CN107833434A - A kind of imflammable gas detects alarm - Google Patents
A kind of imflammable gas detects alarm Download PDFInfo
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- CN107833434A CN107833434A CN201711171243.1A CN201711171243A CN107833434A CN 107833434 A CN107833434 A CN 107833434A CN 201711171243 A CN201711171243 A CN 201711171243A CN 107833434 A CN107833434 A CN 107833434A
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- imflammable gas
- alarm
- module
- imflammable
- gas
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a kind of imflammable gas to detect alarm, including：Gas sensing module, analog electrical signal is converted to for sensing imflammable gas, and by imflammable gas volume fraction；Signal processing module, the gas sensing module is connected to, for the analog electrical signal to be converted into digital electric signal, and the digital electric signal is exported to control module；Control module, signal processing module is connected to, for receiving and responding the digital electric signal；Alarm module, the control module is connected to, for sending alert audio signal.The embodiment of the present invention can realize detection and the remote alarms of imflammable gas, and accuracy of detection is high, and cost is low.
Description
Technical field
The present embodiments relate to field of gas detection, more particularly to a kind of imflammable gas detection alarm.
Background technology
Fuel gas such as natural gas, liquefied petroleum gas, coal gas, hydrogen etc. meet naked light in atmosphere or spark easily occurs
Fire and blast, lives and properties are caused with very big threat.
To prevent imflammable gas from easily being exploded after finite concentration is reached, to ensure production safety, production and
Using the workshop of fuel gas, scientific research institution laboratory or other be related to using imflammable gas place usually
Need to set imflammable gas to detect warning device.Current Flammable Gas Detector functions only as the effect of detection, seldom
There are warning function and seeking help in case of emergency facility, more without remote alarming function, under some particular surroundings, in the event of imflammable gas
Leakage accident, the personnel of surrounding do not obtain timely warning message, fail to leave scene in time, it is easy to cause large area
Casualties.
The content of the invention
It is an object of the invention to provide a kind of imflammable gas to detect alarm, to realize the high accuracy of imflammable gas
Detection and wireless remote alarming.
In order to achieve the above object, the embodiment of the present invention provides a kind of imflammable gas detection alarm, including：
Gas sensing module, analog telecommunications are converted to for sensing imflammable gas, and by imflammable gas volume fraction
Number；
Signal processing module, the imflammable gas sensing module is connected to, for the analog electrical signal to be converted to
Digital electric signal, and the digital electric signal is exported to control module；
Control module, signal processing module is connected to, for receiving and responding the digital electric signal；
Alarm module, the control module is connected to, for sending alert audio signal.
Preferably, the gas sensing module is semiconductor gas sensor.
It is linear between the imflammable gas volume fraction and the analog electrical signal.
Preferably, the control module also includes：Data storage cell and data transmission unit.
The data storage cell, for storing the predetermined threshold value and alarming value of imflammable gas volume fraction.
The data transmission unit, for realizing being wirelessly transferred for warning message between the alarm.
Preferably, in addition to display module, the control module is connected to, for showing imflammable gas in present air
The scope of volume fraction.
The display module includes：At least one light source, for indicating different imflammable gas bodies using different colours
The scope of fraction.
Preferably, in addition to manual alarm button, the alarm module is connected to, for manually booting the alarm module
Work.
Preferably, in addition to：Power module, it is respectively connecting to the gas sensing module, the signal processing module, institute
Control module, the alarm module and display module are stated, for detecting the circuit power supply in alarm for the imflammable gas.
Technical scheme provided in an embodiment of the present invention brings following beneficial effect：The present invention passes through gas sensing module, letter
Number processing module, control module and alarm module, the detection and alarm of imflammable gas are realized, accuracy of detection is high, and cost is low.
Brief description of the drawings
Fig. 1 is the structural representation of the imflammable gas detection alarm in the embodiment of the present invention one；
Fig. 2 is another structural representation of the imflammable gas detection alarm in the embodiment of the present invention one；
Fig. 3 is the structural representation of the imflammable gas detection alarm in the embodiment of the present invention two.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just
Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
Embodiment one
Fig. 1 is refer to, Fig. 1 is the structural representation for the imflammable gas detection alarm that the embodiment of the present invention one provides,
As shown in figure 1, imflammable gas detection alarm includes：
Gas sensing module 11, simulation electricity is converted to for sensing imflammable gas, and by imflammable gas volume fraction
Signal；
Signal processing module 12, the imflammable gas sensing module is connected to, for the analog electrical signal to be changed
For digital electric signal, and the digital electric signal is exported to control module 13；
Control module 13, signal processing module 12 is connected to, for receiving and responding the digital electric signal；
Alarm module 14, the control module 13 is connected to, for sending alert audio signal.
Wherein, imflammable gas sensing module 11 includes semiconductor gas sensor and its peripheral circuit.Wherein semiconductor
Gas sensor is metal-oxide gas transducer, and metal-oxide gas transducer utilizes the suction-operated of tested gas,
Change the electrical conductivity of semiconductor, by the comparison of electric signal, excite warning circuit.When the volume fraction of imflammable gas is bigger,
The gas of semiconductor gas sensor absorption is more, and the conductivity variations of semiconductor are bigger；When the volume fraction of imflammable gas
Smaller, the gas of semiconductor gas sensor absorption is fewer, and the conductivity variations of semiconductor are smaller.Semiconductor gas sensor handle
The volume fraction of imflammable gas is converted to corresponding analog electrical signal, imflammable gas volume fraction and analog telecommunications
It is linear between number.Signal processing module 12 can be A/D converter, gas sensing module 11 is connected to, by semiconductor
The analog electrical signal of gas sensor output is converted to digital electric signal.Control module 13 is connected to signal processing module 12, can
To be single-chip microcomputer, warning message, such as music, note, voice etc. are stored with, extra memory module storage sound can also be used
Frequency information.Alarm module 14, the control module 13 is connected to, for sending alert audio signal.Alarm module 14 can wrap
Include audio output unit and buzzer.
Reference picture 2, Fig. 2 are another structural representations for the imflammable gas detection alarm that the embodiment of the present invention one provides
Figure, as described in Figure 2, control module 13 includes：Data storage cell 131 and data transmission unit 132.
Wherein, data storage cell 131 is connected to signal processing module 12, for storing imflammable gas volume fraction
Predetermined threshold value and alarming value, when the actually detected imflammable gas volume fraction arrived is higher than predetermined threshold value, high level is exported, is touched
The audio output unit in alarm module 14 and buzzer work are sent out, while alarm signal output valve data transmission unit 132
Data transmission unit 132, for realizing being wirelessly transferred for alarm signal between the alarm so that a place detects can
During combustion property gas, multiple local alarms can all work, and avoid distant place from being led due to can't hear alert audio
Cause is fled danger too late.Imflammable gas volume fraction, digital electric signal and the report that data transmission unit 132 will detect at present
Alert signal can be sent out in time by wired or wireless way for transmitting to remote monitoring center, the staff of remote monitoring center
Existing problem, quickly makes emergency response.
Specifically, exemplified by detecting the methane in air, the aerial explosion limit of methane is 5%~15%, can be with
The predetermined threshold value of the gas volume fraction of methane is 5% in setting air, when gas sensor module 11 is detected in air
When the gas volume fraction of methane is 5%, control module 13 will export high level signal, and the audio triggered in alarm module 14 is defeated
Go out unit and buzzer work, send a warning, while the data transmission unit 132 in control module 13 leads to warning message
The wireless transmissions such as WiFi, ZigBee or bluetooth are crossed to other alarms so that multiple local alarms are same
When work, avoid the place apart from hazardous area farther out from due to can't hear warning message causing to flee danger scene too late.Together
When data transmission unit 132 by monitor at present Methane in Air gas volume fraction, output digital electric signal size and
Alarm signal passes through the wire transmission modes such as the cable either nothing such as the mobile communication such as 2G, 3G, 4G or Wifi, ZigBee, bluetooth
Line communication mode is transmitted to remote monitoring center so that the staff of remote monitoring center can pinpoint the problems in time, quickly
Make emergency response.
As shown in Fig. 2 imflammable gas detection alarm also includes：Power module 17, it is respectively connecting to gas sensing mould
Block 11, signal processing module 12, control module 13 and alarm module 14, for for gas sensing module 11, signal processing module
12nd, control module 13, alarm module 14 and its interlock circuit power supply, that is, detect the circuit in alarm for imflammable gas
Power supply.
The operation principle for the imflammable gas detection alarm that the present embodiment provides：Semiconductor gas sensor will detect
Imflammable gas volume fraction be transformed to analog electrical signal, be sent on A/D converter and realize analog/digital conversion, after conversion
Digital electric signal be sent to single-chip microcomputer.Single-chip microcomputer is stored with the volume fraction of current imflammable gas and the letter of digital electric signal
Breath.When the volume fraction of imflammable gas is higher than predetermined threshold value, when digital electric signal is higher than alarming value, warning message is exported
Be worth alarm module, alarm module receives alarm signal, sends alert audio, while single-chip microcomputer by data transmission unit by mesh
Before volume fraction, digital electric signal and the alarm signal of the imflammable gas that detect wirelessly transmit to remote monitoring
Center so that the staff of remote monitoring center can pinpoint the problems in time, quickly make emergency response.
The imflammable gas detection alarm that the present embodiment provides is detected by highly sensitive combustible gas sensor
Imflammable gas volume fraction, when imflammable gas volume fraction is higher than predetermined threshold value, transmission alarm signal to alarm module,
And alarm signal is sent to using wired or Radio Transmission Technology by data transmission unit alarm and the distal end of surrounding
Surveillance center, improve the accuracy of imflammable gas detection, timely alert, the work people allowed near hazardous area
Member flees danger place in time, and allows the staff of remote monitoring center quickly to make emergency response, reduces casualties.
Embodiment two
The present embodiment on the basis of embodiment one, for imflammable gas detect alarm add display function and manually
Alarm key, Fig. 3 are the structural representations for the imflammable gas detection alarm that the embodiment of the present invention two provides.As illustrated,
Imflammable gas detection alarm also includes display module 15, is connected respectively with control module 13 and alarm module 14；Report manually
Alert button 16 is connected to alarm module 14, is worked for manually booting the alarm module 14.
Display module 15, the control module 13 is connected to, for showing imflammable gas volume fraction in present air
Scope.Wherein, display module 15 can be arranged on alarm, can also be arranged on workshop, scientific research institution laboratory
And on the wall in other places for needing imflammable gas detection, an alarm can configure at least one display module 15,
Multiple places are distributed in, are easy to staff to check.
Display module 15 includes：At least one light source, for indicating different imflammable gas volumes using different colours
The scope of fraction.Display module 15 can show the body of different imflammable gas with the light of the different colours of a light source
Fraction scope, different temperature ranges can also be indicated with the multiple light sources of different colours, such as being represented with green can
The volume fraction of combustion property gas is low, without any danger；Yellow light represents that the volume fraction of imflammable gas is slightly higher, but deficiency
To cause danger, staff is reminded to pay attention to divulging information；Red light represents that the volume fraction of imflammable gas is higher than predetermined threshold value,
Danger is easily caused, and sends alarm signal, there is provided staff immediate evacuation other staff, and take safety measures, reduce
The volume fraction of imflammable gas in air.
Manual alarm button 16, alarm module 14 is connected to, is worked for manually booting display module 15.Manual alarm is pressed
Key 16 is arranged on the wall or be provided with the equipment and instrument of imflammable gas that staff conveniently touches, as workshop people
Member or laboratory worker find that the volume fraction of imflammable gas in workplace is excessive, for example smell dense smell
Etc. there may be dangerous risk, or when the failure of alarm module 14 does not have timely alert, manual report can be pressed
Alert button 16, or error in staff in imflammable gas operating process cause Combustible Gas Leak, are alarming
Module 14 not yet detects presses manual pull station in time when imflammable gas volume fraction exceedes predetermined threshold value, reminds other
Personnel leave workplace in time, and allow technical staff to investigate problem in time, clear.
Power module 17, be respectively connecting to imflammable gas sensing module 11, signal processing module 12, control module 13,
Alarm module 14 and display module 15, for detecting the circuit power supply in alarm for imflammable gas.
The present embodiment provide imflammable gas detection alarm the course of work can be：To detect the methane in air
Exemplified by, the aerial explosion limit of methane is 5%~15%.When in air without methane oxidizing archaea occurs, do not deposited in air
In the green-light source work of methane gas, now display module, represent that methane gas volume fraction is less than 2% in present air；
If a small amount of leakage of methane gas occurs, now the yellow light sources work of display module, represents methane gas body in present air
Fraction is less than 4%, reminds staff to investigate source of leaks, in time ventilation；If serious methane oxidizing archaea occurs, mould is now shown
Red-light source work in block, representing that methane gas volume fraction is higher than 5% in present air, alarm module 14 works simultaneously,
Alarm signal is sent, reminds staff's technology to leave dangerous matter sources, and pays attention to eliminating danger in time.When generation imflammable gas
Accident, when staff quickly responds than alarm, staff can also start manual pull station 16, carry
Awake other staff leave workplace in time, and allow technical staff to investigate problem in time, clear.
The imflammable gas detection alarm that the present embodiment provides, including imflammable gas sensing module, signal transacting mould
Block, control module, alarm module and display module, flammable volume fraction in air can not only be accurately detected, led to
Safety that the imflammable gas volume fraction crossed in light prompting staff's air of different colours in display module is in etc.
The scope of level, and manually can carry out manual alarm by alarm button, remind other staff leave workplace in time, and allow skill
Art personnel investigate problem, cleared in time.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of imflammable gas detects alarm, it is characterised in that including：
Gas sensing module, analog electrical signal is converted to for sensing imflammable gas, and by imflammable gas volume fraction；
Signal processing module, the imflammable gas sensing module is connected to, for the analog electrical signal to be converted into numeral
Electric signal, and the digital electric signal is exported to control module；
Control module, signal processing module is connected to, for receiving and responding the digital electric signal；
Alarm module, the control module is connected to, for sending alert audio signal.
2. imflammable gas according to claim 1 detects alarm, it is characterised in that the gas sensing module is half
Conductor gas sensor.
3. imflammable gas according to claim 1 detects alarm, it is characterised in that the imflammable gas volume integral
It is linear between several and described analog electrical signal.
4. imflammable gas according to claim 1 detects alarm, it is characterised in that the control module also includes：
Data storage cell and data transmission unit.
5. imflammable gas according to claim 4 detects alarm, it is characterised in that the data storage cell, uses
In the predetermined threshold value and alarming value of storage imflammable gas volume fraction.
6. imflammable gas according to claim 4 detects alarm, it is characterised in that the data transmission unit, uses
Warning message is wirelessly transferred between the alarm is realized.
7. imflammable gas according to claim 1 detects alarm, it is characterised in that also including display module, connection
To the control module, for showing the scope of imflammable gas volume fraction in present air.
8. imflammable gas according to claim 7 detects alarm, it is characterised in that the display module includes：Extremely
A few light source, for indicating the scope of different imflammable gas volume fractions using different colours.
9. imflammable gas according to claim 1 detects alarm, it is characterised in that also including manual alarm button,
The alarm module is connected to, for manually booting the alarm module work.
10. imflammable gas according to any one of claim 1 to 9 detects alarm, it is characterised in that also includes：
Power module, it is respectively connecting to the gas sensing module, the signal processing module, the control module, the alarm mould
Block and display module, for detecting the circuit power supply in alarm for the imflammable gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711171243.1A CN107833434A (en) | 2017-11-22 | 2017-11-22 | A kind of imflammable gas detects alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711171243.1A CN107833434A (en) | 2017-11-22 | 2017-11-22 | A kind of imflammable gas detects alarm |
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| Publication Number | Publication Date |
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| CN107833434A true CN107833434A (en) | 2018-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01211099A (en) * | 1988-02-19 | 1989-08-24 | New Cosmos Electric Corp | Gas detecting alarm device |
| CN202758465U (en) * | 2012-06-18 | 2013-02-27 | 江苏鸿派新能源发展有限公司 | Fuel leakage alarm protective device for biomass generating set |
| CN203824977U (en) * | 2013-12-15 | 2014-09-10 | 中国科学院大连化学物理研究所 | Environmental harmful gas concentration detection device |
| CN104200601A (en) * | 2014-09-22 | 2014-12-10 | 西北民族大学 | Automatic fire alarm system based on 51 single-chip processor |
| CN205486677U (en) * | 2016-04-01 | 2016-08-17 | 湖南工业大学 | Combustible gas leakage alarm device based on AT89S52 singlechip |
-
2017
- 2017-11-22 CN CN201711171243.1A patent/CN107833434A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01211099A (en) * | 1988-02-19 | 1989-08-24 | New Cosmos Electric Corp | Gas detecting alarm device |
| CN202758465U (en) * | 2012-06-18 | 2013-02-27 | 江苏鸿派新能源发展有限公司 | Fuel leakage alarm protective device for biomass generating set |
| CN203824977U (en) * | 2013-12-15 | 2014-09-10 | 中国科学院大连化学物理研究所 | Environmental harmful gas concentration detection device |
| CN104200601A (en) * | 2014-09-22 | 2014-12-10 | 西北民族大学 | Automatic fire alarm system based on 51 single-chip processor |
| CN205486677U (en) * | 2016-04-01 | 2016-08-17 | 湖南工业大学 | Combustible gas leakage alarm device based on AT89S52 singlechip |
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Application publication date: 20180323 |