preset value, the OUT3 output low level.
In the present embodiment, single-chip microcomputer (3) adopts chip STC12C2052AD, and IN1, IN2 connect the pin 13 (analog to digital conversion input ADC1) and the pin 12 (analog to digital conversion input ADC0) of single-chip microcomputer, and IN3 connects pin 7 (interrupting 1 outward).Pin 15 is reported to the police through resistance R 7 controls.Single-chip microcomputer pin 18 is through resistance R 6 control exhaust apparatus.
In the present embodiment, the SSR of exhaust apparatus (5) is a solid-state relay, and the employing model is SSR-10DA, and Fan is an exhaust fan, adopts the alternating current 220V power supply.
In the present embodiment, all direct current supplys are all adopted+the 5V power supply.
Claims (1)
1. a gas leak automatic warning device is characterized in that this device comprises gas sensor (1), treatment circuit (2), single-chip microcomputer (3), alarm (4) and exhaust apparatus (5); Gas sensor (1) is connected to treatment circuit (2), and treatment circuit (2) is connected to single-chip microcomputer (3), single-chip microcomputer (3) control alarm (4) and exhaust apparatus (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200463601U CN202443560U (en) | 2012-02-14 | 2012-02-14 | Automatic early warning device for leakage of coal gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200463601U CN202443560U (en) | 2012-02-14 | 2012-02-14 | Automatic early warning device for leakage of coal gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202443560U true CN202443560U (en) | 2012-09-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200463601U Expired - Fee Related CN202443560U (en) | 2012-02-14 | 2012-02-14 | Automatic early warning device for leakage of coal gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202443560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105809895A (en) * | 2016-06-13 | 2016-07-27 | 詹朝润 | Combustible gas intelligent detection alarm system |
-
2012
- 2012-02-14 CN CN2012200463601U patent/CN202443560U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105809895A (en) * | 2016-06-13 | 2016-07-27 | 詹朝润 | Combustible gas intelligent detection alarm system |
| CN105809895B (en) * | 2016-06-13 | 2019-04-23 | 詹朝润 | Combustible gas intelligent detecting and warning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120919 Termination date: 20130214 |