CN208364220U - A kind of parallel tube type post-processing structural assembly - Google Patents
A kind of parallel tube type post-processing structural assembly Download PDFInfo
- Publication number
- CN208364220U CN208364220U CN201820520941.1U CN201820520941U CN208364220U CN 208364220 U CN208364220 U CN 208364220U CN 201820520941 U CN201820520941 U CN 201820520941U CN 208364220 U CN208364220 U CN 208364220U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- end cap
- air inlet
- tube
- carrier
- 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.)
- Active
Links
Classifications
-
- 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
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to diesel engine vent gas to post-process field, and specially a kind of parallel tube type post-processes structural assembly, comprising: the first cylinder, the second cylinder and the connecting tube for connecting two cylinders；First inner barrel successively installs level-one SCR carrier, second level SCR carrier；The small head end of right end cap and the other end of connecting tube are weldingly connected, and stub end is connected with second cylinder one end；The other end of second cylinder is provided with air inlet end cap；Second cylinder body outer wall is in segmentation structure, is connected between each section by anchor ear, in the second inner barrel from right end cap to being disposed with DPF carrier and DOC carrier air inlet end cap.Swirl mixing tube is provided in connecting tube.The utility model is using the integrated post-processing route of DOC, DPF, SCR, it is injected in exhaust system using aqueous solution of urea as reducing agent, it is set to be decomposed into ammonia in waste gas stream and react under the effect of the catalyst with nitrogen oxides, it is eventually converted into harmless nitrogen and water, to play the role of purifying vehicle exhaust.
Description
Technical field
The invention belongs to diesel engine vent gas post-processing fields more particularly to a kind of parallel tube type to post-process structural assembly.
Background technique
As increasingly harsh emission regulation promotes, energy-saving and emission-reduction upgrading paces are constantly accelerated, the discharge of diesel vehicle Europe six mark
Quasi- implementation is extremely urgent.To six stage of Europe, emission request only has been unable to satisfy with emission controls by improving combustion.Behind Europe six usual at present
Line of reasoning line are as follows: oxidation catalytic converter (DOC), grain catcher (DPF), selective catalytic reduction converter (SCR) combine,
Realize the strict control to particulate matter in exhaust gas from diesel vehicle (PM) and nitrogen oxides (NOx).
Currently, traditional SCR technology is applied on six product of Europe, NH3 uniformity is not easy to meet design requirement, designs and be stranded
Hardly possible is also easy to produce urea crystals.And that there are occupied spaces is big, disassembly is inconvenient, installation is not flexible, dress for six product of most domestic Europe
The disadvantages of vehicle versatility is bad.
In view of above content, it is necessary to which providing one kind can ensure that SCR is capable of the work of efficient stable, and can guarantee Europe
The diesel vehicle cartridge type of six discharge standards post-processes assembly.
Summary of the invention
The present invention is that it is total to provide a kind of parallel tube type post-processing structure in place of avoiding above-mentioned the shortcomings of the prior art
At characterized by comprising
First cylinder, the second cylinder and the connecting tube for connecting two cylinders；
The connecting tube both ends are connected separately with the identical left end cap of structure and right end cap,
The left end cap and right end cap are respectively provided with left end cap stub end, right end cap stub end and the small head end of left end cap, the right side
End cap；
The small head end of left end cap is connect with connecting tube one end, and stub end is connected with first cylinder one end；Described first
The other end of body is provided with outlet end cap；
First cylinder is provided with escape pipe and NOx sensor and PM sensor near outgassing end lid, described
Escape pipe one end is inserted into the first cylinder, and the other end extends cylinder body outer wall；Between the NOx sensor and PM sensor
Every being vertically set on cylinder body outer wall；
The other end of second cylinder is provided with air inlet end cap；
First inner barrel from air inlet end cap to left end cap between level-one SCR carrier, second level SCR carrier are successively installed；
The small head end of the right end cap and the other end of connecting tube are weldingly connected, and stub end is connected with second cylinder one end；
Second cylinder is provided with air inlet pipe at air inlet end cap, and described air inlet pipe one end is inserted into the second cylinder, another
Cylinder body outer wall is extended at end,
In the intracorporal air inlet tube end of cylinder by installation blanking cover sealing, air inlet pipe even circumferential is provided with multiple stomatas,
Second cylinder body outer wall is in segmentation structure, is connected between each section by anchor ear, the anchor ear last week goes back upwards
It is provided with differential pressure pickup, is carried in the second inner barrel from right end cap to DPF carrier and DOC is disposed with air inlet end cap
Body；
Swirl mixing tube is provided in the connecting tube, the end of swirl mixing tube is provided with urea nozzle, the urea
Nozzle stretches out in right end cap big end surface, one partition of vertical welding in the middle part of the swirl mixing tube.
Improvement to above-mentioned technical proposal: the outer end vertical tube axis of air inlet pipe is provided with inlet flange, inlet flange
Temperature sensor is installed, temperature sensor is arranged perpendicular to air inlet pipe in the air inlet pipe between barrel.
Improvement to above-mentioned technical proposal: the first cylinder and the second cylinder all have double-layer structure, fill out between inside and outside cylinder
Heat-preservation cotton is filled, outer layer barrel is insulating layer shell.
Improvement to above-mentioned technical proposal: anchor ear is removable V-arrangement hooping structure.
Improvement to above-mentioned technical proposal: it is welded to connect between swirl mixing tube and connecting tube.
The beneficial effects of the present invention are:
1, DOC, DPF are encapsulated in a cylinder, two-stage SCR is encapsulated in another cylinder, and two cylinder parallel connections are put
It sets, by piping connection, urea nozzle is installed on the pipeline；
2, the pollutants such as HC hydrocarbon, CO carbon monoxide are aoxidized by DOC, DPF traps the soot that engine generates
The pollutants such as the NOx in particle, SCR also parent pollutant make exhaust gas from diesel vehicle discharge six discharge standard of men's football Europe；
3, the end face DOC airflow homogeneity and fuel oil uniformity are good, and for DPF thereafter, regeneration provides guarantee safely；
4, DPF is connected by flange and anchor ear, and disassembly mode is flexible, is facilitated DPF to inspect periodically, removes soot blowing, is pacified again
Dress replacement etc.；
5, packaging cost is low, easy to operate, setting angle is flexible, left and right side installation；
6, reasonable mixed structure significantly improves the uniformity of air-flow and urea mixing, and urea crystals risk is smaller, real
Show higher NOx catalytic conversion efficiency, can satisfy six discharge standard of Europe.
7, cylinder, end cap, pipeline and DOC, DPF, SCR carrier are all made of double-layer barrel encapsulation, and central filler heat-preservation cotton mentions
The transfer efficiency of high SCR reaction, reduces urea crystals risk, while also reducing the hull-skin temperature of encapsulation cylinder, improves peace
Quan Xing.
Detailed description of the invention
Fig. 1 is the cross-sectional view of mixing arrangement of the present invention.
Fig. 2 is the right view of Fig. 1.
The top view of the first cylinder and the second cylinder Fig. 3 of the invention side by side.
The A-A view of Fig. 4 Fig. 3 of the present invention.
The top view of Fig. 5 mixing arrangement connecting tube of the present invention and the second cylinder side by side.
The B-B direction view of Fig. 6 Fig. 5 of the present invention.
The schematic perspective view of Fig. 7 mixing arrangement of the present invention.
Specific embodiment
Below with reference to specific drawings and examples, the invention will be further described.
As shown in figs. 1-7, a kind of parallel tube type post-processes structural assembly characterized by comprising
First cylinder 100, the second cylinder 200 and the connecting tube 16 for connecting two cylinders；
The connecting tube both ends are connected separately with the identical left end cap 310 of structure and right end cap 320,
The left end cap and right end cap are respectively provided with left end cap stub end 311, right end cap stub end 321 and left end cap microcephaly
Hold 312, right end cap 322；
The small head end of left end cap is connect with connecting tube one end, and stub end is connected with first cylinder one end；Described first
The other end of body is provided with outlet end cap 330；
First cylinder is provided with escape pipe 8 and NOx sensor 1 and PM sensor 2 near outgassing end lid,
Described escape pipe one end is inserted into the first cylinder, and the other end extends cylinder body outer wall；The NOx sensor 1 and PM sensing
2 interval vertical of device is arranged on cylinder body outer wall；
The other end of second cylinder is provided with air inlet end cap 340；
First inner barrel from air inlet end cap to left end cap between level-one SCR carrier 21, second level SCR carrier are successively installed
22；
The small head end of the right end cap and the other end of connecting tube are weldingly connected, and stub end is connected with second cylinder one end；
Second cylinder is provided with air inlet pipe 3 at air inlet end cap, and described air inlet pipe one end is inserted into the second cylinder, another
Cylinder body outer wall is extended at end,
In the intracorporal air inlet tube end of cylinder by installation blanking cover sealing, air inlet pipe even circumferential is provided with multiple stomatas,
Second cylinder body outer wall is in segmentation structure, is connected between each section by anchor ear 7, the anchor ear last week goes back upwards
It is provided with differential pressure pickup 12, in the second inner barrel from right end cap to being disposed with 13 He of DPF carrier air inlet end cap
DOC carrier 11；
Swirl mixing tube 18 is provided in the connecting tube 16, the end of swirl mixing tube is provided with urea nozzle 19, institute
It states urea nozzle and stretches out in right end cap big end surface, one partition 17 of vertical welding in the middle part of the swirl mixing tube.
Improvement to above-mentioned technical proposal: the outer end vertical tube axis of air inlet pipe is provided with inlet flange, inlet flange
Temperature sensor 4 is installed, temperature sensor is arranged perpendicular to air inlet pipe in the air inlet pipe between barrel.
Improvement to above-mentioned technical proposal: the first cylinder and the second cylinder all have double-layer structure, fill out between inside and outside cylinder
Heat-preservation cotton is filled, outer layer barrel is insulating layer shell.The transfer efficiency that heat preservation improves SCR reaction is carried out to exhaust gas, reduces urine
Element crystallization risk, while the hull-skin temperature of encapsulation cylinder is also reduced, improve safety.
Improvement to above-mentioned technical proposal: anchor ear 7 is removable V-arrangement hooping structure.
Improvement to above-mentioned technical proposal: it is welded to connect between swirl mixing tube 18 and connecting tube 16.
Concrete operating principle are as follows: engine exhaust is entered by air inlet pipe 3, DOC carrier 11 is then entered back into, in catalyst
The lower HC and CO ingredient that redox reaction occurs, purifies in exhaust gas of effect；Then exhaust gas enters back into DPF carrier 13, passes through DPF
Granule capturing and filtration, purify exhaust gas in carbon soot particles ingredient, later, exhaust gas enters injection mixed cell.
Urea nozzle 19 injects urea solution into injection mixed cell at this time, and air-flow is mixed with urea liquid,
Under the guide functions of swirl mixing tube 18, air-flow occurs to rotate strongly inside mixing tube, forms turbulent flow, enters level-one later
21 end face of SCR carrier.After mixed airflow enters level-one SCR carrier 21, second level SCR carrier 22, under the catalytic action of catalyst,
Chemoselective reduction occurs for NH3 and NOx, produces H2O and N2, purifies most NOx in exhaust gas.Finally, what is be cleaned is useless
Gas is discharged into atmosphere by escape pipe 8.So far, pass through the immixture of this assembly mixed cell and urging for DOC, DPF, SCR
Change effect, the pollutant load being discharged in exhaust gas can reach six discharge standard of Europe.
DPF carrier section is connect by a pair of removable V anchor ear 7 with product assembly, and anchor ear of dismantling can take out DPF load
Body 13 carries out the soot blowing maintenance road Hou Yuan to DPF carrier and reinstalls, convenient and efficient.
In addition, being equipped with temperature sensor 4 in air inlet pipe 3, since air intake structure is compact, which can be used
The initiation temperature of 11 front end of DOC carrier is detected, NOx sensor 1 is installed on inlet chamber cylinder, to detect tail
NOx content in gas.Differential pressure pickup 12 is installed at DPF carrier both ends, to detect the carbon content being storaged inside DPF, instead
Engine ECU of feeding signal is to start dpf regeneration program；Temperature sensor is also installed in the front end DPF simultaneously, for detecting
The regeneration temperature of DPF.In SCR carrier front end, it is also equipped with temperature sensor, to detect the temperature of SCR carrier front end face, from
And urea is sprayed in suitable temperature to determine to Engine ECU signal.Outlet side is provided with NOx sensor, PM sensing
Device, to detect whether NOx and PM pollutant in tail gas meet discharge standard, outlet side temperature sensor is used to adjust control plan
Slightly.
It should be noted last that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it,
Although being described the invention in detail referring to example, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention, should all cover
In the scope of the claims of the present invention.
Claims (5)
1. a kind of parallel tube type post-processes structural assembly characterized by comprising
First cylinder (100), the second cylinder (200) and the connecting tube (16) for connecting two cylinders；
The connecting tube both ends are connected separately with the identical left end cap of structure (310) and right end cap (320),
The left end cap and right end cap are respectively provided with left end cap stub end (311), right end cap stub end (321)
With the small head end of left end cap (312), right end cap (322)；
The small head end of left end cap is connect with connecting tube one end, and stub end is connected with first cylinder one end；First cylinder
The other end is provided with outlet end cap (330)；
First cylinder is provided with escape pipe (8) and NOx sensor (1) and PM sensor near outgassing end lid
(2), described escape pipe one end is inserted into the first cylinder, and the other end extends cylinder body outer wall；The NOx sensor (1) and
PM sensor (2) interval vertical is arranged on cylinder body outer wall；
The other end of second cylinder is provided with air inlet end cap (340)；
First inner barrel from air inlet end cap to left end cap between level-one SCR carrier (21), second level SCR carrier are successively installed
(22)；
The small head end of the right end cap and the other end of connecting tube are weldingly connected, and stub end is connected with second cylinder one end；
Second cylinder is provided with air inlet pipe (3) at air inlet end cap, and described air inlet pipe one end is inserted into the second cylinder, the other end
Extend cylinder body outer wall,
In the intracorporal air inlet tube end of cylinder by installation blanking cover sealing, air inlet pipe even circumferential is provided with multiple stomatas,
Second cylinder body outer wall is in segmentation structure, is connected between each section by anchor ear (7), the anchor ear last week also sets upwards
Differential pressure pickup (12) are equipped with, in the second inner barrel from right end cap to being disposed with DPF carrier (13) air inlet end cap
With DOC carrier (11)；
It being provided with swirl mixing tube (18) in the connecting tube (16), the end of swirl mixing tube is provided with urea nozzle (19),
The urea nozzle stretches out in right end cap big end surface, one partition of vertical welding (17) in the middle part of the swirl mixing tube.
2. a kind of parallel tube type as described in claim 1 post-processes structural assembly, which is characterized in that the outer end of the air inlet pipe
Portion's vertical tube axis is provided with inlet flange, is equipped in the air inlet pipe between inlet flange and barrel temperature sensor (4), temperature
Sensor vertical is spent to be arranged in air inlet pipe.
3. a kind of parallel tube type as described in claim 1 post-processes structural assembly, which is characterized in that first cylinder and the
Two cylinders all have double-layer structure, and heat-preservation cotton is filled between inside and outside cylinder, and outer layer barrel is insulating layer shell.
4. a kind of parallel tube type as described in claim 1 post-processes structural assembly, which is characterized in that the anchor ear (7) is can
Tear Formula V shape hooping structure open.
5. a kind of parallel tube type as described in claim 1 post-processes structural assembly, which is characterized in that the swirl mixing tube
(18) it is welded to connect between connecting tube (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820520941.1U CN208364220U (en) | 2018-04-13 | 2018-04-13 | A kind of parallel tube type post-processing structural assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820520941.1U CN208364220U (en) | 2018-04-13 | 2018-04-13 | A kind of parallel tube type post-processing structural assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208364220U true CN208364220U (en) | 2019-01-11 |
Family
ID=64922537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820520941.1U Active CN208364220U (en) | 2018-04-13 | 2018-04-13 | A kind of parallel tube type post-processing structural assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208364220U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412593A (en) * | 2018-04-13 | 2018-08-17 | 无锡威孚力达催化净化器有限责任公司 | A kind of parallel tube type post-processing structural assembly |
| CN110185518A (en) * | 2019-05-24 | 2019-08-30 | 安徽江淮汽车集团股份有限公司 | Post-process integrating device and diesel engine |
| CN110848004A (en) * | 2019-12-19 | 2020-02-28 | 无锡亿利环保科技有限公司 | Multistage parallel SCR system |
| CN113775395A (en) * | 2021-10-18 | 2021-12-10 | 无锡威孚力达催化净化器有限责任公司 | Font mixing arrangement and aftertreatment system return |
| CN113914972A (en) * | 2021-11-08 | 2022-01-11 | 山东宝安环保科技股份有限公司 | Non-road engineering machinery diesel vehicle tail gas aftertreatment device |
-
2018
- 2018-04-13 CN CN201820520941.1U patent/CN208364220U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412593A (en) * | 2018-04-13 | 2018-08-17 | 无锡威孚力达催化净化器有限责任公司 | A kind of parallel tube type post-processing structural assembly |
| CN110185518A (en) * | 2019-05-24 | 2019-08-30 | 安徽江淮汽车集团股份有限公司 | Post-process integrating device and diesel engine |
| CN110848004A (en) * | 2019-12-19 | 2020-02-28 | 无锡亿利环保科技有限公司 | Multistage parallel SCR system |
| CN113775395A (en) * | 2021-10-18 | 2021-12-10 | 无锡威孚力达催化净化器有限责任公司 | Font mixing arrangement and aftertreatment system return |
| CN113914972A (en) * | 2021-11-08 | 2022-01-11 | 山东宝安环保科技股份有限公司 | Non-road engineering machinery diesel vehicle tail gas aftertreatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208364220U (en) | A kind of parallel tube type post-processing structural assembly | |
| CN106437982B (en) | Axis goes out cartridge type post-processing assembly into axis | |
| CN108412593A (en) | A kind of parallel tube type post-processing structural assembly | |
| CN110206623A (en) | A kind of motor exhaust post-processing control system and control method | |
| CN105402007A (en) | Box type post processing assembly for diesel vehicle | |
| CN204457948U (en) | Exhaust aftertreatment assembly device | |
| CN102191975A (en) | Gas/liquid mixing device for diesel exhaust aftertreatment | |
| CN108397262A (en) | Light-duty diesel vehicle oblique cutting eddy flow mix aperture pipe post-processes encapsulating structure | |
| CN106285876A (en) | The box after-treatment device of diesel vehicle | |
| CN208380679U (en) | A kind of double down system of in-use automotive exhaust pollution of diesel engines object initiative regeneration | |
| CN102966413A (en) | Nachbehandlungssystem | |
| CN112112717A (en) | Tail gas purification device of mining explosion-proof diesel engine | |
| CN201588675U (en) | Diesel particulate filter and selective catalytic reduction compound system for tail gas clean-up of diesel engine | |
| CN109173725A (en) | A kind of marine low speed diesel engine exhaust gas plenum chamber with catalytic denitration function | |
| CN106337714B (en) | Nozzle integrated form SCR catalytic muffler | |
| JP2012021507A (en) | Exhaust gas purification device | |
| CN102072051A (en) | Diesel engine for motor vehicles | |
| CN209510425U (en) | A kind of diesel oil platform-type that DPF is removable post-processing assembly | |
| CN207974875U (en) | A kind of exhaust gas from diesel vehicle catalytic purification converter | |
| CN209990526U (en) | Compact U-shaped cylinder type post-processing platform | |
| CN208330572U (en) | Diesel engine cooling EGR discharge treating system | |
| CN109162790A (en) | A kind of compact exhaust gas aftertreatment system | |
| CN213270019U (en) | Tail gas purification device of mining explosion-proof diesel engine | |
| CN214366300U (en) | NOx absorption system used under automobile cold start working condition | |
| CN207554168U (en) | A kind of exhaust gas post-treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |