CN202305402U - Infrared gas analyzer - Google Patents
Infrared gas analyzer Download PDFInfo
- Publication number
- CN202305402U CN202305402U CN 201120289542 CN201120289542U CN202305402U CN 202305402 U CN202305402 U CN 202305402U CN 201120289542 CN201120289542 CN 201120289542 CN 201120289542 U CN201120289542 U CN 201120289542U CN 202305402 U CN202305402 U CN 202305402U
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- Prior art keywords
- air chamber
- infrared
- gas analyzer
- unit
- infrared light
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- 238000004458 analytical method Methods 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims description 57
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 238000002203 pretreatment Methods 0.000 abstract 3
- 230000031700 light absorption Effects 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to a gas analyzer, and particularly discloses an infrared gas analyzer. The infrared gas analyzer comprises a pre-treatment unit, a calibration unit and an analysis unit, wherein the analysis unit consists of an infrared light source, an analysis gas chamber and a receiver; the infrared light source is arranged opposite to the receiver; the analysis gas chamber is arranged between the infrared light source and the receiver; and the calibration unit is arranged between the analysis gas chamber and the receiver. The infrared gas analyzer integrates the pre-treatment unit and the calibration unit, has a smaller size, is convenient to carry, and can achieve high-precision measurement and analysis on infrared light absorption characteristic of a sample gas; the calibration unit can automatically calibrate zero correction and measurement range of the tested gas; and the pre-treatment unit can remove liquid composition and particles in the gas to be tested and adjust the gas to be tested to the flow velocity suitable for analysis.
Description
Technical field
The utility model relates to gas analyzer, particularly a kind of portable gas analyser.
Background technology
The hand-held analyzer that uses on the market at present adopts electrochemical principle mostly; Its measuring accuracy is low; It is bigger that the higher carbon monoxide of poor anti jamming capability, particularly concentration is measured influence to sulphuric dioxide, and high concentration sulphuric dioxide is very big to nitric oxide production measurement influence.Part adopts the analytical instrument of infrared absorption method, also only is an analytical equipment, and industrial smoke (appearance gas) can not directly get into analytical instrument, needs the outside that pretreatment unit and instrumental calibration device are provided.External caliberating device so generally is made up of calibrating gas, pretreatment unit, and is bulky, and portable meaning does not exist.
The utility model content
The purpose of the utility model is, a kind of infrared gas analyzer is provided, integrated pretreatment unit with demarcate the unit, can realize sample gas is carried out high-acruracy survey, analysis.
The purpose of the utility model is achieved in that
Infrared gas analyzer; Comprise pretreatment unit, demarcate unit and analytic unit; Said analytic unit is made up of infrared light supply, analysis air chamber and receiver; Said infrared light supply and receiver are oppositely arranged, and analyze air chamber and are arranged between infrared light supply and the receiver, demarcate the unit and are arranged between analysis air chamber and the receiver.
Further, said analysis air chamber comprises air chamber I arranged side by side and air chamber II, fills nitrogen in the said air chamber II, and air chamber I two ends are respectively arranged with sample gas outlet and sample gas inlet, and said air chamber I arranges with the air chamber II edge direction vertical with the infrared light supply transmit direction.
Further, comprise two groups of infrared light supplies, analysis air chamber and receiver at least.
Further, said demarcation unit comprises the demarcation air chamber I and demarcation air chamber II that the edge direction vertical with the infrared light supply transmit direction arranged, and fills nitrogen in the said demarcation air chamber I, demarcates air chamber II and is used to fill marked gas.
Further, said demarcation air chamber II is divided into two and half Room, and edge, the said two and half Room direction vertical with the infrared light supply transmit direction is set up in parallel.
Further, said pretreatment unit comprises condenser, aspiration pump, filtrator and the flow regulator that is communicated with successively, also is provided with pumping equipment on the said condenser.
Further, also be provided with valve between said aspiration pump and the filtrator.
Further, said infrared gas analyzer also comprises control system, and said control system is electrically connected with pretreatment unit, demarcation unit and analytic unit.
Further, said infrared gas analyzer also comprises the calibrating gas inlet, and said valve is a T-valve, and an end of T-valve connects the delivery side of pump of bleeding, and an end connects the inlet of filtrator, and the other end connects the calibrating gas inlet.
The infrared gas analyzer of the utility model, integrated pretreatment unit with demarcate the unit, volume is less, is easy to carry, and can carry out infrared high-acruracy survey, analysis to appearance gas; In further technical scheme, the demarcation unit design is ingenious, is divided into three air chambers, through moving the position of demarcating the unit, can realize zero correction and range designation; Pretreatment unit is simple in structure, but complete function can be removed liquid component, particle in the gas to be measured, and can be with gas regulation to be measured to the flow velocity that is fit to analyze; T-valve is set, can conveniently feeds third party's calibrating gas and read carefully and thoroughly check, and at automatic timing signal; But the suction air displacement falls to analyze the residual sample gas in the air chamber; And when pretreatment unit breaks down, can cut off gas circuit, the protection analytic unit is not contaminated.
Description of drawings
Fig. 1 shows the modular structure synoptic diagram of infrared gas analyzer;
Fig. 2 shows the structural representation of infrared gas analyzer acceptance of the bid cell and analytic unit;
Fig. 3 shows the structural representation of pretreatment unit.
Embodiment
As shown in Figure 1, the infrared gas analyzer of present embodiment comprises pretreatment unit, demarcates unit, analytic unit and control system, and said control system is electrically connected with pretreatment unit, demarcation unit and analytic unit, the operation of control infrared gas analyzer.
Referring to Fig. 2, said analytic unit is made up of infrared light supply 1, analysis air chamber 2 and receiver 3, and said infrared light supply 1 is oppositely arranged with receiver 3, analyzes air chamber 2 and is arranged between infrared light supply 1 and the receiver 3.Said analysis air chamber 2 comprises air chamber I arranged side by side 21 and air chamber II 22; Fill nitrogen in the said air chamber II 22; Air chamber I 21 two ends are respectively arranged with kind gas outlet 24 and appearance gas inlet 23, and said air chamber I 21 arranges with the air chamber II 22 edges direction vertical with the infrared light supply transmit direction.Demarcating unit 4 is arranged between analysis air chamber 2 and the receiver 3; Said demarcation unit 4 comprises the demarcation air chamber I 41 and demarcation air chamber II 42 that the edge direction vertical with the infrared light supply transmit direction arranged; Fill nitrogen in the said demarcation air chamber I 41; Demarcate air chamber II42 and be used to fill marked gas, said demarcation air chamber II 42 is divided into two and half Room 43,44, and said 43,44 edges, the two and half Room direction vertical with the infrared light supply transmit direction is set up in parallel.
It is to send a kind of infrared light that contains specific wavelength that infrared light supply mainly acts on; Analyze air chamber and mainly act on the appearance gas path that provides necessity, have time enough to absorb infrared energy to guarantee gas, and one group of not light absorbing gas circuit is provided, promptly air chamber II as a reference.Because carrying out selectivity to infrared radiation, non-single element gas analysis meeting absorbs; And Lang Baite-Beer law is generally followed in this absorption; When tested gas passed through air chamber I, the dual element gas in the tested gas will absorb infrared energy, because air chamber II one side does not absorb infrared light; In one-period, receiver can receive the infrared light intensity (energy) of 2 varying strengths.Therefore measure infrared light by the energy difference before and after the gas absorption of air chamber I, air chamber II both sides according to Lang Baite-Beer law, can calculate the concentration that absorbs gas according to energy difference.
When carrying out Zero calibration or Measurement and analysis, extracting air is to air chamber I 21, and the demarcation air chamber I 41 that demarcates unit 4 can carry out the zero correction of infrared component and the range designation of lambda sensor to analyzing between air chamber 2 and the receiver 3.After Zero calibration finishes; Demarcating air chamber II 42 moves between air chamber and the receiver; Because two and half Room of demarcating air chamber II 42 are filled with the gas of variable concentrations respectively, these gases can absorb infrared luminous energy, so receiver can be measured this concentration; At this moment adjust measurement data automatically to being inflated concentration according to measured value, attainable range is demarcated automatically.
Can comprise many group infrared light supplies in the infrared gas analyzer, demarcate the unit, analyze air chamber and receiver, the air chamber I in each group analysis air chamber is communicated with successively.
Referring to Fig. 3; Said pretreatment unit comprises condenser 12, aspiration pump 14, T-valve 15, filtrator 16 and the flow regulator 17 that is communicated with successively; Also be provided with pumping equipment 13 on the said condenser 12; One end of said T-valve 15 connects the delivery side of pump of bleeding, and an end connects the inlet of filtrator, and the other end connects the calibrating gas inlet
Should be pointed out that the above embodiment can make those skilled in the art more fully understand the utility model and create, create but limit the utility model never in any form.Therefore; Although creating the utility model with reference to accompanying drawing and embodiment, this instructions carried out detailed explanation,, those skilled in the art are to be understood that; Still can create the utility model and make amendment or be equal to replacement; In a word, all do not break away from the spirit of the utility model creation and the technical scheme and the improvement thereof of scope, and it all should be encompassed in the utility model and create in the middle of the protection domain of patent.
Claims (9)
1. infrared gas analyzer; It is characterized in that: comprise pretreatment unit, demarcate unit and analytic unit; Said analytic unit is made up of infrared light supply, analysis air chamber and receiver; Said infrared light supply and receiver are oppositely arranged, and analyze air chamber and are arranged between infrared light supply and the receiver, demarcate the unit and are arranged between analysis air chamber and the receiver.
2. infrared gas analyzer according to claim 1; It is characterized in that: said analysis air chamber comprises air chamber I arranged side by side and air chamber II; Fill nitrogen in the said air chamber II; Air chamber I two ends are respectively arranged with kind gas outlet and appearance gas inlet, and said air chamber I arranges with the air chamber II edge direction vertical with the infrared light supply transmit direction.
3. infrared gas analyzer as claimed in claim 2 is characterized in that: comprise two groups of infrared light supplies at least, analyze air chamber and receiver.
4. infrared gas analyzer as claimed in claim 3; It is characterized in that:; Said demarcation unit comprises the demarcation air chamber I and demarcation air chamber II that the edge direction vertical with the infrared light supply transmit direction arranged, and fills nitrogen in the said demarcation air chamber I, demarcates air chamber II and is used to fill marked gas.
5. infrared gas analyzer as claimed in claim 4 is characterized in that: said demarcation air chamber II is divided into two and half Room, and edge, the said two and half Room direction vertical with the infrared light supply transmit direction is set up in parallel.
6. like each described infrared gas analyzer in the claim 1 to 5, it is characterized in that: said pretreatment unit comprises condenser, aspiration pump, filtrator and the flow regulator that is communicated with successively, also is provided with pumping equipment on the said condenser.
7. infrared gas analyzer as claimed in claim 6 is characterized in that: also be provided with valve between said aspiration pump and the filtrator.
8. infrared gas analyzer as claimed in claim 7 is characterized in that: said infrared gas analyzer also comprises control system, and said control system is electrically connected with pretreatment unit, demarcation unit and analytic unit.
9. infrared gas analyzer as claimed in claim 7; It is characterized in that: said infrared gas analyzer also comprises the calibrating gas inlet, and said valve is a T-valve, and an end of T-valve connects the delivery side of pump of bleeding; One end connects the inlet of filtrator, and the other end connects the calibrating gas inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120289542 CN202305402U (en) | 2011-08-10 | 2011-08-10 | Infrared gas analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120289542 CN202305402U (en) | 2011-08-10 | 2011-08-10 | Infrared gas analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305402U true CN202305402U (en) | 2012-07-04 |
Family
ID=46374274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120289542 Expired - Fee Related CN202305402U (en) | 2011-08-10 | 2011-08-10 | Infrared gas analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202305402U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410987A (en) * | 2011-08-10 | 2012-04-11 | 重庆川仪分析仪器有限公司 | Portable infrared gas analyzer |
| CN104155261A (en) * | 2014-08-27 | 2014-11-19 | 无锡格林通安全装备有限公司 | Gas calibration device of infrared gas detector |
| CN105548017A (en) * | 2015-12-30 | 2016-05-04 | 北方华锦化学工业集团有限公司 | Non-contact type semiconductor laser gas analyzer |
| CN112666108A (en) * | 2020-11-27 | 2021-04-16 | 广西电网有限责任公司电力科学研究院 | Method for detecting mixed gas after pyrolysis of environment-friendly gas by infrared spectroscopy |
-
2011
- 2011-08-10 CN CN 201120289542 patent/CN202305402U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410987A (en) * | 2011-08-10 | 2012-04-11 | 重庆川仪分析仪器有限公司 | Portable infrared gas analyzer |
| CN102410987B (en) * | 2011-08-10 | 2013-06-05 | 重庆川仪分析仪器有限公司 | Portable infrared gas analyzer |
| CN104155261A (en) * | 2014-08-27 | 2014-11-19 | 无锡格林通安全装备有限公司 | Gas calibration device of infrared gas detector |
| CN105548017A (en) * | 2015-12-30 | 2016-05-04 | 北方华锦化学工业集团有限公司 | Non-contact type semiconductor laser gas analyzer |
| CN112666108A (en) * | 2020-11-27 | 2021-04-16 | 广西电网有限责任公司电力科学研究院 | Method for detecting mixed gas after pyrolysis of environment-friendly gas by infrared spectroscopy |
| CN112666108B (en) * | 2020-11-27 | 2023-07-25 | 广西电网有限责任公司电力科学研究院 | Method for detecting mixed gas after pyrolysis of environment-friendly gas by infrared spectrum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20150810 |
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| EXPY | Termination of patent right or utility model |