CN204041168U - The combustion-supporting reclaimer of diesel engine particle catcher return flow type oil spout - Google Patents
The combustion-supporting reclaimer of diesel engine particle catcher return flow type oil spout Download PDFInfo
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- CN204041168U CN204041168U CN201420512760.6U CN201420512760U CN204041168U CN 204041168 U CN204041168 U CN 204041168U CN 201420512760 U CN201420512760 U CN 201420512760U CN 204041168 U CN204041168 U CN 204041168U
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- filter
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- reclaimer
- fresh air
- mixed gas
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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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Abstract
The utility model discloses the combustion-supporting reclaimer of a kind of diesel engine particle catcher return flow type oil spout.The utility model have employed the form of eddy flow and sudden expansion compound, two suction tude and the tangent supply fresh air of inflammable mixture mixing chamber, air demand is regulated according to different Operating condition adjustment Flow valve, stable rotation mixed gas can be produced at chamber front end, be conducive to fuel-oil atmozation and mix being incorporated in generation recirculating zone, mixing chamber center portion, stablize mixing chamber temperature and promote that mixed gas mixes sustainable supply firing chamber simultaneously, firing chamber adopts sudden expansion form can stablize recirculating zone in the generation of sudden expansion shoulder simultaneously, close and mixed gas energy sustained ignition after ensureing plug ignition, the extending plug life-span also improves flame stability, simultaneously the having to be beneficial to and ensure that flame is better adherent and have good flame degree of filling in firing chamber of recirculating zone, prevent non-uniform temperature and burn out ceramic filtering body, and organize Combustion Energy to reduce secondary pollution degree preferably.The utility model is provided with oxygen concentration sensor in combustion gas mixing section and collects mixed gas information, in filter front-end and back-end, temperature and pressure sensor is all housed, detect the data such as reclaimer temperature and pressure, sensing data transfers to ECU process and judges to control regenerative process, has economy and facilitates the advantages such as stability and safety.
Description
Technical field
The utility model relates to diesel particulates catcher and oil spout supplies gas firing reclaimer and sensing detection control system, belongs to motor discharge and Environmental capacity field.
Background technique
It is high that diesel engine has the thermal efficiency, adaptability is good, the advantages such as power range is wide, at vehicle, the aspect application such as construction plant are very extensive, it is the trend of current development of automobile that diesel oil of vehicle ratio improves further, but higher particulate matter (PM) emission level is one of key issue of restriction diesel engine development, the diameter of particle of its discharge is little, lightweight, can be suspended in air for a long time, greatly endanger the health of the mankind, increasingly serious with Environmental Protection Situation, the Particulate Emission problem of diesel engine has caused the enough attention of people, its effective control is become of crucial importance in current diesel engine development process and has had the problem of challenge, in current proposed each PM post processing mode, the PM that particle trapper (DPF) is considered to a kind of very with prospects cuts down mode.The focus that its regeneration issues has also become people to study, in many regenerated ways, the combustion-supporting regeneration techniques of oil spout does not limit by oil quality, burner adopts the fuel identical with diesel engine, do not need the power consuming automobile batteries, and there is no catalytic regeneration, the passive regeneration technology such as cyclic regeneration are for the requirement of sulphur content in diesel oil lower than certain value, and the ripe part of each parts of reclaimer is many, entrucking does not need to do too large change to motor original structure when using, that a kind of applicability is good, the regeneration techniques of efficiency height and good reliability, the current practical subject matter of the combustion-supporting regeneration techniques of oil spout that affects is integrity problem in filter regeneration process.
Summary of the invention
The utility model devises the combustion-supporting reclaimer of a kind of diesel engine particle catcher return flow type oil spout, its advance is mainly reflected in: adopt the form of sectional mixed gas mixing section, inflammable mixture combustion section and micro particle catching section to be installed together, there are component few, structure is simple, for ease of maintenaince safeguard and change, the advantages such as highly versatile; The mutual compound in recirculating zone that FAI Fresh Air Intake pipe adopts double branch pipe and mixing chamber tangent generation swirling recirculation flow district and firing chamber sudden expansion structure to produce, improve mixability and the temperature of mixed gas, reduce regeneration temperature and wave properties, form the persistent loop having fired mixed gas and unburned mixture to replace in recirculating zone, ensure to have fired that mixed gas is automatic continuous lights unburned mixture, improve regeneration efficiency and safety reliability, to vehicle-mounted diesel engine and fixed installation diesel engine unit etc., all there is great actual application value.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: the combustion-supporting reclaimer of a kind of diesel engine particle catcher return flow type oil spout, described air-fuel mixture room section, inflammable mixture combustion section and filter section adopt three sections of assembling forms, be connected with uniform some bolt fasteners by flange plate, centre installs the sealing of asbestos seal bed course additional, at air-fuel mixture room section apical position, electronic fuel injection is installed, according to the position of the design fresh air supply arms such as reflux area length in oil atomizing length and mixing chamber, its diameter oxygen-supplying amount needed for engine displacement and filter regeneration calculates design, mixing chamber diameter and gas mixture passage are equally according to this parameter designing, near recirculating zone end and mixing chamber terminal position, oxygen concentration sensor is installed and detects mixed gas oxygen concentration, high-energy sparking plug is installed in sudden expansion position, firing chamber and lights inflammable mixture, and at the engine exhaust entrance certain position that staggers, filter head temperature is installed, pressure transducer, the temperature of installing with filter rear end, pressure transducer respectively combo detects regenerative process and regeneration opportunity parameter, when filter internal pressure reaches certain value, fresh air flow valve is opened, oil nozzle oil spout simultaneously, high-energy sparking plug igniting is ignited inflammable mixture, carry out filter regeneration, filter adopts ceramic wall flow filter, diameter and volume are selected according to engine displacement and filter specifications design, and install certain thickness insulating pad layer additional between filter housing.
Said structure is further limited, described air-fuel mixture room is high temperature resistant stainless steel pipe, diameter forms stable condition design according to regeneration oil gas combined amount and eddy flow, length produces according to eddy flow stablizes the parameter designing such as reflux area length and oil atomizing section length, oxygen concentration sensor is arranged on the position of air-fuel mixture room near end certain distance, is convenient to consider recirculating zone and has fired and unburned mixture oxygen concentration.
Said structure is further limited, it is cylindrical that described firing chamber adopts high temperature resistant stainless steel coiled sheet to make equally, length can according to parameter designing such as spatial position, chassis or inflammable mixture flame length, cross certain distance position, top, vertical axis plan range firing chamber perforate welding engine exhaust access conduit, opening diameter is according to engine exhaust pipe diameter design, and both are by flange plate and bolton.
Said structure is further limited, described filter head temperature, pressure transducer adopt heat resistant type sensor, image data fast and stable is reliable, two sensors all need just to stagger certain distance to position with engine exhaust entrance, produce interference to avoid engine high-temperature waste gas to data capture.
Said structure is further limited, described high-energy sparking plug is the spark plug can lighting diesel oil mixed gas, powered by vehicle power, mounting point is in firing chamber sudden expansion shoulder, existence due to sudden expansion makes mixed gas form the recirculating zone circulated in this region, after the mixed gas lighted entrainments and enters this region, unburned mixture is lighted in heating, forms continued stable combustion.
Said structure is further limited, described ceramic filtering body is ceramic wall flow filter, trap particles to a certain extent after, in filter, back pressure raises, detected by pressure transducer before and after filter, judge regeneration opportunity, certain thickness insulating pad layer is installed additional between filter and housing, prevent filter housing from causing filter to produce thermal stress and the destructions such as fracture because of non-uniform temperature, meanwhile, three sections of joints and other sealing positions all need to adopt asbestos seal bed course or the sealing of copper sheet bed course.
Said structure is further limited, described ceramic filtering body location is uniformly distributed 6-8 with fixing bolt along filter housing circumference, when taking off screw rod, ceramic filtering body axially can move along housing, and conveniently take off replacing filter core, tighten screw rod after installing ceramic filtering body core and insulating pad layer and can stop the axial motion of filter core.
The beneficial effect adopting technique scheme to produce is: the utility model adopts the combustion-supporting reclaimer of oil spout of sectional, be convenient to carry out maintenance maintenance and replacing to oil nozzle, sensor, Flow valve, outlet pipe, ceramic filtering body and bed course, the few raw material of component number easily obtain, structure is simple, highly versatile, good airproof performance; Multiple sensor is installed and gathers reclaimer internal data, to judging that regeneration opportunity and the monitoring adjustment to regenerative process have good effect, and by judging regrowth dynamics process adjusting charge flow rate valve opening, fuel injection quantity, injection pressure etc., to ensureing that best and the best and good flame degree of filling of combustion stability and suitable combustion temperature the control of mixed gas mixability is all significant, thus improve regeneration efficiency and reliability; FAI Fresh Air Intake pipe position considers according to oil atomizing length and reflux area length etc. and determines a suitable scope, the primary atomization of oil atomizing and secondary-atomizing and mixing chamber recirculating zone effect are taken into account, improve mixed gas mixability, reduce secondary pollution degree and the flame temperature of burning generation, reduction ceramic filtering body is sintered to scorification or hardening cracks significant; The compound of mixing chamber recirculating zone and dump combustion chamber recirculating zone is taken into account in high-energy sparking plug position, can guarantee section fired mixed gas be back to mixing chamber to mixed gas heating promote mixing, can ensure that again fired mixed gas continues reliable ignition unburned mixture in firing chamber, improve the stationarity of regenerative process, to the thermal shock of reduction combustion gas to ceramic filtering body, there is important function, improve reliable measuring data and the stability of sensor element simultaneously, be of value to the monitoring instructing regenerative process.
Accompanying drawing explanation
Fig. 1 is assembly cut-away section plan view of the present utility model.
Fig. 2 is air-fuel mixture room of the present utility model and fresh air air feed section left view.
Fig. 3 is inflammable mixture combustion section left view of the present utility model.
Fig. 4 is particle trapper section left view of the present utility model.
Wherein: 1. FAI Fresh Air Intake pipeline a; 2. combustion-supporting oil nozzle; 3. air-fuel mixture room; 4. FAI Fresh Air Intake pipeline b; 5. oxygen concentration sensor; 6. high-energy sparking plug; 7. filter head temperature sensor; 8. filter forefront pressure sensor; 9. asbestos seal bed course; 10. filter location and fixing bolt; 11. filter sections; 12. filter rear end pressure transducers; 13. data conductor; 14. exhaust manifold outlets; 15. filter rear end temperature transducers; 16. bolt fastening components; 17. engine exhaust access tubes; 18. inflammable mixture firing chambers; 19. link bolt hole; 20. fresh air supply arm a; 21. fresh air supply arm b; 22. Flow valves; 23. fresh air supply mains; 24. mixed gas mixing chamber passages; 25. engine exhaust pipe; 26. ceramic filtering body bed courses; 27. ceramic wall flow filters.
Specific embodiments
With reference to accompanying drawing 1, the utility model is specifically related to a kind of diesel engine particle catcher eddy flow and the combustion-supporting reclaimer of sudden expansion compound return flow type oil spout, utilize FAI Fresh Air Intake pipe and the tangent generation swirling eddy of mixed gas mixing chamber, while promoting air-fuel mixture, stable recirculating zone is formed at mixing chamber axis part, the mixed gas burnt is involved in, unburned mixture is preheated, promote that mixed gas enters smooth combustion behind firing chamber, be simultaneously sudden expansion structure at mixing chamber and main combustion chamber connection part, also stable recirculating zone is formed at this position, this position reflux movement fires mixed gas while can be closed after high-energy sparking plug is lighted a fire successfully, to the unburned mixture sustained ignition flowing into this region, form reliable and stable burning, and by Flow valve and temperature, pressure, the live signal of the sensors such as oxygen concentration detects, transfer to ECU and judge regeneration situation, guarantee regenerative process is reliable and stable, there is good Economy, and structure is simple, easy accessibility, safe and reliable.
Concrete structure of the present utility model, as shown in accompanying drawing 1-4, comprising: FAI Fresh Air Intake pipeline a (1), combustion-supporting oil nozzle (2), air-fuel mixture room (3), FAI Fresh Air Intake pipeline b (4), oxygen concentration sensor (5), high-energy sparking plug (6), filter head temperature sensor (7), filter forefront pressure sensor (8), asbestos seal bed course (9), filter location and fixing bolt (10), filter section (11), filter rear end pressure transducer (12), data conductor (13), exhaust manifold outlet (14), filter rear end temperature transducer (15), bolt fastening component (16), engine exhaust access tube (17), inflammable mixture firing chamber (18), link bolt hole (19), fresh air supply arm a (20), fresh air supply arm b (21), Flow valve (22), fresh air supply main (23), mixed gas circulation and return flow line (24), engine exhaust pipe (25), ceramic filtering body bed course (26), the component such as ceramic wall flow filter (27).
FAI Fresh Air Intake pipeline a (1) in the utility model and FAI Fresh Air Intake pipeline b (4) be a pair with the welded stainless steel pipe of the tangent and axial space in air-fuel mixture room (3) perpendicular to inflammable mixture firing chamber (18) axis, in air-fuel mixture room (3) top perforate, combustion-supporting oil nozzle (2) is installed, install oxygen concentration sensor (5) in air-fuel mixture room (3) near terminal position, this part utilizes bolt to be connected on inflammable mixture firing chamber (18) by link bolt hole (19).
Inflammable mixture firing chamber (18) in the utility model be connected with air-fuel mixture room (3) position be mixed gas circulate with return flow line (24), this passage and inflammable mixture firing chamber (18) main combustion chamber form sudden expansion structure, this section installs high-energy sparking plug (6), filter head temperature sensor (7), filter forefront pressure sensor (8), engine exhaust access tube (17) is welded on inflammable mixture firing chamber (18), the two axis intersects and vertical, this section is fastened by bolts assembly (16) and is connected with filter section (11), centre adds asbestos seal bed course (9) and is sealed.
Filter section (11) internal mounting wall streaming ceramic filtering body (27) in the utility model, and isolated with filter shell by the ceramic filtering body bed course (26) of adherent installation, front end edge circumference uniform 6-8 filter location and fixing bolt (10), stop that ceramic wall flow filter (27) and the ceramic filtering body bed course (26) of installation move axially, filter section (11) rear end is the contraction section at about 140 °, inclination angle, it installs filter rear end pressure transducer (12), filter rear end temperature transducer (15), tail gas after filtration discharges reclaimer by exhaust manifold outlet (14).
The utility model adopts two fresh air services, and be designed to form tangent with air-fuel mixture room, make air-flow in mixing chamber, produce swirling recirculation flow district, be conducive to fully carrying out of oil atomizing, the existence of recirculating zone simultaneously makes the mixed gas of combustion of part higher temperature be back to mixing heating indoor inflammable mixture, further promotion mixed gas diffusion mixing, and play the effect of preheating mixed gas, significant to guarantee mixed gas reliable ignition, combustible gas section is designed to sudden expansion form, can produce at sudden expansion shoulder and stablize recirculating zone, with mixing chamber recirculating zone compound, after high-energy sparking plug lights regional area inflammable mixture, the existence of backflow can form the cycle alternation circulation of not firing and having fired mixed gas, entrainment into this recirculating zone by firing mixed gas, light this region unburned mixture, improve the life-span of spark plug, close spark plug simultaneously and can save it for electric flux, the existence of circulation ensure that carrying out continually and steadily of burning, to the thermal shock of reduction combustion generated gas to ceramic filtering body, there is good effect, open firing chamber can form good flame degree of filling, improve regeneration efficiency, reduce secondary pollution degree, reclaimer inner case is detected in real time by corresponding sensor, regeneration opportunity and regenerative process are controlled, improve reliability and the automaticity of regeneration, reduce regeneration times, to raising its Economy and using value significant.
Claims (5)
1. the combustion-supporting reclaimer of diesel engine particle catcher return flow type oil spout, FAI Fresh Air Intake pipeline a (1) and FAI Fresh Air Intake pipeline b (4) are the parallel tubule of axis co-planar, both axis are vertical with air-fuel mixture room (3) axial space, two suction tude are simultaneously tangent with air-fuel mixture room (3), air intake branch supplies arm a (20) with fresh air respectively, fresh air supply arm b (21) is connected with clamping bolt by flange plate, gas manifold end installs Flow valve (22), be connected with fresh air supply main (23), combustion-supporting oil nozzle (2) is vertically mounted on air-fuel mixture room (3) center, top, near terminal position, oxygen concentration sensor (5) is installed in air-fuel mixture room (3), air-fuel mixture room (3) is connected with inflammable mixture firing chamber (18) with link bolt hole (19) by flange plate, inflammable mixture flows into inflammable mixture firing chamber (18) with return flow line (24) from air-fuel mixture room (3) by mixed gas circulation, in inflammable mixture firing chamber (18) sudden expansion shoulder position, high-energy sparking plug (6) is installed, middle part or end install filter head temperature sensor (7), filter forefront pressure sensor (8), the certain position that staggers is installed engine exhaust access tube (17) and is connected with engine exhaust pipe (25) with clamping bolt by flange plate, inflammable mixture firing chamber (18) is connected with filter section (11) with bolt fastening component (16) by flange plate, centre installs asbestos seal bed course (9) additional, locate in filter section (11) front end edge circumference uniform 6-8 filter location with fixing bolt (10) and fix ceramic wall flow filter (27), install ceramic filtering body bed course (26) between filter section (11) shell and ceramic wall flow filter (27) additional to isolate, in filter section (11) reducing section, filter rear end pressure transducer (12) and filter rear end temperature transducer (15) are installed, be connected with ECU by data conductor (13), filter section (11) end exports (14) with bolt fastener with exhaust manifold by flange plate and is connected.
2. the combustion-supporting reclaimer of diesel engine particle catcher return flow type according to claim 1 oil spout, it is characterized in that: described FAI Fresh Air Intake pipeline a (1) and FAI Fresh Air Intake pipeline b (4) is equal diameter pipe, its diameter is according to engine displacement, filter volume and regeneration duration etc. consider the required oxygen amount design of regeneration, by supplying arm a (20) with fresh air, fresh air supply arm b (21) is connected, and control the parameters such as flow velocity through Flow valve (22), with air-fuel mixture room (3) diameter, the parameter coordination designs such as length.
3. the combustion-supporting reclaimer of diesel engine particle catcher return flow type according to claim 1 oil spout, it is characterized in that: described oxygen concentration sensor (5) mounting point considers the oxygen content of firing mixed gas and unburned mixture, being arranged on the recirculating zone section of beginning is that air-fuel mixture room (3) is near stub area.
4. the combustion-supporting reclaimer of diesel engine particle catcher return flow type according to claim 1 oil spout, it is characterized in that: described high-energy sparking plug (6) consider fire mixed gas and unburned mixture entrainment mixed zone, ensure constant ignition, install in inflammable mixture firing chamber (18) sudden expansion shoulder position, at middle part or end, filter head temperature sensor (7) is installed, filter forefront pressure sensor (8) keeps at a certain distance away, and avoid just preventing the data surveyed higher to engine exhaust access tube (17).
5. the combustion-supporting reclaimer of diesel engine particle catcher return flow type according to claim 1 oil spout, it is characterized in that: described filter location is individual along the circumferential uniform 6-8 of filter section (11) with fixing bolt (10), pull down bolt replaceable or maintenance ceramic wall flow filter (27), tight a bolt and can fix and locate ceramic wall flow filter (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512760.6U CN204041168U (en) | 2014-09-09 | 2014-09-09 | The combustion-supporting reclaimer of diesel engine particle catcher return flow type oil spout |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420512760.6U CN204041168U (en) | 2014-09-09 | 2014-09-09 | The combustion-supporting reclaimer of diesel engine particle catcher return flow type oil spout |
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| CN204041168U true CN204041168U (en) | 2014-12-24 |
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| CN201420512760.6U Expired - Fee Related CN204041168U (en) | 2014-09-09 | 2014-09-09 | The combustion-supporting reclaimer of diesel engine particle catcher return flow type oil spout |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990075A (en) * | 2015-08-04 | 2015-10-21 | 邵阳学院 | Combustor with adjustable flame |
| CN113982731A (en) * | 2021-10-14 | 2022-01-28 | 中国舰船研究设计中心 | Carbon-removing, dust-removing and noise-eliminating integrated device for marine diesel engine |
| CN114184560A (en) * | 2021-11-09 | 2022-03-15 | 天津大学 | Spectral measurement device based on gas rapid mixing |
| CN114810383A (en) * | 2022-05-05 | 2022-07-29 | 苏州清研博浩汽车科技有限公司 | Engine combustion parameter adjusting method and device and electronic equipment |
| CN115142937A (en) * | 2022-07-07 | 2022-10-04 | 中国煤炭科工集团太原研究院有限公司 | Regeneration and control method of intelligent composite particle trapping device at low exhaust temperature for mine |
-
2014
- 2014-09-09 CN CN201420512760.6U patent/CN204041168U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990075A (en) * | 2015-08-04 | 2015-10-21 | 邵阳学院 | Combustor with adjustable flame |
| CN104990075B (en) * | 2015-08-04 | 2017-04-19 | 邵阳学院 | Combustor with adjustable flame |
| CN113982731A (en) * | 2021-10-14 | 2022-01-28 | 中国舰船研究设计中心 | Carbon-removing, dust-removing and noise-eliminating integrated device for marine diesel engine |
| CN113982731B (en) * | 2021-10-14 | 2024-03-08 | 中国舰船研究设计中心 | Carbon removing, dust removing and silencing integrated device for marine diesel engine |
| CN114184560A (en) * | 2021-11-09 | 2022-03-15 | 天津大学 | Spectral measurement device based on gas rapid mixing |
| CN114810383A (en) * | 2022-05-05 | 2022-07-29 | 苏州清研博浩汽车科技有限公司 | Engine combustion parameter adjusting method and device and electronic equipment |
| CN115142937A (en) * | 2022-07-07 | 2022-10-04 | 中国煤炭科工集团太原研究院有限公司 | Regeneration and control method of intelligent composite particle trapping device at low exhaust temperature for mine |
| CN115142937B (en) * | 2022-07-07 | 2024-05-17 | 中国煤炭科工集团太原研究院有限公司 | Regeneration and control method of intelligent composite particle trapping device for mine at low exhaust temperature |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20160909 |