CN205483099U - Motor vehicle exhaust flow measuring device - Google Patents
Motor vehicle exhaust flow measuring device Download PDFInfo
- Publication number
- CN205483099U CN205483099U CN201620077189.9U CN201620077189U CN205483099U CN 205483099 U CN205483099 U CN 205483099U CN 201620077189 U CN201620077189 U CN 201620077189U CN 205483099 U CN205483099 U CN 205483099U
- Authority
- CN
- China
- Prior art keywords
- subsonic speed
- detection case
- differential pressure
- speed venturi
- blower fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a motor vehicle exhaust flow measuring device, gather mouth, tail gas measured module and fan including motor vehicle exhaust, tail gas gather mouthful be tubaeform and slidable ground fixed mounting on the carrier bar, tail gas measured module includes the detection case, detection case bottom is equipped with and is provided with signal acquisition and processing module in first universal gyro wheel and its, signal acquisition is connected with differential pressure flow meter with the processing module electricity, differential pressure flow meter adopts subsonic speed venturi meter, subsonic speed venturi meter passes through leather hose intercommunication fluid pipeline, the fan is fixed in and bears on the frame, the bottom of bearing the frame is equipped with the universal gyro wheel of second. The utility model discloses convenient to use chooses for use subsonic speed venturi meter (SAO) to realize the precision measurement to motor vehicle exhaust volume flow rate.
Description
Technical field
This utility model relates to fluid measuring apparatus technical field, especially relates to a kind of automobile exhausting stream
Measuring device.
Background technology
Differential flow detection method is a kind of commonly used method of field of flow detection, this method be based on
Bernoulli principle and set up, by arranging artificial flow impedance structure (such as orifice plate, nozzle in the duct
Or Venturi tube) make fluid produce static difference pressure between the upstream and downstream of barrier structure, this differential pressure becomes ratio with flow velocity
Example relation, then measured value and fluid behaviour environmental data according to static difference pressure can draw fluid in pipeline
Volume flow.Along with economic fast development and the raising of people's living standard, the most motor-driven
Car navigates within road, and the exhaust emissions of motor vehicles becomes a key factor of atmospheric pollution, therefore
Need the exhaust emissions amount of strict monitoring upper road motor vehicles in time it to be keeped in repair.
Summary of the invention
Main purpose of the present utility model is can be to motor vehicles based on differential flow detection method offer one
The measurement apparatus that exhaust emissions amount carries out accurately, is convenient for measuring.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of automobile exhausting
Flow measurement device, including: motor-vehicle tail-gas acquisition port, emission measuring module and blower fan, described collection
Mouth, emission measuring module are connected by fluid line with blower fan.Described tail gas acquisition port is tubaeform,
Described tail gas acquisition port is fixedly installed on carrier bar slidably.Described emission measuring module includes detection
Case, be provided with bottom described detection case the first universal rolling wheel and its in be provided with Signal acquiring and processing module,
Described Signal acquiring and processing module is electrically connected with differential pressure flowmeter, and described differential pressure flowmeter uses subsonic speed
Venturi meter (SAO), described subsonic speed Venturi meter (SAO) is by leather hose connection stream
Body pipeline.Described blower fan is fixed on carrier, and the bottom of described carrier is provided with the second universal rolling wheel.
Further, described subsonic speed Venturi meter (SAO) includes subsonic speed Venturi tube, absolute pressure
Sensor, differential pressure pick-up and temperature sensor, described absolute pressure sensor is arranged at the subsonics in detection case
On the fluid line of speed Venturi tube upstream, the subsonic speed literary composition that described differential pressure pick-up is arranged in detection case
Venturi both sides, described temperature sensor is placed in outside detection case on the fluid line of blower fan.
Further, the bottom of described carrier bar is provided with the cross bearing of level.
This utility model has the advantage that and provides the benefit that: this utility model is easy to use, selects subsonics
Speed Venturi meter (SAO) achieves the accurate measurement to automobile exhausting volume flow.
Accompanying drawing explanation
Fig. 1 is the structural representation of automobile exhausting flow measurement device.
In figure: 1 is acquisition port, 2 is emission measuring module, and 201 is subsonic speed Venturi tube, and 202 are
Absolute pressure sensor, 203 is differential pressure pick-up, and 204 is temperature sensor, and 21 is detection case, and 22 is the
One universal rolling wheel, 23 is Signal acquiring and processing module, and 3 is blower fan, and 31 is carrier, and 32 is
Two universal rolling wheels, 4 is fluid line, and 5 is carrier bar.
Detailed description of the invention
Below in conjunction with the accompanying drawings specific embodiment of the utility model is elaborated.
As it can be seen, this utility model provides a kind of automobile exhausting flow measurement device, including: motor-driven
Tail gas acquisition port 1, emission measuring module 2 and blower fan 3, described acquisition port 1, emission measuring module 2
Being connected by fluid line 4 with blower fan 3, described tail gas acquisition port 1 is tubaeform and solid slidably
Dingan County is loaded on carrier bar 5.Described emission measuring module 2 includes detection case 21, bottom described detection case
Be provided with the first universal rolling wheel 22 and its in be provided with Signal acquiring and processing module 23, described signals collecting
Being electrically connected with differential pressure flowmeter with processing module 23, described differential pressure flowmeter uses subsonic speed venturi stream
Gauge (SAO), described subsonic speed Venturi meter (SAO) connects fluid line 4 by leather hose.
Described blower fan 3 is fixed on carrier 31, and the bottom of described carrier 31 is provided with the second universal rolling wheel 32.
Specifically, described subsonic speed Venturi meter (SAO) include subsonic speed Venturi tube 201,
Absolute pressure sensor 202, differential pressure pick-up 203 and temperature sensor 204, described absolute pressure sensor 202
On the fluid line 4 of subsonic speed Venturi tube 201 upstream being arranged in detection case 21, described differential pressure
Subsonic speed Venturi tube 201 both sides that sensor 203 is arranged in detection case 21, described temperature sensing
Device 204 is placed in outside detection case 21 on the fluid line 4 of blower fan 3.The bottom of described carrier bar 5
It is provided with the cross bearing of level.
When with described automobile exhausting flow measurement device, the exhaust gas volumes discharge capacity of motor vehicles being surveyed
During amount, promote described automobile exhausting flow measurement device to specifying position, adjust acquisition port 1 to suitable
Highly, opening blower fan 3, motor-vehicle tail-gas enters fluid line 4 by subsonic speed literary composition mound from acquisition port 1
In effusion meter (SAO) thus measured.This device mobility is strong, selects subsonic speed venturi flow
Automobile exhausting volume flow can accurately be measured by meter (SAO), has easy to use, measurement essence
True advantage.
Above an embodiment of the present utility model is described in detail, but described content has been only this reality
With novel preferred embodiment, it is impossible to be considered for limiting practical range of the present utility model.Fan Yiben
Impartial change that utility model application scope is made and improvement etc., all should still belong to of the present utility model specially
Within profit covering scope.
Claims (3)
1. an automobile exhausting flow measurement device, including motor-vehicle tail-gas acquisition port (1), tail gas
Measurement module (2) and blower fan (3), described acquisition port (1), emission measuring module (2) and blower fan
(3) it is connected by fluid line (4), it is characterised in that: described acquisition port (1) is tubaeform
And be fixedly installed in slidably on carrier bar (5)；
Described emission measuring module (2) includes detection case (21), is provided with first bottom described detection case
Universal rolling wheel (22) and its in be provided with Signal acquiring and processing module (23), described signals collecting with
Processing module (23) is electrically connected with differential pressure flowmeter, and described differential pressure flowmeter uses subsonic speed venturi stream
Gauge (SAO), described subsonic speed Venturi meter (SAO) is by leather hose connection fluid line (4)；
Described blower fan (3) is fixed on carrier (31), and the bottom of described carrier (31) is provided with
Second universal rolling wheel (32).
Automobile exhausting flow measurement device the most according to claim 1, it is characterised in that: institute
State subsonic speed Venturi meter (SAO) and include subsonic speed Venturi tube (201), absolute pressure sensor
(202), differential pressure pick-up (203) and temperature sensor (204), described absolute pressure sensor (202)
On the fluid line (4) of subsonic speed Venturi tube (201) upstream being arranged in detection case (21),
Described differential pressure pick-up (203) is arranged at the subsonic speed Venturi tube (201) two in detection case (21)
Side, described temperature sensor (204) is placed in detection case (21) outward close to the fluid line of blower fan (3)
(4) on.
Automobile exhausting flow measurement device the most according to claim 1, it is characterised in that: institute
The bottom stating carrier bar (5) is provided with the cross bearing of level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620077189.9U CN205483099U (en) | 2016-01-27 | 2016-01-27 | Motor vehicle exhaust flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620077189.9U CN205483099U (en) | 2016-01-27 | 2016-01-27 | Motor vehicle exhaust flow measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205483099U true CN205483099U (en) | 2016-08-17 |
Family
ID=56619619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620077189.9U Expired - Fee Related CN205483099U (en) | 2016-01-27 | 2016-01-27 | Motor vehicle exhaust flow measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205483099U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111999451A (en) * | 2020-10-30 | 2020-11-27 | 成都成保发展股份有限公司 | Automobile exhaust anti-cheating detection system and method based on attitude sensor |
| CN112945327A (en) * | 2021-05-13 | 2021-06-11 | 西安多普多信息科技有限公司 | Mass flow detection method, device and system |
| CN113466413A (en) * | 2021-07-05 | 2021-10-01 | 郑州水伟环境科技有限公司 | Fast moving unpowered air draft air chamber for air quality detection |
-
2016
- 2016-01-27 CN CN201620077189.9U patent/CN205483099U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111999451A (en) * | 2020-10-30 | 2020-11-27 | 成都成保发展股份有限公司 | Automobile exhaust anti-cheating detection system and method based on attitude sensor |
| CN111999451B (en) * | 2020-10-30 | 2021-01-05 | 成都成保发展股份有限公司 | Automobile exhaust anti-cheating detection system and method based on attitude sensor |
| CN112945327A (en) * | 2021-05-13 | 2021-06-11 | 西安多普多信息科技有限公司 | Mass flow detection method, device and system |
| CN113466413A (en) * | 2021-07-05 | 2021-10-01 | 郑州水伟环境科技有限公司 | Fast moving unpowered air draft air chamber for air quality detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170127 |