CN211422730U - Post-purification treatment silencer - Google Patents
Post-purification treatment silencer Download PDFInfo
- Publication number
- CN211422730U CN211422730U CN201922476234.4U CN201922476234U CN211422730U CN 211422730 U CN211422730 U CN 211422730U CN 201922476234 U CN201922476234 U CN 201922476234U CN 211422730 U CN211422730 U CN 211422730U
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- China
- Prior art keywords
- cavity
- pipe
- silencing
- air inlet
- amortization
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- Expired - Fee Related
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- 238000000746 purification Methods 0.000 title claims abstract description 19
- 230000003584 silencer Effects 0.000 title description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 230000030279 gene silencing Effects 0.000 claims description 69
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 3
- 238000004887 air purification Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001743 silencing effect Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Exhaust Silencers (AREA)
Abstract
The utility model relates to a back purification treatment muffler, which comprises a housin, the inside of casing is provided with air inlet cavity, resistance amortization cavity, purifies cavity, intercommunication cavity, hindering nature amortization cavity and goes out the gas cavity, air inlet cavity, resistance amortization cavity and purification cavity set up side by side and communicate in proper order at the casing right-hand member, and air inlet cavity's lateral wall is connected with the intake pipe, are equipped with resistance amortization subassembly in the resistance amortization cavity, are equipped with three way catalyst converter in the purification cavity, the intercommunication cavity is used for communicateing purification cavity and hindering nature amortization cavity, hindering nature amortization cavity sets up side by side at the left end of casing and is linked together with going out the gas cavity, is equipped with hindering nature amortization subassembly in. The utility model has the advantages of reasonable design, have good noise cancelling effect, purify tail gas simultaneously, reduce the pollution to the environment.
Description
The technical field is as follows:
the utility model relates to a back purification treatment muffler.
Background art:
it is known that the exhaust port of an engine generates a large noise when the engine is operated, and a silencer is generally installed at the exhaust port in order to reduce the noise. However, the existing silencer has an unsatisfactory silencing effect, most of tail gas subjected to silencing treatment is directly discharged, the surrounding environment is polluted, the health of people is harmed, and the problems of high noise and serious pollution cannot be effectively solved.
The utility model has the following contents:
the utility model discloses make the improvement to the problem that above-mentioned prior art exists, promptly the utility model aims to solve the technical problem that a post purification treatment muffler is provided, rational in infrastructure not only improves the noise cancelling effect, reduces tail gas pollution moreover.
In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a back purification treatment muffler, includes the casing, the inside of casing is provided with air inlet chamber, resistance amortization cavity, purifies cavity, intercommunication cavity, hindering nature amortization cavity and the cavity of giving vent to anger, air inlet chamber, resistance amortization cavity and purification cavity set up side by side and communicate at the casing right-hand member and in proper order, and air inlet chamber's lateral wall is connected with the intake pipe, are equipped with resistance amortization subassembly in the resistance amortization cavity, are equipped with three way catalyst converter in the purification cavity, the intercommunication cavity is used for intercommunication to purify cavity and hindering nature amortization cavity, hindering nature amortization cavity sets up side by side at the left end of casing with the cavity of giving vent to anger and is linked together, is equipped.
Further, the reactive silencing component comprises a buffering box body accommodated in the reactive silencing cavity, a gas pipe for communicating the gas inlet of the gas inlet cavity and the three-way catalyst penetrates through the middle of the buffering box body, and a gas outlet hole for facilitating partial gas in the gas inlet cavity to flow into the buffering box body is formed in the side wall of one end, close to the gas inlet cavity, of the gas pipe.
Further, an air outlet of the three-way catalyst is communicated with the communication chamber.
Furthermore, the resistive silencing component comprises two connecting end plates which are arranged in opposite directions and a silencing pipe which is fixed between the two connecting end plates, the silencing pipe comprises an inner silencing pipe and an outer silencing pipe which are coaxially arranged, a plurality of silencing holes are uniformly distributed on the peripheral side arms of the inner silencing pipe and the outer silencing pipe, a partition plate is arranged in the middle of the inner silencing pipe and divides the inside of the inner silencing pipe into an air inlet part and an air outlet part along the axis, and the peripheral side arms of the outer silencing pipe are coated with silencing materials; and the middle part of one connecting end plate is provided with an air inlet through hole, the middle part of the other connecting end plate is provided with an air outlet through hole, and the air inlet through hole and the air outlet through hole are respectively communicated with the air inlet part and the air outlet part of the inner silencing pipe.
Furthermore, the section of the inner silencing tube is circular, and the section of the outer silencing tube is square; four reinforcing rods are fixedly connected between the two connecting end plates, the four reinforcing rods are respectively arranged at four top corners on the inner periphery of the outer silencing pipe, and the outer walls of the reinforcing rods are in contact with the inner wall of the outer silencing pipe.
Further, the sound attenuation material is a glass fiber blanket.
Further, the air inlet through hole is communicated with the communicating cavity through a first connecting pipe, and the air outlet through hole is communicated with the air outlet cavity through a second connecting pipe.
Further, the air inlet cavity and the air outlet cavity are both arranged at the front end of the interior of the shell; the communicating chamber is arranged at the rear end of the interior of the shell and is transversely arranged between the purifying chamber and the resistive silencing chamber.
Further, the shell is hexahedral.
Compared with the prior art, the utility model discloses following effect has: (1) the internal air flue is designed in a C shape, so that the length of the silencing channel is increased, and the silencing effect is improved; (2) by combining resistance silencing and resistance silencing, the exhaust blast noise can be effectively reduced, and the exhaust noise is softer; (3) a three-way catalyst is arranged between the resistant noise reduction and the resistive noise reduction, so that harmful gas in tail gas can be purified, and the environment pollution is reduced.
Description of the drawings:
fig. 1 is a schematic top sectional view of an embodiment of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;
FIG. 3 is a schematic of section C-C of FIG. 1;
fig. 4 is a schematic front sectional view of a resistive muffler assembly according to an embodiment of the present invention;
fig. 5 is a schematic sectional view taken along line B-B in fig. 4.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1 to 5, the utility model relates to a post-purification treatment silencer, including hexahedral housing 1, the inside of housing 1 is separated into air inlet chamber 2, resistance silencing chamber 3, purification chamber 4, communicating chamber 5, resistance silencing chamber 6 and air outlet chamber 7 via the baffle, air inlet chamber 2, resistance silencing chamber 3 and purification chamber 4 are arranged at the right end of housing 1 side by side and are communicated in sequence, the side wall of air inlet chamber 2 is connected with air inlet pipe 8, the air inlet pipe is connected with the exhaust outlet of engine for the input of tail gas; a reactive silencing component 9 for performing reactive silencing treatment on the tail gas is arranged in the reactive silencing chamber 3, and a three-way catalyst 10 for purifying harmful gas in the tail gas is arranged in the purifying chamber 4; intercommunication cavity 5 is used for intercommunication purification cavity 4 and hindering nature amortization cavity 6, hindering nature amortization cavity 6 sets up side by side at the left end of casing 1 and is linked together with giving vent to anger cavity 7, is equipped with in hindering nature amortization cavity 6 to be used for carrying out hindering nature amortization processing's hindering nature amortization subassembly 11 to tail gas, and the top of giving vent to anger cavity 7 is connected with outlet duct 12 for the gas after the discharge amortization processing. This muffler adopts square structure, and inside cavity is C shape and distributes, increases amortization channel strength, combines together through adopting resistance and hindering nature amortization, reduces the exhaust plosive, lets the exhaust sound softer.
In the embodiment, the air outlet of the three-way catalyst 10 is communicated with the communication chamber 5; the reactive silencing component 9 comprises a buffer box body 13 accommodated in the reactive silencing chamber 3, a gas pipe 14 used for communicating the gas inlet of the gas inlet chamber 2 and the three-way catalyst 10 penetrates through the middle part of the buffer box body 13, and a gas outlet hole 15 which is beneficial to partial gas in the gas inlet chamber 2 to flow into the buffer box body 13 is formed in one end side wall of the gas pipe 14 close to the gas inlet chamber 2. When the tail gas in the air inlet chamber 2 passes through the air delivery pipe 14, part of the tail gas enters the buffer box body 13 through the air outlet 15, so that all the tail gas is prevented from entering the three-way catalyst 10 at one time, and when the engine stops tail gas emission, the tail gas in the buffer box body 13 enters the three-way catalyst 10 through the air delivery pipe 14; the whole process enables the gas to flow smoothly, reduces sound vibration, effectively reduces exhaust explosion sound, enables the exhaust sound to be softer, and achieves resistance silencing. It should be noted that the three-way catalyst is an existing mature product, and is widely applied to automobile exhaust emission, and the structure of the three-way catalyst is not described in detail herein.
In this embodiment, the resistive muffler assembly 11 includes two connection end plates 25 arranged opposite to each other and a muffler pipe fixed between the two connection end plates 25, the muffler pipe includes an inner muffler pipe 16 and an outer muffler pipe 17 arranged coaxially, a plurality of muffler holes 18 are arranged on the circumferential side arms of the inner muffler pipe 16 and the outer muffler pipe 17, a partition 26 is arranged in the middle of the inner muffler pipe 16, the partition 26 divides the inside of the inner muffler pipe 16 into an air inlet 27 and an air outlet 28 along the axis, and the circumferential side arms of the outer muffler pipe 17 are covered with a glass fiber blanket 19; the middle of one of the connecting end plates 25 is provided with an air inlet through hole 20, the middle of the other connecting end plate 25 is provided with an air outlet through hole 21, the air inlet through hole 20 and the air outlet through hole 21 are respectively communicated with an air inlet part 27 and an air outlet part 28 of the inner muffler pipe 16, the air inlet through hole 20 is communicated with the communicating cavity 5 through a first connecting pipe 22, and the air outlet through hole 21 is communicated with the air outlet cavity 7 through a second connecting pipe 23. During operation, the gas in the flow chamber 5 enters the air inlet 27 of the inner muffler pipe 16 through the first connecting pipe 22, then enters the gap between the inner muffler pipe and the outer muffler pipe from the muffling hole 18 on the side wall of the air inlet 27, then enters the air outlet 28 from the muffling hole 18 on the side wall of the air outlet, and finally flows to the air outlet chamber from the second connecting pipe 23.
In this embodiment, the inner muffler pipe 16 has a circular cross-section, and the outer muffler pipe 17 has a square cross-section; four reinforcing rods 24 are fixedly connected between the two connecting end plates 25, the four reinforcing rods 24 are respectively arranged at four top corners of the inner periphery of the outer silencing pipe 17, and the outer wall of each reinforcing rod 24 is in contact with the inner wall of the outer silencing pipe 17 so as to improve the strength of the whole resistive silencing structure.
In this embodiment, the air inlet chamber 2 and the air outlet chamber 7 are both arranged at the front end of the interior of the housing 1; the communicating chamber 5 is arranged at the rear end of the interior of the shell 1 and is transversely arranged between the purifying chamber 4 and the resistive silencing chamber 6.
In the embodiment, when the three-way catalytic converter works, the air inlet pipe 8 is connected with an engine tail gas discharge port, and tail gas generated by the work of the engine enters the air inlet chamber 2 through the air inlet pipe and is conveyed to the three-way catalytic converter 10 through the air conveying pipe 14; in the conveying process, a part of tail gas can enter the buffer box body 13 from the air outlet hole 15 on the side wall of the air conveying pipe 14, and the part of tail gas is stored in the buffer box body 13, so that the whole tail gas emission is buffered, and the exhaust burst noise is reduced; the tail gas entering the three-way catalyst 10 is purified by the three-way catalyst 10, then enters the communicating chamber 5, then enters the resistive silencing component 11 from the communicating chamber 5, silencing holes on the circumferential side arms of the inner silencing pipe and the outer silencing pipe of the resistive silencing component 11 are matched with the glass fiber blanket to carry out resistive silencing, and finally the tail gas after silencing enters the gas outlet chamber 7 and is discharged from the gas outlet pipe 12 to finish the silencing treatment of the tail gas.
The utility model has the advantages that: (1) the silencer has the advantages that the structure is reasonable, the layout of the air inlet chamber, the reactive silencing chamber, the purifying chamber, the communicating chamber, the resistive silencing chamber and the air outlet chamber is C-shaped, the length of a silencing channel is increased, and compared with the existing silencer, the silencer has a better silencing effect; (2) the resistance silencing component is matched with the resistance silencing component for silencing, so that the silencing effect is good, the exhaust blast noise is reduced, and the exhaust noise is softer; (3) the three-way catalytic converter is arranged inside the silencer to purify harmful gas in tail gas, so that the discharged tail gas is prevented from polluting the environment, and the silencer is more environment-friendly in use.
The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.
The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (9)
1. A post-purification treatment muffler characterized in that: the air purification device comprises a housin, the inside of casing is provided with air inlet cavity, resistance amortization cavity, purifies cavity, intercommunication cavity, hindering nature amortization cavity and the cavity of giving vent to anger, air inlet cavity, resistance amortization cavity and purification cavity set up side by side and communicate in proper order at the casing right-hand member, and air inlet cavity's lateral wall is connected with the intake pipe, are equipped with resistance amortization subassembly in the resistance amortization cavity, are equipped with three way catalyst converter in the purification cavity, the intercommunication cavity is used for communicateing purification cavity and hindering nature amortization cavity, hindering nature amortization cavity sets up side by side at the left end of casing and is linked together with the cavity of giving vent to anger.
2. The aftertreatment muffler of claim 1, wherein: the resistance amortization subassembly includes the buffer box body of holding in the resistance amortization cavity, the middle part of buffer box body runs through the gas-supply pipe that is used for communicateing the air inlet of intake chamber and three way catalyst converter, the gas-supply pipe is close to the one end lateral wall of intake chamber and is offered in order to do benefit to the inside venthole of partial gas inflow buffer box body in the intake chamber.
3. The aftertreatment muffler of claim 2, wherein: and the air outlet of the three-way catalyst is communicated with the communicating chamber.
4. The aftertreatment muffler of claim 1, wherein: the resistance silencing assembly comprises two connecting end plates which are arranged oppositely and a silencing pipe fixed between the two connecting end plates, the silencing pipe comprises an inner silencing pipe and an outer silencing pipe which are coaxially arranged, a plurality of silencing holes are uniformly distributed on the peripheral side arms of the inner silencing pipe and the outer silencing pipe, a partition plate is arranged in the middle of the inner silencing pipe and divides the inside of the inner silencing pipe into an air inlet part and an air outlet part along the axis, and a silencing material is coated on the peripheral side arm of the outer silencing pipe; and the middle part of one connecting end plate is provided with an air inlet through hole, the middle part of the other connecting end plate is provided with an air outlet through hole, and the air inlet through hole and the air outlet through hole are respectively communicated with the air inlet part and the air outlet part of the inner silencing pipe.
5. The aftertreatment muffler of claim 4, wherein: the cross section of the inner silencing pipe is circular, and the cross section of the outer silencing pipe is square; four reinforcing rods are fixedly connected between the two connecting end plates, the four reinforcing rods are respectively arranged at four top corners on the inner periphery of the outer silencing pipe, and the outer walls of the reinforcing rods are in contact with the inner wall of the outer silencing pipe.
6. The aftertreatment muffler of claim 4, wherein: the noise reduction material is a glass fiber blanket.
7. The aftertreatment muffler of claim 4, wherein: the air inlet through hole is communicated with the communicating cavity through the first connecting pipe, and the air outlet through hole is communicated with the air outlet cavity through the second connecting pipe.
8. The aftertreatment muffler of claim 1, wherein: the air inlet cavity and the air outlet cavity are both arranged at the front end of the interior of the shell; the communicating chamber is arranged at the rear end of the interior of the shell and is transversely arranged between the purifying chamber and the resistive silencing chamber.
9. The aftertreatment muffler of claim 1, wherein: the shell is hexahedron-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922476234.4U CN211422730U (en) | 2019-12-31 | 2019-12-31 | Post-purification treatment silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922476234.4U CN211422730U (en) | 2019-12-31 | 2019-12-31 | Post-purification treatment silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211422730U true CN211422730U (en) | 2020-09-04 |
Family
ID=72274962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922476234.4U Expired - Fee Related CN211422730U (en) | 2019-12-31 | 2019-12-31 | Post-purification treatment silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211422730U (en) |
-
2019
- 2019-12-31 CN CN201922476234.4U patent/CN211422730U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20200904 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |