CN1644802A - Double-face sound-absorbing contacting oral cavity sound shield without cotton - Google Patents
Double-face sound-absorbing contacting oral cavity sound shield without cotton Download PDFInfo
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- CN1644802A CN1644802A CN 200510023452 CN200510023452A CN1644802A CN 1644802 A CN1644802 A CN 1644802A CN 200510023452 CN200510023452 CN 200510023452 CN 200510023452 A CN200510023452 A CN 200510023452A CN 1644802 A CN1644802 A CN 1644802A
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Abstract
A non-wool sound screen with engaged cavities and sound absorptive surfaces is composed of two aluminium fibres sheet layers as surficial layers, two empty cavity layers, two microhole plat layers, a toothed cavity, folded partion, and fixing frame. Its advantage is high effect to decrease noise.
Description
Technical field
What the present invention relates to is the cotton slim sound barrier of nothing of a kind of sound barrier, particularly a kind of double-face sound-absorbing, belongs to the field of noise control in the Environmental Engineering.
Background technology
The Noise Control problem more and more is subject to people's attention, and ambient noise is directly connected to people's quality of life, even people's physiology and mental health is had material impact.Sound barrier is the critical facility of track traffic, elevated road and the control of speedway noise, and present sound barrier normally is installed in the one or both sides of road or track circuit, can be divided into absorbing sound type and sound insulation type two big classes.Wherein the absorbing sound type sound barrier has higher sound absorption coefficient in the face of a side of sound source, and normally do not absorb sound back to a side of sound source; The two sides of sound insulation type sound barrier does not absorb sound.In order further to reduce the noise of track traffic and road, sometimes need be between the track of (as above, between the downlink) or road between the railway circuit of (comprising urban track traffic) setting height(from bottom) sound barrier, because the both sides of barrier are the face of noise source all, therefore, the sound barrier that needs a kind of double-face sound-absorbing.And, because the restriction of installing space often has the qualification of comparison strictness to the width of double-side absorbing sound type sound barrier.Designing and producing also of sound barrier will be satisfied many-sided requirements such as effect, life-span and environmental protection.
Find through literature search prior art, the utility model name is called: micropunch gobo baffle, number of patent application: 03260902.7, publication number: 2627056, this patent readme is: " the utility model relates to a kind of micropunch gobo baffle; be made up of panel, backboard and skeleton, described panel and backboard are separately fixed on the described skeleton, it is characterized in that: described panel by thickness of slab and piercing aperture all below 1mm, perforated percentage is that 1～3% thin plate is made.The utility model is owing to thickness of slab and the piercing aperture with panel all is arranged on below the 1mm, form micropunch, and make perforated percentage be reduced to 1～3%, therefore, when panel and resonance sound-absorbing structure of backboard composition, because perforation is close and thin, thereby it is more much bigger than the acoustic resistance of perforated plate of the prior art, need not add any porous absorption material in addition just can become good sound absorption construction, and the reinforcement of the assimilation effect of noise, and the frequency range of absorption of noise is widened.”。This sound barrier has the advantages that not adopt natural or artificial cotton fiber, but because the sound absorption construction that this sound barrier has only used one deck microperforated panel to constitute, the width of sound sucting band is just smaller, is difficult to satisfy the frequency requirement of traffic noise control.This sound barrier has only one side sound absorption simultaneously, and being not suitable for using in both sides all is between the track and track of noise source, if two these type sound barriers are combined as the barrier of double-face sound-absorbing back-to-back, gross thickness will be the twice of single face sound barrier.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art and defective, a kind of contacting oral cavity sound shield without cotton of double-face sound-absorbing is provided, make it can be installed between the railway circuit of (comprising urban track traffic) or between the track of road, satisfy the requirement of traffic noise control.
The present invention is achieved by the following technical solutions, the present invention includes: two-layer aluminum fiber thin plate, two-layer cavity, two layers of porous plates, flute profile cavity, folding dividing plate, framework all around.The sound absorption face of sound barrier both sides is the aluminum fiber thin plate, be two-layer cavity between two-layer aluminum fiber thin plate, the two layers of porous plates, be the flute profile cavity between microperforated panel, the collapsible dividing plate, the position of all around frame fixation aluminum fiber thin plate, microperforated panel and collapsible dividing plate.
The sound absorption face of sound barrier both sides is two external surfaces of sound barrier, it all is the aluminum fiber thin plate, cavity between aluminum fiber thin plate and the microperforated panel constitutes first group of sound absorption construction, microperforated panel and flute profile cavity constitute second group of sound absorption construction, respectively there is one group of flute profile cavity the behind of two layers of porous plates, two groups of flute profile cavitys are meshing with each other, and are engagement type cavity.
Adopt engagement type cavity to reduce the thickness of sound barrier greatly, this is a technical essential of the present invention.Engagement type cavity is made of steel plate or the good material sound barrier folding or combination of other sound insulation properties, and sound barrier prevents the effect of the noise transmitted sound barrier of sound barrier one side to opposite side in addition.Two groups of sound absorption constructions of every side are the different frequency of corresponding noise respectively.First group of sound absorption construction that cavity between aluminum fiber thin plate and the microperforated panel constitutes is at the high frequency composition of traffic noise, second group of sound absorption construction that microperforated panel and flute profile cavity constitute is to the medium and low frequency composition of traffic noise, test shows, sound barrier at the sound absorption mean coefficient of three octaves of the main frequency scope 250 ~ 2000Hz of traffic noise greater than 0.8, can absorb the acoustic energy of traffic noise 80%, thereby reduce the pollution of traffic noise surrounding enviroment.And " micropunch gobo baffle " in the background technology adopts the individual layer perforated microstructure, and the width of sound sucting band has only about two octaves usually.
The aluminum fiber thin plate of sound barrier two side external surfaces also can use iron nickel foam plate, foaming aluminium sheet and other metallic fiber classes or foaming metal class material to replace.Little hollow plate of wearing also can use aluminum fiber thin plate, iron nickel foam plate, foaming aluminium sheet and other metallic fiber classes or foaming metal class material to replace.
The present invention has substantive distinguishing features and marked improvement, do not adopt the fibrous material of non-metal kinds such as natural cotton, synthetic cotton, glass wool, sponge, rock wool and mineral wool, so sound barrier of the present invention has the advantage of long, renewable, environmental protection of life-span at any position of sound barrier.The cavity of sound barrier both sides adopts intermeshing tooth type structures, has reduced the thickness of sound barrier greatly, and gross thickness has been widened the sound sucting band of sound barrier below 200mm, and the average sound absorption coefficient of 250 ~ 2000Hz is greater than 0.8.The present invention is installed between the uplink and downlink track of railway or city rail traffic route, perhaps between the track of multilane highway, can significantly reduces traffic noise.
Description of drawings
Fig. 1 cross section structure schematic diagram of the present invention
Fig. 2 Facad structure schematic diagram of the present invention
Fig. 3 vertical view of the present invention
The specific embodiment
Shown in Fig. 1 ~ 3, the present invention includes: two-layer aluminum fiber thin plate 1, two-layer cavity 2, two layers of porous plates 3, flute profile cavity 4, folding dividing plate 5, framework all around 6.The sound absorption face of sound barrier both sides is aluminum fiber thin plate 1, it between two-layer aluminum fiber thin plate 1, the two layers of porous plates 3 two-layer cavity 2, be flute profile cavity 4 between microperforated panel 3, the collapsible dividing plate 5, framework 6 all around is the position of aluminum fiber thin plate 1, microperforated panel 3 and collapsible dividing plate 5 fixedly.
The sound absorption face of sound barrier both sides is two external surfaces of sound barrier, it all is the aluminum fiber thin plate, aluminum fiber thin plate 1 constitutes first group of sound absorption construction with cavity 2, microperforated panel 3 and flute profile cavity 4 constitute second group of sound absorption construction, respectively there is one group of flute profile cavity 4 behind of two layers of porous plates 3, two groups of flute profile cavitys are meshing with each other, so be called engagement type cavity.
Each sound absorption face is made up of two groups of sound absorption constructions respectively, acoustic frequency bandwidth, and the sound absorption coefficient of two sound absorption faces is identical.
Claims (3)
1, a kind of double-face sound-absorbing contacting oral cavity sound shield without cotton, comprise: two-layer aluminum fiber thin plate (1), two-layer cavity (2), two layers of porous plates (3), framework all around (6), it is characterized in that, also comprise: flute profile cavity (4), folding dividing plate (5), the sound absorption face of sound barrier both sides is aluminum fiber thin plate (1), two-layer aluminum fiber thin plate (1), between the two layers of porous plates (3) two-layer cavity (2), microperforated panel (3), be flute profile cavity (4) between the collapsible dividing plate (5), framework all around (6) is aluminum fiber thin plate (1) fixedly, the position of microperforated panel (3) and collapsible dividing plate (5).
2, double-face sound-absorbing contacting oral cavity sound shield without cotton according to claim 1, it is characterized in that, aluminum fiber thin plate (1) constitutes first group of sound absorption construction with cavity (2), microperforated panel (3) and flute profile cavity (4) constitute second group of sound absorption construction, respectively there is one group of flute profile cavity (4) behind of two layers of porous plates (3), two groups of flute profile cavitys (4) are meshing with each other, and are engagement type cavity.
According to claim 1 or 2 described double-face sound-absorbing contacting oral cavity sound shield without cotton, it is characterized in that 3, each sound absorption face is made up of two groups of sound absorption constructions respectively, acoustic frequency bandwidth, the sound absorption coefficient of two sound absorption faces is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100234522A CN1332096C (en) | 2005-01-20 | 2005-01-20 | Double-face sound-absorbing contacting oral cavity sound shield without cotton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100234522A CN1332096C (en) | 2005-01-20 | 2005-01-20 | Double-face sound-absorbing contacting oral cavity sound shield without cotton |
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| Publication Number | Publication Date |
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| CN1644802A true CN1644802A (en) | 2005-07-27 |
| CN1332096C CN1332096C (en) | 2007-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100234522A Expired - Fee Related CN1332096C (en) | 2005-01-20 | 2005-01-20 | Double-face sound-absorbing contacting oral cavity sound shield without cotton |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081924A (en) * | 2009-11-30 | 2011-06-01 | 株式会社神户制钢所 | Sound insulation material, sound insulation system and manufacturing method of sound insulation material |
| CN102149874A (en) * | 2008-08-12 | 2011-08-10 | 托马斯·威廉·延森 | A guard rail including noise-reducing measures |
| CN102332258A (en) * | 2011-09-01 | 2012-01-25 | 西北工业大学 | Metal fiber porous material with inner hollow structure and preparation method thereof |
| CN102842303A (en) * | 2011-06-23 | 2012-12-26 | 中国电力科学研究院 | Microporous-fiber composite sound absorbing board |
| CN103968364A (en) * | 2013-12-24 | 2014-08-06 | 华电重工股份有限公司 | Method and device for controlling noise in waste heat boiler |
| CN104532974A (en) * | 2014-12-26 | 2015-04-22 | 桂林电子科技大学 | Noise elimination device in public places |
| CN104968861A (en) * | 2013-04-12 | 2015-10-07 | 创新声学有限公司 | A noise barrier and a method of costruction thereof |
| CN105027193A (en) * | 2013-02-27 | 2015-11-04 | 株式会社神户制钢所 | Sound insulating structure |
| CN105297646A (en) * | 2015-12-07 | 2016-02-03 | 华北水利水电大学 | Noise prevention and sound insulation barrier for building structure |
| CN105803965A (en) * | 2016-04-28 | 2016-07-27 | 中国铁道科学研究院 | Wideband sound absorption unit plate |
| CN106205588A (en) * | 2016-08-26 | 2016-12-07 | 四川三元环境治理股份有限公司 | Multilamellar perforated microstructure noise elimination flow deflector |
| CN106601224A (en) * | 2017-02-14 | 2017-04-26 | 四川正升声学科技有限公司 | Hybrid-structure road noise barrier plate |
| CN108221724A (en) * | 2018-02-01 | 2018-06-29 | 中纬建设工程有限公司 | A kind of municipal administration noise reduction isolation strip |
| CN109774262A (en) * | 2019-03-14 | 2019-05-21 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of compound sound-insulation wallboard of ship's space segmentation |
| CN110106999A (en) * | 2019-03-29 | 2019-08-09 | 深圳中天精装股份有限公司 | A kind of assembled architecture sound-absorbing timber partition and its design method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3706487A1 (en) * | 1987-02-27 | 1988-09-08 | Gruenzweig Hartmann Glasfaser | Insulating panel, in particular consisting of mineral fibres |
| DE69008732T2 (en) * | 1989-09-26 | 1994-11-24 | Gesertek Oy, Kouvola | METHOD FOR PRODUCING A COMPOSITE BRIDGE. |
| CN1190687A (en) * | 1998-02-22 | 1998-08-19 | 韩子斌 | Net type silencing screen |
| SI20753A (en) * | 2000-11-10 | 2002-06-30 | CITY STUDIO prostorsko načrtovanje d.o.o., Ljubljana | Noise-proof fence |
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2005
- 2005-01-20 CN CNB2005100234522A patent/CN1332096C/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149874A (en) * | 2008-08-12 | 2011-08-10 | 托马斯·威廉·延森 | A guard rail including noise-reducing measures |
| CN104947611A (en) * | 2008-08-12 | 2015-09-30 | 托马斯·威廉·延森 | A guard rail including noise-reducing measures |
| CN102081924B (en) * | 2009-11-30 | 2013-07-31 | 株式会社神户制钢所 | Sound insulation material, sound insulation system and manufacturing method of sound insulation material |
| CN102081924A (en) * | 2009-11-30 | 2011-06-01 | 株式会社神户制钢所 | Sound insulation material, sound insulation system and manufacturing method of sound insulation material |
| CN102842303A (en) * | 2011-06-23 | 2012-12-26 | 中国电力科学研究院 | Microporous-fiber composite sound absorbing board |
| CN102332258A (en) * | 2011-09-01 | 2012-01-25 | 西北工业大学 | Metal fiber porous material with inner hollow structure and preparation method thereof |
| CN102332258B (en) * | 2011-09-01 | 2013-05-08 | 西北工业大学 | Metal fiber porous material with inner hollow structure and preparation method thereof |
| CN105027193B (en) * | 2013-02-27 | 2018-12-21 | 株式会社神户制钢所 | Sound insulating construction |
| CN105027193A (en) * | 2013-02-27 | 2015-11-04 | 株式会社神户制钢所 | Sound insulating structure |
| CN104968861A (en) * | 2013-04-12 | 2015-10-07 | 创新声学有限公司 | A noise barrier and a method of costruction thereof |
| CN103968364B (en) * | 2013-12-24 | 2016-02-03 | 华电重工股份有限公司 | The control method of internal noise of waste heat boiler and device |
| CN103968364A (en) * | 2013-12-24 | 2014-08-06 | 华电重工股份有限公司 | Method and device for controlling noise in waste heat boiler |
| CN104532974A (en) * | 2014-12-26 | 2015-04-22 | 桂林电子科技大学 | Noise elimination device in public places |
| CN105297646A (en) * | 2015-12-07 | 2016-02-03 | 华北水利水电大学 | Noise prevention and sound insulation barrier for building structure |
| CN105297646B (en) * | 2015-12-07 | 2017-09-01 | 华北水利水电大学 | A kind of noise control acoustic barrier of building structure |
| CN105803965B (en) * | 2016-04-28 | 2018-04-10 | 中国铁道科学研究院 | A kind of broadband sound absorption cell board |
| CN105803965A (en) * | 2016-04-28 | 2016-07-27 | 中国铁道科学研究院 | Wideband sound absorption unit plate |
| CN106205588A (en) * | 2016-08-26 | 2016-12-07 | 四川三元环境治理股份有限公司 | Multilamellar perforated microstructure noise elimination flow deflector |
| CN106205588B (en) * | 2016-08-26 | 2022-10-28 | 四川三元环境治理股份有限公司 | Multilayer micro-perforated structure noise elimination flow deflector |
| CN106601224A (en) * | 2017-02-14 | 2017-04-26 | 四川正升声学科技有限公司 | Hybrid-structure road noise barrier plate |
| CN106601224B (en) * | 2017-02-14 | 2023-07-18 | 正升环境科技股份有限公司 | Highway sound barrier board with series-parallel structure |
| CN108221724A (en) * | 2018-02-01 | 2018-06-29 | 中纬建设工程有限公司 | A kind of municipal administration noise reduction isolation strip |
| CN109774262A (en) * | 2019-03-14 | 2019-05-21 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of compound sound-insulation wallboard of ship's space segmentation |
| CN110106999A (en) * | 2019-03-29 | 2019-08-09 | 深圳中天精装股份有限公司 | A kind of assembled architecture sound-absorbing timber partition and its design method |
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| Publication number | Publication date |
|---|---|
| CN1332096C (en) | 2007-08-15 |
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Granted publication date: 20070815 Termination date: 20100220 |