CN205977350U - Exhaust muffler suitable for tail gas is thermoelectric to be retrieved - Google Patents
Exhaust muffler suitable for tail gas is thermoelectric to be retrieved Download PDFInfo
- Publication number
- CN205977350U CN205977350U CN201620825171.2U CN201620825171U CN205977350U CN 205977350 U CN205977350 U CN 205977350U CN 201620825171 U CN201620825171 U CN 201620825171U CN 205977350 U CN205977350 U CN 205977350U
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- CN
- China
- Prior art keywords
- air inlet
- housing
- tail gas
- exhaust silencer
- deflector
- 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.)
- Withdrawn - After Issue
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- 230000008030 elimination Effects 0.000 claims abstract description 25
- 238000003379 elimination reaction Methods 0.000 claims abstract description 25
- 208000002925 dental caries Diseases 0.000 claims abstract description 4
- 230000003584 silencer Effects 0.000 claims description 35
- 238000011084 recovery Methods 0.000 claims description 22
- 230000005619 thermoelectricity Effects 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 25
- 239000002918 waste heat Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model discloses an exhaust muffler suitable for tail gas is thermoelectric to be retrieved, including the casing that has air inlet and gas vent, connect in the intake pipe of air inlet department, connect the blast pipe in gas vent department, the air current flows into the casing through the intake pipe, flows out from the blast pipe, a tip of casing ab intra dwindles to the outward flange gradually, the air inlet lies in the tip position department of casing, exhaust muffler is still including the thermal -arrest baffle of fixed setting in the casing, the thermal -arrest baffle is with two cavitys of casing internal partitioning one -tenth: thermal -arrest chamber and noise elimination chamber, air inlet intercommunication thermal -arrest chamber, gas vent intercommunication noise elimination chamber, the thermal -arrest chamber is chivalrous seam type, and follows the air current flow direction, and chivalrous seam narrows down gradually, thermal -arrest chamber and noise elimination chamber intercommunication. This exhaust muffler compact structure, the chassis space that occupies is little, can reduce the production of extra backpressure and noise simultaneously to reduce the influence to the exhaust system performance, make it have thermoelectric generation simultaneously and eliminate exhaust noise double effect.
Description
Technical field
This utility model is related to technical field of automobile and in particular to a kind of aerofluxuss being applied to the recovery of tail gas thermoelectricity disappear
Sound device.
Background technology
Currently, the environmental pollution of automobile industry Faced In Sustainable Development and petroleum resources scarcity two hang-ups.With various countries row
Put that regulation is increasingly strict, environmental protection and energy-conservation become the important directions of 21 century automotive technology development.Research shows, orthodox car is sent out
The fuel oil energy only 30% about of motivation is used for driving moment, and remaining about 70% energy is not used effectively, and wherein about 40%
Energy in the air is discharged into tail gas waste heat form, cause huge energy waste and serious environmental pollution.If to this
The in addition secondary utilization of part used heat, then can effectively reduce the fuel consumption of automobile, reduces the pollution to environment.
Thermoelectric generation is the effective way to tail gas waste heat in addition secondary utilization, and it passes through thermo-electric converting material by tail
Used heat in gas is converted into electric energy, and steam supply in-car electric equipment uses, and has movement-less part, noiseless, pollution-free, work can
Lean on, compact conformation, long service life the features such as, low grade heat energy using aspect have uniqueness advantage.Its operation principle
Be using gas exhaust piping as electrothermal module hot junction, cooling water tank is as the cold end of electrothermal module, once automobile normal running, row
Gas used heat just flows into cold end from the hot junction of electrothermal module, and a part of heat energy flowing through electrothermal module is converted into electric energy, realizes temperature
Difference generates electricity.
Vehicle exhaust thermoelectric generation is mainly the high-temperature wall surface of gas exhaust piping as temperature-difference power generation module at present
Hot junction, exhaust waste heat carries out thermo-electric generation by heating wall, and only a small amount of used heat is utilized by wall, most of used heat
Directly drained by gas exhaust piping, the utilization rate of exhaust waste heat is relatively low.In order to improve waste heat recovery efficiency, forefathers devise multiple
Heat collecting tank is improving Heat-collecting effect.Adopt in patent CN201310077133, CN201420772818, CN201420708417
Special heat collecting tank surface, as the hot junction of temperature-difference power generation module, improves Heat-collecting effect, increases hot junction contact area, carries
High exhaust heat organic efficiency.But heat collecting tank volume is larger, a large amount of heat transmission fins are contained in inside, connect as separate part
Both a large amount of chassis space can have been taken after entering gas extraction system, and larger back pressure and noise can have been produced simultaneously, necessarily affect gas extraction system
Performance and car load combination property.Heat collecting tank is typically mounted on the gas exhaust piping before the rear muffler of catalyst converter, disappears
The same volume of sound device is larger, also will take a large amount of chassis space.Due to chassis spaces compact, there is heat collecting tank and exhausting silencer
The installation site contradictory problems of device.
Utility model content
Technical problem to be solved in the utility model is for problem of the prior art, provides a kind of compact conformation, accounts for
Little and the exhaust silencer being applied to the recovery of tail gas thermoelectricity that extra back pressure and noise produce can be reduced with chassis space.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is：
A kind of exhaust silencer being applied to the recovery of tail gas thermoelectricity, including housing, the connection with air inlet and air vent
Air inlet pipe at described air inlet, it is connected to the exhaustor of described exhaust ports, air-flow flows into described shell through described air inlet pipe
Body, flows out from described exhaustor, and the one end of described housing is gradually reduced to outward flange from inside, and described air inlet is located at described
At the little end position of housing, described exhaust silencer also includes the collection heat shield being fixedly installed in described housing, described thermal-arrest
Described enclosure interior is separated into two cavitys by baffle plate：Heat collector cavity and noise elimination cavity, described air inlet connects described heat collector cavity, described
Air vent connects described noise elimination cavity, and described heat collector cavity is in slit-type, and along described air current flow direction, described slit gradually becomes
Narrow, described heat collector cavity is connected with described noise elimination cavity.
Preferably, described exhaust silencer also includes the guiding device for improving air-flow velocity, and described guiding device sets
Put in described thermal-arrest intracavity and at the position of necking of described housing.
Further, described guiding device includes multiple deflectors, and multiple described deflectors are along the flowing perpendicular to air-flow
Direction interval setting.
Further, from described housing central section to outward flange, the length of each described deflector gradually shortens.
Further, from described housing central section to outward flange, between each described deflector and described casing center axis
Angle be gradually increased.
Further, from described housing central section to outward flange, two neighboring described at the described air inlet position is led
The distance between stream plate is gradually increased, away from the distance between the two neighboring described deflector at described air inlet position phase
With.
Further, from described housing central section to outward flange, two neighboring described at the described air inlet position is led
The distance between stream plate is identical, gradually subtracts away from the distance between two neighboring described deflector at described air inlet position
Little.
Further, each described deflector is located along the same line away from the one end of described air inlet.
Further, multiple described deflectors are separately positioned on described housing central section, along along the central axis of described housing
It is symmetrically set in described housing.
Preferably, described collection heat shield extends close to the other end, the end of described heat collector cavity and the institute of described housing
State noise elimination cavity connection.
Due to the utilization of technique scheme, this utility model compared with prior art has following advantages：This practicality is new
The surface of shell of the exhaust silencer being applied to the recovery of tail gas thermoelectricity of type can be used for thermo-electric generation as the hot junction of electrothermal module,
This exhaust silencer itself has the function of eliminating exhaust noise again simultaneously, adds exhaust silencer with the heat collecting tank of prior art
Combination compare, of the present utility model be applied to tail gas thermoelectricity recovery exhaust silencer compact conformation, the chassis space of occupancy
Little, extra back pressure and the generation of noise can be reduced, thus the impact to gas extraction system performance for the reduction is so as to have simultaneously simultaneously
Thermo-electric generation and elimination exhaust noise double effects.
Brief description
Accompanying drawing 1 is the axonometric chart of the exhaust silencer being applied to the recovery of tail gas thermoelectricity of the present utility model；
Accompanying drawing 2 is the front view of the exhaust silencer being applied to the recovery of tail gas thermoelectricity of the present utility model；
Accompanying drawing 3 is the top view of the exhaust silencer being applied to the recovery of tail gas thermoelectricity of the present utility model.
Specific embodiment
Come with specific embodiment below in conjunction with the accompanying drawings the technical solution of the utility model is further elaborated.
Referring to shown in Fig. 1 ~ Fig. 3 be applied to tail gas thermoelectricity recovery exhaust silencer, including housing 1, housing 1 have into
QI KOU and air vent, this exhaust silencer also includes being connected to air inlet pipe 2 at air inlet position, is connected at vent position
Exhaustor 3, air-flow from air inlet pipe 2 flow into housing 1 inside, from exhaustor 3 flow out housing 1.
The one end of housing 1 is gradually reduced to outward flange from inside, and air inlet is located at the one end of the minimum of housing 1.One
Plant specific embodiment, housing 1 has the shape of the cuboid of necking, the length bearing of trend of housing 1 and air-flow in one end
Flow direction identical, the one end that air inlet is located on the length direction of housing 1, i.e. necking end, air vent is located at housing 1
The other end on length direction is it is preferable that air inlet and air vent are located in same rectilinear direction.
This exhaust silencer also includes the collection heat shield 4 being arranged on the inside of housing 1, and collection heat shield 4 is by the inner chamber of housing 1
It is separated into two cavitys：Heat collector cavity 51 and noise elimination cavity 52, heat collector cavity 51 is connected with noise elimination cavity 52, and the air inlet on housing 1 is even
Logical heat collector cavity 51, the air vent connection noise elimination cavity 52 on housing 1, heat collector cavity 51 is in slit-type, so that the space of heat collector cavity 51
Size is less so that the volume of noise elimination cavity 52 is suitable with the volume of housing 1, therefore the addition of heat collector cavity 51 disappears to this exhaust silencer
The impact very little of volume, meanwhile, when heat collector cavity 51 passage is narrow and small, is fully contacted with the surface of housing 1 when air-flow flows through, makes shell
The surface temperature of body 1 raises so that Heat-collecting effect is preferable rapidly.
Because when air-flow has just flowed into heat collector cavity 51, temperature is higher, in flow process, temperature is gradually lowered, for making collection thermal effect
Fruit is consistent on air current flow direction, and along air current flow direction, slit becomes narrow gradually, so that housing 1 upper and lower surface
Temperature streamwise be evenly distributed.
In the present embodiment, the area of the upper and lower surface of housing 1 is more than the area of its front and rear surfaces, therefore by electrothermal module
It is arranged on the heat that housing 1 upper and lower surface is absorbed on the upper and lower surface of housing 1 to be generated electricity, realize returning of residual heat of tail gas of automobile
Receive and utilize.Therefore collection heat shield 4 forms slit respectively and the upper and lower surface of housing 1 between, before and after collection heat shield 4, both sides are solid respectively
Surely it is connected on the both sides in front and back of housing 1.
Noise elimination cavity 52 is not the cavity of a hollow, and its specific internal structure can be carried out according to specific noise elimination requirement
Set, it would however also be possible to employ the structure of noise elimination cavity of the prior art.
For making the noise elimination cavity 52 of this exhaust silencer noise elimination cavity of any one acoustic filter be applied to prior art
Structure, collection heat shield 4 extends close to the other end on the length direction of housing 1, and makes heat collector cavity 51 remove end and noise elimination
Chamber 52 is connected outer, remaining position heat collector cavity 51 and the respective independence of noise elimination cavity 52, not connected.
This exhaust silencer also includes the guiding device for improving air flow rate, and guiding device is arranged on heat collector cavity
In 51, and at the position of necking of housing 1, guiding device includes multiple deflectors, and multiple deflectors are along perpendicular to air-flow
Flow direction interval setting successively.
A kind of specific embodiment, deflector include the first deflector 61, the second deflector 62, the 3rd deflector 63,
Four deflectors 64, the 5th deflector 65, the 6th deflector 66, the 7th deflector 67, the first deflector 61 is along the central shaft of housing 1
The bearing of trend of line is extended, and the second deflector 62, the 3rd deflector 63, the 4th deflector 64 are located at the first deflector respectively
61 side, and from the center of housing 1 to outward flange successively interval setting, the 5th deflector 65, the 6th deflector the 66, the 7th are led
Stream plate 67 is located at the opposite side of the first deflector 61 respectively, and from the center of housing 1 to outward flange successively interval setting.First leads
The length of stream plate 61 is the longest, and the second deflector 62, the 3rd deflector 63, the length of the 4th deflector 64 are gradually reduced, and and shell
Angle between the central axis of body 1 is gradually increased；5th deflector 65, the 6th deflector 66, the length of the 7th deflector 67
Gradually less, and the angle and the central axis of housing 1 between is gradually increased, the first deflector 61, the second deflector the 62, the 3rd
Deflector 63, the 4th deflector 64, the 5th deflector 65, the 6th deflector 66, the 7th deflector 67 are away from one end of air inlet
Portion is located along the same line.
For making heat collector cavity 51 interior air-flow flow velocity evenly, from the middle part of housing 1 to outward flange, at air inlet position
The distance between the one end of two neighboring deflector be gradually increased, away from the two neighboring deflector at air inlet position
The distance between one end is identical；Or, from the middle part of housing 1 to outward flange, two neighboring at air inlet position is led
The distance between one end of stream plate is identical, away from the distance between one end of two neighboring deflector at air inlet position
It is gradually reduced.
Preferably, the second deflector 62 and the 5th deflector 65 are symmetrical arranged, the 3rd deflector 63 and the 6th deflector 66
It is symmetrical arranged, the 4th deflector 64 and the 7th deflector 67 are symmetrical arranged.
During the work of this exhaust silencer, air-flow flows into housing 1 from air inlet pipe 2, after running into collection heat shield 4, is divided into
Lower two strands, flow along heat collector cavity 51.In heat collector cavity 51, air-flow initially encounters guiding device, makes the gas within heat collector cavity 51
Stream velocity flow profile becomes uniform, and then uniform air-flow, along the slit flowing between housing 1 and collection heat shield 4, keeps off in thermal-arrest
Plate 4 end is flowed out, and enters noise elimination cavity 52, eliminates exhaust noise inside noise elimination cavity 52, and last air-flow is discharged from exhaustor 3.
The exhaust silencer that this is applied to the recovery of tail gas thermoelectricity can be used for thermo-electric generation as the hot junction of electrothermal module, simultaneously
This exhaust silencer itself has the function of eliminating exhaust noise again, adds the group of exhaust silencer with the heat collecting tank of prior art
Conjunction is compared, this exhaust silencer compact conformation, and the chassis space of occupancy is little；And when air-flow flows into heat collector cavity, due to being collection
Hot chamber is divergent structure, and middle part flow velocity is higher, and two ends flow velocity is relatively low, makes the vertical direction of flowing by the setting of guiding device
Overdraught flow velocity becomes uniform, thus the uniformity of the temperature of the upper and lower surface of housing along flowing vertical direction can be ensured；Meanwhile,
Using slit and the version that becomes narrow gradually makes the Temperature Distribution of the upper and lower surface of housing evenly to heat collector cavity, also not simultaneously
The sound deadening capacity of impact acoustic filter, so, the upper and lower surface of housing as the hot junction of electrothermal module, hot-side temperature distribution uniform
Property, the work efficiency of electrothermal module can be improved, reduce the damage to electrothermal module, thus improving the performance of thermo-electric generation and making
Use the life-span.In addition, inside this heat collector cavity in addition to guiding device, not adding thermal-arrest fin, the extra noise of generation and flowing resistance
Power reduces, thus reducing the impact to gas extraction system performance.
Above-described embodiment is only that technology design of the present utility model and feature are described, its object is to allow and is familiar with technique
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalence changes made according to this utility model spirit or modification, all should cover protection domain of the present utility model it
Interior.
Claims (10)
1. a kind of exhaust silencer being applied to the recovery of tail gas thermoelectricity, including having the housing of air inlet and air vent, be connected to
Air inlet pipe at described air inlet, it is connected to the exhaustor of described exhaust ports, air-flow flows into described housing through described air inlet pipe,
From described exhaustor flow out it is characterised in that：The one end of described housing is gradually reduced to outward flange from inside, described air inlet
At the little end position of described housing, described exhaust silencer also includes the collection heat shield being fixedly installed in described housing,
Described enclosure interior is separated into two cavitys by described collection heat shield：Heat collector cavity and noise elimination cavity, described air inlet connects described collection
Hot chamber, described air vent connects described noise elimination cavity, and described heat collector cavity is in slit-type, and along described air current flow direction, described narrow
Seam becomes narrow gradually, and described heat collector cavity is connected with described noise elimination cavity.
2. according to claim 1 be applied to tail gas thermoelectricity recovery exhaust silencer it is characterised in that：Described aerofluxuss disappear
Sound device also includes the guiding device for improving air-flow velocity, and described guiding device is arranged on described thermal-arrest intracavity and is located at described
At the position of the necking of housing.
3. according to claim 2 be applied to tail gas thermoelectricity recovery exhaust silencer it is characterised in that：Described water conservancy diversion dress
Put including multiple deflectors, multiple described deflectors are along the flow direction interval setting perpendicular to air-flow.
4. according to claim 3 be applied to tail gas thermoelectricity recovery exhaust silencer it is characterised in that：From described housing
Outward flange is arrived at middle part, and the length of each described deflector gradually shortens.
5. according to claim 3 be applied to tail gas thermoelectricity recovery exhaust silencer it is characterised in that：From described housing
Outward flange is arrived at middle part, and the angle between each described deflector and described casing center axis is gradually increased.
6. according to claim 3 be applied to tail gas thermoelectricity recovery exhaust silencer it is characterised in that：From described housing
Outward flange is arrived at middle part, and the distance between two neighboring described deflector at described air inlet position is gradually increased, away from
The distance between two neighboring described deflector at described air inlet position is identical.
7. according to claim 3 be applied to tail gas thermoelectricity recovery exhaust silencer it is characterised in that：From described housing
Outward flange is arrived at middle part, and the distance between two neighboring described deflector at described air inlet position is identical, away from described
The distance between two neighboring described deflector at air inlet position is gradually reduced.
8. according to claim 3 be applied to tail gas thermoelectricity recovery exhaust silencer it is characterised in that：Lead described in each
Stream plate is located along the same line away from the one end of described air inlet.
9. according to claim 3 be applied to tail gas thermoelectricity recovery exhaust silencer it is characterised in that：Multiple described lead
Stream plate is separately positioned on described housing central section, is symmetrically set in described housing along along the central axis of described housing.
10. according to claim 1 be applied to tail gas thermoelectricity recovery exhaust silencer it is characterised in that：Described thermal-arrest
Baffle plate extends close to the other end of described housing, and the end of described heat collector cavity is connected with described noise elimination cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620825171.2U CN205977350U (en) | 2016-08-02 | 2016-08-02 | Exhaust muffler suitable for tail gas is thermoelectric to be retrieved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620825171.2U CN205977350U (en) | 2016-08-02 | 2016-08-02 | Exhaust muffler suitable for tail gas is thermoelectric to be retrieved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977350U true CN205977350U (en) | 2017-02-22 |
Family
ID=58028987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620825171.2U Withdrawn - After Issue CN205977350U (en) | 2016-08-02 | 2016-08-02 | Exhaust muffler suitable for tail gas is thermoelectric to be retrieved |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050375A (en) * | 2016-08-02 | 2016-10-26 | 清华大学苏州汽车研究院（相城） | Exhaust silencer suitable for thermoelectric recovery of tail gases |
-
2016
- 2016-08-02 CN CN201620825171.2U patent/CN205977350U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050375A (en) * | 2016-08-02 | 2016-10-26 | 清华大学苏州汽车研究院（相城） | Exhaust silencer suitable for thermoelectric recovery of tail gases |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170222 Effective date of abandoning: 20190122 |