CN2773455Y - Joint sealing impendant composite silencer - Google Patents
Joint sealing impendant composite silencer Download PDFInfo
- Publication number
- CN2773455Y CN2773455Y CN 200520039736 CN200520039736U CN2773455Y CN 2773455 Y CN2773455 Y CN 2773455Y CN 200520039736 CN200520039736 CN 200520039736 CN 200520039736 U CN200520039736 U CN 200520039736U CN 2773455 Y CN2773455 Y CN 2773455Y
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- CN
- China
- Prior art keywords
- cylinder body
- outer cylinder
- silencing apparatus
- interior conduit
- utility
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- 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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- Exhaust Silencers (AREA)
- Pipe Accessories (AREA)
Abstract
The utility model discloses a dense joint impedance composite silencer, which comprises an outer cylinder body and an inner pipeline, wherein the inner pipeline is arranged in the outer cylinder body; both ends of the inner pipeline extend out of the outer cylinder body and are connected with flanges. An inner pipeline wall is provided with silencing holes. In addition, a plurality of tapered spacer plates are also arranged between the inner pipeline and the outer cylinder body and provided with dense joint small intervals apart. A sound absorbing material layer can also be filled between the pipeline and the outer cylinder body. Thus, under the composite action of the tapered spacer plates and a sound absorbing material, the utility model can lower noise and greatly reduce the structure size of an appearance, compared with a traditional muffler.
Description
Technical field
The utility model relates to the device of eliminating or reducing duct noise, more specifically refers to a kind of close joint impedance complex formula silencing apparatus.
Background technique
That the duct attenuation device that tradition is used for that pipeline is eliminated and reduces noise is divided into is resistive, resistance or impedance tandem, and this class silencing apparatus is generally used for the NR noise reduction of pipeline, and for example, boiler room, Generators are advanced, air draft Fan pipeline noise; Compressor, diesel engine duct noise; The duct noise of the overwhelming majority such as air-conditioning duct noise is eliminated and is removed and reduction.The structure of traditional silencing apparatus generally is made of silencing apparatus outer cylinder body and interior conduit, and it is connected in the pipeline of the said equipment, to eliminate the noise that the said equipment sends.As any one technology, there is the shortcoming that the noise elimination effect is relatively poor, size is bigger than normal in traditional silencing apparatus.
Summary of the invention
The purpose of this utility model is the shortcoming that exists at traditional duct attenuation device, and a kind of close joint impedance complex formula silencing apparatus is provided.
To achieve these goals, the utility model adopts following technological scheme:
This close joint impedance complex formula silencing apparatus comprises outer cylinder body, interior conduit, and interior conduit places in the outer cylinder body, and the interior conduit two ends stretch out in outside the outer cylinder body and are connected with flange, are laid with bloop on the inner duct wall,
Wherein:
Also be provided with the several piece conical baffle between interior conduit and outer cylinder body, each conical baffle is the closely-spaced setting of close joint each other.
The orientation of described several piece conical baffle is identical.
Also can fill out between described interior conduit and the outer cylinder body and establish sound-absorbing material layer.
In the technical solution of the utility model, silencing apparatus has comprised outer cylinder body, interior conduit, interior conduit places in the outer cylinder body, the interior conduit two ends stretch out in outside the outer cylinder body and are connected with flange, be laid with bloop on the inner duct wall, in addition, between interior conduit and outer cylinder body, also be provided with the several piece conical baffle, each conical baffle is the closely-spaced setting of close joint each other, and also can fill out between interior conduit and outer cylinder body and establish sound-absorbing material layer.Therefore, silencing apparatus of the present utility model is under the compound action of conical baffle and sound-absorbing material, and noise has obtained reducing better, compares with traditional silencing apparatus, and contour structure size greatly reduces.
Description of drawings
Fig. 1 is the three-dimensional cross-sectional schematic of the utility model silencing apparatus.
Fig. 2 is the construction profile schematic representation of the utility model silencing apparatus.
Fig. 3 is the internal structure schematic representation of the utility model silencing apparatus.
Embodiment
For further specifying above-mentioned purpose of the present utility model, technological scheme and effect, in conjunction with above-mentioned each figure the utility model is described in detail by the following examples.
See also Fig. 1 and in conjunction with shown in Figure 2, close joint impedance complex formula silencing apparatus of the present utility model is the same with traditional silencing apparatus, it also comprises outer cylinder body 1, interior conduit 2, interior conduit 2 places in the outer cylinder body 1, interior conduit 2 two ends stretch out in outside the outer cylinder body 1 and are connected with adpting flange 3, and flange 3 is used to connect silencing apparatus pipeline in addition.Be laid with several bloops 4 on interior conduit 2 walls, bloop 4 is close shape regular distribution also can be irregular distribution.
Different is this silencing apparatus, also is provided with several piece conical baffle 5 between its interior conduit 2 and the outer cylinder body 1, and having shown among Fig. 1 has four conical baffles, and the quantity of conical baffle 5 is decided according to the size of silencing apparatus.Each conical baffle 5 is the closely-spaced setting of close joint each other, and 5 orientations of several piece conical baffle are identical, and promptly small-bore direction facing one direction.
Please again in conjunction with shown in Figure 3,
Also can fill out between described interior conduit 2 and the outer cylinder body 1 and establish sound-absorbing material layer 6, sound-absorbing material layer 6 is also separated by conical baffle 5 simultaneously, and the setting of sound-absorbing material layer 6 can increase acoustically effective.
Silencing apparatus of the present utility model can be used for the NR noise reduction of more multi-field pipeline, for example, boiler room, Generators are advanced, air draft Fan pipeline, compressor, diesel engine pipeline, air-conditioning duct, the noise of these pipelines can obtain reducing better under the compound action of conical baffle and sound-absorbing material, have under the same noise reduction effect, its contour structure size can be done forr a short time.
Certainly, those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claims the above embodiment's variation, modification.
Claims (3)
1, a kind of close joint impedance complex formula silencing apparatus,
This silencing apparatus comprises outer cylinder body, interior conduit, and interior conduit places in the outer cylinder body, and the interior conduit two ends stretch out in outside the outer cylinder body and are connected with flange, are laid with bloop on the inner duct wall,
It is characterized in that:
Also be provided with the several piece conical baffle between interior conduit and outer cylinder body, each conical baffle is the closely-spaced setting of close joint each other.
2, close joint impedance complex formula silencing apparatus as claimed in claim 1,
It is characterized in that:
The orientation of described several piece conical baffle is identical.
3, close joint impedance complex formula silencing apparatus as claimed in claim 1 or 2,
It is characterized in that:
Also can fill out between described interior conduit and the outer cylinder body and establish sound-absorbing material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520039736 CN2773455Y (en) | 2005-02-23 | 2005-02-23 | Joint sealing impendant composite silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520039736 CN2773455Y (en) | 2005-02-23 | 2005-02-23 | Joint sealing impendant composite silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2773455Y true CN2773455Y (en) | 2006-04-19 |
Family
ID=36708719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520039736 Expired - Fee Related CN2773455Y (en) | 2005-02-23 | 2005-02-23 | Joint sealing impendant composite silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2773455Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453931C (en) * | 2006-08-17 | 2009-01-21 | 浙江盾安人工环境设备股份有限公司 | Noise reducer for air conditioner, filter and filter drying |
| CN102818711A (en) * | 2012-01-15 | 2012-12-12 | 洛阳理工学院 | Silencer performance testing device |
| CN103411089A (en) * | 2013-07-09 | 2013-11-27 | 中国船舶重工集团公司第七二五研究所 | Damping sleeve for metal pipe vibration and noise reduction and coating method |
| CN104989494A (en) * | 2015-06-16 | 2015-10-21 | 华晨汽车集团控股有限公司 | Multicavity resonance muffler |
| CN108836630A (en) * | 2018-06-28 | 2018-11-20 | 广东工业大学 | A kind of noise elimination structure noiseproof earplug |
| CN110848496A (en) * | 2018-08-20 | 2020-02-28 | 波音公司 | Sound absorption pipeline for environment control system |
-
2005
- 2005-02-23 CN CN 200520039736 patent/CN2773455Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453931C (en) * | 2006-08-17 | 2009-01-21 | 浙江盾安人工环境设备股份有限公司 | Noise reducer for air conditioner, filter and filter drying |
| CN102818711A (en) * | 2012-01-15 | 2012-12-12 | 洛阳理工学院 | Silencer performance testing device |
| CN102818711B (en) * | 2012-01-15 | 2015-11-04 | 洛阳理工学院 | A kind of Muffler Performance test unit |
| CN103411089A (en) * | 2013-07-09 | 2013-11-27 | 中国船舶重工集团公司第七二五研究所 | Damping sleeve for metal pipe vibration and noise reduction and coating method |
| CN103411089B (en) * | 2013-07-09 | 2015-06-03 | 中国船舶重工集团公司第七二五研究所 | Damping sleeve for metal pipe vibration and noise reduction and coating method |
| CN104989494A (en) * | 2015-06-16 | 2015-10-21 | 华晨汽车集团控股有限公司 | Multicavity resonance muffler |
| CN108836630A (en) * | 2018-06-28 | 2018-11-20 | 广东工业大学 | A kind of noise elimination structure noiseproof earplug |
| CN110848496A (en) * | 2018-08-20 | 2020-02-28 | 波音公司 | Sound absorption pipeline for environment control system |
| CN110848496B (en) * | 2018-08-20 | 2022-09-06 | 波音公司 | Sound absorption pipeline for environment control system |
| US11739973B2 (en) | 2018-08-20 | 2023-08-29 | The Boeing Company | Sound absorbing duct for environmental control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060419 Termination date: 20100223 |