CN208921617U - It is molten in a kind of water based on TDLAS to deposit CO2Portable detection device - Google Patents
It is molten in a kind of water based on TDLAS to deposit CO2Portable detection device Download PDFInfo
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- CN208921617U CN208921617U CN201821093870.8U CN201821093870U CN208921617U CN 208921617 U CN208921617 U CN 208921617U CN 201821093870 U CN201821093870 U CN 201821093870U CN 208921617 U CN208921617 U CN 208921617U
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Abstract
CO is deposited the utility model discloses molten in a kind of water based on TDLAS2Portable detection device belongs to laser spectrum tech field.The device includes laser controller, semiconductor laser with tunable, signal generator, laser aligner, reflecting mirror, optical fiber, sample cavity, temperature sensor, pressure transducer, photodetector, capture card, PC104, vacuum pump, immersible pump, deaeration pipe, Portable suitcase etc..It is easy to operate, light is gone out by software control laser, the gas deviate from from degasser imports sample cavity, obtains sample temperature, and pressure and spectral information calculate to store automatically by matched software and molten in water deposit CO2Concentration.Structurally reasonable, integration degree is high, is convenient for carrying, especially: both can be with probe gas CO2Concentration information can detect again molten in water deposits CO2Concentration.
Description
Technical field
The utility model belongs to laser spectrum tech field, is related to molten in a kind of water depositing CO2The portable detection device of concentration.
Background technique
Tunable diode laser absorption spectroscopy technology (Tunable Diode Laser Absorption
Spectroscopy, abbreviation TDLAS), it is the characteristic using semiconductor laser with tunable tunable wave length, is swept by wavelength
The characteristic absorption spectrum for obtaining laser after sample cavity multiple reflections is retouched, then the absorption line shape of gas is fitted and carrys out inverting
The concentration of under test gas is to a kind of spectral technique to sample progress qualitative and quantitative analysis.After moisture separator,
It can effectively realize and deposit CO to molten in water2The real-time detection of concentration, especially surface seawater, in ocean carbon cycle, Atmospheric Survey etc.
Aspect will have very big application prospect.
Summary of the invention
The utility model has organically combined moisture separator on the basis of original TDLAS gas detection apparatus, proposes
One kind may be implemented to deposit CO to molten in atmosphere or water2It is final to calculate acquisition by software kit in real time for the direct detection of concentration
It is molten in the water of concentration information to deposit CO2Portable detection device.
The technology employed by the present utility model is
It is molten in a kind of water based on TDLAS to deposit CO2Portable detection device, the present apparatus are divided into detection of gas part and aqueous vapor
Separate section, signal generator 1, laser controller 2, laser 3, laser aligner 4, reflecting mirror 5, sample cavity 6, incidence is held level with both hands
Concave mirror 7, exit end plano-concave mirror 8, photodetector 9, data collecting card 10, PC104 11, temperature sensor 12, pressure transducer
13, vacuum pump 14, the detection of gas part of 19 groups of cost apparatus of Portable suitcase；Pond 15, immersible pump 16, deaeration pipe
17, the aqueous vapor separate section of 18 groups of cost apparatus of wastewater disposal basin.
The 1 output low frequency sawtooth signal of signal generator, by laser controller 2 to the output wavelength of laser 3
It is tuned, makes the absorption peak of wavelength tuning range covering under test gas.Laser 3 is fixed on laser controller 2, laser warp
After crossing the collimation of laser aligner 4 and the reflection of reflecting mirror 5, enter sample room 6 from the incidence hole of multiple reflections chamber.Sample room 6 it is upper
Fang Yici is venthole, venthole valve, temperature sensor 12, pressure transducer 13, air inlet and air inlet valve.It is described more
Secondary reflection chamber is that concave surface is opposite to form stable resonator by 8 coaxial placement of incidence end plano-concave mirror 7 and exit end plano-concave mirror.Two sides
Plano-concave mirror diameter is 25.4mm, thickness 5mm, radius of curvature 10cm, a length of 4cm of stable resonator.It is reflected from reflecting mirror 5
The multiple reflections for passing through multiple reflections chamber into the laser of sample room 6 afterwards carry out after repeatedly absorbing the gas in sample room 6,
Light hole through exit end plano-concave mirror 8 is irradiated on photodetector 9, and then will carry absorption information by photodetector 9
Laser signal become electric signal, light path of the laser in sample cavity 6 after multiple reflections is up to 10m or so.It is visited by photoelectricity
Survey the temperature signal that spectral signal, the temperature sensor 12 that device 9 obtains obtain and the pressure signal that pressure transducer 13 obtains
Data acquisition, analog-to-digital conversion are all carried out by data collecting card 10.The signal that data collecting card 10 acquires is transferred to by USB
PC104 11 carries out calculation processing.
The vacuum pump 14 is connected with the venthole of sample cavity 6, can in time extract exhaust gas out, and makes sample cavity 6
It is interior to keep certain air pressure, and the revolving speed of vacuum pump 14 is adjustable, and then controls the pressure in sample cavity 6.
The working principle of aqueous vapor separate section is: after the immersible pump 16 extracts the water in pond 15 out, water enters de-
By degassing after the blasthole of tracheae 17, the gas deviate from by deaeration pipe 17 venthole, then on the air inlet through suitcase
Gastight joint and the air inlet of sample cavity 6 enter so that detection of gas part carries out detection of gas in sample cavity 6, immersible pump makes
With 220V Alternating Current Power Supply, lift is 10 meters, and the water after moisture separator deaerates flows into wastewater disposal basin 18.
The detection of gas part is encapsulated in Portable suitcase 19, easy to carry.Portable suitcase 19 has
Radiator, power supply interface, USB interface, USB interface and two-way gastight joint.Two-way on Portable suitcase 19 airtight connects
The use of head: (1) when probe gas, connecting on the inside of gastight joint with the air inlet of sample cavity 6, so as to so that object gas is logical
The gastight joint for crossing Portable suitcase 19 enters sample cavity and is detected；(2) molten when depositing gas in water, portable hand is detected
Connect on the outside of the gastight joint of suitcase 19 with the gas outlet of deaeration pipe 17, so that the gas for deviating from aqueous vapor separate section enters sample
It is detected in product chamber 6.
The beneficial effects of the utility model are:
1. TDLAS technology and moisture separator are organically combined, it can either be to CO in atmosphere2Concentration measures, also
CO can be deposited to molten in water2It measures.
2. device used in carries out Integration Design, in Portable suitcase, greatly improves portability and entirety
The robustness of system.
Detailed description of the invention
Fig. 1 is the utility model overall construction design schematic diagram.
Drawing reference numeral: 1, signal generator；2, laser controller；3, laser；4, laser aligner；5, reflecting mirror； 6,
Sample cavity；7, incidence end plano-concave mirror；8, exit end plano-concave mirror；9, photodetector；10, data collecting card；11, PC104；12,
Temperature sensor；13, pressure transducer；14, vacuum pump；15, pond；16, immersible pump；17, deaeration pipe；18, wastewater disposal basin；
19, Portable suitcase；
Specific embodiment
More detailed description is done to specific embodiment of the present utility model below in conjunction with attached drawing.
It is molten in a kind of water based on TDLAS to deposit CO referring to attached drawing 12Portable detection device, including signal generator 1 swash
Optical controller 2, laser 3, laser aligner 4, reflecting mirror 5, sample cavity 6, incidence end plano-concave mirror 7, exit end plano-concave mirror 8, light
Electric explorer 9, data collecting card 10, PC104 11, temperature sensor 12, pressure transducer 13, vacuum pump 14, pond
15, immersible pump 16, deaeration pipe 17, wastewater disposal basin 18, Portable suitcase 19.The laser 3 is mounted on laser controller 2,
The plano-concave mirror 7 and exit end plano-concave mirror 8, which are fixed in sample cavity 6, forms multiple reflections chamber, and temperature sensor 12 and pressure pass
Sensor 13 is mounted on sample cavity 6, and the front-right of the exit end plano-concave mirror 8 is photodetector 9, the vacuum pump
14 are connected with the venthole of sample cavity 6, and 17 venthole of deaeration pipe connects with airtight on the air inlet of Portable suitcase 19
Head connects, then the air inlet of the gastight joint another side sample cavity 6 on 19 air inlet of Portable suitcase is connected, the temperature
Sensor 12, pressure transducer 13, photodetector 9 are connected with data collecting card 10.System can be divided into detection of gas part
With water gas separate section, the signal generator 1, laser controller 2, laser 3, laser aligner 4, reflecting mirror 5, sample
Chamber 6, incidence end plano-concave mirror 7, exit end plano-concave mirror 8, photodetector 9, data collecting card 10, PC104 11, temperature sensor
12, pressure transducer 13, vacuum pump 14, the detection of gas part that Portable suitcase 19 is the utility model；The water
Pond 15, immersible pump 16, deaeration pipe 17, the aqueous vapor separate section that wastewater disposal basin 18 is the utility model.
It is molten in a kind of water based on TDLAS to deposit CO2Portable detection device working principle: it is issued and is sawed by signal generator 1
Tooth wave signal is tuned by output wavelength of the laser controller 2 to laser 3, and wavelength tuning range is made to cover gas to be measured
The absorption peak of body is collimated by laser aligner 4, then is penetrated after being reflected by reflecting mirror 5 through the incidence hole on incidence end plano-concave mirror 7
Enter sample cavity 6, laser multiple reflections between the multiple reflections chamber that incidence end plano-concave mirror 7 and exit end plano-concave mirror 8 form improve
The sensitivity of detection of gas, the laser after multiple reflections repeatedly absorb is emitted through the light hole of exit end plano-concave mirror 8, by light
Electric explorer 9 receives, and the acquisition of spectral signal is carried out by data collecting card 10.Vacuum pump 14 is connected to sample cavity 6
On venthole, exhaust gas is extracted out and keeps pressure certain in sample cavity 6；Temperature sensor 12 and pressure transducer 13 detect
Be the temperature of gaseous sample and pressure information in sample cavity 6, together with spectral signal by capture card 10 carry out data acquisition.It adopts
The each signal collected is linked into PC104 11 by USB is calculated gas concentration；Detect water in it is molten deposit gas when, by diving
After the water that water pump 16 is extracted out is flowed into moisture separator, the gas in water body is deviate from, and enters sample by the air intake of sample cavity 6
Product chamber 6 obtains absorption peak so that laser is repeatedly absorbed by multiple reflections, and the water after deaerating is discharged moisture separator.
The detection sample concrete operations of this detector can be divided into following steps:
(1): the power switch on Portable suitcase 19 being opened and is powered to equipment, it is mating soft to open this detection device
Corresponding collection period, average time, the parameters such as data storage location are set as needed in part.
(2): immersible pump is launched into water and powered.
(3): when probe gas, the intake interface of the Portable suitcase 19 connects with the air inlet of sample cavity 6, thus
Object gas can be made to enter sample cavity 6 by the intake interface of Portable suitcase 19, and visited by the utility model gas
Part is surveyed to be detected；It is molten when depositing gas in detection water, in the intake interface and aqueous vapor separate section of the Portable suitcase
The gas outlet of deaeration pipe 17 connects, so that the gas for deviating from aqueous vapor separate section enters in sample cavity 6, and then practical by this
New gas probe portion is detected.
Claims (3)
1. molten in a kind of water based on TDLAS deposit CO2Portable detection device, it is characterized in that: the present apparatus is divided into detection of gas part
With water gas separate section, signal generator, laser controller, laser, laser aligner, reflecting mirror, sample cavity, incidence end
Plano-concave mirror, exit end plano-concave mirror, photodetector, data collecting card, PC104, temperature sensor, pressure transducer, vacuum are taken out
The detection of gas part of air pump, Portable suitcase group cost apparatus；Pond, immersible pump, deaeration pipe, wastewater disposal basin group cost apparatus
Aqueous vapor separate section, detection of gas part and the combination of water gas separate section are together for measuring molten in water deposit in the present apparatus
CO2Concentration, individually using detection of gas part for measuring Atmospheric CO2Concentration.
2. molten in a kind of water based on TDLAS according to claim 1 deposit CO2Portable detection device, it is characterized in that: should
Device detection of gas is partially integrated in one having a size of 17*40*34cm3Portable suitcase in, weight be 7 kilograms, the hand
Suitcase material is engineering plastics, and radiator, power supply interface, USB interface, USB interface and two-way gastight joint, upper side are housed
Equipped with immersible pump 5V for plug, specially circle DC female, diameter 5.5mm.
3. molten in a kind of water based on TDLAS according to claim 1 deposit CO2Portable detection device, it is characterized in that: in
Portable suitcase upper side is equipped with two-way gastight joint: when probe gas, the air inlet phase of gastight joint side and sample cavity
It connects, the other side is communicated with atmosphere；Molten when depositing gas in detection water, gastight joint side connects with the gas outlet of deaeration pipe, another
Side connects with the air inlet of sample cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821093870.8U CN208921617U (en) | 2018-07-11 | 2018-07-11 | It is molten in a kind of water based on TDLAS to deposit CO2Portable detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821093870.8U CN208921617U (en) | 2018-07-11 | 2018-07-11 | It is molten in a kind of water based on TDLAS to deposit CO2Portable detection device |
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| Publication Number | Publication Date |
|---|---|
| CN208921617U true CN208921617U (en) | 2019-05-31 |
Family
ID=66693928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821093870.8U Expired - Fee Related CN208921617U (en) | 2018-07-11 | 2018-07-11 | It is molten in a kind of water based on TDLAS to deposit CO2Portable detection device |
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| CN (1) | CN208921617U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514621A (en) * | 2019-08-22 | 2019-11-29 | 中国海洋大学 | Ocean original position pCO2Sensor |
| CN111795905A (en) * | 2020-07-29 | 2020-10-20 | 周国栋 | Electronic carbonated beverage concentration testing device and concentration testing and adjusting method |
| CN111964846A (en) * | 2020-09-28 | 2020-11-20 | 郑州斯倍思机电有限公司 | By using CO2System for detecting tightness of workpiece |
| CN113899520A (en) * | 2021-09-13 | 2022-01-07 | 中国航空工业集团公司哈尔滨空气动力研究所 | Carbon dioxide component control system and method for Mars wind tunnel |
-
2018
- 2018-07-11 CN CN201821093870.8U patent/CN208921617U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514621A (en) * | 2019-08-22 | 2019-11-29 | 中国海洋大学 | Ocean original position pCO2Sensor |
| CN111795905A (en) * | 2020-07-29 | 2020-10-20 | 周国栋 | Electronic carbonated beverage concentration testing device and concentration testing and adjusting method |
| CN111964846A (en) * | 2020-09-28 | 2020-11-20 | 郑州斯倍思机电有限公司 | By using CO2System for detecting tightness of workpiece |
| CN113899520A (en) * | 2021-09-13 | 2022-01-07 | 中国航空工业集团公司哈尔滨空气动力研究所 | Carbon dioxide component control system and method for Mars wind tunnel |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190531 Termination date: 20200711 |