CN201179406Y - Air discharge emptying silencer muffler - Google Patents
Air discharge emptying silencer muffler Download PDFInfo
- Publication number
- CN201179406Y CN201179406Y CNU2008200346086U CN200820034608U CN201179406Y CN 201179406 Y CN201179406 Y CN 201179406Y CN U2008200346086 U CNU2008200346086 U CN U2008200346086U CN 200820034608 U CN200820034608 U CN 200820034608U CN 201179406 Y CN201179406 Y CN 201179406Y
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- urceolus
- silencing apparatus
- short circuit
- silencer
- silencer according
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Abstract
The utility model relates to an air discharge and emptying silencer which comprises a secondary silencing device and a primary silencing device which are orderly connected in series form the top to the bottom. The primary silencing device comprises a first outer barrel, at least one layer of throttling depressurizing porous plate arranged in the first outer barrel and a sound absorbing material stuck on the inner wall of the first outer barrel; the lower part of the throttling depressurizing porous plate is communicated with an air exhaustion pipe; the secondary silencing device comprises a second outer barrel having an inside sealed chamber filled with a porous sound absorbing material. The primary silencing device also comprises at least one small hole injection pipe arranged in the first outer barrel; the small hole injection pipe is sleeved outside the throttling depressurizing porous plate. The silencer achieves a good silencing effect, and the noise reduction amount can reach more than 40db (A); besides, the silencer also has the advantages of a small-hole silencer and a pure resistance silencer. The silencer has simple structure and is widely applicable for devices needing to discharge and empty the high-pressure air.
Description
Technical field
The utility model relates to a kind of silencer, particularly a kind of silencer when being used for pressure-swing absorption apparatus exhaust emptying.
Background technology
Adsorption tower in the pressure-swing absorption apparatus in use will carry out frequent switching regeneration, so need intermittently carry out exhaust emptying, because the gas purging amount is big, pressure is high, the therefore noise grade height of generation has a strong impact on operating personnel's physical and mental health.Silencer commonly used mainly contains two kinds in this type of exhaust apparatus at present, and a kind of is pure dissipative muffler, and another kind is a micropole diffusor.The noise elimination effect of pure dissipative muffler is limited, and resistance is big, and behind the long-play, deadener wherein can be broken up or rotten rotting, and influences the noise elimination effect.The micropole diffusor effect is better, and behind the long-play, aperture easily blocks, though gas sound level through small holes the time reduces in addition, but when outlet is discharged, the airflow strikes outlet edge will produce regenerated noise, and sound level increases once more.These two kinds of silencers also have a common drawback, and promptly silencer is welded as a whole, and change sound-absorbing material wherein or cumbersome when safeguarding.
Summary of the invention
The purpose of this utility model is to provide a kind of exhaust emptying silencer of eliminating the noise effective.
Technical solution adopted in the utility model is:
A kind of exhaust emptying silencer, comprise the secondary silencing apparatus and the one-level silencing apparatus of connecting successively up and down, described one-level silencing apparatus comprises first urceolus, be arranged on the expenditure and pressure of one deck at least orifice plate in this first urceolus, sound-absorbing material on described first outer tube inner wall is sticked, the bottom of described expenditure and pressure orifice plate is connected with blast pipe, and described secondary silencing apparatus comprises second urceolus that inside is provided with the material that can absorb sound.Described one-level silencing apparatus also comprises at least one micropore jet pipe that is arranged in described first urceolus, this micropore jet pipe box is located at described expenditure and pressure orifice plate outside, described micropore jet pipe is for offering the pipe fitting of a plurality of apertures on tube wall, each described hole diameter is 1～3 millimeter, distance between the adjacent described aperture is 8～10 times of average diameter of this adjacent described aperture, and the perforate gross area of all described apertures is 1.5～2 times of cross-sectional area of described blast pipe.
The material that can absorb sound that is arranged in described second urceolus is: be filled in the sound-absorbing porous material in described second urceolus densely.Between described one-level silencing apparatus and described secondary silencing apparatus, be provided with the sieve plate of the inner space that is used to separate described first urceolus and second urceolus.Pass through the mutually dismountable connection of threaded connector between described one-level silencing apparatus, described sieve plate, the described secondary silencing apparatus.Described secondary silencing apparatus also comprises the top board that covers the described second urceolus top, passes inside and the extraneous short circuit that be connected of described top board with described second urceolus.Be coated with the sieve plate that described short circuit and described second urceolus are separated at the outlet at bottom of described short circuit.The thickness of described sieve plate is 4～10 millimeters, and the sieve diameter of this sieve plate is 5～10 millimeters, and punching rate is 30～70%.Be installed with the emptying flange at the top of described short circuit.Between described emptying flange and the described short circuit, be welding between described short circuit and the described top board.The wall thickness of described first urceolus and described second urceolus is 4～10 millimeters.
The exhaust emptying silencer of implementing according to the utility model has following advantage:
1, noise elimination is effective, and noise reduction reaches more than the 40db (A).
2, adopt compound sandwich construction, possess the advantage of micropole diffusor and pure dissipative muffler simultaneously.
3, simple in structure, therefore be widely used on the device that various need carry out gases at high pressure exhaust emptying.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Wherein: 1, secondary silencing apparatus; 2, expenditure and pressure orifice plate; 3, micropore jet pipe; 4, sound-absorbing material; 5, one-level silencing apparatus; 6, sound-absorbing porous material; 7, sieve plate; 8, short circuit; 9, emptying flange; 10, first urceolus; 11, second urceolus; 12, top board; 13, threaded connector; 14, blast pipe.
The specific embodiment
The utility model is described in embodiment below in conjunction with accompanying drawing:
As shown in Figure 1, the exhaust emptying silencer of implementing according to the utility model comprises up and down the secondary silencing apparatus 1 and the one-level silencing apparatus 5 of series connection successively, this one-level silencing apparatus 5 is made up of diameter identical first urceolus 10 and second urceolus 11 respectively with secondary silencing apparatus 1, and this first urceolus 10 and second urceolus 11 are separated by sieve plate 7.
At least one deck expenditure and pressure orifice plate 2 is set in first urceolus 10, and the number of plies of expenditure and pressure orifice plate 2 and hole count are by the flow decision of gas.The lower end of this expenditure and pressure orifice plate 2 is connected with blast pipe 14.
Be arranged with micropore jet pipe 3 in the outside of expenditure and pressure orifice plate 2.The gross area of each aperture of being offered on the micropore jet pipe 3 should be 1.5～2 times of leaving area of blast pipe 14, and the little number of perforations that needs are offered should can be calculated according to this numerical value in the aperture of aperture between 1～3 millimeter.Pitch-row between each aperture is necessary for 8～10 times of hole diameter, and then can calculate the pipe lateral area of micropore jet pipe 3.
On the inwall of first urceolus 11, be pasted with one deck sound-absorbing material 4, in second urceolus 11, be filled with sound-absorbing porous material 6 densely.
Thickness every the sieve plate 7 between first urceolus 10 and second urceolus 11, second urceolus 11 and short circuit 8 is 5 millimeters, and sieve diameter is 7 millimeters, and punching rate is 40%.The effect of sieve plate 7 is to prevent that the sound-absorbing porous material that is filled in second urceolus 11 from overflowing with air-flow.
By threaded connector 13 mutually dismountable connections, be convenient to change sound-absorbing material 4 and sound-absorbing porous material 6, the disassemble and assemble work during convenient for maintaining between first urceolus 10, sieve plate 7, second urceolus 11.Between emptying flange 9 and the short circuit 8, be welding between short circuit 8 and the top board 12.
The wall thickness of first urceolus 10 and second urceolus 11 is 10 millimeters.
As mentioned above, we are illustrated according to aim of the present utility model fully, but the utility model is not limited to the foregoing description and implementation method.The practitioner of correlative technology field can carry out different variations and enforcement in the scope of technological thought permission of the present invention.
Claims (10)
1, a kind of exhaust emptying silencer, comprise the secondary silencing apparatus (1) and the one-level silencing apparatus (5) of connecting successively up and down, described one-level silencing apparatus (5) comprises first urceolus (10), be arranged on the expenditure and pressure of one deck at least orifice plate (2) in this first urceolus (10), sound-absorbing material (4) on described first urceolus (10) inwall is sticked, the bottom of described expenditure and pressure orifice plate (2) is connected with blast pipe (14), described secondary silencing apparatus (1) comprises second urceolus (11) that inside is provided with the material that can absorb sound, and it is characterized in that:
Described one-level silencing apparatus (5) also comprises at least one micropore jet pipe (3) that is arranged in described first urceolus (10), and this micropore jet pipe (3) is set in described expenditure and pressure orifice plate (2) outside,
Described micropore jet pipe (3) is for offering the pipe fitting of a plurality of apertures on tube wall, each described hole diameter is 1～3 millimeter, distance between the adjacent described aperture is 8～10 times of average diameter of this adjacent described aperture, and the perforate gross area of all described apertures is 1.5～2 times of cross-sectional area of described blast pipe (14).
2, exhaust emptying silencer according to claim 1 is characterized in that: the material that can absorb sound that is arranged in described second urceolus (11) is: be filled in the sound-absorbing porous material (6) in described second urceolus (11) densely.
3, exhaust emptying silencer according to claim 1 is characterized in that: be provided with the sieve plate (7) that is used to separate described first urceolus (10) and the inner space of second urceolus (11) between described one-level silencing apparatus (5) and described secondary silencing apparatus (1).
4, exhaust emptying silencer according to claim 3 is characterized in that: pass through the mutually dismountable connection of threaded connector (13) between described one-level silencing apparatus (5), described sieve plate (7), the described secondary silencing apparatus (1).
5, exhaust emptying silencer according to claim 1 is characterized in that: described secondary silencing apparatus (1) also comprises the top board (12) that covers described second urceolus (11) top, passes inside and the extraneous short circuit (8) that be connected of described top board (12) with described second urceolus (11).
6, exhaust emptying silencer according to claim 5 is characterized in that: the outlet at bottom at described short circuit (8) is coated with the sieve plate (7) that described short circuit (8) and described second urceolus (11) are separated.
7, according to claim 3 or 6 described exhaust emptying silencers, it is characterized in that: the thickness of described sieve plate (7) is 4～10 millimeters, and the sieve diameter of this sieve plate (7) is 5～10 millimeters, and punching rate is 30～70%.
8, exhaust emptying silencer according to claim 5 is characterized in that: be installed with emptying flange (9) at the top of described short circuit (8).
9, exhaust emptying silencer according to claim 8 is characterized in that: between described emptying flange (9) and the described short circuit (8), be welding between described short circuit (8) and the described top board (12).
10, exhaust emptying silencer according to claim 1 is characterized in that: the wall thickness of described first urceolus (10) and described second urceolus (11) is 4～10 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200346086U CN201179406Y (en) | 2008-04-15 | 2008-04-15 | Air discharge emptying silencer muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200346086U CN201179406Y (en) | 2008-04-15 | 2008-04-15 | Air discharge emptying silencer muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201179406Y true CN201179406Y (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200346086U Expired - Fee Related CN201179406Y (en) | 2008-04-15 | 2008-04-15 | Air discharge emptying silencer muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201179406Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071997A (en) * | 2011-01-29 | 2011-05-25 | 江苏东泽环保科技有限公司 | Diffusion buffer vent muffler |
| 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 |
| CN108561289A (en) * | 2018-03-06 | 2018-09-21 | 安徽朝祯环保科技有限公司 | A kind of exhaust silencer |
| CN110260157A (en) * | 2019-06-17 | 2019-09-20 | 江苏甬金金属科技有限公司 | A kind of air accumulator silencer |
| CN113088860A (en) * | 2021-03-23 | 2021-07-09 | 西北工业大学 | Explosion spraying auxiliary device |
| CN113738706A (en) * | 2021-09-18 | 2021-12-03 | 南京磁谷科技股份有限公司 | Anti-surge muffler device for vacuum pump system |
-
2008
- 2008-04-15 CN CNU2008200346086U patent/CN201179406Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071997A (en) * | 2011-01-29 | 2011-05-25 | 江苏东泽环保科技有限公司 | Diffusion buffer vent muffler |
| 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 |
| CN108561289A (en) * | 2018-03-06 | 2018-09-21 | 安徽朝祯环保科技有限公司 | A kind of exhaust silencer |
| CN110260157A (en) * | 2019-06-17 | 2019-09-20 | 江苏甬金金属科技有限公司 | A kind of air accumulator silencer |
| CN113088860A (en) * | 2021-03-23 | 2021-07-09 | 西北工业大学 | Explosion spraying auxiliary device |
| CN113738706A (en) * | 2021-09-18 | 2021-12-03 | 南京磁谷科技股份有限公司 | Anti-surge muffler device for vacuum pump system |
| CN113738706B (en) * | 2021-09-18 | 2024-02-13 | 南京磁谷科技股份有限公司 | Anti-surge muffler device for vacuum pump system |
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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: 20090114 Termination date: 20130415 |