CN203068747U - Sound attenuation air duct - Google Patents
Sound attenuation air duct Download PDFInfo
- Publication number
- CN203068747U CN203068747U CN 201220753192 CN201220753192U CN203068747U CN 203068747 U CN203068747 U CN 203068747U CN 201220753192 CN201220753192 CN 201220753192 CN 201220753192 U CN201220753192 U CN 201220753192U CN 203068747 U CN203068747 U CN 203068747U
- Authority
- CN
- China
- Prior art keywords
- outer shell
- sound attenuation
- shell
- air duct
- noise
- 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
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- Duct Arrangements (AREA)
- Exhaust Silencers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a sound attenuation air duct which comprises an outer shell, wherein the outer shell is composed of a straight-line section and a circular arc section, wherein one end portion of the circular arc section is bended, a fibre sound absorbing material layer is arranged on the inner wall of the outer shell, a partition plate is arranged inside the outer shell, the outer shell is divided into two channels by the partition plate, sound attenuation pieces are arranged inside the straight-line sections of the two channels, and a flange is arranged on one end portion which is away from the circular arc section on the outer shell. The sound attenuation air duct is novel in design and convenient to install. The mode of bended pipes is adopted, so the sound attenuation air duct is convenient to install against a wall, stable and reliable and capable of avoiding noise straight-line transmission. The partition plate is arranged inside the outer shell, so that the noise can be divided into two flows, the noise is reduced. The flange is arranged on the outer shell, so that the sound attenuation air duct is convenient to install and fix and capable of improving efficiency. The fibre sound absorbing material layer and the sound attenuation pieces are arranged inside the outer shell, so that the sound attenuation air duct has the function of sound absorbing and good in use effect.
Description
Technical field
The utility model relates to a kind of silencing apparatus, particularly a kind of noise elimination airduct.
Background technology
At present, for the ease of realizing the interior separate ventilation of machine room, generally all adopt at exterior wall and open air vent and blower fan is installed is carried out forced ventilation, but behind the installation blower fan, other noise in fan noise and the machine room will be by air vent to external radiation, external environment is caused noise pollution, also do not have a equipment of eliminating the noise at this noise like specially to occur on the existing market, though some large-scale silencers are arranged because its complex structure makes cost very high, the noise elimination effect is not good yet, and can not well install, stable inadequately after the installation, drop easily, the ventilating opening of existing silencer size is fixing in addition, can not set according to the size in on-the-spot air port, versatility is not strong, therefore, existing silencer can not adapt to people's needs, is badly in need of improving.
The utility model content
The purpose of this utility model just is a kind of modern design is provided, and volume is less, can reduce or eliminate a kind of noise elimination airduct of noise pollution, can effectively solve the problem of above-mentioned existence.
To achieve these goals, the technical solution adopted in the utility model is such: noise elimination airduct of the present utility model, comprise shell, described shell is made of the arc section of straightway and the end bending of one end, outer casing inner wall is provided with the fiber sound-absorbing material layer, is provided with dividing plate in the shell, and dividing plate will be divided into two passages in the shell, be equipped with anechoic sheet in the straightway of two passages, the end away from arc section on the shell is provided with flange.
As preferably, be provided with filter screen in the described shell, filter screen is near flange.
As preferably, the cross section of described shell is circle or rectangle.
Compared with prior art, advantage of the present utility model is: the utility model modern design, and easy for installation, adopt the form of bend pipe, be convenient to install by wall, reliable and stable, and can avoid the noise direct projection, be provided with dividing plate in the shell, can make the noise shunting, reduce noise, shell is provided with flange, be convenient to install and fix, raise the efficiency, be provided with fiber sound-absorbing material layer and bloop in the shell, have sound absorption, result of use is good, be provided with filter screen, avoid mosquito to enter, the cross section of shell is circle or rectangle, be convenient to decide according to actual conditions highly versatile.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, noise elimination airduct of the present utility model comprises shell 1, and described shell 1 is made of the arc section of straightway and the end bending of one end, shell 1 inwall is provided with fiber sound-absorbing material layer 3, be provided with dividing plate 4 in the shell 1, dividing plate 4 is equipped with anechoic sheet 5 with being divided into two passages in the shell 1 in the straightway of two passages, end away from arc section on the shell 1 is provided with flange 2, be provided with filter screen 6 in the described shell 1, filter screen 6 is near flange 2, and the cross section of described shell 1 is circle or rectangle.
During installation, shell 1 is installed by wall, by flange 2 shell 1 and blower fan are fixed then, easy for installation, be provided with dividing plate 4 in the shell 1, can make the noise shunting, reduce noise, be provided with fiber sound-absorbing material layer 3 and bloop 5 in the shell 1, all have sound absorption, acoustically effective is good, be provided with filter screen 6, avoid mosquito to enter, the cross section of shell 1 is circle or rectangle, be convenient to decide according to actual conditions highly versatile.The utility model is applicable to for blowing system, eliminates the noise that building pumping, ventilation machine produces, and the scope of application is wide.
Claims (3)
1. noise elimination airduct, comprise shell, it is characterized in that: described shell is made of the arc section of straightway and the end bending of one end, outer casing inner wall is provided with the fiber sound-absorbing material layer, be provided with dividing plate in the shell, dividing plate is equipped with anechoic sheet with being divided into two passages in the shell in the straightway of two passages, and the end away from arc section on the shell is provided with flange.
2. a kind of noise elimination airduct according to claim 1 is characterized in that: be provided with filter screen in the described shell, the close flange of filter screen.
3. a kind of noise elimination airduct according to claim 1, it is characterized in that: the cross section of described shell is circle or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220753192 CN203068747U (en) | 2012-12-05 | 2012-12-05 | Sound attenuation air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220753192 CN203068747U (en) | 2012-12-05 | 2012-12-05 | Sound attenuation air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203068747U true CN203068747U (en) | 2013-07-17 |
Family
ID=48767526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220753192 Expired - Fee Related CN203068747U (en) | 2012-12-05 | 2012-12-05 | Sound attenuation air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203068747U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889690A (en) * | 2016-06-01 | 2016-08-24 | 四川五环石化装备有限公司 | Bent noise lowering device |
| CN106051999A (en) * | 2016-06-08 | 2016-10-26 | 珠海格力电器股份有限公司 | Mounting structure of air exhaust cover and air cooling outdoor unit |
| CN113383648A (en) * | 2021-06-09 | 2021-09-14 | 洛阳师范学院 | Ventilation pipe for sweet potato cellar |
-
2012
- 2012-12-05 CN CN 201220753192 patent/CN203068747U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889690A (en) * | 2016-06-01 | 2016-08-24 | 四川五环石化装备有限公司 | Bent noise lowering device |
| CN106051999A (en) * | 2016-06-08 | 2016-10-26 | 珠海格力电器股份有限公司 | Mounting structure of air exhaust cover and air cooling outdoor unit |
| CN113383648A (en) * | 2021-06-09 | 2021-09-14 | 洛阳师范学院 | Ventilation pipe for sweet potato cellar |
| CN113383648B (en) * | 2021-06-09 | 2022-06-28 | 洛阳师范学院 | A kind of ventilation pipe for sweet potato cellar |
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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: 20130717 Termination date: 20131205 |