CN108254506A - A kind of offline exhaust contaminant transient behavior method measuring device of gasoline car - Google Patents
A kind of offline exhaust contaminant transient behavior method measuring device of gasoline car Download PDFInfo
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- CN108254506A CN108254506A CN201810049819.5A CN201810049819A CN108254506A CN 108254506 A CN108254506 A CN 108254506A CN 201810049819 A CN201810049819 A CN 201810049819A CN 108254506 A CN108254506 A CN 108254506A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
Abstract
The present invention discloses a kind of offline exhaust contaminant transient behavior method measuring device of gasoline car, and by surrounding air filter, extraction flow measures and sampling unit, exhaust gas composition measure analytic unit, computer control unit etc. and form.Vehicle exhaust is connected by exhaust pipe with surrounding air filter, is mixed to form diluted exhaust with purified outside ambient air, is aspirated by wind turbine, after flowmeter metered flow, is discharged from wind turbine；Diluted exhaust is acquired with sampling pump and enters exhaust gas composition measurement analytic unit and is analyzed, and each unit and other assemblies are with calculating mechatronics, the operation of Computer Control Unit in device.Chassis dynamometer is additionally provided with for simulated automotive actual operating mode, final measurement is brake specific emission.Pollutant of gasoline engine exhaust gas transient behavior method measuring device provided by the invention, measurement result is accurate, simple and convenient operation and maintenance, equipment cost are low, is mainly used in that gasoline car new car is offline and the transient behavior method discharging of in-use automotive measures occasion.
Description
Technical field
The invention belongs to the detection technique fields of gasoline vehicle tail gas discharging pollutant, and in particular to a kind of offline row of gasoline car
Gas pollutant transient behavior method measuring device suitable for gasoline car new car is offline and in-use automotive discharge measuring occasion, uses transient state
Operating condition method measures exhaust emissions.
Background technology
According to statistics, stop in by the end of June, 2017 by the end of, the ownership of national motor vehicle is up to 3.04 hundred million, vehicle driver
Quantity is also constantly refreshing up to 3.71 hundred million people, wherein car ownership 2.05 hundred million, data.The volume of production and marketing for estimating automobile in 2017
More than 29,400,000 and the volume of production and marketing of motorcycle is up to 17,000,000.The traveling of a large amount of motor vehicles, to road traffic, energy consumption
Worsening influence is brought with environmental ecology etc., the situation is tense, and difficulty of governance is very big.Particularly motor vehicle is to big and medium-sized cities group
Environmental pollution is (including CO, CO2、HC、NOX, PM2.5 and haze etc.) contribution rate occupy large scale, seriously endangered people
The ecological environment depended on for existence, while putting forth effort to lower exhaust emission from motor vehicle emission source head, the whole society, particularly machine
Motor-car administrative department is also applicable in the science of vehicle emission pollution, can adhere to carrying out, is accepted extensively by society seeking to administer
Tail gas pollution analyte detection supervision scheme.
Discharge for the huge spark-ignition engine automobile of motor vehicle, particularly yield and ownership, first, strictly saving
Energy emission reduction is designed and is manufactured by standard, and ensures to produce the consistency and regulation service life of product discharge；Second is that strengthen to
With the use management of vehicle (including the detection architecture formed a complete and comprehensive system for collecting real estate fees and forced repairing etc., that is, carrying out I/M systems), according to testing result
Carry out rationally eliminating for the in-use automotive of unqualified discharge.For automobile annual output and using the huge realistic situation of ownership, need
The discharge of vehicle is measured, it is desirable that be：Measurement result is accurate, measurement method is simple and efficient, measurement cost is cheap etc..
Constantly upgrade that (e.g., light-duty vehicle discharge standard discharges rank from the state three of 2005 in automobile emissions standards now
Section is upgraded to six discharge phase of state in 2016 etc.), under the situation that constantly deteriorates of ecological environment, in-use automotive discharge measuring is also being held
The row standard (GB18285-2005) formulated in 2005, hence it is evident that fall behind Chinese society, particularly economic and technical development situation, society
Under the situation that meeting ecological environment constantly deteriorates, it is desirable that add sternly to the control of vehicular emission and management.Therefore specifically to in-use automotive
In the revision of discharge standard GB18285, an important change and regulation about gasoline car new production motor vehicle emission detection
It is exactly that gasoline car new car is offline, qualified storage or during manufacture, the Double idle state method continued to use more than 10 years is abrogated in exhaust pollutant measurement,
Transient behavior method must be used.
At present, what is be equipped on enterprise's production line is Double idle state method discharge measuring equipment, because without enterprise and the market demand,
Report without researching and developing and producing suitable for the transient behavior method measuring apparatus of the offline discharge measuring of gasoline car in the market.
Therefore, automobile industry and associated mechanisms urgent need want a kind of measurement result is accurate, measurement method is simple and efficient, measure into
This cheap offline exhaust contaminant transient behavior method measuring device of gasoline car, our company propose that one kind is suitable for first at home
Gasoline car new car is offline, the novel measurement dress of exhaust contaminant transient behavior method under qualified storage or manufacture and in-use automotive occasion
It puts, and can list in time.
Invention content
For solution more than technical problem, the present invention provides a kind of offline exhaust contaminant transient behavior method of gasoline car and measures dress
It puts, measurement result is accurate, measurement method is simple and efficient, equipment acquisition cost and use cost are low, has high practical value,
Be mainly used in gasoline car new car it is offline, it is qualified storage or manufacture and in-use automotive discharge measuring occasion, measure operating condition
Under brake specific emission (gram/kilometer), the design and manufacture of the present apparatus meet the whole that motor vehicle emission pattern proves operating condition method measurement
It is required that but consider under the huge in-use automotive use occasion of the offline production occasion having a large capacity and a wide range of new car and ownership, product
The demand of consistency detection is discharged, should be put forth effort on：Measure function and precision can meet discharge measuring purpose, it is easy to operate it is quick,
Equipment acquisition cost and use cost reduce such a composite request as possible.
To achieve the above object, the present invention provides following schemes：
The present invention provides a kind of offline exhaust contaminant transient behavior method measuring device of gasoline car, suitable for new car it is offline,
When qualification storage or manufacture and the occasion of in-use automotive discharge measuring, the sampling observation new car being placed on chassis dynamometer are arranged
Measurement is put, to check and assess automobile factory's batch production product discharge consistency situation.Including sequentially connected surrounding air mistake
Filter, flowmeter and rotational flow fan, outside ambient air enter to the surrounding air filter and are cleaned, and vehicle exhaust leads to
It crosses automobile exhaust pipe to connect with the surrounding air filter, vehicle exhaust is mixed to form dilute with purified outside ambient air
Exhaust is released, by the rotational flow fan negative-pressure ward, after the flowmeter measures diluted exhaust flow, is gone out from the rotational flow fan
Air is discharged at mouthful；And be vented with sampling pump acquisition Microdilution, the sampling pump is the anti-chemical diaphragm type sampling pump of oil-free, is passed through
Continuous sampling pipeline enters exhaust gas composition and measures analytic unit；The surrounding air filter, the flowmeter, the Whirl deposite tank
Machine, the sampling unit and the exhaust gas composition measure analytic unit with calculating mechatronics, are also configured with chassis dynamometer,
The chassis dynamometer obtains the extraction flow under automobile difference operating mode to the simulation of automobile operating state.It is further included in device
Calculation control unit and special-purpose software, establishing criteria, according to measure and processing requirement, automatically or semi-automatically control whole device
Operation, complete discharge measuring until result preserve and export.In the unit, computer is by extraction flow measuring unit and adopts
Sample unit, exhaust gas composition measure analytic unit, environmental work station etc. and obtain measurement data, it is converted by data acquisition module
To meet the digital signal of TCP/IP specifications, it is transmitted to computer and completes data processing work.Meanwhile when measured gasoline car is pacified
When discharge measuring is carried out on chassis dynamometer, the signals such as measurement data of chassis dynamometer are also through interchanger or ether
Net is transmitted directly in computer, and the signal processing synchronized.Final result exports and is measured automobile brake specific exhaust emission quality
(gram/kilometer).
Optionally, the surrounding air filter slightly imitates folding air cleaning pad by three-level filter core including level-one, two level is lived
Property charcoal air filtering core and three-level in effect pocket type air filtering core composition.
Optionally, the first printer, first printer and the calculating mechatronics are additionally provided with.
Optionally, the exhaust gas composition measurement analytic unit includes NDIR gas analyzers, FID gas analyzers and CLD
Gas analyzer, the NDIR gas analyzers, the FID gas analyzers and the CLD gas analyzers are adopted with described
Sample unit connects.
Optionally, the computer is connected with lan station, and the lan station includes Workstation host, clothes
Business device and interchanger, the server and the interchanger are connect with the Workstation host, and the Workstation host also connects
It is connected to the second printer.
Optionally, the flow is calculated as subsonic speed Venturi meter or critical flow Venturi meter, the Whirl deposite tank
Machine is centrifugal cyclone wind turbine.
Optionally, the exhaust gas composition measures analytic unit and further includes condenser, and the condenser enters to condense
The exhaust gas composition measures the vapor in analytic unit and measurement result is done with reducing contained humidity in dilution vehicle exhaust
It disturbs；It should also contain linear partition instrument and NO2Transfer efficiency analyzer, for the real-time calibration of analytical instrument unit.
Optionally, the sampling unit includes sampling pump and sampled acquisition pipeline, and the sampling pump is adopted by described
Collection pipeline measures analytic unit with the exhaust gas composition and connects.
Optionally, the sampling unit includes sampling pump, sampler bag and sampling pipe, and the sampling pump passes through the sampling pipe
It is connected with the sampler bag, the sampler bag measures analytic unit with the exhaust gas composition and connects.
Optionally, the computer is also associated with display terminal.
The present invention achieves following technique effect relative to the prior art：
1. in view of the revision of in-use automotive discharge measuring standard, the offline discharge measuring of clear stipulaties gasoline car new car, abrogate edge
With the double idle measuring method of more than 10 years, it is necessary to using transient behavior method measuring method.It is offline that the present invention provides a kind of gasoline car
Exhaust contaminant transient behavior method measuring device, meets market in urgent need, suitable for new car is offline, qualified storage or during manufacture, with
And the occasion of in-use automotive discharge transient condition discharge measuring.It not yet retrieves for gasoline car new car to be offline or in-use automotive discharge wink
The report of state operating condition method measuring method and device product.
2nd, the present apparatus design and manufacture meet motor vehicle emission pattern and prove whole requirements of operating condition method measurement, but consider face
Under the production occasion having a large capacity and a wide range offline to new car and the huge in-use automotive occasion of ownership, product discharges the need of consistency detection
It asks, should put forth effort on：Discharge measuring purpose, quick, equipment acquisition cost easy to operate and use can be met by measuring function and precision
Cost reduces such a composite request as possible.The present apparatus takes the lead in proposing using a kind of science, reasonable, adaptable as a result,
Subsonic speed Venturi meter SAO measures diluted exhaust flow；The production domesticization exhaust gas composition measuring instrument of independent research substitutes still
The a full set of analytical instrument of import is needed, significantly reduces equipment cost, promotes domestic analytical instrument update upgrading；The operation of device
Focus on automation and intelligence requirement etc. with management.
3rd, the technical solution of the offline exhaust contaminant transient behavior method measuring device of gasoline car that the present invention is disclosed and provided
And industrial products, meet that manufactory's gasoline car new car is offline and the measurement of the exhaust contaminant transient behavior method of in-use automotive, promote
Into upgrading, the enterprise transformation of China in-use automotive field discharge measuring technology and product, in-use automotive discharge is also pushed to repair
Order the implementation as early as possible of standard.The accurate, tool consistent with motor vehicle emission pattern Demonstration Method measurement result of the measuring device measurement result
Tracing back property, simple and convenient operation and maintenance is at low cost, and occasion is detected suitable for offline discharged with in-use automotive of new car having a large capacity and a wide range, because
This is with good Social benefit and economic benefit；
4 present apparatus take the lead in measuring using SAO flowmeters under the scene that new car is offline and in-use automotive discharge detects dilute for the first time
Extraction flow is released, is Technology design more suitably a kind of than use CFV critical flows Venturi meter.With measurement device letter
Single, measurement is accurately, measurement range of flow is wide, preferable to experimental enviroment variation adaptability, flow resistance is small to blower negative pressure requirement
Relatively low, many advantages, such as meeting and be adapted to occasion that in-use automotive has a large capacity and a wide range, is at low cost.
5. in device design, sample mode has continuous sampling and sampler bag sampling, is selected on demand for user.If laboratory
Conditions permit can realize 1 set of discharge measuring device while synchronize progress discharge measuring experiment for 2 sets of chassis dynamometers, save
Equipment investment.
6. employed in device design independent research production domesticization exhaust gas composition measuring instrument (mainly including NDIR, FID and
CLD gas analyzers) substitute it is still necessary to import a full set of analytical instrument, significantly reduce equipment cost, and pushed this quasi-instrument
Upgrading.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the offline exhaust contaminant transient behavior method measuring device structure diagram of gasoline car of the present invention；
Reference sign：1st, air filter；2nd, flowmeter；3rd, rotational flow fan；301st, rotational flow fan exports；4th, it samples
Unit；401st, sampling pump；402nd, sampled acquisition pipeline；403rd, sampler bag；5th, exhaust gas composition measures analytic unit；501st, NDIR gas
Body analyzer；502nd, FID gas analyzers；503rd, CLD gas analyzers；6th, computer；7th, lan station；701st, it works
Station host；702nd, server；703rd, interchanger；704th, the second printer；8th, the first printer；9th, display terminal
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide the offline exhaust contaminant transient behavior method measuring device of gasoline car, measurement result
Accurately, measurement method is simple and efficient, equipment acquisition cost and use cost are low, has higher practical value.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying example, the present invention is described in further detail.
Embodiment 1：
Invention provides a kind of offline exhaust contaminant transient behavior method measuring device of gasoline car, as shown in Figure 1, device master
It will be by surrounding air filter, extraction flow measurement and sampling unit, exhaust gas composition measure analytic unit, computer controls and pipe
Manage the compositions such as unit, including sequentially connected surrounding air filter 1, flowmeter 2 and rotational flow fan 3, outside ambient air into
Enter to surrounding air filter 1 and be cleaned, vehicle exhaust is connected by automobile exhaust pipe with surrounding air filter 1, automobile
Tail gas is mixed to form diluted exhaust with purified outside ambient air, by 3 negative-pressure ward of rotational flow fan, through the flowmeter 2
After measuring diluted exhaust flow, air is discharged at rotational flow fan outlet 301；And acquire Microdilution with sampling pump 401 and be vented,
Sampling pump 401 is the anti-chemical diaphragm type sampling pump of oil-free, and entering exhaust gas composition through continuous sampling pipeline 402 measures analytic unit 5,
NDIR analyzers, FID analyzers, CLD analyzers etc. are mainly configured in this, to the CO and CO in diluted exhaust2, THC, NO and NO2
It is analyzed Deng concentration (ppm) is carried out；Surrounding air filter 1, flowmeter 2, rotational flow fan 3, sampling unit 4 and exhaust gas composition measure
Analytic unit 5 is electrically connected with computer 6, and computer controls the operation of whole device.Chassis dynamometer is also configured with, chassis is surveyed
Work(machine realizes the simulation to automobile operating state and then obtains the tail gas under automobile difference operating mode by roller simulated roadway resistance
Flow, the signal of chassis dynamometer are transmitted directly to computer 6, and at the signal synchronized by interchanger or Ethernet
Reason.Final discharge measuring result represents that measurement result is automatically saved or printed out with brake specific exhaust emission quality (gram/kilometer).Yu Ben
In embodiment, the first printer 8 is provided with, and be electrically connected with computer 6, measuring analysis result can print on A4 paper, just
In measurement result is shown and is preserved with papery mode.
Since outside ambient air is there are impurity, discharge measuring is influenced as a result, in specific embodiments of the present invention, if
Surrounding air filter 1 is equipped with, the air filter slightly imitates folding air cleaning pad by three-level filter core including level-one, two level is lived
Property charcoal air filtering core and three-level in effect pocket type air filtering core composition, in the hope of reducing surrounding air impurity to greatest extent to discharge measuring
Influence, this to discharge high-stage it is substandard measure it is most important.
In order to analyze the ingredient of diluted exhaust comprehensively, in specific embodiments of the present invention, it is single that exhaust gas composition measures analysis
Member 5 includes NDIR and is not divided infrared method gas analyzer 501, FID hydrogen flameionizations gas analyzer 502 and CLD chemistry
Luminescence method gas analyzer 503, NDIR gas analyzers 501, FID gas analyzers 502 and CLD gas analyzers 503 with
Sampling unit 4 connects, and NDIR gas analyzers 501 are used to measure CO and CO2, FID gas analyzers 502 for measuring THC,
CLD gas analyzers 503 are used to measure NOX, include NO and NO2, measurement result is accurate, can for diluted exhaust ingredient into
Row adequately analysis comprehensively, and correspond to and make specific aim processing.
In order to ensure exhaust gas composition measures, analysis is accurate, and in specific embodiments of the present invention, the exhaust gas composition measures
Analytic unit 5 further includes condenser, and the condenser enters to the exhaust gas composition and measure water in analytic unit 5 to condense
Steam is to reduce contained humidity in diluted exhaust, the particularly interference to NDIR gas analyzer measurement process.
In order to accomplish the real-time calibration of analytical instrument unit, in specific embodiments of the present invention, the exhaust gas composition
It measures in analytic unit 5 and further includes linear partition instrument and NO2Transfer efficiency analyzer.
In specific embodiments of the present invention, be additionally provided with containing atmospheric pressure meter, thermometer, hygrometer environmental work
It stands, for measuring environment pressure, temperature and humidity, convenient for measurement result is transformed under calibration ambient condition.
In specific embodiments of the present invention, flowmeter 2 is subsonic speed Venturi meter or critical flow venturi flow
Meter, rotational flow fan 3 are centrifugal cyclone wind turbine, in the case where this new car is offline and in-use automotive measures application scenario, take the lead in using for the first time
Subsonic nozzle flowmeter SAO (Smooth Approach Orifice) measures diluted exhaust flow, has measurement device letter
It is single, measure wide range of flow, high certainty of measurement, meet and be adapted to the occasion that new car is offline and in-use automotive has a large capacity and a wide range, into
This low plurality of advantages.
Sampling unit 4 includes sampling pump 401 and sampled acquisition pipeline 402, and sampling pump 401 passes through sampled acquisition pipeline 402
With exhaust gas composition measure analytic unit 5 connect, diluted exhaust can be sampled by sampled acquisition pipeline and enter be vented into
Divide and measure analytic unit progress subsequent analysis, computer 6 is also associated with display terminal 9, and measurement and analysis result can be carried out
Terminal is shown.
In specific embodiments of the present invention, computer 6 may be connected to lan station 7, and lan station 7 includes
Workstation host 701, server 702 and interchanger 703, server 702 and interchanger 703 are connect with Workstation host 701,
Computer can be provided with multiple, and Workstation host 701 is mainly used for the unified management to each computer and control, work station
Host 701 is also associated with the second printer 704.Specifically, multiple terminals can be provided with, Workstation host 701 is used
Unified management and control in local area network each unit, Workstation host 701 is also associated with the second printer 704, for paper
Matter prints, 702 operation and safety for being mainly used for LAN of server (containing fire wall).
Embodiment 2：
The present embodiment is to 1 further improved embodiment of embodiment, includes the full content of embodiment 1, i.e. this reality
The offline exhaust contaminant transient behavior method measuring device of gasoline car for applying example offer includes the offline exhaust pollution of 1 gasoline car of embodiment
The entire infrastructure feature of object transient behavior method measuring device, thes improvement is that：
Sampler bag 403 is additionally provided with, i.e. sampling unit 4 includes sampling pump 401, sampler bag 403 and sampling pipe, sampling pump
401 are connected by sampling pipe with sampler bag 403, and sampler bag 403 measures analytic unit 5 with exhaust gas composition and connects, diluted exhaust energy
Sampler bag is enough entered by sampling pipe, and is sampled and is stored by way of sampler bag, exhaust gas composition is entered back into and measures and divide
It analyses unit and carries out subsequent analysis.
The sampler bag sampling plan of pipeline continuous sampling scheme and embodiment 2 for embodiment 1, two ways can select
One, because user demand can also use simultaneously, if in addition, laboratory condition permission, can also realize 1 set of discharge measuring device
Discharge measuring experiment is carried out at the same time for 2 sets of chassis dynamometers.
It can be seen that pollutant of gasoline engine exhaust gas transient behavior method measuring device provided by the invention, designing scheme science,
It is rationally applicable in, measurement result is accurate, measurement method is simple and efficient, equipment acquisition cost and use cost are low, meets in-use automotive
Requirements specified in standard have high practical value.
It should be noted that the design stated in the pollutant of gasoline engine exhaust gas transient behavior method measuring device of the present invention
The selection of scheme and function element, the experience of new development and the engineering practice of the philosophy and technique that can rest on a scientific basis completely carry out
New innovation and improvement.Its evaluation criterion should be at present, with reference to vehicle exhaust measurement standard, it should discharge pattern with automobile
The result of the test of Demonstration Method is consistent, can trace to the source.
It applies specific case in this specification to be expounded the principle of the present invention and embodiment, above example
Explanation be merely used to help understand the present invention method and its core concept；Meanwhile for those of ordinary skill in the art,
Thought according to the present invention, in specific embodiments and applications there will be changes.In conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (10)
1. a kind of offline exhaust contaminant transient behavior method measuring device of gasoline car, suitable for new car is offline, qualified storage or goes out
During factory and the occasion of in-use automotive transient behavior method discharging measurement, the sampling observation new car being placed on chassis dynamometer are discharged
It measures, to check and assess automobile factory's batch production product discharge consistency situation, it is characterised in that：Including sequentially connected ring
Border air filter (1), flowmeter (2) and rotational flow fan (3), outside ambient air enter to the surrounding air filter
(1) and be cleaned, vehicle exhaust is connected by exhaust pipe with the surrounding air filter (1), vehicle exhaust with it is purified
Surrounding air is mixed to form diluted exhaust, and diluted exhaust is measured through the flowmeter (2) by the rotational flow fan (3) negative-pressure ward
After flow, air is discharged at rotational flow fan outlet (301)；And be vented with sampling pump (401) acquisition Microdilution, it is described
Sampling pump (401) is the anti-chemical diaphragm type sampling pump of oil-free, and analysis list is measured into exhaust gas composition through continuous sampling pipeline (402)
First (5)；The surrounding air filter (1), the flowmeter (2), the rotational flow fan (3), the sampling unit (4) and institute
It states exhaust gas composition measurement analytic unit (5) to be electrically connected with computer (6), is also configured with chassis dynamometer, the Chassis dynamometer
Machine obtains the tail gas under automobile difference operating mode flow to the simulation of automobile operating state.
2. the offline exhaust contaminant transient behavior method measuring device of gasoline car according to claim 1, it is characterised in that：Institute
State surrounding air filter (1) by three-level filter core including level-one slightly imitate folding air cleaning pad, second order activity charcoal air filtering core and
Pocket type air filtering core composition is imitated in three-level.
3. the offline exhaust contaminant transient behavior method measuring device of gasoline car according to claim 1, it is characterised in that：Also
The first printer (8) is provided with, first printer (8) is electrically connected with the computer (6).
4. the offline exhaust contaminant transient behavior method measuring device of gasoline car according to claim 1, it is characterised in that：Institute
It states exhaust gas composition measurement analytic unit (5) and includes NDIR gas analyzers (501), FID gas analyzers (502) and CLD gases
Analyzer (503), the NDIR gas analyzers (501), the FID gas analyzers (502) and the CLD gas analyzers
(503) it is connected with the sampling unit (4).
5. the offline exhaust contaminant transient behavior method measuring device of gasoline car according to claim 1, it is characterised in that：Institute
It states computer (6) and is connected with lan station (7), the lan station (7) includes Workstation host (701), service
Device (702) and interchanger (703), the server (702) and the interchanger (703) with the Workstation host (701)
Connection, the Workstation host (701) are also associated with the second printer (704).
6. the offline exhaust contaminant transient behavior method measuring device of gasoline car according to claim 1, it is characterised in that：Institute
Flowmeter (2) is stated as subsonic speed Venturi meter or critical flow Venturi meter, the rotational flow fan (3) is centrifugal cyclone
Wind turbine.
7. the offline exhaust contaminant transient behavior method measuring device of gasoline car according to claim 1, it is characterised in that：Institute
It states exhaust gas composition measurement analytic unit (5) and further includes condenser, the condenser enters to the exhaust gas composition survey to condense
Vapor in amount analytic unit (5) dilutes interference of the contained humidity to measurement result in vehicle exhaust to reduce；It should also contain
Linear partition instrument and NO2Transfer efficiency analyzer, for the real-time calibration of analytical instrument unit.
8. the offline exhaust contaminant transient behavior method measuring device of gasoline car according to claim 1, it is characterised in that：Institute
It states sampling unit (4) and includes sampling pump (401) and sampled acquisition pipeline (402), the sampling pump (401) is adopted by described
Collection pipeline (402) measures analytic unit (5) with the exhaust gas composition and connects.
9. the offline exhaust contaminant transient behavior method measuring device of gasoline car according to claim 1, it is characterised in that：Institute
It states sampling unit (4) and includes sampling pump (401), sampler bag (403) and sampling pipe, the sampling pump (401) passes through the sampling
Pipe is connected with the sampler bag (403), and the sampler bag (403) measures analytic unit (5) with the exhaust gas composition and connects.
10. the offline exhaust contaminant transient behavior method measuring device of gasoline car according to claim 1, it is characterised in that：
The computer (6) is also associated with display terminal (9).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177736A (en) * | 2020-09-04 | 2021-01-05 | 中国煤炭科工集团太原研究院有限公司 | Portable explosion-proof diesel engine trackless vehicle waste gas detection method and system |
| CN112525557A (en) * | 2020-12-28 | 2021-03-19 | 中国第一汽车股份有限公司 | Test platform for gasoline vehicle pollutant emission detection and test method thereof |
| CN114167002A (en) * | 2021-12-08 | 2022-03-11 | 西安多普多信息科技有限公司 | Method and device for rapidly detecting pollutants |
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Application publication date: 20180706 |