CN206468405U - A kind of silencing and purifying device of motor vehicle exhaust emission - Google Patents
A kind of silencing and purifying device of motor vehicle exhaust emission Download PDFInfo
- Publication number
- CN206468405U CN206468405U CN201720100548.2U CN201720100548U CN206468405U CN 206468405 U CN206468405 U CN 206468405U CN 201720100548 U CN201720100548 U CN 201720100548U CN 206468405 U CN206468405 U CN 206468405U
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- CN
- China
- Prior art keywords
- vehicle exhaust
- air inlet
- inlet pipe
- silencing
- motor vehicle
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Abstract
The utility model is related to purifier for vehicle exhaust field, and in particular to a kind of silencing and purifying device of motor vehicle exhaust emission, includes housing, closing cap, air inlet pipe and the escape pipe of semicircular arc；The air inlet pipe and escape pipe are symmetricly set on the screen pack being provided with the two ends of the closing cap, the air inlet pipe and sealed tube for filtering vehicle exhaust；The hush tube matched with the hull shape is provided with the housing, the external sheath of the hush tube has sound-absorbing material, the external sheath matcoveredn of the sound-absorbing material；Cavity area between the protective layer and the closing cap is provided with foamed material；The air inlet pipe, sealed tube are connected with the hush tube.The utility model is simple in construction, and the symmetrical structure of the air inlet pipe and the escape pipe is set, user can be avoided to occur the opposite mistake of installation site in mounting pin sound purifier, easy to use, its cost of manufacture is relatively low.
Description
Technical field
The utility model is related to purifier for vehicle exhaust field, and in particular to a kind of noise elimination purification of motor vehicle exhaust emission
Device.
Background technology
Silencer species is a lot, but studies carefully its noise elimination mechanism, and six kinds of main types, i.e. resistance noise reduction it can be divided into again
Device, reactive muffler, impedance composite muffler, microperforated panel silencer, micropole diffusor and active silencer.
Existing silencer, uses 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 the reason such as aqueous vapor infiltration sound absorption filler, silencer is easy to maintenance frequency occur
Numerous, soundproof effect is poor, situations such as usage cycles are short.
And this is always the design difficulty of muffler, micropunch silencer is then combined designed by most rational noise-cancelling theory
Above mentioned problem is solved, good result is achieved.Micropunch silencer silencer is without using any resistive sound absorption filler, using micro-
The many cavity structures of pinking, high pressure draught enters cavity body in silencer through multiple flow control, changes the audio frequency of Primordial Qi stream step by step.
Drag losses is small, anechoic frequency bandwidth, and dirt is not played during work.It is not afraid of mist of oil, aqueous vapor.High temperature resistant, the impact of resistance to high velocity air.Make environment
Noise meets country《Industrial enterprise's noise sanitary standard》.It is widely used in the industries such as oil, chemical industry, metallurgy, weaving.
It is on current silencing case to use portion at anti-formula silencer, the mutation that anti-formula silencer passes through acoustic characteristic in pipeline more
Part sound wave is reflected back Sounnd source direction, to reach the silencer of noise elimination purpose.Such a silencer one side noise reduction is not too bright
It is aobvious, larger exhaust resistance on the other hand can be produced, so as to cause the power loss of engine larger.
Further, in vehicle exhaust pin sound device field, existing pin sound device majority is used just for noise elimination, is not had generally
There is purifying vehicle exhaust function, cause single for the pin sound device function of motor vehicle exhaust emission, tail gas clean-up effect is poor.
Therefore, the utility model is for current automobile tail gas noise elimination device noise reduction is low, cost of manufacture is higher, structure ratio
The problem of more complicated, purifying vehicle exhaust effect is poor solves existing skill there is provided a kind of silencing and purifying device of motor vehicle exhaust emission
Art exist automobile tail gas noise elimination device noise reduction it is low, cost of manufacture is higher, structure is more complicated, purifying vehicle exhaust effect is poor
The problem of.
Utility model content
The purpose of this utility model is that：For the current automobile tail gas noise elimination device noise reduction that presently, there are it is low,
There is provided a kind of noise elimination of motor vehicle exhaust emission for the problem of cost of manufacture is higher, structure is more complicated, purifying vehicle exhaust effect is poor
Purifier, solve prior art exist automobile tail gas noise elimination device noise reduction it is low, cost of manufacture is higher, structure is more multiple
Miscellaneous, purifying vehicle exhaust effect difference deficiency and defect.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of silencing and purifying device of motor vehicle exhaust emission, includes housing, closing cap, air inlet pipe and the outlet of semicircular arc
Pipe；The air inlet pipe and escape pipe are symmetricly set in the two ends of the closing cap, the air inlet pipe and sealed tube and are provided with use
In the screen pack of filtering vehicle exhaust；The hush tube matched with the hull shape, the hush tube are provided with the housing
External sheath have sound-absorbing material, the external sheath matcoveredn of the sound-absorbing material；The protective layer and the closing cap it
Between cavity area be provided with foamed material；The air inlet pipe, sealed tube are connected with the hush tube.
Silencing and purifying device of the present utility model is symmetrical arranged by the air inlet pipe and escape pipe, makes user specific
During use, the air inlet pipe and the escape pipe arbitrarily can be attached installation with motor vehicle exhaust emission outlet, kept away
Exempt from the problem of user is by the air inlet pipe and anti-escape pipe connection.
Vehicle exhaust pin sound purifier of the present utility model, it is using the shell structure of circular arc, shape is matching
Hush tube be installed on wherein, the vehicle exhaust that is discharged into is declined the flow velocity of low exhaust gas in the cushioning effect of circular arc, allow
Tail gas is buffered, it is to avoid tail gas fast direct connected whistle caused by the present apparatus, and then beneficial to further noise reduction process；
In conjunction with the noise elimination noise reduction effect of hush tube and sound-absorbing material, make the soundproof effect of the present apparatus more preferable.Further, by installing
Screen pack in the air inlet pipe and the escape pipe, can carry out double purified to the vehicle exhaust for draining into the present apparatus,
Improve tail gas clean-up quality and efficiency.Yet further, by the closing cap and the sealing process of the housing, by hush tube
Install in the housing, can preferably be protected with sound-absorbing material, foamed material and protective layer, it is to avoid damaged；Foam material
Material is arranged on the region between protective layer and closing cap, ensure that position restriction of the hush tube in the enclosure interior.
Operation principle：Vehicle exhaust is discharged into the silencing and purifying device by the air inlet pipe, first by installing
Screen pack in the air inlet pipe carries out car exhaust gas filtering, and then the exhaust emissions after filtering enters the noise elimination
Guan Zhong, carries out circular arc buffering by the hush tube of circular arc and eliminates the noise, and along with the effect of the sound-absorbing material, improves noise elimination matter
Amount, makes automobile tail gas noise elimination effect more preferable.Then drained into the escape pipe, passed through by the vehicle exhaust of the hush tube
The screen pack in the escape pipe is filtered again, is effectively filtered with the tail gas for ensureing motor vehicle emission, is improved
Tail gas filtering quality and efficiency.
It is preferred that, the screen pack is arranged on the centre position of the air inlet pipe and the escape pipe, the screen pack
Mesh diameter is 0.01mm-0.12mm.
It is preferred that, the air inlet pipe and escape pipe insertion are arranged in the closing cap, under the screen pack
The through hole of some different pore size sizes is provided with around the tube wall in portion, through-hole diameter is 0.1mm-0.2mm, disappeared beneficial to described in auxiliary
Sound pipe is eliminated the noise.
It is preferred that, the through hole of some different pore size sizes is provided with around the tube wall of the hush tube, through-hole diameter is
0.2mm-0.5mm, beneficial to raising noise elimination quality.
It is preferred that, the sound-absorbing material is the higher superfine fibre mineral wool of acoustic absorptivity.
It is preferred that, the porosity of the foamed material is more than or equal to 90%, is eliminated the noise beneficial to auxiliary.
It is preferred that, the air inlet pipe, escape pipe, hush tube and protective layer are circular arc stainless steel tube.
By adopting the above-described technical solution, the beneficial effects of the utility model are：
1st, vehicle exhaust pin sound purifier of the present utility model, using the shell structure of circular arc, by shape therewith
The hush tube matched somebody with somebody is installed on wherein, the vehicle exhaust being discharged into is declined the flow velocity of low exhaust gas in the cushioning effect of circular arc,
Tail gas is allowed to be buffered, it is to avoid tail gas fast direct connected whistle caused by the present apparatus, and then beneficial at further noise reduction
Reason；In conjunction with the noise elimination noise reduction effect of hush tube and sound-absorbing material, make the soundproof effect of the present apparatus more preferable.
2nd, can be to draining into the automobile of the present apparatus by the screen pack in the air inlet pipe and the escape pipe
Tail gas carries out double purified, improves tail gas clean-up quality and efficiency.
3rd, by the closing cap and the sealing process of the housing, by hush tube and sound-absorbing material, foamed material and
Protective layer is installed in the housing, can preferably be protected, it is to avoid damaged；Foamed material be arranged on protective layer and closing cap it
Between region, ensure that position restriction of the hush tube in the enclosure interior.
4th, the utility model is simple in construction, and the symmetrical structure of the air inlet pipe and the escape pipe is set, can be avoided
User occurs the opposite mistake of installation site in mounting pin sound purifier, and easy to use, its cost of manufacture is relatively low.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is internal structure schematic diagram of the present utility model；
Fig. 3 is muffler pipe structure schematic diagram of the present utility model.
In figure：1st, housing；2nd, closing cap；3rd, air inlet pipe；4th, escape pipe；5th, foamed material；6th, hush tube；7th, absorb sound material
Material；8th, protective layer；9th, screen pack.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments, based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
Embodiment 1, as Figure 1-3：
A kind of silencing and purifying device of motor vehicle exhaust emission, includes housing 1, closing cap 2, the and of air inlet pipe 3 of semicircular arc
Escape pipe 4；The air inlet pipe 3 and escape pipe 4 are symmetricly set in the two ends of the closing cap 2, the air inlet pipe 3 and sealed tube
It is provided with the screen pack 9 for filtering vehicle exhaust；The hush tube with the form fit of housing 1 is provided with the housing 1
6, the external sheath of the hush tube 6 has sound-absorbing material 7, the external sheath matcoveredn 8 of the sound-absorbing material 7；The protection
Cavity area between layer 8 and the closing cap 2 is provided with foamed material 5；The air inlet pipe 3, sealed tube and the hush tube 6
It is connected.
Silencing and purifying device of the present utility model is symmetrical arranged by the air inlet pipe 3 and escape pipe 4, makes user in tool
During body use, the air inlet pipe 3 and the escape pipe 4 arbitrarily can be attached peace with motor vehicle exhaust emission outlet
Dress, it is to avoid the problem of air inlet pipe 3 and the escape pipe 4 are connected anti-by user.
Operation principle：Vehicle exhaust is discharged into the silencing and purifying device by the air inlet pipe 3, first by installing
Screen pack 9 in the air inlet pipe 3 carries out car exhaust gas filtering, and then the exhaust emissions after filtering enters described disappear
In sound pipe 6, circular arc buffering is carried out by the hush tube 6 of circular arc and eliminated the noise, along with the effect of the sound-absorbing material 7, improved
Noise elimination quality, makes automobile tail gas noise elimination effect more preferable.The escape pipe is then drained into by the vehicle exhaust of the hush tube 6
In 4, filtered, obtained effectively with the tail gas for ensureing motor vehicle emission again by the screen pack 9 in the escape pipe 4
Filtering, improves tail gas filtering quality and efficiency.
Preferably, the screen pack 9 is arranged on the centre position of the air inlet pipe 3 and the escape pipe 4, described
The mesh diameter of screen pack 9 is 0.01mm-0.12mm.
Preferably, the air inlet pipe 3 and the insertion of the escape pipe 4 are arranged in the closing cap 2, positioned at described
The through hole of some different pore size sizes is provided with around the tube wall of the bottom of screen pack 9, through-hole diameter is 0.1mm-0.2mm.
Preferably, the through hole of some different pore size sizes is provided with around the tube wall of the hush tube 6, through hole is straight
Footpath is 0.2mm-0.5mm.
Preferably, the sound-absorbing material 7 is the higher superfine fibre mineral wool of acoustic absorptivity.
Preferably, the porosity of the foamed material 5 is more than or equal to 90%.
Preferably, the air inlet pipe 3, escape pipe 4, hush tube 6 and protective layer 8 are circular arc stainless steel tube.
It is described above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed
Or replace, it should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be wanted with right
The protection domain asked is defined.
Claims (7)
1. a kind of silencing and purifying device of motor vehicle exhaust emission, it is characterised in that：Housing, closing cap including semicircular arc, enter
Tracheae and escape pipe；The air inlet pipe and escape pipe are symmetricly set on the two ends of the closing cap, the air inlet pipe and sealed tube
Inside it is provided with the screen pack for filtering vehicle exhaust；The hush tube matched with the hull shape is provided with the housing,
The external sheath of the hush tube has sound-absorbing material, the external sheath matcoveredn of the sound-absorbing material；The protective layer and institute
The cavity area stated between closing cap is provided with foamed material；The air inlet pipe, sealed tube are connected with the hush tube.
2. a kind of silencing and purifying device of motor vehicle exhaust emission as claimed in claim 1, it is characterised in that：The screen pack is set
The centre position in the air inlet pipe and the escape pipe is put, the mesh diameter of the screen pack is 0.01mm-0.12mm.
3. a kind of silencing and purifying device of motor vehicle exhaust emission as claimed in claim 1, it is characterised in that：The air inlet pipe and
The escape pipe insertion is arranged in the closing cap, and some different holes are provided with around the tube wall of the screen pack bottom
The through hole of footpath size, through-hole diameter is 0.1mm-0.2mm.
4. a kind of silencing and purifying device of motor vehicle exhaust emission as claimed in claim 1, it is characterised in that：The hush tube
The through hole of some different pore size sizes is provided with around tube wall, through-hole diameter is 0.2mm-0.5mm.
5. a kind of silencing and purifying device of motor vehicle exhaust emission as claimed in claim 1, it is characterised in that：The sound-absorbing material
For the higher superfine fibre mineral wool of acoustic absorptivity.
6. a kind of silencing and purifying device of motor vehicle exhaust emission as claimed in claim 1, it is characterised in that：The foamed material
Porosity be more than or equal to 90%.
7. a kind of silencing and purifying device of motor vehicle exhaust emission as described in claim 1-6 is any, it is characterised in that：It is described enter
Tracheae, escape pipe, hush tube and protective layer are circular arc stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720100548.2U CN206468405U (en) | 2017-01-24 | 2017-01-24 | A kind of silencing and purifying device of motor vehicle exhaust emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720100548.2U CN206468405U (en) | 2017-01-24 | 2017-01-24 | A kind of silencing and purifying device of motor vehicle exhaust emission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206468405U true CN206468405U (en) | 2017-09-05 |
Family
ID=59704521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720100548.2U Expired - Fee Related CN206468405U (en) | 2017-01-24 | 2017-01-24 | A kind of silencing and purifying device of motor vehicle exhaust emission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206468405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905877A (en) * | 2017-10-30 | 2018-04-13 | 郑州搜趣信息技术有限公司 | Automobile exhaust gas purifying installation with silencing function |
-
2017
- 2017-01-24 CN CN201720100548.2U patent/CN206468405U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905877A (en) * | 2017-10-30 | 2018-04-13 | 郑州搜趣信息技术有限公司 | Automobile exhaust gas purifying installation with silencing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170905 Termination date: 20180124 |