CN207611033U - The detecting system of a variety of pernicious gases in exhaust gas is discharged in a organized way in a kind of coal-burning power plant - Google Patents
The detecting system of a variety of pernicious gases in exhaust gas is discharged in a organized way in a kind of coal-burning power plant Download PDFInfo
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- CN207611033U CN207611033U CN201721901429.3U CN201721901429U CN207611033U CN 207611033 U CN207611033 U CN 207611033U CN 201721901429 U CN201721901429 U CN 201721901429U CN 207611033 U CN207611033 U CN 207611033U
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Abstract
The detecting system of a variety of pernicious gases in exhaust gas is discharged in a organized way by a kind of coal-burning power plant of the utility model, including：Smoke collecting device and flue gas inspection device.Smoke collecting device includes：Sequentially connected sampling pipe, dedusting mechanism and vacuum pump.Flue gas inspection device includes：Ammonia detection unit, sulfur dioxide detection unit, Carbon Monoxide Detection unit, main control unit and display unit.Vacuum pump is connected with ammonia detection unit, sulfur dioxide detection unit and Carbon Monoxide Detection unit.The digital signal of three kinds of gas of main control unit pair conversion, which is handled and is transferred to display unit, to be shown.The detecting system acquires the gas in flue by smoke collecting device, is detected and alarms by 3 kinds of ammonia detection unit, sulfur dioxide detection unit and Carbon Monoxide Detection unit pair pernicious gases, 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 coal-burning power plant discharge in a organized way it is more in exhaust gas
The detecting system of kind pernicious gas.
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.Some existing gas detection equipments are detected for pure gas, cannot be simultaneously
A variety of pernicious gases are detected.It needs that multiple detection devices for gas with various are arranged, it is higher that there are costs, and installation is not
The inconvenient problem of convenient and data acquisition.
Utility model content
It is discharged in exhaust gas in a organized way in order to solve the above technical problems, the purpose of this utility model is to provide a kind of coal-burning power plant
The detecting system of a variety of pernicious gases can be detected and alarm to 3 kinds of pernicious gases simultaneously, it can be ensured that power-plant flue gas discharge is full
Sufficient standard.
The detecting system of a variety of pernicious gases in exhaust gas is discharged in a organized way by a kind of coal-burning power plant of the utility model, including：
Smoke collecting device and flue gas inspection device；
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,
Main control unit and display 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 handle and be transferred to display unit by serial ports showing to digital signal.
In the detecting system that a variety of pernicious gases in exhaust gas discharge in a organized way in the coal-burning power plant of the utility model, the ammonia
Gas sensor, SO 2 sensor and carbon monoxide transducer are respectively arranged in 3 gas chambers, the output end tracheae of vacuum pump
3 gas chambers are connected in series together.
In the detecting system that a variety of pernicious gases in exhaust gas discharge in a organized way in the coal-burning power plant of the utility model, the cigarette
Gas detection device further includes the input unit being connected with the main control unit.
In the detecting system that a variety of pernicious gases in exhaust gas discharge in a organized way in the coal-burning power plant of the utility model, the cigarette
Gas detection device further includes the alarm unit being connected with the main control unit.
In the detecting system that a variety of pernicious gases in exhaust gas discharge in a organized way in the coal-burning power plant of the utility model, the report
Alert unit includes the LED light of 3 different colours for carrying out light warning exceeded to 3 kinds of pernicious gases respectively.
In the detecting system that a variety of pernicious gases in exhaust gas discharge in a organized way in the coal-burning power plant of the utility model, the cigarette
Gas detection device further includes the vacuum pump control circuit that the flow to vacuum pump being connected with main control unit is controlled.
The detecting system of a variety of pernicious gases in exhaust gas is discharged in a organized way by a kind of coal-burning power plant of the utility model, passes through cigarette
Gas harvester acquires the gas in flue, passes through ammonia detection unit, sulfur dioxide detection unit and Carbon Monoxide Detection list
3 kinds of pernicious gases of member pair are detected and alarm, it can be ensured that power-plant flue gas discharge meets standard.
Description of the drawings
Fig. 1 is that the detecting system of a variety of pernicious gases in exhaust gas is discharged in a organized way by a kind of coal-burning power plant of the utility model
Structure diagram；
Fig. 2 is the structure diagram of ammonia detection unit；
Fig. 3 is the structure diagram of sulfur dioxide detection unit；
Fig. 4 is the structure diagram of Carbon Monoxide Detection unit.
Specific implementation mode
The detection system of a variety of pernicious gases in exhaust gas is discharged in a organized way in a kind of coal-burning power plant of the utility model as shown in Figure 1
System, including：Smoke collecting device and flue gas inspection device.The smoke collecting device includes：Sequentially connected sampling pipe 101,
Dedusting mechanism 102 and vacuum pump 103.When it is implemented, dedusting mechanism 102 may also set up in sampling pipe 101, flue gas is sampling
Water-dust removing is directly carried out in pipe 101 in flow process.
Flue gas inspection device includes：Ammonia detection unit 1, sulfur dioxide detection unit 2, Carbon Monoxide Detection unit 3, master
Control unit 4 and display unit 5.The vacuum pump 103 is aoxidized with the ammonia detection unit 1, sulfur dioxide detection unit 2 and one
Carbon detection unit 3 is connected.
As shown in Figures 2 to 4, the ammonia detection unit 1 includes sequentially connected ammonia gas sensor 11, first voltage turn
Change circuit 12, the first amplifying circuit 13 and the first A/D converter circuit 14.The sulfur dioxide detection unit 2 includes sequentially connected
SO 2 sensor 21, second voltage conversion circuit 22, the second amplifying circuit 23 and the second A/D converter circuit 24.One oxygen
It includes sequentially connected carbon monoxide transducer 31, tertiary voltage conversion circuit 32, third amplifying circuit 33 to change carbon detection unit 3
With third A/D converter circuit 34.Ammonia gas sensor 11, SO 2 sensor 21 and carbon monoxide transducer 31 are respectively arranged at 3
In a gas chamber, 3 gas chambers are connected in series together by the output end tracheae of vacuum pump 103.
Ammonia gas sensor 11 is used to the ammonia concentration detected being converted into current signal transfer to convert electricity to first voltage
Road 12.First voltage conversion circuit 12 is output to the first amplifying circuit 13 again for current signal to be converted into voltage signal.The
One amplifying circuit 13 is used for output after voltage signal enhanced processing to the first A/D converter circuit 14.First A/D converter circuit 14 is used
In amplified voltage signal is converted to digital signal.
SO 2 sensor 21 is used to the sulfur dioxide concentration detected being converted into current signal transfer to the second electricity
Voltage conversion circuit 22.Second voltage conversion circuit 22 is used to current signal being converted into voltage signal to be output to the second amplification electricity again
Road 23.Second amplifying circuit 23 is used for output after voltage signal enhanced processing to the second A/D converter circuit 24.Second AD conversion
Circuit 24 is used to amplified voltage signal being converted to digital signal.
Carbon monoxide transducer 31 is used to the carbonomonoxide concentration detected being converted into current signal transfer to third electricity
Voltage conversion circuit 32.Tertiary voltage conversion circuit 32 is used to current signal being converted into voltage signal to be output to third amplification electricity again
Road 33.Third amplifying circuit 33 is used for output after voltage signal enhanced processing to third A/D converter circuit 34.Third AD conversion
Circuit 34 is used to amplified voltage signal being converted to digital signal.
First A/D converter circuit 14, the second A/D converter circuit 24 and third A/D converter circuit 34 respectively with main control unit
4 are connected.Main control unit 4 handle and be transferred to display unit 5 by serial ports showing to digital signal.
Further, flue gas inspection device further includes the input unit 6 being connected with the main control unit 4.Input unit 6
For inputting calibration information, equipment needs to carry out calibration calibration before dispatching from the factory, when being demarcated using normal concentration gas, Ke Yitong
Input standard gas concentration value is crossed to be corrected to the numerical value shown by display unit 5.
Further, flue gas inspection device further includes the alarm unit 7 being connected with the main control unit 4.Alarm unit 7
Include the LED light of 3 different colours for carrying out light warning exceeded to 3 kinds of pernicious gases respectively.
Further, flue gas inspection device further includes that the flow to vacuum pump 103 being connected with main control unit 4 is controlled
The vacuum pump control circuit 8 of system.
When it is implemented, main control unit 4 uses STM32F103c microcontrollers.Ammonia gas sensor 11 is sensed using CITY ammonias
Device 3E500SE, Specifeca tion speeification：0~500ppm of measurement range, maximum load (extension) 500ppm, -20 DEG C of temperature range~
+ 40 DEG C, resolution ratio ＜ 2.5ppm, 35 ± 15nA/ppm of output signal.SO 2 sensor 21 is passed using CITY sulfur dioxide
Sensor 3SF/F, Specifeca tion speeification：0~2000ppm of measurement range, maximum load (extension) 5000ppm, -20 DEG C of temperature range
~+50 DEG C, resolution ratio 1ppm, 100 ± 20nA/ppm of output signal.Carbon monoxide transducer 31 is sensed using CITY carbon monoxide
Device 3F/F, Specifeca tion speeification：0~4000ppm of measurement range, maximum load (extension) 20000ppm, -20 DEG C of temperature range~
+ 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 (6)
1. the detecting system of a variety of pernicious gases in exhaust gas is discharged in a organized way by a kind of coal-burning power plant, which is characterized in that including：Flue gas
Harvester and flue gas inspection device；
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, master control
Unit and display 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 digital signal handle and be transferred to display unit by serial ports showing.
2. the detecting system of a variety of pernicious gases in exhaust gas, feature are discharged in a organized way by coal-burning power plant as described in claim 1
It is, the ammonia gas sensor, SO 2 sensor and carbon monoxide transducer are respectively arranged in 3 gas chambers, vacuum pump
Output end tracheae 3 gas chambers are connected in series together.
3. the detecting system of a variety of pernicious gases in exhaust gas, feature are discharged in a organized way by coal-burning power plant as described in claim 1
It is, the flue gas inspection device further includes the input unit being connected with the main control unit.
4. the detecting system of a variety of pernicious gases in exhaust gas, feature are discharged in a organized way by coal-burning power plant as described in claim 1
It is, the flue gas inspection device further includes the alarm unit being connected with the main control unit.
5. the detecting system of a variety of pernicious gases in exhaust gas, feature are discharged in a organized way by coal-burning power plant as claimed in claim 4
It is, the alarm unit includes the LED indication of 3 different colours for carrying out light warning exceeded to 3 kinds of pernicious gases respectively
Lamp.
6. the detecting system of a variety of pernicious gases in exhaust gas, feature are discharged in a organized way by coal-burning power plant as described in claim 1
It is, the flue gas inspection device further includes the vacuum pump control that the flow to vacuum pump being connected with main control unit is controlled
Circuit processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721901429.3U CN207611033U (en) | 2017-12-29 | 2017-12-29 | The detecting system of a variety of pernicious gases in exhaust gas is discharged in a organized way in a kind of coal-burning power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721901429.3U CN207611033U (en) | 2017-12-29 | 2017-12-29 | The detecting system of a variety of pernicious gases in exhaust gas is discharged in a organized way in a kind of coal-burning power plant |
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| Publication Number | Publication Date |
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| CN207611033U true CN207611033U (en) | 2018-07-13 |
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| CN201721901429.3U Active CN207611033U (en) | 2017-12-29 | 2017-12-29 | The detecting system of a variety of pernicious gases in exhaust gas is discharged in a organized way in a kind of coal-burning power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663488A (en) * | 2018-07-16 | 2018-10-16 | 苏州仕净环保科技股份有限公司 | One kind of multiple exhaust gas on-line measuring devices |
-
2017
- 2017-12-29 CN CN201721901429.3U patent/CN207611033U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663488A (en) * | 2018-07-16 | 2018-10-16 | 苏州仕净环保科技股份有限公司 | One kind of multiple exhaust gas on-line measuring devices |
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