CN208858431U - A kind of commercial vehicle preprocessor and its air flow regulator - Google Patents
A kind of commercial vehicle preprocessor and its air flow regulator Download PDFInfo
- Publication number
- CN208858431U CN208858431U CN201821550322.3U CN201821550322U CN208858431U CN 208858431 U CN208858431 U CN 208858431U CN 201821550322 U CN201821550322 U CN 201821550322U CN 208858431 U CN208858431 U CN 208858431U
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- spoiler
- matching
- air flow
- centre circle
- flow regulator
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The utility model relates to a kind of commercial vehicle preprocessor and its air flow regulator, which includes shell, partition, metallic carrier, hush pipe and air flow regulator；Partition is vertically arranged to the inner cavity of shell；Metallic carrier and hush pipe matching are set to the inner cavity of shell and pass through membrane support；The air flow regulator is mounted among metallic carrier and is made of shield and spoiler；Spoiler Matching installation inside the shield and including spoiler inner ring, matching be set to the periphery of spoiler inner ring spoiler centre circle and matching be set to spoiler centre circle periphery spoiler outer ring；Spoiler inner ring, spoiler centre circle and spoiler outer ring are made of circumferentially equally distributed flow-disturbing window.The design of the utility model structure is simple, reasonable, and tail gas mixing efficiency between carrier is high, transformation efficiency and good muffling effect, and exhaust back pressure is low and power loss is few, good tail gas purification effect, is able to satisfy energy conservation and environmental protection requirement.
Description
Technical field
The utility model relates to Vehicular exhaust processing technology fields, and in particular to a kind of commercial vehicle preprocessor and its air-flow
Regulating device.
Background technique
SCR technology (SCR) is being urged for a treatment process of NOx in exhaust gas from diesel vehicle discharge
Under the action of agent, reducing agent ammonia or urea are sprayed into, the NOx in tail gas is reduced into N2 and H2O.Catalyst has noble metal and non-
Two class of noble metal.The technology is also widely used for diesel engine vent gas post-processing and is existed as far as possible by optimization oil spout and combustion process
In machine the generation of control particle PM, the nitrogen oxides then formed under off engine control technology excess oxygen use urea for vehicle (vehicle
Decomposed at a certain temperature with urea and generate ammonia) selective catalytic reduction is carried out to nitrogen oxides (NOx), it was both saved to reach
Energy and the purpose of emission reduction, this technology is European mainstream technology route, and the long-distance load-carrying vehicle in Europe and motorbus almost all are adopted
With this technology.Although existing common preprocessor structure is simple, tail gas mixes between carrier during vent gas treatment
Close that efficiency is relatively low, while the transformation efficiency of preprocessor and erasure effect are poor, exhaust is pressed higher, and power loss is larger, tail
Gas clean-up effect is undesirable, is unable to satisfy energy-saving and environment-friendly requirement.
Summary of the invention
The utility model is tail gas mixing efficiency between carrier in order to solve existing preprocessor during vent gas treatment
Relatively low, transformation efficiency and erasure effect are poor, and exhaust is high by pressure, and power loss is big, the undesirable problem of tail gas clean-up effect and
It is proposed that a kind of structure design is simple, reasonable, tail gas mixing efficiency between carrier is high, transformation efficiency and good muffling effect, exhaust back
Force down, the commercial vehicle preprocessor and its air flow regulator of good tail gas purification effect few with power loss.
The technical solution of the utility model is as follows:
Above-mentioned commercial vehicle preprocessor, including shell, partition, metallic carrier and hush pipe；The enclosure interior has
Accommodating space, front end are equipped with drive end bearing bracket, and rear end is equipped with rear end cap；And the shell is additionally provided with air inlet pipe and outlet
Pipe；Described air inlet pipe one end penetrates the case inside, and the other end is stretched out to the hull outside and connect with engine tail pipe；
Nozzle carrier is additionally provided on the upside of the other end that the air inlet pipe is stretched out to the hull outside；Described escape pipe one end penetrates the shell
Internal side, the other end are stretched out to the hull outside and are connect with outlet tail piece；The partition is vertically arranged to the shell
Inner cavity；The metallic carrier and hush pipe Matching installation in the shell inner cavity and pass through the membrane support；The noise reduction
One end that the air inlet pipe protrudes into the case inside is docked in the front end matching of pipe；The preprocessor further includes that Matching installation exists
Air flow regulator among the metallic carrier；The air flow regulator is made of shield and spoiler；The spoiler
Matching installation is set to disturbing for the periphery of the spoiler inner ring inside the shield and including spoiler inner ring, matching
Flow centre circle and matching are set to the spoiler outer ring of the periphery of the spoiler centre circle；The spoiler inner ring is disturbed
Flow centre circle and spoiler outer ring are made of circumferentially equally distributed flow-disturbing window.
The commercial vehicle preprocessor, in which: the spoiler inner ring is by 6 along 360 ° of equally distributed small-sized flow-disturbing windows
It constitutes；The spoiler centre circle is made of the equally distributed medium-sized flow-disturbing window of 12 peripheries along the spoiler inner ring；
The flow spoiler outer ring is made of the equally distributed large-scale flow-disturbing window of 24 peripheries along the spoiler centre circle.
The commercial vehicle preprocessor, in which: the shield is cylinder-like structure, internal to have accommodating space, axially
One end face closure, axial other end is at openning shape.
The commercial vehicle preprocessor, in which: the spoiler Matching installation is in the shield at the axial direction of closed state
On the inside of one end.
A kind of air flow regulator of commercial vehicle preprocessor, Matching installation is among metallic carrier and by shield and flow-disturbing
Piece composition；The spoiler Matching installation is set to the spoiler inside the shield and including spoiler inner ring, matching
The spoiler centre circle of the periphery of inner ring and matching are set to the spoiler outer ring of the periphery of the spoiler centre circle；
The spoiler inner ring, spoiler centre circle and spoiler outer ring are made of circumferentially equally distributed flow-disturbing window.
The air flow regulator, in which: the spoiler inner ring is by 6 along 360 ° of equally distributed small-sized flow-disturbing window structures
At.
The air flow regulator, in which: the spoiler centre circle is by 12 peripheries along the spoiler inner ring
Equally distributed medium-sized flow-disturbing window is constituted.
The air flow regulator, in which: the flow spoiler outer ring is by 24 peripheries along the spoiler centre circle
Equally distributed large size flow-disturbing window is constituted.
The air flow regulator, in which: the shield is cylinder-like structure, internal to have accommodating space, axial direction one
End face closing, axial other end is at openning shape.
The air flow regulator, in which: the spoiler Matching installation is in the shield at axial the one of closed state
End inside.
The utility model has the advantages that
The utility model commercial vehicle preprocessor and its design of air flow regulator structure are simple, reasonable, tail gas clean-up effect
Fruit is good, and the spoiler especially added among metallic carrier in air flow regulator and air flow regulator is uniformly distributed using three circles
Flow-disturbing window forms winding type air-flow, improves tail gas mixing efficiency between metallic carrier, can effectively improve the conversion of preprocessor
Efficiency and erasure effect reduce the exhaust back pressure and power loss of preprocessor, meet energy conservation and environmental protection requirement, also have it is practical and
Beautiful feature.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model commercial vehicle preprocessor；
Fig. 2 is the main view of the air flow regulator of the utility model commercial vehicle preprocessor；
Fig. 3 is the top view of the air flow regulator of the utility model commercial vehicle preprocessor；
The air flow regulator and the structural representation after metallic carrier assembly that Fig. 4 is the utility model commercial vehicle preprocessor
Figure.
Specific embodiment
As shown in Figure 1, the utility model commercial vehicle preprocessor, including shell 1, partition 2, metallic carrier 3, air-flow are adjusted
Device 4, hush pipe 5, mixer 6 and nozzle carrier 7.
There is accommodating space, front end Matching installation has drive end bearing bracket 11(to have intensity height, be conducive to chamber inside the shell 1
The characteristics of interior gas flows), rear end Matching installation has rear end cap 12, has thermal insulation board positioned at the 12 outside Matching installation of rear end cap
121.The front end lower horizontal of the shell 1 is connected with air inlet pipe 13；The air inlet pipe 13 uses " hump formula " air inlet pipe, one end
Protrude into 1 inside of the shell horizontal through drive end bearing bracket 11, the other end to protrude horizontally up on the outside of the shell 1 and extension end by clip with
The connection of engine tail pipe；Meanwhile the other end that the air inlet pipe 13 is stretched out on the outside of the shell 1 is also matched equipped with temperature sensor；It should
The rear end of shell 1 is connected with the escape pipe 14 being discharged for tail gas after purifying, the escape pipe 14 and air inlet close to central horizontal
Pipe 13 is spatially at parastate；1 inside of the shell is protruded into horizontal through rear end cap 12 in 14 one end of escape pipe, the other end to
Clip is protruded through on the outside of shell 1 to connect with outlet tail piece, and purified tail gas is discharged；The shell 1 is also installed on the outer wall
NOx sensor seat and block temperature sensor.
The partition 2 is vertically arranged to the inner cavity of the shell 1 comprising is vertically arranged to the front baffle 21 of 1 inner cavity of shell
With rear bulkhead 22；The inner cavity of shell 1 is divided into front chamber, middle chamber and rear chamber by the front baffle 21 and rear bulkhead 22；It should be into
13 one end of tracheae is protruded into horizontal through drive end bearing bracket 11 in the front chamber of the shell 1；14 one end of escape pipe is horizontal through rear end cap
12 protrude into the rear chamber of shell 1.The front baffle 21 and rear bulkhead 22 are used to support hush pipe 5 and metallic carrier 3；The front baffle 21
Surface has many mesh, mixes and circulates before the reaction for gas.
