CN106290209A - A kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology - Google Patents
A kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology Download PDFInfo
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- CN106290209A CN106290209A CN201610632789.1A CN201610632789A CN106290209A CN 106290209 A CN106290209 A CN 106290209A CN 201610632789 A CN201610632789 A CN 201610632789A CN 106290209 A CN106290209 A CN 106290209A
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000003546 flue gas Substances 0.000 title claims abstract description 37
- 238000005516 engineering process Methods 0.000 title claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 67
- 238000001514 detection method Methods 0.000 claims abstract description 51
- 239000000356 contaminant Substances 0.000 claims abstract description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000835 fiber Substances 0.000 claims abstract description 18
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 18
- 238000010183 spectrum analysis Methods 0.000 claims abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000012528 membrane Substances 0.000 claims description 22
- 229910052724 xenon Inorganic materials 0.000 claims description 13
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- 239000004411 aluminium Substances 0.000 claims description 12
- 239000003344 environmental pollutant Substances 0.000 claims description 9
- 231100000719 pollutant Toxicity 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000011109 contamination Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000012491 analyte Substances 0.000 claims 1
- 210000000170 cell membrane Anatomy 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 5
- 238000001228 spectrum Methods 0.000 abstract description 4
- 238000000862 absorption spectrum Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000004847 absorption spectroscopy Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001658 differential optical absorption spectrophotometry Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- 238000012956 testing procedure Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/0303—Optical path conditioning in cuvettes, e.g. windows; adapted optical elements or systems; path modifying or adjustment
Abstract
The invention discloses a kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology, including analyser cabinet, detection for gaseous contaminants module, temperature control spectral analysis module, two-position three-way valve；Main control module controls two-position three-way valve, sample gas to be measured is made to enter detection for gaseous contaminants module, the light that the light source of detection for gaseous contaminants module sends is through compound lens, multiple reflecting pool reflects, absorbed by the sample gas to be measured flowing through sensing chamber, it coupled to silica fibre after carrying the light line focus lens convergence of sample gas to be measured absorption information, send into temperature control spectral analysis module through silica fibre transmission and carry out light-splitting processing, i.e. can get the absorption spectrum of gas, by spectrum is carried out difference analysis, and combine chemometrics algorithm, acquisition sample gas concentration to be measured can be analyzed, sample gas to be measured is discharged eventually through oxygen sensor evacuation port from analyser cabinet.Present configuration is compact, simple to operate, reliable and stable, can realize the on-line analysis of super low concentration flue gas.
Description
Technical field
The present invention relates to a kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology, be applied to fixing dirt
Flue gas minimum discharge monitoring field, dye source.
Background technology
Day by day serious along with air pollution, country is also being gradually increased for the control dynamics of discharge of pollutant sources.2014
Year JIUYUE, National Development and Reform Committee, Environmental Protection Department, national energy combine issue " coal electricity energy-saving and emission-reduction upgrading action plan
(2014-2020) ", propose to the year two thousand twenty, the unit of eastern region active service basically reaches gas turbine group by transformation and discharges
The requirement of limit limit value, wherein SO2And NOxConcentration of emission be respectively no higher than 35mg/m3、50mg/m3, minimum discharge is to monitor
Device proposes high requirement.
Current domestic existing conventional flue gas analyzer is mainly followed the example of based on cold dry tap, its main technical principle used
Including non-dispersion infrared (NDIR), ultraviolet difference (DOAS) and non-dispersive ultraviolet (NDUV) etc..Each technology all has itself
Advantage and feature, wherein ultraviolet difference absorption spectroscopy techniques, capacity of resisting disturbance is strong, can effectively avoid steam or other gas
Cross interference.Existing conventional flue gas analyzer range is substantially at more than 200ppm, and even up to 2000ppm, its monitoring refers to
Mark far from the demand met for minimum discharge monitoring.The monitoring of minimum discharge is met in order to improve the detection sensitivity of instrument
Demand, needs instrument is carried out technological improvement.
