CN201574813U - Combined exhaust pipe heat insulation sleeve - Google Patents
Combined exhaust pipe heat insulation sleeve Download PDFInfo
- Publication number
- CN201574813U CN201574813U CN200920289528XU CN200920289528U CN201574813U CN 201574813 U CN201574813 U CN 201574813U CN 200920289528X U CN200920289528X U CN 200920289528XU CN 200920289528 U CN200920289528 U CN 200920289528U CN 201574813 U CN201574813 U CN 201574813U
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- China
- Prior art keywords
- bellows
- liner
- end cap
- joint
- combined type
- 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.)
- Expired - Lifetime
Links
- 238000009413 insulation Methods 0.000 title claims description 42
- 239000005030 aluminium foil Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 229920000742 Cotton Polymers 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 7
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- 239000011152 fibreglass Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 3
- 239000012784 inorganic fiber Substances 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 239000011253 protective coating Substances 0.000 description 7
- 239000004744 fabric Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 239000010425 asbestos Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000030279 gene silencing Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Exhaust Silencers (AREA)
- Joints Allowing Movement (AREA)
Abstract
The utility model provides a modular blast pipe radiation shield casing, specifically is applicable to automobile engine's exhaust, includes the inside lining of outer bellows, inlayer and sets up the fixed end cover at the radiation shield casing both ends, the internal surface of bellows cooperatees with the surface of inside lining, the surface of bellows cooperatees with the inboard of fixed end cover, the bellows is composite construction, and the bellows skin adopts the aluminium foil to make, and the bellows inlayer adopts the glass fiber material to make, the inside lining adopts inorganic fiber cotton thermal insulation material to make, be provided with the inside lining joint-cutting along the axial on the inside lining, be provided with the bellows joint-cutting along the axial on the bellows. The utility model discloses not only thermal-insulated effect is better, insulating layer surface temperature is lower, and occupation space is less moreover, the installation is arranged simply, be difficult for droing, the reliability is higher.
Description
Technical field
The utility model relates to a kind of collet, relates in particular to a kind of combined type exhaust insulation cover, specifically is applicable to the gas discharge pipe system of motor car engine.
Background technique
Continuous lifting along with automotive Diesel engine power, the entrained heat of the waste gas that motor is discharged is also increasing, most of heat wherein distributes through outlet pipe with waste gas, the concrete approach that distributes is a suction tude before suction tude behind the silencing apparatus, metallic hose and the silencing apparatus, but behind silencing apparatus, be scattered with the parts such as nonmetal pipeline of non-refractory in the approach zone of suction tude and preceding air inlet pipeline, their meetings are reduction of service life because being subjected to the bigger thermal radiation of gas discharge pipe system, therefore need carry out heat insulation processing to the corresponding position of gas discharge pipe system.
At present, the heat insulation mode that is applied to automobile engine exhaust pipe mainly contains metal baffle form of thermal insulation and asbestos or glass cloth and swathes two kinds of form of thermal insulation.The heat insulation high-power vehicular engine of China that mostly is of metal baffle adopts, and this device need be provided with support specially so that metal baffle to be installed, and it is bigger to take up room, difficulty in installation and layout, and effect of heat insulation is poor.Asbestos or glass cloth swathe form of thermal insulation, mainly are that internal layer adopts asbestos or glass cloth thermal-protective coating to swathe along outlet pipe, and the external application protective coating forms.Because the engine compartment space is narrow and small, the fitting operation manufacturability is bad, and inner thermal-protective coating is became uneven usually, and outer covering layer bears external impacts or embrittlement, breakage easily take place in aging back.Directly cause the effect of heat insulation of this kind form of thermal insulation relatively poor, the thermal-protective coating surface temperature is higher, functional reliability is low and easily come off inefficacy.
Summary of the invention
The purpose of this utility model be overcome that taking up room of existing in the prior art is big, difficulty in installation and layout, easily come off inefficacys, effect of heat insulation is relatively poor and the thermal-protective coating surface temperature is higher defective and problem, provide a kind of take up room less, mounting arrangements simple, difficult drop-off, effect of heat insulation is better and the lower combined type exhaust insulation cover of thermal-protective coating surface temperature.
For realizing above purpose, technical solution of the present utility model is: a kind of combined type exhaust insulation cover, the fixedly end cap that described collet comprises the liner of outer field bellows, internal layer and is arranged on the collet two ends, the internal surface of described bellows matches with the outer surface of liner, and the outer surface of described bellows matches with the fixing inboard of end cap.
Described bellows is a composite structure, and the outer aluminium foil that adopts of bellows is made, and the bellows internal layer adopts fiber glass material to make.
Described liner adopts the cotton thermal-protective material of inorfil to make.
Described liner adopts glass fibre to make.
Be provided with the liner joint-cutting on the described liner vertically, be provided with the bellows joint-cutting on the described bellows vertically, the opening direction of bellows joint-cutting is towards ground, and the angle between liner joint-cutting and the bellows joint-cutting is more than or equal to 90 degree.
Be set with clip on the outer cylinder surface of described bellows.
Described fixedly end cap comprises the upper end cap and the lower end cap of paired opening structure, upper end cap and lower end cap are Z type ledge structure, one end of this structure matches with the outer surface of bellows, and the other end matches with the outlet pipe outer surface, and it is provided with the flange connector that can insert construction bolt.
Compared with prior art, the beneficial effects of the utility model are:
1. because a kind of combined type exhaust insulation of the utility model nested structure is simple, can be before the outlet pipe general assembly during installation suit, positioning and locking as requested during general assembly need not to design special fixed support, it is less therefore to take up room; Described aluminium foil bellows or aluminium foil, the composite corrugated pipe of glass cloth possess certain flexibility again when having higher-strength, can curve in any direction to adapt to the bend pipe that difference curves angle, and mounting arrangements is convenient, flexible; Described liner is generally the cotton heat insulating tube of glass, or it is alternative according to the glass cotton blanket of heat insulation requirement employing suitable thickness, the cotton distinctive flexibility of glass makes that liner can be by the diameter of the diameter typing liner of different outlet pipes, even can cut arbitrarily liner according to required heat insulation environment requirement; The axial joint-cutting that is provided with on described bellows and the liner can make installation or removal of the present utility model carry out under the condition of not disassembling the engine exhaust pipeline; The opposite opened structure of described end cap can make end cap rely on construction bolt and exhaust tube wall fastening, and installs and fixes flexible.Therefore the utility model not only simple in structure, take up room lessly, and mounting arrangements is simple, wide accommodation.
2. because a kind of combined type exhaust insulation of the utility model overlaps the outer field composite corrugated pipe of aluminium foil glass cloth and liner has all used inorganic fibers heat-resisting and that heat-shielding performance is good, the heat resisting temperature of this kind material is not less than 700 ℃, thermal conductivity is low, can effectively reduce the heat load of structure; Simultaneously, the bellows that covers outward is that line contacts with liner, has the space between the two, adds the reflection of aluminium foil to heat of high temperature itself, has strengthened collet overall heat insulation effect; In addition, fixedly the effect of protection and isolation is played at all right effectively two ends of closing composite type collet of end cap, temperature measurement result shows, when sealing thermal environment temperature reached 200 ℃, stable back collet hull-skin temperature only was about 54 ℃, to satisfy heat insulation requirement fully.Therefore the utility model effect of heat insulation is better, the thermal-protective coating surface temperature is lower,
3. because a kind of combined type exhaust insulation of the utility model cover is made of bellows and liner, and what not only reduced to install takes up room, and avoided the Steel Support installed in the prior art.Therefore the utility model has alleviated the weight of heat-proof device assembly.
Since a kind of combined type exhaust insulation of the utility model to overlap outer field bellows heat-resisting, corrosion-resistant, has higher-strength simultaneously, can resist certain external impacts, effectively avoided extraneous moisture, the erosion of greasy dirt and dust, avoided flying upward of inner lining material short fibre simultaneously, prolonged the operating life of combined heat-insulated cover, make collet integral body have higher reliability, the test vehicle of the combined type exhaust insulation cover that the utility model provides has been installed, through 10,000 kilometers actual road tests, check in the process and after the off-test, heating does not appear in the nonmetal pipeline of approach area of insulation, deliquescing and deterioration phenomenon, loose and obscission does not appear in combined heat-insulated cover itself yet, and it is good that state keeps.Therefore the utility model is installed firm, difficult drop-off.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the sectional view of A-A direction among Fig. 1.
Among the figure: bellows 1, bellows skin 11, bellows internal layer 12, liner 2, fixedly end cap 3, upper end cap 31, lower end cap 32, liner joint-cutting 4, bellows joint-cutting 5, construction bolt 6, flange connector 7, clip 8.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is described in further detail
Referring to Fig. 1 one Fig. 2, a kind of combined type exhaust insulation cover, described collet comprises the liner 2 of outer field bellows 1, internal layer and the fixedly end cap 3 that is arranged on the collet two ends, the internal surface of described bellows 1 matches with the outer surface of liner 2, and the outer surface of described bellows 1 matches with the fixing inboard of end cap 3.
Described bellows 1 is a composite structure, and bellows outer 11 adopts aluminium foil to make, and bellows internal layer 12 adopts fiber glass material to make.
Described liner 2 adopts the cotton thermal-protective material of inorfil to make.
Described liner 2 adopts glass fibre to make.
Be provided with liner joint-cutting 4 vertically on the described liner 2, be provided with bellows joint-cutting 5 vertically on the described bellows 1, the opening direction of bellows joint-cutting 5 is towards ground, and the angle between liner joint-cutting 4 and the bellows joint-cutting 5 is more than or equal to 90 degree.
Be set with clip 8 on the outer cylinder surface of described bellows 1.
Described fixedly end cap 3 comprises the upper end cap 31 and lower end cap 32 of paired opening structure, upper end cap 31 is Z type ledge structure with lower end cap 32, one end of this structure matches with the outer surface of bellows 1, the other end matches with the outlet pipe outer surface, and it is provided with the flange connector 7 that can insert construction bolt 6.
The skin of described aluminium foil, fiber composite bellows 1 is the lightweight aluminium foil, and internal layer is a fiber glass material, and compression moulding is aluminium foil, fiber composite bellows 1 after inorganic glue is bonding.The material of described liner 2 both can be the heat insulation cellucotton pipe of typing, also can be to have certain thickness unshaped inorfil cotton blanket, and unshaped inorfil cotton blanket can be adapted to the heat insulation of any bend pipe; Described fixedly end cap 3 is by the sheetmetal punching press or is welded, and is matched with the outer surface of outlet pipe.
During installation, draw back liner joint-cutting 4 with hand or instrument, liner 2 is fitted on the outlet pipe, and then adopt to use the same method bellows 1 is fitted on the outer surface of liner 2, wherein, the opening direction of bellows joint-cutting 5 is towards ground, the opening of liner joint-cutting 4 becomes the above angle of 90 degree with it, buckle at the collet two ends then fixedly end cap 3 and with construction bolt 6 casees tightly so that collet fit snugly on the outlet pipe, for guaranteeing the reliability of collet, at last can be at the middle part of the outer cylinder surface of bellows 1, along pipe range a T type clip 8 and locking are installed, the whole erection process is simple and convenient, need not to dismantle engine exhaust pipe, and any fixed support, flexible arrangement need be set, fixing reliable.
After the combined type exhaust insulation cover that the utility model provides has been installed, because of combined type exhaust insulation cover independent stationary on tube wall, cancelled the thermal baffle fixed support, make heat-proof device compact more, reduce device and taken up room, alleviated the weight of heat-proof device, improved effect of heat insulation.Temperature measurement result shows that when the exhaust tube wall temperature reached 220 ℃, stable back collet hull-skin temperature was about 64 ℃, satisfies the heat insulation requirement of design.
Embodiment:
Test vehicle: east wind sky dragon D310
Outlet pipe diameter: φ 89
Test roads: unrestrained river, Xiangfan, Baokang
Distance travelled: 10,000 kilometers
The experimental technique scheme:
The utility model adopts E type glass fibre to finalize the design cotton pipe as the thermal-protective material of liner 2, adopts the composite corrugated pipe of aluminium foil and glass cloth 1 as outer covering layer, adopts the welding of 08AL steel plate to make fixedly end cap 3.
Test result:
Through 10,000 kilometers actual road tests, check that heating, deliquescing and deterioration phenomenon do not appear in the nonmetal pipeline of approach area of insulation in the process and after the off-test, loose and obscission does not appear in combined heat-insulated cover itself yet, and it is good that state keeps.
Test data sees the following form:
Claims (7)
1. combined type exhaust insulation cover, it is characterized in that: described collet comprises the liner (2) of outer field bellows (1), internal layer and the fixedly end cap (3) that is arranged on the collet two ends, the internal surface of described bellows (1) matches with the outer surface of liner (2), and the outer surface of described bellows (1) matches with the fixing inboard of end cap (3).
2. a kind of combined type exhaust insulation cover according to claim 1 is characterized in that: described bellows (1) is a composite structure, and bellows skin (11) adopts aluminium foil to make, and bellows internal layer (12) adopts fiber glass material to make.
3. a kind of combined type exhaust insulation cover according to claim 1 and 2 is characterized in that: described liner (2) adopts the cotton thermal-protective material of inorfil to make.
4. a kind of combined type exhaust insulation cover according to claim 3 is characterized in that: described liner (2) adopts glass fibre to make.
5. a kind of combined type exhaust insulation cover according to claim 1 and 2, it is characterized in that: be provided with liner joint-cutting (4) on the described liner (2) vertically, be provided with bellows joint-cutting (5) on the described bellows (1) vertically, the opening direction of bellows joint-cutting (5) is towards ground, and the angle between liner joint-cutting (4) and the bellows joint-cutting (5) is more than or equal to 90 degree.
6. a kind of combined type exhaust insulation cover according to claim 1 and 2 is characterized in that: be set with clip (8) on the outer cylinder surface of described bellows (1).
7. a kind of combined type exhaust insulation cover according to claim 1 and 2, it is characterized in that: described fixedly end cap (3) comprises the upper end cap (31) and lower end cap (32) of paired opening structure, upper end cap (31) is Z type ledge structure with lower end cap (32), one end of this structure matches with the outer surface of bellows (1), the other end matches with the outlet pipe outer surface, and it is provided with the flange connector (7) that can insert construction bolt (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920289528XU CN201574813U (en) | 2009-12-24 | 2009-12-24 | Combined exhaust pipe heat insulation sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920289528XU CN201574813U (en) | 2009-12-24 | 2009-12-24 | Combined exhaust pipe heat insulation sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201574813U true CN201574813U (en) | 2010-09-08 |
Family
ID=42694689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920289528XU Expired - Lifetime CN201574813U (en) | 2009-12-24 | 2009-12-24 | Combined exhaust pipe heat insulation sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201574813U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114162A (en) * | 2015-09-08 | 2015-12-02 | 力帆实业(集团)股份有限公司 | Motorcycle exhaust pipe heat insulating apparatus |
| CN105150609A (en) * | 2015-08-19 | 2015-12-16 | 无锡市富仕德特种玻璃纤维有限公司 | Protecting cover with thermal radiation reflecting capacity |
| CN115117810A (en) * | 2022-07-28 | 2022-09-27 | 黄昌敏 | Composite corrugated pipe for automobile wire heat insulation and manufacturing method |
| CN115387184A (en) * | 2022-08-29 | 2022-11-25 | 中铁七局集团有限公司 | Asphalt paving machine is with once only scald preventing bordure |
-
2009
- 2009-12-24 CN CN200920289528XU patent/CN201574813U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150609A (en) * | 2015-08-19 | 2015-12-16 | 无锡市富仕德特种玻璃纤维有限公司 | Protecting cover with thermal radiation reflecting capacity |
| CN105114162A (en) * | 2015-09-08 | 2015-12-02 | 力帆实业(集团)股份有限公司 | Motorcycle exhaust pipe heat insulating apparatus |
| CN115117810A (en) * | 2022-07-28 | 2022-09-27 | 黄昌敏 | Composite corrugated pipe for automobile wire heat insulation and manufacturing method |
| CN115387184A (en) * | 2022-08-29 | 2022-11-25 | 中铁七局集团有限公司 | Asphalt paving machine is with once only scald preventing bordure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG COMMERCIAL VEHICLE CO., LTD. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130903 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430056 WUHAN, HUBEI PROVINCE TO: 442001 SHIYAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130903 Address after: 442001 Shiyan City, Hubei province city Zhangwan District Road No. 2 Patentee after: DONGFENG TRUCKS Co.,Ltd. Address before: 430056 Dongfeng Road, Wuhan Economic Development Zone, Hanyang District, Hubei, China, No. 10, No. Patentee before: DONGFENG MOTER Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100908 |