CN204087782U - Shuttle-type strip-type silencer - Google Patents
Shuttle-type strip-type silencer Download PDFInfo
- Publication number
- CN204087782U CN204087782U CN201420228496.3U CN201420228496U CN204087782U CN 204087782 U CN204087782 U CN 204087782U CN 201420228496 U CN201420228496 U CN 201420228496U CN 204087782 U CN204087782 U CN 204087782U
- Authority
- CN
- China
- Prior art keywords
- type
- shuttle
- strip
- silencer
- type 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.)
- Withdrawn - After Issue
Links
Landscapes
- Exhaust Silencers (AREA)
- Duct Arrangements (AREA)
- Building Environments (AREA)
Abstract
The utility model relates to a kind of shuttle-type strip-type silencer, it is characterized in that, this sound suppressor comprises a rectangular housing, and in described housing, spaced set has some muffling units, and muffling unit described in each is pointed at both ends, middle wide fusiformis along the xsect of airflow direction.The utility model is by being that the anechoic sheet of rectangle changes the anechoic sheet that xsect is shuttle-type into by conventional muffler xsect, manufacture a series of long and narrow ventilating path being similar to Venturi tube, thus when not changing flow area, significantly reducing sound suppressor enters/resistance of exhaust outlet damages; Meanwhile, the utility model can obtain the soundproof effect approximate with conventional muffler, solves the problem that traditional strip-type silencer soundproof effect and ventilation effect can not get both to a certain extent.
Description
Technical field
The utility model relates to a kind of noise elimination structure, is specifically related to a kind of shuttle-type strip-type silencer taking into account acoustic attenuation performance and aerodynamic quality.
Background technology
Sound suppressor be a kind of not only can make air-flow smoothly by but also effectively can reduce the equipment of noise, or say, sound suppressor a kind ofly has the gas channel that sound absorption liner or special structure form effectively can reduce noise.As can be seen here, as the series of products of sound suppressor, acoustic attenuation performance and performance of ventilating two indices must be provided simultaneously.Usually, performance of ventilating is aerodynamic quality again, and being one of important indicator evaluating Muffler Performance, is also the factor that should take into full account in muffler desing.The acoustic attenuation performance of conventional muffler and the compatibility of aerodynamic quality poor, if namely larger sound deadening capacity will be obtained, certainly will to lose larger resistance to realize; If obtain less drag losses, certainly will to sacrifice larger acoustic attenuation performance.And if the very high sound suppressor of sound deadening capacity is arranged on after in ventilating system, because aerodynamic quality is poor, resistance is very large, and make whole ventilating system normally run, then this sound suppressor just can not use.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of shuttle-type strip-type silencer taking into account acoustic attenuation performance and aerodynamic quality.
For achieving the above object, the utility model takes following technical scheme: a kind of shuttle-type strip-type silencer, it is characterized in that, this sound suppressor comprises a rectangular housing, in described housing, spaced set has some muffling units, and muffling unit described in each is pointed at both ends, middle wide fusiformis along the xsect of airflow direction.
In a preferred embodiment, described muffling unit comprises the perforation protection slab that an xsect is fusiformis, and is provided with some supports in described perforation protection slab.
In a preferred embodiment, described muffling unit is inner fills according to concrete purposes or does not fill resistive acoustic absorbant.
In a preferred embodiment, described resistive acoustic absorbant adopts unit weight to be 48kg/m
3centrifugally glass-wool.
In a preferred embodiment, described perforation protection slab adopts thickness to be 0.8mm, aperture
percentage of perforation is the zinc-plated perforated plate of 30%, and the plain weave alkali-free hydrophobic glass silk cloth that tiles inside described perforation protection slab.
In a preferred embodiment, described housing adopts thickness to be the galvanized steel plain sheet of 1.2mm.
The utility model is owing to taking above technical scheme, it has the following advantages: the utility model changes by the anechoic sheet being rectangle by conventional muffler xsect (along airflow direction) anechoic sheet that xsect is shuttle-type into, manufacture a series of long and narrow ventilating path being similar to Venturi tube, thus when not changing flow area, significantly reducing sound suppressor enters/resistance of exhaust outlet damages; Meanwhile, the utility model can obtain the soundproof effect approximate with conventional muffler, solves the problem that traditional strip-type silencer soundproof effect and ventilation effect can not get both to a certain extent.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description is carried out to the utility model.But should be appreciated that being provided only of accompanying drawing understands the utility model better, they not should be appreciated that paired restriction of the present utility model.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to cut-open view.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1 and Figure 2, the utility model comprises a rectangular housing 1, and in housing 1, spaced set has some muffling units 2, and each muffling unit 2 is pointed at both ends, middle wide fusiformis along the xsect of airflow direction.
In a preferred embodiment, muffling unit 2 comprises the perforation protection slab 21 that an xsect is fusiformis, and is provided with some supports 22 in perforation protection slab 21.
In a preferred embodiment, muffling unit 2 inside can be filled according to concrete purposes or not fill resistive acoustic absorbant, usually when perforation protection slab 21 be microwell plate or ultra micro orifice plate time, inner without the need to filling resistive acoustic absorbant, the mainly resistance acoustically effective of dependence muffling unit 2; And when protection slab 21 of boring a hole only plays mask effect, resistive acoustic absorbant 23 need be filled in inside.In the present embodiment, resistive acoustic absorbant 23 adopts unit weight to be 48kg/m
3centrifugally glass-wool.
In a preferred embodiment, perforation protection slab 21 adopts thickness to be 0.8mm, aperture
percentage of perforation is the zinc-plated perforated plate of 30%, and the plain weave alkali-free hydrophobic glass silk cloth that tiles inside perforation protection slab 21.
In a preferred embodiment, housing 1 adopts thickness to be the galvanized steel plain sheet of 1.2mm.
Be below the laboratory test results of the utility model and the straight strip-type silencer of tradition:
Table one shuttle-type chip sound deadening capacity test result
The straight strip-type silencer sound deadening capacity test result of table two tradition
Table three resistance coefficient contrasts
Can intuitively be arrived by above laboratory test results, the utility model reduces about 40% compared to the resistance of the straight strip-type silencer of tradition, but average sound deadening capacity only reduces 1.8dB.As can be seen here, the utility model, when not changing flow area, significantly reduces sound suppressor and enters/the drag losses of exhaust outlet; Meanwhile, the soundproof effect approximate with the straight strip-type silencer of tradition is obtained.
The various embodiments described above are only for illustration of the utility model; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.
Claims (9)
1. a shuttle-type strip-type silencer, it is characterized in that, this sound suppressor comprises a rectangular housing, in described housing, spaced set has some muffling units, muffling unit described in each is pointed at both ends, middle wide fusiformis along the xsect of airflow direction, to manufacture the long and narrow ventilating path that is similar to Venturi tube between muffling unit described in adjacent two.
2. shuttle-type strip-type silencer as claimed in claim 1, it is characterized in that, described muffling unit comprises the perforation protection slab that an xsect is fusiformis, and is provided with some supports in described perforation protection slab.
3. shuttle-type strip-type silencer as claimed in claim 1, is characterized in that, described muffling unit is inner fills according to concrete purposes or does not fill resistive acoustic absorbant.
4. shuttle-type strip-type silencer as claimed in claim 2, is characterized in that, described muffling unit is inner fills according to concrete purposes or does not fill resistive acoustic absorbant.
5. the shuttle-type strip-type silencer as described in claim 3 or 4, is characterized in that, described resistive acoustic absorbant adopts unit weight to be 48kg/m
3centrifugally glass-wool.
6. the shuttle-type strip-type silencer as described in claim 2 or 4, is characterized in that, described perforation protection slab adopts thickness to be 0.8mm, aperture
, percentage of perforation is the zinc-plated perforated plate of 30%, and the plain weave alkali-free hydrophobic glass silk cloth that tiles inside described perforation protection slab.
7. shuttle-type strip-type silencer as claimed in claim 1 or 2 or 3 or 4, is characterized in that, described housing adopts thickness to be the galvanized steel plain sheet of 1.2mm.
8. shuttle-type strip-type silencer as claimed in claim 5, is characterized in that, described housing adopts thickness to be the galvanized steel plain sheet of 1.2mm.
9. shuttle-type strip-type silencer as claimed in claim 6, is characterized in that, described housing adopts thickness to be the galvanized steel plain sheet of 1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420228496.3U CN204087782U (en) | 2014-05-06 | 2014-05-06 | Shuttle-type strip-type silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420228496.3U CN204087782U (en) | 2014-05-06 | 2014-05-06 | Shuttle-type strip-type silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204087782U true CN204087782U (en) | 2015-01-07 |
Family
ID=52180464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420228496.3U Withdrawn - After Issue CN204087782U (en) | 2014-05-06 | 2014-05-06 | Shuttle-type strip-type silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204087782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008748A (en) * | 2014-05-06 | 2014-08-27 | 北京绿创声学工程设计研究院有限公司 | Shuttle type sheet silencer |
-
2014
- 2014-05-06 CN CN201420228496.3U patent/CN204087782U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008748A (en) * | 2014-05-06 | 2014-08-27 | 北京绿创声学工程设计研究院有限公司 | Shuttle type sheet silencer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016054947A1 (en) | Vacuum cleaner | |
| CN204082265U (en) | A kind of exhaust silencer | |
| CN103383138A (en) | Sound absorbing wedge muffler | |
| CN203925671U (en) | Symmetric type three chamber bafflers | |
| CN201723275U (en) | Micropunch plate muffler | |
| CN101949568A (en) | Maze type broadband sound-proof ventilator | |
| CN207634397U (en) | Ventilation silencer | |
| CN204087782U (en) | Shuttle-type strip-type silencer | |
| CN104008748B (en) | A kind of shuttle-type strip-type silencer | |
| CN104165450A (en) | Power recovery type tubular muffler | |
| CN211202430U (en) | Broadband silencer for centrifugal fan | |
| CN203010043U (en) | Silencing pipe | |
| CN209229984U (en) | Phonon crystal type noise elimination array structure and air-conditioning system | |
| CN203893388U (en) | Power recycling type tubular silencer | |
| CN204703983U (en) | The effective silencing apparatus of a kind of automobile exhaust | |
| RU157128U1 (en) | COMBINED SILENCER OF AERODYNAMIC NOISE | |
| CN203297164U (en) | Silencer | |
| CN211082408U (en) | Microperforated panel combined type silencer | |
| CN204327348U (en) | A kind of pipeline high frequency silencing apparatus for turbosupercharger | |
| CN203532197U (en) | Sound elimination plate of resistive plate type sound eliminator | |
| CN204332355U (en) | Formaldehydeless environment-friendly type sound suppressor | |
| CN207741597U (en) | A kind of air outlet micropore plate muffler for crossflow cooling tower | |
| CN207348738U (en) | Dog-ear arc top noise elimination blinds | |
| CN201730657U (en) | Environment-friendly purification muffler | |
| CN104421218A (en) | Novel square bending-flow type muffle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150107 Effective date of abandoning: 20171226 |