CN113085751A - Independent commercial vehicle EGP heat insulation structure and commercial vehicle comprising same - Google Patents
Independent commercial vehicle EGP heat insulation structure and commercial vehicle comprising same Download PDFInfo
- Publication number
- CN113085751A CN113085751A CN202110315994.6A CN202110315994A CN113085751A CN 113085751 A CN113085751 A CN 113085751A CN 202110315994 A CN202110315994 A CN 202110315994A CN 113085751 A CN113085751 A CN 113085751A
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- Prior art keywords
- heat insulation
- egp
- commercial vehicle
- cover body
- plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0876—Insulating elements, e.g. for sound insulation for mounting around heat sources, e.g. exhaust pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
Abstract
The invention discloses an EGP (expanded polyethylene) heat insulation structure of an independent commercial vehicle and the commercial vehicle comprising the same, wherein the EGP heat insulation structure comprises a heat insulation plate, the heat insulation plate comprises a protective bottom plate, a heat insulation material and a heat insulation cover body, the protective bottom plate and the heat insulation cover body are enclosed to form a hollow accommodating cavity, and the heat insulation material is filled in the accommodating cavity; the last interval of protection bottom plate is provided with the solid fixed ring of a plurality of opening, the solid fixed ring's of opening open end runs through insulation material and upwards extends to wear out thermal-insulated lid and fixed connection. The independent commercial vehicle EGP heat insulation structure is independent of EGP, improves the universality of a heat insulation scheme, can be widely matched with different EGP, is used for different vehicle types, has high universality of the scheme, does not need a special die, and has low production cost.
Description
Technical Field
The invention belongs to the technical field of automobile aftertreatment EGP heat insulation, and particularly relates to a free-standing commercial vehicle EGP heat insulation structure and a commercial vehicle with the same.
Background
At present, the heat insulation measure commonly used for the EGP of the commercial vehicle is that a heat insulation layer is wrapped on the EGP body in a welding mode, the outside of the heat insulation layer is made of stainless steel, and the heat insulation material wrapped in the heat insulation layer and the EGP body are welded into a whole. However, the conventional heat insulation measures commonly used for the commercial vehicle EGP have the following defects: (1) the universality is low: because the heat insulation measures are integrated with the EGP in a welding mode, each heat insulation scheme cannot be expanded to other EGPs, so that different EGPs need different heat insulation layers, the use range is limited, and the EGP heat insulation system cannot be widely used; (2) the production cost is high: on one hand, the low universality causes high production cost of parts; on the other hand, the process of wrapping and attaching the heat insulation layer and the EGP needs a special mold, and the mold is expensive. The steel plate of the heat insulation layer is integrated with the EGP in a welding mode, and the production process causes higher cost. Therefore, how to improve the EGP heat insulation structure of the commercial vehicle is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provides a stand-alone commercial vehicle EGP heat insulation structure and a commercial vehicle with the structure, wherein the stand-alone commercial vehicle EGP heat insulation structure has the advantages of strong universality, low production cost, simple structure and convenience in assembly.
In order to achieve the purpose, the invention adopts the technical scheme that: an EGP heat insulation structure of a free-standing commercial vehicle comprises a heat insulation plate, wherein the heat insulation plate comprises a protection bottom plate, a heat insulation material and a heat insulation cover body, the protection bottom plate and the heat insulation cover body are enclosed to form a hollow accommodating cavity, and the heat insulation material is filled in the accommodating cavity;
the last interval of protection bottom plate is provided with the solid fixed ring of a plurality of opening, the solid fixed ring's of opening open end runs through insulation material and upwards extends to wear out thermal-insulated lid and fixed connection.
In a preferred embodiment, the heat insulation plates are arranged in a single or continuous U shape, a plurality of brackets are arranged at the bottom of each heat insulation plate, and a plurality of mounting holes are arranged on each bracket.
Preferably, the protective bottom plate is made of stainless steel materials, and the thickness of the protective bottom plate is 1-5 mm.
Preferably, the heat insulation material is composed of a plurality of layers of heat insulation cotton, the heat insulation cotton is made of glass fiber cotton, and the surface of the glass fiber cotton is covered with a protective film.
Preferably, the temperature resistance of the heat insulation material is more than or equal to 650 degrees, and the heat conductivity coefficient is less than 0.098 w/m.k.
Preferably, the heat insulation cover body is made of heat insulation steel foil, and the thickness of the heat insulation cover body is 0.1-0.3 mm.
Preferably, the heat insulation cover body is provided with a through hole for the open end of the opening fixing ring to pass through, and the open end of the opening fixing ring is fixedly connected with the heat insulation cover body through welding after passing through the through hole.
Preferably, the connection between the heat insulation cover body and the protection bottom plate is fixed by welding.
The invention further provides a commercial vehicle, which comprises the EPG and the independent commercial vehicle EGP heat insulation structure, wherein the independent commercial vehicle EGP heat insulation structure is arranged between the EPG and a part to be heat insulated.
Preferably, the EPG is arranged below the heat insulation plate, and the part to be insulated is arranged above the heat insulation plate; the top of EPG is provided with the mounting bracket, support downwardly extending and the upper portion fixed connection of mounting bracket, EPG encircles the lower part of fixing at the mounting bracket through the strap.
Compared with the prior art, the method has the following beneficial effects:
the EGP heat insulation structure of the independent commercial vehicle avoids the limitation that the traditional wrapped EGP heat insulation scheme can only be used for one EGP, is independent of the EGP, can be matched with various EGPs, is used for various vehicle types, and has strong heat insulation scheme universality.
Secondly, the EGP heat insulation structure of the independent commercial vehicle can achieve an ideal heat insulation effect by changing the number of layers of heat insulation surfaces of the heat insulation material or changing the distance between the heat insulation plate and the EGP, and further improves the wide application of the scheme.
Thirdly, the EGP heat insulation structure of the independent commercial vehicle is analyzed by CAE, and under the condition of the same other conditions, the heat insulation effect of the independent heat insulation scheme designed by the invention is superior to that of the traditional heat insulation scheme integrated by wrapping.
Fourthly, the independent commercial vehicle EGP heat insulation structure disclosed by the invention is implemented without a mould, and compared with the traditional wrapped EGP heat insulation scheme which needs a special mould, the production cost is greatly reduced.
Drawings
FIG. 1 is a schematic view of a free standing commercial vehicle EGP insulation structure of the present invention;
FIG. 2 is a schematic view of the construction of the heat shield;
FIG. 3 is a schematic view of the installation structure of the protection base plate and the opening fixing ring;
FIG. 4 is a schematic view of the internal cross-sectional structure of the heat shield;
FIG. 5 is a schematic view of an assembly structure of an EGP heat insulation structure and parts of a free-standing commercial vehicle;
FIG. 6 is a CAE analysis result graph of a conventional wrapped-type heat-insulated EGP vehicle type;
FIG. 7 is a CAE analysis result diagram of an EGP vehicle type of an independent commercial vehicle according to the present invention;
in the figure: 1-heat insulation plate, 1.1-protective bottom plate, 1.2-heat insulation material, 1.3-heat insulation cover body, 1.4-opening fixing ring, 1.5-through hole, 2-bracket, 2.1-mounting hole, 3-EPG, 4-mounting frame, 5-strap and 6-urea tank.
Detailed Description
The present invention will be described in further detail with reference to specific examples to facilitate the clear understanding of the invention, but the present invention is not limited thereto.
As shown in fig. 1-4, the EGP heat insulation structure for the independent commercial vehicle comprises a heat insulation plate 1, wherein the heat insulation plate 1 comprises a protective bottom plate 1.1, a heat insulation material 1.2 and a heat insulation cover body 1.3, the protective bottom plate 1.1 and the heat insulation cover body 1.3 are enclosed to form a hollow accommodating cavity, and the heat insulation material 1.2 is filled in the accommodating cavity; the protective bottom plate 1.1 is provided with a plurality of opening fixing rings 1.4 at intervals, and the opening ends of the opening fixing rings 1.4 penetrate through the heat insulation material 1.2 and extend upwards to penetrate out of the heat insulation cover body 1.3 to be fixedly connected with the heat insulation cover body. The fixing method among the three layers of the protective bottom plate 1.1, the heat preservation material 1.2 and the heat insulation cover body 1.3 is as follows: firstly, fixing a heat insulation material on a protective bottom plate 1.1 through an opening fixing ring 1.4 welded on a heat insulation plate, as shown in figure 3; secondly, an opening fixing ring 1.4 on the protective bottom plate 1.1 penetrates through a reserved through hole of a heat insulation cover body 1.3 and then is fixed with the heat insulation cover body 1.3 in a welding mode, as shown in fig. 2; thirdly, the side surfaces of the periphery of the heat insulation cover body 1.3 extend to the lower part of the protective bottom plate 1.1 for welding, the periphery is wrapped with heat insulation materials 1.2, and the heat insulation materials 1.2 are not allowed to be exposed. And fourthly, polishing smoothly after welding, and then performing rust prevention and corrosion prevention treatment. The insulation board 1 is arranged in a single or continuous U shape, in order to achieve the universality of an insulation structure or improve the insulation effect, the insulation board can be made into a single or continuous U shape, and the purpose is to improve the insulation effect by improving the use frequency of the insulation material in the space.
Among the above-mentioned technical scheme, the bottom of heat insulating board 1 sets up a plurality of support 2, is provided with a plurality of mounting hole 2.1 on the support 2. The heat insulation plate 1 is fixed through the support 2, the heat insulation plate 1 and the support 2 are fixed together in a welding mode, and in order to improve the universality of a heat insulation structure, the heat insulation structure can achieve an effective heat insulation effect by increasing or shortening the distance between the heat insulation plate and the EGP through the independence of the heat insulation plate 1 and the support 2. The specific measure is to change the length of the bracket of the heat insulation plate to increase or shorten the distance between the bracket and the EGP.
Among the above-mentioned technical scheme, protection bottom plate 1.1 is made by stainless steel material, and the thickness of protection bottom plate 1.1 is 1 ~ 5 mm. Preferably, the protective base plate 1.1 is made of stainless steel 022Cr18 NBTi-89X. The heat insulation material 1.2 is composed of a plurality of layers of heat insulation cotton, the heat insulation cotton is made of glass fiber cotton, and the surface of the glass fiber cotton is covered with a protective film. The temperature resistance of the heat insulation material 1.2 is more than or equal to 650 degrees, and the heat conductivity coefficient is less than 0.098 w/m.k. The heat insulation cover body 1.3 is made of heat insulation steel foil, and the thickness of the heat insulation cover body 1.3 is 0.1-0.3 mm. The heat insulation cover body 1.3 is close to the EGP and extends to wrap the exposed heat insulation cotton; the heat insulation material is tightly attached to the surface of the protective plate, and no gap exists between the heat insulation material and the protective plate. In order to improve the universality of the heat insulation structure, the layer number of the heat insulation cotton of the heat insulation material can be increased to improve the heat insulation effect, and the heat insulation effect that the heat insulation structure in one state is used for various EGPs is achieved.
Among the above-mentioned technical scheme, be provided with the through-hole 1.5 that is used for supplying the open end of opening solid fixed ring 1.4 to pass on the thermal-insulated lid 1.3, the open end of opening solid fixed ring 1.4 passes through behind the through-hole 1.5 through welded mode and thermal-insulated lid 1.3 fixed connection. The joint of the heat insulation cover body 1.3 and the protection bottom plate 1.1 is fixed by welding.
The invention also provides a commercial vehicle, which comprises the EPG3 and the independent commercial vehicle EGP heat insulation structure, wherein the independent commercial vehicle EGP heat insulation structure is arranged between the EPG3 and a part to be heat insulated. The parts to be insulated comprise objects with certain requirements on temperature, such as a urea tank, an electric appliance and the like. As shown in fig. 5, taking a urea tank as an example, EPG3 is disposed below the heat shield 1, and urea tank 6 is disposed above the heat shield 1; the urea tank is provided with a fixed support and fixed on the ventral surface of the frame, and the urea tank 6 is relatively independent from the heat insulation plate 1 and has no mechanical contact. The top of EPG3 is provided with mounting bracket 4, and mounting bracket 4 is used for fixing EPG3 at the frame ventral surface, and the mode fixed connection that adopts bolted connection is adopted with the upper portion of mounting bracket 4 to support 2 downwardly extending, and EPG3 encircles through strap 5 and fixes the lower part at mounting bracket 4.
The EGP heat insulation structure of the independent commercial vehicle is universally embodied in that due to the fact that different EGPs have different heat dissipation capacities, when the EGPs have large heat dissipation capacities or are limited by space or objects placed above the EGPs are sensitive to temperature, the heat insulation cotton made of the heat insulation materials of the heat insulation plate 1 can be increased to 2 layers or 3 layers, and the height of the support 2 can also be increased, and the EGP heat insulation structure is determined according to specific conditions.
When the independent EGP heat insulation structure for the commercial vehicle is applied to a certain vehicle type, under the condition that the same EGP and the same urea tank and other external factors are ensured to be the same, the temperature of the middle area of the bottom of the urea tank of the traditional wrapped heat insulation EGP vehicle type is higher and is 47.9-50.4 ℃ through CAE analysis, the highest temperature is 50.4 ℃, and the CAE analysis result is shown in figure 6. The temperatures of the middle and tail areas at the bottom of the urea tank of the vehicle type with the independent heat insulation EGP structure are higher, namely 47.3-49.6 ℃, the highest temperature is 49.6 ℃, and the CAE analysis result is shown in figure 7.
The vehicle model test data and the CAE analysis result of the urea tank temperature can show that: adopt independent type commercial car EGP thermal-insulated structure, the urea tank bottom highest temperature is in vehicle operation requirement scope, and independent type commercial car EGP thermal-insulated structure not only satisfies the design requirement promptly, and thermal-insulated effect is superior to traditional parcel formula.
The above description is only for the specific embodiments of the present invention, and it should be noted that the remaining detailed descriptions are related to the prior art, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a stand alone type commercial car EGP heat-proof structure which characterized in that: the heat insulation plate comprises a heat insulation plate (1), wherein the heat insulation plate (1) comprises a protection bottom plate (1.1), a heat insulation material (1.2) and a heat insulation cover body (1.3), the protection bottom plate (1.1) and the heat insulation cover body (1.3) are enclosed to form a hollow accommodating cavity, and the heat insulation material (1.2) is filled in the accommodating cavity;
the heat insulation cover is characterized in that a plurality of opening fixing rings (1.4) are arranged on the protection bottom plate (1.1) at intervals, and the opening ends of the opening fixing rings (1.4) penetrate through the heat insulation material (1.2) and extend upwards to penetrate out the heat insulation cover body (1.3) and be fixedly connected with the heat insulation cover body.
2. A free standing commercial vehicle EGP insulation construction as claimed in claim 1, wherein: the heat insulation plate (1) is arranged in a single or continuous U shape, a plurality of supports (2) are arranged at the bottom of the heat insulation plate (1), and a plurality of mounting holes (2.1) are formed in the supports (2).
3. A free standing commercial vehicle EGP insulation construction as claimed in claim 1, wherein: the protective bottom plate (1.1) is made of stainless steel materials, and the thickness of the protective bottom plate (1.1) is 1-5 mm.
4. A free standing commercial vehicle EGP insulation construction according to claim 1 or 2 or 3, characterized in that: the heat insulation material (1.2) is composed of a plurality of layers of heat insulation cotton, the heat insulation cotton is made of glass fiber cotton, and a protective film covers the surface of the glass fiber cotton.
5. A free standing commercial vehicle EGP insulation construction according to claim 1 or 2 or 3, characterized in that: the temperature resistance of the heat insulation material (1.2) is more than or equal to 650 degrees, and the heat conductivity coefficient is less than 0.098 w/m.k.
6. A free standing commercial vehicle EGP insulation construction according to claim 1 or 2 or 3, characterized in that: the heat insulation cover body (1.3) is made of heat insulation steel foil, and the thickness of the heat insulation cover body (1.3) is 0.1-0.3 mm.
7. A free standing commercial vehicle EGP insulation construction according to claim 1 or 2 or 3, characterized in that: be provided with through-hole (1.5) that the open end that is used for supplying opening solid fixed ring (1.4) to pass on the thermal-insulated lid (1.3), the open end of opening solid fixed ring (1.4) passes through behind through-hole (1.5) through welded mode and thermal-insulated lid (1.3) fixed connection.
8. A free standing commercial vehicle EGP insulation construction according to claim 1 or 2 or 3, characterized in that: the joint of the heat insulation cover body (1.3) and the protection bottom plate (1.1) is fixed by welding.
9. Commercial vehicle comprising an EPG (3), characterized in that: the free-standing commercial vehicle EGP heat insulation structure comprises an EGP heat insulation structure of any one of claims 2-7, and is arranged between an EPG (3) and a part to be heat insulated.
10. A commercial vehicle according to claim 9, characterised in that: the EPG (3) is arranged below the heat insulation plate (1), and the part to be insulated is arranged above the heat insulation plate (1); the top of EPG (3) is provided with mounting bracket (4), support (2) downwardly extending and the upper portion fixed connection of mounting bracket (4), EPG (3) encircle through strap (5) and fix the lower part at mounting bracket (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315994.6A CN113085751A (en) | 2021-03-24 | 2021-03-24 | Independent commercial vehicle EGP heat insulation structure and commercial vehicle comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315994.6A CN113085751A (en) | 2021-03-24 | 2021-03-24 | Independent commercial vehicle EGP heat insulation structure and commercial vehicle comprising same |
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| Publication Number | Publication Date |
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| CN113085751A true CN113085751A (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110315994.6A Pending CN113085751A (en) | 2021-03-24 | 2021-03-24 | Independent commercial vehicle EGP heat insulation structure and commercial vehicle comprising same |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0439432A1 (en) * | 1990-01-21 | 1991-07-31 | Matec Holding Ag | Sound absorbing heat shield |
| US6302466B1 (en) * | 1998-03-12 | 2001-10-16 | Rieter Automotive (International) Ag | Vibration-damping, noise-reducing, heat-shielding vehicle trim |
| US20090197044A1 (en) * | 2008-02-04 | 2009-08-06 | Pelzer Acoustic Products, Llc | Absorptive Heat Shield |
| FR2941902A1 (en) * | 2009-02-09 | 2010-08-13 | Cera | Acoustic and thermal protection device for protecting e.g. turbine casing, from exhaust line in motor vehicle, has stiffening element for stiffening portion of flexible laminate, where other portion of laminate forms flexible portion |
| DE202012007545U1 (en) * | 2012-08-06 | 2013-08-09 | Reinz-Dichtungs-Gmbh | heat shield |
| CN208841986U (en) * | 2017-03-31 | 2019-05-10 | 卡库堤克斯科技咨询有限公司 | Play the hollow bodies of acoustics |
-
2021
- 2021-03-24 CN CN202110315994.6A patent/CN113085751A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0439432A1 (en) * | 1990-01-21 | 1991-07-31 | Matec Holding Ag | Sound absorbing heat shield |
| US6302466B1 (en) * | 1998-03-12 | 2001-10-16 | Rieter Automotive (International) Ag | Vibration-damping, noise-reducing, heat-shielding vehicle trim |
| US20090197044A1 (en) * | 2008-02-04 | 2009-08-06 | Pelzer Acoustic Products, Llc | Absorptive Heat Shield |
| FR2941902A1 (en) * | 2009-02-09 | 2010-08-13 | Cera | Acoustic and thermal protection device for protecting e.g. turbine casing, from exhaust line in motor vehicle, has stiffening element for stiffening portion of flexible laminate, where other portion of laminate forms flexible portion |
| DE202012007545U1 (en) * | 2012-08-06 | 2013-08-09 | Reinz-Dichtungs-Gmbh | heat shield |
| CN208841986U (en) * | 2017-03-31 | 2019-05-10 | 卡库堤克斯科技咨询有限公司 | Play the hollow bodies of acoustics |
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Application publication date: 20210709 |