CN2327739Y - Acoustic silencer - Google Patents
Acoustic silencer Download PDFInfo
- Publication number
- CN2327739Y CN2327739Y CN 98228254 CN98228254U CN2327739Y CN 2327739 Y CN2327739 Y CN 2327739Y CN 98228254 CN98228254 CN 98228254 CN 98228254 U CN98228254 U CN 98228254U CN 2327739 Y CN2327739 Y CN 2327739Y
- Authority
- CN
- China
- Prior art keywords
- acoustic silencer
- quiet
- sound absorber
- cooling tower
- diffusing stream
- 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
Links
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model relates to an acoustic silencer, which is mainly used for a cooling tower of glass fiber reinforced plastics. The shape of the acoustic silencer is flared; a flared wall of the acoustic silencer is composed of a glass fiber reinforced plastic housing and an internal wall of a microporous silencing plate, and an air damping cavity is arranged between the housing and the internal wall. The acoustic silencer can not only ensure cooling effect of the cooling tower, but also can efficiently reduce noise. Furthermore, the acoustic silencer is changed from a super-low noise type to a silencing type.
Description
The utility model relates to a kind of quiet diffusing stream sound absorber that is specially adapted to glass fibre reinforced plastics cooling tower.
The noise of glass fibre reinforced plastics cooling tower is mainly from the mechanical noise and the aerodynamic noise of motor, blower fan, and trickle sound.Its air outlet is hot and humid air-flow, also is the concentrated place of various noises, and the mixed noise at this place is effectively handled and controlled and must not influence that air-flow is unimpeded just must to adopt special sound absorber to handle.Traditional way is to install pagoda shape shutter additional at air outlet, but its noise elimination weak effect, and other sound absorber will increase gas-flow resistance and influence cooling effect.
The purpose of this utility model is that design a kind ofly neither can increase gas-flow resistance, the quiet preferably again diffusing stream sound absorber of noise elimination effect.
The utility model is achieved in that
A kind of quiet diffusing stream sound absorber, the shape that it is characterized in that this quiet diffusing stream sound absorber is tubaeform.
Further scheme is that the loudspeaker wall is made up of shell and micro silencer plate inwall, and leaves the air damping chamber between shell and the inwall.
Further to be this quiet diffusing stream sound absorber by at least three taperings all identical with structure only is that the loudspeaker that vary in size are nested and constitute for scheme.
The utility model has the advantages that, horn shape can stop airflow reflux effectively, the micro silencer plate can lower mixed noise effectively and guarantee that air-flow is unimpeded, water droplet in the air-flow refluxes at action of gravity lower edge loudspeaker wall and causes in the cooling tower simultaneously, both reduce the elegant loss of water, helped reducing water temperature again, so both guaranteed the cooling effect of cooling tower, effectively reduce noise again, and then entered mute type by the ultra-low noise type.
Fig. 1 is a vertical view of the present utility model.
Fig. 2 is the A-A portion view of Fig. 1.
Fig. 3 is the enlarged drawing of loudspeaker wall A.
Below in conjunction with accompanying drawing the utility model is described further.
As Fig. 1, Fig. 2 and Fig. 3, a kind of quiet diffusing stream sound absorber that is loaded on the glass fibre reinforced plastics cooling tower air outlet is all identical with structure by three taperings only to be that the different loudspeaker of size are nested and constitute, airflow direction is to major part along the loudspeaker microcephaly, its loudspeaker wall 1 is made up of glass fibre reinforced plastics casing 2 and micro silencer plate 3, and is formed with air damping chamber 4 between shell 2 and the inwall 3.
Claims (3)
1, a kind of quiet diffusing stream sound absorber, the shape that it is characterized in that this quiet diffusing stream sound absorber is tubaeform.
2, quiet diffusing stream sound absorber according to claim 1 is characterized in that loudspeaker wall (1) is made up of shell (2) and micro silencer plate inwall (3), and is formed with air damping chamber (4) between shell (2) and the inwall (3).
3, quiet diffusing stream sound absorber according to claim 1 and 2, it is characterized in that this quiet diffusing stream sound absorber all identical by at least three taperings with structure only be that the loudspeaker that vary in size are nested and constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228254 CN2327739Y (en) | 1998-02-08 | 1998-02-08 | Acoustic silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228254 CN2327739Y (en) | 1998-02-08 | 1998-02-08 | Acoustic silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2327739Y true CN2327739Y (en) | 1999-07-07 |
Family
ID=33978412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98228254 Expired - Fee Related CN2327739Y (en) | 1998-02-08 | 1998-02-08 | Acoustic silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2327739Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318709C (en) * | 2000-12-21 | 2007-05-30 | 德雷瑟-兰德公司 | Double layer acoustic liner and fluid pressurizing device and method utilizing same |
| CN1318710C (en) * | 2000-12-21 | 2007-05-30 | 德雷瑟-兰德公司 | Double layer acoustic liner and fluid pressurizing device and method utilizing same |
| CN111164357A (en) * | 2017-10-11 | 2020-05-15 | 开利公司 | Silencer with metal net ring |
-
1998
- 1998-02-08 CN CN 98228254 patent/CN2327739Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318709C (en) * | 2000-12-21 | 2007-05-30 | 德雷瑟-兰德公司 | Double layer acoustic liner and fluid pressurizing device and method utilizing same |
| CN1318710C (en) * | 2000-12-21 | 2007-05-30 | 德雷瑟-兰德公司 | Double layer acoustic liner and fluid pressurizing device and method utilizing same |
| CN111164357A (en) * | 2017-10-11 | 2020-05-15 | 开利公司 | Silencer with metal net ring |
| CN111164357B (en) * | 2017-10-11 | 2022-03-25 | 开利公司 | Silencer with metal net ring |
| US11808490B2 (en) | 2017-10-11 | 2023-11-07 | Carrier Corporation | Muffler with metallic meshed rings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |