CN219654767U - Heating and heat-preserving structure of exhaust pipeline of diesel engine - Google Patents
Heating and heat-preserving structure of exhaust pipeline of diesel engine Download PDFInfo
- Publication number
- CN219654767U CN219654767U CN202320880201.XU CN202320880201U CN219654767U CN 219654767 U CN219654767 U CN 219654767U CN 202320880201 U CN202320880201 U CN 202320880201U CN 219654767 U CN219654767 U CN 219654767U
- Authority
- CN
- China
- Prior art keywords
- heat preservation
- exhaust
- treatment device
- gas treatment
- fixed
- 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.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 238000004321 preservation Methods 0.000 claims description 147
- 238000010276 construction Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 54
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a heating and heat-preserving structure of an exhaust pipeline of a diesel engine, which comprises an engine, an exhaust pipe connected with the engine and an exhaust gas treatment device connected to the exhaust pipe, wherein the exhaust pipe and the exhaust gas treatment device are both fixed in a heat-preserving shell, a space between the heat-preserving shell and the exhaust pipe and between the heat-preserving shell and the exhaust gas treatment device is a heat-preserving cavity, and one end of the heat-preserving shell, which is close to the engine, is provided with a heat-preserving cavity air outlet. According to the utility model, the heat-insulating shell is additionally arranged outside the exhaust pipe and the tail gas treatment device, the exhaust gas discharged from the post-treatment is guided into the surfaces of the exhaust pipe and the tail gas treatment device through the heat-insulating cavity for heating and heat insulation, so that the inside of the exhaust pipe and the inside of the tail gas treatment device are always in a higher temperature field, the heating and heat insulation requirements of an exhaust pipeline of a diesel engine are met, the purification efficiency of the tail gas is improved, and the scheme has the advantages of low cost and good heat insulation effect.
Description
Technical Field
The utility model relates to the technical field of engine tail gas treatment equipment, in particular to a heating and heat-preserving structure of a diesel engine exhaust pipeline.
Background
With the increasing strictness of automobile emission regulations, the requirements on the treatment efficiency of nitrogen oxides emitted by diesel engines are higher and higher, and the high conversion efficiency of nitrogen oxides is established under the high-temperature reaction condition of tail gas, so that the reduction of the temperature drop of an exhaust pipeline of a diesel engine is more and more important. The traditional diesel engine exhaust pipeline adopts the mode of parcel insulating material to reduce the heat loss of waste gas in exhaust pipeline, and such scheme is with high costs, and the reliability is low, and the heat preservation effect is also not good simultaneously.
Disclosure of Invention
The utility model aims to solve the defects of the background technology and provide the heating and heat-preserving structure of the diesel engine exhaust pipeline, which has low cost and can effectively ensure that the environmental temperature of the diesel engine exhaust pipeline meets the requirement of high conversion efficiency of nitrogen oxides.
The utility model provides a heating and heat-preserving structure of a diesel engine exhaust pipeline, which comprises an engine, an exhaust pipe connected with the engine and a tail gas treatment device connected to the exhaust pipe, wherein the exhaust pipe and the tail gas treatment device are both fixed in a heat-preserving shell, a space between the heat-preserving shell and the exhaust pipe and between the heat-preserving shell and the tail gas treatment device is a heat-preserving cavity, and one end of the heat-preserving shell, which is close to the engine, is provided with a heat-preserving cavity air outlet.
Further, the exhaust pipe and the tail gas treatment device are both fixed with a heat preservation shell fixing support, and the heat preservation shell is fixed on the heat preservation shell fixing support.
Further, the front end of the exhaust pipe is connected with the engine, the rear end of the exhaust pipe is connected with the tail gas treatment device, and the rear end of the tail gas treatment device is provided with a tail gas treatment device exhaust port.
Further, the heat preservation casing fixed bolster is including being fixed in first heat preservation casing fixed bolster on the blast pipe and be fixed in second heat preservation casing fixed bolster on the tail gas treatment device, both ends are fixed in respectively on the heat preservation casing fixed bolster with on the second heat preservation casing fixed bolster around the heat preservation casing.
Further, the first heat preservation casing fixed bolster is for coaxial fixing in support ring on the blast pipe, the heat preservation casing include with the blast pipe coaxial arrangement, be fixed in first Wen Guanduan on the first heat preservation casing fixed bolster, the front end of first heat preservation pipeline section is provided with the heat preservation cavity gas outlet.
Further, the front end of the first heat preservation pipe section is bent inwards and coaxially fixed on the exhaust pipe.
Further, the second heat preservation casing fixed bolster is coaxial to be fixed in support ring on the tail gas treatment device rear end surface, the heat preservation casing include with tail gas treatment device coaxial arrangement, be fixed in the second heat preservation pipeline section on the second heat preservation casing fixed bolster, the front end of second heat preservation pipeline section with the coaxial fixed connection of rear end of first heat preservation pipeline section is the step structure, the rear end of second heat preservation pipeline section is enclosed construction.
Further, the exhaust port of the tail gas treatment device is positioned in a ring surrounded by the second heat preservation shell fixing support.
Further, the second heat preservation casing fixed bolster is coaxial to be fixed in support ring on the tail gas treatment device side surface, the heat preservation casing include with tail gas treatment device coaxial arrangement, be fixed in the second heat preservation pipeline section on the second heat preservation casing fixed bolster, the front end of second heat preservation pipeline section with the coaxial fixed connection of rear end of first heat preservation pipeline section is the step structure, the rear end of second heat preservation pipeline section is the enclosed construction.
Still further, second heat preservation casing fixed bolster is coaxial to be fixed in support ring on the tail gas treatment device front end surface, the heat preservation casing include with the coaxial second heat preservation pipeline section of arranging of tail gas treatment device, the second heat preservation pipeline section includes the inwards kink of front end, kink coaxial fixed connection in the rear end of first heat preservation pipeline section, the rear end of second heat preservation pipeline section is the enclosed construction, the kink of second heat preservation pipeline section is coaxial to be fixed in on the second heat preservation casing fixed bolster.
The beneficial effects of the utility model are as follows: according to the utility model, the heat-insulating shell is additionally arranged outside the exhaust pipe and the tail gas treatment device, the exhaust gas discharged from the post-treatment is guided into the surfaces of the exhaust pipe and the tail gas treatment device through the heat-insulating cavity for heating and heat insulation, so that the inside of the exhaust pipe and the inside of the tail gas treatment device are always in a higher temperature field, the heating and heat insulation requirements of an exhaust pipeline of a diesel engine are met, the purification efficiency of the tail gas is improved, and the scheme has the advantages of low cost and good heat insulation effect.
Drawings
FIG. 1 is a schematic view of a heating and insulating structure for an exhaust line of a diesel engine according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a heating and heat-preserving structure for an exhaust line of a diesel engine according to a second embodiment of the present utility model;
FIG. 3 is a schematic view of a heating and heat-preserving structure for an exhaust line of a diesel engine according to a third embodiment of the present utility model;
the device comprises a 1-engine, a 2-corrugated pipe, a 3-first heat preservation shell fixing support, a 4-exhaust pipe, a 5-first heat preservation Wen Guanduan, a 6-second heat preservation pipe section, a 7-tail gas treatment device, an 8-second heat preservation chamber, a 9-second heat preservation shell fixing support, a 10-tail gas treatment device exhaust port, an 11-first heat preservation chamber and a 12-heat preservation chamber air outlet.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and to specific examples.
The heating and heat-preserving structure of the exhaust pipeline of the diesel engine shown in fig. 1 comprises an engine 1, a corrugated pipe 2, an exhaust pipe 4 and an exhaust gas treatment device 7, wherein the corrugated pipe 2, the exhaust pipe 4 and the exhaust gas treatment device 7 are sequentially connected with the exhaust end of the engine 1, and an exhaust gas treatment device exhaust port 10 is arranged at the rear end of the exhaust gas treatment device 7.
Wherein, all be fixed with heat preservation casing fixed bolster on blast pipe 4 and the tail gas processing apparatus 7, heat preservation casing is fixed in on the heat preservation casing fixed bolster, and blast pipe 4 and tail gas processing apparatus 7 are all fixed in the heat preservation casing, and the space between heat preservation casing and blast pipe 4 and the tail gas processing apparatus 7 is the heat preservation cavity, and the one end that the heat preservation casing is close to engine 1 is provided with heat preservation cavity gas outlet 12.
The heat preservation casing fixed bolster includes the first heat preservation casing fixed bolster 3 that is fixed in on the blast pipe 4 and is fixed in the second heat preservation casing fixed bolster 9 on the tail gas treatment device 7, and the both ends are fixed in respectively on first heat preservation casing fixed bolster 3 and the second heat preservation casing fixed bolster 9 around the heat preservation casing.
The following three embodiments are given for the specific design structures of the first thermal insulation housing fixing bracket 3 and the second thermal insulation housing fixing bracket 9 (the present utility model provides three specific examples, but is not limited thereto, and other fixing bracket structures for fixing the thermal insulation housing by simple conversion, so that the exhaust pipe 4 and the exhaust gas treatment device 7 are located in the thermal insulation housing are all within the protection scope of the present utility model):
embodiment one:
as shown in fig. 1, the first heat preservation casing fixing support 3 is a support ring coaxially fixed on the exhaust pipe 4, the heat preservation casing includes a first heat preservation Wen Guanduan coaxially arranged with the exhaust pipe 4 and fixed on the first heat preservation casing fixing support 3, and the front end of the first heat preservation pipe section 5 is provided with a heat preservation chamber air outlet 12. The front end of the first heat preservation pipe section 5 is bent inwards and coaxially fixed on the exhaust pipe 4. The second heat preservation shell fixing support 9 is a support ring coaxially fixed on the surface of the rear end of the tail gas treatment device 7, the heat preservation shell comprises a second heat preservation pipe section 6 coaxially arranged with the tail gas treatment device 7 and fixed on the second heat preservation shell fixing support 9, the front end of the second heat preservation pipe section 6 and the rear end of the first heat preservation pipe section 5 are coaxially and fixedly connected to form a stepped structure, and the rear end of the second heat preservation pipe section 6 is of a closed structure. The exhaust port 10 of the exhaust treatment device is positioned in a ring surrounded by the second heat-preserving shell fixing bracket 9.
Embodiment two:
as shown in fig. 2, the first heat preservation casing fixing support 3 is a support ring coaxially fixed on the exhaust pipe 4, the heat preservation casing includes a first heat preservation Wen Guanduan coaxially arranged with the exhaust pipe 4 and fixed on the first heat preservation casing fixing support 3, and the front end of the first heat preservation pipe section 5 is provided with a heat preservation chamber air outlet 12. The front end of the first heat preservation pipe section 5 is bent inwards and coaxially fixed on the exhaust pipe 4. The second heat preservation casing fixed bolster 9 is the support ring that is fixed in on the tail gas treatment device 7 side surface coaxially, and the heat preservation casing includes with the coaxial arrangement of tail gas treatment device 7, is fixed in the second heat preservation pipeline section 6 on the second heat preservation casing fixed bolster 9, and the front end of second heat preservation pipeline section 6 and the coaxial fixed connection of rear end of first heat preservation pipeline section 5 are the ladder type structure, and the rear end of second heat preservation pipeline section 6 is the enclosed construction.
Embodiment III:
as shown in fig. 3, the first heat preservation casing fixing support 3 is a support ring coaxially fixed on the exhaust pipe 4, the heat preservation casing includes a first heat preservation Wen Guanduan coaxially arranged with the exhaust pipe 4 and fixed on the first heat preservation casing fixing support 3, and the front end of the first heat preservation pipe section 5 is provided with a heat preservation chamber air outlet 12. The front end of the first heat preservation pipe section 5 is bent inwards and coaxially fixed on the exhaust pipe 4. The second heat preservation casing fixed bolster 9 is the support ring of coaxial fixed in on the tail gas treatment device 7 front end surface, and the heat preservation casing includes the second heat preservation pipeline section 6 that arranges with tail gas treatment device 7 is coaxial, and second heat preservation pipeline section 6 includes the inwards kink of front end, and kink coaxial fixed connection is in the rear end of first heat preservation pipeline section 5, and the rear end of second heat preservation pipeline section 6 is the enclosed construction, and the kink of second heat preservation pipeline section 6 is coaxial fixed in on the second heat preservation casing fixed bolster 9.
In the utility model, exhaust gas discharged by the engine 1 flows into the exhaust pipe 4 through the corrugated pipe 2, then flows into the exhaust pipe 4 to treat pollutants, the treated exhaust gas is discharged into the heat preservation chamber through the exhaust port 10 of the exhaust gas treatment device, the exhaust gas heats and preserves heat of the exhaust gas treatment device 7 and the exhaust pipe 4 through the second heat preservation chamber 8 and the first heat preservation chamber 11, and finally is discharged into the atmosphere from the air outlet 12 of the heat preservation chamber, and the exhaust gas treated by the exhaust gas treatment device 7 heats the outer surfaces of the exhaust pipe 4 and the exhaust gas treatment device 7 in the process of passing through the heat preservation chamber, thereby playing a heat preservation effect.
In summary, according to the utility model, the heat-insulating shell is added outside the exhaust pipe 4 and the tail gas treatment device 7, and the exhaust gas discharged from the post-treatment is guided to the surfaces of the exhaust pipe 4 and the tail gas treatment device 7 through the heat-insulating cavity to be heated and insulated, so that the inside of the exhaust pipe 4 and the inside of the tail gas treatment device 7 are always in a higher temperature field, the heating and heat-insulating requirements of the exhaust pipeline of the diesel engine are met, the purification efficiency of the tail gas is improved, and the scheme has the advantages of low cost and good heat-insulating effect.
The above description is only of the preferred embodiment of the present utility model, and is not intended to limit the structure of the present utility model in any way. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims (10)
1. The utility model provides a heating insulation construction of diesel engine exhaust line, includes engine (1), blast pipe (4) and tail gas treatment device (7) on being connected on blast pipe (4) that are connected with engine (1), its characterized in that: the exhaust pipe (4) and the tail gas treatment device (7) are both fixed in a heat preservation shell, a space between the heat preservation shell and the exhaust pipe (4) and between the tail gas treatment device (7) is a heat preservation chamber, and one end, close to the engine (1), of the heat preservation shell is provided with a heat preservation chamber air outlet (12).
2. The heating and insulating structure of a diesel exhaust line according to claim 1, wherein: and the exhaust pipe (4) and the tail gas treatment device (7) are both fixedly provided with a heat preservation shell fixing bracket, and the heat preservation shell is fixed on the heat preservation shell fixing bracket.
3. The heating and insulating structure of the exhaust pipeline of the diesel engine as claimed in claim 2, wherein: the front end of the exhaust pipe (4) is connected with the engine (1), the rear end of the exhaust pipe (4) is connected with the exhaust gas treatment device (7), and an exhaust gas treatment device exhaust port (10) is formed in the rear end of the exhaust gas treatment device (7).
4. A heating and insulating structure for an exhaust line of a diesel engine as claimed in claim 3, wherein: the heat preservation casing fixed bolster is including being fixed in first heat preservation casing fixed bolster (3) on blast pipe (4) and be fixed in second heat preservation casing fixed bolster (9) on tail gas treatment device (7), both ends are fixed in respectively around the heat preservation casing first heat preservation casing fixed bolster (3) with on second heat preservation casing fixed bolster (9).
5. The heating and insulating structure of the exhaust pipeline of the diesel engine as claimed in claim 4, wherein: the first heat preservation casing fixed bolster (3) is for coaxial fixing in support ring on blast pipe (4), the heat preservation casing include with blast pipe (4) coaxial arrangement, be fixed in first protection Wen Guanduan (5) on first heat preservation casing fixed bolster (3), the front end of first protection Wen Guanduan (5) is provided with heat preservation cavity gas outlet (12).
6. The heating and insulating structure of the exhaust pipeline of the diesel engine as claimed in claim 5, wherein: the front end of the first protection Wen Guanduan (5) is bent inwards and coaxially fixed on the exhaust pipe (4).
7. The heating and insulating structure of the exhaust pipeline of the diesel engine as claimed in claim 5, wherein: the second heat preservation casing fixed bolster (9) is coaxial be fixed in support ring on tail gas treatment device (7) rear end surface, the heat preservation casing include with tail gas treatment device (7) coaxial arrangement, be fixed in second heat preservation pipe section (6) on second heat preservation casing fixed bolster (9), the front end of second heat preservation pipe section (6) with the coaxial fixed connection of rear end of first Wen Guanduan (5) is the ladder structure, the rear end of second heat preservation pipe section (6) is enclosed construction.
8. The heating and insulating structure of the exhaust pipeline of the diesel engine as claimed in claim 7, wherein: the exhaust port (10) of the tail gas treatment device is positioned in a ring surrounded by the second heat preservation shell fixing bracket (9).
9. The heating and insulating structure of the exhaust pipeline of the diesel engine as claimed in claim 5, wherein: the second heat preservation casing fixed bolster (9) is coaxial be fixed in support ring on tail gas treatment device (7) side surface, the heat preservation casing include with tail gas treatment device (7) coaxial arrangement, be fixed in second heat preservation pipe section (6) on second heat preservation casing fixed bolster (9), the front end of second heat preservation pipe section (6) with the coaxial fixed connection of rear end of first Wen Guanduan (5) is the ladder structure, the rear end of second heat preservation pipe section (6) is the enclosed construction.
10. The heating and insulating structure of the exhaust pipeline of the diesel engine as claimed in claim 5, wherein: the second heat preservation casing fixed bolster (9) is coaxial be fixed in support ring on tail gas treatment device (7) front end surface, the heat preservation casing include with tail gas treatment device (7) coaxial arrangement's second heat preservation pipeline section (6), second heat preservation pipeline section (6) include the inside kink of buckling of front end, kink coaxial fixed connection in the rear end of first Wen Guanduan (5), the rear end of second heat preservation pipeline section (6) is enclosed construction, the kink of second heat preservation pipeline section (6) is coaxial be fixed in on second heat preservation casing fixed bolster (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320880201.XU CN219654767U (en) | 2023-04-19 | 2023-04-19 | Heating and heat-preserving structure of exhaust pipeline of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320880201.XU CN219654767U (en) | 2023-04-19 | 2023-04-19 | Heating and heat-preserving structure of exhaust pipeline of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219654767U true CN219654767U (en) | 2023-09-08 |
Family
ID=87879191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320880201.XU Active CN219654767U (en) | 2023-04-19 | 2023-04-19 | Heating and heat-preserving structure of exhaust pipeline of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219654767U (en) |
-
2023
- 2023-04-19 CN CN202320880201.XU patent/CN219654767U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111878196B (en) | Exhaust system of diesel locomotive | |
| CN219654767U (en) | Heating and heat-preserving structure of exhaust pipeline of diesel engine | |
| CN203688095U (en) | Temperature sensor special for automobile tail gas measurement | |
| CN103792017A (en) | Temperature sensor special for measuring automobile exhaust and manufacturing method thereof | |
| CN202250314U (en) | SCR (Selective Catalytic Reduction) purification and sound-silencing device capable of quickly igniting | |
| CN216572450U (en) | Heating device for nitrogen oxide converter for boiler flue gas treatment | |
| CN201818350U (en) | Manifold type catalytic converter | |
| CN210637135U (en) | Square electrode low-temperature plasma and wood fiber combined tail gas treatment device | |
| CN215719151U (en) | Carbon-reducing exhauster | |
| CN203745104U (en) | Temperature sensor with flat contact head | |
| CN210568480U (en) | Exhaust-gas treatment recycle utilizes system | |
| CN216342401U (en) | Post-processor for national six-gas engine | |
| CN202338417U (en) | Power-assisted fuel economizer for automobile | |
| CN215256417U (en) | Forklift exhaust system | |
| CN107035463A (en) | It is a kind of that the sound eliminator for automobile of catalytic reaction can be carried out using waste heat | |
| CN105386842A (en) | Heat preservation and noise reduction automobile exhaust pipe | |
| CN207538902U (en) | A kind of new automobile ternary catalyzing unit | |
| WO2015180540A1 (en) | Combustion gas turbine | |
| CN218206835U (en) | Multi-voltage silencer for diesel power station | |
| CN208380681U (en) | A kind of Heavy duty gasoline engine exhaust system | |
| CN205654413U (en) | Car exhaust system that makes an uproar falls in high efficiency | |
| CN212022316U (en) | Truck exhaust system arrangement structure and truck | |
| CN209743017U (en) | High-efficient heat preservation exhaust return bend | |
| CN103775180A (en) | Air inlet device for controlling exhaust gas temperature by waste gas drainage | |
| CN202789211U (en) | Automobile boosting fuel economizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |