CN203430602U - Marine exhaust pipeline silencer - Google Patents
Marine exhaust pipeline silencer Download PDFInfo
- Publication number
- CN203430602U CN203430602U CN201320507440.7U CN201320507440U CN203430602U CN 203430602 U CN203430602 U CN 203430602U CN 201320507440 U CN201320507440 U CN 201320507440U CN 203430602 U CN203430602 U CN 203430602U
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- CN
- China
- Prior art keywords
- cylindrical shell
- cylinder body
- separate space
- end plate
- communicated
- Prior art date
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- Expired - Fee Related
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a marine exhaust pipeline silencer. The marine exhaust pipeline silencer comprises a cylinder body (4), wherein a gas inlet end plate (3) and a gas outlet end plate (7) are arranged at the two ends of the cylinder body (4) respectively, a gas inlet pipe (2) and a gas outlet pipe (8) are arranged on the gas inlet end plate (3) and the gas outlet end plate (7) respectively, a gas inlet flange (1) is communicated with the cylinder body (4) through the gas inlet pipe (2), and a gas outlet flange (9) is communicated with the cylinder body (4) through the gas outlet pipe (8). Sound eliminating pipes (5) and a cavity partition plate (6) are arranged in the cylinder body (4), the gas inlet end of the cylinder body (4) and the gas outlet end of the cylinder body (4) are separated into two chambers through the cavity partition plate (6), the sound eliminating pipes (5) penetrate through the cavity partition plate (6) and enable the two cavities to be communicated, and a plurality of circular holes are evenly distributed in the circumferential wall of each sound eliminating pipe (5). The spark-eliminating silencer can effectively reduce noise produced in the tail gas exhaust process of a diesel engine.
Description
Technical field
The utility model relates to a kind of exhaust duct silencer peculiar to vessel.
Background technique
Diesel engine unit is the core drive that boats and ships are navigated by water, also be the core source of ship power supply, but diesel engine unit is in operation and produces quite high noise, wherein the noise in exhaust emissions process has occupied quite a few, to environment, brought pollution, and severe exacerbation crewman's work living environment, how to reduce diesel engine unit noise in running, be an importance of improvement work and living environment.
Summary of the invention
In order to address the above problem, the utility model provides a kind of exhaust duct silencer peculiar to vessel, can effectively reduce the noise of diesel engine vent gas in discharge process.
The utility model has adopted following technological scheme: a kind of exhaust duct silencer peculiar to vessel, it comprises cylindrical shell, inlet flange, the flange of giving vent to anger, at the two ends of cylindrical shell, be provided with inlet end plate and the end plate of giving vent to anger, on described inlet end plate and the end plate of giving vent to anger, be respectively equipped with suction tude and steam outlet pipe, inlet flange is communicated with cylindrical shell by suction tude, and the flange of giving vent to anger is communicated with cylindrical shell by steam outlet pipe; It is characterized in that being provided with hush pipe and separate space plate in described cylindrical shell, described separate space plate is separated into two chambers by the air inlet and outlet end of cylindrical shell, and described hush pipe runs through separate space plate and two chambers are communicated with, and is evenly distributed with some circular holes in the peripheral wall of described hush pipe.
In described cylindrical shell, be provided with three honeycomb ducts, three honeycomb ducts are ringwise equably through separate space plate; In described cylindrical shell, be provided with four honeycomb ducts, four honeycomb ducts are ringwise equably through separate space plate; In described cylindrical shell, be provided with six honeycomb ducts, six honeycomb ducts are ringwise equably through separate space plate; The outside of described cylindrical shell is provided with heat insulation layer.
The utlity model has following beneficial effect: the utility model can effectively reduce the noise of diesel engine in exhaust emissions process, air-flow comes in to discharge to steam outlet pipe from suction tude, altogether through the sudden change in four subchannel cross sections, sound energy attenuation is obvious, circular hole on hush pipe circumference forms the similar pneumatic spring of closed cavity, there is certain elasticity, when sound wave passes to accent, under the effect of sound wave, air column produces vibration, during vibration and the friction of accent wall make a part of acoustic energy be converted into heat energy and dissipate; Sudden change due to acoustic impedance simultaneously makes sound wave that reflection and interference phenomenon occur, and causes sound energy attenuation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model provides a kind of exhaust duct silencer peculiar to vessel, it comprises cylindrical shell 4, inlet flange 1, the flange 9 of giving vent to anger, at the two ends of cylindrical shell 4, be provided with inlet end plate 3 and the end plate 7 of giving vent to anger, on described inlet end plate 3 and the end plate 7 of giving vent to anger, be respectively equipped with suction tude 2 and steam outlet pipe 8, inlet flange 1 is communicated with cylindrical shell 4 by suction tude 2, and the flange 9 of giving vent to anger is communicated with cylindrical shell 4 by steam outlet pipe 8, and the outside of cylindrical shell 4 is provided with heat insulation layer 10, in described cylindrical shell 4, be provided with hush pipe 5 and separate space plate 6, described separate space plate 6 is separated into two chambers by the air inlet and outlet end of cylindrical shell 4, described hush pipe 5 runs through separate space plate 6 and two chambers is communicated with, in the peripheral wall of described hush pipe 5, be evenly distributed with some circular holes, described cylindrical shell 4 is interior can be provided with three, four, five or six honeycomb ducts 5, the honeycomb duct 5 of varying number is ringwise equably through separate space plate 6, in cylindrical shell 4, be provided with four honeycomb ducts 5, four honeycomb ducts 5 are ringwise equably through separate space plate 6, in cylindrical shell 4, be provided with five honeycomb ducts 5, five honeycomb ducts 5 are provided with six honeycomb ducts 5 through separate space plate 6 ringwise equably in cylindrical shell 4, six honeycomb ducts 5 are ringwise equably through separate space plate 6.
The utility model principle is as follows: when the sound wave in exhaust process enters left chamber from suction tude, the unexpected expansion of channel cross-section, cause the acoustic impedance sudden change of pipeline, make to can't pass silencing apparatus and be reflected back sound source along the sound wave of some frequency of pipe transmmision, because sound wave can't pass silencing apparatus, also just pass not out, thereby reach the object of noise elimination, structure of the present utility model, air-flow comes in to discharge to steam outlet pipe from suction tude, and through the sudden change in four subchannel cross sections, sound energy attenuation is obvious altogether.Meanwhile, the circular hole on hush pipe circumference forms the similar pneumatic spring of closed cavity, has certain elasticity, when sound wave passes to accent, under the effect of sound wave, air column produces vibration, during vibration and the friction of accent wall make a part of acoustic energy be converted into heat energy and dissipate; Sudden change due to acoustic impedance simultaneously makes sound wave that reflection and interference phenomenon occur, and causes sound energy attenuation.
Claims (5)
1. an exhaust duct silencer peculiar to vessel, it comprises cylindrical shell (4), inlet flange (1), the flange of giving vent to anger (9), at the two ends of cylindrical shell (4), be provided with inlet end plate (3) and the end plate of giving vent to anger (7), on described inlet end plate (3) and the end plate of giving vent to anger (7), be respectively equipped with suction tude (2) and steam outlet pipe (8), inlet flange (1) is communicated with cylindrical shell (4) by suction tude (2), and the flange of giving vent to anger (9) is communicated with cylindrical shell (4) by steam outlet pipe (8); It is characterized in that being provided with in described cylindrical shell (4) hush pipe (5) and separate space plate (6), described separate space plate (6) is separated into two chambers by the air inlet and outlet end of cylindrical shell (4), described hush pipe (5) runs through separate space plate (6) and two chambers is communicated with, and in the peripheral wall of described hush pipe (5), is evenly distributed with some circular holes.
2. a kind of exhaust duct silencer peculiar to vessel according to claim 1, is characterized in that being provided with three honeycomb ducts (5) in described cylindrical shell (4), and three honeycomb ducts (5) are ringwise equably through separate space plate (6).
3. a kind of exhaust duct silencer peculiar to vessel according to claim 1, is characterized in that being provided with four honeycomb ducts (5) in described cylindrical shell (4), and four honeycomb ducts (5) are ringwise equably through separate space plate (6).
4. a kind of exhaust duct silencer peculiar to vessel according to claim 1, is characterized in that being provided with six honeycomb ducts (5) in described cylindrical shell (4), and six honeycomb ducts (5) are ringwise equably through separate space plate (6).
5. a kind of exhaust duct silencer peculiar to vessel according to claim 1, is characterized in that the outside of described cylindrical shell (4) is provided with heat insulation layer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320507440.7U CN203430602U (en) | 2013-08-20 | 2013-08-20 | Marine exhaust pipeline silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320507440.7U CN203430602U (en) | 2013-08-20 | 2013-08-20 | Marine exhaust pipeline silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430602U true CN203430602U (en) | 2014-02-12 |
Family
ID=50059647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320507440.7U Expired - Fee Related CN203430602U (en) | 2013-08-20 | 2013-08-20 | Marine exhaust pipeline silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847504A (en) * | 2021-09-30 | 2021-12-28 | 英辉南方造船（广州番禺）有限公司 | Be applied to silencing device in air pipe |
-
2013
- 2013-08-20 CN CN201320507440.7U patent/CN203430602U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847504A (en) * | 2021-09-30 | 2021-12-28 | 英辉南方造船（广州番禺）有限公司 | Be applied to silencing device in air 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: 20140212 Termination date: 20150820 |
|
| EXPY | Termination of patent right or utility model |