CN207611471U - A kind of detection alarm system of a variety of toxic and harmful gas based on Internet of Things - Google Patents
A kind of detection alarm system of a variety of toxic and harmful gas based on Internet of Things Download PDFInfo
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- CN207611471U CN207611471U CN201721895848.0U CN201721895848U CN207611471U CN 207611471 U CN207611471 U CN 207611471U CN 201721895848 U CN201721895848 U CN 201721895848U CN 207611471 U CN207611471 U CN 207611471U
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Abstract
A kind of detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model, which is characterized in that including：Smoke collecting device, flue gas inspection device, Internet of Things wireless communication module and monitoring center.Smoke collecting device is for acquiring the flue gas in flue and being conveyed to flue gas inspection device, flue gas inspection device is used to be acquired ammonia, sulfur dioxide and the carbon monoxide in flue gas and processing is converted into digital signal, Internet of Things wireless communication module be used for will treated that digital signal is sent to aggregation node, the digital signal received is sent to monitoring center by aggregation node by mobile communications network.A kind of detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model can carry out remote monitoring and alarm to 3 kinds of pernicious gases simultaneously, it can be ensured that power-plant flue gas discharge meets standard.
Description
Technical field
The utility model is related to environmental monitoring technology field more particularly to a kind of a variety of poisonous and harmful gas based on Internet of Things
The detection alarm system of body.
Background technology
China's thermal power output accounts for gross generation 70% or so, and coal accounts for the 90% of fired power generating unit fuel, with its people
Economic rapid growth, power generation capacity are grown rapidly, the atmosphere polluting problem getting worse caused by fire coal, the especially northern winter
The period atmosphere polluting problem that heats in season is even more serious.In the exhaust gas of power plant emission containing carbon monoxide, sulfur dioxide, ammonia,
A variety of toxic and harmful gas such as nitrogen dioxide, if excess emitters will directly affect China's atmosphere quality.In order to ensure combustion
Coal-fired plant's discharge amount of exhaust gas needs a kind of detection alarm system in safe range, to a variety of toxic and harmful gas in flue into
Row quickly detects and carries out exceeded alarm.
The detection device of current ammonia is divided into two kinds：One kind is hand-held detecting instrument, convenient in the area of uncontrollable discharge
Domain is measured in real time, but testing staff's presence detection is needed when detection, and high labor cost cannot achieve monitoring in real time in 24 hours；
Another to discharge the escaping of ammonia detecting system in exhaust gas in a organized way, setting can detect ammonia escape amount near flue and carry out in real time
Data store, but still need to staff's timing and go collection in worksite detection data.And current detection device is mostly to be directed to single gas
Physical examination is surveyed, and cannot be detected simultaneously to a variety of pernicious gases.It needs that multiple detection devices for gas with various are arranged, exists
Cost is higher, the problem that installation is inconvenient and data acquisition is inconvenient.
Utility model content
In order to solve the above technical problems, the purpose of this utility model be to provide it is a kind of a variety of poisonous and harmful based on Internet of Things
The detection alarm system of gas can carry out remote monitoring and alarm to 3 kinds of pernicious gases simultaneously, it can be ensured that power-plant flue gas discharge is full
Sufficient standard.
The utility model provides a kind of detection alarm system of a variety of toxic and harmful gas based on Internet of Things, including：Cigarette
Gas harvester, flue gas inspection device, Internet of Things wireless communication module and monitoring center；
The smoke collecting device includes：Sequentially connected sampling pipe, dedusting mechanism and vacuum pump；
The flue gas inspection device includes：Ammonia detection unit, sulfur dioxide detection unit, Carbon Monoxide Detection unit and
Main control unit；
The vacuum pump is connected with the ammonia detection unit, sulfur dioxide detection unit and Carbon Monoxide Detection unit
It connects；
The ammonia detection unit includes sequentially connected ammonia gas sensor, first voltage conversion circuit, the first amplification electricity
Road and the first A/D converter circuit；
The sulfur dioxide detection unit includes sequentially connected SO 2 sensor, second voltage conversion circuit,
Two amplifying circuits and the second A/D converter circuit；
The Carbon Monoxide Detection unit includes sequentially connected carbon monoxide transducer, tertiary voltage conversion circuit,
Three amplifying circuits and third A/D converter circuit；
First A/D converter circuit, the second A/D converter circuit and third A/D converter circuit are connected with main control unit respectively
It connects, the main control unit carries out processing to digital signal and by treated, signal passes by the Internet of Things wireless communication module
It is defeated to arrive monitoring center.
In the detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model, the ammonia passes
Sensor, SO 2 sensor and carbon monoxide transducer are respectively arranged in 3 gas chambers, and the output end tracheae of vacuum pump is by institute
3 gas chambers are stated to be connected in series together.
In the detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model, the flue gas inspection
It further includes the input unit being connected with the main control unit to survey device.
In the detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model, the flue gas inspection
It further includes the vacuum pump control circuit that the flow to vacuum pump being connected with main control unit is controlled to survey device.
In the detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model, the Internet of Things
Wireless communication module is ZigBee wireless communication modules.
In the detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model, in the monitoring
Pericardium includes data storage cell, display unit and alarm unit, the data storage cell and Internet of Things wireless communication module
The digital signal that is connected that treated to receive main control unit, the display unit are connected with data storage cell to show ammonia
Tolerance, the alarm unit are connected with data storage cell.
In the detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model, the alarm is single
Member includes the LED light of 3 different colours for carrying out light warning exceeded to 3 kinds of pernicious gases respectively.
A kind of detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model, is adopted by flue gas
Acquisition means acquire the gas in flue, and detect ammonia, sulfur dioxide and the carbon monoxide in flue gas by flue gas inspection device,
Again by Internet of Things wireless communication module by monitoring data transmission to monitoring center, it can be achieved that long-range prison to 3 kinds of pernicious gases
Control and alarm, it can be ensured that power-plant flue gas discharge meets standard.
Description of the drawings
Fig. 1 is a kind of structure of the detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model
Block diagram；
Fig. 2 is a kind of flue gas of the detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model
The structure diagram of harvester；
Fig. 3 is a kind of flue gas of the detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model
The structure diagram of detection device；
Fig. 4 is the structure diagram of ammonia detection unit；
Fig. 5 is the structure diagram of sulfur dioxide detection unit；
Fig. 6 is the structure diagram of Carbon Monoxide Detection unit；
Fig. 7 is a kind of monitoring of the detection alarm system of a variety of toxic and harmful gas based on Internet of Things of the utility model
The structure diagram at center.
Specific implementation mode
The detecting system of ammonia in a kind of exhaust gas discharge based on Internet of Things of the utility model is illustrated with reference to attached drawing.
The detecting system of ammonia in a kind of exhaust gas discharge based on Internet of Things of the utility model as shown in Figure 1, including：According to
Smoke collecting device 1, flue gas inspection device 2, Internet of Things wireless communication module 3 and the monitoring center 4 of secondary connection.Smoke collecting
For acquiring the flue gas in flue and being conveyed to flue gas inspection device 2, flue gas inspection device 2 is used for the ammonia in flue gas device 1
Gas, sulfur dioxide and carbon monoxide are acquired and processing is converted into digital signal, and Internet of Things wireless communication module 3 will be for that will locate
Digital signal after reason is sent to aggregation node, and the digital signal received is sent to by aggregation node by mobile communications network
Monitoring center 4.
As shown in Fig. 2, smoke collecting device 1 includes：Sequentially connected sampling pipe 11, dedusting mechanism 12 and vacuum pump 13.
When it is implemented, dedusting mechanism 12 may also set up in sampling pipe 11, flue gas directly carries out in sampling pipe 11 in flow process
Water-dust removing.
As shown in figure 3, flue gas inspection device includes 2：Ammonia detection unit 21, sulfur dioxide detection unit 22, one aoxidize
Carbon detection unit 23 and main control unit 24；The vacuum pump 13 and the ammonia detection unit 21, sulfur dioxide detection unit 22
It is connected with Carbon Monoxide Detection unit 23.
As shown in Figures 4 to 6, ammonia detection unit 21 includes sequentially connected ammonia gas sensor 211, first voltage conversion
Circuit 212, the first amplifying circuit 213 and the first A/D converter circuit 214.The sulfur dioxide detection unit 22 includes being sequentially connected
SO 2 sensor 221, second voltage conversion circuit 222, the second amplifying circuit 223 and the second A/D converter circuit 224.Institute
It includes sequentially connected carbon monoxide transducer 231, tertiary voltage conversion circuit 232, third to state Carbon Monoxide Detection unit 23
Amplifying circuit 233 and third A/D converter circuit 234.Ammonia gas sensor 211, SO 2 sensor 221 and carbon monoxide sensing
Device 231 is respectively arranged in 3 gas chambers, and 3 gas chambers are connected in series together by the output end tracheae of vacuum pump 13.
Ammonia gas sensor 211 is used to the ammonia concentration detected being converted into current signal transfer to convert electricity to first voltage
Road 212.First voltage conversion circuit 212 is output to the first amplifying circuit 213 again for current signal to be converted into voltage signal.
First amplifying circuit 213 is used for output after voltage signal enhanced processing to the first A/D converter circuit 214.First A/D converter circuit
214 by amplified voltage signal for being converted to digital signal.
SO 2 sensor 221 is used to the sulfur dioxide concentration detected being converted into current signal transfer to the second electricity
Voltage conversion circuit 222.Second voltage conversion circuit 222 is output to the second amplification again for current signal to be converted into voltage signal
Circuit 223.Second amplifying circuit 223 is used for output after voltage signal enhanced processing to the second A/D converter circuit 224.2nd AD
Conversion circuit 224 is used to amplified voltage signal being converted to digital signal.
Carbon monoxide transducer 231 is used to the carbonomonoxide concentration detected being converted into current signal transfer to third electricity
Voltage conversion circuit 232.Tertiary voltage conversion circuit 232 is used to current signal being converted into voltage signal to be output to third amplification again
Circuit 233.Third amplifying circuit 233 is used for output after voltage signal enhanced processing to third A/D converter circuit 234.3rd AD
Conversion circuit 234 is used to amplified voltage signal being converted to digital signal.
First A/D converter circuit 214, the second A/D converter circuit 224 and third A/D converter circuit 234 respectively with master control
Unit 24 is connected, and the main control unit 24 carries out processing to digital signal and will by the Internet of Things wireless communication module 3
Signal transmission that treated is to monitoring center 4.
Further, flue gas inspection device 2 further includes the input unit 25 being connected with the main control unit 24.Input is single
Member 25 to equipment before equipment manufacture for carrying out calibration calibration.
Further, flue gas inspection device 2 further includes that the flow to vacuum pump 13 being connected with main control unit 24 carries out
The vacuum pump control circuit 26 of control.
When it is implemented, the Internet of Things wireless communication module is ZigBee wireless communication modules.
As shown in fig. 7, monitoring center 4 includes data storage cell 41, display unit 42 and alarm unit 43.The number
The digital signal that is connected with Internet of Things wireless communication module 3 that treated to receive main control unit 24 according to storage unit 41.It is described
Display unit 42 is connected with data storage cell 41 to show ammonia, sulfur dioxide and the discharge capacity of carbon monoxide.It is described
Alarm unit 43 is connected with data storage cell 41.Alarm unit 43 includes respectively to the exceeded carry out light of 3 kinds of pernicious gases
The LED light of 3 different colours of alarm.
When it is implemented, main control unit 24 uses STM32F103c microcontrollers.Ammonia gas sensor 211 is passed using CITY ammonias
Sensor 3E500SE, Specifeca tion speeification：0~500ppm of measurement range, maximum load (extension) 500ppm, -20 DEG C of temperature range
To+40 DEG C, resolution ratio ＜ 2.5ppm, 35 ± 15nA/ppm of output signal.SO 2 sensor 221 uses CITY sulfur dioxide
Sensor 3SF/F, Specifeca tion speeification：0~2000ppm of measurement range, maximum load (extension) 5000ppm, temperature range -20
DEG C to+50 DEG C, resolution ratio 1ppm, 100 ± 20nA/ppm of output signal.Carbon monoxide transducer 231 uses CITY carbon monoxide
Sensor 3F/F, Specifeca tion speeification：0~4000ppm of measurement range, maximum load (extension) 20000ppm, temperature range -20
DEG C to+50 DEG C, resolution ratio 1ppm, 30 ± 6nA/ppm of output signal.
The above is only the preferred embodiment of the present invention, the thought being not intended to limit the utility model, it is all
Within the spirit and principles of the utility model, it is new to should be included in this practicality for any modification, equivalent replacement, improvement and so on
Within the protection domain of type.
Claims (7)
1. a kind of detection alarm system of a variety of toxic and harmful gas based on Internet of Things, which is characterized in that including：Smoke collecting
Device, flue gas inspection device, Internet of Things wireless communication module and monitoring center；
The smoke collecting device includes：Sequentially connected sampling pipe, dedusting mechanism and vacuum pump；
The flue gas inspection device includes：Ammonia detection unit, sulfur dioxide detection unit, Carbon Monoxide Detection unit and master control
Unit；
The vacuum pump is connected with the ammonia detection unit, sulfur dioxide detection unit and Carbon Monoxide Detection unit；
The ammonia detection unit include sequentially connected ammonia gas sensor, first voltage conversion circuit, the first amplifying circuit and
First A/D converter circuit；
The sulfur dioxide detection unit includes sequentially connected SO 2 sensor, second voltage conversion circuit, second puts
Big circuit and the second A/D converter circuit；
The Carbon Monoxide Detection unit includes that sequentially connected carbon monoxide transducer, tertiary voltage conversion circuit, third are put
Big circuit and third A/D converter circuit；
First A/D converter circuit, the second A/D converter circuit and third A/D converter circuit are connected with main control unit respectively, institute
It states main control unit and processing is carried out to digital signal and by the way that the Internet of Things wireless communication module will treated that signal transmission arrives
Monitoring center.
2. the detection alarm system of a variety of toxic and harmful gas based on Internet of Things as described in claim 1, which is characterized in that
The ammonia gas sensor, SO 2 sensor and carbon monoxide transducer are respectively arranged in 3 gas chambers, the output of vacuum pump
3 gas chambers are connected in series together by end tracheae.
3. the detection alarm system of a variety of toxic and harmful gas based on Internet of Things as described in claim 1, which is characterized in that
The flue gas inspection device further includes the input unit being connected with the main control unit.
4. the detection alarm system of a variety of toxic and harmful gas based on Internet of Things as described in claim 1, which is characterized in that
The flue gas inspection device further includes the vacuum pump control electricity that the flow to vacuum pump being connected with main control unit is controlled
Road.
5. the detection alarm system of a variety of toxic and harmful gas based on Internet of Things as described in claim 1, which is characterized in that
The Internet of Things wireless communication module is ZigBee wireless communication modules.
6. the detection alarm system of a variety of toxic and harmful gas based on Internet of Things as described in claim 1, which is characterized in that
The monitoring center includes data storage cell, display unit and alarm unit, the data storage cell and Internet of Things without
Digital signal that line communication module is connected that treated to receive main control unit, the display unit are connected with data storage cell
It connects to show that ammonia amount, the alarm unit are connected with data storage cell.
7. the detection alarm system of a variety of toxic and harmful gas based on Internet of Things as claimed in claim 6, which is characterized in that
The alarm unit includes the LED light of 3 different colours for carrying out light warning exceeded to 3 kinds of pernicious gases respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721895848.0U CN207611471U (en) | 2017-12-29 | 2017-12-29 | A kind of detection alarm system of a variety of toxic and harmful gas based on Internet of Things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721895848.0U CN207611471U (en) | 2017-12-29 | 2017-12-29 | A kind of detection alarm system of a variety of toxic and harmful gas based on Internet of Things |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207611471U true CN207611471U (en) | 2018-07-13 |
Family
ID=62799859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721895848.0U Active CN207611471U (en) | 2017-12-29 | 2017-12-29 | A kind of detection alarm system of a variety of toxic and harmful gas based on Internet of Things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207611471U (en) |
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2017
- 2017-12-29 CN CN201721895848.0U patent/CN207611471U/en active Active
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