CN104008748A - Shuttle type sheet silencer - Google Patents
Shuttle type sheet silencer Download PDFInfo
- Publication number
- CN104008748A CN104008748A CN201410189122.XA CN201410189122A CN104008748A CN 104008748 A CN104008748 A CN 104008748A CN 201410189122 A CN201410189122 A CN 201410189122A CN 104008748 A CN104008748 A CN 104008748A
- Authority
- CN
- China
- Prior art keywords
- silencer
- shuttle type
- shuttle
- strip
- type
- 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.)
- Granted
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 27
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 5
- 239000008397 galvanized steel Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000011491 glass wool Substances 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009423 ventilation Methods 0.000 abstract description 3
- 230000030279 gene silencing Effects 0.000 abstract 4
- 230000001743 silencing effect Effects 0.000 abstract 2
- 238000009533 lab test Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
Landscapes
- Duct Arrangements (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a shuttle type sheet silencer. The shuttle type sheet silencer is characterized by comprising a rectangular case. A plurality of silencing units are arranged in the case at equal intervals. The cross section, in the airflow direction, of each silencing unit is of a shuttle shape with the two ends being sharp and the middle being wide. According to the shuttle type sheet silencer, a silencing piece with the rectangular cross section in a traditional silencer is changed into a silencing piece with the shuttle type cross section, a series of long and narrow ventilation paths similar to venturi pipes are manufactured, and therefore resistance loss of an air inlet/air exhaust of the silencer is greatly reduced without changing the through-flow area. Meanwhile, the shuttle type sheet silencer has the silencing effect similar to that of the traditional silencer, so that the problem that the traditional sheet silencer can not have the silencing effect and the ventilation effect at the same time is solved to a certain degree.
Description
Technical field
The present invention relates to a kind of noise elimination structure, be specifically related to a kind of shuttle type strip-type silencer of 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 low noise equipment can effectively fall, or say, sound suppressor is a kind ofly to have sound absorption liner or low noise gas channel can effectively fall in special structure form.As can be seen here, as the series of products of sound suppressor, must provide acoustic attenuation performance and performance of ventilating two indexs simultaneously.Conventionally, performance of ventilating is again aerodynamic quality, is one of important indicator of 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 are poor, if obtain larger sound deadening capacity, certainly will realize with the larger resistance of loss; If obtain less drag losses, certainly will be to sacrifice larger acoustic attenuation performance.And if after a very high sound suppressor of sound deadening capacity is arranged in ventilating system, because aerodynamic quality is poor, resistance is very large, and whole ventilating system cannot normally be moved, this sound suppressor just can not use.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of shuttle type strip-type silencer of taking into account acoustic attenuation performance and aerodynamic quality.
For achieving the above object, the present invention 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 described in each, muffling unit is pointed at both ends, middle wide fusiformis along the xsect of airflow direction.
In a preferred embodiment, described muffling unit comprises that an xsect is the perforation protection slab of fusiformis, and is provided with some supports in described perforation protection slab.
In a preferred embodiment, resistive acoustic absorbant is filled or do not filled to the concrete purposes of described muffling unit internal condition.
In a preferred embodiment, described resistive acoustic absorbant employing unit weight is 48kg/m
3centrifugally glass-wool.
In a preferred embodiment, it is 0.8mm that described perforation protection slab adopts thickness,
percentage of perforation is 30% zinc-plated perforated plate, and described perforation protection slab inner side tiling plain weave alkali-free hydrophobic glass silk cloth.
In a preferred embodiment, described housing adopts the galvanized steel plain sheet that thickness is 1.2mm.
The present invention is owing to taking above technical scheme, it has the following advantages: the present invention is by changing conventional muffler xsect (along airflow direction) into anechoic sheet that xsect is shuttle type for the anechoic sheet of rectangle, manufacture a series of long and narrow ventilating paths that are similar to Venturi tube, thereby in the situation that not changing flow area, the resistance that significantly reduces enter/exhaust outlet of sound suppressor damages; Meanwhile, the present invention can obtain the soundproof effect approximate with conventional muffler, has solved to a certain extent the problem that traditional strip-type silencer soundproof effect and ventilation effect can not get both.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is carried out to detailed describing.Yet only providing in order to understand better the present invention of accompanying drawing is provided, they not should be understood to limitation of the present invention.
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to cut-open view.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1 and Figure 2, the present invention includes a rectangular housing 1, the interior spaced set of housing 1 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 that an xsect is the perforation protection slab 21 of fusiformis, and is provided with some supports 22 in perforation protection slab 21.
In a preferred embodiment, resistive acoustic absorbant be filled or do not filled in muffling unit 2 inside can according to concrete purposes, conventionally when perforation protection slab 21 is microwell plate or ultra micro orifice plate, inner without filling resistive acoustic absorbant, mainly rely on the resistance acoustically effective of muffling unit 2; And when perforation protection slab 21 only plays mask, do the used time, the inner resistive acoustic absorbant 23 of filling that needs.In the present embodiment, resistive acoustic absorbant 23 employing unit weights are 48kg/m
3centrifugally glass-wool.
In a preferred embodiment, it is 0.8mm that perforation protection slab 21 adopts thickness,
percentage of perforation is 30% zinc-plated perforated plate, and perforation protection slab 21 inner side tiling plain weave alkali-free hydrophobic glass silk cloth.
In a preferred embodiment, housing 1 adopts the galvanized steel plain sheet that thickness is 1.2mm.
Be below the present invention and traditional directly laboratory test results of strip-type silencer:
Table one shuttle matrix formula sound deadening capacity test result
The straight strip-type silencer sound deadening capacity test result of table two tradition
The contrast of table three resistance coefficient
By above laboratory test results, can see intuitively, the present invention reduces 40% left and right than 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 present invention, in the situation that not changing flow area, significantly reduces the drag losses of enter/exhaust outlet of sound suppressor; Meanwhile, obtain the soundproof effect approximate with the straight strip-type silencer of tradition.
The various embodiments described above are only for illustrating the present invention; 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 solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (9)
1. a shuttle type strip-type silencer, is characterized in that, this sound suppressor comprises a rectangular housing, and in described housing, spaced set has some muffling units, and described in each, muffling unit is pointed at both ends, middle wide fusiformis along the xsect of airflow direction.
2. a kind of shuttle type strip-type silencer as claimed in claim 1, is characterized in that, described muffling unit comprises that an xsect is the perforation protection slab of fusiformis, and is provided with some supports in described perforation protection slab.
3. a kind of shuttle type strip-type silencer as claimed in claim 1, is characterized in that, resistive acoustic absorbant is filled or do not filled to the concrete purposes of described muffling unit internal condition.
4. a kind of shuttle type strip-type silencer as claimed in claim 2, is characterized in that, resistive acoustic absorbant is filled or do not filled to the concrete purposes of described muffling unit internal condition.
5. a kind of shuttle type strip-type silencer as described in claim 3 or 4, is characterized in that, it is 48kg/m that described resistive acoustic absorbant adopts unit weight
3centrifugally glass-wool.
6. a kind of shuttle type strip-type silencer as described in claim 2 or 4, is characterized in that, it is 0.8mm that described perforation protection slab adopts thickness,
percentage of perforation is 30% zinc-plated perforated plate, and described perforation protection slab inner side tiling plain weave alkali-free hydrophobic glass silk cloth.
7. a kind of shuttle type strip-type silencer as claimed in claim 1 or 2 or 3 or 4, is characterized in that, described housing adopts the galvanized steel plain sheet that thickness is 1.2mm.
8. a kind of shuttle type strip-type silencer as claimed in claim 5, is characterized in that, described housing adopts the galvanized steel plain sheet that thickness is 1.2mm.
9. a kind of shuttle type strip-type silencer as claimed in claim 6, is characterized in that, described housing adopts the galvanized steel plain sheet that thickness is 1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410189122.XA CN104008748B (en) | 2014-05-06 | 2014-05-06 | A kind of shuttle-type strip-type silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410189122.XA CN104008748B (en) | 2014-05-06 | 2014-05-06 | A kind of shuttle-type strip-type silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104008748A true CN104008748A (en) | 2014-08-27 |
| CN104008748B CN104008748B (en) | 2017-12-26 |
Family
ID=51369376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410189122.XA Active CN104008748B (en) | 2014-05-06 | 2014-05-06 | A kind of shuttle-type strip-type silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104008748B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488833A (en) * | 2018-12-12 | 2019-03-19 | 华电重工股份有限公司 | A kind of strip-type silencer |
| CN110595052A (en) * | 2019-09-20 | 2019-12-20 | 武汉源海博创科技有限公司 | Silencer with adjustable and excellent performance adapting to air inlet parameters |
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| CN202090995U (en) * | 2011-06-20 | 2011-12-28 | 四川正升声学科技有限公司 | Slice-type silencer |
| CN102522079A (en) * | 2012-01-10 | 2012-06-27 | 厦门嘉达环保建造工程有限公司 | Impedance compound right-angled muffler |
| CN102629739A (en) * | 2012-04-10 | 2012-08-08 | 上海交通大学 | Thin noise reduction structure capable of naturally ventilating for indoor substation |
| CN102829650A (en) * | 2012-07-20 | 2012-12-19 | 浙江东发环保工程有限公司 | Sound eliminating and noise lowering device of large-sized natural ventilation cooling tower in thermal power plant |
| CN202746297U (en) * | 2012-06-29 | 2013-02-20 | 无锡杰尔压缩机有限公司 | Sound elimination structure of fan filtering sound eliminator |
| CN203232692U (en) * | 2013-05-23 | 2013-10-09 | 龙泉市砩矿有限责任公司 | Sound absorption and insulation cover |
| CN103471419A (en) * | 2013-09-23 | 2013-12-25 | 北京中亚康源环保工程有限公司 | Directional exhaust noise attenuation system of large machine ventilation cooling tower |
| CN103471420A (en) * | 2013-09-23 | 2013-12-25 | 北京中亚康源环保工程有限公司 | Noise control device for air inlet of large machine ventilation cooling tower |
| CN103471418A (en) * | 2013-09-23 | 2013-12-25 | 北京中亚康源环保工程有限公司 | Noise control device for air outlet of large machine ventilation cooling tower |
| CN203532197U (en) * | 2013-10-15 | 2014-04-09 | 上海市安装工程集团有限公司 | Sound elimination plate of resistive plate type sound eliminator |
| CN204087782U (en) * | 2014-05-06 | 2015-01-07 | 北京绿创声学工程设计研究院有限公司 | Shuttle-type strip-type silencer |
-
2014
- 2014-05-06 CN CN201410189122.XA patent/CN104008748B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584976A (en) * | 2003-08-18 | 2005-02-23 | 上海电力设计院有限公司 | Anti-noise laminated material and louvers therefrom |
| CN202090995U (en) * | 2011-06-20 | 2011-12-28 | 四川正升声学科技有限公司 | Slice-type silencer |
| CN102522079A (en) * | 2012-01-10 | 2012-06-27 | 厦门嘉达环保建造工程有限公司 | Impedance compound right-angled muffler |
| CN102629739A (en) * | 2012-04-10 | 2012-08-08 | 上海交通大学 | Thin noise reduction structure capable of naturally ventilating for indoor substation |
| CN202746297U (en) * | 2012-06-29 | 2013-02-20 | 无锡杰尔压缩机有限公司 | Sound elimination structure of fan filtering sound eliminator |
| CN102829650A (en) * | 2012-07-20 | 2012-12-19 | 浙江东发环保工程有限公司 | Sound eliminating and noise lowering device of large-sized natural ventilation cooling tower in thermal power plant |
| CN203232692U (en) * | 2013-05-23 | 2013-10-09 | 龙泉市砩矿有限责任公司 | Sound absorption and insulation cover |
| CN103471419A (en) * | 2013-09-23 | 2013-12-25 | 北京中亚康源环保工程有限公司 | Directional exhaust noise attenuation system of large machine ventilation cooling tower |
| CN103471420A (en) * | 2013-09-23 | 2013-12-25 | 北京中亚康源环保工程有限公司 | Noise control device for air inlet of large machine ventilation cooling tower |
| CN103471418A (en) * | 2013-09-23 | 2013-12-25 | 北京中亚康源环保工程有限公司 | Noise control device for air outlet of large machine ventilation cooling tower |
| CN203532197U (en) * | 2013-10-15 | 2014-04-09 | 上海市安装工程集团有限公司 | Sound elimination plate of resistive plate type sound eliminator |
| CN204087782U (en) * | 2014-05-06 | 2015-01-07 | 北京绿创声学工程设计研究院有限公司 | Shuttle-type strip-type silencer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488833A (en) * | 2018-12-12 | 2019-03-19 | 华电重工股份有限公司 | A kind of strip-type silencer |
| CN109488833B (en) * | 2018-12-12 | 2024-04-23 | 华电重工股份有限公司 | Sheet type muffler |
| CN110595052A (en) * | 2019-09-20 | 2019-12-20 | 武汉源海博创科技有限公司 | Silencer with adjustable and excellent performance adapting to air inlet parameters |
| CN110595052B (en) * | 2019-09-20 | 2022-03-18 | 宁波源海博创科技有限公司 | Silencer with adjustable and excellent performance adapting to air inlet parameters |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104008748B (en) | 2017-12-26 |
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