CN206035615U - Novel silencing device - Google Patents
Novel silencing device Download PDFInfo
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- CN206035615U CN206035615U CN201620874090.1U CN201620874090U CN206035615U CN 206035615 U CN206035615 U CN 206035615U CN 201620874090 U CN201620874090 U CN 201620874090U CN 206035615 U CN206035615 U CN 206035615U
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- chamber
- insertion tube
- tube
- acoustic filter
- silencing device
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Abstract
The utility model relates to a novel silencing device, through parallelly connected with two the same silencers, it separates the inner chamber to adopt the microperforated panel to add asbestos between two silencers, the inside all adoptions of silencer have the microperforated panel and separate into two exhaust cavities with asbestos with the inner chamber, make the exhaust noise make a round trip to impact in the exhaust passage, the asbestos layer can absorb partial noise, the insert tube of silencer has all adopted tapered pipeline, thereby reduce the exhaust tesistance of silencer, converge the discharge silencer behind the air current process second chamber of two silencers in exhaust duct. Through emulation, test, the utility model discloses a the noise reduction effect of silencer is better than traditional silencer to the exhaust tesistance of silencer reduces than traditional silencer.
Description
Technical field
This utility model is related to acoustic filter, specifically a kind of Novel silencing device.
Background technology
At present, common acoustic filter（Muffler）It is to prevent sound transmission and allow a kind of device that air-flow passes through, is
Eliminate the important measures of air power noise.Conventional muffler be all by flange, inlet tube, cavity, insertion tube dividing plate and
Outlet is constituted, and flange is connected with the air vent of electromotor, and inlet tube is connected with flange welding, and air-flow is entered by inlet tube
Cavity, sound are eliminated the noise in cavity, and air-flow excludes acoustic filter by cavity from outlet.But, with social development, to eliminating the noise
Amount requires more and more higher, practice have shown that, simple acoustic filter has not often reached transmission loss and the requirement of the pressure loss.
Utility model content
For the problem for overcoming the existing acoustic filter pressure loss in current part excessive and transmission loss is too small, this practicality is new
Type provides a kind of Novel silencing device of special construction, and the silencing apparatus can make full use of limited space, with bigger biography
Pass loss and the less pressure loss.
The technical scheme adopted by this utility model solve problem is：
A kind of Novel silencing device, including the noise elimination being made up of flange, inlet tube, insertion tube, dividing plate and outlet tube
Device, unlike the prior art：
The first square acoustic filter and the second acoustic filter is provided with, it is in parallel between the first acoustic filter and the second acoustic filter；
First chamber and second chamber are separated into by perforated plate between first acoustic filter and the second acoustic filter, flange passes through
Inlet tube is connected with the air inlet insertion tube of first chamber, is connected by taper insertion tube between first chamber and second chamber
Connect；Second chamber is connected with outlet tube by gas outlet insertion tube.
The first chamber inner chamber is provided with mesh plate, and first chamber is separated into the first upper chamber and first by mesh plate
Lower chambers, flange are connected with the insertion tube of the first upper chamber, the first lower chambers respectively by inlet tube.
The second chamber inner chamber is provided with mesh plate, and second chamber is separated into the second upper chamber and second by mesh plate
Lower chambers, the first upper chamber, the first lower chambers are connected with the second upper chamber, the second lower chambers by taper insertion tube respectively, the
Two upper chamber, the second lower chambers are connected with outlet tube by gas outlet insertion tube respectively.
The air inlet insertion tube, gas outlet insertion tube are cone-type piercer pipe, are uniformly laid with through hole, taper on tube wall
Perforated pipe taper is 1: 8.
Taper insertion tube of the taper insertion tube for tape punching, is uniformly laid with through hole, cone-type piercer pipe cone on tube wall
Spend for 1: 8；Taper insertion tube connects first chamber and second chamber respectively.
The mesh plate surface is provided with asbestos layer, is uniformly laid with through hole on mesh plate, and its punching rate is 6%, and aperture is 3
mm。
The perforation plate surface is provided with asbestos layer, is uniformly laid with through hole on perforated plate, and its punching rate is 6%, and aperture is
4mm。
The intubating length of the air inlet insertion tube for first chamber 1/2；The intubating length of gas outlet insertion tube is the
The 1/4 of two chambers.
The beneficial effects of the utility model are：
Two identical square mufflers are in parallel 1., acoustic filter is arranged on engine exhaust port, in acoustic filter most
Under conditions of big cross sectional dimensions are less than the 1/4 of wavelength, space can be made full use of, increase the sound deadening capacity of acoustic filter, two
The shunting of cavity can reduce the flowing velocity of acoustic filter internal gas, reduce the exhaust resistance of acoustic filter,
2. the sound deadening capacity of square muffler is big compared with circular sound deadening capacity, and the pressure loss is less,
3. insertion tube is taper, and the exhaust resistance of acoustic filter can be less, inside acoustic filter with the addition of asbestos layer, can be
Certain noise is fallen in acoustic filter internal consumption, makes the noise reduction of acoustic filter more preferable.
Description of the drawings
Structural representations of the Fig. 1 for the acoustic filter of this utility model embodiment.
Fig. 2 is A-A in Fig. 1 to schematic diagram.
In figure：1. air inlet flange；2. inlet tube；3 first upper chamber；4. the first chamber air inlet insertion tube；5. first
Chamber gas outlet insertion tube；6. the second chamber air inlet insertion tube；7. the second upper chamber；8. the second chamber gas outlet insertion tube；9. outlet
Mouth pipe；10. the first lower chambers；11. mesh plates；12. perforated plates；13. second lower chambers.
Specific embodiment
By describing technology contents of the present utility model, the purpose realized and effect in detail, below in conjunction with embodiment simultaneously
And coordinate accompanying drawing to be explained.
Embodiment：
With reference to Fig. 1-2, a kind of Novel silencing device is composed in parallel by 2 shapes, equivalently-sized square muffler,
Acoustic filter is separated into by first chamber and second chamber, perforated plate 12 using the perforated plate 12 with micropore inside two acoustic filters
Surface is provided with asbestos layer, is uniformly laid with through hole on perforated plate, and its punching rate is 6%, and aperture is 4mm；Greatly reduce acoustic filter
Air velocity, and make exhaust noise carry out repercussion inside acoustic filter, after first chamber and second chamber acoustic filter
Noise reduction is excluded, so as to increase the noise reduction of acoustic filter.The sectional view of described acoustic filter is made up of two square acoustic filters
（As shown in Figure 2）.
First chamber inner chamber is provided with mesh plate 11, and first chamber is separated into the first upper chamber 3 and by mesh plate 11
One lower chambers 10, flange 1 are inserted with the first chamber air inlet of the first upper chamber 3, the first lower chambers 10 respectively by inlet tube 2
Pipe 4 is connected.
Second chamber inner chamber is provided with mesh plate 11, and second chamber is separated into the second upper chamber 7 and by mesh plate 11
Two lower chambers 13, the first upper chamber 3, the first lower chambers 10 pass through first chamber gas outlet insertion tube 5 and the second upper chamber respectively
7th, the second chamber air inlet insertion tube 6 of the second lower chambers 13 is connected, and the second upper chamber 7, the second lower chambers 13 pass through respectively
QI KOU insertion tube 8 is connected with outlet tube 9.
Above-mentioned inlet tube 2, first chamber gas outlet insertion tube 5, the insertion of second chamber air inlet insertion tube 6, gas outlet
Pipe 8, outlet tube 9 are cone-type piercer pipe, are uniformly laid with through hole on tube wall, and cone-type piercer pipe taper is 1: 8, is made through having
The perforated pipe 8 of taper enters muffler tail pipe and discharges air.
11 surface of mesh plate is provided with asbestos layer, is uniformly laid with through hole on mesh plate 11, and its punching rate is 6%, and aperture is 3
mm。
The intubating length of the first chamber air inlet insertion tube 4 be respectively the first upper chamber 3, the 1/2 of the first lower chambers 10,
The intubating length of the first chamber gas outlet insertion tube 5 be respectively the first upper chamber 3, the 1/4 of the first lower chambers 10,
The intubating length of the second chamber air inlet insertion tube 6 be respectively the second upper chamber 7, the 1/2 of the second lower chambers 13；
The intubating length of the second chamber gas outlet insertion tube 8 be respectively the second upper chamber 7, the 1/4 of the second lower chambers 13.
Described the first chamber of noise elimination inlet tube 4, the first chamber outlet 5, the inlet tube 6 in the second chamber, the outlet 8 in the second chamber
For perforated pipe, punching rate is 5%, and aperture is Φ 3.
Arrow in Fig. 1 represents the trend of exhaust noise, and utility model works principle is as follows：
（1）The exhaust noise discharged from engine exhaust port enters the first upper chamber of acoustic filter 3 and first by inlet tube 2
In lower chambers 10, enter under the second upper chamber 7 and the second lower chambers 13, or the first upper chamber 3 and first through perforated plate 12
Chamber 10 is through 11 convection current of mesh plate, 13 convection current of the second upper chamber 7 and the second lower chambers.
（2）As silencer internal wall surface is covered with asbestos layer, exhaust noise is during acoustic filter inner impact by mesh plate
11 and the surface asbestos layer of perforated plate 12 absorb in a large number, such that it is able to further reduce the decibel value of exhaust noise, make final row
The exhaust noise value for going out is greatly reduced.
（3）After reaching the second upper chamber 7 and the second lower chambers 13, by second chamber gas outlet insert port 8 in acoustic filter
Realize converging in air vent pipe 9, discharge air-flow and noise.
Knowable to foregoing description, this utility model by by two identical acoustic filters and being unified into an acoustic filter, two
Add asbestos to separate using the mesh plate with micropore between acoustic filter, between the first chamber of acoustic filter and the second chamber, adopt microperforated panel
Separate, the insertion tube inside acoustic filter adopts tapered perforated pipe, does not affect so as to reduce the exhaust resistance of acoustic filter
The noise reduction of acoustic filter, noise are clashed into inside acoustic filter back and forth, discharge into acoustic filter air vent, reach behind the second chamber
Acoustic filter noise reduction and reduce the exhaust resistance of electromotor.Through emulation, acoustic filter exhaust noise of the present utility model is than tradition
Acoustic filter noise reduction more preferably, exhaust resistance is less.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalents made using this utility model description and accompanying drawing content, or directly or indirectly apply in related technology neck
Domain, is included in the scope of the claims of the present utility model in the same manner.
Claims (8)
1. a kind of Novel silencing device, including the acoustic filter being made up of flange, inlet tube, insertion tube, dividing plate and outlet tube,
It is characterized in that：
The first square acoustic filter and the second acoustic filter is provided with, it is in parallel between the first acoustic filter and the second acoustic filter；
First chamber and second chamber are separated into by perforated plate between first acoustic filter and the second acoustic filter, flange passes through air inlet
Mouth pipe is connected with the air inlet insertion tube of first chamber, is connected by taper insertion tube between first chamber and second chamber；The
Two chambers are connected with outlet tube by gas outlet insertion tube.
2. Novel silencing device according to claim 1, is characterized in that：The first chamber inner chamber is provided with mesh plate, leads to
Cross mesh plate and first chamber be separated into into the first upper chamber and the first lower chambers, flange by inlet tube respectively with the first epicoele
Room, the insertion tube connection of the first lower chambers.
3. Novel silencing device according to claim 1, is characterized in that：The second chamber inner chamber is provided with mesh plate, leads to
Cross mesh plate and second chamber is separated into into the second upper chamber and the second lower chambers, the first upper chamber, the first lower chambers pass through respectively
Taper insertion tube is connected with the second upper chamber, the second lower chambers, and the second upper chamber, the second lower chambers are inserted by gas outlet respectively
Pipe is connected with outlet tube.
