CN107100698A - A kind of particulate cascade trap of cyclonic separation interval regeneration - Google Patents
A kind of particulate cascade trap of cyclonic separation interval regeneration Download PDFInfo
- Publication number
- CN107100698A CN107100698A CN201710422666.XA CN201710422666A CN107100698A CN 107100698 A CN107100698 A CN 107100698A CN 201710422666 A CN201710422666 A CN 201710422666A CN 107100698 A CN107100698 A CN 107100698A
- Authority
- CN
- China
- Prior art keywords
- grain catcher
- exhaust
- cyclonic separation
- branch road
- exhaust branch
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/0217—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters the filtering elements having the form of hollow cylindrical bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/031—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters having means for by-passing filters, e.g. when clogged or during cold engine start
Abstract
The invention discloses a kind of cyclonic separation formula particulate cascade trap, including exhaust entrance, vortex separator, first exhaust branch road, second exhaust branch road, the first grain catcher, the second grain catcher, the 3rd grain catcher, reducer pipe and air exit, the present invention presses particle size ordered arrangement by vortex separator to particulate matter in exhaust, then particulate matter is trapped using the grain catcher of different pore size again, this can not only improve overall arresting efficiency, pressure drop is effectively reduced, while subregion can be realized and regenerated stage by stage.
Description
Technical field
The invention belongs to engine exhaust control field, especially a kind of particulate cascade of cyclonic separation interval regeneration is caught
Storage.
Background technology
Particulate matter has become one of primary air pollutants of China most cities, wherein suspended particulate substance PM10
It is even more severe contamination atmospheric environment with fine particle PM2.5, endangers human health.Health effect research institute of the U.S. is to ultra-fine grain
Thing is studied, and the gross mass that it accounts for particulate matter in surrounding air is limited, but its quantity accounting reaches 90%.Motor vehicle, it is special
Be not diesel engine be considered as superfine particulate matter most important source.Superfine particulate matter has stronger toxicity than bulky grain thing,
Because its particle diameter is small, composition is poisoned with bigger surface area absorption, and human respiratory can be entered and is good for so as to endanger the mankind
Health.The particulate matter of vehicular emission particularly diesel engine discharge PM in more than 80% be superfine particulate matter.
Diesel engine the advantages of its high thermal efficiency, low CO2 are discharged due to being widely used, but its discharge quantity of particulate matter is big,
Severe contamination, harm human body health are caused to environment.Therefore, with day of the automobile emission regulation to granular material discharged requirement
Benefit is improved, and it is a kind of inevitable choosing to reduce diesel engine and the granular material discharged of direct spray petrol engine in cylinder using preprocessor device
Select.Diesel particulate trap (DPF) and gasoline engine grain catcher (GPF) are generally acknowledged maximally effective particle purifying dresses
Put, be also one of best technology of commercial technology prospect in current purification techniques.
With the introducing of granular material discharged regulation increasingly stricter and amounts of particles discharge standard, the trapping of grain catcher
Efficiency needs further improve.However, the raising of arresting efficiency can cause bigger pressure to decline, cause to arrange in after-treatment system
Gas back pressure rises, and is short of power, oil consumption rise, deterioration of emission, it is therefore desirable to be purged to the particulate matter of deposition.
The content of the invention
Caught instant invention overcomes shortcoming of the prior art there is provided the particulate cascade that a kind of cyclonic separation interval regenerates
Storage, the present invention presses particle size ordered arrangement by vortex separator to particulate matter in exhaust, and different pore size is then used again
Grain catcher particulate matter is trapped, this can not only improve overall arresting efficiency, effectively reduce pressure drop, while can
To realize subregion and regenerate stage by stage.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：
A kind of particulate cascade trap of cyclonic separation interval regeneration, including exhaust entrance, vortex separator, first row
Gas branch road, second exhaust branch road, the first grain catcher, the second grain catcher, the 3rd grain catcher, reducer pipe and exhaust
Outlet, vortex separator is the straight tube pipeline configuration for being internally provided with volution blade, and its one end is directly connected with exhaust entrance, connect
The tail gas of motor vehicle emission is received, the volution blade is used to make air-flow produce centripetal acceleration, the other end of vortex separator and the
Three grain catchers are connected, and two openings connection first exhaust branch road and second exhaust respectively are provided with vortex separator
Branch road, first exhaust branch road is connected with the first grain catcher, and second exhaust branch road is connected with the second grain catcher, institute
The end outlet for stating the first grain catcher, the second grain catcher and the 3rd grain catcher converges at reducer pipe, reducer pipe
It is connected with air exit.
Moreover, the distance between the first exhaust branch road and exhaust entrance be less than second exhaust branch road and exhaust entrance it
Between distance,
Moreover, first grain catcher, the second grain catcher and the 3rd grain catcher are renewable wall stream
Grain catcher.
Moreover, the aperture that the aperture of first grain catcher is more than the second grain catcher is more than the 3rd granule capturing
The aperture of device.
Moreover, being also provided with some exhaust branches grain catcher phase smaller with aperture on the vortex separator
Connection, and uniformly converge in reducer pipe, using such a a variety of regeneration strategies, realize by stages every regeneration.
Moreover, the air exit axially has angle, the angle 5-15 degree of angle with vortex separator.
In the present invention, grain catcher is cylindric, and particulate matter is most from the air-flow that roto-clone separator is isolated at first
Greatly, the big grain catcher in correspondence trapping aperture, particle size is minimum in last remaining exhaust, the small particle in correspondence aperture
Trap.General principle is：In three-dimensional rotation flow field, carbonaceous particle thing mainly by gravity, centrifugal force, fluid resistance and by
As a result it is exactly that particle size is bigger, it is in vortex separator in the effect of additional force caused by velocity gradient and barometric gradient
The speed of axial direction is bigger, therefore with the increase of its time, particulate matter can move to vortex successively according to its particle size
Separator two ends.Based on this, the present invention is directed to the particulate matter in engine exhaust, and classification row is carried out to it by vortex separator
Sequence, then exhaust is purified by the grain catcher of correspondence pore size.Grain catcher in invention is using renewable
Wall stream grain catcher, three grain catchers filter the air-flow of the thing of size particles containing different-grain diameter, so as to realize classification trapping
Particulate matter in engine exhaust.
Compared with prior art, the beneficial effects of the invention are as follows：
1. the present invention carries out classification trapping by the way of rotating centrifugal to engine exhaust particulate matter, not motion portion
Part, simple in construction, easy to maintenance, cost is low.
2. for particulate matter in exhaust, first order of classification is trapped again, and pressure drop is small, and arresting efficiency is high.
3. a variety of regeneration strategies can be realized for different pore size grain catcher, realize that subregion and interval regenerate, reduction
Energy consumption.
Brief description of the drawings
Fig. 1 is inventive structure schematic diagram.
Fig. 2 is vortex separator, volution blade structural representation.
Wherein, 1 is exhaust entrance, and 2 be vortex separator, and 3 be first exhaust branch road, and 4 be second exhaust branch road, and 5 be the
One grain catcher, 6 be the 3rd grain catcher, and 7 be the second grain catcher, and 8 be reducer pipe, and 9 be air exit.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
As shown in FIG., a kind of particulate cascade trap of cyclonic separation interval regeneration, including exhaust entrance 1, vortex
Separator 2, first exhaust branch road 3, second exhaust branch road 4, the first grain catcher 5, the second grain catcher 7, the 3rd particle
Trap 6, reducer pipe 8 and air exit 9, vortex separator are the straight tube pipeline configuration for being internally provided with volution blade, one
End is directly connected with exhaust entrance, receives the tail gas of motor vehicle emission, and the volution blade is used to make air-flow produce centripetal acceleration,
The other end of vortex separator is connected with the 3rd grain catcher, and two openings are provided with vortex separator and are connected respectively
First exhaust branch road and second exhaust branch road, first exhaust branch road are connected with the first grain catcher, second exhaust branch road with
Second grain catcher is connected, the end of first grain catcher, the second grain catcher and the 3rd grain catcher
Outlet converges at reducer pipe, and reducer pipe is connected with air exit.
Moreover, the distance between the first exhaust branch road and exhaust entrance be less than second exhaust branch road and exhaust entrance it
Between distance,
Moreover, first grain catcher, the second grain catcher and the 3rd grain catcher are renewable wall stream
Grain catcher.
Moreover, the aperture that the aperture of first grain catcher is more than the second grain catcher is more than the 3rd granule capturing
The aperture of device.
Moreover, being also provided with some exhaust branches grain catcher phase smaller with aperture on the vortex separator
Connection, and uniformly converge in reducer pipe, using such a a variety of regeneration strategies, realize by stages every regeneration.
Moreover, the air exit axially has the angle of certain angle with vortex separator.
The present invention carries out classification trapping by the way of rotating centrifugal to engine exhaust particulate matter, without moving component,
Simple in construction, easy to maintenance, cost is low.For particulate matter in exhaust, first order of classification is trapped again, and pressure drop is small, and arresting efficiency is high.
A variety of regeneration strategies can be realized for different pore size grain catcher, realizes that subregion and interval regenerate, reduces energy consumption.
The present invention is described in detail above, but the content is only presently preferred embodiments of the present invention, it is impossible to recognized
For the practical range for limiting the present invention.Any changes and modifications in accordance with the scope of the present application, all should still return
Within the patent covering scope for belonging to the present invention.
Claims (6)
1. a kind of particulate cascade trap of cyclonic separation interval regeneration, it is characterised in that：Including exhaust entrance, cyclonic separation
Device, first exhaust branch road, second exhaust branch road, the first grain catcher, the second grain catcher, the 3rd grain catcher, change
Footpath is managed and air exit, and vortex separator is the straight tube pipeline configuration for being internally provided with volution blade, its one end directly with exhaust
Entrance is connected, and receives the tail gas of motor vehicle emission, and the volution blade is used to make air-flow produce centripetal acceleration, vortex separator
The other end is connected with the 3rd grain catcher, and two openings are provided with vortex separator and connect first exhaust branch road respectively
With second exhaust branch road, first exhaust branch road is connected with the first grain catcher, second exhaust branch road and the second granule capturing
Device is connected, and the end outlet of first grain catcher, the second grain catcher and the 3rd grain catcher converges at change
Footpath is managed, and reducer pipe is connected with air exit.
2. a kind of particulate cascade trap of cyclonic separation interval regeneration according to claim 1, it is characterised in that：Institute
A kind of cyclonic separation formula particulate cascade trap of first exhaust branch is stated, is less than second exhaust branch with the distance between exhaust entrance
The distance between road and exhaust entrance.
3. a kind of particulate cascade trap of cyclonic separation interval regeneration according to claim 1, it is characterised in that：Institute
The first grain catcher is stated, the second grain catcher and the 3rd grain catcher are renewable wall stream grain catcher.
4. a kind of particulate cascade trap of cyclonic separation interval regeneration according to claim 1, it is characterised in that：Institute
The aperture for stating the first grain catcher is more than aperture of the aperture more than the 3rd grain catcher of the second grain catcher.
5. a kind of particulate cascade trap of cyclonic separation interval regeneration according to claim 1, it is characterised in that：
Some exhaust branches grain catcher smaller with aperture is also provided with the vortex separator to be connected, and unified convergence
In in reducer pipe, using such a a variety of regeneration strategies, realize by stages every regeneration.
6. a kind of particulate cascade trap of cyclonic separation interval regeneration according to claim 1, it is characterised in that：Institute
Stating air exit and vortex separator axially has angle, the angle 5-15 degree of angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422666.XA CN107100698A (en) | 2017-06-07 | 2017-06-07 | A kind of particulate cascade trap of cyclonic separation interval regeneration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422666.XA CN107100698A (en) | 2017-06-07 | 2017-06-07 | A kind of particulate cascade trap of cyclonic separation interval regeneration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100698A true CN107100698A (en) | 2017-08-29 |
Family
ID=59660596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710422666.XA Pending CN107100698A (en) | 2017-06-07 | 2017-06-07 | A kind of particulate cascade trap of cyclonic separation interval regeneration |
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| Country | Link |
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| CN (1) | CN107100698A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1381691A (en) * | 1972-03-15 | 1975-01-22 | Aoi K | Apparatus for removing carbon monoxide from exhaust gases of internal cumbustion engines |
| SU808671A1 (en) * | 1979-05-10 | 1981-02-28 | Предприятие П/Я В-8745 | I.c.engine exhaust silencer and spark arrester |
| DE3842282C2 (en) * | 1987-12-16 | 1994-03-17 | Toyota Motor Co Ltd | Device for reducing the exhaust gas emission of a diesel engine |
| CN1229166A (en) * | 1999-01-17 | 1999-09-22 | 任安煜 | Automatic movable environmental protection device for recovery of vehicle harmful gas |
| FR2891006A1 (en) * | 2005-09-22 | 2007-03-23 | Renault Sas | Exhaust gas particles filtering and eliminating device for e.g. heat engine, has concentrator with central outlet allowing lightest part of gas to pass through it and annular outlet allowing heaviest part of gas to pass through it |
| CN101608564A (en) * | 2008-06-21 | 2009-12-23 | 德国曼商用车辆股份公司 | Be used for from the particle separator and the method for the exhaust flow separating particles of internal-combustion engine |
-
2017
- 2017-06-07 CN CN201710422666.XA patent/CN107100698A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1381691A (en) * | 1972-03-15 | 1975-01-22 | Aoi K | Apparatus for removing carbon monoxide from exhaust gases of internal cumbustion engines |
| SU808671A1 (en) * | 1979-05-10 | 1981-02-28 | Предприятие П/Я В-8745 | I.c.engine exhaust silencer and spark arrester |
| DE3842282C2 (en) * | 1987-12-16 | 1994-03-17 | Toyota Motor Co Ltd | Device for reducing the exhaust gas emission of a diesel engine |
| CN1229166A (en) * | 1999-01-17 | 1999-09-22 | 任安煜 | Automatic movable environmental protection device for recovery of vehicle harmful gas |
| FR2891006A1 (en) * | 2005-09-22 | 2007-03-23 | Renault Sas | Exhaust gas particles filtering and eliminating device for e.g. heat engine, has concentrator with central outlet allowing lightest part of gas to pass through it and annular outlet allowing heaviest part of gas to pass through it |
| CN101608564A (en) * | 2008-06-21 | 2009-12-23 | 德国曼商用车辆股份公司 | Be used for from the particle separator and the method for the exhaust flow separating particles of internal-combustion engine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |
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| RJ01 | Rejection of invention patent application after publication |