CN108487978A - A kind of exhaust gas post-treatment device flow field uniformity evaluation system - Google Patents
A kind of exhaust gas post-treatment device flow field uniformity evaluation system Download PDFInfo
- Publication number
- CN108487978A CN108487978A CN201810641795.2A CN201810641795A CN108487978A CN 108487978 A CN108487978 A CN 108487978A CN 201810641795 A CN201810641795 A CN 201810641795A CN 108487978 A CN108487978 A CN 108487978A
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- treatment device
- exhaust gas
- flow field
- evaluation system
- gas post
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- 238000011077 uniformity evaluation Methods 0.000 title claims abstract description 23
- 238000005259 measurement Methods 0.000 claims abstract description 47
- 238000001514 detection method Methods 0.000 claims abstract description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000523 sample Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/0601—Parameters used for exhaust control or diagnosing being estimated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1602—Temperature of exhaust gas apparatus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention provides a kind of exhaust gas post-treatment device flow field uniformity evaluation systems, including after-treatment device and detection device, further include scanning means and data acquisition device；The scanning means includes pedestal, lifting platform is equipped with above the pedestal, the lifting platform is fixedly arranged above horizontally tracting platform, the vertical measuring rod slid along is equipped with above the horizontally tracting platform, the vertical measuring rod is equipped with horizontal measurement bar, and is connected by sliding slot；Further include servo motor, the servo motor drives horizontal measurement bar difference vertically and horizontal motion；The after-treatment device is fixed by stationary fixture level；Detection device is connect by data line with the data acquisition device.A kind of exhaust gas post-treatment device flow field uniformity evaluation system of the present invention can avoid repeating arrangement detection device, can once complete the required measurement all put, and high degree of automation improves measurement efficiency and accuracy rate.
Description
Technical field
The invention belongs to exhaust gas post-treatment device technical fields, more particularly, to a kind of exhaust gas post-treatment device even flow field
Property evaluation system.
Background technology
Now with the fast development of auto industry, automobile is more and more universal as a kind of easily vehicles, so
And more and more automobiles also result in very big ground contamination to environment, the environmental problem that motor vehicle exhaust emission is brought is auto industry
Urgent problem.Exhaust post-treatment apparatus of engine is primarily used to handle or purify toxic and harmful substance in exhaust
Device can effectively reduce discharge of the harmful substance to atmospheric environment, be the current effective measures for solving automobile exhaust pollution, therefore
The performance of exhaust gas post-treatment device plays an important role the performance evaluation of integral automobile, and the temperature of exhaust gas post-treatment device
Uniformity and gas concentration uniformity are to investigate the leading indicator of its performance.
And the measurement to exhaust gas post-treatment device temperature uniformity at present, common mode are on after-treatment device section
Different location inserts temperature sensor, measures difficult arrangement in this way, and measurable temperature spot is limited, and measurement efficiency is low, and market is temporary
Without device and method measured directly.
Invention content
In view of this, the present invention is directed to propose a kind of exhaust gas post-treatment device flow field uniformity evaluation system, is surveyed with improving
Amount efficiency and accuracy rate.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of exhaust gas post-treatment device flow field uniformity evaluation system, including after-treatment device and detection device further include
Scanning means and data acquisition device；The scanning means includes pedestal, is equipped with lifting platform above the pedestal, on the lifting platform
Side is fixed with horizontally tracting platform, and the vertical measuring rod slid along, the vertical measuring rod are equipped with above the horizontally tracting platform
It is equipped with horizontal measurement bar, and is connected by sliding slot, the horizontal measurement bar is vertical with the direction of horizontally tracting platform；Further include watching
Motor is taken, the servo motor drives horizontal measurement bar difference vertically and horizontal motion；The horizontal measurement bar
One end be equipped with fixed seat, stationary fixture is equipped with above the lifting platform of fixed seat side, the after-treatment device passes through solid
Clamp tool is horizontal fixed；The detection device is fixed in fixed seat, the outlet of the probe face after-treatment device of detection device,
Outlet position apart from after-treatment device is adjustable, is 3-7mm, and detection device is acquired by data line and the data
Case connects.
Further, the horizontally tracting platform is connect with vertical measuring rod by gear ＆ rack structure, the horizontally tracting
Platform one end is equipped with rocking handle, and the rocking handle acts on gear ＆ rack structure, to drive vertical measuring rod to be slided along horizontally tracting platform.
Further, the servo motor includes the first servo electricity being respectively arranged on vertical measuring rod and horizontal measurement bar
Machine and the second servo motor, the first servo motor driving horizontal measurement bar are moved along vertical measuring rod radial direction vertical direction,
The second servo motor driving horizontal measurement bar is moved along horizontal measurement bar radial level direction.
Further, the fixed seat includes two identical decks, and the card is taken equipped with card slot；The stationary fixture
Including rectangular fixed frame and locking mechanism, the locking mechanism includes the rotation that check lock lever and control check lock lever move up and down
Handle, the after-treatment device pass vertically through fixed frame, are connect with after-treatment device horizontal through fixed frame, the check lock lever lower end
It touches, and is locked by rotating handles.
Further, there are multiple measurement points according to the division of the step-length of setting on the outlet of the after-treatment device.
Further, hydraulic lift is equipped between the lifting platform and pedestal；Multiple rollings are equipped with below the pedestal
Driving wheel.
Further, the detection device is one kind in temperature sensor, pressure sensor or gas analyzer；It is described
Gas analyzer is NH3 concentration analyzers or NOx concentration analyzer.
Compared with the existing technology, a kind of exhaust gas post-treatment device flow field uniformity evaluation system of the present invention have with
Lower advantage：
A kind of exhaust gas post-treatment device flow field uniformity evaluation system of the present invention, including after-treatment device and detection
Device further includes scanning means and data acquisition device, after-treatment device outlet is divided into according to the step-length of setting several
Measurement point makes the probe of detection device one by one by driving servo motor that can adjust detection device in the position in three directions
It is moved to each measurement point, after stopping specified time, reads the measurement data of the point, and will be adopted by data line and data
Header connects, and data acquisition device obtains the flow distribution evenness of after-treatment device by mathematical computations.It can be kept away using the system
Exempt to repeat to arrange detection device, can once complete the required measurement all put, high degree of automation improves measurement efficiency and standard
True rate.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is an a kind of preferred embodiment of exhaust gas post-treatment device flow field uniformity evaluation system according to the invention
Structural schematic diagram；
Fig. 2 is the schematic diagram of after-treatment device outlet.
Reference sign：
1- pedestals；2- horizontally tracting platforms；3- rocking handles；4- horizontal measurement bars；The vertical measuring rods of 5-；6- fixed seats；7- is lifted
Platform；8- stationary fixtures；9- data acquisition devices.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To express or implicitly include one or more this feature.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of exhaust gas post-treatment device flow field uniformity evaluation system, such as Fig. 1, shown in Fig. 2, a kind of exhaust gas post-treatment device
Flow field uniformity evaluation system, including after-treatment device and detection device further include scanning means and data acquisition device 9；It is described
Scanning means includes pedestal 1, and 1 top of the pedestal is equipped with lifting platform 7, and the lifting platform 7 is fixedly arranged above horizontally tracting platform 2,
2 top of the horizontally tracting platform is equipped with the vertical measuring rod 5 slid along, and the vertical measuring rod 5 is equipped with horizontal measurement bar
4, and connected by sliding slot, the horizontal measurement bar 4 is vertical with the direction of horizontally tracting platform 2；Further include servo motor, it is described to watch
Taking motor drives 4 difference of horizontal measurement bar vertically and horizontal motion；One end of the horizontal measurement bar 4 is equipped with solid
Reservation 6,7 top of lifting platform close to 6 side of fixed seat are equipped with stationary fixture 8, and the after-treatment device passes through 8 water of stationary fixture
It is flat to fix；The detection device is fixed in fixed seat 6, the outlet of the probe face after-treatment device of detection device, after distance
The outlet position of processing unit is adjustable, is 3-7mm, and detection device is connected by data line and the data acquisition device 9
It connects.
The horizontally tracting platform 2 is connect with vertical measuring rod 5 by gear ＆ rack structure, described 2 one end of horizontally tracting platform
Equipped with rocking handle 3, the rocking handle 3 acts on gear ＆ rack structure, to drive vertical measuring rod 5 to be slided along horizontally tracting platform 2.
The servo motor includes being respectively arranged on vertical measuring rod 5 and the first servo motor on horizontal measurement bar 4 and
Two servo motors, the first servo motor driving horizontal measurement bar 4 is moved along the radial vertical direction of vertical measuring rod 5, described
Second servo motor driving horizontal measurement bar 4 is moved along 4 radial level direction of horizontal measurement bar.
The fixed seat 6 includes two identical decks, and the card is taken equipped with card slot；The stationary fixture 8 includes length
Rectangular fixed frame and locking mechanism, the locking mechanism include the rotating handles that check lock lever and control check lock lever move up and down,
The after-treatment device passes vertically through fixed frame, is contacted with after-treatment device horizontal through fixed frame, the check lock lever lower end, and
It is locked by rotating handles.
There are multiple measurement points according to the division of the step-length of setting on the outlet of the after-treatment device.
Hydraulic lift is equipped between the lifting platform 7 and pedestal 1；1 lower section of the pedestal is equipped with multiple scroll wheels.
The detection device is one kind in temperature sensor, pressure sensor or gas analyzer；The gas analysis
Instrument is NH3 concentration analyzers or NOx concentration analyzer.
A kind of operation principle of exhaust gas post-treatment device flow field uniformity evaluation system of the present invention is：
A kind of exhaust gas post-treatment device flow field uniformity evaluation system of the present invention, when use, go out after-treatment device
Mouth section is divided into several measurement points according to the step-length of setting, after-treatment device is placed on the fixed frame of stationary fixture 8, and lead to
Locking mechanism is crossed to be locked；Select detection device in temperature sensor, pressure sensor or gas analyzer as needed
One kind.
Scanning means is adjusted, the height of lifting platform 7 is adjusted, rocking handle 3 is rotated, rocking handle 3 is made to act on gear ＆ rack structure, from
And vertical measuring rod 5 is driven to be slided along horizontally tracting platform 2, after the location determination of vertical measuring rod 5, detection device is placed in fixation
It is fixed on seat 6, make the probe distance after-treatment device outlet 5mm of detection device, detection device by data line with
Data acquisition device connects；
Start servo motor, first servo motor drives horizontal measurement bar 4 along the radial vertical direction fortune of vertical measuring rod 5
Dynamic, the second servo motor driving horizontal measurement bar 4 is moved along 4 radial level direction of horizontal measurement bar, adjusts detection device
Position, so that the probe of detection device is moved to each measurement point one by one, after stopping specified time, read the measurement data of the point
(temperature, speed or gas concentration), and will be connect with data acquisition device by data line, data acquisition device passes through mathematics meter
Calculate the flow distribution evenness for obtaining after-treatment device.It can avoid repeating arrangement detection device using the system, it can be primary complete
At the required measurement all put, high degree of automation improves measurement efficiency and accuracy rate.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of exhaust gas post-treatment device flow field uniformity evaluation system, including after-treatment device and detection device, feature exist
In：Further include scanning means and data acquisition device (9)；
The scanning means includes pedestal (1), and lifting platform (7) is equipped with above the pedestal (1), and lifting platform (7) top is solid
Surely there is horizontally tracting platform (2), the vertical measuring rod (5) slid along, the vertical survey are equipped with above the horizontally tracting platform (2)
Gauge rod (5) is equipped with horizontal measurement bar (4), and is connected by sliding slot, the horizontal measurement bar (4) and horizontally tracting platform (2)
Direction is vertical；Further include servo motor, the servo motor drives horizontal measurement bar (4) difference vertically and horizontal direction
Movement；One end of the horizontal measurement bar (4) is equipped with fixed seat (6), is set above the lifting platform (7) of fixed seat (6) side
There are stationary fixture (8), the after-treatment device horizontal fixed by stationary fixture (8)；
The detection device is fixed in fixed seat (6), the outlet of the probe face after-treatment device of detection device, after distance
The outlet 3-7mm of device is managed, detection device is connect by data line with the data acquisition device (9).
2. a kind of exhaust gas post-treatment device flow field uniformity evaluation system according to claim 1, it is characterised in that：It is described
Horizontally tracting platform (2) is connect with vertical measuring rod (5) by gear ＆ rack structure, and described horizontally tracting platform (2) one end is equipped with and shakes
Handle (3), the rocking handle (3) act on gear ＆ rack structure, to drive vertical measuring rod (5) to be slided along horizontally tracting platform (2).
3. a kind of exhaust gas post-treatment device flow field uniformity evaluation system according to claim 1, it is characterised in that：It is described
Servo motor includes being respectively arranged on vertical measuring rod (5) and the first servo motor on horizontal measurement bar (4) and the second servo electricity
Machine, the first servo motor driving horizontal measurement bar (4) move along the radial vertical direction of vertical measuring rod (5), and described second
Servo motor drives horizontal measurement bar (4) to be moved along horizontal measurement bar (4) radial level direction.
4. a kind of exhaust gas post-treatment device flow field uniformity evaluation system according to claim 1, it is characterised in that：It is described
Fixed seat (6) includes two identical decks, and the card is taken equipped with card slot.
5. a kind of exhaust gas post-treatment device flow field uniformity evaluation system according to claim 1, it is characterised in that：It is described
Stationary fixture (8) includes rectangular fixed frame and locking mechanism, and the locking mechanism includes on check lock lever and control check lock lever
The rotating handles of lower movement, the after-treatment device pass vertically through fixed frame horizontal through fixed frame, the check lock lever lower end, with
After-treatment device contacts, and is locked by rotating handles.
6. a kind of exhaust gas post-treatment device flow field uniformity evaluation system according to claim 1, it is characterised in that：It is described
There are multiple measurement points according to the division of the step-length of setting on the outlet of after-treatment device.
7. a kind of exhaust gas post-treatment device flow field uniformity evaluation system according to claim 1, it is characterised in that：It is described
Hydraulic lift is equipped between lifting platform (7) and pedestal (1).
8. a kind of exhaust gas post-treatment device flow field uniformity evaluation system according to claim 1, it is characterised in that：It is described
Multiple scroll wheels are equipped with below pedestal (1).
9. according to a kind of exhaust gas post-treatment device flow field uniformity evaluation system of claim 1-8 any one of them, feature
It is：The detection device is one kind in temperature sensor, pressure sensor or gas analyzer.
10. a kind of exhaust gas post-treatment device flow field uniformity evaluation system according to claim 9, it is characterised in that：Institute
It is NH3 concentration analyzers or NOx concentration analyzer to state gas analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641795.2A CN108487978A (en) | 2018-06-21 | 2018-06-21 | A kind of exhaust gas post-treatment device flow field uniformity evaluation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641795.2A CN108487978A (en) | 2018-06-21 | 2018-06-21 | A kind of exhaust gas post-treatment device flow field uniformity evaluation system |
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| Publication Number | Publication Date |
|---|---|
| CN108487978A true CN108487978A (en) | 2018-09-04 |
Family
ID=63343202
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|---|---|---|---|
| CN201810641795.2A Pending CN108487978A (en) | 2018-06-21 | 2018-06-21 | A kind of exhaust gas post-treatment device flow field uniformity evaluation system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT502911A1 (en) * | 2005-06-09 | 2007-06-15 | Avl List Gmbh | Reactive gas portion detecting method for internal combustion engine, involves assigning a temperature peak time point to the time of origin of a characteristic cyclical motor characteristic and attributing it to a specific engine cylinder |
| US20150241400A1 (en) * | 2012-10-23 | 2015-08-27 | Cummins Emission Solutions Inc. | Uniformity index performance evaluation in an scr aftertreatement system |
| CN206300936U (en) * | 2016-12-13 | 2017-07-04 | 上海华梅自控系统有限公司 | A kind of engine exhaust emission Measurement and Control System |
| CN208534589U (en) * | 2018-06-21 | 2019-02-22 | 天津索克汽车试验有限公司 | A kind of exhaust gas post-treatment device flow field uniformity evaluation system |
-
2018
- 2018-06-21 CN CN201810641795.2A patent/CN108487978A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT502911A1 (en) * | 2005-06-09 | 2007-06-15 | Avl List Gmbh | Reactive gas portion detecting method for internal combustion engine, involves assigning a temperature peak time point to the time of origin of a characteristic cyclical motor characteristic and attributing it to a specific engine cylinder |
| US20150241400A1 (en) * | 2012-10-23 | 2015-08-27 | Cummins Emission Solutions Inc. | Uniformity index performance evaluation in an scr aftertreatement system |
| CN206300936U (en) * | 2016-12-13 | 2017-07-04 | 上海华梅自控系统有限公司 | A kind of engine exhaust emission Measurement and Control System |
| CN208534589U (en) * | 2018-06-21 | 2019-02-22 | 天津索克汽车试验有限公司 | A kind of exhaust gas post-treatment device flow field uniformity evaluation system |
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