4. Novel silencing device according to claim 1, is characterized in that：The air inlet insertion tube, gas outlet insertion tube
Cone-type piercer pipe is, through hole on tube wall, is uniformly laid with, cone-type piercer pipe taper is 1: 8.
5. Novel silencing device according to claim 1, is characterized in that：The taper insertion tube is inserted for the taper of tape punching
Enter pipe, on tube wall, be uniformly laid with through hole, cone-type piercer pipe taper is 1: 8；Taper insertion tube connects first chamber and respectively
Two chambers.
6. the Novel silencing device according to Claims 2 or 3, is characterized in that：The mesh plate surface is provided with asbestos layer,
Through hole is laid with mesh plate uniformly, its punching rate is 6%, and aperture is 3 mm.
7. Novel silencing device according to claim 1, is characterized in that：The perforation plate surface is provided with asbestos layer, bores a hole
Through hole is laid with plate uniformly, its punching rate is 6%, and aperture is 4mm.
8. Novel silencing device according to claim 1, is characterized in that：The intubating length of the air inlet insertion tube is the
The 1/2 of one chamber；The intubating length of gas outlet insertion tube for second chamber 1/4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620874090.1U CN206035615U (en) | 2016-08-12 | 2016-08-12 | Novel silencing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620874090.1U CN206035615U (en) | 2016-08-12 | 2016-08-12 | Novel silencing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206035615U true CN206035615U (en) | 2017-03-22 |
Family
ID=58309286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620874090.1U Expired - Fee Related CN206035615U (en) | 2016-08-12 | 2016-08-12 | Novel silencing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206035615U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227991A (en) * | 2017-08-03 | 2017-10-03 | 沈阳诚信钛业有限公司 | A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler |
| CN107781015A (en) * | 2017-10-20 | 2018-03-09 | 江阴市蒋氏汽摩部件有限公司 | A kind of discharge duct of automobile using |
| CN109209823A (en) * | 2018-09-25 | 2019-01-15 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of noise-reducing structure and compressor |
| CN110067626A (en) * | 2018-01-22 | 2019-07-30 | 埃贝斯佩歇排气技术有限责任两合公司 | Silencer |
| CN110454264A (en) * | 2018-05-07 | 2019-11-15 | 天纳克汽车经营有限公司 | Muffler assembly with center silencer and two satellite silencers |
-
2016
- 2016-08-12 CN CN201620874090.1U patent/CN206035615U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227991A (en) * | 2017-08-03 | 2017-10-03 | 沈阳诚信钛业有限公司 | A kind of dual reflux opposite-flushing type back pressure automobile exhaust muffler |
| CN107781015A (en) * | 2017-10-20 | 2018-03-09 | 江阴市蒋氏汽摩部件有限公司 | A kind of discharge duct of automobile using |
| CN107781015B (en) * | 2017-10-20 | 2019-09-10 | 江阴市蒋氏汽摩部件有限公司 | A kind of exhaust pipe of automobile |
| CN110067626A (en) * | 2018-01-22 | 2019-07-30 | 埃贝斯佩歇排气技术有限责任两合公司 | Silencer |
| US11377989B2 (en) | 2018-01-22 | 2022-07-05 | Purem GmbH | Muffler |
| CN110454264A (en) * | 2018-05-07 | 2019-11-15 | 天纳克汽车经营有限公司 | Muffler assembly with center silencer and two satellite silencers |
| CN110454264B (en) * | 2018-05-07 | 2021-12-24 | 天纳克汽车经营有限公司 | Muffler assembly with central muffler and two satellite mufflers |
| CN109209823A (en) * | 2018-09-25 | 2019-01-15 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of noise-reducing structure and compressor |
| CN109209823B (en) * | 2018-09-25 | 2024-07-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Amortization structure and compressor |
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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: 20170322 Termination date: 20170812 |