CN204346203U - Noise preventing device - Google Patents
Noise preventing device Download PDFInfo
- Publication number
- CN204346203U CN204346203U CN201420201090.6U CN201420201090U CN204346203U CN 204346203 U CN204346203 U CN 204346203U CN 201420201090 U CN201420201090 U CN 201420201090U CN 204346203 U CN204346203 U CN 204346203U
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- CN
- China
- Prior art keywords
- sound
- insulating barrier
- absorbing
- cooling tower
- sound absorbing
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- 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 relates to a kind of noise preventing device, comprise: the southwestern side of cooling tower, west side, north side and east side all arrange sound absorbing-insulating barrier, the height of sound absorbing-insulating barrier is all higher than the height of cooling tower, wherein, install soundproof door at sound absorbing-insulating barrier through road place, sound barrier is at this multiple perforated metal panel that distributes towards cooling tower, the main material of sound absorbing-insulating barrier is divided into sound-absorbing material and sound insulating material, and sound barrier sound-absorbing material adopts super glass wool.The utility model device effectively can suppress noise.
Description
Technical field
The utility model relates to a kind of mechanical device, particularly relates to a kind of noise preventing device.
Background technology
Natural Gas Power Plant generally adopts counter flow type natural draft cooling tower, and the noise of cooling stack causes primarily of Showering water sound, and its noise is spread to surrounding by cooling tower air inlet, thus pollutes surrounding environment.At present, commonly both at home and abroad to comprise for controlling cooling stack noise reduction measure: the modes such as noise elimination flow deflector and drop energy-eliminating device.
Noise elimination flow deflector also claims silencer method, be in cooling tower air inlet, fenced up by air inlet with noise elimination flow deflector, reaches noise reduction.By changing the noise elimination flow deflector of different performance, obtain different noise reductions.Cooling stack adopts noise elimination flow deflector method noise reduction, and its advantage is that noise reduction is large; The comparatively large shared place of noise reduction scope is less.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of noise preventing device preventing cooling tower noise, make it have more value in industry.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of noise preventing device preventing cooling tower noise.
Noise preventing device of the present utility model, comprise: the southwestern side of cooling tower, west side, north side and east side all arrange sound absorbing-insulating barrier, the height of sound absorbing-insulating barrier is all higher than the height of cooling tower, wherein, install soundproof door at sound absorbing-insulating barrier through road place, sound barrier is at this multiple perforated metal panel that distributes towards cooling tower, the main material of sound absorbing-insulating barrier is divided into sound-absorbing material and sound insulating material, and sound barrier sound-absorbing material adopts super glass wool.
Further, metal piercing panel aperture 3 ~ 5mm, punching rate >=20%.
Further, the oise insulation factor of soundproof door is greater than 35 decibels, and soundproof door is steel and fire-type.
By such scheme, the utility model at least has the following advantages:
Can the noise of effective cooling tower by anti-sound arrester of the present utility model.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of description, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model noise preventing device.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
Shown in Figure 1, a kind of noise preventing device, comprising:
The southwestern side of cooling tower, west side, in the certain limit in north side and east side, (such as: 1 meter of in factory circle) place all arranges sound absorbing-insulating barrier 1, and sound absorbing-insulating barrier 1 is all higher than cooling tower 3, wherein, through road place, soundproof door is installed at sound absorbing-insulating barrier 1, in accompanying drawing 1, has 2 places.Sound absorbing-insulating barrier 1 is at multiple perforated metal panel that distributes towards this side of cooling tower 3, and wherein, metal piercing panel aperture is 3 ~ 5mm, punching rate >=20%.In addition, the main material of sound absorbing-insulating barrier 1 is divided into sound-absorbing material and sound insulating material.Sound barrier sound-absorbing material adopts super glass wool, and the acoustical laboratory through authorized by state is identified, have detailed acoustic absorptivity and spectral characteristic, data is complete.Super glass wool, as sound-absorbing material, absorbs acoustic energy for barrier surface to sound source side, weakens barrier transmission sound and reflected sound.Super glass wool sound sucting band wider range, sound absorption efficiency is high.Super glass wool, its unit weight is 24kg/m3 ~ 48kg/m, and moisture content should be not more than 1%, and quality hydroscopicity should be not more than 5%, and hydrophobic rate should be not less than 98%.And answer flow resistance suitable, porous nickel, has higher sound absorbing capabilities and chemical stability.Centrifugally glass-wool allow unit weight error should be no more than ± 5%, impure amount is not more than 3%, acoustic absorptivity NRC >=0.90, and fibre diameter is less than 6 microns, not slag inclusion ball, moistureproof, do not absorb water.
Soundproof door quantity is 2 door frames, and design specification size is respectively 4000mm × 4000mm (wide × high) and 5000mm × 4000mm (wide × high), and vertical hinged door split by two fans.Soundproof door is provided with current wicket, wicket specification is 900mm × 2000mm.Soundproof door design oise insulation factor Rw >=35dB, steel, fire-type, have the antiseptic property that same sound barrier perforated plate and backboard require equally.
The above is only preferred embodiment of the present utility model; be not limited to the utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (3)
1. a noise preventing device, it is characterized in that, comprise: the southwestern side of cooling tower, west side, north side and east side all arrange sound absorbing-insulating barrier, the height of sound absorbing-insulating barrier all higher than the height of cooling tower, wherein, through road place, soundproof door is installed at sound absorbing-insulating barrier, sound absorbing-insulating barrier towards cooling tower this while multiple perforated metal panel that distributes, the material of sound absorbing-insulating barrier is divided into sound-absorbing material and sound insulating material, sound absorbing-insulating barrier sound-absorbing material adopt super glass wool.
2. noise preventing device according to claim 1, is characterized in that, described metal piercing panel aperture 3 ~ 5mm, punching rate >=20%.
3. noise preventing device according to claim 1, is characterized in that, the oise insulation factor of described soundproof door is greater than 35 decibels, and described soundproof door is steel and fire-type soundproof door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201090.6U CN204346203U (en) | 2014-04-23 | 2014-04-23 | Noise preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201090.6U CN204346203U (en) | 2014-04-23 | 2014-04-23 | Noise preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204346203U true CN204346203U (en) | 2015-05-20 |
Family
ID=53229466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420201090.6U Expired - Fee Related CN204346203U (en) | 2014-04-23 | 2014-04-23 | Noise preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204346203U (en) |
-
2014
- 2014-04-23 CN CN201420201090.6U patent/CN204346203U/en not_active Expired - Fee Related
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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: 20150520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |