CN205349486U - Vehicle vent -pipe who makes an uproar falls in heat preservation - Google Patents
Vehicle vent -pipe who makes an uproar falls in heat preservation Download PDFInfo
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- CN205349486U CN205349486U CN201521061285.6U CN201521061285U CN205349486U CN 205349486 U CN205349486 U CN 205349486U CN 201521061285 U CN201521061285 U CN 201521061285U CN 205349486 U CN205349486 U CN 205349486U
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- exhaust pipe
- noise reduction
- pipe shaft
- layer
- foil
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Abstract
The utility model relates to a vehicle vent -pipe who makes an uproar falls in heat preservation, it is including the exhaust pipe shaft, the outside cladding of exhaust pipe shaft has the insulation material layer, the insulation material layer includes heat preservation cotton layer, thermal -insulated bandage layer and thermal -insulated steel foil layer, heat preservation cotton layer hug closely in the exhaust pipe shaft the outer wall and with zero clearance between the outer wall of exhaust pipe shaft, bind through thermal -insulated bandage parcel heat preservation cotton layer's outside, the direct cladding in thermal -insulated steel foil layer in thermal -insulated bandage is outside, every section the both ends on hot steel foil layer are all matchd to weld and are equipped with the end cover. The utility model has advantages of simple and reasonable structure design, heat preservation the noise reduction effect is good, can protect power supply circuit, pipeline, reduces the automobile body temperature, improves the catalytic converter temperature, the extension vehicle operation life -span.
Description
Technical field
This utility model relates to a kind of technical field of automobile parts, particularly relates to a kind of automobile exhaust pipe being incubated noise reduction.
Background technology
The effect of commercial vehicle exhaustor before this only has the function discharging tail gas.What this field heat insulation was paid close attention to is little, and its function can only meet commercial car state III discharge standard.Raising along with environmental protection requirement; the exhaust emissions of automobile is required also day by day harsh; therefore countries in the world and area all priorities have formulated the new standard optimizing motor vehicle exhaust emission, and the European standard that wherein European Union's tissue (EU) formulates is a most countries and the reference standard of area execution.Commercial car is also implemented state four discharge standard from January 1st, 2015 by China.In China, commercial car, for reaching state more than four emission request, mostly have employed SCR post-processing technology.And SCR post-processing technology, the transformation efficiency of its catalytic converter is closely related with delivery temperature, particularly electromotor be in idling mode or exhaust pipe long time, when delivery temperature can be caused to arrive catalytic converter, delivery temperature decline is too fast, catalytic converter temperature is too low, thus causing tail gas catalyzed transformation efficiency not reach standard-required, the discharge of car load also cannot reach standard-required.Therefore, how to ensure to be arrived the delivery temperature loss reduction of catalytic converter by exhaustor, with regard to the problem becoming commercial car car load factory and exhaustor producer must solve.
Current domestic car load manufacturer Xia work machinery, kinglong coach, Guangzhou Automobile Workshop's passenger vehicle, bus ANKAI, the hundred good passenger vehicles in tunnel, Cummins Engine, Yuchai, upper bavin electromotor etc., external manufacturer woods moral fork truck, Manny leads to fork truck, the parcel that the materials such as what Te Ruibao group etc. all adopted is silica gel cloth, fire-resistance cloth carry out, the defects such as outward appearance fold, wraps up appearance poor, poor thermal insulation property, it is badly in need of a kind of high insulating effect, the heat preservation method that effect is attractive in appearance.
Summary of the invention
For the problems referred to above, it is simple, reasonable that this utility model provides a kind of structural design, high insulating effect; power circuit, pipeline can be protected, reduce vehicle body temperature, improve catalytic converter temperature; excellent noise reduction effect, can extend the automobile exhaust pipe of the insulation noise reduction of vehicle service life.
This utility model is achieved through the following technical solutions:
The automobile exhaust pipe of above-mentioned insulation noise reduction, including aerofluxus pipe shaft；It is coated with adiabator layer outside described aerofluxus pipe shaft；Described adiabator layer includes heat-preservation cotton layer, heat insulation bandage layer and thermal insulating steel layers of foil；Described heat-preservation cotton layer be close to described aerofluxus pipe shaft outer wall and and the outer wall of described aerofluxus pipe shaft between gapless；The outside of described heat-preservation cotton layer is by the parcel binding of heat insulation bandage；Described thermal insulating steel layers of foil is directly coated on outside described heat insulation bandage, and the end cap that has been welded all is mated at the two ends of every section of described thermal insulating steel layers of foil.
The automobile exhaust pipe of described insulation noise reduction, wherein: all pass through to be welded and fixed between adjacent described thermal insulating steel layers of foil and between adjacent described thermal insulating steel layers of foil and aerofluxus pipe shaft.
The automobile exhaust pipe of described insulation noise reduction, wherein: described thermal insulating steel layers of foil is thickness 0.15mm and the stainless steel foil processed through polishing.
The automobile exhaust pipe of described insulation noise reduction, wherein: the thickness of described heat-preservation cotton layer is 10mm ~ 20mm, density is 100-150kg/m3.
The automobile exhaust pipe of described insulation noise reduction, wherein: described adiabator layer can be coated with the aerofluxus pipe shaft of φ 32mm ~ φ 159mm.
The automobile exhaust pipe of described insulation noise reduction, wherein: the outer wall of described end cap stretches out and extension is provided with pilot hole.
The automobile exhaust pipe of described insulation noise reduction, wherein: described aerofluxus pipe shaft is to be formed by connecting by welded seal by multistage straight tube and bend pipe.
Beneficial effect:
The automobile exhaust pipe of this utility model insulation noise reduction is by arranging the heat-insulation layer parcel to gas exhaust piping, it is possible to suppress engine exhaust gas temperature rapid decay, makes waste gas enter the temperature of preprocessor higher than catalytic reaction initial temperature, strengthens the reactivity of catalyst；And structural design is simple, reasonable, during electromotor work, the waste gas of generation flows through exhaustor, and heat insulation material is isolated, and can reduce Tail Pipe Temperature loss, improves catalyst converter under each engine operating condition, the temperature of vehicle exhaust entrance catalyst；Simultaneously exhaustor surface temperature reduces, and protects power circuit, pipeline, reduces vehicle body temperature, extends vehicle service life, and adiabator layer itself also has and reduces vehicle exhaust and flow in exhaustor and the function that produces radiated noise；Exhaustor of the present utility model has insulation, heat insulation, anti-acoustic capability, and this type of exhaustor can cover the exhaustor of all diameter specifications on market.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of the automobile exhaust pipe of this utility model insulation noise reduction；
Fig. 2 is another surface structure schematic diagram of the automobile exhaust pipe of this utility model insulation noise reduction；
Fig. 3 is the axial sectional view of the automobile exhaust pipe of this utility model insulation noise reduction；
Fig. 4 is the radial cross-section of the automobile exhaust pipe of this utility model insulation noise reduction；
Fig. 5 is the structural representation of the end cap of the automobile exhaust pipe of this utility model insulation noise reduction；
Fig. 6 is the internal air temperature loss curve chart of the automobile exhaust pipe of this utility model insulation noise reduction.
Note: the insulating thickness that in Fig. 6, three curves represent from top to bottom successively is 0mm, 10mm, 20mm.
Detailed description of the invention
As shown in Figures 1 to 6, the automobile exhaust pipe of this utility model insulation noise reduction, including aerofluxus pipe shaft 1 and adiabator layer 2.
This aerofluxus pipe shaft 1 is to be formed by connecting by welded seal by multistage straight tube and bend pipe.
It is outside that this adiabator layer 2 is coated on this aerofluxus pipe shaft 1, and it includes heat-preservation cotton layer 21, heat insulation bandage layer 22 and thermal insulating steel layers of foil 23；This heat-preservation cotton layer 21 is directly coated on the outer wall of this aerofluxus pipe shaft 1, its be close to aerofluxus pipe shaft 1 outer wall and and aerofluxus pipe shaft 1 between gapless；This heat-preservation cotton layer 21 is outside by the parcel binding of heat insulation bandage 22；This adiabator layer 2 can be coated with the aerofluxus pipe shaft 1 of φ 32 ~ φ 159mm, and heat-preservation cotton layer 21 thickness is 10mm ~ 20mm.It is outside that this thermal insulating steel layers of foil 23 is directly coated on heat insulation bandage 22, and this thermal insulating steel layers of foil 23 is thickness 0.15mm and the stainless steel foil processed through polishing.Wherein, the small end cover 3 of the corresponding size that is welded all is mated at the two ends of every section of thermal insulating steel layers of foil 23, to ensure good sealing；The outer wall of this end cap 3 stretches out and extension is provided with in pilot hole 31(the present embodiment the outer wall of this end cap 3 and is uniformly provided with four extensions, and four extensions are equipped with pilot hole 31.)；Meanwhile, all pass through to be welded and fixed between adjacent thermal insulating steel layers of foil 23 and between adjacent thermal insulating steel layers of foil 23 and aerofluxus pipe shaft 1, to ensure that heat-preservation cotton layer 21 is in a cavity sealed, and reaches effect of heat insulation.
In the present embodiment, this adiabator layer 2 mainly includes 6 sections of straight length portion, 3 elbow parts and 6 small end cover parts.In the present embodiment, this adiabator layer 2 heatproof is not less than 650 °, and anti-flammability is A level, meets GB8624-2006S, and heat conductivity is not more than 0.098w/m.k.
The use principle of the automobile exhaust pipe of this utility model insulation noise reduction:
During electromotor work, the waste gas produced flows through aerofluxus pipe shaft 1, originally being distributed by aerofluxus pipe shaft 1 and isolates to extraneous heat insulation material layer 2, reducing Tail Pipe Temperature loss thus playing, improving catalyst converter under each engine operating condition, vehicle exhaust enters the temperature of catalyst；Exhaustor surface temperature reduces simultaneously, can protect power circuit, pipeline, reduces vehicle body temperature, extends vehicle service life；Adiabator layer 2 also has and reduces vehicle exhaust and flow in exhaustor and produce the function of radiated noise.
By the temperature field result at ambient temperature 15 DEG C, exhaustor of the present utility model tested, as shown in table 1.
The temperature field of test at table 1 ambient temperature 15 DEG C
In the test data of upper table, heat source temperature 450 degree, the insulating tube temperature of insulating thickness 10mm and insulating thickness 20mm declines basically identical, and the Tail Pipe Temperature decline curve without lapping is obvious, illustrates that the exhaustor with insulation material can be good at playing heat insulation effect.Playing on the one hand and avoid high temperature to affect pipeline, oil circuit, reduce aging speed, still further aspect also acts insulation effect, by the parcel to gas exhaust piping, it is possible to improve the temperature of preprocessor, strengthen the activity of catalyst, improve reaction temperature, reduce discharged nitrous oxides, be beneficial to and meet laws and regulations requirement.
This utility model structural design is simple, reasonable, and high insulating effect can effectively reduce exhaustor surface temperature, and then protect power circuit, pipeline, reduce vehicle body temperature, extend vehicle service life, is suitable to promote and application.
Claims (7)
1. it is incubated an automobile exhaust pipe for noise reduction, including aerofluxus pipe shaft；It is characterized in that: outside described aerofluxus pipe shaft, be coated with adiabator layer；Described adiabator layer includes heat-preservation cotton layer, heat insulation bandage layer and thermal insulating steel layers of foil；Described heat-preservation cotton layer be close to described aerofluxus pipe shaft outer wall and and the outer wall of described aerofluxus pipe shaft between gapless；The outside of described heat-preservation cotton layer is by the parcel binding of heat insulation bandage；Described thermal insulating steel layers of foil is directly coated on outside described heat insulation bandage, and the end cap that has been welded all is mated at the two ends of every section of described thermal insulating steel layers of foil.
2. the automobile exhaust pipe being incubated noise reduction as claimed in claim 1, it is characterised in that: all pass through to be welded and fixed between adjacent described thermal insulating steel layers of foil and between adjacent described thermal insulating steel layers of foil and aerofluxus pipe shaft.
3. the automobile exhaust pipe being incubated noise reduction as claimed in claim 1, it is characterised in that: described thermal insulating steel layers of foil is thickness 0.15mm and the stainless steel foil processed through polishing.
4. the automobile exhaust pipe being incubated noise reduction as claimed in claim 1, it is characterised in that: the thickness of described heat-preservation cotton layer is 10mm ~ 20mm, and density is 100-150kg/m3.
5. the automobile exhaust pipe being incubated noise reduction as claimed in claim 1, it is characterised in that: described adiabator layer can be coated with the aerofluxus pipe shaft of φ 32mm ~ φ 159mm.
6. the automobile exhaust pipe being incubated noise reduction as claimed in claim 1, it is characterised in that: the outer wall of described end cap stretches out and extension is provided with pilot hole.
7. the automobile exhaust pipe being incubated noise reduction as claimed in claim 1, it is characterised in that: described aerofluxus pipe shaft is to be formed by connecting by welded seal by multistage straight tube and bend pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521061285.6U CN205349486U (en) | 2015-12-18 | 2015-12-18 | Vehicle vent -pipe who makes an uproar falls in heat preservation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521061285.6U CN205349486U (en) | 2015-12-18 | 2015-12-18 | Vehicle vent -pipe who makes an uproar falls in heat preservation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205349486U true CN205349486U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521061285.6U Active CN205349486U (en) | 2015-12-18 | 2015-12-18 | Vehicle vent -pipe who makes an uproar falls in heat preservation |
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| CN (1) | CN205349486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386842A (en) * | 2015-12-18 | 2016-03-09 | 万向通达股份公司 | Heat preservation and noise reduction automobile exhaust pipe |
-
2015
- 2015-12-18 CN CN201521061285.6U patent/CN205349486U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386842A (en) * | 2015-12-18 | 2016-03-09 | 万向通达股份公司 | Heat preservation and noise reduction automobile exhaust pipe |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |