CN205538639U - Gas analysis appearance air chamber device - Google Patents
Gas analysis appearance air chamber device Download PDFInfo
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- CN205538639U CN205538639U CN201620256163.0U CN201620256163U CN205538639U CN 205538639 U CN205538639 U CN 205538639U CN 201620256163 U CN201620256163 U CN 201620256163U CN 205538639 U CN205538639 U CN 205538639U
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- air chamber
- laser
- gas
- cell device
- reflecting mirror
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Abstract
The utility model provides a gas analysis appearance air chamber device belongs to the gaseous technical field of detection. It has been solved current air chamber device and can not play dust filter to the tracer gas who has high dust and detect the problem that the precision is not high. This gas analysis appearance air chamber device, including laser receiver, laser emitter and air chamber, laser receiver and laser emitter all set up in the air chamber, this gas analysis appearance air chamber device still including speculum that can the light beam with can be with dust filter's filter, the air vent has been seted up on the air chamber, the filter setting is on the air chamber and lie in the air vent, the speculum sets up in the air chamber, and the speculum can be with the laser -bounce of laser emitter transmission to the laser receiver. This gas analysis appearance air chamber device can set up the filter and improve the precision that detects through reflecting laser simultaneously.
Description
Technical field
This utility model belongs to gas detection technology field, relates to a kind of gas analyser gas
Chamber device.
Background technology
Along with industrial expansion, increasing industrial waste gas needs to process, people simultaneously
For environmental conservation attention the most all the more, during the detection of industrial waste gas, in order to protect
The accuracy of card analysis detecting data, being fallen by the dust-filtering in industrial waste gas is to weigh very much
Want.
TDLAS translator of Chinese is: tunable diode laser absorption spectroscopy.Using
When TDLAS measurement method measures the concentration of gas, it is will to adjust according to certain frequency f with electric current
The incident laser having made wavelength imports the survey equipped with one or more object gas to be analyzed
In amount air chamber, and the photoelectric sensing apparatus of gas sensing measurement apparatus is utilized to detect the most logical
Crossing this gas the luminous power of transmission laser returned, this gas to be measured can comprise multiple
Gas componant, the absorption that the most various specific gas componants are respectively provided with specific wavelength is special
Property.
Therefore, when the incident laser with characteristic frequency f is imported gas to be measured, enter
Penetrate laser strongly to be inhaled near characteristic frequency f of the object gas composition of this gas to be measured
Receive, manage to obtain incident laser by the intensity of object gas ingredient draws, and with reference to incident
The intensity of laser, can go out the concentration of object gas composition in gas to be measured with inversion reckoning.
At present, people also have developed various gas analyser gas cell device:
As Chinese patent application (application number: 201010154595.8) discloses a kind of anti-
The laser dust detection device of dust stratification interference, at least includes laser and in order to detect ash-laden gas
First detection darkroom of body, the entrance in the first detection darkroom is provided with the first light shielding device,
First detection darkroom is provided with first and enters light window and the first light-emitting window, and first enters optical window
Mouthful and the first light-emitting window on be provided with dustproof glass, in the exit direction of laser instrument one
Secondary the first semi-transparent semi-reflecting lens, the first semi-transparent semi-reflecting lens and the discharger of being provided with, first enters
It is provided with the first extender lens before light window, is provided with the first focusing after the first light-emitting window saturating
Mirror, the focal point after the first condenser lens is provided with more than first yuan of fiber distribution plate.
Although the laser dust detection device of above-mentioned anti-dust stratification interference can be strengthened gas
Accuracy of detection, but can not fundamentally play the effect of dust-filtering.
Summary of the invention
The purpose of this utility model is to there are the problems referred to above for existing technology, it is proposed that
A kind of gas analyser gas cell device, technical problem to be solved in the utility model be as
What realizes the industrial waste gas of high dust is carried out high-precision detection.
The purpose of this utility model can be realized by following technical proposal: a kind of gas divides
Analyzer gas cell device, including laser pickoff, generating laser and air chamber, described laser
Receptor and generating laser are arranged in air chamber, it is characterised in that this gas analysis
Instrument gas cell device also include reflecting light reflecting mirror and can be by the filtration of dust-filtering
Device, described air chamber offers passage, and described filter is arranged on air chamber and is positioned at
In passage, described reflecting mirror is arranged in air chamber, and reflecting mirror can be by generating laser
The laser-bounce launched is on laser pickoff.
Industrial waste gas containing dust is entered in air chamber by passage, and filter is positioned at
In passage, industrial waste gas is when by passage, and filter is by the powder in industrial waste gas
Dirt filters out, and after industrial waste gas enters into air chamber, is gone out sharp by laser transmitter projects
Light reflects through reflecting mirror, reflecting mirror by the laser-bounce of reflection on laser pickoff,
The setting of reflecting mirror adds the path of detection, so that the precision of laser detection improves,
Decrease error, by laser pickoff, generating laser, air chamber, reflecting mirror and mistake
Filter with the use of, can further realize carrying out height to the industrial waste gas of high dust
The detection of precision.
In above-mentioned gas analyser gas cell device, in this gas analyser gas cell device
Being provided with several reflecting mirrors, described reflecting mirror is arranged on the two ends of air chamber, and can be by laser
The laser-bounce that emitter is launched is on laser pickoff.
Reflecting mirror can be concave mirror or the plane mirror being obliquely installed, by several
The setting of reflecting mirror, the light that laser transmitter projects can be made to go out can be many by reflecting mirror
Received by laser pickoff after secondary reflection, so that the light that generating laser sends is many
Secondary through industrial waste gas, thus decrease the error of detection, improve the precision of detection.
In above-mentioned gas analyser gas cell device, in this gas analyser gas cell device
Being provided with a reflecting mirror, described generating laser and laser pickoff are positioned at one end of air chamber,
Described reflecting mirror is positioned at the other end of air chamber.
Only arranging a reflecting mirror, the light that laser transmitter projects can be made to go out can pass through
Received by laser pickoff after reflecting mirror reflection, so that the light that generating laser sends
Twice of line, through industrial waste gas, also can be able to be protected in the case of gas cell device is simpler
The precision of card detection.
In above-mentioned gas analyser gas cell device, described filter is arranged on air chamber
Both sides, described filter includes coarse strainer and fine straining net, described generating laser and laser
Receptor is respectively positioned between two fine straining nets, described coarse strainer relative to fine straining net all away from swash
Optical transmitting set and laser pickoff.
Coarse strainer and fine straining net it is respectively provided with so that there is the work of dust in the both sides of air chamber
After the thick step of coarse strainer of first passing through industry waste gas filters, then by fine straining net to filtering after
Industrial waste gas the most once filter, so that by contained by the gas of laser detection
Dust Capacity be substantially reduced, thus further improve the precision of detection.
In above-mentioned gas analyser gas cell device, this gas analyser gas cell device is also
Including sealing member, described sealing member is arranged in air chamber, and described sealing member is all and coarse strainer
It is tightly connected with one end of fine straining net.
The setting of sealing member so that coarse strainer and fine straining net are in sealing state so that
Through the industrial waste gas of coarse strainer, can be during by fine straining net filtration, Bu Huicong
Escape between the end of coarse strainer and fine straining net, so that coarse strainer and fine straining net are with anti-
The cooperation penetrating mirror can preferably improve the precision of detection.
In above-mentioned gas analyser gas cell device, described sealing member is connected with coarse strainer
One end extend butting section, described butting section is connected with the inner wall sealing of air chamber, described
Reflecting mirror can recline mutually with butting section.
Sealing member is one-body molded with butting section, and sealing member is L-shaped with butting section, against
Portion and the setting of sealing, can further simplify coarse strainer, fine straining net and reflecting mirror it
Between installation and connection, also ensure that the precision of detection simultaneously.
Compared with prior art, this gas analyser gas cell device has the advantage that
1, by laser pickoff, generating laser, air chamber and reflecting mirror with the use of,
The laser gone out from laser transmitter projects can be reflected by reflecting mirror, thus improve gas
The precision that health check-up is surveyed.
2, by the mating reaction between fine straining net and coarse strainer, can will detected gas carry
Some dust-filterings fall, thus improve the precision of gas detecting.
3, sealing member and the setting of butting section so that the installation of gas analyser gas cell device
Easier.
Accompanying drawing explanation
Fig. 1 is the sectional view of this gas analyser gas cell device.
In figure, 1, generating laser；2, laser pickoff；3, air chamber；31, ventilation
Hole；4, reflecting mirror；5, filter；51, coarse strainer；52, fine straining net；6, seal
Part；7, butting section.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, to this utility model
Technical scheme be further described, but this utility model is not limited to these embodiments.
Embodiment one
As it is shown in figure 1, this gas analyser gas cell device, including laser pickoff 2,
Generating laser 1,3, reflecting mirror 4 of air chamber and filter 5.
Specifically, as it is shown in figure 1, laser pickoff 2 and generating laser 1 are all provided with
Putting in air chamber 3, air chamber 3 offers passage 31, filter 5 is arranged on air chamber
3 upper is also positioned at passage 31, and what generating laser 1 can be launched by reflecting mirror 4 swashs
Luminous reflectance is on laser pickoff 2, and generating laser 1 and laser pickoff 2 are positioned at gas
One end of room 3, reflecting mirror 4 is positioned at the other end of air chamber 3, because offering on air chamber 3
There is passage 31, and filter 5 is arranged in passage 31, so containing dust
Dust-filtering can be fallen by industrial waste gas by filter 5, and generating laser 1 is launched sharp
Light, the laser-bounce that will be sent by reflecting mirror 4, until arriving the Laser emission of reflection
On laser pickoff 2, reflecting mirror 4 only one of which now, so that Laser emission
The light that device 1 sends twice, can be simpler at air chamber 3 device through industrial waste gas
In the case of, also can guarantee that the precision of detection, and TDLAS be by with electric current according to certain frequency
Rate f has been modulated the incident laser of wavelength and has been imported equipped with one or more target gas to be analyzed
In the measurement air chamber 3 of body, and utilize the photoelectric sensing apparatus of gas sensing measurement apparatus
Detection is by this gas the luminous power of transmission laser that returns, by TDLAS to gas
Body detects, and can help more preferable detected gas, by laser pickoff 2, laser
Emitter 1, air chamber 3, reflecting mirror 4 and filter 5 with the use of, can further
Realize carrying out high-precision detection to the industrial waste gas of high dust.
Further, filter 5 is arranged on the both sides of air chamber 3, and filter 5 includes
Coarse strainer 51 and fine straining net 52, generating laser 1 and laser pickoff 2 are respectively positioned on two
Between fine straining net 52, coarse strainer 51 relative to fine straining net 52 all away from generating laser 1
With laser pickoff 2, it is respectively provided with coarse strainer 51 and fine straining net 52 in the both sides of air chamber 3,
After the thick step making the industrial waste gas with dust can first pass through coarse strainer 51 filters, then
By fine straining net 52, the industrial waste gas after filtering the most once is filtered, so that logical
Cross the Dust Capacity contained by the gas of laser detection to be substantially reduced, thus further improve
The precision of detection.
Further, this gas analyser gas cell device also includes sealing member 6, close
Sealing 6 is arranged in air chamber 3, sealing member 6 all with coarse strainer 51 and fine straining net 52
One end is tightly connected, and butting section 7 is extended in one end that sealing member 6 is connected with coarse strainer 51,
Butting section 7 is connected with the inner wall sealing of air chamber 3, and reflecting mirror 4 can be affixed with butting section 7
Lean on, the setting of sealing member 6 so that coarse strainer 51 and fine straining net 52 are in sealing state,
Make at the industrial waste gas through coarse strainer 51, can be in the mistake filtered by fine straining net 52
Cheng Zhong, will not escape between the end of coarse strainer 51 and fine straining net 52, and sealing member
6 is one-body molded with butting section 7, and sealing member 6 is L-shaped with butting section 7, sealing member 6
Coarse strainer 51 and fine straining net 52 and anti-can be further simplified with arranging of butting section 7
Penetrating the installation between mirror 4 and connection, the setting of butting section 7 and sealing member 6 simultaneously is also protected
Demonstrate,prove the precision of detection.
Embodiment two
The gas analyser gas cell device of the present embodiment is essentially identical with embodiment one, and it is not
It is with part: this gas analyser gas cell device is provided with several reflecting mirrors 4, instead
Penetrate mirror 4 and be arranged on the two ends of air chamber 3, and the laser that can be launched by generating laser 1 is anti-
Being mapped on laser pickoff 2, reflecting mirror 4 can be concave mirror or be obliquely installed
Plane mirror, by the setting of several reflecting mirrors 4, can make generating laser 1 launch
The light gone out can be received by laser pickoff 2 by after reflecting mirror 4 multiple reflections, thus
Make the light that generating laser 1 sends repeatedly through industrial waste gas, thus decrease inspection
The error surveyed, improves the precision of detection.
Specific embodiment described herein is only for example to this utility model spirit
Explanation.This utility model person of ordinary skill in the field can be to described concrete
Embodiment is made various amendment or supplements or use similar mode to substitute, but not
Spirit of the present utility model can be deviateed or surmount model defined in appended claims
Enclose.
Claims (6)
1. a gas analyser gas cell device, sends out including laser pickoff (2), laser
Emitter (1) and air chamber (3), described laser pickoff (2) and generating laser (1)
It is arranged in air chamber (3), it is characterised in that this gas analyser gas cell device also wraps
Include can reflect light reflecting mirror (4) and can be described by the filter (5) of dust-filtering
Offering passage (31) on air chamber (3), described filter (5) is arranged on air chamber (3)
Going up and be positioned at passage (31), described reflecting mirror (4) is arranged in air chamber (3),
And the laser-bounce that generating laser (1) can be launched by reflecting mirror (4) is to laser pick-off
On device (2).
Gas analyser gas cell device the most according to claim 1, it is characterised in that
This gas analyser gas cell device is provided with several reflecting mirrors (4), described reflecting mirror (4)
It is arranged on the two ends of air chamber (3), and the laser that can generating laser (1) be launched is anti-
It is mapped on laser pickoff (2).
Gas analyser gas cell device the most according to claim 1, it is characterised in that
This gas analyser gas cell device is provided with a reflecting mirror (4), described generating laser
And laser pickoff (2) is positioned at one end of air chamber (3), described reflecting mirror (4) (1)
It is positioned at the other end of air chamber (3).
4. according to the gas analyser gas cell device described in claim 1 or 2 or 3, its
Being characterised by, described filter (5) is arranged on the both sides of air chamber (3), described filtration
Device (5) includes coarse strainer (51) and fine straining net (52), described generating laser (1)
With laser pickoff (2) is respectively positioned between two fine straining nets (52), described coarse strainer (51)
Relative to fine straining net (52) all away from generating laser (1) and laser pickoff (2).
Gas analyser gas cell device the most according to claim 4, it is characterised in that
This gas analyser gas cell device also includes sealing member (6), and described sealing member (6) is arranged
In air chamber (3), described sealing member (6) all with coarse strainer (51) and fine straining net (52)
One end be tightly connected.
Gas analyser gas cell device the most according to claim 5, it is characterised in that
Butting section (7) is extended in one end that described sealing member (6) is connected with coarse strainer (51),
Described butting section (7) is connected with the inner wall sealing of air chamber (3), described reflecting mirror (4)
Can recline mutually with butting section (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256163.0U CN205538639U (en) | 2016-03-30 | 2016-03-30 | Gas analysis appearance air chamber device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256163.0U CN205538639U (en) | 2016-03-30 | 2016-03-30 | Gas analysis appearance air chamber device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538639U true CN205538639U (en) | 2016-08-31 |
Family
ID=56786562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620256163.0U Expired - Fee Related CN205538639U (en) | 2016-03-30 | 2016-03-30 | Gas analysis appearance air chamber device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205538639U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872325A (en) * | 2017-03-24 | 2017-06-20 | 北京绿刻度科技有限公司 | A kind of dust sensor |
| CN107807090A (en) * | 2017-10-31 | 2018-03-16 | 中煤科工集团重庆研究院有限公司 | U-typed spectral absorption integration air chamber |
| CN108827900A (en) * | 2018-07-18 | 2018-11-16 | 北京益康农科技发展有限公司 | A kind of CO2Analytical equipment and rising measure apparatus of photosynthesis comprising it |
-
2016
- 2016-03-30 CN CN201620256163.0U patent/CN205538639U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872325A (en) * | 2017-03-24 | 2017-06-20 | 北京绿刻度科技有限公司 | A kind of dust sensor |
| CN107807090A (en) * | 2017-10-31 | 2018-03-16 | 中煤科工集团重庆研究院有限公司 | U-typed spectral absorption integration air chamber |
| CN108827900A (en) * | 2018-07-18 | 2018-11-16 | 北京益康农科技发展有限公司 | A kind of CO2Analytical equipment and rising measure apparatus of photosynthesis comprising it |
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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: 20160831 Termination date: 20210330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |