CN220285852U - Non-road mobile machinery aftertreatment nozzle heat insulation structure - Google Patents
Non-road mobile machinery aftertreatment nozzle heat insulation structure Download PDFInfo
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- CN220285852U CN220285852U CN202321509243.9U CN202321509243U CN220285852U CN 220285852 U CN220285852 U CN 220285852U CN 202321509243 U CN202321509243 U CN 202321509243U CN 220285852 U CN220285852 U CN 220285852U
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- nozzle
- aftertreatment
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- treatment
- heat shield
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- 238000009413 insulation Methods 0.000 title claims abstract description 33
- 238000011282 treatment Methods 0.000 claims abstract description 45
- 238000005034 decoration Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- 210000002268 wool Anatomy 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 239000011152 fibreglass Substances 0.000 claims 1
- 238000011866 long-term treatment Methods 0.000 abstract description 2
- 229920000742 Cotton Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model provides a non-road mobile machinery post-treatment nozzle heat insulation structure, which comprises a post-treatment body, a post-treatment decoration cover, a nozzle base and a nozzle, wherein the post-treatment decoration cover is arranged at the upper end of the post-treatment body; a cylinder type heat shield assembly is arranged above the aftertreatment body and sleeved on the nozzle base; the upper end of the nozzle base is provided with a gasket and a nozzle heat shield; the gasket pad is arranged between the nozzle base and the nozzle; the bottom of the nozzle heat shield is fixed on the nozzle base, and the shield body of the nozzle heat shield surrounds the outside of the nozzle for a circle so as to block heat transfer from the post-treatment body and the post-treatment decorative shield. The utility model effectively solves the problem of performance failure caused by long-term treatment of the high temperature state of the nozzle in the use process, reduces the surface temperature of the nozzle in working, ensures the normal use of the nozzle, improves the universality and reduces the cost.
Description
Technical Field
The utility model relates to a heat insulation structure of a non-road mobile mechanical post-treatment nozzle, and belongs to the technical field of post-treatment equipment.
Background
Along with the release and implementation of the fourth-stage emission standard of the non-road mobile machinery country, the exhaust aftertreatment structure also needs to be continuously optimized and improved, compared with the aftertreatment structure of a vehicle machine, the exhaust aftertreatment structure is more complex, the matched vehicle type is various, the safety coefficient requirement is higher, better durability is required, and especially the heat insulation measures of the everywhere of the aftertreatment must be made so as to ensure that indexes such as reliability and adaptability of a host machine product meet the requirements of agricultural production.
The characteristics of the non-road mobile machinery aftertreatment structure, the installation and the use environment determine that the aftertreatment SCR urea system nozzle is in a high-temperature state for a long time in the use process, the heat insulation effect of the scheme of the non-road mobile machinery aftertreatment on nozzle heat insulation is poor at present, part of the aftertreatment is even the heat insulation scheme is missing, the problem that the aftertreatment function cannot be realized after the nozzle fails in the use process of the aftertreatment assembly product is caused, and therefore good heat insulation measures are required to avoid the influence of the too high temperature burning of the urea nozzle on the use.
The existing non-road mobile machinery post-treatment structure has the defects that: the existing scheme of the non-road mobile machinery post-treatment on nozzle heat insulation is poor in heat insulation effect, and partial non-road mobile machinery post-treatment lacks a nozzle heat insulation scheme, so that an imperfect nozzle heat insulation structure can cause the failure of a burning function due to overhigh temperature when the nozzle works.
Disclosure of Invention
Aiming at the defects existing in the prior art, the embodiment of the utility model provides a non-road mobile machinery post-treatment nozzle heat insulation structure, which effectively solves the problem of performance failure caused by long-term treatment of a high-temperature state in the use process of a nozzle, reduces the surface temperature of the nozzle during working, ensures the normal use of the nozzle, improves the universality and reduces the cost.
In order to achieve the technical purpose, the technical scheme adopted by the embodiment of the utility model is as follows:
the heat insulation structure of the non-road mobile machinery post-treatment nozzle comprises a post-treatment body, a post-treatment decoration cover, a nozzle base and a nozzle, wherein the post-treatment decoration cover is arranged at the upper end of the post-treatment body, the nozzle base is fixedly arranged on the post-treatment body, and the nozzle is arranged on the nozzle base;
a cylinder type heat shield assembly is arranged above the aftertreatment body and sleeved on the nozzle base;
the upper end of the nozzle base is provided with a gasket and a nozzle heat shield; the gasket pad is arranged between the nozzle base and the nozzle; the bottom of the nozzle heat shield is fixed on the nozzle base, and the shield body of the nozzle heat shield surrounds the outside of the nozzle for a circle so as to block heat transfer from the post-treatment body and the post-treatment decorative shield.
Further, the nozzle heat shield is bowl-shaped and comprises a bowl bottom, a bowl body part and a bowl edge part; the bowl body part is attached and sealed with the edge of the opening of the post-treatment decorative cover; the bowl edge part is turned outwards and fixedly connected with the post-treatment decorative cover.
