CN204175382U - Power generating equipment impedance composite muffler - Google Patents
Power generating equipment impedance composite muffler Download PDFInfo
- Publication number
- CN204175382U CN204175382U CN201420584889.8U CN201420584889U CN204175382U CN 204175382 U CN204175382 U CN 204175382U CN 201420584889 U CN201420584889 U CN 201420584889U CN 204175382 U CN204175382 U CN 204175382U
- Authority
- CN
- China
- Prior art keywords
- baffle plate
- diffusing tube
- plate washer
- plate
- intervalve
- 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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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of power generating equipment impedance composite muffler, it is characterized in that, front cover and rear end cover are by the closed at both ends of housing, first baffle plate and the second plate washer are by the internal layout of housing, air inlet diffusing tube and diffusing tube of giving vent to anger are inserted on the first baffle plate and the second plate washer respectively from the upper and lower of front cover, intervalve is inserted with in the side of the first baffle plate and the second plate washer, the one end open of described air inlet diffusing tube, give vent to anger diffusing tube and intervalve, the other end is closed, and sound-absorbing material fills up the space between the first baffle plate and the second plate washer.By above setting, the utility model takes full advantage of the vibration friction noise elimination effect of sound-absorbing material and perforated pipe, improves the soundproof effect of silencing apparatus.
Description
Technical field
The utility model relates to a kind of exhaust silencer, is a kind of power generating equipment impedance composite muffler specifically.
Background technique
At present, existing power generating equipment exhaust silencer key resistance exhaust silencer structure, its noise-cancelling theory is the abrupt change of cross-section utilizing pipeline, make sound wave forward direction make ripple equal with wave-amplitude after expansion chamber back reflection 180 degree, phase place is contrary, mutually interferes, reach the most desirable soundproof effect, but the contradiction that this silencing apparatus exists at present is in use, because the deadening frequency band of reactive muffler is based on Low Medium Frequency, poor to the soundproof effect of high frequency.At some, harsh place is required to ambient noise, can not satisfy regulatory requirement.
Summary of the invention
The purpose of this utility model is to provide a sound-absorbing porous material that utilizes in conjunction with the power generating equipment impedance composite muffler of resistance structure.
To achieve these goals, front cover of the present utility model and rear end cover are by the closed at both ends of housing, first baffle plate and the second plate washer are by the internal layout of housing, air inlet diffusing tube and diffusing tube of giving vent to anger are inserted on the first baffle plate and the second plate washer respectively from the upper and lower of front cover, intervalve is inserted with in the side of the first baffle plate and the second plate washer, the one end open of described air inlet diffusing tube, give vent to anger diffusing tube and intervalve, the other end is closed, and sound-absorbing material fills up the space between the first baffle plate and the second plate washer.
By above setting, the utility model takes full advantage of the vibration friction noise elimination effect of sound-absorbing material and perforated pipe, improves the soundproof effect of silencing apparatus.
Accompanying drawing explanation
Now by reference to the accompanying drawings the utility model is described further.
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A sectional view of Fig. 1.
In figure: 1, front cover, 2, rear end cover, the 3, first baffle plate, the 4, second plate washer, 5, air inlet diffusing tube, 6, diffusing tube of giving vent to anger, 7, intervalve, 8, sound-absorbing material 9, housing.
Embodiment
As shown in Figure 1, 2, front cover 1 of the present utility model and rear end cover 2 are by the closed at both ends of housing 9, first baffle plate 3 and the second plate washer 4 are by the internal layout of housing 1, air inlet diffusing tube 5 and diffusing tube 6 of giving vent to anger are inserted on the first baffle plate 3 and the second plate washer 4 respectively from the upper and lower of front cover 1, intervalve 7 is inserted with in the side of the first baffle plate 3 and the second plate washer 4, the one end open of described air inlet diffusing tube 5, give vent to anger diffusing tube 6 and intervalve 7, the other end is closed, and sound-absorbing material 8 fills up the space between the first baffle plate 3 and the second plate washer 4.
By above setting, the noise of discharging from power generating equipment enters between front cover 1 and the first baffle plate 3 through air inlet diffusing tube 5 of the present utility model, realize one-level expansion, eliminate partial noise, simultaneously due to the mesh effect on air inlet diffusing tube 5, resonant silencing, noise enters between the second plate washer 4 and rear end cover 2 from the mesh intervalve 7 outer wall, realize secondary expansion, high-frequency noise is eliminated in the acting in conjunction of sound-absorbing material 8 simultaneously, and noise is discharged through diffusing tube 6 of giving vent to anger.
Claims (1)
1. power generating equipment impedance composite muffler, it is characterized in that: front cover and rear end cover are by the closed at both ends of housing, first baffle plate and the second plate washer are by the internal layout of housing, air inlet diffusing tube and diffusing tube of giving vent to anger are inserted on the first baffle plate and the second plate washer respectively from the upper and lower of front cover, intervalve is inserted with in the side of the first baffle plate and the second plate washer, the one end open of described air inlet diffusing tube, give vent to anger diffusing tube and intervalve, the other end is closed, and sound-absorbing material fills up the space between the first baffle plate and the second plate washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420584889.8U CN204175382U (en) | 2014-10-11 | 2014-10-11 | Power generating equipment impedance composite muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420584889.8U CN204175382U (en) | 2014-10-11 | 2014-10-11 | Power generating equipment impedance composite muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175382U true CN204175382U (en) | 2015-02-25 |
Family
ID=52564199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420584889.8U Expired - Fee Related CN204175382U (en) | 2014-10-11 | 2014-10-11 | Power generating equipment impedance composite muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175382U (en) |
-
2014
- 2014-10-11 CN CN201420584889.8U patent/CN204175382U/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: 20150225 Termination date: 20171011 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |