CN207149041U - A kind of gas extinguishing fire alarm - Google Patents
A kind of gas extinguishing fire alarm Download PDFInfo
- Publication number
- CN207149041U CN207149041U CN201720916536.7U CN201720916536U CN207149041U CN 207149041 U CN207149041 U CN 207149041U CN 201720916536 U CN201720916536 U CN 201720916536U CN 207149041 U CN207149041 U CN 207149041U
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- resistance
- electric capacity
- triode
- resistor
- operational amplifier
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Abstract
The utility model discloses a kind of gas extinguishing fire alarm, including battery, infrared sensor, operational amplifier, first resistor is to the tenth resistance, first electric capacity to the 5th electric capacity, first triode, second triode and loudspeaker, compared with prior art, the utility model senses whether combustion gas stops working by infrared sensor, when sensing gas extinguishing fire, signal amplifies through the first triode, amplify again through operational amplifier, signal after amplification triggers the second triode ON, so as to connect the loop of loudspeaker, loudspeaker alarm, to remind gas extinguishing fire, avoid gas leakage or start in time, steady operation efficiency, value with popularization and application.
Description
Technical field
It the utility model is related to gas safe electronic technology, more particularly to a kind of gas extinguishing fire alarm.
Background technology
Combustion gas is the general name of gaseous fuel, and it can burn and release heat, is used for city dweller and industrial enterprise.Combustion gas
Species it is a lot, mainly have natural gas, manufactured gas, manufactured fuel gas, liquefied petroleum gas and biogas, coal gas.In the prior art, combustion gas makes
Used time can stop working because of a variety of causes, however, resulting in gas leakage after flame-out, or influence operating efficiency, empty accordingly, there exist improving
Between.
Utility model content
The purpose of this utility model is that to solve the above problems and provides a kind of gas extinguishing fire alarm.
The utility model is achieved through the following technical solutions above-mentioned purpose：
The utility model includes battery, infrared sensor, operational amplifier, first resistor to the tenth resistance, the first electric capacity
To the 5th electric capacity, the first triode, the second triode and loudspeaker, battery 12V, operational amplifier model LM341, first
Resistance is 3.3k Ω, second resistance is 15k Ω, 3rd resistor is 3.6k Ω, the 4th resistance is 2k Ω, the 5th resistance be 56k Ω,
6th resistance to the 8th resistance be 100 Ω, the 9th resistance be 5.6 Ω, the tenth resistance is 10k Ω, the first electric capacity is 10uF,
Two electric capacity are 1000pF, the 3rd electric capacity is 47pF, the 4th electric capacity is 0.01uF, the 5th electric capacity is 0.1uF, the first triode and
Two triode models be 3DG9011, loudspeaker be 50 ohm.
The beneficial effects of the utility model are：
The utility model is a kind of gas extinguishing fire alarm, and compared with prior art, the utility model passes through infrared sensing
Whether device sensing combustion gas stops working, and when sensing gas extinguishing fire, signal amplifies through the first triode, then put through operational amplifier
Greatly, the signal after amplification triggers the second triode ON, so as to connect the loop of loudspeaker, loudspeaker alarm, to remind combustion gas
It is flame-out, avoid gas leakage or start in time, steady operation efficiency, there is the value of popularization and application.
Brief description of the drawings
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1：The utility model includes battery, infrared sensor, operational amplifier, first resistor to the tenth electricity
Resistance, the first electric capacity to the 5th electric capacity, the first triode, the second triode and loudspeaker, battery 12V, operational amplifier model
For LM341, first resistor be 3.3k Ω, second resistance is 15k Ω, 3rd resistor is 3.6k Ω, the 4th resistance is 2k Ω, the 5th
Resistance is 56k Ω, the 6th resistance to the 8th resistance be 100 Ω, the 9th resistance be 5.6 Ω, the tenth resistance be 10k Ω, first
Electric capacity is 10uF, the second electric capacity is 1000pF, the 3rd electric capacity is 47pF, the 4th electric capacity is 0.01uF, the 5th electric capacity be 0.1uF,
First triode and the second triode model be 3DG9011, loudspeaker be 50 ohm.
Operation principle of the present utility model is as follows：
Sense whether combustion gas stops working by infrared sensor, when sensing gas extinguishing fire, signal is through the first triode VT1
Amplification, then amplify through operational amplifier IC2, the signal after amplification triggers the second triode VT2 conductings, so as to connect loudspeaker Y
Loop, loudspeaker Y alarm, to remind gas extinguishing fire, avoid gas leakage.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (1)
- A kind of 1. gas extinguishing fire alarm, it is characterised in that：Including battery, infrared sensor, operational amplifier, first resistor extremely Tenth resistance, the first electric capacity to the 5th electric capacity, the first triode, the second triode and loudspeaker, battery 12V, operation amplifier Device model LM341, first resistor are 3.3k Ω, second resistance is 15k Ω, 3rd resistor is 3.6k Ω, the 4th resistance is 2k Ω, the 5th resistance are 56k Ω, the 6th resistance to the 8th resistance be 100 Ω, the 9th resistance be 5.6 Ω, the tenth resistance be 10k Ω, the first electric capacity are 10uF, the second electric capacity is 1000pF, the 3rd electric capacity is 47pF, the 4th electric capacity is 0.01uF, the 5th electric capacity is 0.1uF, the first triode and the second triode model be 3DG9011, loudspeaker be 50 ohm；The positive pole of battery simultaneously with the first end of loudspeaker, the first end of the tenth resistance, the cathode power supply end of operational amplifier, the The first end of five resistance, the first end of 3rd resistor connect with the cathode power supply end of infrared sensor, the negative pole of battery simultaneously with The emitter stage of second triode, the base stage of the second triode, the first end of the 9th resistance, the negative electricity source of operational amplifier, The first end of 3rd electric capacity, first end, the emitter stage of the first triode, the first end of first resistor and the infrared biography of the 6th resistance The negative electricity source connection of sensor, the signal output part of infrared sensor simultaneously with the first end of the first electric capacity and first resistor Second end is connected, and the second end of the first electric capacity is connected with the base stage of the first triode and the first end of second resistance simultaneously, and second Second end of resistance is connected with the first end of the colelctor electrode of the first triode, the second end of 3rd resistor and the second electric capacity simultaneously, Second end of the second electric capacity is connected with the first end of the 4th resistance, the second end of the 4th resistance and the inversion signal of operational amplifier Input is connected, and the second end of the 5th resistance is connected with the second end of the 6th resistance, the positive signal input part of operational amplifier It is connected simultaneously with the first end, the first end of the 8th resistance and the first end of the 4th electric capacity of the 7th resistance, the second of the 7th resistance End is connected with the second end of the 3rd electric capacity, the second end of the 4th electric capacity while the second end with the 8th resistance, operational amplifier Output end connects with the first end of the 5th electric capacity, the second end of the 5th electric capacity while the second end with the tenth resistance and the 9th resistance The connection of the second end, the second end of the colelctor electrode of the second triode and loudspeaker connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720916536.7U CN207149041U (en) | 2017-07-26 | 2017-07-26 | A kind of gas extinguishing fire alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720916536.7U CN207149041U (en) | 2017-07-26 | 2017-07-26 | A kind of gas extinguishing fire alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207149041U true CN207149041U (en) | 2018-03-27 |
Family
ID=61672767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720916536.7U Active CN207149041U (en) | 2017-07-26 | 2017-07-26 | A kind of gas extinguishing fire alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207149041U (en) |
-
2017
- 2017-07-26 CN CN201720916536.7U patent/CN207149041U/en active Active
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