CN104420939A - Silencer of improved diesel engine - Google Patents
Silencer of improved diesel engine Download PDFInfo
- Publication number
- CN104420939A CN104420939A CN201310377588.8A CN201310377588A CN104420939A CN 104420939 A CN104420939 A CN 104420939A CN 201310377588 A CN201310377588 A CN 201310377588A CN 104420939 A CN104420939 A CN 104420939A
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- CN
- China
- Prior art keywords
- housing
- orifice plate
- dunnage
- diesel engine
- shell
- 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.)
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- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a silencer of an improved diesel engine. The silencer of the improved diesel engine comprises a shell, an intake-tube is arranged at one end of the shell and an exit pipe is arranged at the other end of the shell; a support plate, a pore plate, a hush tube and a catalyst converter are formed in the shell; the support plate and the pore plate are arranged along the axial direction of the shell at interval and fixed with the inner surface of the shell, and then the shell, the support plate and the pore plate can form an expansion chamber; an assembling hole is opened in the support plate, a big hole and a small hole are opened in the pore plate, one end of the hush tube is inserted into the assembling hole in the support plate for fixedly connecting with the support plate while the other end of the hush tube is inserted into the big hole of the pore plate for fixedly connecting with the pore plate, the tube wall of the middle of the hush tube is opened with a silencing hole penetrating through the tube wall; the catalyst converter is located at the downstream of the pore plate and fixed on the inner wall of the shell. The silencing performance is raised and the harmful exhaust gas emission is reduced.
Description
Technical field
The present invention relates to a kind of diesel engine silencer of improvement.
Background technique
Silencing apparatus is a kind of device stoping sound transmission and allow air-flow to pass through, and is the important measures eliminating air power noise.The device of the reduction noise on the air-flow path that silencing apparatus is mounted in air powered equipment (equipment as larger in relief opening noises such as blower, air compressor, boiler exhaust mouth, generator, water pumps) or in inlet and exhaust system.
A kind of silencer of diesel engine electric generator 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, noise elimination dividing plate is provided with in housing 1, honeycomb duct is fixed with between noise elimination dividing plate, housing 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 body is come for silencing apparatus, its major function is stress release treatment and exhausting air, and the silencing apparatus of said structure, multiple dividing plate is provided with in cavity, and the axis of each honeycomb duct is not located on the same line, for air-flow, noise elimination dividing plate serves the effect of obstruction to air-flow, therefore, the performance of silencing apparatus is reduced.
Summary of the invention
For above-mentioned technical problem, main purpose of the present invention is to provide a kind of diesel engine silencer improving the improvement eliminating the noise and reduce noxious gas emission.
The technological scheme solved the problems of the technologies described above is as follows:
The diesel engine silencer of improvement, comprise housing, one end of housing is provided with suction tude, the other end of housing is provided with steam outlet pipe, dunnage is provided with in housing, orifice plate, hush tube and catalyst converter, dunnage and orifice plate along housing axially spaced-apart arrange and fixing with shell inner surface after, housing and dunnage and orifice plate surround an expansion chamber, dunnage is provided with pilot hole, orifice plate is provided with macropore and aperture, one end of hush tube is inserted into after in the pilot hole in dunnage and is fixedly connected with dunnage, the other end of hush tube is inserted into after in the macropore on orifice plate and is fixedly connected with orifice plate, the tube wall face at the middle part of hush tube is provided with the sound attenuation hole running through tube wall, described catalyst converter is positioned at the downstream of orifice plate, catalyst converter is fixed on the internal face of housing.
Have employed such scheme, after waste gas enters housing from suction port, due to the iris action of dunnage, waste gas can only flow in hush tube, under the effect of the sound attenuation hole of hush tube, exhaust dynamics noise is discharged, namely Aerodynamic Noise of A is reduced, part waste gas flows out to after expansion chamber from sound attenuation hole, waste gas flow to the downstream of orifice plate by the aperture that orifice plate is little, another part waste gas flows out from the port of hush tube, equally also flow to the downstream of orifice plate, because catalyst converter is positioned at the downstream of orifice plate, therefore, chemical reaction is carried out through the waste gas of noise reduction and catalyst converter, harmful gas contained in waste gas conversion is become innocuous gas, avoid contaminated air.
Further, the two ends of described hush tube are horn mouth.The hush tube of this shape is not only convenient to receive waste gas, and is convenient to combustion gas, makes the flowing of waste gas in hush tube smooth and easy, and reaches the object of noise elimination noise reduction.
Further, described catalyst converter comprises tubular carrier, support and is coated in the catalyzer of 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.Due to the existence of catalyst converter, between waste gas and catalyst converter, carry out chemical reaction, answered by catalyzer the harmful matters such as the NO in waste gas to change NO into
2harmless object, and, because catalyst converter contains tubular carrier, such tubular carrier is all coated with catalyzer at inner and outer surface, tubular carrier owing to having the Nei Biaobiao of outer surface and endoporus, to waste gas streams by not producing inhibition, and its surface area is large, more abundant with the reaction of waste gas.
Further, the tube wall face of described tubular carrier is provided with multiple air hole running through this tubular carrier tube wall.When waste gas is at the endoporus of tubular carrier, and during Clearance Flow between tubular carrier and housing, due to the solid element of pressure difference, the gas flowed in endoporus enters between tubular carrier and housing by air hole, make the air balance inside and outside tubular carrier like this, be beneficial to and fast gas discharged.
Further, also comprise a guide shell be looped around around catalyst converter, 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, because a part of gas is from the endoporus through hole of 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 passed through from the gap between tubular carrier and housing is changed, namely the outer wall along tubular carrier flows, and such object is to allow waste gas and catalyzer can carry out chemical reaction better more fully, reduces the discharge of harmful gas.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
1 is housing, and 2 is suction tude, and 3 is steam outlet pipe, and 4 is dunnage, and 5 is orifice plate, and 51 is aperture, and 6 is hush tube, and 61 is sound attenuation hole, and 7 is catalyst converter, and 71 is tubular carrier, and 72 is support, and 73 is catalyzer, and 74 is air hole, and 8 is expansion chamber, and 9 is guide shell.
Embodiment
With reference to Fig. 1, the diesel engine silencer of improvement of the present invention,
Comprise housing 1, 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.Dunnage 4, orifice plate 5, hush tube 6 and catalyst converter 7 is provided with in housing.Dunnage 4 and orifice plate 5 along housing 1 axially spaced-apart arrange and fixing with shell inner surface after, housing 1 surrounds an expansion chamber 8 with dunnage 4 and orifice plate 5.Dunnage 4 is provided with pilot hole, and orifice plate 5 is provided with macropore and aperture 51, and one end of hush tube 6 is inserted into after in the pilot hole in dunnage 4 and is fixedly connected with dunnage 4, and the other end of hush tube 6 is inserted in the macropore on orifice plate 5 and is fixedly connected with orifice plate 5 afterwards.The tube wall face at the middle part of hush tube 6 is provided with the sound attenuation hole 61 running through tube wall, and the two ends of described hush tube are horn mouth.Described catalyst converter 7 is positioned at the downstream of orifice plate, and catalyst converter 7 is fixed on the internal face of housing 1.Described catalyst converter 7 comprises tubular carrier 71, support 72 and is coated in the catalyzer 73 of tubular carrier internal surface and outer surface, and the tube wall face of described tubular carrier 71 is provided with multiple air hole 74 running through this tubular carrier tube wall.Tubular carrier 71 is fixedly connected with support 72, and support 72 is fixedly connected with the internal face of housing 1.Also comprise a guide shell 9 be looped around around catalyst converter, guide shell 9 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 5.
Claims (5)
1. the diesel engine silencer of improvement, 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 dunnage, orifice plate, hush tube and catalyst converter, dunnage and orifice plate along housing axially spaced-apart arrange and fixing with shell inner surface after, housing and dunnage and orifice plate surround an expansion chamber, dunnage is provided with pilot hole, orifice plate is provided with macropore and aperture, one end of hush tube is inserted into after in the pilot hole in dunnage and is fixedly connected with dunnage, the other end of hush tube is inserted into after in the macropore on orifice plate and is fixedly connected with orifice plate, the tube wall face at the middle part of hush tube is provided with the sound attenuation hole running through tube wall, described catalyst converter is positioned at the downstream of orifice plate, catalyst converter is fixed on the internal face of housing.
2. the diesel engine silencer of improvement according to claim 1, is characterized in that: the two ends of described hush tube are horn mouth.
3. the diesel engine silencer of improvement according to claim 1, it is characterized in that: described catalyst converter comprises tubular carrier, support and is coated in the catalyzer of 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.
4. the diesel engine silencer of improvement according to claim 3, is characterized in that: the tube wall face of described tubular carrier is provided with multiple air hole running through this tubular carrier tube wall.
5. the diesel engine silencer of improvement according to claim 3, it is characterized in that: also comprise a guide shell be looped around around catalyst converter, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310377588.8A CN104420939A (en) | 2013-08-27 | 2013-08-27 | Silencer of improved diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310377588.8A CN104420939A (en) | 2013-08-27 | 2013-08-27 | Silencer of improved diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104420939A true CN104420939A (en) | 2015-03-18 |
Family
ID=52970942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310377588.8A Pending CN104420939A (en) | 2013-08-27 | 2013-08-27 | Silencer of improved diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104420939A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575288A (en) * | 2017-10-02 | 2018-01-12 | 金华欧仑催化科技有限公司 | A kind of catalyst converter |
| CN108953239A (en) * | 2018-10-16 | 2018-12-07 | 河北众邦节能科技服务有限公司 | A kind of low flow resistance high silencing performance device of steel combustion fan |
-
2013
- 2013-08-27 CN CN201310377588.8A patent/CN104420939A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575288A (en) * | 2017-10-02 | 2018-01-12 | 金华欧仑催化科技有限公司 | A kind of catalyst converter |
| CN108953239A (en) * | 2018-10-16 | 2018-12-07 | 河北众邦节能科技服务有限公司 | A kind of low flow resistance high silencing performance device of steel combustion fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |
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| WD01 | Invention patent application deemed withdrawn after publication |