CN105319120B - The NO reforming units of Vehicular exhaust detection - Google Patents
The NO reforming units of Vehicular exhaust detection Download PDFInfo
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- CN105319120B CN105319120B CN201510766902.0A CN201510766902A CN105319120B CN 105319120 B CN105319120 B CN 105319120B CN 201510766902 A CN201510766902 A CN 201510766902A CN 105319120 B CN105319120 B CN 105319120B
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- reative cell
- end cap
- preheating
- cylinder
- gas outlet
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
Abstract
The present invention relates to Vehicular exhaust detection devices.The NO reforming units of Vehicular exhaust detection, the device includes preheating cylinder, lagging casing, reative cell and end cap, preheating cylinder is arranged in lagging casing, and the side wrap for preheating cylinder is provided with heat preservation cotton material, and both ends are set is equipped with heat insulating mattress and the heat-insulated setting of lagging casing respectively；One end set of preheating cylinder has air inlet and gas outlet, air inlet is connected with preheating ventilation air flue, preheating inner barrel also sets up installation mesoporous, reative cell is mounted in installation mesoporous, reducing catalyst has been filled in reative cell, the gas outlet of the venthole connection preheating cylinder of reative cell, the gas outlet of the air admission hole connection preheating ventilation air flue of reative cell；End cap is dismountable to be arranged in end cap installing hole, and the outer end of reative cell is accommodated in end cap, and end cap completely encloses the outer end of reative cell.Nitrogen dioxide can be converted into nitric oxide by the device, realized the synchronism of detection, reduced detection time, reduce testing cost.
Description
Technical field
The present invention relates to Vehicular exhaust detection devices.
Background introduction
Discharging pollutants for diesel vehicle causes very big harm to the health and environment of the mankind, and countries in the world are all formulated increasingly
Stringent emission regulation limits the level that discharges pollutants of diesel engine.It is dense currently for particulate matter in emission of diesel engine pollutant
The detection of degree has corresponding laws and regulations, play the role of to the control of discharge it is good, but according to specialty analysis, diesel vehicle row
The content for putting nitrogen oxides in object also should not be underestimated, and for nitrogen oxides to mainly damaging respiratory tract in terms of health, initiation is uncomfortable in chest, exhales
Inhale poverty-stricken, cough etc.；Water body, soil and air in environment is caused seriously to pollute.Therefore, also will to the control of nitrogen oxides
Into the important link for protecting our human bodies and environment, following priority control object will be become.And the nitrogen oxygen of emission of diesel engine
Exhausted large scale is accounted in compound is nitric oxide and nitrogen dioxide, therefore, will be included in priority control object.
At present, nitric oxide can be detected by not being divided infrared method and technology has been widely applied to reality
In, though the detection of nitrogen dioxide there are all multimodes, consider synchronism, minimized, cost the reasonability of time of detection
Etc. factors, current existing mode is not optimal selection.
Invention content
To solve the above-mentioned problems, the present invention is the NO reforming units of Vehicular exhaust detection, which can be by titanium dioxide
Nitrogen is converted into nitric oxide, realizes the synchronism of detection, reduces detection time, reduces testing cost.
In order to realize above-mentioned purpose, present invention employs following technical solutions：
Vehicular exhaust detection NO reforming units, the device include preheating cylinder, lagging casing, reative cell, end cap and and
Heating unit, the preheating cylinder are arranged in lagging casing, and the heating unit preheats cylinder for heating preheating cylinder
The side wrap of body is provided with heat preservation cotton material, and both ends are set is equipped with heat insulating mattress and the heat-insulated setting of lagging casing respectively；Preheat cylinder
An end set have an air inlet and gas outlet, air inlet is connected with preheating ventilation air flue, and preheating ventilation air flue is by pre-
One end of hot cylinder extends to the other end；The preheating inner barrel also sets up installation mesoporous, installs one end connection of mesoporous
The gas outlet of cylinder is preheated, the other end is end cap installing hole, and the reative cell is mounted in installation mesoporous, in reative cell
Reducing catalyst is filled with, the gas outlet of the venthole connection preheating cylinder of reative cell, the air admission hole connection of reative cell is in advance
The gas outlet of heat ventilation air flue；The end cap is dismountable to be arranged in end cap installing hole, the outer end of the reative cell
It is accommodated in end cap, end cap completely encloses the outer end of reative cell.
As a further improvement, the preheating cylinder is made of housing and core, core is arranged in housing, preheats cylinder
The air inlet of body, gas outlet are arranged on core, the lateral surface of core are provided with helicla flute, helicla flute forms the preheating
Ventilation air flue, and radially setting connection air flue, connection air flue connect the air admission hole of preheating ventilation air flue and reative cell in core.If
It puts helicla flute and improves the efficiency of heating surface, while further ensure temperature uniformity of the gas stream through process.
As a further improvement, the end cap is arranged on by being threaded to be screwed in end cap installing hole.Certain end cap
Other dismantled and assembled modes such as clamping can also be used.
As a further improvement, the inside of the end cap is sealing, middle part is provided with screw thread, and outside is rotating portion,
The end set of sealing has pressure ring, and the first sealing ring, the first sealing ring sealing pressure are provided between pressure ring and end cap installing hole
Ring, end cap installing hole and reative cell lateral wall are provided with stomata, stomata connection preheating ventilation air flue in the middle part of sliding channel of sealing
Gas outlet and reative cell air admission hole, be provided with annular groove on the sealing on the outside of stomata, it is close to be provided with second on annular groove
The inner ring of seal, the second sealing ring sealing sealing and end cap installing hole.
As a further improvement, the reative cell is cylindrical tube shape, the air admission hole and venthole of reative cell are set respectively
At the both ends of reative cell, reducing catalyst is filled with inside reative cell, is distinguished in the air admission hole and outlet nose end of reative cell
It is provided with mesh sheet and hole baffle ring.
As a further improvement, the device further includes out air cooling device, go out going out for air cooling device connection preheating cylinder
Gas port.
As a further improvement, going out air cooling device includes U-tube, tube socket, pressing plate and gas nozzle, the tube socket is arranged on
U-tube is fixed on tube socket by lagging casing top board, and two gas nozzles are separately mounted to U-tube both ends, one of gas
For mouth for connecting the gas outlet of preheating cylinder, another gas nozzle is used for connecting detection analytical equipment.U-tube can be according to space
And cooling degree selection other types, such as helix tube.
As a further improvement, the air inlet of preheating cylinder and gas outlet are respectively arranged with gas nozzle.
As a further improvement, the heating unit is heating rod, and in addition temperature measuring device is set, heating rod and thermometric
Device is plugged in preheating cylinder.
The present invention has the characteristics that following as a result of above-mentioned technical solution：
1st, reforming unit is mountable to as a component on the wall chamber or bottom plate of preprocessing module；
2nd, reaction efficiency is improved by the way of preheated gas；
3rd, the pre-add passage of heat is arranged on heavy wall cavity, ensure that temperature uniformity of the gas stream through process；
4th, heating temperature is set as 230 DEG C, and transformation efficiency is reasonable and operability is high；
5th, reative cell plug is convenient, and it is easy to operate to replace reducing catalyst.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structure diagram for preheating cylinder.
Fig. 3 is the structure diagram for air cooling device.
Fig. 4 is the structure diagram of end cap.
Specific embodiment
The specific embodiment of the present invention is made a detailed explanation below in conjunction with the accompanying drawings.
The NO reforming units of Vehicular exhaust detection as shown in Figure 1, Figure 2, Figure 3 shows, the device include preheating cylinder 3, heat preservation
Shell 1, reative cell 4, end cap 5, heating rod 6, temperature measuring device 7 and go out air cooling device 8.The preheating cylinder 3 is arranged on guarantor
In warm shell 1, heating rod 6 and temperature measuring device 7 are plugged in preheating cylinder 3.The side wrap of preheating cylinder 3 is provided with heat preservation
Cotton material 2, both ends are set is equipped with heat insulating mattress 11 and 1 heat-insulated setting of lagging casing respectively.