Further, the bowl bottom sets up a plurality of boss, and every boss center is equipped with nozzle base connecting hole, nozzle base connecting hole is used for setting up first connecting piece, nozzle heat exchanger is fixed with the nozzle base through first connecting piece.
Further, the bottom of the nozzle heat shield is provided with an opening for avoiding the gasket.
Further, the cylinder heat shield assembly comprises an upper layer and a lower layer, wherein the upper layer is a stainless steel layer, and the lower layer is a glass fiber cotton layer.
Further, the thickness of the stainless steel layer is 1.3-1.7mm, and the thickness of the glass fiber cotton layer is 10-14mm.
Further, the gasket is a mica gasket, the gasket is provided with triangles, each corner is provided with a nozzle connecting hole, and the nozzle connecting holes are provided with second connecting pieces used for being connected with the nozzles.
Further, the edge of the cylinder heat shield component is fixedly connected with the post-treatment body.
The technical scheme provided by the embodiment of the utility model has the beneficial effects that:
1. through the integrated arrangement scheme of nozzle, gasket, nozzle heat exchanger and aftertreatment clarifier, overall structure design is compact, reduces the space that occupies, more easily satisfies the loading boundary.
2. The heat conduction and heat radiation of the post-treatment are effectively reduced through three-layer heat insulation measures, the failure risk of the nozzle is reduced, and the normal work of the post-treatment is ensured.
3. The boss design is had to nozzle heat exchanger installation department in this application, makes its and nozzle base area of contact reduce, further reduces heat transfer, reduces the surface temperature of nozzle, prevents that the too high inefficacy that burns out of temperature, and this nozzle heat exchanger plays certain guard action to the nozzle surface simultaneously.
4. The structure universality is high, the structure similar to the post-treatment purifier can be borrowed, and the cost is lower.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 2 is a schematic structural view of a gasket according to an embodiment of the present utility model.
Fig. 3 is a schematic structural view of a nozzle heat shield according to an embodiment of the utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1, an embodiment of the present utility model provides a heat insulation structure for a post-treatment nozzle of a non-road mobile machine, which comprises a post-treatment body 1, a post-treatment decoration cover 3, a nozzle base 9 and a nozzle 5, wherein the post-treatment decoration cover 3 is arranged at the upper end of the post-treatment body 1, the nozzle base 9 is fixedly arranged on the post-treatment body 1, and the nozzle 5 is installed on the nozzle base 9. The cylinder heat exchanger assembly 2 is arranged above the aftertreatment body 1, the cylinder heat exchanger assembly 2 is sleeved on the nozzle base 9, and the cylinder heat exchanger assembly 2 can block heat transfer from the aftertreatment body 1. The upper end of the nozzle base 9 is provided with a gasket 7 and a nozzle heat shield 4; the gasket 7 is arranged between the nozzle base 9 and the nozzle 5 in a cushioning manner; the bottom of the nozzle heat shield 4 is fixed on the nozzle base 9, and the cover body of the nozzle heat shield 4 surrounds the outer side of the nozzle 5 for a circle so as to block heat transfer from the post-treatment body 1 and the post-treatment decorative cover 3.
Working principle: the post-treatment body 1 is welded with a nozzle base 9 for installing a nozzle 5, a cylinder type heat shield component 2 with a platform shape is firstly installed and welded, and the cylinder type heat shield component 2 is composed of 12mm glass fiber cotton and 1.5mm stainless steel to form a first layer of heat insulation structure; as shown in fig. 2, a triangular gasket 7 is arranged on a nozzle base 9, and the gasket 7 is made of mica material and has good heat insulation and high temperature resistance, so that a second heat insulation structure is formed; the third step is matched with the post-treatment decorative cover 3, a bowl-shaped nozzle heat-insulating cover 4 is installed through three first connecting pieces 6 (such as hexagon bolts) to seal the periphery of the nozzle 5, a boss 405 is arranged at the installation position of the nozzle heat-insulating cover 4 for modeling design, so that the contact area between the nozzle heat-insulating cover 4 and the nozzle base 9 is reduced, heat transfer is further reduced, and meanwhile, the nozzle 5 is surrounded by the nozzle heat-insulating cover 4 to have a certain protection function; after the three-layer heat insulation structure is fixed, the nozzle 5 is fixed by using three second connecting pieces 8 (such as hexagon bolts), so that heat transfer of post-treatment can be effectively reduced under the condition of not influencing loading, and the service performance of the nozzle is ensured.
In one embodiment, to improve the heat insulation effect, the barrel heat shield assembly 2 includes an upper layer and a lower layer, wherein the upper layer is a stainless steel layer 201, and the lower layer is a glass fiber wool layer 202.
In a specific embodiment, as shown in fig. 3, the nozzle heat shield 4 is bowl-shaped, and includes a bowl bottom 401, a bowl body 402, and a bowl edge 403; the bowl bottom 401 is fixed with the nozzle base 9 through a hexagonal bolt; the bowl body part 402 is attached and sealed with the edge of the opening of the post-treatment decorative cover 3; the bowl edge part 403 extends out of the opening edge of the post-treatment decorative cover 3 and is turned outwards, and the bowl edge part 403 is welded and fixed with the post-treatment decorative cover 3. The bowl bottom 401 is provided with three bosses 405, a nozzle base connecting hole 4051 is formed in the center of each boss 405, and a hexagon bolt used for being connected with the nozzle base 9 is arranged in each nozzle base connecting hole 4051.
In one embodiment, the bottom of the nozzle heat shield 4 is provided with an opening 404 for avoiding the gasket 7.
In a specific embodiment, the gasket 7 is made of mica material, the gasket 7 is provided with triangles, each corner is provided with a nozzle connecting hole 701, and a hexagonal bolt for connecting with the nozzle 5 is arranged on the nozzle connecting hole 701.
In one embodiment, the edge of the barrel heat shield assembly 2 is welded to the aftertreatment body 1.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same, and although the present utility model has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present utility model.
Claims (8)
1. The utility model provides a non-road mobile machinery aftertreatment nozzle heat insulation structure, includes aftertreatment body (1), aftertreatment decoration cover (3), nozzle base (9) and nozzle (5), the upper end of aftertreatment body (1) sets up aftertreatment decoration cover (3), fixedly sets up nozzle base (9) on aftertreatment body (1), installs nozzle (5) on nozzle base (9); it is characterized in that the method comprises the steps of,
a cylinder type heat shield assembly (2) is arranged above the aftertreatment body (1), and the cylinder type heat shield assembly (2) is sleeved on the nozzle base (9);
a gasket (7) and a nozzle heat shield (4) are arranged at the upper end of the nozzle base (9); the gasket (7) is arranged between the nozzle base (9) and the nozzle (5) in a cushioning manner; the bottom of the nozzle heat shield (4) is fixed on the nozzle base (9), and the cover body of the nozzle heat shield (4) surrounds the outside of the nozzle (5) for a circle so as to block heat transfer from the post-treatment body (1) and the post-treatment decorative cover (3).
2. The non-road mobile machine aftertreatment nozzle insulation structure of claim 1, wherein the nozzle insulation shield (4) is bowl-shaped, comprising a bowl bottom (401), a bowl body (402) and a bowl rim (403); the bowl body part (402) is attached and sealed with the edge of the opening of the post-treatment decorative cover (3); the bowl edge part (403) is turned outwards and fixedly connected with the post-treatment decorative cover (3).
3. The non-road mobile machinery aftertreatment nozzle heat insulation structure according to claim 2, wherein the bowl bottom (401) is provided with a plurality of bosses (405), a nozzle base connecting hole (4051) is arranged in the center of each boss (405), a first connecting piece (6) is arranged in the nozzle base connecting hole (4051), and the nozzle heat insulation cover (4) is fixed with the nozzle base (9) through the first connecting piece (6).
4. The non-road mobile machine aftertreatment nozzle insulation structure of claim 1, wherein the bottom of the nozzle insulation shield (4) is provided with an opening (404) for avoiding the gasket (7).
5. The non-road mobile machine aftertreatment nozzle insulation structure of claim 1, wherein the cartridge heat shield assembly (2) comprises an upper layer of stainless steel (201) and a lower layer of fiberglass wool (202).
6. The non-road mobile machine aftertreatment nozzle insulation construction according to claim 5 wherein the stainless steel layer (201) has a thickness of 1.3-1.7mm and the glass fibre wool layer (202) has a thickness of 10-14mm.
7. The non-road mobile machine aftertreatment nozzle insulation structure according to claim 1, characterized in that the gasket (7) is a mica gasket, the gasket (7) is provided with triangles, each corner is provided with a nozzle connection hole (701), and the nozzle connection holes (701) are provided with second connection pieces (8) for connection with the nozzles (5).
8. The non-road mobile machine aftertreatment nozzle insulation structure of claim 1, wherein the edge of the cartridge heat shield assembly (2) is fixedly connected to the aftertreatment body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321509243.9U CN220285852U (en) | 2023-06-14 | 2023-06-14 | Non-road mobile machinery aftertreatment nozzle heat insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321509243.9U CN220285852U (en) | 2023-06-14 | 2023-06-14 | Non-road mobile machinery aftertreatment nozzle heat insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220285852U true CN220285852U (en) | 2024-01-02 |
Family
ID=89343236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321509243.9U Active CN220285852U (en) | 2023-06-14 | 2023-06-14 | Non-road mobile machinery aftertreatment nozzle heat insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220285852U (en) |
-
2023
- 2023-06-14 CN CN202321509243.9U patent/CN220285852U/en active Active
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