CN204100512U - A kind of noise elimination wind conduit - Google Patents
A kind of noise elimination wind conduit Download PDFInfo
- Publication number
- CN204100512U CN204100512U CN201420650955.7U CN201420650955U CN204100512U CN 204100512 U CN204100512 U CN 204100512U CN 201420650955 U CN201420650955 U CN 201420650955U CN 204100512 U CN204100512 U CN 204100512U
- Authority
- CN
- China
- Prior art keywords
- noise elimination
- air
- wind conduit
- flow
- elimination wind
- 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 provides a kind of noise elimination wind conduit, comprise the attenuating devices being arranged on insides of pipes, it is characterized in that: described attenuating devices comprises and is arranged on air channel inner surface, for slowing down the reduction layer of air-flow to the vibrations that the impact of air channel inwall produces, in described reduction layer, the gas channel be provided with for being flowed in front diminishes the part of air-flow flowed in front to be made it upwards to flow simultaneously and forms the choke apparatus of eddy current, and described choke apparatus is distributed in air channel inner surface with spirality.The utility model provides and uses choke apparatus to change air current flow thus the frequency weakening air-flow plays a kind of noise elimination wind conduit of sound deadening.
Description
Technical field
The utility model relates to silencing means field, specifically relates to a kind of noise elimination wind conduit.
Background technology
Blower fan can produce a large amount of noises when work air-supply, and noise is very large on the impact of the working environment of surrounding, is unfavorable for the long-time activity in production of workman, thus need to design a kind of can the air channel of noise reduction at producing region stringing to promote the comfort level of production environment.
And for example utility model patent, a kind of railway air conditioner noise elimination wind conduit disclosed in number CN 202792419 U, there is air channel shell, shell one end, air channel has air inlet, the described air channel shell other end has air outlet, the inner chamber of described air channel shell is provided with guiding device, and described guiding device is bending form along the sidepiece outer wall of air channel shell airflow direction, and described air channel shell airflow direction is for flow to air outlet by air inlet.Be filled with glass fibre cotton in the inner chamber of guiding device, between glass fibre cotton and the inwall of guiding device, be separated with fiber cloth.But this utility model still cannot solve the problem of noise reduction well.
Utility model content
The utility model provides and uses choke apparatus to change air current flow thus the frequency weakening air-flow plays a kind of noise elimination wind conduit of sound deadening.
In order to achieve the above object, the utility model adopts following technical scheme: comprise the attenuating devices being arranged on insides of pipes, it is characterized in that: described attenuating devices comprises and is arranged on air channel inner surface, for slowing down the reduction layer of air-flow to the vibrations that the impact of air channel inwall produces, in described reduction layer, the gas channel be provided with for being flowed in front diminishes the part of air-flow flowed in front to be made it upwards to flow simultaneously and forms the choke apparatus of eddy current, and described choke apparatus is distributed in air channel inner surface with spirality.
Preferred as one, described choke apparatus is arc line shaped towards the surface of wind outlet side.
Preferred as one, described choke apparatus towards side, air intake place is 90 ° and is bent to form and can makes air-flow guide portion upwards.
Preferred as one, the front end of described guide portion is provided with and upwards extends and sweptback ramp from the front end of described guide portion.
Preferred as one, it can be the eddy current portion that air-flow produces eddy current and turns that described guide portion and described ramp form intermediate void.
Preferred as one, described reduction layer comprises the acoustical cotton of multiple sound absorbing power being used for increasing described reduction layer, is provided with glass layer between described acoustical cotton.
Preferred as one, the thickness of described glass layer is 1cm ~ 2cm.
Preferred as one, the thickness of described acoustical cotton is 1.5cm ~ 2cm.
Preferred as one, described acoustical cotton is provided with two-layer altogether, and two-layer described acoustical cotton is separately positioned on inside and outside two surfaces of described reduction layer.
Preferred as one, described choke apparatus is pvc structure.
To sum up, the utility model has the following advantages:
The utility model gathers around good muffling effect, the advantage of good damping effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Detailed description of the invention
Below in conjunction with accompanying drawing, with embodiment, the utility model is described in further detail.
As shown in Figure 1, the present embodiment comprises the attenuating devices B1 being arranged on insides of pipes, it is characterized in that: attenuating devices B1 comprises and is arranged on air channel inner surface, for slowing down the reduction layer B2 of air-flow to the vibrations that the impact of air channel inwall produces, gas channel reduction layer B2 is provided with for being flowed in front diminishes a part for the air-flow of front flowing to be made it upwards to flow simultaneously and forms the choke apparatus B3 of eddy current, and choke apparatus B3 is distributed in air channel inner surface with spirality.
As shown in Figure 1, the present embodiment choke apparatus B3 is arc line shaped towards the surface of wind outlet side.Choke apparatus B3 towards side, air intake place is 90 ° and is bent to form and can makes air-flow guide portion B4 upwards.The front end that the front end of guide portion B4 is provided with bootstrap portion B4 upwards extends and sweptback ramp B5.It can be the eddy current portion B6 that air-flow produces eddy current and turns that guide portion B4 and ramp B5 forms intermediate void.
As shown in Figure 1, the present embodiment reduction layer B2 comprises the acoustical cotton B7 of multiple sound absorbing power being used for increasing reduction layer B2, is provided with glass layer B8 between acoustical cotton B7.The thickness of glass layer B8 is 1.8cm.The thickness of acoustical cotton B7 is 2cm.Acoustical cotton B7 is provided with two-layer altogether, and two-layer acoustical cotton B7 is separately positioned on inside and outside two surfaces of reduction layer B2.Choke apparatus B3 is pvc structure.
More than illustrate it is only to explanation of the present utility model, those of ordinary skill in the art's can completely is made to implement this programme, but be not to restriction of the present utility model, those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this description, and these are all not creative amendments.As long as but be all subject to the protection of Patent Law in right of the present utility model.
Claims (10)
1. a noise elimination wind conduit, comprise the attenuating devices (B1) being arranged on insides of pipes, it is characterized in that: described attenuating devices (B1) comprises and is arranged on air channel inner surface, for slowing down the reduction layer (B2) of air-flow to the vibrations that the impact of air channel inwall produces, in described reduction layer (B2), the gas channel be provided with for being flowed in front diminishes the part of air-flow flowed in front to be made it upwards to flow simultaneously and forms the choke apparatus (B3) of eddy current, and described choke apparatus (B3) is distributed in air channel inner surface with spirality.
2. a kind of noise elimination wind conduit according to claim 1, is characterized in that: described choke apparatus (B3) is arc line shaped towards the surface of wind outlet side.
3. a kind of noise elimination wind conduit according to claim 2, is characterized in that: described choke apparatus (B3) towards side, air intake place is 90 ° and is bent to form and can makes air-flow guide portion upwards (B4).
4. a kind of noise elimination wind conduit according to claim 3, is characterized in that: the front end of described guide portion (B4) is provided with and upwards extends and sweptback ramp (B5) from the front end of described guide portion (B4).
5. a kind of noise elimination wind conduit according to claim 4, is characterized in that: it can be the eddy current portion (B6) that air-flow produces eddy current and turns that described guide portion (B4) and described ramp (B5) form intermediate void.
6. a kind of noise elimination wind conduit according to claim 1, it is characterized in that: described reduction layer (B2) comprises the acoustical cotton (B7) of multiple sound absorbing power being used for increasing described reduction layer (B2), is provided with glass layer (B8) between described acoustical cotton (B7).
7. a kind of noise elimination wind conduit according to claim 6, is characterized in that: the thickness of described glass layer (B8) is 1cm ~ 2cm.
8. a kind of noise elimination wind conduit according to claim 6, is characterized in that: the thickness of described acoustical cotton (B7) is 1.5cm ~ 2cm.
9. a kind of noise elimination wind conduit according to claim 6, is characterized in that: described acoustical cotton (B7) is provided with two-layer altogether, and two-layer described acoustical cotton (B7) is separately positioned on inside and outside two surfaces of described reduction layer (B2).
10. a kind of noise elimination wind conduit according to claim 1, is characterized in that: described choke apparatus (B3) is pvc structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420650955.7U CN204100512U (en) | 2014-11-04 | 2014-11-04 | A kind of noise elimination wind conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420650955.7U CN204100512U (en) | 2014-11-04 | 2014-11-04 | A kind of noise elimination wind conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204100512U true CN204100512U (en) | 2015-01-14 |
Family
ID=52268932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420650955.7U Expired - Fee Related CN204100512U (en) | 2014-11-04 | 2014-11-04 | A kind of noise elimination wind conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204100512U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296340A (en) * | 2014-11-04 | 2015-01-21 | 沈阿宝 | Silencing duct |
| CN105465993A (en) * | 2015-12-16 | 2016-04-06 | 珠海格力电器股份有限公司 | Dissipative silencer |
-
2014
- 2014-11-04 CN CN201420650955.7U patent/CN204100512U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296340A (en) * | 2014-11-04 | 2015-01-21 | 沈阿宝 | Silencing duct |
| CN105465993A (en) * | 2015-12-16 | 2016-04-06 | 珠海格力电器股份有限公司 | Dissipative silencer |
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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: 20150114 Termination date: 20151104 |
|
| EXPY | Termination of patent right or utility model |