CN201284683Y - Purification silencer for exhaust gas of diesel engine - Google Patents
Purification silencer for exhaust gas of diesel engine Download PDFInfo
- Publication number
- CN201284683Y CN201284683Y CNU200820100496XU CN200820100496U CN201284683Y CN 201284683 Y CN201284683 Y CN 201284683Y CN U200820100496X U CNU200820100496X U CN U200820100496XU CN 200820100496 U CN200820100496 U CN 200820100496U CN 201284683 Y CN201284683 Y CN 201284683Y
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- CN
- China
- Prior art keywords
- catalytic
- filter
- filters
- diesel motor
- motor exhaust
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a diesel engine tail gas purification silencer comprising a closed cavity forming by a casing, a front end cover and a rear end cover. The front end of the cavity is provided with an air inlet pipe, and the rear end is provided with an exhaust pipe; the casing is internally provided with a catalytic treating device which is formed by two or five coaxial catalytic filters, and a spacing ring is arranged between two adjacent catalytic filters; and the front side and the rear side of the catalytic treating device are provided with stopping rings used for positioning the catalytic processing device. In the exhaust gas treated by multi-level catalytic filters, the reduction amount of hydrocarbon HC and carbon monoxide CO can reach up to 90 percent, and the content of nitrogen oxide NOX is reduced greatly; and moreover, the reduction amount of particles in the exhaust gas can reach up to 93 percent, and meanwhile, the utility model can reduce the exhaust noise value db by about 25 decibels.
Description
Technical field
The utility model relates to a kind of silencer of motor, particularly a kind of diesel motor exhaust purifying muffler, and it has the effect of cleaning of off-gas and noise elimination simultaneously.
Background technique
In recent years, people are in order to protect environment effectively, and the tail gas clean-up problem at motor has proposed all solutions, has designed various device for purifying and treating tail gas.Harmful matters such as the dust in the way filtration tail gas of the purifying processing device usefulness liquid filtering that has, carbon granules, waste gas; What have makes harmful gas chemical reaction in the tail gas with catalyzer, generates innocuous gas; Have with electromagnetic field principle magnetization or the harmful matter in the tail gas is charged and with it absorption.Though various ways have all produced certain effect to the purification of motor exhaust, exist some shortcomings separately, as cost an arm and a leg, difficult in maintenance, single purification or single filtration, purifying effect is not good etc., thus the device for purifying and treating tail gas that causes inventing is difficult to carry out and promotes.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of good purification, diesel motor exhaust purifying muffler easy for installation.
In order to address the above problem, the technical solution adopted in the utility model is: a kind of diesel motor exhaust purifying muffler, comprise the closed chamber that forms by housing, front cover and rear end cover, the front end of this chamber is provided with suction tude, the rear end is provided with outlet pipe, in described housing device for catalytic treatment is housed, described device for catalytic treatment is made of 2 to 5 coaxial catalytic filters, is provided with isolating ring between two adjacent catalytic filters; The forward and backward both sides of described device for catalytic treatment are equipped with the baffle ring that is used to locate this device for catalytic treatment.
The waste gas that motor ejects enters device for catalytic treatment through suction tude, and device for catalytic treatment is formed by multistage catalytic filter arranged in co-axial alignment.Catalytic filter can adopt porcelain filter or metallic filter, and dip-coating has catalytic specie on catalytic filter.Catalytic specie at high temperature impels the toxic and harmful in the waste gas to carry out chemical reaction, and hydrocarbon (HC) is converted into harmless water (H
2O) and carbon dioxide (CO
2), carbon monoxide (CO) is converted into harmless carbon dioxide (CO
2).
As preferred embodiment of the present utility model, described device for catalytic treatment is made of two catalytic filters, and wherein the filter core aperture of preposition catalytic filter is greater than the filter core aperture of rearmounted catalytic filter.Like this, the toxic and harmful in the waste gas through preposition catalytic filter, is converted into harmless water (H with hydrocarbon (HC) earlier
2O) and carbon dioxide (CO
2), carbon monoxide (CO) is converted into harmless carbon dioxide (CO
2), and then the rearmounted catalytic filter of process further is converted into toxic and harmful harmless gas.Because rearmounted catalytic filter is pottery with micropore or the metal that scribbles catalyzer, removes and continue nitrous oxide (NO) is converted into harmless nitrogen dioxide (NO
2) outside, also the particulate matter in the tail gas is caught.The high-temperature gas that diesel engine produces when high-load operation will be caught the particulate matter of living to this device and be burnt, and become innocuous gas and discharge through outlet pipe, reach the purpose of further cleaning of off-gas like this.The position of preposition catalytic filter and rearmounted catalytic filter can be exchanged.
Outer cover at catalytic filter is equipped with protecting jacket, and this protecting jacket adopts flexible material to make, and plays the squeeze and destroy to catalytic filter that heat insulation, damping and minimizing cause because of thermal expansion.
Be provided with the shunting decompression device between the baffle ring of device for catalytic treatment front side and described suction tude, this shunting decompression device is an entity over against the part of suction tude, is provided with vent on this shunting decompression device remaining part.The shunting decompression device reduces pressure to air-flow and evenly shunting, reduces the impact failure of air-flow to preposition device for catalytic treatment, and uniform distribution gas enters preposition device for catalytic treatment and then strengthens treatment effect.
Be provided with steel mesh between described shunting decompression device and the described tubular shell antetheca, be filled with glass fibre or asbestos in the chamber that this steel mesh and tubular shell antetheca form, stretch out from this glass fibre or asbestos and steel mesh the rear end of described suction tude.Form Thermal packer by steel mesh and packing glass fibre (or asbestos), except that heat insulating function, also have absorption acoustic pressure function, and then reach the effect of vibration damping and noise elimination.
Now, the utlity model has following beneficial effect for prior art:
(1) reduction of hydrocarbon (HC) in the exhaust after treatment and carbon monoxide (CO) is up to 90%; Nitrogen oxide (NO
X) content significantly reduce;
(2) the particulate matter reduction in the exhaust after treatment is up to 93%;
(2) exhaust sound value (db) reduces about 25 decibels.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural representation;
Fig. 2 is the structural representation of shunting decompression device 6;
Fig. 3 is to view along the A among Fig. 1;
Fig. 4 is the scheme of installation of the utility model embodiment 2 outlet pipes 15;
Fig. 5 is the scheme of installation of the utility model embodiment 3 outlet pipes 15.
Embodiment
Further the utility model is illustrated below in conjunction with drawings and Examples.
As shown in Figure 1, the diesel motor exhaust purifying muffler mainly is made of housing 1 and device for catalytic treatment, and the cross section of housing 1 is circular, also can be for square or oval; The front end and back end of housing 1 is respectively through front cover 3 and rear end cover 14 sealings; On front cover 3 and rear end cover 14, be respectively equipped with suction tude 2 and outlet pipe 15; Outlet pipe 15 is installed in the center or the off-centered position (as shown in Figure 3, Figure 4) of rear end cover 14, also can be installed on the housing 1 rear end sidewall (as shown in Figure 5), equally, suction tude 2 also can be installed in the center or the off-centered position of front cover 3; Waste gas enters from suction tude 2, handles the back and discharges from outlet pipe 15.
In this housing 1 device for catalytic treatment is housed, this device for catalytic treatment is made of coaxial plural catalytic filter 9,11, is provided with isolating ring 10 between two adjacent catalytic filters 9,11.Adopt in the present embodiment shown in two catalytic filters (as Fig. 1), catalytic filter adopts porcelain filter or metallic filter, and wherein, the aperture of preposition catalytic filter 9 is greater than the aperture of rearmounted catalytic filter 11.Toxic and harmful in the waste gas through preposition catalytic filter 9, is converted into harmless water H with hydrocarbon HC earlier
2O and carbon dioxide CO
2, carbon monoxide CO is converted into harmless carbon dioxide CO
2, and then the rearmounted catalytic filter 11 of process continues nitrous oxide NO is converted into harmless nitrogen dioxide NO
2, simultaneously the particulate matter in the gas is caught.The high-temperature gas that diesel engine produces when high loaded process will be caught the particulate matter of living to this device and be burnt at isolating ring 10 internal combustions.The position of preposition catalytic filter 9 and rearmounted catalytic filter 11 can be exchanged.
Outer cover at catalytic filter 9,11 is equipped with protecting jacket 8,12, and this protecting jacket 8,12 is made up of overcoat and glass fibre or asbestos packing.
Catalytic filter 9,11 is packed in the housing 1 together with protecting jacket 8 and isolating ring 10, through being contained in baffle ring 7,13 location in the housing 1.
As shown in Figures 1 and 2, be provided with shunting decompression device 6 between the baffle ring 7 of described device for catalytic treatment front side and described suction tude 2, this shunting decompression device 6 is an entity over against the part of suction tude 2, is provided with vent 6a on these shunting decompression device 6 remaining parts.Be provided with steel mesh 5 between shunting decompression device 6 and tubular shell 1 antetheca, be filled with glass fibre or asbestos 4 in the chamber that this steel mesh 5 and tubular shell 1 antetheca form, stretch out from this glass fibre or asbestos 4 and steel mesh 5 rear end of described suction tude 2.
Claims (6)
1. diesel motor exhaust purifying muffler, comprise the closed chamber that forms by housing (1), front cover (3) and rear end cover (14), the front end of this chamber is provided with suction tude (2), the rear end is provided with outlet pipe (15), in described housing (1) device for catalytic treatment is housed, it is characterized in that: described device for catalytic treatment is made of coaxial 2 to 5 catalytic filters (9,11), be provided with isolating ring (10) between adjacent two catalytic filters (9,11); The forward and backward both sides of described device for catalytic treatment are equipped with the baffle ring (7,13) that is used to locate this device for catalytic treatment.
2. diesel motor exhaust purifying muffler according to claim 1, it is characterized in that: described device for catalytic treatment is by two catalytic filters (9,11) constitute, the filter core aperture of wherein preposition catalytic filter (9) is greater than the filter core aperture of rearmounted catalytic filter (11).
3. diesel motor exhaust purifying muffler according to claim 1, it is characterized in that: described device for catalytic treatment is by two catalytic filters (9,11) constitute, the filter core aperture of wherein preposition catalytic filter (9) is less than the filter core aperture of rearmounted catalytic filter (11).
4. according to claim 1 or 2 or 3 described diesel motor exhaust purifying mufflers, it is characterized in that: the outer cover at described catalytic filter (9,11) is equipped with protecting jacket (8,12).
5. according to claim 1 or 2 or 3 described diesel motor exhaust purifying mufflers, it is characterized in that: between the baffle ring (7) of described device for catalytic treatment front side and described suction tude (2), be provided with shunting decompression device (6), this shunting decompression device (6) is an entity over against the part (6b) of suction tude (2), is provided with vent (6a) on this shunting decompression device (6) remaining part.
6. diesel motor exhaust purifying muffler according to claim 4, it is characterized in that: be provided with steel mesh (5) between described shunting decompression device (6) and described tubular shell (1) antetheca, be filled with glass fibre or asbestos (4) in the chamber that this steel mesh (5) and tubular shell (1) antetheca form, stretch out from this glass fibre or asbestos (4) and steel mesh (5) rear end of described suction tude (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820100496XU CN201284683Y (en) | 2008-11-10 | 2008-11-10 | Purification silencer for exhaust gas of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820100496XU CN201284683Y (en) | 2008-11-10 | 2008-11-10 | Purification silencer for exhaust gas of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284683Y true CN201284683Y (en) | 2009-08-05 |
Family
ID=40949668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820100496XU Expired - Fee Related CN201284683Y (en) | 2008-11-10 | 2008-11-10 | Purification silencer for exhaust gas of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284683Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705046A (en) * | 2012-06-29 | 2012-10-03 | 太仓东能环保设备有限公司 | Automobile exhaust treatment device |
| CN103498716A (en) * | 2013-09-02 | 2014-01-08 | 上海创怡环境技术有限公司 | Diesel engine black smoke catalytic agent filter system for bus |
| CN103925047A (en) * | 2014-03-07 | 2014-07-16 | 崔吉春 | Silencer capable of filtering PM2.5 and haze |
| CN104895657A (en) * | 2014-03-05 | 2015-09-09 | 贾福国 | Automobile exhaust filtering exhaust pipe |
| CN105114154A (en) * | 2015-08-31 | 2015-12-02 | 洛阳市华宝非金属材料有限公司 | Particle catcher used for diesel engine |
| CN105114153A (en) * | 2015-08-31 | 2015-12-02 | 洛阳市华宝非金属材料有限公司 | Particle catcher of diesel engine |
| CN105332764A (en) * | 2015-12-04 | 2016-02-17 | 安徽合叉叉车有限公司 | Noise-reduction environment-friendly muffler for small-tonnage diesel fork lift truck |
| CN105822395A (en) * | 2016-05-11 | 2016-08-03 | 江苏大学 | Tail gas purification muffler applied to 1115 series of single-cylinder diesel engines |
| CN107461251A (en) * | 2017-08-21 | 2017-12-12 | 安徽特斯艾尔机电设备有限公司 | A kind of automobile exhaust gas purifying installation |
| CN109162795A (en) * | 2018-11-05 | 2019-01-08 | 徐州瑞田工程机械有限公司 | It is a kind of can cleaning of off-gas automobile exhaust pipe |
-
2008
- 2008-11-10 CN CNU200820100496XU patent/CN201284683Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705046A (en) * | 2012-06-29 | 2012-10-03 | 太仓东能环保设备有限公司 | Automobile exhaust treatment device |
| CN103498716A (en) * | 2013-09-02 | 2014-01-08 | 上海创怡环境技术有限公司 | Diesel engine black smoke catalytic agent filter system for bus |
| CN104895657A (en) * | 2014-03-05 | 2015-09-09 | 贾福国 | Automobile exhaust filtering exhaust pipe |
| CN103925047A (en) * | 2014-03-07 | 2014-07-16 | 崔吉春 | Silencer capable of filtering PM2.5 and haze |
| CN105114154A (en) * | 2015-08-31 | 2015-12-02 | 洛阳市华宝非金属材料有限公司 | Particle catcher used for diesel engine |
| CN105114153A (en) * | 2015-08-31 | 2015-12-02 | 洛阳市华宝非金属材料有限公司 | Particle catcher of diesel engine |
| CN105114153B (en) * | 2015-08-31 | 2018-02-27 | 洛阳市华宝非金属材料有限公司 | Diesel particulate trap |
| CN105332764A (en) * | 2015-12-04 | 2016-02-17 | 安徽合叉叉车有限公司 | Noise-reduction environment-friendly muffler for small-tonnage diesel fork lift truck |
| CN105822395A (en) * | 2016-05-11 | 2016-08-03 | 江苏大学 | Tail gas purification muffler applied to 1115 series of single-cylinder diesel engines |
| CN107461251A (en) * | 2017-08-21 | 2017-12-12 | 安徽特斯艾尔机电设备有限公司 | A kind of automobile exhaust gas purifying installation |
| CN109162795A (en) * | 2018-11-05 | 2019-01-08 | 徐州瑞田工程机械有限公司 | It is a kind of can cleaning of off-gas automobile exhaust pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20151110 |
|
| EXPY | Termination of patent right or utility model |