CN106092840A - A kind of large-scale waste gas of pollutant emission test method - Google Patents
A kind of large-scale waste gas of pollutant emission test method Download PDFInfo
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- 239000002912 waste gas Substances 0.000 title claims abstract description 62
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 32
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 32
- 238000010998 test method Methods 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 claims abstract description 70
- 238000005259 measurement Methods 0.000 claims abstract description 50
- 239000013618 particulate matter Substances 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000000356 contaminant Substances 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 12
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 8
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 8
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 42
- 150000001768 cations Chemical class 0.000 claims description 17
- 238000005070 sampling Methods 0.000 claims description 15
- 230000004044 response Effects 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 150000001450 anions Chemical class 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 230000005684 electric field Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 230000005012 migration Effects 0.000 claims description 2
- 238000013508 migration Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000001745 non-dispersive infrared spectroscopy Methods 0.000 claims 2
- 239000012535 impurity Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 4
- CSJDCSCTVDEHRN-UHFFFAOYSA-N methane;molecular oxygen Chemical compound C.O=O CSJDCSCTVDEHRN-UHFFFAOYSA-N 0.000 abstract description 3
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 abstract description 3
- 239000012491 analyte Substances 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 241000283074 Equus asinus Species 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000011545 laboratory measurement Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0656—Investigating concentration of particle suspensions using electric, e.g. electrostatic methods or magnetic methods
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
-
- 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
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- 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
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
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- 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
- G01N21/59—Transmissivity
- G01N21/61—Non-dispersive gas analysers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
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Abstract
The present invention relates to a kind of large-scale waste gas of pollutant emission test method, this method of testing includes: particulate matter test, Contaminant measurement, mass-flow measurement, data reception portion, data process.Hydrocarbon, carbon oxygen, nitrogen oxygen contaminants that concentration, the mass flow of waste gas in particle concentration that the present invention can be used to measure in waste gas simultaneously, waste gas, real-time storage measurement data can facilitate the process that data are the most same, simplifies the flow process of exhaust emission analyte detection.
Description
Technical field
The present invention relates to waste gas discharge detection technique field, particularly relate to a kind of large-scale waste gas of pollutant emission test method
Background technology
At present, increasing large-scale polluter is applied in commercial production, transportation and daily life, including boats and ships
Subsidiary engine, high-rating generator, boiler etc..
General steamer has three cauldrons: main boiler, donkey boiler, and exhaust boiler.Drive marine auxiliary, equipment and confession
Should live and be referred to as donkey boiler with the boiler of vapour；The effect of exhaust boiler is, in the navigation of boats and ships, is passed through aerofluxus at main frame
In boiler ad hoc in flue, utilize the heat energy of main exhaust, the water in boiler is heated into saturated vapor, to substitute auxiliary pot
Stove, improves again the thermal efficiency of power set simultaneously.
China's thermal power generation, mainly based on fire coal, accounts for about 80%.The waste gas of coal-burning power plant is mainly derived from boiler combustion
Burn the flue gas produced, the dust-laden exhaust gas that ash storehouse aerofluxus and coal yard produce in the middle of pneumatic ash transmitting system, and coal yard, raw coal are broken and
The produced coal dust of coal conveying.
These polluter in the course of the work, give off substantial amounts of gas pollutant SO to atmospheric environment2、NOx、CO、CO2、
The material that Organic substance and PM2.5 etc. are harmful.And the test currently for large-scale discharge of pollutant sources waste gas needs mostly
Return to after sampling at the scene analyze under laboratory environment, less at the equipment of large-scale discharge of pollutant sources waste gas field conduct detection,
The test system that simultaneously can detect multiple parameters of the waste gas of large-scale discharge of pollutant sources is less, is formed without making
User accurately measures the test system of waste gas discharge, makes troubles to the Detection & Controling of waste gas discharge.
Summary of the invention
In view of above-mentioned analysis, it is desirable to provide a kind of large-scale waste gas of pollutant emission test method, in order to simultaneously
Detecting multiple parameters of the waste gas of large-scale discharge of pollutant sources, test process is simple to operate, and certainty of measurement is higher.
The purpose of the present invention is mainly achieved through the following technical solutions:
A kind of large-scale waste gas of pollutant emission test method, this method of testing includes: particulate matter test, Contaminant measurement,
Mass-flow measurement, data receiver, data process；Particulate matter test, Contaminant measurement, mass-flow measurement are carried out simultaneously, point
Not Ce Liang pollutant levels, exhaust air mass flow in particle concentration, waste gas in waste gas, measurement data is simultaneously transmit to data and connects
Receive structure, another with carrying out data process；Particulate matter test, Contaminant measurement, mass-flow measurement are waste gas discharge scene
Measure in real time.
In particulate matter test, first prepare pure compressed air, then compressed air is passed through particulate matter test module.
The Faraday cup contained in particulate matter test module and sensor, have corona charging device, compression sky in Faraday cup
The 2 kilovolts of electrions that are about that gas is produced by platinum corona pin ionize, and form cation and anion, and cation is pushed through spray
Emitter throat, owing to compressed air flowing causes negative pressure that throat produces for aspirating sample gas, compressed-air actuated flow is by air
Pump produces, and this flow is unrelated with the flow in flue gas leading；The part of cation carried in compressed air and the particulate matter in sample gas
Combining, the cation not being combined with particulate matter is promoted to sensor by the electric field just trapping voltage generation from contre electrode
Wall is assembled, and reaches to remove the purpose of free cation, and the particulate matter being the most only combined with cation leaves sensor.At sample gas
Import (17) forms electric potential difference with sample gas outlet (16)；
Comprising electrometer in sensor, electrometer is for measuring the Faraday cup electromotive force in sample gas import with sample gas outlet
Difference, this difference is directly proportional to quality and the number concentration of particulate matter in waste gas.
In particulate matter test, compressed air is that normal air passes sequentially through air compressor, air drier, air filtration
Device is prepared.
The measuring technology of sensor is that ion migration analyzes method；The response time of sensor is less than 0.3s；Sensor
Particle size test scope is: 23nm-2.5 μm；The particle concentration test scope of sensor is 1 μ g/m3-250mg/m3。
Particulate matter test module samples pressure limit is 1-10bar；Particulate matter test module samples temperature reaches as high as 850
℃。
In Contaminant measurement, waste gas is sampled pump and is introduced into instrument by hot type sampling tube, through heating membrane filtration,
Remove particulate contaminant, after sampling pump, be divided into two parts；
A portion is passed through HFID and tests module, utilizes hydrogen flameionization to analyze method and measures the dense of Hydrocarbon
Degree；
Another part is through subcooler and condenser, in order to remove the moisture in sample gas, is then introduced into NDIR module profit
CO and CO is measured with non-dispersive formula analytical IR method2Concentration, then NDUV module utilizes non-dispersive formula ultraviolet analysis method to survey
Determine NO and NO2Concentration.
The measurement of concetration scope that HFID test module is surveyed is 0-30000ppm, and degree of accuracy is ± 1% reading, and response time is little
In 2.5s；The measurement upper limit of NDIR test module is 100%, and measurement lower limit is trace (10-6) concentration；NDUV test module for
NO test scope is 0-3000ppm, for NO2Test scope is 0-500ppm, and measuring resolution is 0.3ppm, accuracy is ±
2% reading, response time is less than 2.5s.
In mass-flow measurement, use temperature and pressure transmitter to record temperature and the pressure of waste gas, and utilize ideal gas
State equation tries to achieve waste gas density size；
Effusion meter is used to record exhaust gas volume flow；
Density according to waste gas and the volume flow of waste gas, can be multiplied and directly try to achieve exhaust air mass flow.
Particulate matter test, Contaminant measurement, mass-flow measurement the data obtained are connected with computer through data-interface,
In order to receive and to process measurement data.
The present invention has the beneficial effect that:
1, the present invention passes through respectively, and particulate matter test, Contaminant measurement, mass-flow measurement can be measured or indirectly respectively
Particle concentration in measurement waste gas, hydrocarbon, carbon oxygen, nitrogen oxygen contaminants that concentration, the mass flow of waste gas in waste gas, and use
Computer real-time storage measurement data, thus the most same process of data can be facilitated.The present invention can measure simultaneously and locate
The multinomial contamination index of reason waste gas, it is not necessary to the complex process of " spot sampling, laboratory measurement ", whole process can be at waste gas discharge scene
Completing, possess higher real-time characteristic, operational approach is simple, substantially reduces the time that wasted nickel catalyst is consumed, and simplifies
The emission control of large-scale waste gas of pollutant.
