CN206921469U - A kind of collapsible resonance muffling composite device - Google Patents
A kind of collapsible resonance muffling composite device Download PDFInfo
- Publication number
- CN206921469U CN206921469U CN201720915410.8U CN201720915410U CN206921469U CN 206921469 U CN206921469 U CN 206921469U CN 201720915410 U CN201720915410 U CN 201720915410U CN 206921469 U CN206921469 U CN 206921469U
- Authority
- CN
- China
- Prior art keywords
- resonant chamber
- level resonant
- resonance
- conduction pipe
- level
- 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 - Fee Related
Links
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a kind of set composite of collapsible resonance noise reduction, the set composite includes noise spectrum test system (101) and collapsible resistive silencing means (102) two parts；The noise spectrum test system (101) includes noise source (50), sound level meter (51), high-speed data acquisition card NI (52), computer (53), the time-domain diagram (54) of noise, the frequency domain figure (55) of noise；The resistive silencing means of stacked (102) includes：First bi-level resonant chamber (2), the second bi-level resonant chamber (3), the 3rd bi-level resonant chamber (4), the 4th bi-level resonant chamber (5), the first folding channel (19), the second folding channel (20) etc..The utility model carries out resistance sound-absorbing using four resonator chambers, and resistive sound-absorbing is carried out using folding channel and porous sound absorbing material, so as to reach the effect eliminated the noise.
Description
Technical field
The present invention relates to the silencing means of noise, especially suitable for a kind of collapsible resonance muffling composite device.
Background technology
Muffler is to allow air-flow by the way that but and can prevents or reduced a kind of device of sound transmission, is to eliminate air to move
The important measures of power noise.Muffler can stop the propagation of sound wave, it is allowed to which air-flow is by being the effective work for controlling noise
Tool.Muffler species is a lot, but studies carefully its noise elimination mechanism, it can be divided into six kinds of main types again, i.e. resistive muffler, anti-
Property muffler, impedance complex formula muffler, microperforated panel muffler, aperture muffler and active muffler.
Existing muffler, use impedance composite noise-cancelling theory mostly.Because complicated, weight is big, high-temperature oxydation
Absorb sound filler, high velocity air impact sound absorption filler, and reason, the muffler such as aqueous vapor infiltration sound absorption filler are easy to maintenance frequency occur
Numerous, situations such as soundproof effect is poor, and service life is short.
The content of the invention
The present invention is in order to overcome deficiency of the prior art, there is provided a kind of collapsible resonance muffling composite device.
The present invention is to be achieved through the following technical solutions：
A kind of collapsible resonance muffling composite device includes：Noise spectrum test system (101) and collapsible resonance noise reduction
Device (102) two parts, the collapsible resonance silencing means (102) include：Housing (1), the first bi-level resonant chamber (2),
Second bi-level resonant chamber (3), the 3rd bi-level resonant chamber (4), the 4th bi-level resonant chamber (5), first support (6), second
Support (7), the 3rd support (8), the 4th support (9), the first conduction pipe (10), the second conduction pipe (11), the 3rd conduction pipe (12),
4th conduction pipe (13), heat-resisting porous sound absorbing charges (14), the first air inlet (15), the second air inlet (16), the first outlet
Mouth (17), the second gas outlet (18), the first folding channel (19), the second folding channel (20)；The noise spectrum test system
(101) noise source (50), sound level meter (51), high-speed data acquisition card NI (52), computer (53), the time-domain diagram of noise are included
(54), the frequency domain figure (55) of noise；It is characterized in that：Sound level meter (51) uses with high-speed data acquisition card NI (52) electrically to be connected
Connect, high-speed data acquisition card NI (52) is with computer (53) using electric connection；
The bottom of the first bi-level resonant chamber (2) is fixedly arranged on housing (1) by first support (6), and second is double-deck
The bottom of resonator chamber (3) is fixedly arranged on housing (1) by second support (7), and the bottom of the 3rd bi-level resonant chamber (4) passes through
3rd support (8) is fixedly arranged on housing (1), and the bottom of the 4th bi-level resonant chamber (5) is fixedly arranged at housing by the 4th support (9)
(1) on, the first bi-level resonant chamber (2), the second bi-level resonant chamber (3), the 3rd bi-level resonant chamber (4), the 4th bilayer are altogether
Shake and the first resonance air admission hole (21), the second resonance air admission hole (22), the 3rd resonance air admission hole are had at the top of chamber (5)
(23), the 4th resonance air admission hole (24), the first resonance air admission hole (21) of the first bi-level resonant chamber (2) and the first conduction pipe
(10) one end consolidation, the other end of the first conduction pipe (10) connect with the first folding channel (19)；Second bi-level resonant chamber
(3) the second resonance air admission hole (22) consolidates with one end of the second conduction pipe (11), the other end of the second conduction pipe (11) and the
One folding channel (19) connects；The 3rd resonance air admission hole (23) and the 3rd conduction pipe (12) of 3rd bi-level resonant chamber (4)
One end consolidates, and the other end of the 3rd conduction pipe (12) connects with the second folding channel (20)；The of 4th bi-level resonant chamber (5)
One end of four resonance air admission holes (24) and the 4th conduction pipe (13) consolidates, and the other end of the 4th conduction pipe (13) and the second folding are logical
Road (20) connects；
Compared with prior art, the beneficial effects of the invention are as follows：The present invention carries out resistance sound-absorbing using four resonant chambers,
Resistive sound-absorbing is carried out using the sound-absorbing material in folding channel, when noise enters the first bi-level resonant chamber (2), the second bilayer altogether
Shake chamber (3), the 3rd bi-level resonant chamber (4), the 4th bi-level resonant chamber (5) when, in noise gas with first it is double-deck altogether
Shake chamber (2), the second bi-level resonant chamber (3), the 3rd bi-level resonant chamber (4), the 4th bi-level resonant chamber (5) resonant frequency
Identical noise is decayed because of resonant heating, so as to reach the effect eliminated the noise.
Brief description of the drawings
Fig. 1 is resonant labyrinth silencing means schematic diagram, and Fig. 2 is noise spectrum test system, and Fig. 3 is the frequency domain of noise
Figure, Fig. 4 are the structure diagram of resonant labyrinth silencing means.
1. housing, 2. first bi-level resonant chambers, 3. second bi-level resonant chambers, 4. the 3rd bi-level resonant chambers, 5.
Four bi-level resonant chambers, 6. first supports, 7. second supports, 8. the 3rd supports, 9. the 4th supports, 10. first conduction pipes, 11.
Second conduction pipe, 12. the 3rd conduction pipes, 13. the 4th conduction pipes, 14. heat-resisting porous sound absorbing charges, 15. first air inlets,
Lead to 16. the second air inlet, 17. first gas outlets, 18. second gas outlets (18), 19. first folding channels, 20. second fold
Road, 21. first resonance air admission holes, 22. second resonance air admission holes, 23. the 3rd resonance air admission holes, 24. the 4th resonance air admission holes,
50. noise source, 51. sound level meters, 52. high-speed data acquisition card NI, 53. computers, the time-domain diagram of 54. noises, the frequency of 55. noises
Domain figure, 101. noise spectrum test systems and 102. duct noise gas silencing means.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
A kind of collapsible resonance muffling composite device, including：Noise spectrum test system (101) and collapsible resonance noise reduction
Device (102), is characterized in：The collapsible resonance silencing means (102) includes：Housing (1), the first bi-level resonant chamber
(2), the second bi-level resonant chamber (3), the 3rd bi-level resonant chamber (4), the 4th bi-level resonant chamber (5), first support (6),
Second support (7), the 3rd support (8), the 4th support (9), the first conduction pipe (10), the second conduction pipe (11), the 3rd conduction pipe
(12), the 4th conduction pipe (13), heat-resisting porous sound absorbing charges (14), the first air inlet (15), the second air inlet (16), first
Gas outlet (17), the second gas outlet (18), the first folding channel (19), the second folding channel (20)；The noise spectrum test
System (101) includes noise source (50), sound level meter (51), high-speed data acquisition card NI (52), computer (53), the time domain of noise
Scheme (54), the frequency domain figure (55) of noise；It is characterized in that：Sound level meter (51) uses with high-speed data acquisition card NI (52) electrically to be connected
Connect, high-speed data acquisition card NI (52) is with computer (53) using electric connection；
The bottom of the first bi-level resonant chamber (2) is fixedly arranged on housing (1) by first support (6), and second is double-deck
The bottom of resonator chamber (3) is fixedly arranged on housing (1) by second support (7), and the bottom of the 3rd bi-level resonant chamber (4) passes through
3rd support (8) is fixedly arranged on housing (1), and the bottom of the 4th bi-level resonant chamber (5) is fixedly arranged at housing by the 4th support (9)
(1) on, the first bi-level resonant chamber (2), the second bi-level resonant chamber (3), the 3rd bi-level resonant chamber (4), the 4th bilayer are altogether
Shake and the first resonance air admission hole (21), the second resonance air admission hole (22), the 3rd resonance air admission hole are had at the top of chamber (5)
(23), the 4th resonance air admission hole (24), the first resonance air admission hole (21) of the first bi-level resonant chamber (2) and the first conduction pipe
(10) one end consolidation, the other end of the first conduction pipe (10) connect with the first folding channel (19)；Second bi-level resonant chamber
(3) the second resonance air admission hole (22) consolidates with one end of the second conduction pipe (11), the other end of the second conduction pipe (11) and the
One folding channel (19) connects；The 3rd resonance air admission hole (23) and the 3rd conduction pipe (12) of 3rd bi-level resonant chamber (4)
One end consolidates, and the other end of the 3rd conduction pipe (12) connects with the second folding channel (20)；The of 4th bi-level resonant chamber (5)
One end of four resonance air admission holes (24) and the 4th conduction pipe (13) consolidates, and the other end of the 4th conduction pipe (13) and the second folding are logical
Road (20) connects.
A kind of collapsible resonance muffling composite device, is characterized in：The first bi-level resonant chamber (2), second
Bi-level resonant chamber (3), the 3rd bi-level resonant chamber (4), the material of the 4th bi-level resonant chamber (5) are stainless steel.
A kind of collapsible resonance muffling composite device, is characterized in：Heat-resisting porous sound absorbing charges (14) energy
Enough it is maintained at 300 DEG C of temperature-resistant shape.
A kind of collapsible resonance muffling composite device, is characterized in：First folding channel (19), second fold
Passage (20) uses model casting.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (4)
1. a kind of collapsible resonance muffling composite device, including：Noise spectrum test system (101) and collapsible resonance noise reduction dress
(102) are put, are characterized in：The collapsible resonance silencing means (102) includes：Housing (1), the first bi-level resonant chamber (2),
Second bi-level resonant chamber (3), the 3rd bi-level resonant chamber (4), the 4th bi-level resonant chamber (5), first support (6), second
Support (7), the 3rd support (8), the 4th support (9), the first conduction pipe (10), the second conduction pipe (11), the 3rd conduction pipe (12),
4th conduction pipe (13), heat-resisting porous sound absorbing charges (14), the first air inlet (15), the second air inlet (16), the first outlet
Mouth (17), the second gas outlet (18), the first folding channel (19), the second folding channel (20)；The noise spectrum test system
(101) noise source (50), sound level meter (51), high-speed data acquisition card NI (52), computer (53), the time-domain diagram of noise are included
(54), the frequency domain figure (55) of noise；It is characterized in that：Sound level meter (51) uses with high-speed data acquisition card NI (52) electrically to be connected
Connect, high-speed data acquisition card NI (52) is with computer (53) using electric connection；
The bottom of the first bi-level resonant chamber (2) is fixedly arranged on housing (1) by first support (6), the second bi-level resonant
The bottom of chamber (3) is fixedly arranged on housing (1) by second support (7), and the bottom of the 3rd bi-level resonant chamber (4) passes through the 3rd
Support (8) is fixedly arranged on housing (1), and the bottom of the 4th bi-level resonant chamber (5) is fixedly arranged at housing (1) by the 4th support (9)
On, the first bi-level resonant chamber (2), the second bi-level resonant chamber (3), the 3rd bi-level resonant chamber (4), the 4th bi-level resonant chamber
Had at the top of room (5) the first resonance air admission hole (21), second resonance air admission hole (22), the 3rd resonance air admission hole (23),
4th resonance air admission hole (24), the first resonance air admission hole (21) and the first conduction pipe (10) of the first bi-level resonant chamber (2)
One end consolidates, and the other end of the first conduction pipe (10) connects with the first folding channel (19)；The of second bi-level resonant chamber (3)
One end of two resonance air admission holes (22) and the second conduction pipe (11) consolidates, and the other end of the second conduction pipe (11) and the first folding are logical
Road (19) connects；One end of the 3rd resonance air admission hole (23) and the 3rd conduction pipe (12) of 3rd bi-level resonant chamber (4) consolidates,
The other end of 3rd conduction pipe (12) connects with the second folding channel (20)；The 4th of 4th bi-level resonant chamber (5) resonate into
One end of stomata (24) and the 4th conduction pipe (13) consolidates, and the other end and the second folding channel (20) of the 4th conduction pipe (13) are even
It is logical.
2. a kind of collapsible resonance muffling composite device as claimed in claim 1, is characterized in：The first bi-level resonant chamber
Room (2), the second bi-level resonant chamber (3), the 3rd bi-level resonant chamber (4), the material of the 4th bi-level resonant chamber (5) are stainless
Steel.
3. a kind of collapsible resonance muffling composite device as claimed in claim 1, is characterized in：The heat-resisting porous sound absorbing fills
300 DEG C of temperature-resistant shape can be maintained at by filling out thing (14).
4. a kind of collapsible resonance muffling composite device as claimed in claim 1, is characterized in：First folding channel
(19), the second folding channel (20) uses model casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720915410.8U CN206921469U (en) | 2017-07-26 | 2017-07-26 | A kind of collapsible resonance muffling composite device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720915410.8U CN206921469U (en) | 2017-07-26 | 2017-07-26 | A kind of collapsible resonance muffling composite device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206921469U true CN206921469U (en) | 2018-01-23 |
Family
ID=61348428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720915410.8U Expired - Fee Related CN206921469U (en) | 2017-07-26 | 2017-07-26 | A kind of collapsible resonance muffling composite device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206921469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112037750A (en) * | 2020-08-28 | 2020-12-04 | 武汉理工大学 | Active acoustic metamaterial structure unit, control system and acoustic metamaterial plate |
| CN112951191A (en) * | 2021-02-22 | 2021-06-11 | 长春理工大学 | Low-frequency broadband sound absorption composite structure and preparation method thereof |
-
2017
- 2017-07-26 CN CN201720915410.8U patent/CN206921469U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112037750A (en) * | 2020-08-28 | 2020-12-04 | 武汉理工大学 | Active acoustic metamaterial structure unit, control system and acoustic metamaterial plate |
| CN112037750B (en) * | 2020-08-28 | 2024-02-02 | 武汉理工大学 | Active acoustic metamaterial structure unit, control system and acoustic metamaterial plate |
| CN112951191A (en) * | 2021-02-22 | 2021-06-11 | 长春理工大学 | Low-frequency broadband sound absorption composite structure and preparation method thereof |
| CN112951191B (en) * | 2021-02-22 | 2022-10-04 | 长春理工大学 | Low-frequency broadband sound absorption composite structure and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107204181A (en) | A kind of resonant labyrinth noise reduction method and set composite | |
| CN203743083U (en) | Fan silencer used for dust remover | |
| CN206921469U (en) | A kind of collapsible resonance muffling composite device | |
| CN102230407A (en) | Resistance-and-reactance-compounded exhaust silencer | |
| CN103850987A (en) | Fan muffler for dust remover | |
| CN107170436A (en) | A kind of collapsible resonance noise reduction method and set composite | |
| CN109882451A (en) | A kind of silencing means of magnetic suspension air blower emptying | |
| CN103089498A (en) | Air inlet pipe | |
| CN201723280U (en) | Straight-pipe resistance muffler | |
| CN203742714U (en) | Silencer for reducing wind noise | |
| CN202250304U (en) | Noise silencer | |
| CN107630749A (en) | A kind of sound attenuated enclosure of diesel generation sets | |
| CN207038163U (en) | A kind of set composite of resonant labyrinth noise reduction | |
| CN205330766U (en) | Aperture high frequency silencer | |
| CN207049505U (en) | A kind of silencing means of duct noise gas | |
| CN202348376U (en) | Mesh-shaped inner cylinder silencer | |
| CN204253457U (en) | A kind of pipeline silencer | |
| CN204716362U (en) | Engineering machinery noise-reducing silencer | |
| CN204703984U (en) | Impedance composite muffler | |
| CN107178673A (en) | The silencing means and method of a kind of duct noise gas | |
| CN207935603U (en) | A kind of smoke discharging pipe silencing apparatus | |
| CN203067061U (en) | Gasoline engine exhaust silencer | |
| CN206408985U (en) | A kind of noise reduction room for generator | |
| CN102359407A (en) | Multi-cavity labyrinth silencer | |
| CN202348379U (en) | U-type exhaust pipe silencer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180123 Termination date: 20210726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |