CN220726411U - Counterflow type vehicle burner and thermal management system - Google Patents
Counterflow type vehicle burner and thermal management system Download PDFInfo
- Publication number
- CN220726411U CN220726411U CN202322255786.9U CN202322255786U CN220726411U CN 220726411 U CN220726411 U CN 220726411U CN 202322255786 U CN202322255786 U CN 202322255786U CN 220726411 U CN220726411 U CN 220726411U
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- Prior art keywords
- pipe
- burner
- elbow
- barrel
- oil
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- 238000002485 combustion reaction Methods 0.000 abstract description 11
- 239000007921 spray Substances 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 6
- 239000002283 diesel fuel Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 34
- 239000003921 oil Substances 0.000 description 30
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 18
- 239000003054 catalyst Substances 0.000 description 13
- 239000000295 fuel oil Substances 0.000 description 10
- 239000000446 fuel Substances 0.000 description 9
- 230000003197 catalytic effect Effects 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000001994 activation Methods 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000002679 ablation Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910002089 NOx Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Processes For Solid Components From Exhaust (AREA)
Abstract
The utility model discloses a countercurrent type vehicle burner and a thermal management system, comprising a cylinder sub-assembly, a burner sub-assembly and a flow dividing plate, wherein the cylinder sub-assembly comprises a cylinder, a temperature sensor seat and a connecting flange; the combustor subassembly includes intake pipe, advance oil pipe, oil pipe blanking cover, return bend, air guide plate and connecting pipe, the flow distribution plate sets up the inboard that is close to the flange end at the barrel, the return bend passes from the centre bore of flow distribution plate. The utility model can solve the problems of poor mixing condition of combustion air and diesel oil spray, insufficient air supply amount after the burner is ignited and low combustion efficiency.
Description
Technical Field
The utility model relates to the technical field of exhaust purification treatment of automobile engines, in particular to a countercurrent type automobile burner and a thermal management system.
Background
Due to emission regulation requirements, an aftertreatment device is required to be installed, exhaust gas discharged from an engine sequentially passes through a DOC (diesel oxidant catalyst, a diesel oxidation catalyst), a DPF (diesel particle filter, a diesel particulate filter) and an SCR (selective catalytic reduction ) catalyst in the aftertreatment device and then is discharged into the atmosphere, so that the influence of automobile exhaust gas on the environment is reduced, wherein the DOC is placed in front of the DPF and the SCR catalyst and is used for converting carbon monoxide (CO) and Hydrocarbon (HC) in the exhaust gas into harmless water (H2O) and carbon dioxide (CO 2), nitric Oxide (NO) in the exhaust gas is oxidized into nitrogen dioxide (NO 2), the conversion speed and efficiency of Nitrogen Oxide (NOX) in the exhaust gas by the subsequent SCR are accelerated, fuel oil before the DOC is catalyzed and oxidized and injected is prepared for DPF regeneration by raising the temperature in the DOC through oxidation of the fuel oil, and the SCR (selective catalytic reduction ) converts Nitrogen Oxides (NOX) in the exhaust gas into nitrogen (N2) under the action of the catalyst by using ammonia (NH 3) generated by urea hydrolysis.
The exhaust emission is converted by the carrier catalyst in the aftertreatment device, the activity of the carrier catalyst has the optimal working temperature range, the exhaust emission of the engine is very low under partial working conditions such as cold start, reverse towing, idling and the like, the catalytic activity of the aftertreatment catalyst is very low, the exhaust emission is very difficult to convert, the activity of the carrier catalyst also has the condition of delayed activation along with the rise of the ambient temperature, namely the carrier catalyst needs to be activated for a certain time, if the carrier catalyst needs to be activated during the activation process, the engine needs to perform DPF regeneration treatment, at the moment, the carrier catalyst has limited energy for converting HC, such as when the engine performs DPF regeneration oil injection during the acceleration process, the engine exhaust pipe is easy to emit white smoke, and meanwhile, the carrier catalyst has limited energy for oxidizing NO in the activation process, thereby influencing the passive regeneration in the DPF and the conversion efficiency of NOx in the SCR.
Common combustors are divided into injection type and evaporation type, the spray type combustors adopt a high-pressure oil pump to spray fuel oil into a combustion chamber through a nozzle, and atomized fine liquid drops participate in combustion through evaporation and diffusion. Although the thermal power released from the combustion chamber in the spray burner is high, the nozzle holes are too thin, and when they contact the exhaust gas, clogging is easily caused, resulting in a decrease in combustion efficiency. The evaporation burner adopts a low-pressure electromagnetic pump to convey fuel to a fuel adsorption net at the top of a combustion chamber, and the fuel volatilizes rapidly after being heated and is mixed with air in the combustion chamber for combustion, so that the problems of HC leakage, slower fuel quantity regulation response, difficult temperature control and the like are easily caused when the evaporation is poor.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a countercurrent cyclone burner. Solves the problems of poor mixing condition of combustion air and diesel oil spray, insufficient air supply amount after the ignition of a burner and reduced combustion efficiency.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:
a countercurrent type vehicle burner comprises a cylinder sub-assembly, a burner sub-assembly and a splitter plate,
the barrel sub-assembly comprises a barrel, a temperature sensor seat and a connecting flange, wherein the connecting flange is arranged at one end of the barrel, a through hole is formed in the side surface of the other end of the barrel, the through hole penetrates through the inner side and the outer side of the barrel, and the temperature sensor seat is arranged on the side surface of the barrel close to the end of the connecting flange;
the combustor subassembly comprises an air inlet pipe, an oil pipe blanking cover, an elbow pipe, an air guide plate and a connecting pipe, wherein one end of the elbow pipe penetrates through the through hole, the other end of the elbow pipe penetrates out of the flange end of the cylinder body, the air inlet pipe and the oil inlet pipe penetrate through the oil pipe blanking cover arranged at the through hole end of the elbow pipe and extend into the elbow pipe, the oil inlet pipe is connected with the air inlet pipe through the connecting pipe in the elbow pipe, and the outlet of the air inlet pipe is communicated with the inside of the elbow pipe through the air guide plate; one side of the air inlet pipe is provided with an air guide plate, and the other side of the air inlet pipe is provided with an oil inlet pipe outlet, so that efficient mixing of oil and gas can be promoted; before the oil gas enters the bent pipe, the pressure and the flow speed are different, and the pressure balance of the oil gas is adjusted through the connecting pipe.
The flow dividing plate is arranged on the inner side of the cylinder body close to the connecting flange end, and the bent pipe penetrates through the center hole of the flow dividing plate. The splitter plate is connected with the inner wall of the cylinder body and the outer wall of the bent pipe, and supports the arrangement of the bent pipe in the cylinder body. The uniformity of mixing of high-temperature gas combusted by the burner and the tail gas of the engine is improved through the splitter plate.
Furthermore, the bent pipe is also provided with a through hole for installing the burner ignition device.
Further, the burner subassembly also includes a spring disposed at the outlet end of the elbow. The device avoids the contact between high-temperature fuel gas and the wall of the elbow pipe, protects the elbow pipe from high-temperature ablation, sprays fuel oil into the elbow pipe, and part of fuel oil is not gasified to carry out oil drop, enters the catalytic muffler along with the air flow and is discharged from the burner, so as to pollute the DOC. The use of the spring prevents the unvaporized fuel from flowing out of the burner, and the fuel burned in this portion is regated and burned again.
A thermal management system, the burner comprising the burner described above.
The beneficial effects of the utility model are that
The bent pipe of the burner is connected with the cylinder body and the splitter plate, a first chamber of the burner is arranged in the bent pipe, oil gas is mixed and ignited in the bent pipe, and a spring, an air guide plate and a connecting pipe are also arranged in the bent pipe. The bent pipe is provided with a through hole of the ignition device. The outer wall of the bent pipe and the inner wall of the cylinder body form a second chamber of the burner. In the second chamber, high-temperature fuel gas generated by the burner is mixed with engine tail gas, so that the temperature of the engine tail gas is increased, and the conversion efficiency of the catalytic muffler is improved. The oil gas is premixed at the front end in the bent pipe, the oil gas is premixed through the bent pipe, the layered flow of the airflow is changed, the fuel oil is quickly evaporated from the initial particle liquid state to the gas state, and the mixer is burnt in the rear end straight pipe section in the bent pipe. The tail gas of the engine flows through the outer surface of the bent pipe, and meanwhile, the gas temperature in the bent pipe is heated, so that the atomization efficiency of the fuel oil is improved.
Drawings
FIG. 1 is a schematic view of a countercurrent type vehicle burner according to the present utility model;
FIG. 2 is a schematic view of a structure of a burner cylinder for a countercurrent type vehicle according to the present utility model;
FIG. 3 is a schematic view of a reverse flow type vehicle burner elbow according to the present utility model;
FIG. 4 is a partial block diagram of a reverse flow automotive burner elbow according to the present utility model;
FIG. 5 is a schematic view of a flow divider structure of a reverse-flow vehicle burner according to the present utility model;
fig. 6 is a view showing a state of use of a reverse flow type burner for a vehicle according to the present utility model.
In the figure, a 10-cylinder sub-assembly; 20-a burner subassembly; 30-diverter plate. 11-a cylinder; 12-a temperature sensor mount; 13-connecting flanges; 21-an air inlet pipe; 22-an oil inlet pipe; 23-an oil pipe blanking cover; 24-bending the pipe; 25-springs; 26-an air guide plate; 27-connecting tube.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
As shown in fig. 1, a countercurrent type burner for a vehicle includes a cylinder assembly 10, a burner assembly 20 and a flow dividing plate 30,
the barrel assembly 10 comprises a barrel 11, a temperature sensor seat 12 and a connecting flange 13, wherein the connecting flange 13 is arranged at one end of the barrel 11, a through hole is arranged on the side surface of the other end of the barrel 11 and penetrates through the inner side and the outer side of the barrel, and the temperature sensor seat 12 is arranged on the side surface of the barrel 11 close to the end of the connecting flange 13;
the burner sub-assembly 20 comprises an air inlet pipe 21, an oil inlet pipe 22, an oil pipe blanking cover 23, an elbow 24, an air guide plate 26 and a connecting pipe 27, wherein one end of the elbow 24 passes through a through hole, the other end of the elbow passes out of a connecting flange 13 end of the cylinder 11, the air inlet pipe 21 and the oil inlet pipe 22 pass through the oil pipe blanking cover 23 arranged at the through hole end of the elbow 24 and extend into the elbow 24, the oil inlet pipe 22 is connected with the air inlet pipe 21 through the connecting pipe 27 in the elbow 24, and the outlet of the air inlet pipe 21 is communicated with the inside of the elbow 24 through the air guide plate 26; an air guide plate 26 is arranged at one side of the outlet of the air inlet pipe 21, and the outlet of the oil inlet pipe 22 is arranged at the other side, so that efficient mixing of oil and gas can be promoted; the pressure and flow rate of the oil gas are different before the oil gas enters the bent pipe 24, and the pressure balance of the oil gas is adjusted through the connecting pipe 27.
The splitter plate 30 is disposed on the inner side of the end of the cylinder 11 near the connecting flange 13, and the bent pipe 24 passes through a central hole of the splitter plate 30. The splitter plate 30 is connected to the inner wall of the barrel 11 and the outer wall of the elbow 24, while supporting the arrangement of the elbow 24 within the barrel 11. The uniformity of mixing of the high temperature gas combusted by the burner with the engine exhaust is improved by the splitter plate 30.
The elbow 24 of the burner is connected with the cylinder 11 and the splitter plate 30, a first chamber of the burner is arranged in the elbow 24, oil gas is mixed and ignited in the elbow 24, and the elbow 24 is also internally provided with an air guide plate 26 and a connecting pipe 27. The bent pipe 24 is provided with a through hole for the ignition device. The outer wall of the elbow 24 and the inner wall of the barrel 11 form a second chamber of the burner. In the second chamber, high-temperature fuel gas generated by the burner is mixed with engine tail gas, so that the temperature of the engine tail gas is increased, and the conversion efficiency of the catalytic muffler is improved. The oil and gas are premixed at the front end in the bent pipe 24, the oil and gas are premixed through the bent pipe, the layered flow of the air flow is changed, the fuel oil is quickly evaporated from the initial particle liquid state to the gas state, and the mixed gas is combusted in the rear end straight pipe section in the bent pipe 24. The tail gas of the engine flows through the outer surface of the bent pipe 24, and simultaneously heats the gas temperature in the bent pipe 24, so that the atomization efficiency of the fuel is improved.
As a preference to the above embodiment, the burner subassembly further comprises a spring 25, said spring 25 being arranged at the outlet end of the elbow 24. The device avoids the contact between high-temperature fuel gas and the wall of the elbow pipe, protects the elbow pipe from high-temperature ablation, sprays fuel oil into the elbow pipe, and part of fuel oil is not gasified to carry out oil drop, enters the catalytic muffler along with the air flow and is discharged from the burner, so as to pollute the DOC. The use of the spring 25 prevents the unvaporised fuel from flowing out of the burner, and the fuel in this portion is re-vaporised and re-burnt.
As a preferred one of the above embodiments, a thermal management system, the burner comprises the burner described above.
While the utility model has been described in detail with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.
Claims (4)
1. A reverse flow vehicular burner, characterized by: comprises a cylinder sub-assembly, a burner sub-assembly and a flow dividing plate,
the barrel sub-assembly comprises a barrel, a temperature sensor seat and a connecting flange, wherein the connecting flange is arranged at one end of the barrel, a through hole is formed in the side surface of the other end of the barrel, the through hole penetrates through the inner side and the outer side of the barrel, and the temperature sensor seat is arranged on the side surface of the barrel close to the end of the connecting flange;
the combustor subassembly comprises an air inlet pipe, an oil pipe blanking cover, an elbow pipe, an air guide plate and a connecting pipe, wherein one end of the elbow pipe penetrates through the through hole, the other end of the elbow pipe penetrates out of the flange end of the cylinder body, the air inlet pipe and the oil inlet pipe penetrate through the oil pipe blanking cover arranged at the through hole end of the elbow pipe and extend into the elbow pipe, the oil inlet pipe is connected with the air inlet pipe through the connecting pipe in the elbow pipe, and the outlet of the air inlet pipe is communicated with the inside of the elbow pipe through the air guide plate;
the flow dividing plate is arranged on the inner side of the cylinder body close to the connecting flange end, and the bent pipe penetrates through the center hole of the flow dividing plate.
2. A counter-flow automotive burner as claimed in claim 1, wherein: the bent pipe is also provided with a through hole for installing the burner ignition device.
3. A counter-flow automotive burner as claimed in claim 1, wherein: the burner subassembly further includes a spring disposed at the outlet end of the elbow.
4. A thermal management system, characterized in that the burner comprises a burner according to any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322255786.9U CN220726411U (en) | 2023-08-22 | 2023-08-22 | Counterflow type vehicle burner and thermal management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322255786.9U CN220726411U (en) | 2023-08-22 | 2023-08-22 | Counterflow type vehicle burner and thermal management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220726411U true CN220726411U (en) | 2024-04-05 |
Family
ID=90492598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322255786.9U Active CN220726411U (en) | 2023-08-22 | 2023-08-22 | Counterflow type vehicle burner and thermal management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220726411U (en) |
-
2023
- 2023-08-22 CN CN202322255786.9U patent/CN220726411U/en active Active
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| GR01 | Patent grant | ||
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