CN205538663U - Infrared gas detecting system - Google Patents
Infrared gas detecting system Download PDFInfo
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- CN205538663U CN205538663U CN201620282501.8U CN201620282501U CN205538663U CN 205538663 U CN205538663 U CN 205538663U CN 201620282501 U CN201620282501 U CN 201620282501U CN 205538663 U CN205538663 U CN 205538663U
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- absorption chamber
- shell
- infrared
- infrared gas
- control valve
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 50
- 238000001514 detection method Methods 0.000 claims abstract description 37
- 239000004065 semiconductor Substances 0.000 claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses an infrared gas detecting system, including the detection shell of turriform form, the upper portion of detecting the shell is provided with the infrared light source device, and the lower part is provided with the test section, the test section includes preceding absorption chamber and post -absorption room, the indoor semiconductor sensor group that is provided with respectively of preceding absorption chamber and post -absorption, and semiconductor sensor group is connected with the controller jointly, the upper portion intercommunication that detects the shell has the intake pipe, is provided with the control valve in the intake pipe, and is provided with the hemisphere spheroid of giving vent to anger at the tip of intake pipe, the lower part intercommunication that detects the shell has the outlet duct, is provided with the control valve on the outlet duct. The utility model relates to a rationally, have the advantage of measurement accuracy height, good reliability, continuous operation for a long time, and the field usage only needs zero point and range punctuate, do not need control phase and light path balanced, left out the thermostatic control unit.
Description
Technical field
This utility model belongs to gas detecting system field, specifically, relates to a kind of infrared gas detection system.
Background technology
Detector used by existing infrared gas analyser is microphony capacitance detector, use the infrared gas analyser of microphony capacitance detector, by variation of ambient temperature impact analysis data, analyze air chamber and require constant temperature, reference air chamber, two-way light source, light source and air chamber is needed to need phase place to adjust and optical-circuit balance, service life is short, low precision.
So, for the technician, problem demanding prompt solution is to develop a kind of infrared gas detection system, reasonable in design, make use of nondixpersive infrared principle of absorption, i.e. utilize the infrared attenuation by absorption of certain wavelength to measure the concentration value of gas, front absorption chamber is connected by semiconductor transducer in rear absorption chamber, produced by semiconductor transducer and analyze the signal of telecommunication, it is high that this detector has certainty of measurement, good reliability, can the advantage of long continuous operation, and onsite application has only to zero point and range punctuate, it is not required to adjust phase place and optical-circuit balance, eliminate temperature control unit.
Summary of the invention
The technical problems to be solved in the utility model is to overcome drawbacks described above, a kind of infrared gas detection system is provided, reasonable in design, make use of nondixpersive infrared principle of absorption, i.e. utilize the infrared attenuation by absorption of certain wavelength to measure the concentration value of gas, front absorption chamber is connected by semiconductor transducer in rear absorption chamber, produced by semiconductor transducer and analyze the signal of telecommunication, it is high that this detector has certainty of measurement, good reliability, can the advantage of long continuous operation, and onsite application has only to zero point and range punctuate, it is not required to adjust phase place and optical-circuit balance, eliminate temperature control unit.
For solving the problems referred to above, this utility model be the technical scheme is that
A kind of infrared gas detection system, it is characterised in that including that the detection shell of turriform shape, the top of detection shell are provided with infrared light source device, bottom is provided with detection part；Described test section divide include front absorption chamber and rear absorption chamber, front absorption chamber and rear absorption chamber in be respectively arranged with semiconductor transducer group, semiconductor transducer group connects jointly controller；The top of described detection shell is communicated with air inlet pipe, and air inlet pipe is provided with control valve, and the end of air inlet pipe is provided with hemispherical goes out balloon body；The bottom of described detection shell is communicated with escape pipe, and escape pipe is provided with control valve；Said two control valve connects controller.
Improving as one, described semiconductor transducer group includes two semiconductor transducers extending into front absorption chamber or rear absorption chamber different depth, and all of semiconductor transducer connects controller.
Improving as one, described infrared light source device includes the hanger bar being suspended on detection enclosure upper end, and hanger bar is hung with infrared light supply.
Improving as one, described controller uses PLC and peripheral circuit thereof.
Improving as one, described front absorption chamber is to separate in detection shell with breathable plastic plate；Described rear absorption chamber uses breathable plastic plate to separate in detection shell；Described front absorption chamber and rear absorption chamber can be adjacent, it is also possible to non-conterminous.
Owing to have employed technique scheme, compared with prior art, this utility model is reasonable in design, make use of nondixpersive infrared principle of absorption, i.e. utilize the infrared attenuation by absorption of certain wavelength to measure the concentration value of gas, front absorption chamber is connected by semiconductor transducer in rear absorption chamber, produced by semiconductor transducer and analyze the signal of telecommunication, this detector have certainty of measurement height, good reliability, can the advantage of long continuous operation, and onsite application has only to zero point and range punctuate, it is not required to adjust phase place and optical-circuit balance, eliminates temperature control unit.
The utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings simultaneously.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of embodiment of this utility model.
Detailed description of the invention
Embodiment:
As shown in Figure 1, a kind of infrared gas detection system, including the detection shell of turriform shape, the top of detection shell is provided with infrared light source device, and bottom is provided with detection part.
Described test section divides and includes front absorption chamber 9 and rear absorption chamber 10, is respectively arranged with semiconductor transducer group in front absorption chamber 9 and rear absorption chamber 10, and semiconductor transducer group connects jointly controller 3.The top of described detection shell is communicated with air inlet pipe 5, and air inlet pipe 5 is provided with control valve 4, and the end of air inlet pipe 5 is provided with hemispherical goes out balloon body 6, it is possible to ensure entering in detection shell of detected gas uniform and stable.The bottom of described detection shell is communicated with escape pipe 11, and escape pipe 11 is provided with control valve 4.Said two control valve connects controller.
Described semiconductor transducer group includes two semiconductor transducers 1,2 extending into front absorption chamber or rear absorption chamber different depth, and all of semiconductor transducer connects controller 3.In the present embodiment, described controller 3 uses PLC and peripheral circuit thereof.
Described infrared light source device includes the hanger bar 7 being suspended on detection enclosure upper end, and hanger bar 7 is hung with infrared light supply 8.
Described front absorption chamber is to separate in detection shell with breathable plastic plate；Described rear absorption chamber uses breathable plastic plate to separate in detection shell；Described front absorption chamber and rear absorption chamber can be adjacent, it is also possible to non-conterminous.
This utility model is reasonable in design, make use of nondixpersive infrared principle of absorption, i.e. utilize the infrared attenuation by absorption of certain wavelength to measure the concentration value of gas, front absorption chamber is connected by semiconductor transducer in rear absorption chamber, produced by semiconductor transducer and analyze the signal of telecommunication, this detector have certainty of measurement height, good reliability, can the advantage of long continuous operation, and onsite application has only to zero point and range punctuate, it is not required to adjust phase place and optical-circuit balance, eliminates temperature control unit.
Preferred embodiment of the present utility model described in detail above.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technical staff in the art pass through the available technical scheme of logical analysis, reasoning, or a limited experiment on the basis of existing technology according to design of the present utility model, all should be in the protection domain being defined in the patent claims.
Claims (5)
1. an infrared gas detection system, it is characterised in that including that the detection shell of turriform shape, the top of detection shell are provided with infrared light source device, bottom is provided with detection part；
Described test section divide include front absorption chamber and rear absorption chamber, front absorption chamber and rear absorption chamber in be respectively arranged with semiconductor transducer group, semiconductor transducer group connects jointly controller；
The top of described detection shell is communicated with air inlet pipe, and air inlet pipe is provided with control valve, and the end of air inlet pipe is provided with hemispherical goes out balloon body；The bottom of described detection shell is communicated with escape pipe, and escape pipe is provided with control valve；Said two control valve connects controller.
2. a kind of infrared gas detection system as claimed in claim 1, it is characterised in that described semiconductor transducer group includes two semiconductor transducers extending into front absorption chamber or rear absorption chamber different depth, and all of semiconductor transducer connects controller.
3. a kind of infrared gas detection system as claimed in claim 2, it is characterised in that described infrared light source device includes the hanger bar being suspended on detection enclosure upper end, and hanger bar is hung with infrared light supply.
4. a kind of infrared gas detection system as claimed in claim 3, it is characterised in that described controller uses PLC and peripheral circuit thereof.
5. a kind of infrared gas detection system as claimed in claim 1, it is characterised in that described front absorption chamber is to separate in detection shell with breathable plastic plate；Described rear absorption chamber uses breathable plastic plate to separate in detection shell；Described front absorption chamber and rear absorption chamber can be adjacent, it is also possible to non-conterminous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620282501.8U CN205538663U (en) | 2016-04-07 | 2016-04-07 | Infrared gas detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620282501.8U CN205538663U (en) | 2016-04-07 | 2016-04-07 | Infrared gas detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538663U true CN205538663U (en) | 2016-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620282501.8U Active CN205538663U (en) | 2016-04-07 | 2016-04-07 | Infrared gas detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205538663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031421A (en) * | 2019-04-22 | 2019-07-19 | 南京信大气象科学技术研究院有限公司 | A kind of atmospheric carbon dioxide sky probing measurer |
-
2016
- 2016-04-07 CN CN201620282501.8U patent/CN205538663U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031421A (en) * | 2019-04-22 | 2019-07-19 | 南京信大气象科学技术研究院有限公司 | A kind of atmospheric carbon dioxide sky probing measurer |
| CN110031421B (en) * | 2019-04-22 | 2021-07-20 | 南京信大气象科学技术研究院有限公司 | Atmosphere carbon dioxide high altitude detection instrument |
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| C14 | Grant of patent or utility model | ||
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