CN201184476Y - Pipeline silencer - Google Patents
Pipeline silencer Download PDFInfo
- Publication number
- CN201184476Y CN201184476Y CNU2008200312677U CN200820031267U CN201184476Y CN 201184476 Y CN201184476 Y CN 201184476Y CN U2008200312677 U CNU2008200312677 U CN U2008200312677U CN 200820031267 U CN200820031267 U CN 200820031267U CN 201184476 Y CN201184476 Y CN 201184476Y
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- CN
- China
- Prior art keywords
- noise elimination
- muffling
- cavity
- air
- chamber
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a duct muffler, which comprises an air admission chamber (1), a muffling chamber (2) and an air outlet (8), wherein, pipelines are connected with two ends of the duct muffler; a plurality of muffling linings (3) are arranged inside the muffling chamber (2) and fixed in a cavity body; an air admission dispersion cover (4) is arranged on the air admission chamber (1); a plurality of air admission holes (5) are formed on the air admission dispersion cover (4); a muffling material layer (6) is attached to the inside wall of the air admission chamber (1) and the muffling chamber (2); the upper layer of the muffling material layer (6) is a perforated meshed board (7). The duct muffler is characterized in that the muffling chamber (2) is composed of a plurality of muffling chamber sections (13); each muffling lining (3) of the previous muffling chamber section (13) is fixed with each muffling lining (3) of the next muffling chamber section (13) in a transplacement permutation manner. In the duct muffler, the series connection of the muffling chamber sections (13) and the transplacement permutation design of the muffling linings (3) of the adjacent muffling chamber sections (13) can effectively rapidly reduce the air-stream noise flowing in high flow velocity.
Description
Technical field
The utility model relates to a kind of duct attenuation device.
Background technique
The silencer that is applied at present on the gas pipe line adopts mostly directly at high noisy pipeline place inwall stickup muffler material, the sheet metal that the outside is coated porous again, this noise reduction mode area that absorbs sound is little, and airspeed is very high and fast by the noise reduction section, thereby erasure effect is poor.
Summary of the invention
Goal of the invention of the present utility model provides a kind of pipe muffler with good erasure effect that can reduce airspeed and increase the noise reduction area.
The technical solution adopted in the utility model is:
A kind of duct attenuation device, two ends are connected with pipeline, be divided into air-inlet cavity, noise elimination cavity and air outlet, be provided with a plurality of noise elimination inner bags in the described noise elimination cavity and be fixed in the cavity, air-inlet cavity is provided with air inlet and disperses cover, described air inlet disperses to have a plurality of inlet holes on the cover, air-inlet cavity and noise elimination cavity madial wall are with a muffler material layer, the muffler material upper strata is the porous web plate, described noise elimination cavity is made up of a plurality of noise elimination cavity sections, and the noise elimination inner bag of preceding noise elimination cavity section and the dislocation of the noise elimination inner bag of a back noise elimination cavity section are arranged fixing.
Described noise elimination cavity section is 2-5.
Described noise elimination inner bag is made up of a plurality of V-type plates, spacer, muffler material, porous web plate, fixed support and protective rope, described V-type plate inboard is pasted with the muffler material layer, skin is coated with the porous web plate and is fixed on the V-type plate, described spacer passes and is fixed on adjacent V-type plate and is positioned at the support bracket fastened central authorities at the V-type plate back side, and described V-type plate and fixed support transverse ends all are fixed with protective rope.
The angle [alpha] of described V-type plate is 60 °-160 °.
Air-inlet cavity and noise elimination cavity madial wall are with one deck muffler material, and the muffler material upper strata is the porous web plate.
Described air-inlet cavity profile is square.
Described noise elimination cavity profile is square.
Noise elimination cavity of the present utility model is made up of a plurality of noise elimination cavity sections, the noise elimination inner bag of a preceding noise elimination cavity section and the dislocation of the noise elimination inner bag of a back noise elimination cavity section are arranged fixing, the air-flow that disperses cover to come in from air inlet is farthest disperseed and weaken speed, and contact fully to reach good noise elimination effect with the noise elimination inner bag.Noise elimination inner bag V-type plate and be spaced apart unique design that support is cascaded and make constantly collision and turning in the groove of V-type of air-flow reaches the effect that reduces noise.Described spacer passes and is fixed on adjacent V-type plate and is positioned at the support bracket fastened central authorities at the V-type plate back side, described V-type plate and fixed support transverse ends all are fixed with protective rope, so effectively fixing V-type plate and cover layer, and prevented that air-flow is excessive and make the V-type plate fracture.
The utility model has the advantages that the series connection of a plurality of noise elimination cavity sections and the noise elimination inner bag dislocation arrangement design of adjacent noise elimination cavity section can effectively make the pneumatic noise of big flow velocity reduce rapidly.The utility model is small and exquisite, easy for installation, has significantly reduced the application of muffler material, thereby has reduced user cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of noise elimination inner bag.
Wherein: 1 is air-inlet cavity, and 2 is noise elimination cavity, and 3 are the noise elimination inner bag, and 4 for air inlet disperses cover, and 5 is inlet hole, and 6 is the muffler material layer, and 7 is the porous web plate, and 8 is the air outlet, and 9 is V-type plate, and 10 is spacer, and 11 is fixed support, and 12 is protective rope, and 13 is the noise elimination cavity section.
Embodiment
As illustrated in fig. 1 and 2, the utility model two ends are connected with pipeline, be divided into air-inlet cavity 1, noise elimination cavity 2 and air outlet 8, the profile of air-inlet cavity 1 and noise elimination cavity 2 is square, be provided with a plurality of noise elimination inner bags 3 in the noise elimination cavity 2 and be fixed in the cavity, air-inlet cavity 1 is provided with air inlet and disperses cover 4, air inlet disperses to have a plurality of inlet holes 5 on the cover 4, air-inlet cavity 1 and noise elimination cavity 2 madial walls are with one deck muffler material 6, muffler material 6 upper stratas are porous web plate 7, noise elimination cavity is made up of 3 noise elimination cavity sections 13, and the noise elimination inner bag 3 of preceding noise elimination cavity section 13 is arranged fixing with 3 dislocation of the noise elimination inner bag of a back noise elimination cavity section 13.V-type plate 9 inboards of noise elimination inner bag 3 are pasted with muffler material 6, skin is coated with porous web plate 7 and is fixed on the V-type plate 9, spacer 10 passes and is fixed on adjacent V-type plate 9 and is positioned at the central authorities of the fixed support 11 at V-type plate 9 back sides, and V-type plate 9 and fixed support 11 transverse ends all are fixed with protective rope 12.The angle [alpha] of V-type plate is 120 °.
Claims (6)
1, a kind of duct attenuation device, two ends are connected with pipeline, be divided into air-inlet cavity, noise elimination cavity and air outlet, be provided with a plurality of noise elimination inner bags in the described noise elimination cavity and be fixed in the cavity, air-inlet cavity is provided with air inlet and disperses cover, and described air inlet disperses to have a plurality of inlet holes on the cover, air-inlet cavity and noise elimination cavity madial wall are with the muffler material layer, the muffler material upper strata is the porous web plate, it is characterized in that described noise elimination cavity is made up of a plurality of noise elimination cavity sections, and the noise elimination inner bag dislocation of adjacent two noise elimination cavity sections is arranged fixing.
2, duct attenuation device according to claim 1 is characterized in that described noise elimination cavity section is 2-5.
3, duct attenuation device according to claim 1, it is characterized in that described noise elimination inner bag is made up of a plurality of V-type plates, spacer, muffler material, porous web plate, fixed support and protective rope, described V-type plate inboard is pasted with the muffler material layer, skin is coated with the porous web plate and is fixed on the V-type plate, described spacer passes and is fixed on adjacent V-type plate and is positioned at the support bracket fastened central authorities at the V-type plate back side, and described V-type plate and fixed support transverse ends all are fixed with protective rope.
4, duct attenuation device according to claim 3, the angle [alpha] that it is characterized in that described V-type plate are 60 °-160 °.
5,, it is characterized in that described air-inlet cavity profile is square according to claim 1,2 or 3 described duct attenuation devices.
6,, it is characterized in that described noise elimination cavity profile is square according to claim 1,2 or 3 described duct attenuation devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200312677U CN201184476Y (en) | 2008-01-18 | 2008-01-18 | Pipeline silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200312677U CN201184476Y (en) | 2008-01-18 | 2008-01-18 | Pipeline silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184476Y true CN201184476Y (en) | 2009-01-21 |
Family
ID=40272215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200312677U Expired - Fee Related CN201184476Y (en) | 2008-01-18 | 2008-01-18 | Pipeline silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201184476Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711984A (en) * | 2012-09-28 | 2014-04-09 | 费希尔控制国际公司 | Simplified modal attenuator |
| CN104006259A (en) * | 2014-05-20 | 2014-08-27 | 国家电网公司 | Pump storage unit labyrinth ring water supply pipe noise reduction system |
| CN104455900A (en) * | 2014-11-28 | 2015-03-25 | 连云港正航电力节能技术有限公司 | Multifunctional composite pipe silencer |
| CN104595251A (en) * | 2014-11-27 | 2015-05-06 | 深圳市科德声学技术有限公司 | Silencer for lampblack fan |
| CN109058644A (en) * | 2018-08-30 | 2018-12-21 | 中国舰船研究设计中心 | Rectifier type seawaterline silencer with center utricule |
| CN110966263A (en) * | 2019-11-26 | 2020-04-07 | 重庆美的通用制冷设备有限公司 | Noise eliminator, noise eliminator assembly, axial flow fan and air conditioner |
-
2008
- 2008-01-18 CN CNU2008200312677U patent/CN201184476Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711984A (en) * | 2012-09-28 | 2014-04-09 | 费希尔控制国际公司 | Simplified modal attenuator |
| CN103711984B (en) * | 2012-09-28 | 2018-04-13 | 费希尔控制国际公司 | Simplified modal attenuator |
| CN104006259A (en) * | 2014-05-20 | 2014-08-27 | 国家电网公司 | Pump storage unit labyrinth ring water supply pipe noise reduction system |
| CN104006259B (en) * | 2014-05-20 | 2016-03-02 | 国家电网公司 | Pump-storage generator labyrinth ring water supply line noise reduction system |
| CN104595251A (en) * | 2014-11-27 | 2015-05-06 | 深圳市科德声学技术有限公司 | Silencer for lampblack fan |
| CN104455900A (en) * | 2014-11-28 | 2015-03-25 | 连云港正航电力节能技术有限公司 | Multifunctional composite pipe silencer |
| CN109058644A (en) * | 2018-08-30 | 2018-12-21 | 中国舰船研究设计中心 | Rectifier type seawaterline silencer with center utricule |
| CN109058644B (en) * | 2018-08-30 | 2020-06-19 | 中国舰船研究设计中心 | Rectifier type seawater pipeline silencer with central bag body |
| CN110966263A (en) * | 2019-11-26 | 2020-04-07 | 重庆美的通用制冷设备有限公司 | Noise eliminator, noise eliminator assembly, axial flow fan and air conditioner |
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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: 20090121 Termination date: 20150118 |
|
| EXPY | Termination of patent right or utility model |