CN104454086B - A kind of DPF active regeneration system with burner - Google Patents
A kind of DPF active regeneration system with burner Download PDFInfo
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- CN104454086B CN104454086B CN201410743430.2A CN201410743430A CN104454086B CN 104454086 B CN104454086 B CN 104454086B CN 201410743430 A CN201410743430 A CN 201410743430A CN 104454086 B CN104454086 B CN 104454086B
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- burner
- dpf
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- oil pump
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a kind of DPF active regeneration system with burner, burner and electromotor in system pass through single oil circuit respectively, driven by single oil pump, the exhaustor of burner is connected to the exhaust pipe of engine, oxidation catalyzer and microparticles collection device it has been sequentially connected in series on the exhaust pipe of engine, inlet end at oxidation catalyzer and microparticles collection device is respectively equipped with temperature sensor, at air inlet, the outlet side concatenation differential pressure pickup of microparticles collection device；The glow plug that ECU ECU controls in burner oil pump oil spout and burner according to the temperature signal collected and pressure signal ignites, then high-temperature gas is produced, high-temperature gas imports the exhaust pipe of engine and heats the waste gas in exhaustor, waste gas after heating further heats up through DOC oxidation, it is achieved the microgranule regeneration in DPF.Burner in the present invention can work at any time, is not opened by vehicle, stops and other operating mode is limited, it is ensured that the reliability of microgranule regeneration and popularity.
Description
Technical field
The present invention relates to a kind of DPF active regeneration system with burner.
Background technology
Along with the strictest Abgasgesetz, in order to realize the relatively low emission of electromotor, under prior art conditions, need
DOC (Diesel Oxidation Catalyst oxidation catalyzer) and DPF is installed additional in engine exhaust aftertreatment system
(Diesel Particulate Filter particle trapper), i.e. engine exhaust initially enters oxidation catalyzer DOC, warp
After DOC processes, Hydrocarbon and carbon monoxide in aerofluxus generate harmless carbon dioxide with the oxygen reaction of residual in aerofluxus
And water, and release heat and make exhaust-gas temperature rising, then aerofluxus enters particle trapper DPF, through a series of diffusion, interception,
Inertial collision and gravity sedimentation microgranule are captured in DPF, thus realize relatively low emission.
After above-mentioned discharge course uses a period of time, can in particle trapper deposited particles, cause in exhaustor on crushing
Rise, cause engine power and economy to reduce, and then cause deterioration of emission, so to remove the microgranule in catcher in time.
The process i.e. dpf regeneration of particle trapper of microgranule in removal particle trapper, DPF initiative regeneration refers to will by external energy
Gas flow temperature brings up to the initiation temperature of microgranule, and then makes the particle burning of trapping reach to regenerate the purpose of filtering bodies.
At present, traditional active regeneration techniques includes spraying the combustion-supporting regeneration of fuel oil, and electrical heating regenerates, and microwave heating regeneration is red
The several ways such as external heat regenerates, pulse cleaning.The wherein combustion-supporting regeneration of oil spout, is to pass through oil spout in DPF and utilize aerofluxus
Middle remnant oxygen combustion heat release realizes the regenerative system of dpf regeneration.In this regenerative system, burner is connected on engine exhaust
Working in stream, utilize engine exhaust as combustion-supporting gas during burner operation, therefore burning is easily affected by exhaust gas conditions,
Relatively difficult to the tissue of combustion process, may cause burning under cold start-up operating mode and bad cause secondary pollution.
Summary of the invention
It is an object of the invention to as overcoming above-mentioned the deficiencies in the prior art, it is provided that a kind of DPF initiative regeneration system with burner
System, this system is capable of vehicle microgranule regeneration under any driving cycle, realizes relatively low emission simultaneously.
For achieving the above object, the present invention uses following technical proposals:
A kind of DPF active regeneration system with burner, including:
Burner, the fuel pipe entrance point of burner is connected with burner oil pump outfan by oil circuit；Depend on below electromotor
Secondary being serially connected with oil pump for engine, fuel tank, burner oil pump and burner, burner exhaustor connects with the exhaust pipe of engine,
Being sequentially connected in series oxidation catalyzer DOC and microparticles collection device DPF on the exhaust pipe of engine, the exhaust pipe of engine is provided with temperature and passes
Sensor and differential pressure pickup, the outfan of ECU ECU is connected with burner oil pump and burner；ECU is according to the temperature collected
Degree signal and pressure signal send control instruction and pass to the control system of burner, control burner oil pump oil spout and burner
Interior glow plug ignites, and then produces high-temperature gas, and high-temperature gas imports the exhaust pipe of engine and heats the waste gas in exhaustor,
Waste gas after heating further heats up through DOC oxidation and reaches dpf regeneration temperature, it is achieved the microgranule regeneration in DPF；
Described burner, including left and right two parts, left part includes combustor cap, is provided with cone inside combustor cap
Lid, cone covers and is provided with glow plug and tangential admission hole, and cone lid inwall is attached with fuel oil adsorption net, and fresh air is by cutting
Being delivered to internal cavity to air inlet through cone lid and fuel oil adsorption net, the upper end of cone lid is provided with fuel pipe, another of fuel pipe
End is connected with burner oil pump；Right part includes first-stage firing chamber and secondary combustion chamber, and secondary combustion chamber is coated on one-level
Outside combustor, single-stage combustion chamber outer wall is provided with air inlet, uses insulation material bag between secondary combustion chamber and burner housing
Wrap up in.
Described temperature sensor is respectively arranged on inlet end and the inlet end of microparticles collection device DPF of oxidation catalyzer DOC, institute
Two probes stating differential pressure pickup are serially connected in air inlet and the outlet side of microparticles collection device DPF, differential pressure pickup and temperature respectively
The outfan of degree sensor is connected to ECU ECU by transmission line.
Described burner and electromotor, respectively by single oil circuit, are driven by single oil pump and control fuel oil supply, burner
Can depart from electromotor to work alone, the entrance point of described burner oil pump is connected with fuel tank.
Before described burner is arranged on oxidation catalyzer DOC, the exhaustor of burner is communicated on the exhaust pipe of engine, and being used for will
Waste gas heating discharged by electromotor.
Insulation material between described secondary combustion chamber and burner housing uses asbestos layer.
The invention has the beneficial effects as follows:
1. burner is self-existent burner, can realize higher efficiency of combustion, single oil pump drive fuel feeding, have
Independent air distribution system provides brand-new air, and burner can work at any time and ensure that combustion process is controlled, is not travelled work by vehicle
The restriction of condition, can open at vehicle, stop and other any operating mode realizes in DPF microgranule regeneration, it is ensured that the reliability of microgranule regeneration and
Popularity.
2. engine exhaust is heated by the high-temp waste gas that the fuel combustion in burner produces, and aerofluxus aoxidizes heating further through DOC and rises
Temperature, reaches dpf regeneration temperature, enters into DPF and realizes microgranule regeneration, it is achieved that the active to engine exhaust is heated, it is ensured that
The controllability of microgranule regenerated in real time and realizability, reduce regeneration cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the burner in the present invention；
Fig. 2 is the structural representation of the present invention；
Wherein 1. tangential admission hole, 2. cone lid, 3. glow plug, 4. fuel pipe, 5. fuel oil adsorption net, 6. air inlet, 7. one
Level combustor, 8. secondary combustion chamber, 9. asbestos layer, 10. burner housing, 11. combustor cap, 12. electromotors, 13.
Engine oil path, 14. oil pump for engine, 15. fuel tanks, 16. burner oil pumps, 17. burners, 18. burner exhaustors,
19. exhaust pipes of engine, 20. oxidation catalyzer DOC, 21. particle trapper DPF, 22. pressure sensors, 23. temperature
Sensor II, 24. temperature sensors I, 25. ECU ECU.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
As in figure 2 it is shown, a kind of DPF active regeneration system with burner, including burner 17, the fuel oil of burner 17
Pipe entrance point is provided with a burner oil pump 16, has been sequentially connected in series oil pump for engine 14 and fuel tank 15 below electromotor 12, sends out
Motivation 12 is connected with oil pump for engine 14 by engine oil path 13, burner oil pump 16 and burner 17, and electromotor is arranged
Trachea is provided with temperature sensor and differential pressure pickup, the outfan of ECU ECU and burner oil pump 16 and burner 17
Being connected, burner exhaustor 18 communicates with the exhaust pipe of engine 19.
Oxidation catalyzer DOC20, microparticles collection device DPF21, oxidation catalyzer DOC it is sequentially connected in series on the exhaust pipe of engine 19
The inlet end of 20 is provided with a temperature sensor I 24, for measuring the inlet temperature of oxidation catalyzer DOC20, micro particle catching
The inlet end of device DPF21 is provided with temperature sensor II 23, for measuring the inlet temperature of microparticles collection device DPF21.
Two probes of differential pressure pickup 22 are serially connected in the air inlet of microparticles collection device DPF21, outlet side respectively.
As it is shown in figure 1, the burner of the present invention, including left and right two parts, left part includes combustor cap 11, its
Inside is provided with cone lid 2, and cone lid 2 is provided with glow plug 3, and cone lid 2 is provided with tangential admission hole 1, and cone lid inwall adheres to
Having fuel oil adsorption net 5, fresh air can be delivered to internal cavity by tangential admission hole 1 through cone lid 2 and fuel oil adsorption net 5,
Cone lid 2 upper ends are provided with fuel pipe 4, and fuel pipe 4 other end is connected with burner oil pump, and right part includes single-stage combustion
Room 7 and secondary combustion chamber 8, first-stage firing chamber is provided with air inlet 6, uses between secondary combustion chamber 8 and burner housing 10
Insulation material asbestos layer 9 wraps up.
Burner in the present invention be an independent burner apparatus rather than be connected in engine exhaust stream one simple
Burner, this burner has independent air distribution system and oil supply system, and the work process of burner is:
Fuel oil is ejected in fuel oil adsorption net 5 through fuel pipe 4, after the fuel oil volatilization in fuel oil adsorption net 5, with tangential admission
The air mixing that hole 1 and air inlet 6 enter, forms combustion mixture；Glow-plug ignition is to execute to glow plug at time of ignition
With high pressure, making glow plug be brought rapidly up, its maximum temperature can be to 800 DEG C, and the heat that glow plug produces makes in fuel oil adsorption net
Fuel oil volatilization is also ignited, after ignition detector detects and lights a fire successfully, and glow plug power-off；Can in first-stage firing chamber 7
Combustion gaseous mixture is ignited by glow plug 3, and fuel oil and air further mixed combustion in secondary combustion chamber 8, in secondary combustion chamber 8
Outer layer covers has asbestos layer 9, and the heat produced in order to reduce burning dissipates, the high temperature that fuel produces after secondary combustion chamber burns
Waste gas, enters to the exhaust pipe of engine through exhaust combustion chamber manifold, it is achieved heat engine exhaust, makes engine exhaust reach
To microgranule regeneration temperature.
Burner in the present invention controls to include control of starting shooting, and disorderly closedown controls and shutdown controls.
Start control process: during start, burner starts, and it is the most normal that controller detects each operation element, as found to appoint
Why hinder then igniting to stop and by burning display lamp alarm；When element testing fault-free, glow plug is preheated, supply after 10 seconds
The electromagnetic pump electric motor starting of oil, after 60 seconds, detection igniting is the most successful, if loss of ignition, controller sends alarm igniting to be stopped,
If lighting a fire successfully, glow plug power-off, burner enters duty；
Disorderly closedown process: when auto extinguishing in burner running, then control program sends to instruct and automatically again lights a fire；
Detect that a certain element exists fault in burner runs, then alarm of being concurrently out of order shut down by burner；
Shutdown control process: during shutdown, electromagnetic pump fuel cut-off, blowing system continues supplied fresh air, until burner
Being cooled to uniform temperature, burning display lamp extinguishes.
The present invention operationally, the temperature signal that temperature sensor I 24, temperature sensor II 23 will record, differential pressure pickup
22 send the pressure signal recorded to ECU ECU25, ECU ECU25 according to the pressure monitored and temperature signal
Send control instruction；When pressure signal is higher than setting value, and the temperature signal that temperature sensor II 23 records is less than design temperature
Time, ECU ECU25 sends instruction and starts burner oil pump 16 and burner 17, and according to temperature sensor I 24 and
The temperature signal that temperature sensor II 23 records controls the distributive value of burner oil pump, makes burner 17 fuel combustion produce foot
Enough heats；The high-temp waste gas that in burner 17, fuel combustion produces is to electromotor 12 heating exhaust gas, and then aerofluxus is transported to
Oxidation catalyzer DOC20 aoxidizes heat temperature raising further, enters back in microparticles collection device DPF21, it is achieved microgranule regenerates；
When the pressure difference signal of inlet and outlet mouth is higher than setting value less than the temperature signal that setting value or temperature sensor II 23 record, ECU
Control burner and burner oil pump quits work.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not to scope
Limiting, one of ordinary skill in the art should be understood that, on the basis of technical scheme, those skilled in the art are not required to
Various amendments that creative work to be paid can be made or deformation are still within protection scope of the present invention.
Claims (5)
1., with a DPF active regeneration system for burner, it is characterized in that, including:
Burner, the fuel pipe entrance point of burner is connected with burner oil pump outfan by oil circuit；Depend on below electromotor
Secondary being serially connected with oil pump for engine, fuel tank, burner oil pump and burner, burner exhaustor connects with the exhaust pipe of engine,
Being sequentially connected in series oxidation catalyzer DOC and microparticles collection device DPF on the exhaust pipe of engine, the exhaust pipe of engine is provided with temperature and passes
Sensor and differential pressure pickup, the outfan of ECU ECU is connected with burner oil pump and burner；ECU is according to the temperature collected
Degree signal and pressure signal send control instruction and pass to the control system of burner, control burner oil pump oil spout and burner
Interior glow plug ignites, and then produces high-temperature gas, and high-temperature gas imports the exhaust pipe of engine and heats the waste gas in exhaustor,
Waste gas after heating further heats up through DOC oxidation and reaches dpf regeneration temperature, it is achieved the microgranule regeneration in DPF；
Described burner, including left and right two parts, left part includes combustor cap, is provided with cone inside combustor cap
Lid, cone covers and is provided with glow plug and tangential admission hole, and cone lid inwall is attached with fuel oil adsorption net, and fresh air is by cutting
Being delivered to internal cavity to air inlet through cone lid and fuel oil adsorption net, the upper end of cone lid is provided with fuel pipe, another of fuel pipe
End is connected with burner oil pump；Right part includes first-stage firing chamber and secondary combustion chamber and burner housing, secondary firing
It is outdoor that room is coated on single-stage combustion, and first-stage firing chamber point outer wall is provided with air inlet, between secondary combustion chamber and burner housing
Employing insulation material wraps up.
A kind of DPF active regeneration system with burner, is characterized in that, described temperature passes
Sensor is provided with two groups, is separately mounted to inlet end and the inlet end of microparticles collection device DPF of oxidation catalyzer DOC, is used for
Measure oxidation catalyzer DOC and the inlet temperature of microparticles collection device DPF；Two probes of described differential pressure pickup are gone here and there respectively
Being connected on air inlet and the outlet side of microparticles collection device DPF, the outfan of differential pressure pickup and temperature sensor passes through transmission line
It is connected to ECU ECU.
A kind of DPF active regeneration system with burner, is characterized in that, described burner
With electromotor respectively by single oil circuit, single oil pump drive and control fuel oil supply.
A kind of DPF active regeneration system with burner, is characterized in that, described burner is arranged
Before oxidation catalyzer DOC, the exhaustor of burner is communicated on the exhaust pipe of engine, for being added by the discharge waste gas of electromotor
Heat, and reach the inlet temperature conditions of oxidation catalysis.
A kind of DPF active regeneration system with burner, is characterized in that, described two grades of combustions
Burn the insulation material between room and burner housing and use asbestos material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410743430.2A CN104454086B (en) | 2014-12-08 | 2014-12-08 | A kind of DPF active regeneration system with burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743430.2A CN104454086B (en) | 2014-12-08 | 2014-12-08 | A kind of DPF active regeneration system with burner |
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| Publication Number | Publication Date |
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| CN104454086A CN104454086A (en) | 2015-03-25 |
| CN104454086B true CN104454086B (en) | 2017-01-04 |
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| CN105067496A (en) * | 2015-07-24 | 2015-11-18 | 凯龙高科技股份有限公司 | DPF carrier carbon loading amount test apparatus |
| CN105569782A (en) * | 2016-02-17 | 2016-05-11 | 无锡威孚高科技集团股份有限公司 | Evaporative type particulate matter trap regeneration system |
| CN105715331B (en) * | 2016-04-07 | 2018-09-11 | 无锡威孚高科技集团股份有限公司 | Fuel evaporating fluid supply apparatus for dpf regeneration system |
| CN107023366A (en) * | 2017-05-26 | 2017-08-08 | 凯龙高科技股份有限公司 | A kind of control of burner dpf regeneration and diagnostic system for non-rice habitats agricultural machinery |
| CN107152331A (en) * | 2017-06-02 | 2017-09-12 | 中国第汽车股份有限公司 | DPF initiative regeneration state machine control methods based on burner |
| CN107461249B (en) * | 2017-07-05 | 2020-06-19 | 武汉理工大学 | Particle catcher regeneration control system based on CAN communication |
| CN107355289B (en) * | 2017-08-18 | 2023-06-09 | 河北工业大学 | DPF regeneration control system and experiment table of same |
| CN107642391B (en) * | 2017-10-24 | 2023-09-22 | 天津亿科汽车电子有限公司 | Device system integrating DPF thermal regeneration and mechanical regeneration |
| CN107654276A (en) * | 2017-11-10 | 2018-02-02 | 哈尔滨工程大学 | The processing system of ship double fuel or natural gas engine escape methane |
| CN108150261B (en) * | 2017-12-26 | 2020-04-21 | 清华大学苏州汽车研究院（吴江） | DPF active regeneration temperature control method |
| CN108331672B (en) * | 2018-01-31 | 2021-02-09 | 安徽江淮汽车集团股份有限公司 | Engine part test equipment |
| CN108397268A (en) * | 2018-02-24 | 2018-08-14 | 安徽江淮汽车集团股份有限公司 | A kind of exhaust initiative regeneration control system |
| CN108533361A (en) * | 2018-04-27 | 2018-09-14 | 艾蓝腾新材料科技(上海)有限公司 | A kind of independent dpf regeneration system |
| KR102054214B1 (en) * | 2018-10-26 | 2019-12-10 | (주)세라컴 | System for after-treatment of exhaust gas, and method for controlling of the same |
| CN109621721A (en) * | 2018-11-30 | 2019-04-16 | 无锡市杜克环保科技有限公司 | A kind of mobile self-cleaning diesel engine vent gas purification system |
| CN111578297B (en) * | 2020-05-19 | 2022-05-24 | 丰镇市华兴化工有限公司 | Carbonization combustion exhaust treatment device |
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| JP2008075543A (en) * | 2006-09-21 | 2008-04-03 | Hino Motors Ltd | Exhaust emission control device for engine |
| CN201096000Y (en) * | 2007-07-31 | 2008-08-06 | 张智雄 | Diesel engine back combustion heating device |
| CN101975104A (en) * | 2010-11-15 | 2011-02-16 | 中国环境科学研究院 | Oxidation type catalyst-assisting regeneration system for diesel particulate filter (DPF) |
| CN103422946A (en) * | 2012-05-22 | 2013-12-04 | 广西玉柴机器股份有限公司 | DPF controllable regeneration system of engine |
| JP6136510B2 (en) * | 2013-04-16 | 2017-05-31 | いすゞ自動車株式会社 | INJECTION CONTROL METHOD AND INJECTION CONTROL DEVICE |
| CN203655390U (en) * | 2013-10-23 | 2014-06-18 | 贵州黄帝车辆净化器有限公司 | Automatic regeneration system for DPF (diesel particulate filter) |
| CN204299654U (en) * | 2014-12-08 | 2015-04-29 | 山东大学 | A kind of DPF active regeneration system with burner |
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