2, the test structural response time that the present invention uses is short, and test scope is wide, and measuring accuracy is high, and wherein, particulate matter is surveyed
The examination structural response time, particle size test scope was up to below 0.3s: minimum grain size up to 23nm, maximum particle diameter up to
2.5 μm, particulate matter quality concentrations tested ranged is 1 μ g-250mg/m3；HFID test module measure response time up to 2.5s with
Under, for different pollutant Cmin scopes up to 0-90ppm, Cmax scope up to 0-30000ppm, degree of accuracy can
Reach ± 1% reading；It is 100% that NDIR test module measures the upper limit, and measurement lower limit can carry out trace (10-6 level) and analyze, necessarily
In weight range, even if gas concentration has minimum change also can detect；NDUV test module response time up to 2.5s with
Under, it is 0-3000ppm for NO test scope, for NO2Test scope is 0-500ppm, measuring resolution up to 0.3ppm,
Accuracy is up to ± 2% reading.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure, particulate matter test structure 1, air compressor 11, air drier 12, air filter 13, air pressure
Adjustor 14, particulate matter test module 15, sample gas outlet 16, sample gas import 17, Contaminant measurement structure 2, hot type sampling tube
21, heating filter membrane 22, sampling pump 23, cooler 24, condenser 25, NDIR test module 26, NDUV test module 27, HFID survey
Die trial block 28, mass-flow measurement structure 3, temperature and pressure transmitter 31, effusion meter 32, data-interface 4, computer 5.
In figure, arrow is gas flow direction.
Detailed description of the invention
The embodiment of the present invention provides a kind of large-scale waste gas of pollutant emission test method.
It is illustrated in figure 1 a kind of waste gas emission test method of large-scale polluter.
A kind of large-scale waste gas of pollutant emission test method, the equipment that this method of testing uses includes: particulate matter test knot
Structure 1, Contaminant measurement structure 2, mass-flow measurement structure 3, data-interface 4, computer 5.
Particulate matter test structure 1 is surveyed in order to complete particulate matter, including: air compressor 11, air drier 12, air mistake
Filter 13, air pressure regulator 14, particulate matter test module 15, sample gas outlet 16, sample gas import 17.
Air compressor 11, air drier 12, air filter 13 and air pressure regulator 14 4 are sequentially connected,
Compressed air is provided for particulate matter test module 15.
To the exhaust gas particle thing emission test process of large-scale polluter particularly as follows: be dried via air compressor 11, air
Device 12, air filter 13, air pressure regulator 14 obtain clean compressed air, are then fed into particulate matter test module 15；
The Faraday cup contained in particulate matter test module 15 and sensor, have corona charging device in Faraday cup, particulate matter is at farad
It is electrically charged and is promoted by the ejector diluter of sensor internal in glass；Clean compressed air is by being about that platinum corona pin produces
2 kilovolts of electrion ionization, form cation and anion, and cation is pushed through ejector throat；Due to compressed air
The negative pressure causing throat to produce that flows is for aspirating sample gas, and compressed-air actuated flow is produced by air pump, this flow and flue gas leading
In flow unrelated；The part of cation carried in compressed air combines with the particulate matter in sample gas, is not combined with particulate matter
Cation promoted assemble to sensor wall by the electric field that voltage produces that just traps from contre electrode, reaching the most just removing freely
The purpose of ion, the particulate matter being the most only combined with cation leaves sensor；Electrometer in sensor is used for measurement method
Draw the glass of electric potential difference of (sample gas outlet 16), this difference and particulate matter in waste gas after (sample gas import 17) and charging before charging
Quality and number concentration are directly proportional.
Contaminant measurement structure 2 is in order to complete Contaminant measurement, including: hot type sampling tube 21, heating filter membrane 22, sampling
Pump 23, cooler 24, condenser 25, NDIR test module 26, NDUV test module 27, HFID test module 28.
Hot type sampling tube 21, heating filter membrane 22 and sampling pump 23 are sequentially connected, and sampling pump 23 has two output channels,
One of them is connected to HFID and tests module 28, and another is sequentially connected to NDIR by cooler 24 and condenser 25 and tests mould
Block 26 and NDUV tests module 27.
To gaseous pollutant test process in the waste gas of large-scale polluter particularly as follows: use sampling pump 23 to be adopted by hot type
Sample gas is introduced instrument by sample pipe 21, uses heating filter membrane 22 to filter sample gas, and after sampling pump 23, a part of sample gas enters
Enter in HFID module 28, utilize hydrogen flameionization to analyze method (FID) and measure the discharge capacity of Hydrocarbon (HC)；Another
Part sample gas passes through cooler 24 and condenser 25, to remove the moisture in sample gas, then sequentially enters NDIR module 26 He
NDUV module 27, NDIR module 26 utilizes non-dispersive formula analytical IR method (NDIR) to measure CO and CO2Concentration, NDUV module 27
Non-dispersive formula ultraviolet analysis method is utilized to measure NO and NO2Concentration.
