CN206411004U - A kind of vehicle emission component content on-line detector - Google Patents
A kind of vehicle emission component content on-line detector Download PDFInfo
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- CN206411004U CN206411004U CN201621444479.9U CN201621444479U CN206411004U CN 206411004 U CN206411004 U CN 206411004U CN 201621444479 U CN201621444479 U CN 201621444479U CN 206411004 U CN206411004 U CN 206411004U
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- photosensitive plate
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- emission component
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Abstract
A kind of vehicle emission component content on-line detector belongs to automobile exhaust gas checking apparatus technical field, including framework, processor, optical detection apparatus, drainage rack, water conservancy diversion frame, air-introduced machine and power supply.The optical detection apparatus includes linear light source, limit light gain, lens-ring, prism rings, annular seal space and photosensitive plate.Linear light source reaches lens-ring, through fluid measured to be checked, into prism rings, incided after prism enhanced processing in photosensitive plate by limit light gain in the utility model.Because vehicle emission component is more, the ray refractive index of every kind of composition is different, outlet region can be presented in every kind of gas componant on photosensitive plate, position of every kind of automobile exhaust gas in photosensitive plate can have been demarcated in advance on photosensitive plate, calculated by luminous intensity, you can obtain every kind of composition in Gas From Automobile Exhaust body composition and content.The utility model principle is simple, and it is easy to realize, sensitivity is high, and navigability is strong, and the composition and content of gas can be detected in real time.
Description
Technical field
The utility model belongs to automobile exhaust gas checking apparatus technical field, especially relates to a kind of vehicle emission component and contains
Measure on-line detector.
Background technology
Vehicle exhaust monitoring purpose is exactly to obtain each vehicle emission component portion.Researcher examines vehicle exhaust
Survey method is divided into two kinds, and one kind is on-line monitoring, and one kind is non-on-line monitoring.At present, prevalent means have following several：First, base
Based on sensor measurement composition, but very big inconvenience so is brought to Multiple components measurement in vehicle exhaust, because this is meaned
Either increase sensor sense channel, or the quantity of increase sensor；2nd, by spectral principle, optics and image are carried out
The method of processing is detected, it is necessary to employ high-precision calculating or emulator, improves detection device expense；3rd, no
Detection completely, i.e., only need the material of detection in detection vehicle exhaust, using detected material qualitative attribution, carry out chemistry, physics
Processing, is changed into data signal there is provided detection data, the method imperfection does not have the mesh for detecting all vehicle emission components
's；4th, vehicle exhaust sample is reclaimed, using physics, chemically treated method, obtains accurate testing result, this side
Method numerical value is accurate, but does not reach the purpose detected in real time.
Therefore being needed badly among prior art wants a kind of new technical scheme to solve this problem.
Utility model content
Technical problem to be solved in the utility model is：A kind of vehicle emission component content on-line detector is provided to be used for
Solving sensor measurement in existing vehicle emission component detection means needs increase sensor sense channel or increase sensing
The quantity of device；Need to employ high-precision calculating or emulator using spectral principle detection；Only needed in detection vehicle exhaust
The material to be detected detection data imperfection；Reclaim vehicle exhaust sample and carry out detection and do not reach the technologies such as the purpose that detects in real time
Problem.
A kind of vehicle emission component content on-line detector, including framework, processor, optical detection apparatus, drainage rack, lead
Frame, air-introduced machine and power supply are flowed, one end of the framework is air inlet, and the other end of framework is air outlet, and the inside of framework is set
There is narrow flow road, the one end in narrow flow road is connected with air inlet, the other end in narrow flow road is adjacent with water conservancy diversion frame and narrow flow road and water conservancy diversion
The gap that vehicle exhaust passes through is provided between frame；The water conservancy diversion frame is fixedly connected by drainage rack with framework；The air-introduced machine
It is fixedly mounted on the air outlet side of framework；
The optical detection apparatus includes linear light source, limit light gain, lens-ring, prism rings, annular seal space and photosensitive plate；
The linear light source is fixedly mounted on the inside of drainage rack, and the light that linear light source is launched is radiated at by limiting light gain
On mirror ring；Described outer surface is coated with anti-reflection film, and the beam projecting face of lens-ring is corresponding with the plane of light incidence of prism rings to be arranged,
The gap that vehicle exhaust passes through is provided between the beam projecting face of lens-ring and the plane of light incidence of prism rings；The prism rings
Beam projecting face it is corresponding with photosensitive plate arrangement；The photosensitive plate is connected with the external stability in narrow flow road；The annular seal space difference
It is fixedly connected with the beam projecting face of prism rings and photosensitive plate, forms the annular seal space of light transmission；
The power supply is connected with processor, linear light source and air-introduced machine respectively；The processor is connected with photosensitive plate.
The cross section of the lens-ring is cirque structure, and the longitudinal section of lens-ring is rectangle structure.
The cross section of the prism rings is cirque structure, and the longitudinal section of prism rings is triangular structure.
By above-mentioned design, the utility model can bring following beneficial effect：
Linear light source reaches lens-ring, through fluid measured to be checked, into prism by limit light gain in the utility model
In ring, incided after prism enhanced processing in photosensitive plate.Because vehicle emission component is more, the light folding of every kind of composition
Penetrate rate different, outlet region can be presented on photosensitive plate, every kind of vapour can have been demarcated in advance on photosensitive plate for every kind of gas componant
Position of the tail gas gas in photosensitive plate, is calculated by luminous intensity, you can obtain every kind of composition Gas From Automobile Exhaust body into
Divide and content.
The utility model principle is simple, and it is easy to realize, sensitivity is high, and navigability is strong, can detect in real time, can be compatible
All kinds gas componant is detected.
Brief description of the drawings
The utility model is further described below in conjunction with the drawings and specific embodiments：
Fig. 1 is a kind of structural representation of vehicle emission component content on-line detector of the utility model.
Fig. 2 is a kind of cross section structure diagram of vehicle emission component content on-line detector of the utility model.
Fig. 3 is gas flow schematic diagram in a kind of vehicle emission component content on-line detector of the utility model.
Fig. 4 is the structural representation of optical detection apparatus in a kind of vehicle emission component content on-line detector of the utility model
Figure.
Fig. 5 is the optical detection of optical detection apparatus in a kind of vehicle emission component content on-line detector of the utility model
Schematic diagram.
Fig. 6 is the photosensitive plate mark of optical detection apparatus in a kind of vehicle emission component content on-line detector of the utility model
Determine schematic diagram.
1- frameworks in figure, 2- processors, 3- optical detection apparatus, 4- drainage racks, 5- water conservancy diversion frame, 6- air-introduced machines, 7- power supplys,
Air inlet -101,102- narrow flows road, 103- air outlets, 104- runners mouthful, 105- sections mouthful I, 106- delay chamber, 107- sections mouthful
IIth, 108- sections mouthful III, 109- sections mouthful IV, 401- linear light sources, 402- limit light gain, 403- lens-rings, 404- prisms
Ring, 405- annular seal spaces, 406- photosensitive plates.
Embodiment
As illustrated, a kind of vehicle emission component content on-line detector, including framework 1, processor 2, optical detection dress
3, drainage rack 4, water conservancy diversion frame 5, air-introduced machine 6 and power supply 7 are put, one end of the framework 1 is air inlet 101, and the other end of framework 1 is
Air outlet 103, framework 1 is internally provided with narrow flow road 102, and the one end in narrow flow road 102 is connected with air inlet 101, narrow flow road 102
The other end and water conservancy diversion frame 5 it is adjacent and the gap that vehicle exhaust passes through is provided between narrow flow road 102 and water conservancy diversion frame 5；It is described
Water conservancy diversion frame 5 is fixedly connected by drainage rack 4 with framework 1；The air-introduced machine 6 is fixedly mounted on the side of air outlet 103 of framework 1；
The optical detection apparatus 3 includes linear light source 401, limit light gain 402, lens-ring 403, prism rings 404, close
Seal chamber 405 and photosensitive plate 406；The linear light source 401 is fixedly mounted on the inside of drainage rack 4, what linear light source 401 was launched
Light is radiated on lens-ring 403 by limiting light gain 402；The outer surface of the lens-ring 403 is coated with anti-reflection film, lens-ring
403 beam projecting face arrangement corresponding with the plane of light incidence of prism rings 404, the beam projecting face of lens-ring 403 and prism rings
The gap that vehicle exhaust passes through is provided between 404 plane of light incidence, the gap is 2mm；The light of the prism rings 404 goes out
Penetrate face arrangement corresponding with photosensitive plate 406；The photosensitive plate 406 is connected with the external stability in narrow flow road 102；The annular seal space 405
It is fixedly connected respectively with the beam projecting face of prism rings 404 and photosensitive plate 406, forms the annular seal space 405 of light transmission；
The power supply 7 is connected with processor 2, linear light source 401 and air-introduced machine 6 respectively；The processor 2 and photosensitive plate
406 connections.
The cross section of the lens-ring 403 is cirque structure, and the longitudinal section of lens-ring 403 is rectangle structure.
The cross section of the prism rings 404 is cirque structure, and the longitudinal section of prism rings 404 is triangular structure, mainly
Light angle amplification is played, the single side size of the longitudinal section of prism is more than 2mm.
First, instrument system explanation is detected：
The detector can be in on-line checking vehicle exhaust composition, and its determine the part of the composition in total gas displacement
Volume.System includes framework 1, processor 2, optical detection apparatus 3, drainage rack 4, water conservancy diversion frame 5, air-introduced machine 6 and power supply 7 etc., such as Fig. 1
With shown in Fig. 2.
2nd, vehicle exhaust flow process is described：
As shown in figure 3, vehicle exhaust enters in a kind of described vehicle emission component content on-line detector, by air inlet
101 enter, and enter air stream enter runner mouthful 104 by narrow flow road 102, carry out deflecting by water conservancy diversion frame 5 afterwards, and raise speed, and then improve fluid
The distribution of middle heterogeneity, is entered in slow chamber 106, subsequent fluid is accelerated by section mouthful II 107 by section mouthful I 105, passed through
Optical detection apparatus is crossed, section mouthful III 108 is flowed through, eventually passes air-introduced machine 6 and raise speed, detector is discharged by section mouthful IV 109.
3rd, speed is described：
Gas flow Q is constant, because gas flow Q=gases flow through fluid velocity V at area of section A* sections, so
AaVa=AbVb=AcVc=AdVd=AeVe, wherein Aa is that the gas at air inlet 101 flows through area of section, and Ab is runner mouthful 104
The gas at place flows through area of section, and Ac is that the gas at section mouthful I 105 flows through area of section, and Ad is the gas at section mouthful II 107
Body flows through area of section, and Ae is that the gas at section mouthful IV 109 flows through area of section, and Va is to be flowed at the section at air inlet 101
Body speed, Vb is fluid velocity at the section at runner mouthful 104, and Vc is fluid velocity at the section at section mouthful I 105, and Vd is
Fluid velocity at section at section mouthful II 107, Ve is fluid velocity at the section at section mouthful IV 109.And Aa＞ Ab＞
Ae＞ Ac＞ Ad, it is possible to the length velocity relation for obtaining different cross section mouthful position is Va＜ Vb＜ Ve＜ Vc＜ Vd, air-introduced machine 6 will cut
The speed of IV 109 positions of face mouthful brings up to maximum.The area in each section is inversely proportional with fluid velocity in the present invention, in order to not make
Steam is condensed, therefore speed-raising is needed before steam is detected, that is, reduces area of section, and drop is necessary after detecting and completing
Speed, therefore increasing section area again, in order to prevent vehicle exhaust from accumulating, have finally carried out once raising speed again, have been done to shorten
Work(distance, therefore air-introduced machine 6 is employed, strengthen the mode of convection current, improve fluid velocity.
4th, detection process is described：
Detection process is completed in optical detection apparatus 3, as shown in Figures 4 and 5, and linear light source 401 is by limit light waist
Groove 402, reaches lens-ring 403, through fluid measured to be checked, into prism rings 404, incide afterwards in photosensitive plate 406 because
Vehicle emission component is more, and the ray refractive index of every kind of composition is different, and the utility model is entered by providing refraction angle incident ray
Enter lens-ring 403, such as different fluid gas, inevitable light is reflected, into prism rings 404, at prism amplification
Reason, into photosensitive plate 406, due to the good every kind of automobile exhaust gas position in photosensitive plate 406 of the demarcation in advance of photosensitive plate 406,
Therefore pass through processor 2 and carry out luminous intensity calculating, you can every kind of composition is obtained in Gas From Automobile Exhaust body composition and content.
