CN202630349U - Outdoor ventilation silencer - Google Patents
Outdoor ventilation silencer Download PDFInfo
- Publication number
- CN202630349U CN202630349U CN 201220286276 CN201220286276U CN202630349U CN 202630349 U CN202630349 U CN 202630349U CN 201220286276 CN201220286276 CN 201220286276 CN 201220286276 U CN201220286276 U CN 201220286276U CN 202630349 U CN202630349 U CN 202630349U
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- CN
- China
- Prior art keywords
- damper element
- noise eliminating
- metal shell
- outdoor ventilation
- pieces
- 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 - Lifetime
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Abstract
The utility model discloses an outdoor ventilation silencer comprising a frame body and noise eliminating pieces. A plurality of the noise eliminating pieces are evenly arranged in the frame body. The cross section of the noise eliminating pieces is two ovals connected at the top. An inclined angle of the long central lines of the two ovals is 30 DEG C to 150 DEG C. The noise eliminating pieces are connected with the inner wall of the frame body through bottom edges at two sides. The noise eliminating pieces and the frame body are produced in module production mode, are convenient to machine, quick to assemble, capable of reutilizing components and assembling temporarily, and reducing manufacturing cost of the silencer. The noise eliminating pieces are double-R shaped noise eliminating pieces through professional acoustic design, and good in noise eliminating effect, and averagely reduce the noise to 10-15 decibel (dB) (A) (125-4000 hertz (Hz), 1/3 of octave), and is up to 20 dB (A). The outdoor ventilation silencer is provided with a metal shell body, can carry out antiseptic treatment on the surface of metal, and prolongs service life.
Description
Technical field
The utility model relates to a kind of ventilation silencer that is used for environment-friendly engineering, relates in particular to a kind of outdoor ventilation silencer with good ventilation, acoustic attenuation performance.
Background technology
When rapid economy development was brought the living standard that improves day by day to people, problem of environmental pollution was also serious day by day.Noise pollution causes that more and more people pay attention to widely, and silencer is the effective tool that reducing noise pollutes.
The ventilation silencer that is used for environment-friendly engineering at present adopts cylindric or laminated structure, or installs complicatedly, and it is not convenient to construct, or simple in structure but noise elimination weak effect, but and all has a low shortcoming of recycling rate of waterused.
Summary of the invention
The purpose of the utility model is a kind of simple in structure and have an outdoor ventilation silencer of good ventilation, acoustic attenuation performance with regard to being to provide in order to address the above problem.
The utility model is realized above-mentioned purpose through following technical scheme:
The utility model comprises framework and damper element; Said damper element is a plurality of; Evenly be installed in the said framework; Angle between two ellipses of the cross section of said damper element for connecting through the top, two said oval-shaped long center lines is 30 °-150 °, and said damper element is connected with the inwall of said framework through the base of both sides.Two ellipses of the cross section of damper element for connecting through the top make damper element form the two R type damper elements through professional acoustics design, have good performance of ventilating and acoustic attenuation performance.
Particularly, said damper element comprises metal shell and the sound-absorbing material that is filled in the said metal shell, is the top with the middle part link of said damper element, evenly is provided with a plurality of apertures on the metal shell below the said damper element.Metal shell above the damper element is positioned at an outdoor side, can be rainproof, and the metal shell below the damper element is positioned at an indoor side, makes the wind through the space between the adjacent damper element reduce noise, reaches the purpose of noise elimination.
As preferably, the surface area of said aperture account for the metal shell below the said damper element surface area 20%.
Further, the surface of said metal shell is disposed with zinc coat and layer of paint from inside to outside, can reach purpose anticorrosion, life-saving.
Said damper element is welded to connect through the base of both sides and the inwall of said framework.
The beneficial effect of the utility model is:
Damper element of the utility model and framework adopt modularization production, and be easy to process, quick for installation, and assembly can reuse, interim assembly unit, reduced the construction cost of silencer; Damper element adopts the two R type damper elements through professional acoustics design, and it is effective to eliminate the noise, and average noise reduction reaches 10～15dB (A) (125Hz～40000Hz, third-octave), is up to 20dB (A); The utility model uses metal shell, and can carry out preservative treatment, the long service life that has prolonged the utility model in the metal surface; The utility model is applicable to and is installed on the body of wall with the requirement of ventilation noise reduction.
Description of drawings
Fig. 1 is the front view of the utility model;
Fig. 2 is the A-A cutaway view among Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As depicted in figs. 1 and 2; The utility model comprises framework 1 and damper element 2, and damper element 2 is a plurality of, evenly is installed in the framework 1; Two ellipses of the cross section of damper element 2 for connecting through the top; Angle between two oval-shaped long center lines is 90 °, also can between 30 °-150 °, select other angle, and damper element 2 is welded to connect through the base of both sides and the inwall of framework 1.
As shown in Figure 2; Middle part link with damper element 2 is the top; Damper element 2 comprises top metal shell 3, following metal shell 4 and is filled in the sound-absorbing material (unmarked among the figure) in the metal shell; In the damper element 2, evenly be provided with a plurality of aperture (not shown)s on the following metal shell 4, the surface area of aperture account for the metal shell 4 below the said damper element surface area 20%; Top metal shell 3 is disposed with zinc coat and layer of paint (not shown) from inside to outside with the surface of following metal shell 4.
As shown in Figure 2, during installation, the metal shell 3 above the damper element is installed on an outdoor side, can be rainproof, and the metal shell 4 below the damper element is installed on an indoor side, makes the wind through the space between the adjacent damper element 2 reduce noise, reaches the purpose of noise elimination.
Claims (5)
1. outdoor ventilation silencer; It is characterized in that: comprise framework and damper element; Said damper element is a plurality of, evenly is installed in the said framework two ellipses of the cross section of said damper element for connecting through the top; Angle between two said oval-shaped long center lines is 30 °-150 °, and said damper element is connected with the inwall of said framework through the base of both sides.
2. outdoor ventilation silencer according to claim 1; It is characterized in that: said damper element comprises metal shell and the sound-absorbing material that is filled in the said metal shell; Middle part link with said damper element is the top, evenly is provided with a plurality of apertures on the metal shell below the said damper element.
3. outdoor ventilation silencer according to claim 1 is characterized in that: the surface area of said aperture account for the metal shell below the said damper element surface area 20%.
4. according to claim 2 or 3 described outdoor ventilation silencers, it is characterized in that: the surface of said metal shell is disposed with zinc coat and layer of paint from inside to outside.
5. outdoor ventilation silencer according to claim 1 is characterized in that: said damper element is welded to connect through the base of both sides and the inwall of said framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220286276 CN202630349U (en) | 2012-06-18 | 2012-06-18 | Outdoor ventilation silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220286276 CN202630349U (en) | 2012-06-18 | 2012-06-18 | Outdoor ventilation silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202630349U true CN202630349U (en) | 2012-12-26 |
Family
ID=47383544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220286276 Expired - Lifetime CN202630349U (en) | 2012-06-18 | 2012-06-18 | Outdoor ventilation silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202630349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927534A (en) * | 2020-08-10 | 2020-11-13 | 中建八局第二建设有限公司 | Construction method for connection of super-large heavy fan and silencer |
-
2012
- 2012-06-18 CN CN 201220286276 patent/CN202630349U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927534A (en) * | 2020-08-10 | 2020-11-13 | 中建八局第二建设有限公司 | Construction method for connection of super-large heavy fan and silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SICHUAN SANYUAN ENVIRONMENTAL GOVERNANCE CO., LTD. Free format text: FORMER NAME: SICHUAN SANYUAN ENVIRONMENTAL PROTECTION ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Wuhou District Frasers road Chengdu city Sichuan province 610000 No. 511 1 5 storey building No. 1 Patentee after: SICHUAN SANYUAN ENVIRONMENTAL GOVERNANCE CO., LTD. Address before: Wuhou District Frasers road Chengdu city Sichuan province 610000 No. 511 1 5 storey building No. 1 Patentee before: Sichuan Sanyuan Environmental Protection Engineering Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |