CN102011500A - Wall surface sound absorption structure of high-speed centrifugal fan testing room - Google Patents
Wall surface sound absorption structure of high-speed centrifugal fan testing room Download PDFInfo
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- CN102011500A CN102011500A CN 201010595905 CN201010595905A CN102011500A CN 102011500 A CN102011500 A CN 102011500A CN 201010595905 CN201010595905 CN 201010595905 CN 201010595905 A CN201010595905 A CN 201010595905A CN 102011500 A CN102011500 A CN 102011500A
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Abstract
The invention relates to a wall surface sound absorption structure of a high-speed centrifugal fan testing room, which is characterized by further comprising a wood plate, a square pipe framework, an iron wire mesh, a wood framework, fine glass wool, glass fiber cloth and a galvanized perforated plate, wherein the wood plate is fixed on a wall body, the square pipe framework is fixed on the wood plate, the iron wire mesh is fixed on the square pipe framework, and an air cavity layer is formed at the middle; and the wood framework is fixed on the square pipe framework, the glass fiber cloth and the galvanized perforated plate are sequentially fixed on the wood framework to form a space, and the space is filled with the fine glass wool. The wall surface sound absorption structure is simple, compact and reasonable, occupies small space and is low in manufacturing cost; furthermore, the square pipe framework is used in the wall surface sound absorption structure, and the packaging protective surface uses the galvanized perforated plate, thereby being corrosion-resistant, high in strength and long in service life.
Description
Technical field
The present invention relates to the noise reduction sound absorption construction in a kind of high-speed centrifugal fan test room, 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 objective of the invention 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.
According to technical scheme provided by the invention, 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 present invention has the following advantages:
The present invention 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 a structural representation of the present invention.
The specific embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
As shown in Figure 1: the present invention includes 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 present invention 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 invention 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 present invention 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 |
|---|---|---|---|
| CN 201010595905 CN102011500A (en) | 2010-12-20 | 2010-12-20 | Wall surface sound absorption structure of high-speed centrifugal fan testing room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010595905 CN102011500A (en) | 2010-12-20 | 2010-12-20 | Wall surface sound absorption structure of high-speed centrifugal fan testing room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102011500A true CN102011500A (en) | 2011-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010595905 Pending CN102011500A (en) | 2010-12-20 | 2010-12-20 | Wall surface sound absorption structure of high-speed centrifugal fan testing room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102011500A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287404A (en) * | 2011-09-22 | 2011-12-21 | 无锡杰尔压缩机有限公司 | Sound absorption structure of soundproof shield |
| CN105926999A (en) * | 2016-03-14 | 2016-09-07 | 张玉国 | Mechanism for lifting silencer room using helicopter with weight limit of 2.5 tons and processing technology |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094620U (en) * | 1991-01-16 | 1992-01-29 | 徐火炬 | Wide frequency sheet type sound damper |
| CN2123564U (en) * | 1991-09-13 | 1992-12-02 | 王法源 | High-damped wide frequeney band sound absorption wall |
| DE4231487A1 (en) * | 1992-09-21 | 1994-03-24 | Nuedling Franz C Basaltwerk | Sound absorbing, constructional wall element - has cover layer, whose wall is fitted with sound absorbing layer, or plates on rear side and has air gap between cover and support layers |
| CN2194936Y (en) * | 1994-04-11 | 1995-04-19 | 南亚塑胶工业股份有限公司 | Improved moving sound-insulation wall |
| CN2210215Y (en) * | 1994-12-05 | 1995-10-18 | 吕贵美 | Multi-layer spaced sound-absorbing element |
| CN2234979Y (en) * | 1995-11-30 | 1996-09-11 | 济南黄河公路大桥管理处 | Special wall material for road fees-collecting station |
| CN2625624Y (en) * | 2003-07-07 | 2004-07-14 | 长沙贝尔环保节能设备有限公司 | Square low noise axial fan |
| CN201981810U (en) * | 2010-12-20 | 2011-09-21 | 无锡杰尔压缩机有限公司 | Wall surface sound-absorption structure of test room of high-speed centrifugal fan |
-
2010
- 2010-12-20 CN CN 201010595905 patent/CN102011500A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094620U (en) * | 1991-01-16 | 1992-01-29 | 徐火炬 | Wide frequency sheet type sound damper |
| CN2123564U (en) * | 1991-09-13 | 1992-12-02 | 王法源 | High-damped wide frequeney band sound absorption wall |
| DE4231487A1 (en) * | 1992-09-21 | 1994-03-24 | Nuedling Franz C Basaltwerk | Sound absorbing, constructional wall element - has cover layer, whose wall is fitted with sound absorbing layer, or plates on rear side and has air gap between cover and support layers |
| CN2194936Y (en) * | 1994-04-11 | 1995-04-19 | 南亚塑胶工业股份有限公司 | Improved moving sound-insulation wall |
| CN2210215Y (en) * | 1994-12-05 | 1995-10-18 | 吕贵美 | Multi-layer spaced sound-absorbing element |
| CN2234979Y (en) * | 1995-11-30 | 1996-09-11 | 济南黄河公路大桥管理处 | Special wall material for road fees-collecting station |
| CN2625624Y (en) * | 2003-07-07 | 2004-07-14 | 长沙贝尔环保节能设备有限公司 | Square low noise axial fan |
| CN201981810U (en) * | 2010-12-20 | 2011-09-21 | 无锡杰尔压缩机有限公司 | Wall surface sound-absorption structure of test room of high-speed centrifugal fan |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287404A (en) * | 2011-09-22 | 2011-12-21 | 无锡杰尔压缩机有限公司 | Sound absorption structure of soundproof shield |
| CN105926999A (en) * | 2016-03-14 | 2016-09-07 | 张玉国 | Mechanism for lifting silencer room using helicopter with weight limit of 2.5 tons and processing technology |
| CN105926999B (en) * | 2016-03-14 | 2018-07-17 | 张玉国 | 2.5 tons of freight weight limit helicopter handling noise reduction computer room mechanisms of one kind and processing technology |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110413 |