CN100395435C - Wall flow type net plate apparatus with reverse jet regenerating unit for collecting microparicle discharged by diesel vehicle - Google Patents
Wall flow type net plate apparatus with reverse jet regenerating unit for collecting microparicle discharged by diesel vehicle Download PDFInfo
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- CN100395435C CN100395435C CNB200510080085XA CN200510080085A CN100395435C CN 100395435 C CN100395435 C CN 100395435C CN B200510080085X A CNB200510080085X A CN B200510080085XA CN 200510080085 A CN200510080085 A CN 200510080085A CN 100395435 C CN100395435 C CN 100395435C
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Abstract
The present invention discloses a wall flow type metal mesh plate apparatus of reverse air injection regenerating for collecting fine particle exhausted by diesel vehicle, which belongs to environmental protection equipment. In a casing, composite metal mesh plate filter layers are inclined at a certain angle and connected into WW-shaped structure by a baffle plate. An expanding chamber is arranged between an air inlet and the composite metal mesh plate filter layers, and is connected with a scavenging valve and a secondary charcoal smoke collecting device. A pneumatic disk valve, a reverse blow cavity and a compressed air reservoir are arranged at one side of a gas outlet and are communicated with the casing. Waste gas exhausted by an engine enters the collecting apparatus form an inlet of the collecting apparatus, and particulates in the waste gas is cut and collected after the waste gas passes through a WW-shaped composite metal mesh plate. After the particulates is deposited to certain quantity, air exhaust back pressure ascends, a reverse air injection regenerating device is started to blow accumulated particulates from a filtration body, and the particulates are collected twice and centralized in a collector to be burned. The present invention has the advantages of simple and practical structure, low cost, good purifying effect, good regeneration effect and long life time, which is a good product worthy of popularization.
Description
Technical field
The invention belongs to vehicle tai-gas clean-up equipment scope, particularly a kind of wall-flow type metal otter board diesel engine truck exhaust particle trapper of reverse jet regenerating.
Background technique
Diesel engine is a kind of power plant that have good power character, Economy and endurance quality and be widely used.But the deleterious particle thing of diesel emission is more much higher than petrol engine, and particularly diameter is that 0.01～10 micron subparticle has carcinogenesis, the serious threat health, and this has become one of bottleneck that the restriction diesel engine further uses.At present, particle trapper being installed on the diesel exhaust gas pipeline is a kind of effective and economic post-processing technology.It by means such as interception, deposition with particles agglomerate in the diesel exhaust gas in filter, after particulate accumulation arrives to a certain degree, be removed just so-called regeneration again with means such as burnings.Filtering material that particle trapper adopts and filtration to the performance of whole system (as pressure fall, heat transfer and mass transfer characteristic, intensity and filter efficiency) very big influence arranged.
Currently used filtering material great majority are stupalith, for example steinheilite, mullite and silicon carbide etc., but stupalith has shortcomings such as unsurmountable poor thermal conductivity, anti-mechanical vibration ability difference.Wire gaze with the braiding of FeCrAl heat-resistant and etching-resistant alloy replaces the ceramic-base filtering material, has greater advantage at aspects such as intensity, toughness, thermal conductivity, anti-mechanical vibration and high temperature resistance impact properties.
The research and development focus of regenerated way is a catalytic combustion in recent years.A key factor that influences catalytic regeneration is the area of contact that enlarges catalyzer and particulate matter as far as possible, and this can produce excessive back pressure loss for the wall-flow type honeycomb ceramics that with the surface filtration is dominant mechanism.This Technology Need uses sulphur content to be lower than 50 * 10
-6Diesel oil, and at present China's diesel oil sulphur content is 500 * 10
-6～2000 * 10
-6, cause catalyst poisoning to lose efficacy easily.Under catalyst action, particulate matter is beginning oxidizing fire more than 300 ℃, but the delivery temperature operating mode of modern diesel-oil vehicle often is lower than 300 ℃, and catalyzer is difficult for ignition.At the narrow limitation that hot regeneration method exists, reverse jet regenerating has than remarkable advantages: (1) particulate matter does not burn in filter, has avoided the ubiquitous filter thermal fatigue of hot regeneration method to damage problem; (2) can remove incombustible material in the filter (mainly being the sulphate that dust in air and burning produce), avoid incombustible material to stop up filter.
