CN201723505U - Silencer used for fan of dust remover - Google Patents
Silencer used for fan of dust remover Download PDFInfo
- Publication number
- CN201723505U CN201723505U CN2010202252678U CN201020225267U CN201723505U CN 201723505 U CN201723505 U CN 201723505U CN 2010202252678 U CN2010202252678 U CN 2010202252678U CN 201020225267 U CN201020225267 U CN 201020225267U CN 201723505 U CN201723505 U CN 201723505U
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- silencing
- shell
- housing
- utility
- silencing apparatus
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Abstract
The utility model relates to a silencer used for a fan of a dust remover, comprising a shell, wherein the shell is a hollow structure; a micro-perforation board is sheathed inside the shell; a plurality of silencing slice groups positioned left and the right are embedded in the micro-perforation board; a plurality of silencing pieces positioned top and bottom are positioned in each group of the silencing piece group; two ends of the silencing piece are both in triangle shape, the left and right ends of the shell are both connected with a transition body. The silencer has the advantages of simple structure, good silencing effect and less drag loss.
Description
Technical field:
The utility model relates to a kind of silencing apparatus, particularly a kind of silencing apparatus that is used for the deduster blower fan.
Background technique:
Silencing apparatus is to stop sound transmission and a kind of device of allowing air communication to cross, is the important measures of eliminating air power noise.Silencing apparatus is mounted on the air-flow path of aerodynamic force equipment (as blower, air compressor) or the device of the reduction noise in the inlet and exhaust system.Silencing apparatus can stop the propagation of sound wave, allows the air communication mistake, is the effective tool of control noise.At present, noise pollution belongs to energy contamination, if should be less than 70 decibels, so present most of homemade blower fan all must fix a silencer according to state's laws regulation noise standard.But general silencing apparatus is installed on the deduster blower fan, and the noise elimination effect is bad, and the pressure loss is big.
Summary of the invention:
The purpose of this utility model is in order to overcome above deficiency, to provide a kind of simple in structure, the effective silencing apparatus that is used for the deduster blower fan of eliminating the noise.
The purpose of this utility model is achieved through the following technical solutions: a kind of silencing apparatus that is used for the deduster blower fan, comprise housing, housing is a hollow-core construction, inner walls is provided with one deck microperforated panel, microperforated panel is connected with the anechoic sheet group of placing about many groups, is provided with a plurality of anechoic sheets of placing up and down in every group of anechoic sheet group, and the two ends of each anechoic sheet are embedded in the microperforated panel, the rear and front end of each anechoic sheet is triangle, and the two ends, the left and right sides of housing all are connected with the transition body.
The utility model compared with prior art has the following advantages:
The utility model is the silencing apparatus of microperforated panel structure, can eliminate pneumatic noise in the frequency band range of broad, and have high temperature resistant, oil resistant is dirty, corrosion resistant performance, even have large quantity of moisture in air-flow, does not also influence work.Because penetration hole diameter is little, the plate face is smooth, so the silencing apparatus resistance is decreased littler than general dissipative muffler.Noise owing to the deduster blower fan is bigger simultaneously, thus adopted more anechoic sheet, the effect of the noise elimination that can well play, reliable performance, the pressure loss is little.
Description of drawings:
Fig. 1 is the sectional view of structural representation of the present utility model;
Fig. 2 is the structural representation of A-A among Fig. 1;
Number in the figure: 1-housing, 2-microperforated panel, 3-anechoic sheet, 4-transition body.
Embodiment:
In order to deepen understanding of the present utility model, the utility model is described in further detail below in conjunction with embodiment and accompanying drawing, and this embodiment only is used to explain the utility model, does not constitute the qualification to the utility model protection domain.
Show a kind of mode of execution that the utility model is used for the silencing apparatus of deduster blower fan as Fig. 1 and Fig. 2, comprise housing 1, housing 1 is a sound-absorbing material, housing 1 is a hollow-core construction, housing 1 is tetragonal body or cylindrical body, housing 1 inwall is provided with one deck microperforated panel 2, microperforated panel 2 is connected with the anechoic sheet group of placing about many groups, be provided with a plurality of anechoic sheets of placing up and down 3 in every group of anechoic sheet group, the two ends of each described anechoic sheet 3 are embedded in the microperforated panel 2, the rear and front end of each anechoic sheet 3 is triangle, one sound wave can be divided into the above sound wave of twice when running into the triangle end face, reduced the frequency of original sound wave, made that sound wave energy is better absorbed, the two ends, the left and right sides of housing 1 all are connected with transition body 4.The sound wave air-flow comes and goes vibration in the aperture of microperforated panel 2, carry out noise reduction.Housing 1 adopts the resistance noise reduction structure of rectangular cross-section, and is reasonable in design, adopts more anechoic sheet 3, and acoustic attenuation performance is reliable, and the pressure loss is little.
The utility model mainly is applicable to induction noise, also can be used for the noise reduction to exhaust duct and other high pressure positive blower.Because sound wave is in the process of propagating, its energy loss depends on the frictional loss of air in micropore, acoustic absorptivity can be improved in little space simultaneously, and low voids can increase the width of sound absorption frequency, and the air layer degree of depth behind the microperforated panel can change the position at resonance sound-absorbing peak.The utility model adopts the microperforated panel sound absorption, can in the frequency band range of broad, eliminate pneumatic noise, and have high temperature resistant, oil resistant is dirty, corrosion resistant performance, even in air-flow, have large quantity of moisture, do not influence work yet, because penetration hole diameter is little, the plate face is smooth, so the silencing apparatus resistance is decreased littler than general dissipative muffler.The utility model has also adopted more anechoic sheet, the effect of the noise elimination that can well play, and reliable performance, the pressure loss is little, and sound deadening capacity is 15-30dB (A), and the pressure loss is less than 500Pa.
Claims (2)
1. silencing apparatus that is used for the deduster blower fan, comprise housing (1), described housing (1) is a hollow-core construction, it is characterized in that: described housing (1) inwall is provided with one deck microperforated panel (2), described microperforated panel (2) is connected with the anechoic sheet group of placing about many groups, be provided with a plurality of anechoic sheets of placing up and down (3) in every group of described anechoic sheet group, the rear and front end of each described anechoic sheet (3) is embedded in the described microperforated panel (2), and the two ends, the left and right sides of described housing (1) all are connected with transition body (4).
2. according to the described silencing apparatus that is used for the deduster blower fan of claim 1, it is characterized in that: the two ends of each described anechoic sheet (3) are triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202252678U CN201723505U (en) | 2010-06-13 | 2010-06-13 | Silencer used for fan of dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202252678U CN201723505U (en) | 2010-06-13 | 2010-06-13 | Silencer used for fan of dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723505U true CN201723505U (en) | 2011-01-26 |
Family
ID=43491827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202252678U Expired - Fee Related CN201723505U (en) | 2010-06-13 | 2010-06-13 | Silencer used for fan of dust remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723505U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358856A (en) * | 2013-07-10 | 2013-10-23 | 奇瑞汽车股份有限公司 | Sound-absorption dust shield for passenger vehicle scavenge port |
| CN106128445A (en) * | 2016-08-26 | 2016-11-16 | 四川三元环境治理股份有限公司 | Full microperforated absorber acoustic filter |
-
2010
- 2010-06-13 CN CN2010202252678U patent/CN201723505U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358856A (en) * | 2013-07-10 | 2013-10-23 | 奇瑞汽车股份有限公司 | Sound-absorption dust shield for passenger vehicle scavenge port |
| CN106128445A (en) * | 2016-08-26 | 2016-11-16 | 四川三元环境治理股份有限公司 | Full microperforated absorber acoustic filter |
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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: 20110126 Termination date: 20110613 |