CN201428494Y - Double-layer porous diffusion muffler - Google Patents
Double-layer porous diffusion muffler Download PDFInfo
- Publication number
- CN201428494Y CN201428494Y CN2009200970905U CN200920097090U CN201428494Y CN 201428494 Y CN201428494 Y CN 201428494Y CN 2009200970905 U CN2009200970905 U CN 2009200970905U CN 200920097090 U CN200920097090 U CN 200920097090U CN 201428494 Y CN201428494 Y CN 201428494Y
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- layer
- double
- layer porous
- muffler
- fibre tube
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Abstract
A double-layer porous diffusion muffler is characterized in that a top end cover and a collet cover are respectively mounted on a casing; two groups of multiporous fiber pipes on the inner layer and on the outer layer are mounted in the casing; a middle hollow airflow channel is formed in the casing and an airflow channel is formed between inner-layer multiporous fiber pipes and outer-layer multiporous fiber pipes. The utility model has the following advantages and beneficial effects that firstly, the structure is compact, the porosity ratio is up to 75 percent, and the supporting strength canachieve 1MPa; when pore channels are indeformable under the impact of discharge pressure, are waterproof and oilproof, are not polluted and plugged and does not affect air discharge during operation;and the diffusion muffler also can be cleaned and replaced after being demounted; secondly, the diffusion muffler has good shockproof and noisedamping effects and has excellent mechanical property and decay resistance; and when the air discharged is exhausted, strong broad-band jet flow noise is generated at an exhaust port, so that the efficient filtering muffler is the most ideal product to reduce air noise; and thirdly, the diffusion muffler can be widely applied to devices such as blowers, piston compressors, air compressors and the like.
Description
Technical field:
The utility model belongs to middle noise reduction equipment, particularly a kind of double-layer porous diffusion baffler that is used to reduce pressurized air emptying noise.
Background technique:
Use the Motor Vehicle of gasoline class in the power production process, all can produce noise and waste gas at present, noise and waste gas then utilize outlet pipe to be discharged, in the outlet pipe baffler can be housed, noise first major part that diminished before discharging outlet pipe fully is discharged from again, to reduce pollution to environment.And the baffler micropore jet baffler that uses now, its aperture is little, and hole count is more, must impurity if contain in the air-flow of emptying like this, and these apertures just are easy to obstruction, thereby influence the further use of device.And the baffler of this structure is not resolved the slow diffusion of air-flow, so its sound-damping qualities is less, erasure effect is undesirable.
Summary of the invention:
The purpose of this utility model just is to provide a kind of double-layer porous diffusion baffler, and this baffler porosity ratio height, penetrating ability is good, the process materials structure is tight, and higher support force is arranged.
The technical solution of the utility model is: a kind of double-layer porous diffusion baffler, comprise housing, and it is characterized in that: the top lid and bottom are housed respectively on the housing drag lid, two groups of porous fibre tube of inside and outside layer are housed in the housing; The air-flow path that forms between middle airflow path in the middle part of forming in the housing and the inside and outside layer porous fibre tube.
Above-mentioned porous fibre tube is the hot sticky coiling tubular structure of fiber.
Above-mentioned top lid and bottom are dragged between the lid and are connected by fastening pull rod.
Distance between two groups of porous fibre tube of above-mentioned inside and outside layer is 15mm.
Above-mentioned outside is equipped with metal perforated plate.
The aperture of above-mentioned internal layer porous fibre tube is between 80～100 μ m.
The aperture of above-mentioned outer porous fibre tube is 50 μ m.
The utlity model has following advantage and good effect:
1, because silencer element adopts the PES lamination coating to make nonwovens through combing, adds the hot sticky tubulose silencer element that is wound into, because pipe member is an intersection heat fusion joint crystalline substance between the fiber, pressure is reeled, structure is tight, and porosity ratio is up to 75%, and support strength can reach 1Mpa.The duct is indeformable when pressure exhaust impacts, and is water-fast during operation, oily, not dirty stifled, do not influence exhaust; Can unload down and clean and change.
2, because two groups of porous fibre tube of inside and outside layer are housed in the housing, so this baffler has double-layer porous exhaust bump, buffering diffusion characteristics.Internal layer discharging air inlet contact opening is established the fibre pipe of aperture 80～100 μ m, though diameter of inner pipe is little, does not influence the exhaust flux, makes the gas emptying enter the diffusion of porous material sonic bang and weakens.The be separated by distance of 15mm of outer layer fiber pipe and inner fiber pipe, porous material is set 50 μ m, and the air-flow buffering enters two layers of apertures diffusion at interval, makes gas hit further diffusion of sound, makes the noise decibel drop to 32 decibels of higher stages.
3, can be widely used in fields such as blower, piston compressor, air compressor, no heat, low-grade fever, adsorption dry gas emptying noise reduction, factory's exhausting air, automation are pneumatic, the air-filtering of vibratory equipment suction port.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
As shown in the figure: a kind of double-layer porous diffusion baffler, the top end cover 8 and the end be housed respectively on the cylindrical housings 9 drag and cover 3, collet covers and has inlet and outlet hole 10, and the top lid and bottom are dragged between the lid and are connected by fastening pull rod 5.Two groups of porous fibre tube 4,6 of inside and outside layer are housed in the housing, and the distance between two groups of porous fibre tube of inside and outside layer is 15mm, and the aperture of internal layer porous fibre tube is between 80～100 μ m, and the aperture of outer porous fibre tube is 50 μ m.The air-flow path 12 that forms between middle airflow path 11 in the middle part of forming in the housing and the inside and outside layer porous fibre tube.
Above-mentioned porous fibre tube is the hot sticky coiling tubular structure of fiber, and outside is equipped with metal perforated plate 7.
Working principle of the present utility model is: the design of this baffler is gone up the utilization micropore jet, is filtered sound-absorbing, porous diffusion principle, sets double-layer porous exhaust bump, buffering diffusion characteristics.Internal layer discharging air inlet contact opening is established the fibre pipe of aperture 80～100 μ m, though diameter of inner pipe is little, does not influence the exhaust flux, makes the gas emptying enter the diffusion of porous material sonic bang and weakens.The be separated by distance of 15mm of outer layer fiber pipe and inner fiber pipe, porous material is set 50 μ m, and the air-flow buffering enters two layers of apertures diffusion at interval, makes gas hit further diffusion of sound, makes the noise decibel drop to 32 decibels of higher stages.
This product element porosity ratio height, penetrating ability is good, the process materials structure is tight, and higher support strength is arranged, and is best quieter material, and double medium filtration noise reduction design science skill belongs to domestic initiation.
Claims (7)
1, a kind of double-layer porous diffusion baffler comprises housing, it is characterized in that: top end cover and collet lid is housed respectively on the housing, two groups of porous fibre tube of inside and outside layer are housed in the housing; The air-flow path that forms between middle airflow path in the middle part of forming in the housing and the inside and outside layer porous fibre tube.
2, double-layer porous diffusion baffler according to claim 1 is characterized in that: above-mentioned porous fibre tube is the hot sticky coiling tubular structure of fiber.
3, double-layer porous diffusion baffler according to claim 1 is characterized in that: connect by fastening pull rod between above-mentioned top end cover and the collet lid.
4, double-layer porous diffusion baffler according to claim 1 is characterized in that: the distance between two groups of porous fibre tube of above-mentioned inside and outside layer is 15mm.
5, double-layer porous diffusion baffler according to claim 1, it is characterized in that: above-mentioned outside is equipped with metal perforated plate.
6, double-layer porous diffusion baffler according to claim 1 and 2, it is characterized in that: the aperture of above-mentioned internal layer porous fibre tube is between 80～100 μ m.
7, double-layer porous diffusion baffler according to claim 1 and 2 is characterized in that: the aperture of above-mentioned outer porous fibre tube is 50 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200970905U CN201428494Y (en) | 2009-06-11 | 2009-06-11 | Double-layer porous diffusion muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200970905U CN201428494Y (en) | 2009-06-11 | 2009-06-11 | Double-layer porous diffusion muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201428494Y true CN201428494Y (en) | 2010-03-24 |
Family
ID=42032229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200970905U Expired - Fee Related CN201428494Y (en) | 2009-06-11 | 2009-06-11 | Double-layer porous diffusion muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201428494Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330657A (en) * | 2011-05-27 | 2012-01-25 | 杭州益健食品有限公司德清分公司 | Air blower silencing device on lotus root starch drying machine |
| CN104358602A (en) * | 2014-11-03 | 2015-02-18 | 沈阳化工大学 | Noise control method of wideband composite sound absorption structure-based steam turbine generator unit |
| CN105370630A (en) * | 2015-12-14 | 2016-03-02 | 广东溢达纺织有限公司 | Silencer |
| CN108374775A (en) * | 2018-02-08 | 2018-08-07 | 合肥富厚机电制造有限公司 | A kind of compressor silencer |
-
2009
- 2009-06-11 CN CN2009200970905U patent/CN201428494Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330657A (en) * | 2011-05-27 | 2012-01-25 | 杭州益健食品有限公司德清分公司 | Air blower silencing device on lotus root starch drying machine |
| CN104358602A (en) * | 2014-11-03 | 2015-02-18 | 沈阳化工大学 | Noise control method of wideband composite sound absorption structure-based steam turbine generator unit |
| CN105370630A (en) * | 2015-12-14 | 2016-03-02 | 广东溢达纺织有限公司 | Silencer |
| CN105370630B (en) * | 2015-12-14 | 2017-11-17 | 广东溢达纺织有限公司 | Silencer |
| CN108374775A (en) * | 2018-02-08 | 2018-08-07 | 合肥富厚机电制造有限公司 | A kind of compressor silencer |
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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: 20100324 Termination date: 20120611 |