CN201650411U - Compound diffusion-type silencer - Google Patents
Compound diffusion-type silencer Download PDFInfo
- Publication number
- CN201650411U CN201650411U CN2010201469521U CN201020146952U CN201650411U CN 201650411 U CN201650411 U CN 201650411U CN 2010201469521 U CN2010201469521 U CN 2010201469521U CN 201020146952 U CN201020146952 U CN 201020146952U CN 201650411 U CN201650411 U CN 201650411U
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- China
- Prior art keywords
- sleeve pipe
- sleeve
- mesosphere
- outer sleeve
- inner sleeve
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Abstract
The utility model discloses a compound diffusion-type silencer, which comprises an outer sleeve pipe, an interlayer sleeve pipe and an inner sleeve pipe which are sleeved from outside to inside and are coaxial, wherein the top of the outer sleeve pipe is provided with an air outlet connecting pipe; the pipe walls of the interlayer sleeve pipe and the inner sleeve pipe are uniformly provided with a plurality of small holes which are annularly and uniformly distributed; and the inner wall of the outer sleeve pipe is provided with a layer of isochoric acoustic wool. In the utility model, a plurality of decompressing chambers formed by the coaxial sleeving of different quantity of the sleeve pipes can make the exhaust volume gradually swell to reduce noise, at the same time, through the surface abrupt resistant noise reduction structure formed by the small holes on the sleeve pipe, together with the porous sound absorption resistant material of the acoustic wool and the like, the goal of better control of broadband exhaust noise is achieved.
Description
Technical field
The utility model relates to a kind of air separation plant parts, refers more particularly to a kind of compound spreading type baffler.
Background technique
At present at making nitrogen by pressure swing adsorption, the baffler that use in air separation plant fields such as system oxygen and Compressed air drying generally all adopts the aperture baffler, make simple, with low cost, but erasure effect is not good, in order to reach better erasure effect, people have done certain improvement to the structure of baffler, as China Patent No. is CN200810021382.0, name is called a kind of patent of invention of baffler, comprise suction tude housing and end socket, have the inlet hole of a plurality of small pore-like on the described suction tude, described suction tude top seal, it is characterized in that in the described housing near the end socket place be provided with one fixedly fishplate bar housing is divided into housing ante-chamber and housing back cavity, have a plurality of looping pits on the described housing back cavity, increased fixed dam in the baffler, make urceolus be divided into chamber, front and back two partly, make erasure effect obtain increase, the increase of pipe simultaneously, make air-flow produce backflow, the effect that meets the aperture noise reduction, but because noise reduction only is to utilize the sudden change of pipeline and side to connect resistance noise reductions such as resonant cavity, still there is certain deficiency in control to wideband noise, can't reach preferable noise reduction sound-absorbing effect.
The model utility content
The utility model solves mainly that common baffler has only single resistance decrease of noise functions and the not good technical problem of broad-band noise control when causing exhaust; Provide a kind of with resistance noise reduction flat textural associations such as resistance denoising structures such as pipeline interface sudden change and sound-absorbing porous materials, reach the compound spreading type baffler of better control broad-band noise.
In order to solve the technical problem of above-mentioned existence, the utility model mainly is to adopt following technical proposals:
The utility model comprises from outside to inside the outer sleeve of suit successively, mesosphere sleeve pipe and inner sleeve, described outer sleeve, the mesosphere sleeve pipe, inner sleeve is all coaxial, the top of outer sleeve is provided with outgoing gas connection tube, described outer sleeve, the top port of mesosphere sleeve pipe and inner sleeve is provided with top closure respectively, outer sleeve, the bottom port of mesosphere sleeve pipe is located on the same bottom cover and with bottom cover and is connected, one end of described inner sleeve protrudes described bottom cover, the central authorities of described outer sleeve top closure are provided with exhaust port, described exhaust port and described outgoing gas connection tube match, the central authorities of described bottom cover are provided with inlet hole, described inlet hole is less than described exhaust port, inlet hole and inner sleeve match, be equipped with the equally distributed aperture of a plurality of annulars on the tube wall of described mesosphere sleeve pipe and inner sleeve, the interface that utilizes pipeline to suddenly change makes the sound wave along pipe transmmision, phenomenons such as generation reflection interference at the interface in sudden change reach noise elimination, the purpose of flat.
As preferably, described mesosphere sleeve pipe is made up of 1～3 intermediate casing, and described intermediate casing is suit and coaxial successively, as requested, can design the baffler of the different numbers of plies, has improved the Applicable scope of baffler.
As preferably, the outer side surface of the inner side surface of described outer sleeve, end face and mesosphere sleeve pipe, the space of end face form outer relief chamber, the inner side surface of the outer side surface of described inner sleeve, end face and mesosphere sleeve pipe, the gap of end face form the internal layer relief chamber, gap between the described adjacent intermediate casing forms corresponding mesosphere relief chamber, require the corresponding relief chamber volume of design according to different vacuum, noise reduction, exhaust volume is progressively expanded and sound is progressively decayed reach the purpose of noise reduction.
As preferably, the side ports that described inner sleeve stretches out bottom cover is provided with flange, and the port of outgoing gas connection tube is provided with flange, makes things convenient for the connection of inlet, outlet pipeline.
As preferably, the inwall of described outer sleeve is provided with the acoustical cotton of one deck uniform thickness, when sound wave is propagated at the porosity sound absorbing material, is rubbed and viscous resistance, makes acoustic energy be converted into heat energy and dissipates.
The beneficial effects of the utility model are: some relief chambers that the sleeve pipe coaxial package by varying number forms progressively expand and noise reduction exhaust volume, simultaneously, form the resistance denoising structure such as sudden change at interface by the aperture on the sleeve pipe and, reach the purpose of better control wide band exhaust noise in conjunction with the resistive material of porous sound absorptions such as acoustical cotton.
Description of drawings
Fig. 1 is a kind of cross-sectional view of the present utility model.
1. outer sleeves among the figure, 2. mesosphere sleeve pipe, 3. inner sleeve, 4. outgoing gas connection tube, 5. top closure, 6. bottom cover, 7. outer relief chamber, 8. internal layer relief chamber, 9. acoustical cotton.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the compound spreading type baffler of present embodiment, as shown in Figure 1, comprise from outside to inside suit and coaxial outer sleeve 1 successively, intermediate casing 2 and inner sleeve 3, the top of outer sleeve is provided with outgoing gas connection tube 4, the port of outgoing gas connection tube is welded with flange, outer sleeve, the top port of intermediate casing and inner sleeve is welded with top closure 5 respectively, outer sleeve, the bottom port of intermediate casing is arranged on the same bottom cover 6 and with bottom cover and welds, the top closure central authorities of outer sleeve have exhaust port, outgoing gas connection tube and exhaust port kissing merge and the top closure welding, the central authorities of bottom cover have inlet hole, inlet hole is less than exhaust port, inlet hole and inner sleeve match, one end of inner sleeve protrudes bottom cover by inlet hole and welds with bottom cover, the inner sleeve port that protrudes side is welded with flange, the inner side surface of the outer side surface of inner sleeve and end face and intermediate casing and the space of end face form internal layer relief chamber 8, the outer side surface of intermediate casing, the inner side surface of end face and outer sleeve, the gap of end face forms outer relief chamber 7, have the equally distributed aperture of a plurality of annulars on the wall of intermediate casing, inner sleeve is arranged on the interior wall partly of intermediate casing and has the equally distributed aperture of a plurality of annulars, is fitted with the acoustical cotton 9 of one deck uniform thickness on the inwall of outer sleeve.During work, pressurized air flows into inner sleeve by suction tude, expand through entering the internal layer relief chamber behind the decompression of the aperture on the inner sleeve wall noise reduction, the aperture that passes again on the intermediate casing wall enters outer relief chamber puffing once more, simultaneously, the acoustical cotton that is fitted in outer sleeve inner wall also absorbs the pneumatic noise energy of a part, and the pressurized air after the decay is discharged from outgoing gas connection tube by relief opening, has finished compressed-air actuated sound-deadening and noise-reducing evacuation procedure.
Claims (5)
1. compound spreading type baffler, it is characterized in that: comprise from outside to inside the outer sleeve of suit (1) successively, mesosphere sleeve pipe (2) and inner sleeve (3), described outer sleeve, the mesosphere sleeve pipe, inner sleeve is all coaxial, the top of outer sleeve is provided with outgoing gas connection tube (4), described outer sleeve, the top port of mesosphere sleeve pipe and inner sleeve is provided with top closure (5) respectively, outer sleeve, the same bottom cover (6) that all is located at the bottom port of mesosphere sleeve pipe goes up and is connected with bottom cover, one end of described inner sleeve protrudes described bottom cover, the central authorities of described outer sleeve top closure are provided with exhaust port, described exhaust port and described outgoing gas connection tube match, the central authorities of described bottom cover are provided with inlet hole, described inlet hole is less than described exhaust port, inlet hole and inner sleeve match, and are equipped with the equally distributed aperture of a plurality of annulars on the tube wall of described mesosphere sleeve pipe and inner sleeve.
2. compound spreading type baffler according to claim 1 is characterized in that: described mesosphere sleeve pipe (2) is made up of 1～3 intermediate casing, and described intermediate casing is suit and coaxial successively.
3. compound spreading type baffler according to claim 1, it is characterized in that: the outer side surface of the inner side surface of described outer sleeve (1), end face and mesosphere sleeve pipe (2), the space of end face form outer relief chamber (7), the inner side surface of the outer side surface of described inner sleeve (3), end face and mesosphere sleeve pipe (2), the gap of end face form internal layer relief chamber (8), and the space between the adjacent intermediate casing forms corresponding mesosphere relief chamber.
4. compound spreading type baffler according to claim 1 is characterized in that: the side ports that described inner sleeve (3) stretches out bottom cover (6) is provided with flange, and the port of described outgoing gas connection tube (4) is provided with flange.
5. according to claim 1 or 3 described compound spreading type bafflers, it is characterized in that: the inwall of described outer sleeve (1) is provided with the acoustical cotton (9) of one deck uniform thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201469521U CN201650411U (en) | 2010-04-01 | 2010-04-01 | Compound diffusion-type silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201469521U CN201650411U (en) | 2010-04-01 | 2010-04-01 | Compound diffusion-type silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650411U true CN201650411U (en) | 2010-11-24 |
Family
ID=43115644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201469521U Expired - Fee Related CN201650411U (en) | 2010-04-01 | 2010-04-01 | Compound diffusion-type silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650411U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359407A (en) * | 2011-10-29 | 2012-02-22 | 无锡开普机械有限公司 | Multi-cavity labyrinth silencer |
| CN102699785A (en) * | 2012-06-15 | 2012-10-03 | 葛明建 | Silencer device |
| CN102937046A (en) * | 2012-11-27 | 2013-02-20 | 广西柳工机械股份有限公司 | Engineering machinery air exhaust tail pipe |
| CN104324582A (en) * | 2014-11-14 | 2015-02-04 | 北京中成航宇空分设备有限公司 | Pressure swing adsorption equipment muffler and pressure swing adsorption equipment |
| CN105370630A (en) * | 2015-12-14 | 2016-03-02 | 广东溢达纺织有限公司 | Silencer |
| CN109000079A (en) * | 2018-09-25 | 2018-12-14 | 浙江得亿制氧科技有限公司 | A kind of low noise oxygenerator exhaust structure |
| CN111729613A (en) * | 2020-07-10 | 2020-10-02 | 蚌埠朝阳玻璃机械有限公司 | Silencing device for glass still kettle |
| CN113950399A (en) * | 2019-04-08 | 2022-01-18 | 豪迈股份公司 | Device and method for coating workpieces |
-
2010
- 2010-04-01 CN CN2010201469521U patent/CN201650411U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359407A (en) * | 2011-10-29 | 2012-02-22 | 无锡开普机械有限公司 | Multi-cavity labyrinth silencer |
| CN102699785A (en) * | 2012-06-15 | 2012-10-03 | 葛明建 | Silencer device |
| CN102937046A (en) * | 2012-11-27 | 2013-02-20 | 广西柳工机械股份有限公司 | Engineering machinery air exhaust tail pipe |
| CN104324582A (en) * | 2014-11-14 | 2015-02-04 | 北京中成航宇空分设备有限公司 | Pressure swing adsorption equipment muffler and pressure swing adsorption equipment |
| CN104324582B (en) * | 2014-11-14 | 2018-02-27 | 北京中成航宇空分设备有限公司 | Variable-pressure adsorption equipment silencer, variable-pressure adsorption equipment |
| 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 |
| CN109000079A (en) * | 2018-09-25 | 2018-12-14 | 浙江得亿制氧科技有限公司 | A kind of low noise oxygenerator exhaust structure |
| CN113950399A (en) * | 2019-04-08 | 2022-01-18 | 豪迈股份公司 | Device and method for coating workpieces |
| CN111729613A (en) * | 2020-07-10 | 2020-10-02 | 蚌埠朝阳玻璃机械有限公司 | Silencing device for glass still kettle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20180401 |