CN205075423U - Compound sound absorbing structure of microperforated panel - activated carbon fiber - Google Patents
Compound sound absorbing structure of microperforated panel - activated carbon fiber Download PDFInfo
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- CN205075423U CN205075423U CN201520801745.8U CN201520801745U CN205075423U CN 205075423 U CN205075423 U CN 205075423U CN 201520801745 U CN201520801745 U CN 201520801745U CN 205075423 U CN205075423 U CN 205075423U
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- activated carbon
- microperforated panel
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- absorption
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Abstract
The utility model relates to a damping denoising technique field specificly relates to one kind and is applicable to the compound sound absorbing structure of microperforated panel - activated carbon fiber that the usefulness of making an uproar falls in indoor damping. This structure comprises surface course microperforated panel, sound absorption cavity, intermediate level activated carbon fiber and installation backsheet layer four layers, compares with prior art, the advantage that resonance type sound absorbing structure and porosity sound absorbent has been synthesized to it, and the frequency that absorbs sound is extended to can adsorb with the pollutant in the air of degrade, have the sound of inhaling fall make an uproar, air -purifying and smokeless characteristics such as incombustible, the indoor decoration and the environmental cleaning in the intensive places of personnel such as specially adapted place of public amusement, meeting room, market.
Description
Technical field
The utility model relates to noise reduction technology field, is specifically related to a kind of microperforated panel-activated carbon fiber compound sound-absorption structural being applicable to indoor vibration and noise reducing.
Background technology
Along with the culture life improving constantly and become increasingly abundant that the people require quality of the life, to building, the especially Art Design of large public building and the requirement of indoor noise environment are more and more higher.In order to be absorbed in the noise of the various frequencies of indoor generation, there is sound absorption properties sound-absorbing material and used as building inner decorative material.
At present, the inorfils such as known sound-absorbing material wide selection asbestos, glass cotton, rock wool are cotton, the organic fibers such as polyester are cotton, sintering metal foaming body, inorganic (glass, cement, pottery) foaming body, organic (cellular rubber, polyurethane, melamine) foaming body etc. are base material, these base materials have the fine spatial such as duct and bubble of the complexity of connection, when sound wave incident is to these base materials, due to this fine spatial air viscosity resistance, with the friction of material, formed and resonate, acoustic energy changes into heat energy, thus sound wave is absorbed.
But, these materials just have good acoustically effective in a certain frequency range, and sound absorbing capabilities outside this frequency range is poor, by increasing the thickness of base material, although some sound absorption characteristics can be improved, but what bring is then the increase of cost thereupon, the increase of thickness and weight simultaneously can lose the workability of material.
Microperforated panel utilizes the acoustic resistance of perforation itself to reach the object controlling sound absorption, it is the resonance sound-absorbing structure of a kind of low acoustic mass, high acoustic resistance, it not only inherits conventional punch plate in the higher feature of resonant frequency place acoustic absorptivity, and it also has the wide feature of sound absorption frequency.
Activated carbon fiber take organic fiber as raw material, and make after high temperature cabonization, activation, being covered with nano level hole on the surface of every root fiber, comparing traditional inorganic or organic fiber cotton, is a kind of desirable sound-absorbing material.
Utility model content
For the problems referred to above, the utility model provides a kind of and can absorb sound in wider frequency range, be easy to manufacture, conveniently install, and has decoration concurrently, purifies air and meets the compound sound-absorption structural of fire-fighting requirements.
For solving the problems of the technologies described above, the technical scheme that the utility model provides is: a kind of microperforated panel-activated carbon fiber compound sound-absorption structural, comprises surface layer microperforated panel (1), sound absorption cavity (2), intermediate layer activated carbon fiber (3) and installs backsheet layer (4) four layers.
Described surface layer micropunch flaggy is that thickness is 0.3 ~ 2mm, and micropunch aperture is 0.3 ~ 1mm, and punching rate is 20 ~ 30% through metallic plate that is anticorrosion and decoration process.
Described cavity is surrounded by microperforated panel and activated carbon fiber, and cavity thickness is 3 ~ 5mm.
Described intermediate layer activated carbon fiber is any one in viscose base, polyacrylonitrile-radical, phenolic aldehyde base, asphalt activity carbon fiber, and the thickness of activated carbon fiber is 3 ~ 5mm, and grammes per square metre is 80 ~ 200g/m
2, specific area is 600 ~ 1500m
2/ g.
Any one or a few functional particle in described activated carbon fiber be non-load or load nano titanium oxide, Nano Silver, palladium compound, copper compound, vanadium oxide, cerium oxide.
Surface layer microperforated panel and intermediate layer activated carbon fiber adopt mode that is gluing or anchoring to be fixed on backboard.
In sum, microperforated panel disclosed in the utility model-activated carbon fiber compound sound-absorption structural, it combines the advantage of resonance type sound absorption structure and porous sound-absorbing material, sound absorption frequency is wide, and can adsorb and degrade pollutants in air, there is absorbing sound and lowering noise, purify air and the feature such as fumeless and non-combustible features, be specially adapted to indoor decoration and the depollution of environment of the crowded places such as place of public amusement, meeting room, market.
Accompanying drawing explanation
Fig. 1 is microperforated panel of the present utility model-activated carbon fiber sound-absorbing composite board structural representation.
Reference numeral: 1-microperforated panel, 2-absorbs sound cavity, 3-activated carbon fiber, 4-backboard.
Specific embodiment
Embodiment 1.
Adopting anti-finger prints processing, thickness through surface to be the micropunch corrosion resistant plate of 0.5mm is surface layer, and wherein micropunch aperture is 0.3mm, and punching rate is 30%; Employing thickness is 3mm, and grammes per square metre is 100g/m
2, specific area is 800m
2the viscose based activated carbon fiber of any functional particle of non-load of/g is intermediate layer; Gluing mode is adopted to be placed between microperforated panel and activated carbon fiber with the activated carbon fiber that 4mm is thick, make it surround cavity (cavity can be required arbitrary shape) that thickness is 4mm, finally that it is overall gluing with on backboard, namely define the novel described microperforated panel-activated carbon fiber compound sound-absorption structural of this use.
Embodiment 2.
Employing thickness is the micropunch galvanized sheet of 2mm is surface layer, and wherein micropunch aperture is 1mm, and punching rate is 20%; Employing thickness is 5mm, and grammes per square metre is 200g/m
2, specific area is 600m
2the load of/g has the polyacrylonitrile based activated carbon fiber of nano titanium oxide to be intermediate layer; The mode of anchoring is adopted to be placed between microperforated panel and activated carbon fiber with the activated carbon fiber that 5mm is thick, make it surround cavity (cavity can be required arbitrary shape) that thickness is 5mm, finally by its integral fastening on backboard, namely define the novel described microperforated panel-activated carbon fiber compound sound-absorption structural of this use.
Embodiment 3.
Adopt surperficial wire drawing stamp, micropunch corrosion resistant plate that thickness is 1.5mm is surface layer, wherein micropunch aperture is 0.5mm, and punching rate is 23%; Employing thickness is 4mm, and grammes per square metre is 100g/m
2, specific area is 1300m
2the phenolic resin based activated carbon fiber of the supported palladium compound of/g is intermediate layer; The mode of anchoring is adopted to be placed between microperforated panel and activated carbon fiber with the activated carbon fiber that 3.5mm is thick, make it surround cavity (cavity can be required arbitrary shape) that thickness is 3.5mm, finally by its integral fastening on backboard, namely define the novel described microperforated panel-activated carbon fiber compound sound-absorption structural of this use.
Embodiment 4.
Adopt the micropunch iron plate that surface is antirust and decoration processes, thickness is 1mm to be surface layer, wherein micropunch aperture is 0.5mm, and punching rate is 25%; Employing thickness is 4mm, and grammes per square metre is 90g/m
2, specific area is 1500m
2the asphalt activity carbon fiber of the load vanadium oxide of/g is intermediate layer; The mode of anchoring is adopted to be placed between microperforated panel and activated carbon fiber with the activated carbon fiber that 3mm is thick, make it surround cavity (cavity can be required arbitrary shape) that thickness is 3mm, finally by its integral fastening on backboard, namely define the novel described microperforated panel-activated carbon fiber compound sound-absorption structural of this use.
Although the utility model has only set forth above embodiment, and be not used to retrain this utility model, but the embodiment adopted in order to easy understand the utility model.Technical staff under any vibration and noise reducing field, not departing under the spiritual prerequisite that the utility model discloses, to the equivalent variations that part details is made, replaces all in the scope that the utility model claim limits.
Claims (5)
1. microperforated panel-activated carbon fiber compound sound-absorption structural, it is characterized in that: be composited by surface layer microperforated panel (1), sound absorption cavity (2), intermediate layer activated carbon fiber (3) and installation backsheet layer (4) these four layers, further, this tectonic relationship of four layers is for be respectively from outside to inside: surface layer microperforated panel, sound absorption cavity, intermediate layer activated carbon fiber and installation backsheet layer.
2. a kind of microperforated panel-activated carbon fiber compound sound-absorption structural according to claim 1, it is characterized in that: described surface layer micropunch flaggy is through metallic plate that is anticorrosion and decoration process, thickness is 0.3 ~ 2mm, and micropunch aperture is 0.3 ~ 1mm, and punching rate is 20 ~ 30%.
3. a kind of microperforated panel-activated carbon fiber compound sound-absorption structural according to claim 1, is characterized in that: described cavity is surrounded by microperforated panel and activated carbon fiber, and cavity thickness is 3 ~ 5mm.
4. a kind of microperforated panel-activated carbon fiber compound sound-absorption structural according to claim 1, it is characterized in that: described intermediate layer activated carbon fiber is any one in viscose base, polyacrylonitrile-radical, phenolic aldehyde base, asphalt activity carbon fiber, the thickness of activated carbon fiber is 3 ~ 5mm, and grammes per square metre is 80 ~ 200g/m
2, specific area is 600 ~ 1500m
2/ g.
5. a kind of microperforated panel-activated carbon fiber compound sound-absorption structural according to claim 1, is characterized in that: surface layer microperforated panel and intermediate layer activated carbon fiber adopt mode that is gluing or anchoring to be fixed on backboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520801745.8U CN205075423U (en) | 2015-10-16 | 2015-10-16 | Compound sound absorbing structure of microperforated panel - activated carbon fiber |
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| CN201520801745.8U CN205075423U (en) | 2015-10-16 | 2015-10-16 | Compound sound absorbing structure of microperforated panel - activated carbon fiber |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494026A (en) * | 2016-11-23 | 2017-03-15 | 上海声望声学科技股份有限公司 | High entrant sound pavement structure of low flow resistance and preparation method thereof |
| CN109605842A (en) * | 2018-10-25 | 2019-04-12 | 中国船舶重工集团公司第七〇九研究所 | A kind of broadband multilayer compound sound-absorption structural peculiar to vessel |
| CN111663671A (en) * | 2019-03-05 | 2020-09-15 | 中国船舶重工集团公司第七一一研究所 | Sound insulation device |
| CN113954890A (en) * | 2021-11-10 | 2022-01-21 | 株洲国创轨道科技有限公司 | Noise reduction floor for railway vehicle |
-
2015
- 2015-10-16 CN CN201520801745.8U patent/CN205075423U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494026A (en) * | 2016-11-23 | 2017-03-15 | 上海声望声学科技股份有限公司 | High entrant sound pavement structure of low flow resistance and preparation method thereof |
| CN109605842A (en) * | 2018-10-25 | 2019-04-12 | 中国船舶重工集团公司第七〇九研究所 | A kind of broadband multilayer compound sound-absorption structural peculiar to vessel |
| CN109605842B (en) * | 2018-10-25 | 2022-10-21 | 中国船舶重工集团公司第七一九研究所 | Marine broadband multilayer composite sound absorption structure |
| CN111663671A (en) * | 2019-03-05 | 2020-09-15 | 中国船舶重工集团公司第七一一研究所 | Sound insulation device |
| CN113954890A (en) * | 2021-11-10 | 2022-01-21 | 株洲国创轨道科技有限公司 | Noise reduction floor for railway vehicle |
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