CN208255193U - Flue gas detector that is a kind of while detecting nitrogen oxides and ammonia - Google Patents
Flue gas detector that is a kind of while detecting nitrogen oxides and ammonia Download PDFInfo
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- CN208255193U CN208255193U CN201820953895.4U CN201820953895U CN208255193U CN 208255193 U CN208255193 U CN 208255193U CN 201820953895 U CN201820953895 U CN 201820953895U CN 208255193 U CN208255193 U CN 208255193U
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Abstract
The utility model relates to gas detection equipment technical fields, flue gas detector that is specifically a kind of while detecting nitrogen oxides and ammonia, shell including hollow setting, shell one end is equipped with opening, and opening is equipped with inclined gas guide board, and enclosure interior is equipped with filter and sensor, filter is arranged in opening inner side, sensor is arranged on the inside of filter, and the side of shell is equipped with gas vent, and the inside of filter is arranged in gas vent.The utility model introduces a gas into shell, and gas stops certain time inside housings, improves the accuracy of whole detection.
Description
Technical field
It is specifically a kind of while detecting nitrogen oxides and ammonia the utility model relates to gas detection equipment technical field
Flue gas detector.
Background technique
Different wastes can be generated in chemical reaction process.Solid, liquid, gas form waste will appear.
The commonly toxic and harmful gas such as ammonia, hydrogen sulfide in gaseous exhaust object, seriously pollute environment.Industrial tail gas in order to prevent
Ammonia in discharge gas pollutes atmosphere, it is ensured that the gas for finally draining into atmosphere meets environmental requirement, in exhaust emission pipeline
The detection device of upper setting tail gas, for the concentration of real-time detection ammonia in gas gas.
The ammonia detection device of the prior art mostly uses laser measurer, laser measurer by gas dust, water and
Other gas interference effects are larger, and the price of laser is higher.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of existing technologies, and provides a kind of while detecting nitrogen oxidation
The flue gas detector of object and ammonia.Because of NOXDetection device cost is relatively low, strong antijamming capability, and equipment cost is low, therefore
NO can be passed throughXContent detection measure NH indirectly3Content.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:
Flue gas detector that is a kind of while detecting nitrogen oxides and ammonia, including the first detection device and the second detection dress
It sets, the first detection device, second detection device are separately positioned on pipeline.First detection device, second detection device include
The shell of hollow setting, shell one end are equipped with opening, and one end of opening is arranged inside pipeline.Opening is equipped with inclined gas
Deflector, gas guide board introduce gas into shell.Enclosure interior is equipped with filter and sensor, and filter setting is being open
Inside, sensor are arranged on the inside of filter, and gas is detected after filter filters dust.Sensor is nitrogen oxides
Sensor, for detecting the amount of nitrogen oxides in tail gas.The side of shell is equipped with gas vent, and gas vent setting is being filtered
The inside of device, gas after tested are entered in pipeline by gas vent by shell.Second detection device and the first detection
Apparatus structure is essentially identical, the difference is that, in second detection device, catalyst is equipped between filter and sensor.
The filter is dust-filtering net, and the solid impurities such as dust in gas are filtered out, and is reduced to sensor
Damage.
The sensor is installed inside housings by bracket.
Sensor in first detection device, second detection device is separately connected external controller.
The working principle of the utility model are as follows:
The concentration of nitrogen oxides in first detection device detection gas；Catalyst is set in second detection device, in gas
Ammonia and nitrogen oxides occur under the effect of the catalyst it is following chemically react, NH3+NOX→N2+H2O or NH3+O2→NOX+
H2O, above-mentioned reaction can change the nitrous oxides concentration of second detection device detection.First detection device and second detection device point
Nitrous oxides concentration testing result controller, the NO that controller is measured according to two detection devices are not transmitted toXContent
Difference, calculate NH3Concentration.
The utility model beneficial effect achieved is:
The utility model effectively protects sensor, extends the service life of sensor.
The utility model introduces a gas into shell, and gas stops certain time inside housings, improves whole detection
Accuracy.
Pass through NOXContent detection measure NH indirectly3Content, detection accuracy is high, and equipment cost is low.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the utility model subjectivity structural schematic diagram；
In figure: 1, gas pipeline；2, shell；3, bracket；4, sensor；5, filter；6, gas vent；7, gas flow guiding
Plate；8, the first detection device；9, second detection device；10, denitrating catalyst.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment one:
As shown in Figure 1, a kind of flue gas detector for detecting nitrogen oxides and ammonia simultaneously, including the first detection device 8 and
Second detection device 9, the first detection device 8, second detection device 9 are separately positioned on the two sides up and down of gas pipeline 1.First inspection
Surveying device 8, second detection device 9 includes hollow shell 2, and shell 2 is mounted on gas pipeline 1, vertical with gas pipeline 1
Setting.2 one end of shell is equipped with opening, and one end of opening is inserted into inside gas pipeline 1.Opening is equipped with inclined gas guide board
7, gas guide board 7 and gas flow direction are on the contrary, enter gas in shell 2.It is equipped with filter 5 inside shell 2 and passes
Sensor 4, for the setting of filter 5 in opening inner side, filter 5 is dust-filtering net.The setting of sensor 4 is in 5 inside of filter.Shell
2 side is equipped with gas vent 6, and the inside of filter 5 is arranged in gas vent 6.
Second detection device 9 and 8 structure of the first detection device are essentially identical, the difference is that, second detection device 9
Denitrating catalyst 10 is equipped between interior, filter 5 and sensor 4.
The sensor 4 is mounted on inside shell 2 by bracket 3, and sensor 4 is NOx sensor, two detections
Sensor 4 in device is separately connected peripheral control unit.
Due to NH in gas3And NOXUnder denitrating catalyst effect, following chemical reaction: NH occurs3+NOX→N2+H2O,
Wherein NH3And NOXFor 1:1 reaction, therefore, the NO consumed is reactedXConcentration is NH3Concentration, pass through calculate first detection dress
The difference for setting the testing result of 8 and second detection device 9 just can calculate NH3Concentration.
Embodiment two
The present embodiment is basically the same as the first embodiment, the difference is that, in second detection device 9, filter 5 and sensing
Ammoxidation catalyst is equipped between device 4.
NH in gas3Under the action of oxidation catalyst, following reaction: NH occurs3+O2→NOX+H2O, wherein NH3Instead
The NO of same ratio should be generatedX, therefore, react the NO of generationXConcentration is NH3Concentration, what the second detector 9 was measured
NOXThe NO that concentration and the first detector 8 are measuredXThe difference of concentration, as NH3Concentration.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of flue gas detector for detecting nitrogen oxides and ammonia simultaneously, which is characterized in that including the first detection device and the
Two detection devices, the first detection device, second detection device include the shell of hollow setting, and shell one end is equipped with opening, opens
Inclined gas guide board is equipped at mouthful, enclosure interior is equipped with filter and sensor, and filter setting is in opening inner side, sensing
Device is arranged on the inside of filter, and sensor is NOx sensor, and the side of shell is equipped with gas vent, gas vent setting
In the inside of filter, in second detection device, catalyst is equipped between filter and sensor.
2. a kind of flue gas detector for detecting nitrogen oxides and ammonia simultaneously according to claim 1, which is characterized in that institute
Stating filter is dust-filtering net.
3. a kind of flue gas detector for detecting nitrogen oxides and ammonia simultaneously according to claim 1, which is characterized in that institute
Sensor is stated to install inside housings by bracket.
4. a kind of flue gas detector for detecting nitrogen oxides and ammonia simultaneously according to claim 1, which is characterized in that institute
State the first detection device, the sensor in second detection device is separately connected external controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820953895.4U CN208255193U (en) | 2018-06-20 | 2018-06-20 | Flue gas detector that is a kind of while detecting nitrogen oxides and ammonia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820953895.4U CN208255193U (en) | 2018-06-20 | 2018-06-20 | Flue gas detector that is a kind of while detecting nitrogen oxides and ammonia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208255193U true CN208255193U (en) | 2018-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820953895.4U Active CN208255193U (en) | 2018-06-20 | 2018-06-20 | Flue gas detector that is a kind of while detecting nitrogen oxides and ammonia |
Country Status (1)
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|---|---|
| CN (1) | CN208255193U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111239343A (en) * | 2020-02-20 | 2020-06-05 | 北京泰峰科仪技术有限公司 | Gas acquisition and measurement device |
| CN112198282A (en) * | 2020-09-28 | 2021-01-08 | 武汉心界科技有限公司 | Flue gas on-line monitoring equipment |
-
2018
- 2018-06-20 CN CN201820953895.4U patent/CN208255193U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111239343A (en) * | 2020-02-20 | 2020-06-05 | 北京泰峰科仪技术有限公司 | Gas acquisition and measurement device |
| CN112198282A (en) * | 2020-09-28 | 2021-01-08 | 武汉心界科技有限公司 | Flue gas on-line monitoring equipment |
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