CN108194169A - A kind of burner for dpf regeneration - Google Patents
A kind of burner for dpf regeneration Download PDFInfo
- Publication number
- CN108194169A CN108194169A CN201810181006.1A CN201810181006A CN108194169A CN 108194169 A CN108194169 A CN 108194169A CN 201810181006 A CN201810181006 A CN 201810181006A CN 108194169 A CN108194169 A CN 108194169A
- Authority
- CN
- China
- Prior art keywords
- combustion
- diesel oil
- burner
- tail gas
- air flow
- 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
Links
- 230000008929 regeneration Effects 0.000 title claims abstract description 12
- 238000011069 regeneration method Methods 0.000 title claims abstract description 12
- 238000002485 combustion reaction Methods 0.000 claims abstract description 52
- 239000002283 diesel fuel Substances 0.000 claims abstract description 27
- 238000000889 atomisation Methods 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 35
- 239000003921 oil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000000446 fuel Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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
- F01N3/023—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
- F01N3/025—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 using fuel burner or by adding fuel to exhaust
-
- 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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/14—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a fuel burner
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The present invention provides a kind of burner for dpf regeneration, including combustion barrel, diesel oil atomization device and ignition mechanism, diesel oil atomization device is used to provide the diesel oil of atomization to combustion barrel, ignition mechanism is used to light the diesel oil through atomization, burner has three-way pipe, the first access connection exhaust duct of diesel engine of three-way pipe, alternate path connection combustion air current equiblibrium mass distribution room, third path connects tail gas mixing cavity, air flow rate between alternate path and third path is distributed by valve, combustion air current equiblibrium mass distribution has perforated cylinder in room, perforated cylinder inner wall is connected with the drainage plate of several radial directions, combustion barrel is located in tail gas mixing cavity, its front end is located in perforated cylinder, rear end connects tail gas mixing cavity, the nozzle and ignition mechanism of diesel oil atomization device are located at combustion barrel front end, tail gas mixing cavity rear end is used to connect DPF arrival ends.
Description
Technical field
The present invention relates to diesel engine emissions control technology, particularly for particulate filter（DPF）Regenerated burner.
Background technology
Particulate filter in diesel engine vehicle emission aftertreatment technology（DPF）During use, the particle that is accumulated in DPF
Object is more and more, and engine exhaust back pressure is caused to gradually rise, and after a period of time, exhaust back pressure is higher by limit value, needs in time
Start reproducer.
Reproducer is the process for removing particulate matter in DPF, mainly heats method of reproduction, washes method of reproduction, and pressure-air is anti-
Blow method etc..It heats method of reproduction and the air-flow that temperature is about 400-600 DEG C, the particulate matter oxygen that will be accumulated in DPF is generated by heating unit
Change is burnt.Only heating method of reproduction can be regenerated in the case where not dismantling DPF at present, be to compare easily method.
Optional heating unit generally has electric calorifie installation or fuel burner.Motor exhaust can be heated to what is needed by electric calorifie installation
Temperature, but power consumption is big, and alternator for vehicle cannot meet power requirement, therefore need external power supply that could complete during regeneration.
Fuel burner is burnt, the high-temperature tail gas after burning is imported in DPF and realized again using the fuel of injection in combustion air current
It is raw.
In dpf regeneration system disclosed in CN104454086A, combustion-supporting gas is used air as, electronic control unit is according to collection
Temperature signal and pressure signal control the oil spout of burner oil pump and burner in glow plug ignite, then generate High Temperature Gas
Body, high-temperature gas import the exhaust pipe of engine and the exhaust gas in exhaust pipe are heated, and the exhaust gas after heating is aoxidized through DOC and further risen
Temperature realizes the particle regeneration in DPF.
Firing up device disclosed in CN105971692A is used to for burned flame to be sent into ART systems together with tail gas,
Using comburant oxygen remaining in tail gas come so that the temperature of tail gas increases rapidly so that the finely ground particles being trapped in DPF
Burning, firing up device are carried out combustion-supporting using air.
CN206545532U discloses a kind of burning mixer independent burning device, and connection different including coaxial core diameter
The first inner casing and the second inner casing, be respectively formed the first internal independence combustion chamber and the second internal independence combustion chamber, the first inner casing
The outer wall of the other end is fixedly connected with the casing by the second mounting base, the influence that can be burnt to avoid exhaust gas flow to fuel oil, tail
Gas will not cause to wash away to flame.
More than burner is all using air as combustion-supporting gas.For the engine of relatively high power, due to needing
Shang kilowatt high-power high voltage wind turbine, alternator for vehicle or battery do not have such power supply capacity, therefore are needed during dpf regeneration outer
Power supply is connect, use is very inconvenient.
Invention content
The purpose of the present invention is to provide a kind of oil burner using diesel exhaust gas as combustion-supporting gas, the burnings
Device igniting, burning reliability are high, and the DPF for rear end provides the high-temperature gas for meeting regeneration requirements.
The present invention shunts engine exhaust, and a part therein is taken to be used as combustion-supporting gas, tail gas after burning with
Another part exhaust mixing shunted away, forms the high-temperature gas for meeting dpf regeneration requirement.
Burner of the present invention includes combustion barrel, diesel oil atomization device and ignition mechanism, and diesel oil atomization device is used to carry to combustion barrel
For the diesel oil of atomization, ignition mechanism is used to light the diesel oil through atomization, which is characterized in that the burner has three-way pipe, threeway
The first access connection exhaust duct of diesel engine of pipe, alternate path connection combustion air current equiblibrium mass distribution room, third path connection tail
Gas mixing cavity, the air flow rate between alternate path and third path are distributed by valve, and combustion air current equiblibrium mass distribution has in room
Perforated cylinder, perforated cylinder inner wall are connected with the drainage plate of several radial directions, and combustion barrel is located in tail gas mixing cavity, front end position
In perforated cylinder, rear end connection tail gas mixing cavity, the nozzle and ignition mechanism of diesel oil atomization device are located at combustion barrel front end, tail
Gas mixing cavity rear end is used to connect DPF arrival ends.
Preferably, three-way pipe is distribution of air flow valve, has a rotatable valve plate in three-way pipe, passes through valve plate rotational angle
Variation can make the first access enter air-flow be allocated between two accesses and third path, valve plate connection motor drive mechanism.
In combustion air current equiblibrium mass distribution room, there is air-flow directing plate between the arrival end and perforated cylinder of alternate path,
The air-flow entered in combustion air current equiblibrium mass distribution room is made to be rotated around perforated cylinder.Distribution of air flow valve is preferably located at combustion air current
In equiblibrium mass distribution room.
There are several radially-arranged drainage plates on the inside of perforated cylinder, the swirling eddy into perforated cylinder can be promoted to be converted into
Axial flow.
There is porous regenerator body in combustion barrel end.
If burner further includes electronic control unit, pressure sensor and dry temperature sensor, the ignition mechanism, diesel oil atomization
Device, distribution of air flow valve are controlled by electronic control unit, by debugging obtain burner can light a fire when distribution of air flow valve open position and
Distribution of air flow valve opening position when combustion state is preferable, when starting reproducer, electronic control unit starts distribution of air flow valve and extremely may be used
Open position during igniting, then electronic control unit starting ignition device and diesel oil atomization device, after electronic control unit obtains burner
During the heating signal of the temperature sensor at end, distribution of air flow valve converts to combustion state open position when preferable, combustion process
Flow of the electronic control unit according to the temperature sensor reading control diesel oil atomization device of burner rear end, when pressure sensor output valve
When being reduced to the temperature sensor reading of setting value or DPF rear ends and being increased to set temperature, ignition mechanism and diesel oil mist are closed
Change device power supply, complete reproducer.
The present invention participates in the burning of diesel oil using suitable exhaust as combustion-supporting gas by being allocated to exhaust airstream,
It is combustion-supporting not need to high pressure positive blower progress, solves the problems, such as that alternator for vehicle and battery are powered without normal direction high pressure positive blower, system power consumption
Less than 100 watts.Simple structure of the present invention, reliability are high, available for using diesel oil as the road mobile vehicle of fuel, engineering machinery,
DPF is regenerated in farm machinery or generating set.
Description of the drawings
Fig. 1 is axial connection mode burner sectional view.
Fig. 2 is burner part drawing.
Fig. 3, Fig. 4 are combustion air current equiblibrium mass distribution room views.
Fig. 5 is radially connected mode burner sectional view.
Specific embodiment
Burner as depicted has distribution of air flow valve 1, and the distribution of air flow valve 1 of Fig. 1 is located at combustion air current equiblibrium mass distribution room 3
In, the distribution of air flow valve of Fig. 5 and combustion air current equiblibrium mass distribution room 3 and tail gas mixing cavity 15 are radially connected.The distribution of air flow valve 1
There are three accesses, the first access connection exhaust duct of diesel engine 2, and alternate path connection combustion air current equiblibrium mass distribution room 3, third is led to
Road connection tail gas mixing cavity 15.For the burner of axial connection mode, third path can have multi-through hole pipe by one
The antipriming pipe 4 of the endcapped of wall connects tail gas mixing cavity 15, and the air-flow of entrance is made to be uniformly distributed in tail gas mixing cavity 15.
There is a rotatable valve plate 5 in distribution of air flow valve 1, the air-flow of the first access entrance can be made by the variation of 5 rotational angle of valve plate
It is allocated between two accesses and third path, when valve plate 5 turns to zero degree, valve plate 5 closes combustion air current equilibrium point
Cloth room 3, air-flow fully enter tail gas mixing cavity 15.When valve plate 5 turns to maximum angle, valve plate 5 closes tail gas mixing chamber
Road 15, air-flow fully enter combustion air current equiblibrium mass distribution room 3.The rotational angle of distribution of air flow valve 1 is controlled by motor 6.
Combustion air current equiblibrium mass distribution room 3 is a circular pipe, there is air-flow directing plate 11 and more in combustion gas stream equiblibrium mass distribution room 3
Hole cylinder 12, air-flow directing plate 11 are located between the arrival end of distribution of air flow valve alternate path and perforated cylinder 12, air-flow guiding
The air-flow entered from distribution of air flow valve alternate path can be guided and be rotated around perforated cylinder 12 by plate 11.
The barrel of perforated cylinder 12 has equally distributed through-hole, and there are several radially-arranged drainage plates 13, Round Porous in inside
The swirling eddy that the through-hole of cylinder 12 enters is converted into axial or close axial air flow by the guiding of drainage plate 13.
Combustion barrel 14 is located in tail gas mixing cavity 15, and the front end sleeve of combustion barrel 14 is in perforated cylinder 12, rear end connection
Tail gas mixing cavity 15, the nozzle 16 and ignition mechanism 17 of diesel oil atomization device are located at combustion barrel front end.
There is porous regenerator body 18 in the rear end of combustion barrel 14, and the unburned mist of oil that nozzle 16 sprays is made to flow through porous regenerator body
Completely burned when 18.
There is porous plate 19 in tail gas mixing cavity 15, with the air-flow porous plate 19 that distribution of air flow valve alternate path is promoted to enter
Longer time and the progress heat exchange of 14 outer wall of combustion barrel are stopped in 19 front end of porous plate.15 rear end of tail gas mixing cavity has air-flow to mix
Clutch 20 further makes the high temperature gas flow that combustion barrel 14 ejects uniformly be mixed with the low-temperature airflow that alternate path flows out.
If electric control part of the present invention include electronic control unit, pressure sensor and dry temperature sensor, ignition mechanism, oil pump,
Motor 6 is controlled by electronic control unit.Pressure sensor readings in engine exhaust system are increased to the regeneration of setting
When program starts pressure, can reproducer be started by automobile driver or vehicle automatically.
In the following manner can be used in the adjusting of valve plate 5：Electronic control unit starts motor 6, and valve plate 5 closes combustion air current equiblibrium mass distribution
Room 3, electronic control unit starting ignition device and oil pump, valve plate 5 rotate the air-flow stream for gradually increasing combustion air current equiblibrium mass distribution room 3
Amount, when electronic control unit obtain positioned at burner rear end temperature sensor heating signal when, illustrate to light a fire successfully, valve plate 5 after
It is continuous to open an angle to the preferable opening of combustion state.
In the following manner also can be used in the adjusting of valve plate 5：Electronic control unit starts motor 6, and valve plate 5 closes tail gas mixing cavity
15, engine exhaust is all flowed through into combustion barrel, electronic control unit starting ignition device and oil pump, the rotation of valve plate 5, which gradually decreases, to be helped
The air flow rate of combustion gas stream equiblibrium mass distribution room 3, when electronic control unit obtains the heating letter of the temperature sensor positioned at burner rear end
Number when, valve plate 5 stops operating, then electronic control unit control valve plate 5 rotate backward an angle, compensate the liter because of temperature sensor
Temperature detector, which is surveyed, lags rotated angle.
In combustion process, stream of the electronic control unit according to the temperature sensor reading control diesel oil atomization device of burner rear end
Amount, makes mixed airflow temperature reach preset dpf regeneration temperature.When pressure sensor readings be reduced to setting value or
When the temperature sensor reading of DPF rear ends is increased to set temperature, ignition mechanism and oil pump power supply, engine delay supply are closed
Until DPF rear ends temperature declines, reproducer is completed for exhaust.
Claims (7)
1. a kind of burner for dpf regeneration, including combustion barrel, diesel oil atomization device and ignition mechanism, diesel oil atomization device are used for
The diesel oil of atomization is provided to combustion barrel, ignition mechanism is used to light the diesel oil through atomization, which is characterized in that the burner has three
Siphunculus, the first access connection exhaust duct of diesel engine of three-way pipe, alternate path connection combustion air current equiblibrium mass distribution room, third are led to
Road connects tail gas mixing cavity, and the air flow rate between alternate path and third path is distributed by valve, combustion air current equilibrium point
There is perforated cylinder in cloth room, perforated cylinder inner wall is connected with the drainage plate of several radial directions, and combustion barrel is located in tail gas mixing cavity,
Its front end is located in perforated cylinder, and rear end connection tail gas mixing cavity, the nozzle and ignition mechanism of diesel oil atomization device are located at burning
Cylinder front end, tail gas mixing cavity rear end are used to connect DPF arrival ends.
2. burner according to claim 1, which is characterized in that the three-way pipe is distribution of air flow valve, has one in three-way pipe
Rotatable valve plate, by the variation of valve plate rotational angle can make the air-flow that the first access enters two accesses and third path it
Between be allocated, valve plate connection motor drive mechanism.
3. burner according to claim 1, which is characterized in that logical positioned at second in the combustion air current equiblibrium mass distribution room
There is air-flow directing plate between the arrival end and perforated cylinder on road, make to enter the air-flow in combustion air current equiblibrium mass distribution room around Round Porous
Cylinder rotation.
4. burner according to claim 2, which is characterized in that the distribution of air flow valve is located at combustion air current equiblibrium mass distribution room
In.
5. burner according to claim 1 or claim 2, which is characterized in that have on the inside of the perforated cylinder several radially-arranged
Drainage plate.
6. burner according to claim 1 or claim 2, which is characterized in that there is porous regenerator body in the combustion barrel end.
7. burner according to claim 1 or claim 2, which is characterized in that the burner further includes electronic control unit, pressure sensing
If device and dry temperature sensor, the ignition mechanism, diesel oil atomization device, distribution of air flow valve are controlled by electronic control unit, pass through debugging
The burner open position of distribution of air flow valve and distribution of air flow valve opening position during preferable combustion state when can light a fire are obtained, is opened
During dynamic reproducer, electronic control unit starts open position when distribution of air flow valve can extremely light a fire, then electronic control unit starting ignition
Device and diesel oil atomization device, when electronic control unit obtains the heating signal of the temperature sensor of burner rear end, distribution of air flow valve
Convert the open position to combustion state when preferable, temperature sensor reading of the combustion process electronic control unit according to burner rear end
The flow of diesel oil atomization device is controlled, when the temperature sensor that pressure sensor output valve is reduced to setting value or DPF rear ends is read
When number is increased to set temperature, ignition mechanism and diesel oil atomization device power supply are closed, completes reproducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810181006.1A CN108194169A (en) | 2018-03-06 | 2018-03-06 | A kind of burner for dpf regeneration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810181006.1A CN108194169A (en) | 2018-03-06 | 2018-03-06 | A kind of burner for dpf regeneration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108194169A true CN108194169A (en) | 2018-06-22 |
Family
ID=62594556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810181006.1A Pending CN108194169A (en) | 2018-03-06 | 2018-03-06 | A kind of burner for dpf regeneration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108194169A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999677A (en) * | 2018-08-31 | 2018-12-14 | 中自环保科技股份有限公司 | A kind of burner for dpf regeneration |
| CN109958503A (en) * | 2019-04-06 | 2019-07-02 | 黄育新 | A kind of burner for dpf regeneration |
| CN110848740A (en) * | 2018-08-21 | 2020-02-28 | 天纳克汽车经营有限公司 | Exhaust gas burner assembly |
| CN112963225A (en) * | 2021-03-25 | 2021-06-15 | 一汽解放汽车有限公司 | Tail gas heating device and tail gas treatment system |
| CN114475568A (en) * | 2020-11-12 | 2022-05-13 | 郑州宇通客车股份有限公司 | Control method and system for DPF regeneration device of new energy hybrid vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440735A (en) * | 2008-12-15 | 2009-05-27 | 中国人民解放军军事交通学院 | Air discharge heating apparatus, system and method for diesel engine under full operating condition |
| JP2013231374A (en) * | 2012-04-27 | 2013-11-14 | Hino Motors Ltd | Burner for exhaust emission control device |
| CN206753697U (en) * | 2017-02-20 | 2017-12-15 | 天津星洁汽车排放控制系统有限公司 | A kind of multi-cavity integrated combustion blender for diesel engine DPF system |
| CN208106531U (en) * | 2018-03-06 | 2018-11-16 | 黄育新 | A kind of burner for dpf regeneration |
-
2018
- 2018-03-06 CN CN201810181006.1A patent/CN108194169A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440735A (en) * | 2008-12-15 | 2009-05-27 | 中国人民解放军军事交通学院 | Air discharge heating apparatus, system and method for diesel engine under full operating condition |
| JP2013231374A (en) * | 2012-04-27 | 2013-11-14 | Hino Motors Ltd | Burner for exhaust emission control device |
| CN206753697U (en) * | 2017-02-20 | 2017-12-15 | 天津星洁汽车排放控制系统有限公司 | A kind of multi-cavity integrated combustion blender for diesel engine DPF system |
| CN208106531U (en) * | 2018-03-06 | 2018-11-16 | 黄育新 | A kind of burner for dpf regeneration |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848740A (en) * | 2018-08-21 | 2020-02-28 | 天纳克汽车经营有限公司 | Exhaust gas burner assembly |
| CN108999677A (en) * | 2018-08-31 | 2018-12-14 | 中自环保科技股份有限公司 | A kind of burner for dpf regeneration |
| CN109958503A (en) * | 2019-04-06 | 2019-07-02 | 黄育新 | A kind of burner for dpf regeneration |
| CN114475568A (en) * | 2020-11-12 | 2022-05-13 | 郑州宇通客车股份有限公司 | Control method and system for DPF regeneration device of new energy hybrid vehicle |
| CN114475568B (en) * | 2020-11-12 | 2023-07-21 | 宇通客车股份有限公司 | Control method and system for DPF regeneration device of new energy hybrid electric vehicle |
| CN112963225A (en) * | 2021-03-25 | 2021-06-15 | 一汽解放汽车有限公司 | Tail gas heating device and tail gas treatment system |
| CN112963225B (en) * | 2021-03-25 | 2023-02-17 | 一汽解放汽车有限公司 | Tail gas heating device and tail gas treatment system |
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Application publication date: 20180622 |