The diesel engine vent gas particle trapper generally has wall-flow type, axial filtering type and three kinds of filtrations of radial filter formula.The wall-flow type structure is to study at present and most widely used filter structural type, abroad the standard product of existing this structural type.The filter efficiency of this structure is very high, can reach 90% usually, but higher to the requirement of mechanical strength of filtering material.The filtering material of using the axial type filter type generally adopts porous structure at present, filter internal channel winding complex, particulate major sedimentary are at the front end of filter, so the filtering material utilization ratio is lower, and the deposition of particulate causes the very fast obstruction in duct, need carry out frequent regeneration.It is filtering material that radial filters many employing fibrofelts, has good toughness, the filter efficiency advantages of higher, but because the dense distribution of fiber, regenerative process is comparatively slow.
The present invention combines the advantage of various filtering materials, filtration and regenerated way, proposes a kind of wall-flow type metal otter board diesel particulates catcher, and adopts the reverse jet mode that the particulate that is deposited on the metal otter board is carried out pulse cleaning.
Summary of the invention
The purpose of this invention is to provide the particulate matter in the diesel emission tail gas is carried out trap filter, the wall-flow type metal otter board diesel engine truck exhaust particle trapper of a kind of reverse jet regenerating that the minimizing particle emission pollutes, described wall-flow type metal otter board microparticles collection device is that shell 1 two ends are suction port 10 and air outlet 7, shell 1 internal fixation composition metal web plate filter layer 2, and connect into " WW " type structure by front baffle board 5, backboard 6, form gas-entered passageway 3 and exhaust passage 4 on composition metal web plate filter layer 2 both sides; It is characterized in that: between suction port 10 and composition metal web plate filter layer 2 expansion chamber 8 is set, expansion chamber 8 upper ends connect scavenging air valve 11, and the lower end connects soot secondary gathering-device 9; The air outlet 7 of shell 1 is provided with pneumatic dish valve 15 on one side, and connects by blowback chamber 16, electromagnetic impulse valve 14 and compressed air tank 13 between filter layer 2 and pneumatic dish valve 15.
Described filter layer 2 is at the concrete discharge amount of motor, is composited by the wire web plate coupling of 6～16 layers different meshes.
Described composition metal web plate filter layer 2 can be installed 6～10 in catcher.
After the invention has the beneficial effects as follows that engine exhaust enters microparticles collection device, the particle in the exhaust is trapped within on the filter layer, thereby realizes reducing exhaust pollution, the purpose of protection environment.Adopt the manufacture cost of wire gaze lower; Simple in structure, be easy to make; The filter efficiency of particulate can reach more than 70%; The exhaust back pressure loss is little, capture capacity height; The mechanical strength height is easy to adopt the pulse cleaning technology, favorable regeneration effect.
Description of drawings
Fig. 1 is the structural representation of the wall-flow type metal otter board diesel particulates catcher of reverse jet regenerating device.
Fig. 2 is a kind of schematic representation of expansion chamber internal structure.
Embodiment
The invention provides the particulate matter in the diesel emission tail gas is carried out trap filter, the wall-flow type metal otter board diesel engine truck exhaust particle trapper of a kind of reverse jet regenerating that the minimizing particle emission pollutes.In the structural representation of the wall-flow type metal otter board diesel particulates catcher of reverse jet regenerating device shown in Figure 1, shell 1 two ends are suction port 10 and air outlet 7, in the shell 1, composition metal web plate filter layer 2 tilts at a certain angle, and connect into " WW " type structure by front baffle board 5, backboard 6, be fixed in the shell 1; Form gas-entered passageway 3 and exhaust passage 4 on composition metal web plate filter layer 2 both sides; Between suction port 10 and composition metal web plate filter layer 2 expansion chamber 8 is set, expansion chamber 8 upper ends connect scavenging air valve 11, and the lower end connects soot secondary gathering-device 9; The air outlet 7 of shell 1 is provided with pneumatic dish valve 15 on one side, and connects by blowback chamber 16, electromagnetic impulse valve 14 and compressed air tank 13 between filter layer 2 and pneumatic dish valve 15.
Figure 2 shows that a kind of schematic representation of expansion chamber internal structure.At the fixing diaphragm 17 of the internal chamber of expansion chamber 8, expansion chamber 8 is divided into three chambers, its expansion chamber is to be used for reducing compressed-air actuated pressure and flow velocity.The internal structure of expansion chamber can be a various ways, but its basic principle all is to utilize dividing plate, guide swiftly flowing blowback air-flow, make the blowback air-flow can arrive the expansion chamber various piece, not directly to flow to scavenging air valve, thereby the enhancing scavenge effect makes full use of the space of expansion chamber, thereby improves regeneration efficiency.High velocity air is through reduction of speed, finish scavenging process after, enter atmosphere after filtration.
Described composition metal web plate filter layer 2 can be installed 6～10 in catcher.
At the concrete discharge capacity of motor, can mate by the order number and the number of plies of regulating wire gaze.Generally the wire web plate coupling by 6～16 layers different meshes is composited.Engine exhaust passes through gas-entered passageway 3, composition metal web plate filter layer 2, exhaust passage 4 successively through the expansion chamber 8 that suction port 10 enters microparticles collection device; particle in the exhaust is trapped within on the filter layer 2; thereby realize reducing exhaust pollution, the purpose of protection environment.
After the particulate matter deposition reaches some, exhaust back pressure rises, automatic controller 12 control scavenging air valves 11, electromagnetic impulse valve 14 start the reverse jet pulse cleaning, in the filter filter process, exhaust enters expansion chamber 8, because under the normal exhaust state, scavenging air valve is a normally off, pneumatic dish valve 15 is a normally open, and most blast airs are body 2 after filtration, is discharged in the atmosphere through pneumatic dish valve 15.When filter need be regenerated, pneumatic dish valve 15 cut out, and scavenging air valve 11 is opened, and most of exhaust directly enters atmosphere from scavenging air valve 11.When electromagnetic impulse valve 14 is opened, pressurized air from the blowback chamber 16 of gas cylinder 13 by filter layer 2 rear ends from spraying into filter layer 2 in the opposite direction with blast air, scavenging air valve 11 still is held open state, when pressurized gas is extruded the gas in the original expansion chamber 8, the particulate matter of accumulation is blown out from filter layer 2, scavenging air valve 11 cuts out at once, then pressurized air is discharged in the atmosphere after wire gaze filters, soot is then deposited collection in secondary gathering-device 9, and the regenerative process of filtration is finished in concentrated combustion in trap.Above-mentioned filter layer 2 adopts welding manner to be fixed on the shell 1.Filtering material is the multilayer composite metal web plate, is stacked in certain sequence by the wire gaze of different density degree, and repressed, sintering or riveted joint form.
Claims (1)
1. the wall-flow type metal otter board diesel engine truck exhaust particle trapper of a reverse jet regenerating, shell (1) two ends are suction port (10) and air outlet (7), between suction port (10) and composition metal web plate filter layer (2), expansion chamber (8) is set, expansion chamber (8) upper end connects scavenging air valve (11), and the lower end connects soot secondary gathering-device (9); Pneumatic dish valve (15) is set in air outlet (7), and between filter layer (2) and pneumatic dish valve (15), connects by blowback chamber (16), electromagnetic impulse valve (14) and compressed air tank (13); It is characterized in that: shell (1) internal fixation composition metal web plate filter layer (2), and composition metal web plate filter layer (2) is connected into " WW " type structure by front baffle board (5), backboard (6), form gas-entered passageway (3) and exhaust passage (4) on both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510080085XA CN100395435C (en) | 2005-06-29 | 2005-06-29 | Wall flow type net plate apparatus with reverse jet regenerating unit for collecting microparicle discharged by diesel vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510080085XA CN100395435C (en) | 2005-06-29 | 2005-06-29 | Wall flow type net plate apparatus with reverse jet regenerating unit for collecting microparicle discharged by diesel vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1693682A CN1693682A (en) | 2005-11-09 |
| CN100395435C true CN100395435C (en) | 2008-06-18 |
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| CNB200510080085XA Expired - Fee Related CN100395435C (en) | 2005-06-29 | 2005-06-29 | Wall flow type net plate apparatus with reverse jet regenerating unit for collecting microparicle discharged by diesel vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477885A (en) * | 2010-11-21 | 2012-05-30 | 高玉琴 | Particle filtering and regenerating device |
Families Citing this family (18)
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| US7874148B2 (en) * | 2007-03-15 | 2011-01-25 | Deere & Company | Regeneration system and method for particulate traps |
| KR20110056137A (en) * | 2009-11-20 | 2011-05-26 | 주식회사 알란텀 | Egr gas filtering system |
| CN101943042A (en) * | 2010-08-16 | 2011-01-12 | 杨文辉 | Tail gas filtering and adjusting device for motor vehicles |
| CN103334817B (en) * | 2013-07-02 | 2016-03-02 | 武汉纺织大学 | A kind of diesel engine exhaust gas purification device |
| CN103670606B (en) * | 2013-12-09 | 2016-01-20 | 浙江大学 | Separation-type reverse air injection regenerative diesel engine exhaust particle filter device |
| CA2954013A1 (en) * | 2014-08-25 | 2016-03-03 | Haldor Topsoe A/S | Method and system for the removal of particulate matter and heavy metals from engine exhaust gas |
| CN105569781B (en) * | 2015-12-03 | 2017-12-01 | 武汉华威专用汽车检测有限责任公司 | A kind of vehicle-mounted ashes of diesel engine particle catcher remove system and its control method |
| CN106703943A (en) * | 2017-02-17 | 2017-05-24 | 西华大学 | Back-flushing regenerating device for diesel engine particulate trap |
| CN107587921A (en) * | 2017-09-09 | 2018-01-16 | 汤刚健 | Adding air cohesion filtration method with cooling replaces ternary catalyzing unit to remove vehicle exhaust |
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| CN111434897A (en) * | 2019-01-15 | 2020-07-21 | 南通亚泰工程技术有限公司 | Efficient energy-saving intelligent tail gas particle capturing and self-cleaning device and working method thereof |
| CN112594033B (en) * | 2020-12-01 | 2022-05-20 | 溢通环保科技（莆田）有限公司 | Diesel engine tail gas suspended solid clean-up system |
| CN112594043B (en) * | 2020-12-01 | 2022-06-17 | 溢通环保科技（莆田）有限公司 | Method for detecting suspended matters in tail gas treatment of diesel engine |
| CN112943424A (en) * | 2021-01-22 | 2021-06-11 | 中国船舶重工集团公司第七一一研究所 | Particle trapping and regenerating system and control method thereof |
| CN113006915B (en) * | 2021-03-26 | 2022-08-02 | 重庆汽车消声器有限责任公司 | Noise-reduction environment-friendly silencer for small-tonnage internal combustion engine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1278454A (en) * | 2000-07-07 | 2001-01-03 | 清华大学 | Filter material and filter for reverse spray to regenerate carbon smoke filter |
| CN2459443Y (en) * | 2000-07-07 | 2001-11-14 | 清华大学 | Carbon smoke filter for counter-jetting reproducing diesel engine |
| CN1436924A (en) * | 2003-02-17 | 2003-08-20 | 清华大学 | Multilayer composite metal wire screen filter material for tail gas particle arrester of diesel oil vehicle |
| CN2572010Y (en) * | 2002-07-31 | 2003-09-10 | 李清华 | Carbon smoke pollution purifier for diesel engine |
| CN1464936A (en) * | 2001-08-08 | 2003-12-31 | 丰田自动车株式会社 | An exhaust gas purification device |
| CN1541299A (en) * | 2001-08-08 | 2004-10-27 | �����Զ�����ʽ���� | Exhaust gas purifying appts. |
-
2005
- 2005-06-29 CN CNB200510080085XA patent/CN100395435C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1278454A (en) * | 2000-07-07 | 2001-01-03 | 清华大学 | Filter material and filter for reverse spray to regenerate carbon smoke filter |
| CN2459443Y (en) * | 2000-07-07 | 2001-11-14 | 清华大学 | Carbon smoke filter for counter-jetting reproducing diesel engine |
| CN1464936A (en) * | 2001-08-08 | 2003-12-31 | 丰田自动车株式会社 | An exhaust gas purification device |
| CN1541299A (en) * | 2001-08-08 | 2004-10-27 | �����Զ�����ʽ���� | Exhaust gas purifying appts. |
| CN2572010Y (en) * | 2002-07-31 | 2003-09-10 | 李清华 | Carbon smoke pollution purifier for diesel engine |
| CN1436924A (en) * | 2003-02-17 | 2003-08-20 | 清华大学 | Multilayer composite metal wire screen filter material for tail gas particle arrester of diesel oil vehicle |
Non-Patent Citations (6)
| Title |
|---|
| 柴油机微粒金属丝网过滤体反吹再生系统性能的研究. 宁智，资新运，张春润，刘建华，潘显钟，宋波.机械工程学报，第40卷第8期. 2004 |
| 柴油机微粒金属丝网过滤体反吹再生系统性能的研究. 宁智，资新运，张春润，刘建华，潘显钟，宋波.机械工程学报，第40卷第8期. 2004 * |
| 柴油机金属丝网过滤体特性及反吹再生的初步研究. 宁智，资新运，张春润，刘建华，况春江.机械工程学报，第39卷第7期. 2003 |
| 柴油机金属丝网过滤体特性及反吹再生的初步研究. 宁智，资新运，张春润，刘建华，况春江.机械工程学报，第39卷第7期. 2003 * |
| 柴油车微粒捕捉器逆向喷气再生的关键技术. 资新运，宁智，欧阳明高.内燃机工程，第23卷第6期. 2002 |
| 柴油车微粒捕捉器逆向喷气再生的关键技术. 资新运，宁智，欧阳明高.内燃机工程，第23卷第6期. 2002 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477885A (en) * | 2010-11-21 | 2012-05-30 | 高玉琴 | Particle filtering and regenerating device |
| CN102477885B (en) * | 2010-11-21 | 2014-09-10 | 高玉琴 | Particle filtering and regenerating device |
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