As shown in Figure 1 and Figure 2, the preheating cylinder 3 is made of housing 31 and core 32, and core 32 is arranged on housing 31
Interior, the air inlet 9 of setting preheating cylinder 3, gas outlet 10, the air inlet 9 and gas outlet 10 for preheating cylinder 3 are distinguished on core 32
It is provided with gas nozzle 12.The lateral surface of core 32 is provided with helicla flute 33, helicla flute 33 is extended to separately by one end of preheating cylinder 3
One end, helicla flute 33 forms preheating ventilation air flue, and radially sets connection air flue 34, the connection connection preheating of air flue 34 in core 32
Ventilation air flue.Installation mesoporous 30 is also set up inside the preheating cylinder 3, one end connection preheating cylinder 3 of installation mesoporous 30
Gas outlet 10, the other end are end cap installing hole 35.The reative cell 4 is mounted in installation mesoporous 30, and reative cell 4 is circle
Cylindrical, the air admission hole 41 and venthole 42 of reative cell 4 are separately positioned on the both ends of reative cell 4, fill and set inside reative cell 4
Reducing catalyst 43 is put, the air admission hole 41 of reative cell 4 and 42 end of venthole are respectively arranged with mesh sheet 45 and hole baffle ring 44.Such as figure
Shown in 4, the end cap 5 is arranged on by being threaded to be screwed in end cap installing hole 35, and the outer end of reative cell 4 is accommodated in end
In lid 5, the inside of end cap 5 is sealing 51, and middle part is provided with screw thread 52, and outside is rotating portion 53, and the end of sealing 51 is set
Pressure ring 54 is equipped with, the first sealing ring 13,13 seal joint 54 of the first sealing ring, end are provided between 5 mounting hole of pressure ring and end cap
4 lateral wall of lid mounting hole 35 and reative cell is provided with stomata 55, the connection connection air flue of stomata 55 in the middle part of sliding channel of sealing 51
34 and the air admission hole 41 of reative cell 4, annular groove 56 is provided on the sealing in 55 outside of stomata, and second is provided on annular groove 56
Sealing ring 14, the inner ring of the second sealing ring 14 sealing sealing 51 and 5 mounting hole of end cap.
As shown in figure 3, going out air cooling device 8 includes U-tube 81, tube socket 82, pressing plate 83 and gas nozzle 12, the tube socket is set
It puts and U-tube 81 is fixed on tube socket 82 in 1 top board 83 of lagging casing, two gas nozzles 12 are separately mounted to U-tube 81
Both ends, one of gas nozzle 12 for connecting the gas outlet 10 of preheating cylinder 3, for connecting detection analyze by another gas nozzle 12
Device.U-tube 81 can be according to space and cooling degree selection other types, such as helix tube.
The air inlet 9 of sample gas from preheating cylinder 3 by filtration treatment enters, spiral of the gas path along part in itself
Channel carries out, and is then come out from connection air flue 34, and the gas channel formed by reative cell 4 and end cap 5 is subsequently into reative cell 4
Inner cavity, chemically reacted with reducing catalyst, react the high-temperature gas of completion and lead to by the gas outlet 10 of preheating cylinder 3
Processing unit analysis to be detected is re-fed into after U-tube cooling.In order to allow gas be involved in reaction and should not be by external environment
Gases affect, improves accuracy, and spy sets two seals to reach this effect.
Claims (9)
1. the NO reforming units of Vehicular exhaust detection, it is characterised in that：The device includes preheating cylinder（3）, lagging casing（1）、
Reative cell（4）, end cap（5）And heating unit, the preheating cylinder（3）It is arranged on lagging casing（1）Interior, described heating dress
It puts to heat preheating cylinder（3）, preheat cylinder（3）Side wrap be provided with heat preservation cotton material（2）, both ends are set to be equipped with respectively
Heat insulating mattress（11）With lagging casing（1）Heat-insulated setting；Preheat cylinder（3）An end set have air inlet（9）And gas outlet
（10）, air inlet（9）Preheating ventilation air flue is connected with, preheating ventilation air flue is by preheating cylinder（3）One end extend to separately
One end；The preheating cylinder（3）Inside also sets up installation mesoporous（30）, mesoporous is installed（30）One end connection preheating cylinder
（3）Gas outlet（10）, the other end is end cap installing hole（35）, the reative cell（4）It is mounted on installation mesoporous（30）
It is interior, reative cell（4）Inside it has been filled with reducing catalyst（43）, reative cell（4）Venthole（42）Connection preheating cylinder（3）'s
Gas outlet（10）, reative cell（4）Air admission hole（41）The gas outlet of connection preheating ventilation air flue；The end cap（5）It is dismantled and assembled
Formula is arranged on end cap installing hole（35）Interior, described reative cell（4）Outer end be accommodated in end cap（5）It is interior, end cap（5）Envelope completely
Close reative cell（4）Outer end.
2. the NO reforming units of Vehicular exhaust detection according to claim 1, it is characterised in that：Preheat cylinder（3）By shell
Body（31）And core（32）It forms, core（32）It is arranged on housing（31）It is interior, preheat cylinder（3）Air inlet（9）And gas outlet
（10）It is arranged at core（32）On, in core（32）Lateral surface be provided with helicla flute（33）, helicla flute（33）Described in composition
Preheating ventilation air flue, and in core（32）Radially setting connection air flue（34）, connect air flue（34）Connection preheating ventilation air flue
And reative cell（4）Air admission hole（41）.
3. the NO reforming units of Vehicular exhaust detection according to claim 1, it is characterised in that：End cap（5）Pass through setting
Screw thread（52）It is screwed on and is arranged on end cap installing hole（35）It is interior.
4. the NO reforming units of the Vehicular exhaust detection according to claims 1 or 2 or 3, it is characterised in that：End cap（5）'s
Inside is sealing（51）, middle part is provided with screw thread（52）, outside is rotating portion（53）, sealing（51）End set have pressure
Ring（54）, pressure ring（54）With end cap installing hole（35）Between be provided with the first sealing ring（13）, the first sealing ring（13）Sealing pressure
Ring（54）, end cap installing hole（35）And reative cell（4）Lateral wall, in sealing（51）Middle part of sliding channel be provided with stomata（55）,
Stomata（55）The gas outlet of connection preheating ventilation air flue and reative cell（4）Air admission hole（41）, stomata（55）The sealing in outside
（51）On be provided with annular groove（56）, annular groove（56）On be provided with the second sealing ring（14）, the second sealing ring（14）It seals close
Envelope portion（51）With end cap installing hole（35）Inner ring.
5. the NO reforming units of Vehicular exhaust detection according to claim 1, it is characterised in that：Reative cell（4）For cylinder
Tubular, reative cell（4）Air admission hole（41）And venthole（42）It is separately positioned on reative cell（4）Both ends, reducing catalyst
（43）It is filled in reative cell（4）Inside, in reative cell（4）Air admission hole（41）And venthole（42）End is respectively arranged with net
Piece（45）With hole baffle ring（44）.
6. the NO reforming units of Vehicular exhaust detection according to claim 1, it is characterised in that：The device further includes outlet
Cooling device（8）, go out air cooling device（8）Connection preheating cylinder（3）Gas outlet（10）.
7. the NO reforming units of Vehicular exhaust detection according to claim 6, it is characterised in that：Go out air cooling device to include
U-tube（81）, tube socket（82）, pressing plate（83）And gas nozzle（12）, the tube socket（82）It is arranged on lagging casing（1）Top board
（83）By U-tube（81）It is fixed at tube socket（82）On, two gas nozzles（12）It is separately mounted to U-tube（81）Both ends, wherein
One gas nozzle（12）Cylinder is preheated for connecting（3）Gas outlet（10）, another gas nozzle（12）It is analyzed for connecting detection
Device.
8. the NO reforming units of Vehicular exhaust detection according to claim 1, it is characterised in that：Preheat cylinder（3）Into
Gas port（9）And gas outlet（10）It is respectively arranged with gas nozzle（12）.
9. the NO reforming units of Vehicular exhaust detection according to claim 1, it is characterised in that：The heating unit is
Heating rod（6）, and in addition temperature measuring device is set（7）, heating rod（6）And temperature measuring device（7）It is plugged in preheating cylinder（3）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766902.0A CN105319120B (en) | 2015-11-12 | 2015-11-12 | The NO reforming units of Vehicular exhaust detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766902.0A CN105319120B (en) | 2015-11-12 | 2015-11-12 | The NO reforming units of Vehicular exhaust detection |
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| Publication Number | Publication Date |
|---|---|
| CN105319120A CN105319120A (en) | 2016-02-10 |
| CN105319120B true CN105319120B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510766902.0A Active CN105319120B (en) | 2015-11-12 | 2015-11-12 | The NO reforming units of Vehicular exhaust detection |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645104B (en) * | 2016-12-09 | 2019-05-24 | 浙江浙大鸣泉科技有限公司 | A kind of nitrogen oxide in automobile exhaust detection system |
| CN106770942B (en) * | 2016-12-09 | 2019-04-12 | 浙江浙大鸣泉科技有限公司 | A kind of nitrogen dioxide is converted to nitric oxide production conversion equipment |
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| CN1144551A (en) * | 1994-01-27 | 1997-03-05 | 戴维·K·本森 | Thermal management of vehicle exhaust systems |
| EP2410147A2 (en) * | 2010-07-22 | 2012-01-25 | J. Eberspächer GmbH & Co. KG | Exhaust system with reactive heating system |
| CN102465746A (en) * | 2010-11-10 | 2012-05-23 | 沃尔沃汽车公司 | Exhaust-gas aftertreatment device |
| CN102803673A (en) * | 2010-03-17 | 2012-11-28 | 丰田自动车株式会社 | Exhaust emission control device for internal combustion engine |
| CN103256105A (en) * | 2013-04-12 | 2013-08-21 | 刘光文 | Catalyst for waste gas heat-storage combustion and circular combustion of engine |
| CN104863674A (en) * | 2015-06-09 | 2015-08-26 | 高志男 | High-efficiency catalytic processor for automobile and engine exhaust emission |
| CN205277554U (en) * | 2015-11-12 | 2016-06-01 | 浙江浙大鸣泉科技有限公司 | Nitrogen oxygen conversion device that motor vehicle exhaust detected |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5210999B2 (en) * | 2009-09-02 | 2013-06-12 | 株式会社クボタ | Diesel engine exhaust treatment equipment |
-
2015
- 2015-11-12 CN CN201510766902.0A patent/CN105319120B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144551A (en) * | 1994-01-27 | 1997-03-05 | 戴维·K·本森 | Thermal management of vehicle exhaust systems |
| CN102803673A (en) * | 2010-03-17 | 2012-11-28 | 丰田自动车株式会社 | Exhaust emission control device for internal combustion engine |
| EP2410147A2 (en) * | 2010-07-22 | 2012-01-25 | J. Eberspächer GmbH & Co. KG | Exhaust system with reactive heating system |
| CN102465746A (en) * | 2010-11-10 | 2012-05-23 | 沃尔沃汽车公司 | Exhaust-gas aftertreatment device |
| CN103256105A (en) * | 2013-04-12 | 2013-08-21 | 刘光文 | Catalyst for waste gas heat-storage combustion and circular combustion of engine |
| CN104863674A (en) * | 2015-06-09 | 2015-08-26 | 高志男 | High-efficiency catalytic processor for automobile and engine exhaust emission |
| CN205277554U (en) * | 2015-11-12 | 2016-06-01 | 浙江浙大鸣泉科技有限公司 | Nitrogen oxygen conversion device that motor vehicle exhaust detected |
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| CN105319120A (en) | 2016-02-10 |
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