Mass-flow measurement structure 3 is in order to difficulty action accomplishment flow rate test, including temperature and pressure transmitter 31 and effusion meter 32,
Temperature and the pressure of waste gas can be recorded by temperature and pressure transmitter 31, and waste gas density size is tried to achieve in calculating；Flow can be passed through
Meter 32 records exhaust gas volume flow；Waste gas density and volume flow thereof can be passed through, can calculate and try to achieve exhaust air mass flow.
Temperature and pressure transmitter 31, effusion meter 32, HFID test module 28, NDIR test module 26, NDUV test module
27 are all connected with data-interface 4 with particulate matter test module 15, and data-interface 4 is connected with computer 5, the real-time row recorded
Put data to be displayed and stored in computer 5.
Testing the pollutant emission of certain model high-rating generator in the present embodiment, result shows, runs under certain operating mode
Time, its exhaust flow rate is 8.8645m/s, and volume flow is 0.9890m3/ s, mass flow is 1232.32mg/s, CO2Volume is dense
Degree is 5.28%, and CO volumetric concentration is 0.025%, and HC volumetric concentration is 12.2ppm, NOxVolumetric concentration is 809.4ppm, granule
Thing discharge is 4.5601mg/s；CO2Mass concentration be 65.0665g/s, CO mass concentration be 0.3081g/s, NOxMass concentration is
0.9974g/s.This time test data and gross data contrast display, the present invention can accurately measure in large-scale waste gas of pollutant various
The discharge of pollutant.
The present invention can be measured respectively by particulate matter test, Contaminant measurement, mass-flow measurement or indirectly be measured useless
Particle concentration in gas, hydrocarbon, carbon oxygen, nitrogen oxygen contaminants that concentration, the mass flow of waste gas in waste gas, measurement result compares
Accurately, can be directly used for the comparison of the discharge amount of exhaust gas of large-scale polluter；Additionally, use computer real-time storage measurement data,
Thus the most same process of data can be facilitated, can obtain the variation tendency of exhaust emission content, and time control useless
Gas discharges；Operational approach of the present invention is simple, simplifies the emission control process of large-scale waste gas of pollutant.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replacement,
All should contain within protection scope of the present invention.
Claims (10)
1. a large-scale waste gas of pollutant emission test method, described method of testing includes: particulate matter test, Contaminant measurement,
Mass-flow measurement, data receiver, data process；Described particulate matter test, Contaminant measurement, mass-flow measurement enter simultaneously
OK, measuring in waste gas pollutant levels, exhaust air mass flow in particle concentration, waste gas respectively, measurement data is simultaneously transmit to
Data receiver structure, another with carrying out data process；Described particulate matter test, Contaminant measurement, mass-flow measurement are useless
The existing field real-time measurement of gas discharge.
Large-scale waste gas of pollutant emission test method the most according to claim 1, it is characterised in that described particulate matter is tested
During, first prepare pure compressed air, then compressed air is passed through particulate matter test module (15).
Large-scale waste gas of pollutant emission test method the most according to claim 2, it is characterised in that described particulate matter is tested
The Faraday cup contained in module (15) and sensor, have corona charging device in described Faraday cup, described pure compression is empty
The 2 kilovolts of electrions that are about that gas is produced by platinum corona pin ionize, and form cation and anion, and cation is pushed through spray
Emitter throat, part of cation combines with the particulate matter in sample gas, and anion and the cation not being combined with particulate matter are come
Promote from the electric field just trapping voltage generation of contre electrode and assemble to sensor wall, reach to remove anion and free cation
Purpose, the particulate matter being the most only combined with cation leaves sensor, exports (16) shape at sample gas import (17) and sample gas
Become electric potential difference；
Comprising electrometer in described sensor, described electrometer is used for measuring Faraday cup and exports with sample gas in sample gas import (17)
(16) electric potential difference, this difference is directly proportional to quality and the number concentration of particulate matter in waste gas.
Large-scale waste gas of pollutant emission test method the most according to claim 3, it is characterised in that the survey of described sensor
Examination technology is that ion migration analyzes method；The response time of described sensor is less than 0.3s, and particle size test scope is
23nm-2500nm, particle concentration test scope is 1 μ g/m3-250mg/m3。
Large-scale waste gas of pollutant emission test method the most according to claim 3, it is characterised in that described particulate matter is tested
Module samples pressure limit is 1-10bar, and sample temperature is up to 850 DEG C.
Large-scale waste gas of pollutant emission test method the most according to claim 2, it is characterised in that described particulate matter is tested
During, described compressed air passes sequentially through air compressor (11), air drier (12), air filtration by normal air
Device (13) is prepared.
Large-scale waste gas of pollutant emission test method the most according to claim 1, it is characterised in that described Contaminant measurement
During, waste gas is sampled pump (23) and is introduced into instrument by hot type sampling tube (21), filters through heating filter membrane (22), removes
Degranulation thing impurity, is divided into two parts after sampling pump (23)；
A portion is passed through HFID test module (28), utilizes hydrogen flameionization to analyze method and measures the dense of Hydrocarbon
Degree；
Another part, through subcooler (24) and condenser (25), in order to remove the moisture in sample gas, is then introduced into NDIR mould
Block (26) utilizes non-dispersive formula analytical IR method to measure CO and CO2Concentration, then NDUV module (27) utilizes non-dispersive formula ultraviolet
Provision of on-line analysis methodology measures NO and NO2Concentration.
Large-scale waste gas of pollutant emission test method the most according to claim 7, it is characterised in that described HFID tests mould
The measurement of concetration scope of block is 0-30000ppm, and degree of accuracy is ± 1% reading, and response time is below 2.5s；Described NDIR surveys
The measurement upper limit of die trial block is 100%, and measurement lower limit is 1ppm；Described NDUV test module is 0-for NO test scope
3000ppm, for NO2Test scope is 0-500ppm, and measuring resolution is 0.3ppm, and accuracy is ± 2% reading, rings
2.5s it is respectively less than between Ying Shi.
Large-scale waste gas of pollutant emission test method the most according to claim 1, it is characterised in that described mass flow is surveyed
During examination, use temperature and pressure transmitter (31) to record temperature and the pressure of waste gas, and utilize The Ideal-Gas Equation to ask
Obtain waste gas density size；
Effusion meter (32) is used to record exhaust gas volume flow；
Density according to waste gas and the volume flow of waste gas, can be multiplied and directly try to achieve exhaust air mass flow.
Large-scale waste gas of pollutant emission test method the most according to claim 1, it is characterised in that by described particulate matter
Test, Contaminant measurement, mass-flow measurement the data obtained are connected with computer (5) through data-interface (4), in order to receive also
Process measurement data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373916.0A CN106092840B (en) | 2016-05-31 | 2016-05-31 | Method for testing exhaust gas discharge of large pollution source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373916.0A CN106092840B (en) | 2016-05-31 | 2016-05-31 | Method for testing exhaust gas discharge of large pollution source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106092840A true CN106092840A (en) | 2016-11-09 |
| CN106092840B CN106092840B (en) | 2017-05-03 |
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| CN108444536A (en) * | 2018-05-16 | 2018-08-24 | 浙江大学 | The measurement device and method of portable refuse landfill sulfurous gas discharge capacity |
| CN109596559A (en) * | 2018-11-08 | 2019-04-09 | 苏州宝化炭黑有限公司 | The associated detecting method and detection system of carbon black tail gas each component content |
| CN109696208A (en) * | 2018-12-29 | 2019-04-30 | 北京维禹特科技发展有限公司 | A kind of waste gas monitoring traceability system and method |
| CN111624142A (en) * | 2020-05-25 | 2020-09-04 | 北京理工大学 | Method for testing emission of brake particles of motor vehicle |
| US20210138448A1 (en) * | 2017-07-28 | 2021-05-13 | Basf Se | A city pollution environment simulation apparatus |
| CN113049320A (en) * | 2021-04-13 | 2021-06-29 | 北京工业大学 | Method and device for real-time quantitative sampling of exhaust gas for measuring particulate matters in automobile exhaust |
| JP2021135141A (en) * | 2020-02-26 | 2021-09-13 | 国立研究開発法人産業技術総合研究所 | Device and method of preparing particle evaluation specimen |
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| CN111624142A (en) * | 2020-05-25 | 2020-09-04 | 北京理工大学 | Method for testing emission of brake particles of motor vehicle |
| CN113049320A (en) * | 2021-04-13 | 2021-06-29 | 北京工业大学 | Method and device for real-time quantitative sampling of exhaust gas for measuring particulate matters in automobile exhaust |
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