Summary of the invention
In order to solve the problems referred to above, the present invention provides a kind of minimum discharge flue gas based on ultraviolet multiple reflections pool technology to divide
Analyzer.
The concrete scheme that the present invention uses is as follows:
A kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology, it is characterised in that: include analyser cabinet,
The rear board of described analyser cabinet is provided with sample gas inlet, zero gas entrance, and the front panel of analyser cabinet is provided with rotor stream
Gauge, touch display screen, analyser cabinet is provided with evacuation port, is provided with membrane filter, gaseous contaminant in analyser cabinet
Detection module, temperature control spectral analysis module, two-position three-way valve, oxygen sensor, power module, membrane pump, main control module；Gaseous state
Pollutant monitoring module is connected by silica fibre with temperature control spectral analysis module；
Described main control module divides with power module, membrane pump, two-position three-way valve, detection for gaseous contaminants module, temperature control spectrum
Analysis module, oxygen sensor, the electrical connection of touch display screen；
Zero gas enters port transmission to membrane filter by zero gas, filters through membrane filter, then is extracted extremely by zero gas by membrane pump
One interface of two-position three-way valve；Sample gas is connected directly to another interface of two-position three-way valve by sample gas inlet, two three
The outlet of logical valve is connected to spinner flowmeter by pipeline, and spinner flowmeter outlet connects the air inlet of gas pollutant detection module
Mouthful, the gas outlet of gas pollutant detection module is connected to oxygen amount sensor, and oxygen amount sensor is connected to evacuation port.
Described a kind of based on ultraviolet multiple reflections pool technology minimum discharge flue gas analyzer, it is characterised in that: described
Detection for gaseous contaminants module includes xenon flash lamp ultraviolet source, sensing chamber, xenon flash lamp ultraviolet source and main control module electricity
Connect, be provided with multiple reflecting pool in sensing chamber, the two ends inwall of sensing chamber fixes multiple reflecting pool primary mirror, multiple reflections respectively
Pond secondary mirror, one end of sensing chamber is provided with light path entrance, light way outlet, and light path porch is provided with window, and light path exit is provided with poly-
Focus lens, silica fibre, the front light path of xenon flash lamp ultraviolet source is disposed with collimating lens, reflecting mirror, pulsed xenon
After the light beam that lamp ultraviolet source sends is collimated, it is reflected mirror reflection and is entered multiple reflections through window by one end of sensing chamber again
Pond, after reflection light carries out multiple reflections in multiple reflecting pool, by the light way outlet outgoing of sensing chamber one end, line focus lens coupling
It is bonded to silica fibre.
Described a kind of based on ultraviolet multiple reflections pool technology minimum discharge flue gas analyzer, it is characterised in that: described
Temperature control spectral analysis module includes housing and is positioned at the spectrogrph of housing, PTC heating plate, fin, PT100 temperature biography
Sensor；Spectrogrph, PTC heating plate, PT100 temperature sensor electrically connect with main control module, and detection for gaseous contaminants module is led to
Cross silica fibre to be connected with spectrogrph.
Described a kind of based on ultraviolet multiple reflections pool technology minimum discharge flue gas analyzer, it is characterised in that: described
Sensing chamber's surface spraying in detection for gaseous contaminants module has black teflon coatings, strengthens the anticorrosive property of sensing chamber, with
Time prevent the absorption to sample gas of sensing chamber's inwall.
Described a kind of based on ultraviolet multiple reflections pool technology minimum discharge flue gas analyzer, it is characterised in that: described
In detection for gaseous contaminants module, multiple reflecting pool secondary mirror uses four regulative modes drawing three tops, for regulate secondary mirror pitching and
Deflection angle and the distance away from multiple reflecting pool primary mirror.
Described a kind of based on ultraviolet multiple reflections pool technology minimum discharge flue gas analyzer, it is characterised in that: described
In detection for gaseous contaminants module, reflecting mirror, multiple reflecting pool primary mirror, multiple reflecting pool secondary mirror all plate LJV mediums film, it is desirable to
The reflectance of 210-250nm wave band is more than 90%.
Described a kind of based on ultraviolet multiple reflections pool technology minimum discharge flue gas analyzer, it is characterised in that: pass through
Regulation to multiple reflecting pool secondary mirror, thus it is possible to vary multiple reflecting pool order of reflection, and then change the light path of detection light path；Described
The a length of 25cm of the base of multiple reflecting pool in sensing chamber in detection for gaseous contaminants module, the range of accommodation of order of reflection is 4～22
Secondary, the light path of detection light path is 1～5.5m.
Described a kind of based on ultraviolet multiple reflections pool technology minimum discharge flue gas analyzer, it is characterised in that: described
Temperature control spectral analysis module middle shell is aluminium section bar box, and aluminium section bar box inwall posts heat-preservation cotton, by PTC heating plate and fin
Heating in conjunction with to air in aluminium section bar box, PT100 temperature sensor is used for detecting ambient temperature, master control module controls aluminium section bar box
Interior environment is 38 DEG C ± 0.1 DEG C fluctuation.
Described membrane filter filtering holes is 0.2um, and zero gas entered from zero gas entrance to filter through membrane filter
Enter back into detection for gaseous contaminants module.
The present invention rationale here is that:
Based on ultraviolet difference absorption spectroscopy techniques detection flue gas in SO2, NOx, measure wave band between 210-250nm, light
Spectral resolution reaches 0.4nm.Ultraviolet difference absorption spectroscopy techniques utilizes target contaminant to be measured in the characteristic absorption of ultraviolet region
The i.e. fingerprint of structure absorbs, and is extracted the concentration information of pollutant by effective digital filtering.Its work process is light source (pulsed xenon
Lamp) light that sends enters detection for gaseous contaminants room through collimating lens, reflecting mirror, and reflect through multiple reflecting pool, flowed through gas
The sample gas to be measured of body room is absorbed, and the light carrying sample gas to be measured absorption information is coupled into silica fibre, through stone after lens converge
English fiber-optic transfer is sent into temperature control spectral analysis module and is carried out light-splitting processing, i.e. can get the absorption spectrum of gas, by spectrum
Carry out difference analysis, and combine chemometrics algorithm, acquisition dusty gas concentration can be analyzed.Sample gas to be measured is eventually through oxygen
Sensor evacuation port from analyser cabinet is discharged.
The invention have the advantage that
The present invention utilizes multiple reflections pool technology, the effective gas extinction journey that increases, thus effectively improves the detection spirit of instrument
Sensitivity；Simultaneously by spectrogrph is carried out temperature control, to ensure the stability and reliability that spectrum measures for a long time, temperature controls
Precision reaches ± 0.1 DEG C；The present invention can be used as minimum discharge monitoring after country's corresponding technology for detection specification inspection
Flue gas analysis instrument；Present configuration is compact, simple to operate, reliable and stable, can realize the on-line analysis of super low concentration flue gas.
Accompanying drawing explanation
Fig. 1 is the flue gas analyzer topology layout figure of the present invention.
Fig. 2 be the present invention flue gas analyzer in multiple reflecting pool structure chart.
Fig. 3 be the present invention flue gas analyzer in gas circuit schematic diagram.
Detailed description of the invention
As Figure 1-3, a kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology, including analyser
Cabinet 1, the rear board of analyser cabinet 1 is provided with sample gas inlet 11, zero gas entrance 12, the front panel of analyser cabinet 1 sets
Having spinner flowmeter 7, touch display screen 6, analyser cabinet 1 is provided with evacuation port 14, is provided with membrane filtration in analyser cabinet 1
Device 13, detection for gaseous contaminants module 10, temperature control spectral analysis module 5, two-position three-way valve 4, oxygen sensor 9, power module 2,
Membrane pump 3, main control module 8；Detection for gaseous contaminants module 10 is with temperature control spectral analysis module 5 by silica fibre 17 even
Connect；
Detection for gaseous contaminants module includes xenon flash lamp ultraviolet source 21, sensing chamber 23, and xenon flash lamp ultraviolet source 21 is with main
Control module 8 electrically connects, and is provided with multiple reflecting pool in sensing chamber 23, the two ends inwall of multiple reflecting pool is respectively equipped with the most anti-
Penetrating pond primary mirror 16, multiple reflecting pool secondary mirror 22, one end of sensing chamber 23 is provided with light path entrance, light way outlet, and light path porch sets
There are window 18, light path exit to be provided with condenser lens 15, silica fibre 17, the front light path of xenon flash lamp ultraviolet source 21 depends on
Secondary it is provided with collimating lens 20, reflecting mirror 19, after the light beam that xenon flash lamp ultraviolet source 21 sends is collimated, is reflected mirror 19 anti-
Penetrating and entered multiple reflecting pool through window 18 by one end of sensing chamber 23 again, reflection light carries out multiple reflections in multiple reflecting pool
After, by the light way outlet outgoing of sensing chamber 23 one end, and it coupled to silica fibre 17；
Temperature control spectral analysis module 5 includes housing and is positioned at the spectrogrph of housing, PTC heating plate, fin, PT100
Temperature sensor；Spectrogrph, PTC heating plate, PT100 temperature sensor electrically connect with main control module 8, detection for gaseous contaminants
Module 5 is connected with spectrogrph by silica fibre 17；
Zero gas is transmitted to membrane filter 13 by zero gas entrance 12, filters through membrane filter 13, then by membrane pump 3 by zero gas
Extract an interface to two-position three-way valve 4；Sample gas is connected directly to another of two-position three-way valve 4 by sample gas inlet 11 and connects
Mouthful, the outlet of two-position three-way valve 4 is connected to spinner flowmeter 7 by pipeline, and spinner flowmeter 7 outlet connects gaseous contamination quality testing
Surveying the air inlet of module 10, the gas outlet of gas pollutant detection module 10 is connected to oxygen amount sensor 9, and oxygen amount sensor 9 is even
It is connected to evacuation port；
Main control module 8 electrically connects with power module 2, membrane pump 3, two-position three-way valve 4, oxygen sensor 9, touch display screen 6.
Sensing chamber 23 surface spraying in detection for gaseous contaminants module 10 has black teflon coatings, strengthens sensing chamber
Anticorrosive property, prevents the absorption to sample gas of sensing chamber's inwall simultaneously.
In detection for gaseous contaminants module 10, multiple reflecting pool secondary mirror 22 uses four regulative modes drawing three tops, is used for regulating
The pitching of secondary mirror and deflection angle and the distance away from multiple reflecting pool primary mirror.
In detection for gaseous contaminants module 10, reflecting mirror 19, multiple reflecting pool primary mirror 16, multiple reflecting pool secondary mirror 22 all plate
LJV mediums film, it is desirable to the reflectance at 210-250nm wave band is more than 90%.
By the regulation to multiple reflecting pool secondary mirror 22, thus it is possible to vary multiple reflecting pool 22 numbers of reflection, and then change inspection
The light path on light-metering road；The a length of 25cm of base of multiple reflecting pool in sensing chamber 23 in described detection for gaseous contaminants module 10, reflection
The range of accommodation of number of times is 4～22 times, and the light path of detection light path is 1～5.5m.
Temperature control spectral analysis module 5 middle shell is aluminium section bar box, and aluminium section bar box inwall posts heat-preservation cotton, is heated by PTC
Sheet and fin combine and heat air in aluminium section bar box, and PT100 temperature sensor is used for detecting ambient temperature, main control module control
In aluminium section bar box processed, environment is 38 DEG C ± 0.1 DEG C fluctuation.
Membrane filter 13 filtering holes is 0.2um, and zero gas entered from zero gas entrance 12 will be through membrane filter 13 mistake
Filter enters back into detection for gaseous contaminants module 10.
The gaseous contamination substrate concentration of a kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology of the present invention
Testing procedure is as follows:
The reflecting mirror of multiple reflecting pool in step 1, regulation detection for gaseous contaminants module 10, multiple reflecting pool primary mirror 16, repeatedly
The secured adjusted structure (adjustment structure is drawn on i.e. three tops four) of reflection tank secondary mirror 22, reaches the order of reflection of requirement, and pulsed light
Output beam hot spot light intensity of outgoing after multiple reflecting pool reflects in source is transferred to spectrogrph through silica fibre 17 and meets light intensity need
Ask；
Step 2, being passed through zero gas in minimum discharge flue gas analyzer, main control module 8 controls two-position three-way valve 4 makes zero gas enter
Detection for gaseous contaminants module 10), until zero gas is full of detection for gaseous contaminants room detection module 10, carry out zero point correction；
Step 3, in minimum discharge flue gas analyzer, it is passed through the gas of 80%-100% range by sample gas inlet 11, master control molding
Block 8 controls two-position three-way valve 4 makes gas enter detection for gaseous contaminants module 10, until gas is full of detection for gaseous contaminants mould
Block 10 sensing chamber 23, carries out span calibration；
Step 4, being passed through sample gas to be measured in minimum discharge flue gas analyzer by sample gas inlet 11, main control module 8 controls two
Position three-way valve 4 makes sample gas enter detection for gaseous contaminants module 10, until sample gas is full of the inspection of detection for gaseous contaminants module 10
Survey room 23；Reflect through multiple reflecting pool, absorbed by the sample gas to be measured flowing through sensing chamber 23, carry sample gas to be measured and absorb information
Light line focus lens 15 are coupled into silica fibre 17 after converging, and send into temperature control spectral analysis module 5 through silica fibre 17 transmission and enter
Row light-splitting processing, obtains the absorption spectrum of gas.By spectrum is carried out difference analysis, acquisition dusty gas can be analyzed dense
Degree.
Claims (9)
1. a minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology, it is characterised in that: include analyser machine
Case, the rear board of described analyser cabinet is provided with sample gas inlet, zero gas entrance, and the front panel of analyser cabinet is provided with rotor
Effusion meter, touch display screen, analyser cabinet is provided with evacuation port, is provided with membrane filter, gaseous contamination in analyser cabinet
Analyte detection module, temperature control spectral analysis module, two-position three-way valve, oxygen sensor, power module, membrane pump, main control module；Gas
State pollutant monitoring module is connected by silica fibre with temperature control spectral analysis module；
Described main control module divides with power module, membrane pump, two-position three-way valve, detection for gaseous contaminants module, temperature control spectrum
Analysis module, oxygen sensor, the electrical connection of touch display screen；
Zero gas enters port transmission to membrane filter by zero gas, filters through membrane filter, then is extracted extremely by zero gas by membrane pump
One interface of two-position three-way valve；Sample gas is connected directly to another interface of two-position three-way valve by sample gas inlet, two three
The outlet of logical valve is connected to spinner flowmeter by pipeline, and spinner flowmeter outlet connects the air inlet of gas pollutant detection module
Mouthful, the gas outlet of gas pollutant detection module is connected to oxygen amount sensor, and oxygen amount sensor is connected to evacuation port.
A kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology the most according to claim 1, it is special
Levy and be: described detection for gaseous contaminants module includes xenon flash lamp ultraviolet source, sensing chamber, xenon flash lamp ultraviolet source and master
Control module electrically connects, and is provided with multiple reflecting pool, the two ends inwall of multiple reflecting pool is respectively equipped with multiple reflections in sensing chamber
Pond primary mirror, multiple reflecting pool secondary mirror, one end of sensing chamber is provided with light path entrance, light way outlet, and light path porch is provided with window, light
Be provided with condenser lens, silica fibre at way outlet, the front light path of xenon flash lamp ultraviolet source is disposed with collimating lens,
Reflecting mirror, after the light beam that xenon flash lamp ultraviolet source sends is collimated, be reflected mirror reflection again through window by one end of sensing chamber
Enter multiple reflecting pool, after reflection light carries out multiple reflections in multiple reflecting pool, by the light way outlet outgoing of sensing chamber one end,
And it coupled to silica fibre.
A kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology the most according to claim 2, it is special
Levy and be: described temperature control spectral analysis module include housing and be positioned at the spectrogrph of housing, PTC heating plate, fin,
PT100 temperature sensor；Spectrogrph, PTC heating plate, PT100 temperature sensor electrically connect with main control module, gaseous contaminant
Detection module is connected with spectrogrph by silica fibre.
A kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology the most according to claim 2, it is special
Levy and be: the sensing chamber's surface spraying in described detection for gaseous contaminants module has black teflon coatings.
A kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology the most according to claim 2, it is special
Levy and be: in described detection for gaseous contaminants module, multiple reflecting pool secondary mirror uses four regulative modes drawing three tops, is used for regulating
The pitching of secondary mirror and deflection angle and the distance away from multiple reflecting pool primary mirror.
A kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology the most according to claim 2, it is special
Levy and be: in described detection for gaseous contaminants module, reflecting mirror, multiple reflecting pool primary mirror, multiple reflecting pool secondary mirror all plate ultraviolet and be situated between
Plasma membrane, it is desirable to the reflectance at 210-250nm wave band is more than 90%.
A kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology the most according to claim 2, it is special
Levy and be: a length of 25cm of base of multiple reflecting pool, the regulation of order of reflection in sensing chamber in described detection for gaseous contaminants module
Scope is 4～22 times, and the light path of detection light path is 1～5.5m.
A kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology the most according to claim 3, it is special
Levy and be: described temperature control spectral analysis module middle shell is aluminium section bar box, and aluminium section bar box inwall posts heat-preservation cotton, is added by PTC
Backing and fin combine and heat air in aluminium section bar box, and PT100 temperature sensor is used for detecting ambient temperature, main control module
In controlling aluminium section bar box, environment is 38 DEG C ± 0.1 DEG C fluctuation.
A kind of minimum discharge flue gas analyzer based on ultraviolet multiple reflections pool technology the most according to claim 1, it is special
Levy and be: described membrane filter filtering holes is 0.2um.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219180A (en) * | 2017-06-15 | 2017-09-29 | 中国科学院合肥物质科学研究院 | A kind of portable detection of gas with multiple constituents device |
| CN107328727A (en) * | 2017-07-27 | 2017-11-07 | 天津国阳科技发展有限公司 | Flue gas analysis device and method based on ultraviolet difference technology |
| CN108051388A (en) * | 2018-01-16 | 2018-05-18 | 武汉敢为科技有限公司 | A kind of H2S gas ultraviolet spectra detection devices and its method |
| CN108152236A (en) * | 2017-12-19 | 2018-06-12 | 宇星科技发展(深圳)有限公司 | A kind of gas cell of ultraviolet difference analyzer |
| CN108169143A (en) * | 2018-01-15 | 2018-06-15 | 杭州春来科技有限公司 | Minimum discharge measuring system and equipment |
| CN108318437A (en) * | 2018-01-19 | 2018-07-24 | 中国科学院合肥物质科学研究院 | A kind of portable flue gas in-situ measurement system based on the adjustable how anti-pool technology of ultraviolet opening |
| CN108398396A (en) * | 2018-02-28 | 2018-08-14 | 南京国电环保科技有限公司 | A kind of double light path high temperature lighting apparatus components of ultraviolet reflectance formula |
| CN108801964A (en) * | 2018-09-20 | 2018-11-13 | 刘建松 | It is a kind of directly to measure formula gaseous pollutant emission monitoring device |
| CN109883973A (en) * | 2018-06-01 | 2019-06-14 | 南京安荣信电子科技有限公司 | A kind of ultraviolet flue gas analyzer of total space coupling optical path |
| CN112611729A (en) * | 2020-12-31 | 2021-04-06 | 杭州春来科技有限公司 | Chlorine gas detection system and detection method |
| CN113758920A (en) * | 2021-07-20 | 2021-12-07 | 北京新叶科技有限公司 | Ammonia escape monitoring device |
| CN116242795A (en) * | 2023-05-12 | 2023-06-09 | 山东益来环保科技有限公司 | Ultraviolet smoke analyzer and application method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183492A (en) * | 2010-12-15 | 2011-09-14 | 安徽循环经济技术工程院 | Three-band integrated atmospheric aerosol particle scattering coefficient measuring instrument and measuring method |
| CN102183482A (en) * | 2011-02-23 | 2011-09-14 | 中国科学院安徽光学精密机械研究所 | Non-disperse infrared multi-component flue gas analyzer |
| CN102788764A (en) * | 2012-08-21 | 2012-11-21 | 南京埃森环境技术有限公司 | Ultraviolet analyzer and detection method for low concentration smoke |
| CN204924918U (en) * | 2015-07-28 | 2015-12-30 | 安徽蓝盾光电子股份有限公司 | Linear light journey air quality automatic monitoring's long -range matter accuse system |
-
2016
- 2016-08-04 CN CN201610632789.1A patent/CN106290209A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183492A (en) * | 2010-12-15 | 2011-09-14 | 安徽循环经济技术工程院 | Three-band integrated atmospheric aerosol particle scattering coefficient measuring instrument and measuring method |
| CN102183482A (en) * | 2011-02-23 | 2011-09-14 | 中国科学院安徽光学精密机械研究所 | Non-disperse infrared multi-component flue gas analyzer |
| CN102788764A (en) * | 2012-08-21 | 2012-11-21 | 南京埃森环境技术有限公司 | Ultraviolet analyzer and detection method for low concentration smoke |
| CN204924918U (en) * | 2015-07-28 | 2015-12-30 | 安徽蓝盾光电子股份有限公司 | Linear light journey air quality automatic monitoring's long -range matter accuse system |
Cited By (14)
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| CN107219180A (en) * | 2017-06-15 | 2017-09-29 | 中国科学院合肥物质科学研究院 | A kind of portable detection of gas with multiple constituents device |
| CN107328727A (en) * | 2017-07-27 | 2017-11-07 | 天津国阳科技发展有限公司 | Flue gas analysis device and method based on ultraviolet difference technology |
| CN107328727B (en) * | 2017-07-27 | 2019-10-22 | 天津国阳科技发展有限公司 | Flue gas analysis device and method based on ultraviolet difference technology |
| CN108152236A (en) * | 2017-12-19 | 2018-06-12 | 宇星科技发展(深圳)有限公司 | A kind of gas cell of ultraviolet difference analyzer |
| CN108169143A (en) * | 2018-01-15 | 2018-06-15 | 杭州春来科技有限公司 | Minimum discharge measuring system and equipment |
| CN108051388A (en) * | 2018-01-16 | 2018-05-18 | 武汉敢为科技有限公司 | A kind of H2S gas ultraviolet spectra detection devices and its method |
| CN108318437A (en) * | 2018-01-19 | 2018-07-24 | 中国科学院合肥物质科学研究院 | A kind of portable flue gas in-situ measurement system based on the adjustable how anti-pool technology of ultraviolet opening |
| CN108398396A (en) * | 2018-02-28 | 2018-08-14 | 南京国电环保科技有限公司 | A kind of double light path high temperature lighting apparatus components of ultraviolet reflectance formula |
| CN108398396B (en) * | 2018-02-28 | 2021-04-09 | 南京国电环保科技有限公司 | Ultraviolet reflection type double-optical-path high-temperature optical-mechanical assembly |
| CN109883973A (en) * | 2018-06-01 | 2019-06-14 | 南京安荣信电子科技有限公司 | A kind of ultraviolet flue gas analyzer of total space coupling optical path |
| CN108801964A (en) * | 2018-09-20 | 2018-11-13 | 刘建松 | It is a kind of directly to measure formula gaseous pollutant emission monitoring device |
| CN112611729A (en) * | 2020-12-31 | 2021-04-06 | 杭州春来科技有限公司 | Chlorine gas detection system and detection method |
| CN113758920A (en) * | 2021-07-20 | 2021-12-07 | 北京新叶科技有限公司 | Ammonia escape monitoring device |
| CN116242795A (en) * | 2023-05-12 | 2023-06-09 | 山东益来环保科技有限公司 | Ultraviolet smoke analyzer and application method thereof |
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