CN203532006U - Silencer of diesel engine - Google Patents
Silencer of diesel engine Download PDFInfo
- Publication number
- CN203532006U CN203532006U CN201320524244.0U CN201320524244U CN203532006U CN 203532006 U CN203532006 U CN 203532006U CN 201320524244 U CN201320524244 U CN 201320524244U CN 203532006 U CN203532006 U CN 203532006U
- Authority
- CN
- China
- Prior art keywords
- housing
- tubular carrier
- diesel engine
- shell
- orifice plate
- 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
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 12
- 239000003054 catalyst Substances 0.000 claims abstract description 18
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000030279 gene silencing Effects 0.000 abstract description 8
- 230000003197 catalytic effect Effects 0.000 abstract 3
- 239000011148 porous material Substances 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 description 12
- 230000008030 elimination Effects 0.000 description 5
- 238000003379 elimination reaction Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to a silencer of a diesel engine. The silencer of the diesel engine comprises a shell. An air inlet pipe is arranged at one end of the shell and an air outlet pipe is arranged at the other end of the shell. A pore plate and a catalytic converter are arranged in the shell. The outer circumferential face of the pore plate is fixed to the inner circumferential wall face of the shell. The pore plate is located between the air inlet end of the shell and the catalytic converter. The catalytic converter comprises a tubular carrier, a support and a catalyst coating the inner surface and the outer surface of the tubular carrier. The tubular carrier is fixedly connected with the support. The support is fixedly connected with the inner wall face of the shell. The silencer of the diesel engine improves the silencing performance and reduces harmful gas emission.
Description
Technical field
The utility model relates to a kind of diesel engine silencer.
Background technique
Silencing apparatus is to stop sound transmission and a kind of device of allowing air-flow to pass through, is the important measures of eliminating air power noise.Silencing apparatus is mounted in the low noise device that falls on the air-flow path of aerodynamic force equipment (as larger equipment of relief opening noise such as blower, air compressor, boiler exhaust mouth, generator, water pumps) or in inlet and exhaust system.
A kind of diesel generator silencing apparatus is disclosed in prior art, comprise housing, suction port, relief opening 3, noise elimination dividing plate, honeycomb duct, lancing door and sealing cover, housing is provided with suction port and relief opening, in housing 1, be provided with noise elimination dividing plate, between noise elimination dividing plate, be fixed with honeycomb duct, housing one side is provided with lancing door, and lancing door is provided with sealing cover.The advantage of this silencing apparatus is that structure is comparatively simple.But carry out body for silencing apparatus, its major function is to eliminate noise and exhausting air, and the silencing apparatus of said structure, in cavity, be provided with a plurality of dividing plates, and being axially not located on the same line of each honeycomb duct, for air-flow, noise elimination dividing plate has played to air-flow the effect hindering, therefore, reduced the performance of silencing apparatus.
Summary of the invention
For above-mentioned technical problem, main purpose of the present utility model is to provide a kind of diesel engine silencer of eliminating the noise and reducing noxious gas emission that improves.
The technological scheme solving the problems of the technologies described above is as follows:
Diesel engine silencer, comprise housing, one end of housing is provided with suction tude, the other end of housing is provided with steam outlet pipe, is provided with orifice plate, catalyst converter in housing, and the outer peripheral surface of described orifice plate is fixed on the inner circumference wall of housing, orifice plate is between the inlet end and catalyst converter of housing, described catalyst converter comprises tubular carrier, support and the catalyzer that is coated in tubular carrier internal surface and outer surface, and tubular carrier is fixedly connected with support, and support is fixedly connected with the internal face of housing.
Adopted such scheme, after the waste gas that enters diesel emission arrives in housing inner chamber by suction tude, inhibition due to orifice plate, the flow velocity of waste gas streams is declined, and orifice plate has been eliminated the Aerodynamic Noise of A of a part of waste gas like this, between inlet end and catalyst converter at orifice plate at housing, like this, between orifice plate and the inlet end of housing, formed a noise elimination cavity, therefore, the effect by orifice plate reduces the Aerodynamic Noise of A of waste gas streams.When waste gas is from orifice plate flows through, existence due to catalyst converter, between waste gas and catalyst converter, carry out chemical reaction, by catalyzer, answer the harmful matters such as NO in waste gas to change NO2 harmless object into, and, because catalyst converter has comprised tubular carrier, tubular carrier has all applied catalyzer at inner and outer surface like this, and tubular carrier is owing to having the Nei Biaobiao of outer surface and endoporus, and waste gas streams passed through not produce inhibition, and its surface area is large, more abundant with reacting of waste gas.
Also comprise that is looped around a catalyst converter guide shell around, guide shell is fixed on the internal face of housing, and the through hole on this guide shell is the taper hole that aperture, one end internal diameter is greater than the other end aperture internal diameter, and the large aperture end of guide shell is towards described orifice plate.When air-flow is flowed out from orifice plate, due to the endoporus through hole of a part of gas from tubular carrier, part gas passes through from the gap between tubular carrier and housing, under the effect of guide shell, the flow direction of the waste gas streams that passes through from the gap between tubular carrier and housing is changed, the outer wall along tubular carrier flows, and such object is in order to allow waste gas and catalyzer can carry out better more fully chemical reaction, reduces the discharge of harmful gas.
The tube wall face of described tubular carrier is provided with a plurality of air holes that run through this tubular carrier tube wall.When the endoporus of waste gas at tubular carrier, and during the Clearance Flow between tubular carrier and housing, solid element due to pressure difference, gas mobile in endoporus can enter between tubular carrier and housing by air hole, make so the inside and outside air balance of tubular carrier, be beneficial to fast gas is discharged.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
1 is housing, and 2 is suction tude, and 3 is steam outlet pipe, and 4 is orifice plate, and 5 is catalyst converter, and 51 is tubular carrier, and 52 is support, and 53 is catalyzer, and 54 is air hole, and 6 is guide shell.
Embodiment
With reference to Fig. 1, diesel engine silencer of the present utility model, comprises housing 1, and one end of housing 1 is provided with suction tude 2, and the other end of housing 1 is provided with steam outlet pipe 3.In housing 1, be provided with orifice plate 4, catalyst converter 5, the outer peripheral surface of described orifice plate 4 is fixed on the inner circumference wall of housing 1, orifice plate 4 is between the inlet end and catalyst converter 5 of housing 1, described catalyst converter comprises tubular carrier 51, support 52 and the catalyzer 53 that is coated in tubular carrier internal surface and outer surface, and the tube wall face of described tubular carrier 51 is provided with a plurality of air holes 54 that run through this tubular carrier tube wall.Tubular carrier 51 is fixedly connected with support 52, and support 52 is fixedly connected with the internal face of housing 1.Also comprise that is looped around a catalyst converter guide shell 6 around, guide shell 6 is fixed on the internal face of housing, and the through hole on this guide shell is the taper hole that aperture, one end internal diameter is greater than the other end aperture internal diameter, and the large aperture end of guide shell is towards described orifice plate 4.
Claims (3)
1. diesel engine silencer, comprise housing, one end of housing is provided with suction tude, the other end of housing is provided with steam outlet pipe, it is characterized in that: in housing, be provided with orifice plate, catalyst converter, the outer peripheral surface of described orifice plate is fixed on the inner circumference wall of housing, orifice plate is between the inlet end and catalyst converter of housing, described catalyst converter comprises tubular carrier, support and the catalyzer that is coated in tubular carrier internal surface and outer surface, tubular carrier is fixedly connected with support, and support is fixedly connected with the internal face of housing.
2. diesel engine silencer according to claim 1, it is characterized in that: also comprise that is looped around a catalyst converter guide shell around, guide shell is fixed on the internal face of housing, through hole on this guide shell is the taper hole that aperture, one end internal diameter is greater than the other end aperture internal diameter, and the large aperture end of guide shell is towards described orifice plate.
3. diesel engine silencer according to claim 1, is characterized in that: the tube wall face of described tubular carrier is provided with a plurality of air holes that run through this tubular carrier tube wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320524244.0U CN203532006U (en) | 2013-08-27 | 2013-08-27 | Silencer of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320524244.0U CN203532006U (en) | 2013-08-27 | 2013-08-27 | Silencer of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532006U true CN203532006U (en) | 2014-04-09 |
Family
ID=50418225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320524244.0U Expired - Fee Related CN203532006U (en) | 2013-08-27 | 2013-08-27 | Silencer of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107847842A (en) * | 2015-05-20 | 2018-03-27 | 纳薄特斯克汽车零部件有限公司 | oil separator |
-
2013
- 2013-08-27 CN CN201320524244.0U patent/CN203532006U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107847842A (en) * | 2015-05-20 | 2018-03-27 | 纳薄特斯克汽车零部件有限公司 | oil separator |
| CN107847842B (en) * | 2015-05-20 | 2020-12-22 | 纳博特斯克汽车零部件有限公司 | oil separator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105888782B (en) | Diesel engine vent gas composite purification device | |
| CN204457943U (en) | Scr catalytic muffler | |
| DE502004000097D1 (en) | Combined exhaust aftertreatment / Schalldämpfungsvorrichtung in the exhaust system of an internal combustion engine | |
| CN102418581A (en) | Three-way catalytic silencer for vehicle | |
| CN105736097B (en) | Diesel engine vent gas reclaiming clean and noise reduction set composite | |
| CN105781689B (en) | Diesel engine vent gas compound noise-reducing device | |
| CN203532004U (en) | Improved diesel engine silencer | |
| CN205618236U (en) | Air exhaust treatment device | |
| CN201522846U (en) | Combined exhaust air and steam muffler | |
| KR100769700B1 (en) | Back pressure removal backflow prevention device | |
| CN210686088U (en) | A generator set exhaust gas purification muffler | |
| CN203532006U (en) | Silencer of diesel engine | |
| CN203769880U (en) | Three-way catalytic silencer | |
| CN104420940A (en) | Diesel engine muffler | |
| CN205477849U (en) | A device of making an uproar falls in combined type tail gas for diesel engine | |
| CN105569772A (en) | Silencer of exhaust system of motorcycle | |
| CN104420939A (en) | Silencer of improved diesel engine | |
| CN102606268B (en) | Reactive muffler for engineering machine | |
| CN202645696U (en) | Car exhaust silencer | |
| CN202108561U (en) | Exhaust muffler for automobile | |
| CN205477848U (en) | A tail gas is retrieved purification and is fallen set composite of making an uproar for diesel engine | |
| KR20010045684A (en) | Exhaust noise reduction apparatus of a car | |
| CN202360185U (en) | Automobile silencer | |
| CN202745971U (en) | Square-box type small carrier catalytic muffler | |
| CN206092122U (en) | Novel silencer is used to agricultural vehicle |
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: 20140409 Termination date: 20150827 |
|
| EXPY | Termination of patent right or utility model |