CN201526979U - Chimney air-discharge silencer - Google Patents
Chimney air-discharge silencer Download PDFInfo
- Publication number
- CN201526979U CN201526979U CN200920074644XU CN200920074644U CN201526979U CN 201526979 U CN201526979 U CN 201526979U CN 200920074644X U CN200920074644X U CN 200920074644XU CN 200920074644 U CN200920074644 U CN 200920074644U CN 201526979 U CN201526979 U CN 201526979U
- Authority
- CN
- China
- Prior art keywords
- acoustic board
- housing
- fixed
- deflector
- keel
- 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
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Abstract
The utility model provides a chimney air-discharge silencer. A lower end of the housing is provided with a flange angle iron. The middle segment of the housing is fixedly provided with a strut seat. One end of each of the arranged keels is fixed to the inner wall of the housing, and the other end fixes a foam aluminum acoustic board with a square shape. A flow deflector is fixedly connected with the housing through the keels. The foam aluminum acoustic board is fixed on the surface of the flow deflector. The flow deflector divides the inner chamber of the housing into two rectangular diversion and silencing channels. A composite through-hole acoustic board is fixed to the inner end of a rainproof cover. As the foam aluminum acoustic board and the composite through hole acoustic board are adopted as the silencing material. The cost performance of silencing characteristic is good. The problem of high-frequency failure is settled. The sound absorption efficiency is increased. Additionally, The combination of foam aluminum acoustic board and the composite through hole acoustic board has excellent mechanical performance, excellent fire resistance, excellent resistance and high aging resistance. The manufactured silencer has the advantages of simple structure, small volume, convenient installation, greatly reduced aerodynamic dynamic noise produced in chimney discharging, and high generalization value.
Description
Technical field
A kind of chimney air draft of the utility model silencer, what relate to is the noise elimination technique field of pipeline exhaust emptying, is applied to the noise elimination of chimney and open-air vertical exhaust emptying.
Background technology
Existing air draft silencer, its noise elimination is made sound-absorbing material with mineral wool, rock wool or microperforated panel respectively with medium, owing to mineral wool, rock wool are brittle substances, frangible, the mineral wool that fractures, performance are extremely unstable, and rock wool can not wear out at occurring in nature, are difficult to again handle; If mineral wool, rock wool fibers spread in the air, particularly when air draft, taken out of, easily environment is caused severe contamination, human body skin, respiratory tract are damaged very big, be unfavorable for healthy.The caking if make moist then eliminates the noise and lost efficacy, and service life is short.Then, adopt microperforated panel to make silencer,,, cause sound absorption efficiency low because its frequency is narrow though it does not pollute the environment, the acoustic wave filter structure complexity of making, cost is very high, thereby seldom uses in engineering, is difficult to apply.
The utility model content
The purpose of this utility model is to overcome above-mentioned defective, uses the foamed aluminium acoustic board and makes deadener, and it is effective, free from environmental pollution to design a kind of noise elimination, a kind of chimney air draft silencer that volume is little.Its technology is achieved in that and comprises flange, the flange angle steel, supporting seat, the foamed aluminium acoustic board, keel, housing, support, rain cover, the composite via acoustic board, deflector, bearing diagonal is in interior structure, it is characterized in that: the housing lower end is provided with the flange angle steel, the housing stage casing is fixed with strut socket, keel one end arranged evenly is fixed on inner walls, other end fixed foam aluminium acoustic board, deflector picks out keel by keel and fixedlys connected with housing, fixed foam aluminium acoustic board on the deflector face, deflector is separated the housing inner chamber and is become two rectangle guide flow noise elimination passages, rain cover the inner is fixed with the composite via acoustic board that is peviform, and the foamed aluminium acoustic board is arranged the layout that is square.The positive effect of implementing after this technology is: at first be fundamentally solved mineral wool, rock wool is caused severe contamination to air easily, exempted human body skin, respiratory tract are damaged, and the caking that makes moist is easily eliminated the noise and was lost efficacy the shortcoming that service life is short; It is narrow to have solved the microperforated panel frequency again, the defective that involves great expense, because as deadener, acoustic characteristics has solved the high frequency Problem of Failure than good with the foamed aluminium acoustic board, basic, normal, high frequency sound all has good sound absorption, improved sound absorption efficiency, and acoustic energy can have been changed into the effect that heat energy reaches noise elimination, in addition, not only have the favorable mechanical performance with the foamed aluminium acoustic board, have fire prevention, waterproof, anti-aging again.The silencer of making, simple in structure, volume is little, and is easy for installation, reduces the aerodynamic force noise that blower fan produces greatly, has great promotional value.
Description of drawings
Fig. 1 looks the sectional structure schematic diagram for the master of the utility model embodiment;
Fig. 2 is that the A-A of the utility model embodiment is to structural representation;
Wherein, 1-flange angle steel, 2-supporting seat, 3-foamed aluminium acoustic board, 4-keel, 5-housing, 6-support, 7-rain cover, 8-composite via acoustic board, 9-deflector, 10-bearing diagonal, 11-chimney, 12-guide flow noise elimination passage;
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
See accompanying drawing 1, housing (5) lower end is provided with flange angle steel (1), housing (5) stage casing is fixed with strut socket (2), keel (4) one ends arranged evenly are fixed on housing (5) inwall, the other end fixed foam aluminium acoustic board (3) that is square, deflector (9) picks out keel (4) by keel (4) fixedlys connected with housing (5), and housing (5) inner chamber is separated into the guide flow noise elimination passage (12) of two rectangles, fixed foam aluminium acoustic board (3) on deflector (9) face.Support (6) fixedly connected housing (5) and rain cover (7), rain cover (7) the inner is fixed with the composite via acoustic board (8) that is peviform.
See that accompanying drawing 1,2 complete machines are fixed on chimney (11) top.A kind of chimney air draft silencer is fixedlyed connected with housing (5) by flange angle steel (1), and housing (5) stage casing is fixed with strut socket (2), and hound (10) connects strut socket (2) and machine room is connected and fixed housing (5).A kind of chimney air draft silencer is fixedlyed connected with housing (5) by flange angle steel (1), and housing (5) stage casing is fixed with strut socket (2), and strut socket (2) connects bearing diagonal (10), and bearing diagonal (10) connects strut socket (2) and machine room stationary housing (5).Keel (4) one ends arranged evenly are fixed on housing (5) inwall, other end fixed foam aluminium acoustic board (3), deflector (9) picks out keel (4) by keel (4) and fixedlys connected with housing (5), fixed foam aluminium acoustic board (3) on the face of deflector (9) makes and forms the rectangle guide flow noise elimination passage (12) that two inwalls apply full foamed aluminium acoustic board (3) in the housing (5).Support (6) fixedly connected housing (5) and rain cover (7), rain cover (7) inboard is fixed with the composite via acoustic board (8) that is peviform.
When air exhauster starts, flue gas is discharged chimney, when flue gas conflict deflector (9), flue gas is directed and shunts, enter the guide flow noise elimination passage (12) of two square-sections, during through foamed aluminium acoustic board (3), noise is by being absorbed in altitude range by foamed aluminium acoustic board (3) to weak by force, after flue gas flow noise after weakening is gone out housing (5) and is arrived composite via acoustic board (8) in the rain cover (7) and be absorbed once more, the flue gas of turnover discharges from the space that rain cover (8) and silencer top exhaust outlet air quantity are complementary, the aerodynamic force noise reduces greatly, and noise reduces 26dB (A).
Claims (3)
1. chimney air draft silencer, comprise flange, the flange angle steel, supporting seat, the foamed aluminium acoustic board, keel, housing, support, rain cover, the composite via acoustic board, deflector, bearing diagonal is in interior structure, it is characterized in that: the housing lower end is provided with the flange angle steel, the housing stage casing is fixed with strut socket, keel one end arranged evenly is fixed on inner walls, other end fixed foam aluminium acoustic board, deflector picks out keel by keel and fixedlys connected with housing, fixed foam aluminium acoustic board on the deflector face, deflector are separated the housing inner chamber and are become two rectangle guide flow noise elimination passages.
2. a kind of chimney air draft silencer according to claim 1, it is characterized in that: rain cover the inner is fixed with the composite via acoustic board that is peviform.
3. a kind of chimney air draft silencer according to claim 1 is characterized in that: the foamed aluminium acoustic board is arranged the layout that is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920074644XU CN201526979U (en) | 2009-10-26 | 2009-10-26 | Chimney air-discharge silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920074644XU CN201526979U (en) | 2009-10-26 | 2009-10-26 | Chimney air-discharge silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201526979U true CN201526979U (en) | 2010-07-14 |
Family
ID=42518265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920074644XU Expired - Fee Related CN201526979U (en) | 2009-10-26 | 2009-10-26 | Chimney air-discharge silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201526979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091006A (en) * | 2014-05-15 | 2015-11-25 | 厦门嘉达声学技术有限公司 | Rain-proof noise eliminating funnel cap |
-
2009
- 2009-10-26 CN CN200920074644XU patent/CN201526979U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091006A (en) * | 2014-05-15 | 2015-11-25 | 厦门嘉达声学技术有限公司 | Rain-proof noise eliminating funnel cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20121026 |