CN205384720U - Combustible gas leakage alarm device - Google Patents
Combustible gas leakage alarm device Download PDFInfo
- Publication number
- CN205384720U CN205384720U CN201620110543.3U CN201620110543U CN205384720U CN 205384720 U CN205384720 U CN 205384720U CN 201620110543 U CN201620110543 U CN 201620110543U CN 205384720 U CN205384720 U CN 205384720U
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- foot
- alarm device
- resistance
- photoelectrical coupler
- gas sensor
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Abstract
The utility model belongs to the technical field of combustible gas is safe in utilization, concretely relates to combustible gas leakage alarm device. Combustible gas leakage alarm device, it includes detection circuitry, optoelectronic coupler U1 and warning circuit, and this combustible gas leakage alarm device's detection circuitry adopts 12V battery powered, adopts optoelectronic coupler to keep apart between detection circuitry and the warning circuit, and warning circuit adopts 4.5V battery powered. Because this combustible gas leakage alarm device's power all adopts the battery, has reduced danger, has improved the security.
Description
Technical field
This utility model belongs to fuel gas and uses security technology area, is specifically related to a kind of Combustible Gas Leak alarm device.
Background technology
Imflammable gas (includes artificial coal gas, liquefied petroleum gas, natural gas) as a kind of efficient, clean energy and comes into the family of huge numbers of families.Imflammable gas has inflammable, explosive characteristic, if improper use, accidentally causes that imflammable gas is revealed, will there is very big potential safety hazard.Owing to there is the factor be interrupted supply, use improper storage and the aspects such as pipeline, gas utensil leakage, fire, blast, the poisoning accident such as dead is caused constantly to occur.
Existing flammable gas alarm device, generally, all using standard household AC electrical is that flammable gas alarm device is powered.Referenced patent document CN103886721A discloses a kind of domestic coal seam gas leakage alarm device, adopt gas sensory sensor QM-N10 to monitor the concentration of coal gas gasification gas in air and export one with the current signal of coal gas gasification gas concentration change in air, the start-up circuit of this signal amplified control music-integrating block KD9561 again, KD9561 promotes sound horn.Referenced patent document CN202887404U discloses a kind of combustible gas leakage alarm, this alarm is when combustable gas concentration is higher than controlled concentration, the sliding end voltage of end adjustable shunt diode is higher than 2.5V, the cathode voltage of end adjustable shunt diode reduces to about 2V, electric current increases to tens milliamperes, relay and buzzer work, send chimes of doom.
The power supply of above-mentioned flammable gas alarm device all adopts 220V alternating current power supply, and 220V alternating current power supply is powered for gas sensor after blood pressure lowering.Therefore, when 220V alternating current power supply power-off, above-mentioned flammable gas alarm device all cannot work.Immediate vicinity additionally, general flammable gas alarm device all arranges distance imflammable gas, use 220V alternating current power supply to power, it is possible to spark can be produced, light the imflammable gas in air, cause the disaster such as fire, blast.
Utility model content
For existing flammable gas alarm device adopt 220V alternating current power supply power exist weak point, the utility model proposes a kind of Combustible Gas Leak alarm device, the testing circuit of this Combustible Gas Leak alarm device adopts 12V battery to power, adopting photoelectric coupler isolation to come between testing circuit and warning circuit, warning circuit adopts 4.5V battery to power.Owing to the power supply of this Combustible Gas Leak alarm device all adopts battery, reduce danger, improve safety.
This utility model adopts the following technical scheme that
A kind of Combustible Gas Leak alarm device, it includes testing circuit, photoelectrical coupler U1 and warning circuit, testing circuit includes the first power supply BG1, gas sensor QM, switch S, first resistance R1, second resistance R2 and the three resistance R3, the positive pole of the first power supply BG1 connects the 1st foot of gas sensor QM through switch S, 1st foot of gas sensor QM and the 3rd foot connect, the first resistance R1 is concatenated between 1st foot and the 2nd foot of gas sensor QM, 5th foot of gas sensor QM connects the negative pole of the first power supply BG1 through the second resistance R2, connect the negative pole of the first power supply BG1 through the 3rd resistance R3 after 4th foot of gas sensor QM and the connection of the 6th foot；
The input anode of photoelectrical coupler U1 connects the 4th foot of gas sensor QM, and the input cathode of photoelectrical coupler U1 connects the negative pole of the first power supply BG1；
Warning circuit includes second source BG2, Light-Emitting Diode LED and speaker RL, the negative pole of second source BG2 connects first outfan of photoelectrical coupler U1, and the positive pole of second source BG2 is sequentially connected in series Light-Emitting Diode LED, speaker RL is followed by second outfan of photoelectrical coupler U1.
Further, warning circuit also includes the 4th resistance R4 and diode D1, and the 4th resistance R4 and diode D1 is serially connected between speaker RL and second outfan of photoelectrical coupler U1.
Further, photoelectrical coupler U1 is the photoelectrical coupler of controllable silicon output type.
Further, gas sensor QM model is QM-2.
Further, Light-Emitting Diode LED is emitting red light diode.
This utility model adopts 220V AC-powered relative to prior art, adopts common batteries to power, improves safety.And imflammable gas testing circuit adopts photoelectric coupler isolation to come with warning circuit, extend the service life of warning circuit.This utility model adopts sound light alarming circuit, can wake up with a start people when people sleep soundly, it is ensured that the safety of people.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of Combustible Gas Leak alarm device.
Detailed description of the invention
For further illustrating each embodiment, this utility model is provided with accompanying drawing.These accompanying drawings are a part for this utility model disclosure, and it is mainly in order to illustrate embodiment, and the associated description of description can be coordinated to explain the operation principles of embodiment.Coordinating with reference to these contents, those of ordinary skill in the art will be understood that other possible embodiments and advantage of the present utility model.Assembly in figure is not necessarily to scale, and similar element numbers is conventionally used to indicate similar assembly.
In conjunction with the drawings and specific embodiments, this utility model is further illustrated.
Consulting shown in Fig. 1, the circuit diagram of a kind of Combustible Gas Leak alarm device of this utility model preferably embodiment, this alarm device includes testing circuit 1, photoelectrical coupler U1 and warning circuit 2.Testing circuit 1 includes the first power supply BG1, gas sensor QM, switch S, the first resistance R1, the second resistance R2 and the three resistance R3.The positive pole of the first power supply BG1 connects the 1st foot of gas sensor QM through switch S, 1st foot of gas sensor QM and the 3rd foot connect, the first resistance R1 is concatenated between 1st foot and the 2nd foot of gas sensor QM, 5th foot of gas sensor QM connects the negative pole meeting the first power supply BG1 after the negative pole of the first power supply BG1, the 4th foot of gas sensor QM and the 6th foot connect through the 3rd resistance R3 through the second resistance R2.Wherein, the first power supply BG1 is 12V battery.
The input anode of photoelectrical coupler U1 connects the 4th foot of gas sensor QM, and the input cathode of photoelectrical coupler U1 connects the negative pole of the first power supply BG1；
Warning circuit 2 includes second source BG2, Light-Emitting Diode LED, speaker RL, the 4th resistance R4 and diode D1, the negative pole of second source BG2 connects first outfan of photoelectrical coupler U1, the positive pole of second source BG2 connects the positive pole of Light-Emitting Diode LED, the negative pole of LED connects one end of speaker RL, another termination the 4th resistance R4 of speaker RL is followed by the positive pole of diode D1, and the negative pole of diode D1 connects second outfan of photoelectrical coupler U1.
It should be noted that the photoelectrical coupler that photoelectrical coupler U1 is controllable silicon output type of this embodiment.Skilled person will appreciate that, photoelectrical coupler U1 also can adopt other types, such as the photoelectrical coupler of audion output type.
Additionally, the preferred gas sensor QM model of this embodiment is QM-2, Light-Emitting Diode LED is emitting red light diode.Utilizing people to red sensitivity, the existence of multiplex red font, red light warning people's danger in life, because this embodiment adopts emitting red light diode to remind people to there is certain danger, allows people note protecting oneself.
This embodiment is arranged near household fuel gas pipeline or liquid gas storage tank, when the concentration of fuel gas reaches certain value, resistance value between the two poles of the earth of gas sensor QM reduces rapidly, 4th foot of gas sensor QM and the voltage of the 6th foot raise rapidly, the input anode of photoelectrical coupler U1 has voltage to input, photoelectrical coupler U1 is made to turn on, after the outfan conducting of photoelectrical coupler U1, warning circuit 2 constitutes loop, now Light-Emitting Diode LED sends red light, and speaker sends sound, thus carrying out sound and light alarm, remind people's Combustible Gas Leak.
Although specifically showing in conjunction with preferred embodiment and describing this utility model; but those skilled in the art should be understood that; in the spirit and scope of the present utility model limited without departing from appended claims; this utility model can be made a variety of changes in the form and details, be protection domain of the present utility model.
Claims (5)
1. a Combustible Gas Leak alarm device, it includes testing circuit, photoelectrical coupler U1 and warning circuit, it is characterized in that: described testing circuit includes the first power supply BG1, gas sensor QM, switch S, first resistance R1, second resistance R2 and the three resistance R3, the positive pole of described first power supply BG1 connects the 1st foot of gas sensor QM through switch S, 1st foot of gas sensor QM and the 3rd foot connect, the first resistance R1 is concatenated between 1st foot and the 2nd foot of gas sensor QM, 5th foot of gas sensor QM connects the negative pole of the first power supply BG1 through the second resistance R2, connect the negative pole of the first power supply BG1 through the 3rd resistance R3 after 4th foot of gas sensor QM and the connection of the 6th foot；
The input anode of photoelectrical coupler U1 connects the 4th foot of gas sensor QM, and the input cathode of photoelectrical coupler U1 connects the negative pole of the first power supply BG1；
Described warning circuit includes second source BG2, Light-Emitting Diode LED and speaker RL, the negative pole of second source BG2 connects first outfan of photoelectrical coupler U1, and the positive pole of second source BG2 is sequentially connected in series Light-Emitting Diode LED, speaker RL is followed by second outfan of photoelectrical coupler U1.
2. Combustible Gas Leak alarm device as claimed in claim 1, it is characterized in that: described warning circuit also includes the 4th resistance R4R4 and diode D1, and described 4th resistance R4R4 and diode D1 is serially connected between speaker RL and second outfan of photoelectrical coupler U1.
3. Combustible Gas Leak alarm device as claimed in claim 1, it is characterised in that: described photoelectrical coupler U1 is the photoelectrical coupler of controllable silicon output type.
4. Combustible Gas Leak alarm device as claimed in claim 1, it is characterised in that: described gas sensor QM model is QM-2.
5. Combustible Gas Leak alarm device as claimed in claim 1, it is characterised in that: described Light-Emitting Diode LED is emitting red light diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620110543.3U CN205384720U (en) | 2016-02-01 | 2016-02-01 | Combustible gas leakage alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620110543.3U CN205384720U (en) | 2016-02-01 | 2016-02-01 | Combustible gas leakage alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205384720U true CN205384720U (en) | 2016-07-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620110543.3U Expired - Fee Related CN205384720U (en) | 2016-02-01 | 2016-02-01 | Combustible gas leakage alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205384720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781647A (en) * | 2017-09-25 | 2018-03-09 | 武汉工程大学 | A kind of long-tube trailer reveals real-time monitoring and alarming device equipment |
-
2016
- 2016-02-01 CN CN201620110543.3U patent/CN205384720U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781647A (en) * | 2017-09-25 | 2018-03-09 | 武汉工程大学 | A kind of long-tube trailer reveals real-time monitoring and alarming device equipment |
| CN107781647B (en) * | 2017-09-25 | 2024-02-02 | 武汉工程大学 | Long-tube trailer leakage real-time monitoring alarm equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160713 Termination date: 20170201 |