5th, photosensitive plate is demarcated：
In optical detection apparatus 3, the monophasic fluid of offer different fluid composition, including carbon dioxide respectively, vapor,
Carbon, carbon monoxide, nitric oxide, nitrogen dioxide, sulfur dioxide etc., at this moment because light is linear light source 401, therefore every kind of gas
Outlet region can be presented in composition on photosensitive plate 406, as shown in fig. 6, In in demarcation, Fig. 6 at this moment can be made in processor 2
Characterize position of every kind of gas componant in photosensitive plate 406.
6th, automobile exhaust gas composition is calculated：
Setting the light intensity that every kind of gas componant is collected into photosensitive plate 406 is respectively, In1, In2 ..., Ini ...,
InN, then the content of i-th of gas componant is Ini/ (In1+In2+...+InN), can similarly obtain containing for every kind of gas componant
Amount.
Claims (3)
1. a kind of vehicle emission component content on-line detector, it is characterized in that：Including framework (1), processor (2), optical detection
Device (3), drainage rack (4), water conservancy diversion frame (5), air-introduced machine (6) and power supply (7), one end of the framework (1) is air inlet
(101), the other end of framework (1) is air outlet (103), and framework (1) is internally provided with narrow flow road (102), narrow flow road (102)
One end be connected with air inlet (101), the other end of narrow flow road (102) is adjacent with water conservancy diversion frame (5) and narrow flow road (102) are with leading
The gap that vehicle exhaust passes through is provided between stream frame (5)；The water conservancy diversion frame (5) connects by the way that drainage rack (4) and framework (1) are fixed
Connect；The air-introduced machine (6) is fixedly mounted on air outlet (103) side of framework (1)；
The optical detection apparatus (3) includes linear light source (401), limit light gain (402), lens-ring (403), prism rings
(404), annular seal space (405) and photosensitive plate (406)；The linear light source (401) is fixedly mounted on the inside of drainage rack (4), line
The light that shape light source (401) is launched is radiated on lens-ring (403) by limiting light gain (402)；The lens-ring (403)
Outer surface be coated with anti-reflection film, the beam projecting face arrangement corresponding with the plane of light incidence of prism rings (404) of lens-ring (403),
The gap that vehicle exhaust passes through is provided between the beam projecting face of lens-ring (403) and the plane of light incidence of prism rings (404)；
The beam projecting face arrangement corresponding with photosensitive plate (406) of the prism rings (404)；The photosensitive plate (406) and narrow flow road (102)
External stability connection；The annular seal space (405) is solid with the beam projecting face of prism rings (404) and photosensitive plate (406) respectively
Fixed connection, forms the annular seal space of light transmission；
The power supply (7) is connected with processor (2), linear light source (401) and air-introduced machine (6) respectively；The processor (2) with
Photosensitive plate (406) is connected.
2. a kind of vehicle emission component content on-line detector according to claim 1, it is characterized in that：The lens-ring
(403) cross section is cirque structure, and the longitudinal section of lens-ring (403) is rectangle structure.
3. a kind of vehicle emission component content on-line detector according to claim 1, it is characterized in that：The prism rings
(404) cross section is cirque structure, and the longitudinal section of prism rings (404) is triangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444479.9U CN206411004U (en) | 2016-12-27 | 2016-12-27 | A kind of vehicle emission component content on-line detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444479.9U CN206411004U (en) | 2016-12-27 | 2016-12-27 | A kind of vehicle emission component content on-line detector |
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| Publication Number | Publication Date |
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| CN206411004U true CN206411004U (en) | 2017-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621444479.9U Expired - Fee Related CN206411004U (en) | 2016-12-27 | 2016-12-27 | A kind of vehicle emission component content on-line detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645025A (en) * | 2016-12-27 | 2017-05-10 | 吉林大学 | Online detector for automobile exhaust component content |
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2016
- 2016-12-27 CN CN201621444479.9U patent/CN206411004U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645025A (en) * | 2016-12-27 | 2017-05-10 | 吉林大学 | Online detector for automobile exhaust component content |
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Granted publication date: 20170815 Termination date: 20201227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |