CN202707633U - Sound attenuation fan machine - Google Patents
Sound attenuation fan machine Download PDFInfo
- Publication number
- CN202707633U CN202707633U CN 201220383311 CN201220383311U CN202707633U CN 202707633 U CN202707633 U CN 202707633U CN 201220383311 CN201220383311 CN 201220383311 CN 201220383311 U CN201220383311 U CN 201220383311U CN 202707633 U CN202707633 U CN 202707633U
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- CN
- China
- Prior art keywords
- noise reduction
- sound attenuation
- barrel body
- ring
- cylinder
- 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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Abstract
The utility model discloses a sound attenuation fan machine. The sound attenuation fan machine comprises a fan machine. One end of the fan machine is an air inlet, and the other end of the fan machine is an air outlet. A sound attenuation ring is arranged inside the air inlet in a sleeved mode. The sound attenuation ring is in the shape of a barrel body. One end of the barrel body is a big mouth, and the other end of the barrel body is a small mouth. High speed airflow is discharged from the air outlet by passing through the big mouth and the small mouth in sequence. Concretely, the sound attenuation ring is the cone-shaped barrel body, and the barrel body is provided with a surface layer, a sound attenuation layer and a sound absorption layer in sequence from the outside to the inside. Due to the fact that the sound attenuation ring is arranged inside the air inlet in a sleeved mode, when the high speed airflow passes through the small mouth of the barrel body from the big mouth of the barrel body, the sound attenuation ring can effectively decrease vibration caused by the high speed airflow.
Description
Technical field
The utility model relates to a kind of blower fan, particularly a kind of noise reduction fans that can reduce noise.
Background technique
At present, mainly be to come air draft or air-supply to reach the purpose of exhaust ventilation by blower fan is installed in the not smooth places of ventilation such as subterranean tunnel, underground department store, underground storehouses.
Existing blower fan comprises circular tube shaped housing, impeller and motor, and wherein the anchor ring of circular tube shaped housing is along axial straight flange form.When wind speed was higher, the anchor ring of straight flange caused easily fierce vibration and produces higher noise under high velocity air impacts, and then affected the working life of blower fan, and may bring the use safety problem.
The model utility content
For the deficiencies in the prior art, the utility model provides a kind of rational in infrastructure, noise reduction fans of reducing noise.
The utility model is by following technical solution:
A kind of noise reduction fans comprise blower fan, and blower fan one end is intake grill, the other end is exhaust outlet, is arranged with the noise reduction ring in the described intake grill, and this noise reduction ring is cylinder, this cylinder one end is large mouthful, and the other end is osculum, and wind is discharged from described exhaust outlet through excessive mouth, osculum successively.
Further, the described noise reduction ring cylinder that is taper.
Further, described cylinder ecto-entad is provided with top layer, noise reduction layer and sound-absorption layer successively.
Further, the described top layer conical surface is provided with mesh.
Further, described top layer adopts mesh material to make; Described noise reduction layer adopts wad to make; Described sound-absorption layer adopts acoustical cotton to make.
The utility model passes through technique scheme, its beneficial effect is: be arranged with the noise reduction ring in intake grill, this noise reduction ring is the cylinder of taper, and when high velocity air passed through osculum from large mouthful of cylinder, conical surface can effectively reduce the vibration that causes because of high velocity air.Secondly, because mesh material is adopted on the top layer, be conducive to increase the erasure effect of nexine wad and acoustical cotton; The noise reduction layer adopts wad, the erasure effect that tool is certain, and the acoustical cotton of protection nexine is not subjected to the impact of airflow; Sound-absorption layer adopts the acoustical cotton of high-quality, can effectively absorb the gas shock that the blower fan side is caused from air-flow.
Description of drawings
Fig. 1 is the utility model sectional view.
Fig. 2 is the decomposition chart of the utility model noise reduction ring.
Fig. 3 is the sectional view of the utility model noise reduction ring.
Among the figure: 1, noise reduction ring, 2, the top layer, 21, mesh, 3, the noise reduction layer, 4, sound-absorption layer, 5, blower fan, 51, motor, 52, impeller.
Embodiment
Now by the drawings and specific embodiments the utility model is described in further details:
Embodiment, as shown in Figure 1 to Figure 3, a kind of noise reduction fans, comprise blower fan 5, as seeing among Fig. 1, blower fan is provided with impeller 52, motor 51, and blower fan one end is intake grill, the other end is exhaust outlet, be arranged with noise reduction ring 1 in the described intake grill, this noise reduction ring 1 is cylinder, and this cylinder one end is large mouthful, the other end is osculum, and wind is discharged from described exhaust outlet through excessive mouth, osculum successively.Described noise reduction ring 1 is the cylinder of taper.Described cylinder ecto-entad is provided with top layer 2, noise reduction layer 3 and sound-absorption layer 4 successively.Described top layer 2 conical surfaces are provided with mesh 21, and wherein said top layer 2 adopts mesh material to make; Described noise reduction layer 3 adopts wad to make; Described sound-absorption layer 4 adopts acoustical cotton to make.
The utility model is by being arranged with noise reduction ring 1 in intake grill, this noise reduction ring 1 is the cylinder of taper, and when high velocity air passed through osculum from large mouthful of cylinder, conical surface can effectively reduce the vibration that causes because of high velocity air.Specific, because mesh material is adopted on top layer 2, be conducive to increase the erasure effect of nexine wad and acoustical cotton; Noise reduction layer 3 adopts wad, the erasure effect that tool is certain, and the acoustical cotton of protection nexine is not subjected to the impact of airflow; Sound-absorption layer 4 adopts the acoustical cotton of high-quality, can effectively absorb the gas shock that the blower fan side is caused from air-flow.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (5)
1. noise reduction fans, comprise blower fan, blower fan one end is intake grill, the other end is exhaust outlet, it is characterized in that: be arranged with the noise reduction ring in the described intake grill, this noise reduction ring is cylinder, and this cylinder one end is large mouthful, the other end is osculum, and high velocity air is discharged from described exhaust outlet through excessive mouth, osculum successively.
2. a kind of noise reduction fans as claimed in claim 1, it is characterized in that: described noise reduction ring is the cylinder of taper.
3. a kind of noise reduction fans as claimed in claim 1 or 2, it is characterized in that: described cylinder ecto-entad is provided with top layer, noise reduction layer and sound-absorption layer successively.
4. a kind of noise reduction fans as claimed in claim 3, it is characterized in that: the described top layer conical surface is provided with mesh.
5. a kind of noise reduction fans as claimed in claim 4, it is characterized in that: described top layer adopts mesh material to make; Described noise reduction layer adopts wad to make; Described sound-absorption layer adopts acoustical cotton to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383311 CN202707633U (en) | 2012-08-04 | 2012-08-04 | Sound attenuation fan machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220383311 CN202707633U (en) | 2012-08-04 | 2012-08-04 | Sound attenuation fan machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707633U true CN202707633U (en) | 2013-01-30 |
Family
ID=47587940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220383311 Expired - Fee Related CN202707633U (en) | 2012-08-04 | 2012-08-04 | Sound attenuation fan machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707633U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587927A (en) * | 2017-09-22 | 2018-01-16 | 江苏江海船舶设备制造有限公司 | One kind can cooling, silencing device |
| CN106015111B (en) * | 2016-05-31 | 2018-09-25 | 冯洁莹 | A kind of mute wind turbine |
-
2012
- 2012-08-04 CN CN 201220383311 patent/CN202707633U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015111B (en) * | 2016-05-31 | 2018-09-25 | 冯洁莹 | A kind of mute wind turbine |
| CN107587927A (en) * | 2017-09-22 | 2018-01-16 | 江苏江海船舶设备制造有限公司 | One kind can cooling, silencing device |
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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: 20130130 Termination date: 20150804 |
|
| EXPY | Termination of patent right or utility model |