CN203640812U - Self-air-suction type labyrinth silencer - Google Patents
Self-air-suction type labyrinth silencer Download PDFInfo
- Publication number
- CN203640812U CN203640812U CN201320873305.4U CN201320873305U CN203640812U CN 203640812 U CN203640812 U CN 203640812U CN 201320873305 U CN201320873305 U CN 201320873305U CN 203640812 U CN203640812 U CN 203640812U
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- China
- Prior art keywords
- sound absorption
- labyrinth
- air
- self
- silencer
- 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 - Lifetime
Links
- 230000003584 silencer Effects 0.000 title abstract 9
- 238000010521 absorption reaction Methods 0.000 claims abstract description 22
- 230000030279 gene silencing Effects 0.000 claims abstract description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Exhaust Silencers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A self-air-suction type labyrinth silencer comprises an axial fan, a silencer body and sound absorption baffles, wherein the axial fan and the silencer body are connected into a whole through a flange plate, and the sound absorption baffles are arranged on the inner wall of a shell of the silencer body and are staggered to form a labyrinth channel. According to the staggered arrangement mode of the sound absorption baffles, the upper end of one sound absorption baffle is connected with the upper inner wall of the shell of the silencer body, and the lower end of the adjacent sound absorption baffle is connected with the lower inner wall of the shell of the silencer body. Through combination of the axial fan and the labyrinth silencer body, efficient self-air-suction type labyrinth silencing is achieved, and resistance losses of labyrinth silencing are largely lowered. The self-air-suction type labyrinth silencer is installed at an air outlet of a low-noise power station, and has the advantages that on one hand, air induction path is provided, the backpressure is small and the cooling effect is good, and on the other hand, sound attenuation of the labyrinth channel is large and the denoising effect is good.
Description
Technical field
The utility model relates to low noise electric station silencing apparatus, relates in particular to a kind of high efficiency self suction wind formula labyrinth silencing apparatus.
Background technique
The ventilation of air-cooled low noise electric station, noise reduction emphasis are exactly the noise reduction problem into and out of air port.The method of current employing has two kinds: the first is at exhaust outlet provided with fan air inducing, although the back pressure of induced wind path is little, good heat dissipation effect, because fan is directly external, noise reduction is poor; The second is that this method is difficult to solve the large problem of back pressure in noise reduction passage, and power station heat radiation is had to considerable influence at intake grill or middle part, air channel provided with fan.
Model utility content
The purpose of this utility model is to provide a kind of high efficiency self suction wind formula labyrinth silencing apparatus, and it has advantages of that resistance damages little, noise reduction and good heat dissipation effect.
The utility model is achieved like this, it comprises axial fan, muffler body and sound absorption baffle, it is characterized in that, axial fan and muffler body connect into an entirety by flange plate, in the inner walls of muffler body, be connected with several sound absorption baffles, the staggered formation labyrinth channel of these sound absorption baffles.The described staggered mode of sound absorption baffle is: inwall on the housing of the upper end connection muffler body of a sound absorption baffle, inwall under the housing of the lower end connection muffler body of the sound absorption baffle being adjacent.
Technique effect of the present utility model is: it has been realized high efficiency self suction wind formula labyrinth and eliminated the noise by the combination of axial fan and labyrinth silencing apparatus, greatly reduces the resistance of eliminating the noise in labyrinth and damages.At the exhaust outlet of low noise electric station, self-suction air formula labyrinth silencing apparatus is installed, the one, there is the feature of induced wind path: back pressure is little, good heat dissipation effect; The 2nd, the acoustic attenuation of labyrinth channel is large, excellent noise reduction effect.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Axial fan 2, muffler body 3, sound absorption baffle in the drawings, 1.
Embodiment
As shown in Figure 1, the utility model is achieved like this, axial fan 1 is dressed up integral type with muffler body 2 by flange plate, several staggered sound absorption baffles 3 are housed in the housing of muffler body 2, and multiple sound absorption baffles 3 have formed labyrinth channel, when acoustic energy passes through labyrinth channel, due to the resistance noise reduction effect of sound absorption baffle 3, make acoustic energy produce decay significantly, especially for medium-high frequency sound source, the resistance noise reduction of labyrinth channel has good noise reduction.
Whole self-suction air formula labyrinth silencing apparatus is arranged on the exhaust outlet of low noise box type power station, and in the time that axial fan 1 is switched on work, due to the effect of negative-pressure air-suction, the hot blast of discharge has less resistance to be damaged; But, due to the resistance noise reduction effect of sound absorption baffle 3, but can make acoustic energy produce decay significantly, especially for medium-high frequency sound source, the resistance noise reduction of labyrinth channel has good noise reduction.
Claims (2)
1. a self-suction air formula labyrinth silencing apparatus, it comprises axial fan, muffler body and sound absorption baffle, it is characterized in that, axial fan and muffler body connect into an entirety by flange plate, in the inner walls of muffler body, be connected with several sound absorption baffles, the staggered formation labyrinth channel of these sound absorption baffles.
2. a kind of self-suction air formula as claimed in claim 1 labyrinth silencing apparatus, it is characterized in that, the described staggered mode of sound absorption baffle is: inwall on the housing of the upper end connection muffler body of a sound absorption baffle, inwall under the housing of the lower end connection muffler body of the sound absorption baffle being adjacent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320873305.4U CN203640812U (en) | 2013-12-28 | 2013-12-28 | Self-air-suction type labyrinth silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320873305.4U CN203640812U (en) | 2013-12-28 | 2013-12-28 | Self-air-suction type labyrinth silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203640812U true CN203640812U (en) | 2014-06-11 |
Family
ID=50872066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320873305.4U Expired - Lifetime CN203640812U (en) | 2013-12-28 | 2013-12-28 | Self-air-suction type labyrinth silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203640812U (en) |
-
2013
- 2013-12-28 CN CN201320873305.4U patent/CN203640812U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 330096, B building, building 590, hi tech Avenue, Nanchang hi tech Zone, Jiangxi Patentee after: JIANGXI TELLHOW MILITARY PROJECT GROUP CO.,LTD. Address before: 330096, B building, building 590, hi tech Avenue, Nanchang hi tech Zone, Jiangxi Patentee before: JIANGXI QINGHUA TAIHAO MICRO MOTOR Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |