CN202132086U - Intermittent jet exhaust muffler - Google Patents
Intermittent jet exhaust muffler Download PDFInfo
- Publication number
- CN202132086U CN202132086U CN201120159247U CN201120159247U CN202132086U CN 202132086 U CN202132086 U CN 202132086U CN 201120159247 U CN201120159247 U CN 201120159247U CN 201120159247 U CN201120159247 U CN 201120159247U CN 202132086 U CN202132086 U CN 202132086U
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- CN
- China
- Prior art keywords
- outer cylinder
- sealing
- cylinder body
- inner bag
- courage
- 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.)
- Expired - Lifetime
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses an intermittent jet exhaust muffler, which solves a technical problem of high noise produced by conventional equipment and includes a closed inner liner (3), a closed outer liner (4) and a hollow layer (9) therebetween; an air inlet pipe (1) is disposed in a center of a stiffener (2); a plurality of exhaust straight pipes (7) are provided on the stiffener (2); plural gas jetting holes are respectively disposed in an upper part of the closed inner liner (3) and a lower part of the closed outer liner (4); the closed outer liner (4) is sleeved within an upper outer cylinder (5) and a lower outer cylinder (13); plural gas jetting holes (15) are disposed in an outer cylinder wall of the upper outer cylinder (5); and a sound absorbing material (6) is disposed between the outer cylinder wall of the upper outer cylinder (5) and the closed outer liner (4). By employment of the muffler, national city environmental noise standard value can be achieved.
Description
Technical field
The utility model relates to a kind of silencer of THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE.
Background technique
Overall process of THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE transformation absorption generally needs 40-55 second, and the emptying opening and closing time is less than 1-3 second.Existing equipment adopts emptying in the identical time, and the level of noise of generation has exceeded the regional desired level of noise of industry among the standard GB 3096-1993 greater than 110dB.A kind of silencer that reduces noise of on-the-spot urgent need.
Summary of the invention
The utility model provides a kind of exhaust emptying at intermittence silencer to solve the too big technical problem of noise that existing equipment produces.
The utility model overcomes the above problems through following scheme:
A kind of exhaust emptying at intermittence silencer; Comprise the inner bag of sealing and the outer courage of the inner bag that is socketed in sealing sealing outward; Between the outer courage of inner bag that seals and sealing, be provided with hollow layer; In the inner bag of sealing, be provided with inner bag is divided into the up and down stiffening plate in two spaces, be provided with air inlet pipeline, on stiffening plate, also be provided with a plurality of exhaust straight tubes in the central authorities of stiffening plate; The top courage wall of the inner bag of sealing is provided with a plurality of top ejection gas apertures, is provided with a plurality of bottoms ejection gas apertures in the bottom of the outer courage that seals; The outer courage of sealing is socketed in top outer cylinder body and the bottom outer cylinder body; The outer tube wall of top outer cylinder body is provided with a plurality of tops outer cylinder body ejection gas aperture; Between the outer courage of the outer tube wall of top outer cylinder body and sealing, be provided with sound-absorbing material, between the inner bag of bottom outer cylinder body and sealing, be provided with bottom hollow layer and bottom sound-absorbing material layer.
Described top outer cylinder body is fixedly connected through flange with the bottom outer cylinder body and is integral.
The utility model is pressed the baffler that said structure is made, and about 65 dB of actual measurement noise reach national regulation standard of environmental noise of urban area value.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
A kind of exhaust emptying at intermittence silencer; Comprise the inner bag 3 of sealing and the outer courage 4 of the inner bag that is socketed in sealing 3 sealing outward; Between the outer courage 4 of inner bag 3 that seals and sealing, be provided with hollow layer 9; In the inner bag 3 of sealing, be provided with inner bag 3 is divided into the up and down stiffening plate 2 in two spaces, be provided with air inlet pipeline 1, on stiffening plate 2, also be provided with a plurality of exhaust straight tubes 7 in the central authorities of stiffening plate 2; The top courage wall of the inner bag 3 of sealing is provided with a plurality of top ejection gas apertures 8, is provided with a plurality of bottoms ejection gas apertures 10 in the bottom of the outer courage 4 that seals; The outer courage 4 of sealing is socketed in top outer cylinder body 5 and the bottom outer cylinder body 13; The outer tube wall of top outer cylinder body 5 is provided with a plurality of tops outer cylinder body ejection gas aperture 15; Between the outer courage 4 of the outer tube wall of top outer cylinder body 5 and sealing, be provided with sound-absorbing material 6, between the inner bag 3 of bottom outer cylinder body 13 and sealing, be provided with bottom hollow layer 11 and bottom sound-absorbing material layer 12.Described top outer cylinder body 5 is fixedly connected through flange 14 with bottom outer cylinder body 13 and is integral.
Air inlet pipeline adopts elbow bend to change airintake direction and noise reduction, and the top, outlet side has the tubular type stiffening plate to prevent that suction tude moment air inlet from producing vibration formation noise and intubate forms the multi-cavity type sound-deadening and noise-reducing.Two-layer inner bag cylindrical shell has a plurality of micropores respectively up and down, and the principle that micropore jet is eliminated the noise is less its interference noise from the sound generating mechanism, from the low frequency to the high frequency, moves on to the insensitive frequency range of people's ear.Hollow structure is adopted at two ends up and down, prevents that moment air blast impact housing from producing noise.Loading sound-absorbing material between inside and outside cylindrical shell and be the structure characteristics of utilizing sound-absorbing porous material and be sound-absorbing material inside has the straight-through material surface of many small pores or inner many bubbles that are interconnected is arranged, and promptly has certain ventilating performance, stops air-flow to slow down mobile.Outer cylinder body top has the diffusion of a plurality of apertures formation porous reduces gas pressure, and flow velocity slows down and slackened the intensity of radiated noise.
Claims (2)
1. exhaust emptying silencer intermittently; Comprise the inner bag (3) of sealing and be socketed in the outer courage (4) of the outer sealing of the inner bag (3) of sealing; Between the outer courage (4) of inner bag (3) that seals and sealing, be provided with hollow layer (9); It is characterized in that; In the inner bag (3) of sealing, be provided with inner bag (3) is divided into the up and down stiffening plate (2) in two spaces, be provided with air inlet pipeline (1), on stiffening plate (2), also be provided with a plurality of exhaust straight tubes (7) in the central authorities of stiffening plate (2); The top courage wall of the inner bag (3) of sealing is provided with a plurality of top ejection gas apertures (8), is provided with a plurality of bottoms ejection gas apertures (10) in the bottom of the outer courage (4) that seals; The outer courage (4) of sealing is socketed in top outer cylinder body (5) and the bottom outer cylinder body (13); The outer tube wall of top outer cylinder body (5) is provided with a plurality of tops outer cylinder body ejection gas aperture (15); Between the outer courage (4) of the outer tube wall of top outer cylinder body (5) and sealing, be provided with sound-absorbing material (6), between the inner bag (3) of bottom outer cylinder body (13) and sealing, be provided with bottom hollow layer (11) and bottom sound-absorbing material layer (12).
2. a kind of exhaust emptying at intermittence silencer according to claim 1 is characterized in that described top outer cylinder body (5) is fixedly connected through flange (14) with bottom outer cylinder body (13) and is integral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120159247U CN202132086U (en) | 2011-05-18 | 2011-05-18 | Intermittent jet exhaust muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120159247U CN202132086U (en) | 2011-05-18 | 2011-05-18 | Intermittent jet exhaust muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132086U true CN202132086U (en) | 2012-02-01 |
Family
ID=45520859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120159247U Expired - Lifetime CN202132086U (en) | 2011-05-18 | 2011-05-18 | Intermittent jet exhaust muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132086U (en) |
-
2011
- 2011-05-18 CN CN201120159247U patent/CN202132086U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |