CN109322726A - Exhaust gas purification and noise elimination set composite - Google Patents

Exhaust gas purification and noise elimination set composite Download PDF

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Publication number
CN109322726A
CN109322726A CN201811328318.7A CN201811328318A CN109322726A CN 109322726 A CN109322726 A CN 109322726A CN 201811328318 A CN201811328318 A CN 201811328318A CN 109322726 A CN109322726 A CN 109322726A
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CN
China
Prior art keywords
exhaust gas
silencer
exhaust
channel
section
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
Application number
CN201811328318.7A
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Chinese (zh)
Inventor
王万川
范丛山
王武林
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Yangzhou Polytechnic Institute
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Yangzhou Polytechnic Institute
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Filing date
Publication date
Application filed by Yangzhou Polytechnic Institute filed Critical Yangzhou Polytechnic Institute
Priority to CN201811328318.7A priority Critical patent/CN109322726A/en
Publication of CN109322726A publication Critical patent/CN109322726A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021Exhaust 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
    • F01N3/022Exhaust 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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00Silencing apparatus characterised by method of silencing
    • F01N1/08Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/082Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00Silencing apparatus characterised by method of silencing
    • F01N1/08Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/089Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/007Apparatus used as intake or exhaust silencer
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00Structure of catalyst support or particle filter
    • F01N2330/06Ceramic, e.g. monoliths

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)
  • Exhaust Silencers (AREA)

Abstract

The invention discloses a kind of exhaust gas purifications and noise elimination set composite, belong to exhaust gas aftertreatment techniques field, including exhaust gas intake port pipe, exhaust exit pipe, filter housings, filter core intake channel, filter cartridge outlet channel, porous barrier, right support partition, exhaust gas intake port pipe is connected on the left of silencer, exhaust gas intake port pipe is provided with aperture on the tube wall of pipeline section part in two cavitys respectively, silencer is internally connected with the filter housings as particle trapper, filter core is disposed in shell, filter core is made of several square airflow channels, is made of between channel filtering material.The present apparatus utilizes choke type perforated pipe noise elimination structure and two expansion chambers, low, mid-frequency noise can be effectively eliminated, soot emissions amount is greatly reduced using surface type particle trapper, the dual function of diesel engine vent gas purification and noise control is realized by integrated structure design, it can optimize and save exhaust after treatment system space structure, have many advantages, such as compact-sized, functional, stable.

Description

Exhaust gas purification and noise elimination set composite
Technical field
The present invention relates to the devices of engine exhaust gas purification and noise elimination, and in particular to diesel engine row can be effectively reduced in one kind Gas noise, the device that can be used for granular material discharged control in exhaust again belong to engine exhaust and post-process relevant technical field.
Background technique
Diesel engine is widely used in commercial vehicle, engineering machinery, ship etc. due to its superior dynamic property and economy Power device.Exhaust noise is the most important noise source of diesel engine, and the compression ratio of diesel engine is high, maximum outbreak pressure is big, exhaust Noise pollution is generally even more serious compared with gasoline engine, is the important sources of city noise pollution;The particulate matter of diesel engine discharge simultaneously Very small, 0.1~0.2 μm of average out to, be the important sources for constituting city haze pollutant emission.Therefore, how to effectively control The concentration of emission of diesel particulate reduces diesel exhaust noise, meets increasingly strict city emission regulation demands, be to work as Preceding diesel engine needs urgent the technical issues of solving.
Country is increasingly stringent to the limitation of diesel engine pollutant emission and noise at present, after causing existing diesel to be vented The exhaust silencer noise reduction effect of processing system installation is difficult to meet tightened up national standard noise limitation, and granular material discharged warp Chang Chaobiao.In order to obtain the good noise elimination of internal combustion engine range from low to high under the premise of not increasing pressure at expulsion loss Effect needs to optimize the internal structure and parameter of exhaust silencer, to obtain higher exhausting silencer effect simultaneously Promote Muffler Performance and noise abatement;Meanwhile for the pollution of control diesel exhaust gas and exhaust noise is reduced, it needs in exhaust system Clarifier and silencer are installed in system.It, can be by the emission of diesel particulate in order to save exhaust after treatment system space Control device and exhaust noise controller organic assembling are designed to integral structure, realize diesel engine vent gas purification and exhaust The dual function of noise control.Therefore, compact-sized, functional, stable exhaust purging muffler tool is designed and developed There is important meaning.
Summary of the invention
The present invention be to provide it is a kind of can be optimized by internal structure to diesel exhaust aftertreatment system and parameter, Realization can reduce diesel exhaust noise, can be effectively controlled granular material discharged Novel diesel engine exhaust purging muffler again.
A kind of exhaust gas purification provided according to the present invention and noise elimination set composite, the I. C. engine exhaust system for not showing that In system, be mounted on exhaust gas flow through the corresponding tail pipe (not shown) of exhaust system including the opening between exhaust system and environment it Before.Preferably, set composite is horizontally arranged setting under assembled state, including exhaust gas intake port pipe, exhaust exit pipe, filter head housings Body, filter core intake channel, filter cartridge outlet channel, porous barrier, right support partition, left side cavity, middle chamber, right side cavity. It is circular exhaust gas intake port pipe that cross section is connected on the left of set composite, exhaust gas intake port pipe sequentially pass through silencer left side wall panel, Porous barrier, and be connected on right support partition;It is circular exhaust exit pipe, exhaust that cross section is connected on the right side of set composite Outlet passes through silencer right side wall panel, communicates with cavity on the right side of silencer;Set composite is internally connected with as micro particle catching The filter housings of device, the cross section of filter housings are circle, are disposed with filter core in filter head housings body, filter core is by several pros Shape airflow channel composition.It is made of between channel the filtering material of certain wall thickness, the present embodiment filtering material uses porous ceramics; It is filter core intake channel, filter cartridge outlet channel respectively, intake channel is on right side by intake channel per two adjacent airflow channels Plug is blocked, and exit passageway is blocked in left side by exit passageway plug.
There are porous barrier, right support partition inside set composite;Siding, silencer downside siding, noise elimination on the upside of silencer Device return panels and silencer rear side wall panel have collectively constituted the silencer barrel that section is rectangle.Porous barrier, right support every Plate is separately fixed on the silencer barrel of rectangle.
The confined space formed between silencer left side wall panel, porous barrier and silencer barrel is left side cavity;It is porous The confined space formed between partition, right support partition and silencer barrel is middle chamber;On the right side of right support partition, silencer The confined space formed between siding and silencer barrel is right side cavity.
Exhaust gas intake port pipe is provided with inlet tube middle section aperture on the tube wall of the pipeline section part in middle chamber respectively, in left side Left section of aperture of inlet tube is provided on the tube wall of pipeline section part in cavity, the inlet tube middle section aperture and inlet tube of the present embodiment are left Duan little Kong is to be uniformly distributed, aperture 8mm.
It applies the technical scheme of the present invention, after the exhaust high speed of diesel engine flows into exhaust gas intake port pipe, due to exhaust gas intake port pipe It is blocked by right support partition, portion discharge flows into left side cavity, part by left section of aperture of inlet tube of the exhaust gas intake port pipe Exhaust flows into middle chamber by inlet tube middle section aperture, and the exhaust for flowing into middle chamber may pass through aperture on porous barrier and flow into Left side cavity;Exhaust roundtrip flowing, energy attenuation in left side cavity and middle chamber, realize the purpose of noise elimination noise reduction. The exhaust collected separately flows into spaced each filter core intake channel then from the filter inlet for being located at left side cavity, arranges Gas is after the entrance of filter core intake channel, and since intake channel is blocked on right side by intake channel plug, exit passageway is in left side It is blocked by exit passageway plug, so that exhaust can only be across the porous ceramics wall surface channel, from another adjacent channel Namely filter cartridge outlet channel is flowed out, and in the process, the particulate matter (soot) in exhaust is deposited over as filtering material On the porous ceramics wall surface of the intake channel, the trapping function of particulate matter in exhaust is realized.It realizes noise reduction and purifies dual function After energy, exhaust is flowed to the right from filter outlet, is arranged again through tail pipe to atmosphere by exhaust exit pipe.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram of exhaust gas purification provided in an embodiment of the present invention Yu noise elimination set composite.
Fig. 2 is that the cross section of the exhaust gas purification and noise elimination set composite that obtain after the position the A-A cutting shown in Fig. 1 shows It is intended to.
Each label indicates in figure:
1 set composite, 2 exhaust gas intake port pipe, 3 filter core intake channel, 4 exit passageway plug
5 left side cavity, 6 porous ceramics, 7 middle chamber, 8 filter housings, 9 intake channel plug
10 right side cavity, 11 filter cartridge outlet channel, 12 exhaust exit pipe, 13 silencer right side wall panel
17 porous barrier of siding on the downside of 14 right support partition, 15 inlet tube middle section aperture, 16 silencer
20 silencer return panels of siding, 21 silencer rear side wall panel on the upside of left section of 19 silencer of aperture of 18 inlet tubes
22 filter inlet, 23 filter outlet, 24 silencer left side wall panel, 25 trap tube sheet
Specific embodiment
According to Fig. 1 and Fig. 2, in the internal combustion engine exhaust system that set composite 1 is used to not show that, it is mounted on waste gas stream It crosses before the corresponding tail pipe (not shown) of the exhaust system including the opening between exhaust system and environment.Preferably, compound dress Setting is horizontally arranged setting under assembled state, including exhaust gas intake port pipe 2, exhaust exit pipe 12, filter housings 8, filter core import Channel 3, filter cartridge outlet channel 11, porous barrier 17, right support partition 14, left side cavity 5, middle chamber 7, right side cavity 10. It is circular exhaust gas intake port pipe 2 that cross section is connected on the left of set composite, and exhaust gas intake port pipe sequentially passes through silencer left side wall panel 24, porous barrier 17, and be connected on right support partition 14, the right end of the exhaust gas intake port pipe is exported by 14 envelope of right support partition It is stifled;It is circular exhaust exit pipe 12 that cross section is connected on the right side of the set composite, and the exhaust exit pipe passes through silencer Right side wall panel 13 is communicated with cavity 10 on the right side of silencer.Set composite is internally connected with the filter head housings as particle trapper The cross section of body 8, filter housings 8 is circle, and filter housings are fixedly attached on porous barrier 17 and right support partition 14; Filter core is disposed in filter housings 8, the both ends of filter core are separately mounted on trap tube sheet 25, and the filter core is by several pros Shape airflow channel composition.It is made of between channel the filtering material of certain wall thickness, the present embodiment filtering material uses porous ceramics 6;Every two adjacent airflow channels, are filter core intake channel 3 and filter cartridge outlet channel 11 respectively, intake channel is on right side It is blocked by intake channel plug 9, exit passageway is blocked in left side by exit passageway plug 4.
There are porous barrier 17, right support partition 14 inside the set composite;Siding 19, silencer downside on the upside of silencer Siding 16, silencer return panels 20 and silencer rear side wall panel 21 have collectively constituted the silencer barrel that section is rectangle.Institute State porous barrier 17, right support partition 14 is separately fixed on the silencer barrel of rectangle.
The confined space formed between silencer left side wall panel 24, porous barrier 17 and silencer barrel is left side cavity 5; The confined space formed between porous barrier 17, right support partition 14 and silencer barrel is middle chamber 7;Right support partition 14, the confined space formed between silencer right side wall panel 13 and silencer barrel is right side cavity 10.
Exhaust gas intake port pipe 2 be provided on the tube wall of the pipeline section part in middle chamber 7 respectively inlet tube middle section aperture 15, Left section of aperture 18 of inlet tube, the inlet tube middle section aperture 15 of the present embodiment are provided on the tube wall of pipeline section part in left side cavity 5 It is to be uniformly distributed with left section of aperture 18 of inlet tube, aperture 8mm.
It is small from left section of inlet tube of the exhaust gas intake port pipe respectively after the exhaust high speed of diesel engine flows into exhaust gas intake port pipe 2 Hole 18 flows into left side cavity 5, flows into middle chamber 7 from inlet tube middle section aperture 15;Cavity collects in left side exhaust then from Positioned at the filter inlet 22 of left side cavity, spaced each filter core intake channel 3 is separately flowed into, due to there is intake channel stifled First 9 and exit passageway plug 4, exhaust can only be across the porous ceramics wall surface channel, from adjacent filter cartridge outlet channel 11 Outflow, flows to the right through filter outlet 23, is arranged again through tail pipe to atmosphere by exhaust exit pipe 12.
A kind of exhaust gas purification provided in this embodiment and noise elimination set composite, have the effect that
1. choke type perforated pipe noise elimination structure and left side cavity and middle chamber that the present invention utilizes exhaust gas intake port pipe to have Two expansion chambers, low, mid-frequency noise can be effectively eliminated.
2. the exhaust gas particulate trapping that the present invention arranges is surface type particle trapper, pass through the machines such as absorption, deposition, shock Reason, can finely ground particles effectively in traps diesel exhaust, and the concentration of emission of soot in diesel exhaust gas is greatly reduced, and right Also there is certain effect in further decreasing exhaust noise.
3. the present invention realizes the integrated structure design of Diesel Engine Exhaust Purification and noise elimination, after capable of optimizing and saving exhaust Processing system space structure has many advantages, such as compact-sized, functional, stable.

Claims (3)

1. a kind of exhaust gas purification and noise elimination set composite, including exhaust gas intake port pipe (2), exhaust exit pipe (12), filter housings (8), filter core intake channel (3), filter cartridge outlet channel (11), porous barrier (17), right support partition (14), left side cavity (5), Middle chamber (7), right side cavity (10);It is characterized in that being connected with cross section on the left of set composite is circular exhaust gas intake port pipe (2), exhaust gas intake port pipe (2) sequentially passes through silencer left side wall panel (24), porous barrier (17), and is connected to right support partition (14) on;It is circular exhaust exit pipe (12) that cross section is connected on the right side of the set composite, and the exhaust exit pipe passes through Silencer right side wall panel (13) is communicated with cavity (10) on the right side of silencer;There are porous barrier (17), the right side inside the set composite Supporting clapboard (14);Siding (19), silencer downside siding (16), silencer return panels (20) and silencer on the upside of silencer Rear side wall panel (21) has collectively constituted the silencer barrel that section is rectangle;The porous barrier (17), right support partition (14) It is separately fixed on the silencer barrel of rectangle.
2. a kind of exhaust gas purification according to claim 1 and noise elimination set composite, it is characterized in that the cross of filter housings (8) Section is circle, and filter housings (8) are fixedly attached on porous barrier (17) and right support partition (14);Filter housings (8) it is disposed with filter core in, the both ends of filter core are separately mounted on trap tube sheet (25), and the filter core is by several square air-flows Channel composition;It is made of between channel the filtering material of certain wall thickness, filtering material uses porous ceramics (6);It is described every adjacent Two airflow channels, be filter core intake channel (3) and filter cartridge outlet channel (11) respectively, the intake channel right side by into Mouth channel plug (9) is blocked, and the exit passageway is blocked in left side by exit passageway plug (4).
3. a kind of exhaust gas purification according to claim 1 and noise elimination set composite, it is characterized in that exhaust gas intake port pipe (2) is respectively Inlet tube middle section aperture (15), the pipeline section in left side cavity (5) are provided on the tube wall of the pipeline section part in middle chamber (7) Left section of aperture (18) of inlet tube is provided on partial tube wall, left section of aperture (18) of inlet tube middle section aperture (15) and inlet tube is It is uniformly distributed, aperture 8mm.
CN201811328318.7A 2018-10-31 2018-10-31 Exhaust gas purification and noise elimination set composite Pending CN109322726A (en)

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CN201811328318.7A CN109322726A (en) 2018-10-31 2018-10-31 Exhaust gas purification and noise elimination set composite

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111412037A (en) * 2020-04-22 2020-07-14 扬州工业职业技术学院 Exhaust particle trapping device based on microwave heating regeneration
CN112177711A (en) * 2020-09-22 2021-01-05 徐工集团工程机械股份有限公司道路机械分公司 Noise elimination filter and exhaust emission device
CN113107724A (en) * 2021-04-30 2021-07-13 东风汽车集团股份有限公司 Air filter structure of air inlet system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4961314A (en) * 1988-08-15 1990-10-09 Arvin Industries, Inc. Tuned exhaust processor assembly
US5279630A (en) * 1992-01-03 1994-01-18 Ernst-Apparatebau Gmbh & Co. Soot filter for diesel engines
JP2003097248A (en) * 2001-09-26 2003-04-03 Hino Motors Ltd Exhaust gas purifier
CN1464936A (en) * 2001-08-08 2003-12-31 丰田自动车株式会社 An exhaust gas purification device
CN1914410A (en) * 2003-12-12 2007-02-14 日野自动车株式会社 Exhaust gas purifier
CN101676527A (en) * 2008-08-12 2010-03-24 德国曼商用车辆股份公司 Particulate separator, in particular particulate filter for separating particulates from an exhaust gas flow of a combustion engine
CN201802458U (en) * 2010-09-10 2011-04-20 吉林艾瑞环保技术有限公司 Pressure-stabilizing mixed-flow type exhaust purification muffler
CN204024776U (en) * 2014-06-09 2014-12-17 陈庆东 A kind of exhaust gas post-treatment device with waste gas ejecting
CN209212343U (en) * 2018-10-31 2019-08-06 扬州工业职业技术学院 Particulate matter filtering and silencing apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4961314A (en) * 1988-08-15 1990-10-09 Arvin Industries, Inc. Tuned exhaust processor assembly
US5279630A (en) * 1992-01-03 1994-01-18 Ernst-Apparatebau Gmbh & Co. Soot filter for diesel engines
CN1464936A (en) * 2001-08-08 2003-12-31 丰田自动车株式会社 An exhaust gas purification device
JP2003097248A (en) * 2001-09-26 2003-04-03 Hino Motors Ltd Exhaust gas purifier
CN1914410A (en) * 2003-12-12 2007-02-14 日野自动车株式会社 Exhaust gas purifier
CN101676527A (en) * 2008-08-12 2010-03-24 德国曼商用车辆股份公司 Particulate separator, in particular particulate filter for separating particulates from an exhaust gas flow of a combustion engine
CN201802458U (en) * 2010-09-10 2011-04-20 吉林艾瑞环保技术有限公司 Pressure-stabilizing mixed-flow type exhaust purification muffler
CN204024776U (en) * 2014-06-09 2014-12-17 陈庆东 A kind of exhaust gas post-treatment device with waste gas ejecting
CN209212343U (en) * 2018-10-31 2019-08-06 扬州工业职业技术学院 Particulate matter filtering and silencing apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111412037A (en) * 2020-04-22 2020-07-14 扬州工业职业技术学院 Exhaust particle trapping device based on microwave heating regeneration
CN112177711A (en) * 2020-09-22 2021-01-05 徐工集团工程机械股份有限公司道路机械分公司 Noise elimination filter and exhaust emission device
CN113107724A (en) * 2021-04-30 2021-07-13 东风汽车集团股份有限公司 Air filter structure of air inlet system

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