The metallic carrier 3 is horizontally placed on the inner cavity of the shell 1, front end penetrate 21 inside of front baffle of partition 2 and with
The front chamber of shell 1 is connected to, and the rear bulkhead 22 of middle chamber and partition 2 that rear end sequentially passes through the shell 1 protrudes into the back cavity of shell 1
Room；The metallic carrier 3 uses autonomous Design metallic carrier, by the catalyst contained in carrier coating, will not meet discharge mark
Quasi- CO, NO gas is converted into N2And H2O, while exhaust particulate object being adsorbed in metallic carrier 3, reach the mesh of cleaning of off-gas
's.
The hush pipe 5 is horizontally placed on the inner cavity of the shell 1 and matching is located at 3 downside of metallic carrier；The hush pipe 5 one
End level penetrates the inside of rear bulkhead 22 of partition 2, the other end sequentially pass through shell 1 middle chamber and partition 2 front baffle 21 simultaneously
The front chamber for protruding into shell 1 matches connection with one end that the air inlet pipe 13 protrudes into 1 inner cavity of shell；Wherein, which is located at shell
The indoor tube body of the lumen of body 1 is mesh tube structure, convenient for mixing and circulation before tail gas reaction；The hush pipe 5 close to after every
The mesh tube matching internal of 22 side of plate is equipped with inclined plate 51, is formed and is determined in hush pipe 5 convenient for air-flow by the design of inclined plate 51
To airflow direction, the middle chamber of shell 1 is entered by aperture in mesh tube.
The mixer 6 matching is set on the inside of the hush pipe 5 and 13 connecting part of air inlet pipe, i.e., 6 one end of mixer is stretched
Enter 5 inside of hush pipe, the other end protrudes into 13 inside of air inlet pipe；The mixer 6 can improve urea by spraying and motor exhaust is mixed
Close efficiency.
The air inlet pipe 13 that the nozzle carrier 7 is installed on the shell 1 is stretched out on the upside of the one end in 1 outside of shell；Wherein, the nozzle carrier
7 using the nozzle carrier to match with German Ou Bonaier injector, guarantees that urea spray angle is optimal.
As in Figure 2-4, which is mounted among metallic carrier 3, by shield 41 and 42 groups of spoiler
At.
The shield 41 is cylinder-like structure, and internal have an accommodating space, axial one end face closure, axial other end at
Openning shape.
42 Matching installation of spoiler is in 41 inside of shield and on the inside of axial one end at closed state comprising disturbs
Flow inner ring 421, spoiler centre circle 422 and spoiler outer ring 423.
The spoiler inner ring 421 is constituted by 6 along 360 ° of equally distributed small-sized flow-disturbing windows, and a small amount of tail gas is along small-sized flow-disturbing
Window passes through the generation of spoiler inner ring 421 and curls up mixed flow, forms innermost circle winding type air-flow.
The spoiler centre circle 422 matches the periphery for being set to the spoiler inner ring 421, by 12 along the spoiler
The equally distributed medium-sized flow-disturbing window of the periphery of inner ring 421 is constituted, and more tail gas passes through spoiler centre circle along medium-sized flow-disturbing window
Mixed flow is curled up in 422 generations, forms centre circle winding type air-flow.
The flow spoiler outer ring 423 matches the periphery for being set to the spoiler centre circle 422, by 24 along the spoiler
The equally distributed large-scale flow-disturbing window of the periphery of centre circle 422 is constituted, and a large amount of tail gas pass through flow spoiler outer ring along large-scale flow-disturbing window
Mixed flow is curled up in 423 generations, forms outer ring winding type air-flow.
Working principle of the utility model is:
Three strands of air-flows contact in shield 41, and generation is sufficiently mixed, and improve mixing efficiency, and then lifting system conversion effect
Rate.Following reaction occurs by the exhaust gas component of carrier:
Hydrolysis of urea: (NH2)2CO+H2O→2NH3+CO2
NOX reduction: NO+NO2+2NH3→2N2+3H2O
NH3 oxidation: 4NH3+3O2→2N2+6H2O。
Test proves: the utility model has high conversion efficiency, good muffling effect, exhaust back using this air flow regulator
It forces down, the small feature of power loss.
The design of the utility model structure is simple, reasonable, and tail gas mixing efficiency between carrier is high, transformation efficiency and erasure effect
Good, exhaust back pressure is low and power loss is few, good tail gas purification effect, is able to satisfy energy conservation and environmental protection requirement.
Claims (10)
1. a kind of commercial vehicle preprocessor, including shell, partition, metallic carrier and hush pipe；The enclosure interior has accommodating
Space, front end are equipped with drive end bearing bracket, and rear end is equipped with rear end cap；And the shell is additionally provided with air inlet pipe and an air outlet pipe；Institute
It states air inlet pipe one end and penetrates the case inside, the other end is stretched out to the hull outside and connect with engine tail pipe；It is described
Nozzle carrier is additionally provided on the upside of the other end that air inlet pipe is stretched out to the hull outside；Described escape pipe one end penetrates in the shell
Side, the other end are stretched out to the hull outside and are connect with outlet tail piece；The partition is vertically arranged to the inner cavity of the shell；
The metallic carrier and hush pipe Matching installation in the shell inner cavity and pass through the membrane support；Before the hush pipe
One end that the air inlet pipe protrudes into the case inside is docked in end matching；It is characterized by: the preprocessor further includes matching
The air flow regulator being mounted among the metallic carrier；The air flow regulator is made of shield and spoiler；It is described
Spoiler Matching installation is set to outside the circumference of the spoiler inner ring inside the shield and including spoiler inner ring, matching
The spoiler centre circle and matching that enclose are set to the spoiler outer ring of the periphery of the spoiler centre circle；In the spoiler
Circle, spoiler centre circle and spoiler outer ring are made of circumferentially equally distributed flow-disturbing window.
2. commercial vehicle preprocessor as described in claim 1, it is characterised in that: the spoiler inner ring is equal along 360 ° by 6
The small-sized flow-disturbing window of even distribution is constituted；The spoiler centre circle is uniformly distributed by 12 peripheries along the spoiler inner ring
Medium-sized flow-disturbing window constitute；The spoiler outer ring is by 24 equally distributed large sizes of periphery along the spoiler centre circle
Flow-disturbing window is constituted.
3. commercial vehicle preprocessor as described in claim 1, it is characterised in that: the shield is cylinder-like structure, inside
With accommodating space, axial one end face closure, axial other end is at openning shape.
4. commercial vehicle preprocessor as claimed in claim 3, it is characterised in that: the spoiler Matching installation is in the shield
On the inside of axial one end of closed state.
5. a kind of air flow regulator of the commercial vehicle preprocessor as described in Claims 1-4 any one, feature exist
In: the air flow regulator Matching installation is made of among metallic carrier shield and spoiler；The spoiler matching
It is installed on inside the shield and is set to including spoiler inner ring, matching the spoiler of the periphery of the spoiler inner ring
Centre circle and matching are set to the spoiler outer ring of the periphery of the spoiler centre circle；The spoiler inner ring, spoiler
Centre circle and spoiler outer ring are made of circumferentially equally distributed flow-disturbing window.
6. air flow regulator as claimed in claim 5, it is characterised in that: the spoiler inner ring is uniform along 360 ° by 6
The small-sized flow-disturbing window of distribution is constituted.
7. air flow regulator as claimed in claim 5, it is characterised in that: the spoiler centre circle is by 12 along the flow-disturbing
The equally distributed medium-sized flow-disturbing window of the periphery of piece inner ring is constituted.
8. air flow regulator as claimed in claim 5, it is characterised in that: the spoiler outer ring is by 24 along the flow-disturbing
The equally distributed large-scale flow-disturbing window of the periphery of piece centre circle is constituted.
9. air flow regulator as claimed in claim 5, it is characterised in that: the shield is cylinder-like structure, internal tool
There is accommodating space, axial one end face closure, axial other end is at openning shape.
10. air flow regulator as claimed in claim 9, it is characterised in that: the spoiler Matching installation is in the shield
On the inside of axial one end of closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821550322.3U CN208858431U (en) | 2018-09-21 | 2018-09-21 | A kind of commercial vehicle preprocessor and its air flow regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821550322.3U CN208858431U (en) | 2018-09-21 | 2018-09-21 | A kind of commercial vehicle preprocessor and its air flow regulator |
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| Publication Number | Publication Date |
|---|---|
| CN208858431U true CN208858431U (en) | 2019-05-14 |
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ID=66418827
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821550322.3U Active CN208858431U (en) | 2018-09-21 | 2018-09-21 | A kind of commercial vehicle preprocessor and its air flow regulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102828A (en) * | 2019-12-26 | 2020-05-05 | 苏州先机动力科技有限公司 | Bidirectional rotary turbulence device for air duct |
-
2018
- 2018-09-21 CN CN201821550322.3U patent/CN208858431U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102828A (en) * | 2019-12-26 | 2020-05-05 | 苏州先机动力科技有限公司 | Bidirectional rotary turbulence device for air duct |
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