CN201981810U - Wall surface sound-absorption structure of test room of high-speed centrifugal fan - Google Patents
Wall surface sound-absorption structure of test room of high-speed centrifugal fan Download PDFInfo
- Publication number
- CN201981810U CN201981810U CN2010206687927U CN201020668792U CN201981810U CN 201981810 U CN201981810 U CN 201981810U CN 2010206687927 U CN2010206687927 U CN 2010206687927U CN 201020668792 U CN201020668792 U CN 201020668792U CN 201981810 U CN201981810 U CN 201981810U
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- China
- Prior art keywords
- fixed
- square tube
- wood
- centrifugal fan
- speed centrifugal
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Abstract
The utility model relates to a wall surface sound-absorption structure of a test room of a high-speed centrifugal fan, which comprises a wall body, and is characterized by also comprising a wood plate, a square tube frame, an iron wire mesh, a wood frame, ultra-fine glass wool, glass fiber cloth and a zinc plating perforated plate, wherein the wood plate is fixed on the wall body, the square tube frame is fixed on the wood plate, the iron wire mesh is fixed on the square tube frame, and an air chamber layer is formed in the middle; and the wood frame is fixed on the square tube frame, the glass fiber cloth and the zinc plating perforated plate are sequentially fixed on the wood frame to form a space, and the space is filled with the ultra-fine glass wool. The wall surface sound-absorption structure is simple, compact and rational, occupies a mall space, has a low manufacturing cost, adopts the square tube frame internally and adopts the zinc plating perforated plate as a protective surface for packaging, is corrosion-resisting, and has high intensity and long service life.
Description
Technical field
The utility model relates to the noise reduction sound absorption construction in a kind of high-speed centrifugal fan test room, and specifically it is that sound insulation is eliminated the noise when being used for the high-speed centrifugal fan test, belongs to environmental technology field.
Background technology
In prior art, the high-speed centrifugal fan operation time can produce the above noise of 90db (a) usually, all should carry out in the special fan room during high-speed centrifugal fan test, and effect is the noise that produces when reducing fan operation, protects and improves environmental quality.Present fan test room metope acoustically effective is poor, the manufacturing cost height.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, spectrum signature according to the blower fan group adopts perforated plate resonance absorption and air layer absorbing structure, thereby a kind of high-speed centrifugal fan test room metope sound absorption construction is provided, and it is low cost of manufacture not only, and sound insulation, noise elimination effect are obvious.
The technical scheme that provides according to the utility model, high-speed centrifugal fan test room metope sound absorption construction comprises body of wall, feature is: also comprise plank, square tube framework, wire gauze, wooden frame, fine glass wool, glass fabric, zinc-plated perforated plate, described plank is fixed on the body of wall, the square tube frame fixation is on plank, wire gauze is fixed on the square tube framework, air chamber layer of middle formation; Wooden frame is fixed on the square tube framework, and glass fabric, zinc-plated perforated plate are fixed on the wooden frame successively, forms a space, fills with fine glass wool in the space.
Compared with the prior art the utility model has the following advantages:
The utility model is simple, compact and reasonable for structure; Used space is little, low cost of manufacture; Inner with the square tube framework, pack the zinc-plated perforated plate of mask, corrosion-resistant, intensity is high, long service life.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
As shown in Figure 1: the utility model comprises plank 1, square tube framework 2, wire gauze 3, wooden frame 4, fine glass wool 5, glass fabric 6, zinc-plated perforated plate 7, body of wall 8 etc.
The utility model adopts plank 1 to be fixed on the body of wall, and square tube framework 2 is fixed on the plank 1, and wire gauze 3 is fixed on the square tube framework 2, air chamber layer 9 of middle formation; Wooden frame 4 is fixed on the square tube framework 2, and glass fabric 6, zinc-plated perforated plate 7 are fixed on the wooden frame 4 successively, forms a space, fills with fine glass wool 5 in the space.
Operating principle of the present utility model and process are as follows:
As shown in Figure 1: can produce bigger noise during the high-speed centrifugal fan test, plank 1 is fixed on the metope, improve the acoustical reduction coefficient of metope, plank 1 forms the air layer sound absorption construction with wire gauze 3, it can be under the condition that does not increase material thickness, improve the sound absorbing capabilities of low-frequency noise, thereby save the use of sound absorption material, reduce the quality and the cost of unit area.The sound absorbent perforated structure that wire gauze 3, wooden frame 4, glass fabric 6, zinc-plated perforated plate 7 form, it has increased the sound absorbing capabilities of medium and low frequency noise, fill fine glass wool 5 in the cavity, improved sound absorption coefficient and wide band sound absorption, make whole acoustically effective better.
The utility model uses in high-speed centrifugal fan test Ventilator Room, owing to adopted air layer sound absorption construction, perforation board resonance sound absorption structure etc., sound-absorbing effect is obvious, the outer noise of Ventilator Room can reach environmental protection standard fully, and simple in structure, cost is low, long service life.
Claims (2)
1. a high-speed centrifugal fan is tested room metope sound absorption construction, comprise body of wall (8), it is characterized in that: also comprise plank (1), square tube framework (2), wire gauze (3), wooden frame (4), glass fabric (6), zinc-plated perforated plate (7), described plank (1) is fixed on the body of wall (8), square tube framework (2) is fixed on the plank (1), wire gauze (3) is fixed on the square tube framework (2), the middle air chamber layer (9) that forms; Wooden frame (4) is fixed on the square tube framework (2), and glass fabric (6), zinc-plated perforated plate (7) are fixed on the wooden frame (4) successively, forms a space.
2. high-speed centrifugal fan test as claimed in claim 1 room metope sound absorption construction is characterized in that:
Fill with fine glass wool (5) in the described space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206687927U CN201981810U (en) | 2010-12-20 | 2010-12-20 | Wall surface sound-absorption structure of test room of high-speed centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206687927U CN201981810U (en) | 2010-12-20 | 2010-12-20 | Wall surface sound-absorption structure of test room of high-speed centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201981810U true CN201981810U (en) | 2011-09-21 |
Family
ID=44609273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206687927U Expired - Lifetime CN201981810U (en) | 2010-12-20 | 2010-12-20 | Wall surface sound-absorption structure of test room of high-speed centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201981810U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011500A (en) * | 2010-12-20 | 2011-04-13 | 无锡杰尔压缩机有限公司 | Wall surface sound absorption structure of high-speed centrifugal fan testing room |
| CN105735498A (en) * | 2015-12-31 | 2016-07-06 | 武汉铁盾民防工程有限公司 | Fan test noise reduction device and preparation method thereof |
-
2010
- 2010-12-20 CN CN2010206687927U patent/CN201981810U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011500A (en) * | 2010-12-20 | 2011-04-13 | 无锡杰尔压缩机有限公司 | Wall surface sound absorption structure of high-speed centrifugal fan testing room |
| CN105735498A (en) * | 2015-12-31 | 2016-07-06 | 武汉铁盾民防工程有限公司 | Fan test noise reduction device and preparation method thereof |
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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 | ||
| CP03 | Change of name, title or address |
Address after: 214106 No. 38, Qian Lian Road, Xishan Economic Development Zone, Xishan District, Jiangsu, Wuxi Patentee after: JIANGSU GL-TURBO CORPORATION Address before: 214101 No. three, No. 99, Furong Road, Xishan Economic Development Zone, Xishan District, Jiangsu, Wuxi Patentee before: Wuxi Jieer Compressor Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |