CN104265408A - Impedance compound muffler for power generating equipment - Google Patents
Impedance compound muffler for power generating equipment Download PDFInfo
- Publication number
- CN104265408A CN104265408A CN201410521254.8A CN201410521254A CN104265408A CN 104265408 A CN104265408 A CN 104265408A CN 201410521254 A CN201410521254 A CN 201410521254A CN 104265408 A CN104265408 A CN 104265408A
- Authority
- CN
- China
- Prior art keywords
- casing
- housing
- air inlet
- diffusing tube
- diffusion tube
- 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.)
- Pending
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Abstract
The invention discloses an impedance compound muffler for power generating equipment. The impedance compound muffler comprises a casing, partitions and end covers. The end covers are arranged at two ends of the casing, the partitions are arranged between the two end covers and the casing and divide the two end covers and the casing into three separated cavities, and sound absorption materials are filled in the cavity formed by the casing. An air inlet diffusion tube and an air outlet diffusion tube penetrate through one end of the casing and the two layers of partitions respectively, and the penetrating ends of the air inlet diffusion tube and the air outlet diffusion tube are located in the cavity formed by the end cover located on the other side of the casing. A plurality of air vents are formed on the side wall of the air inlet diffusion tube and on the side wall of the air outlet diffusion tube located in the cavity formed by the casing. The impedance compound muffler is provided with the three separated cavities, the plurality of air vents are formed on the side walls of the air inlet diffusion tube and the air outlet diffusion tube, and the sound absorption materials are filled in the cavity formed by the casing so that the sound absorption effect of the sound absorption materials and perforated pipes by aid of vibration and friction is sufficiently used and the sound absorption effect of the muffler is improved.
Description
Technical field
The present invention 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
Object of the present invention is the power generating equipment impedance composite muffler providing a kind of soundproof effect good.
For achieving the above object, technological scheme of the present invention is: power generating equipment impedance composite muffler, comprise housing, dividing plate, end cap, it is characterized in that: be respectively arranged with end cap at the two ends of described housing, two are provided with dividing plate between end cap and housing, two end caps and housing are divided into three cavitys separated, sound-absorbing material is full of in the cavity that described housing is formed, air inlet diffusing tube and diffusing tube of giving vent to anger run through one end of housing and two-layer dividing plate respectively, make air inlet diffusing tube and give vent to anger diffusing tube run through end be positioned at housing opposite side end cap formed cavity, the sidewall of described air inlet diffusing tube is provided with multiple air-vent, diffusing tube sidewall of giving vent to anger in the cavity that described housing is formed is provided with multiple air-vent.
Owing to adopting technique scheme, the present invention is provided with three cavitys separated, the sidewall of air inlet diffusing tube and diffusing tube of giving vent to anger is provided with multiple air-vent, and be full of sound absorbing material in cavity wherein, take full advantage of the vibration friction noise elimination effect of sound-absorbing material and perforated pipe, improve the soundproof effect of silencing apparatus.
Accompanying drawing explanation
Now the present invention will be further described by reference to the accompanying drawings.
Fig. 1 is structural representation of the present invention.
In figure: 1, end cap, 2, sound-absorbing material, 3, air inlet diffusing tube, 4, diffusing tube of giving vent to anger, 5, dividing plate, 6, housing.
Embodiment.
As shown in Figure 1, power generating equipment impedance composite muffler of the present invention, comprise housing 6, dividing plate 5, end cap 1, end cap 1 is respectively arranged with at the two ends of housing 6, dividing plate 5 is provided with between two end caps 1 and housing 6, two end caps 1 and housing 6 are divided into three cavitys separated, sound-absorbing material 2 is full of in the cavity that housing 6 is formed, air inlet diffusing tube 3 and diffusing tube 4 of giving vent to anger run through one end and the two-layer dividing plate 5 of housing 6 respectively, make air inlet diffusing tube 3 and the end that runs through of diffusing tube 4 of giving vent to anger is positioned at the cavity that housing 6 opposite side end cap 1 formed, the sidewall of air inlet diffusing tube 3 is provided with multiple air-vent, diffusing tube 4 sidewall of giving vent to anger in the cavity that housing 6 is formed is provided with multiple air-vent.
Working principle of the present invention: the noise entering silencing apparatus from power generating equipment outlet pipe enters the first cavity chamber through air inlet diffusing tube 3, realize one-level expansion, eliminate partial noise, simultaneously due to the air-vent on air inlet diffusing tube 3, eliminate part low-frequency noise, noise enters the cavity of housing 6 formation through air inlet diffusing tube 3 from the first cavity, passing through this cavity, in the air-vent cavity of air inlet diffusing tube 3, high-frequency noise is eliminated in the acting in conjunction of sound-absorbing material 2, when entering the 3rd chamber, realize secondary expansion, eliminate partial noise, and when the cavity that housing 6 is formed discharges silencing apparatus through diffusing tube 4 of giving vent to anger, because high-frequency noise and regenerated noise are eliminated in the acting in conjunction of give vent to anger air-vent on diffusing tube 4 and sound-absorbing material 2, finally realize the noise elimination of power generating equipment outlet pipe.
Claims (1)
1. power generating equipment impedance composite muffler, comprise housing, dividing plate, end cap, it is characterized in that: be respectively arranged with end cap at the two ends of described housing, two are provided with dividing plate between end cap and housing, two end caps and housing are divided into three cavitys separated, sound-absorbing material is full of in the cavity that described housing is formed, air inlet diffusing tube and diffusing tube of giving vent to anger run through one end of housing and two-layer dividing plate respectively, make air inlet diffusing tube and give vent to anger diffusing tube run through end be positioned at housing opposite side end cap formed cavity, the sidewall of described air inlet diffusing tube is provided with multiple air-vent, diffusing tube sidewall of giving vent to anger in the cavity that described housing is formed is provided with multiple air-vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521254.8A CN104265408A (en) | 2014-09-30 | 2014-09-30 | Impedance compound muffler for power generating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521254.8A CN104265408A (en) | 2014-09-30 | 2014-09-30 | Impedance compound muffler for power generating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104265408A true CN104265408A (en) | 2015-01-07 |
Family
ID=52156966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410521254.8A Pending CN104265408A (en) | 2014-09-30 | 2014-09-30 | Impedance compound muffler for power generating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265408A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782485A (en) * | 2016-11-18 | 2017-05-31 | 宁德市银通发电设备有限公司 | A kind of impedance composite muffler |
-
2014
- 2014-09-30 CN CN201410521254.8A patent/CN104265408A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782485A (en) * | 2016-11-18 | 2017-05-31 | 宁德市银通发电设备有限公司 | A kind of impedance composite muffler |
| CN106782485B (en) * | 2016-11-18 | 2021-04-20 | 宁德市银通发电设备有限公司 | Impedance composite muffler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |