CN209818143U - Combustor for DPF regeneration - Google Patents
Combustor for DPF regeneration Download PDFInfo
- Publication number
- CN209818143U CN209818143U CN201920456190.6U CN201920456190U CN209818143U CN 209818143 U CN209818143 U CN 209818143U CN 201920456190 U CN201920456190 U CN 201920456190U CN 209818143 U CN209818143 U CN 209818143U
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- diesel
- oil
- combustion
- evaporator
- burner
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- 238000011069 regeneration method Methods 0.000 title claims abstract description 18
- 230000008929 regeneration Effects 0.000 title claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims abstract description 56
- 238000005485 electric heating Methods 0.000 claims description 18
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 239000002283 diesel fuel Substances 0.000 abstract description 31
- 238000000034 method Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 85
- 239000007789 gas Substances 0.000 description 39
- 239000000446 fuel Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000000443 aerosol Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000005406 washing 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)
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to a diesel engine discharges control technique, especially a combustor for DPF regeneration, including helping the gas stream guide chamber, the diesel oil evaporimeter, electric heat ignition stick, combustion chamber and inflation expansion chamber, the gas stream guide chamber of combustion-supporting guides the air current of outside supply to turn into rotatory air current after getting into the combustion chamber, the diesel oil evaporimeter is located the combustion chamber center, evaporates the diesel oil of adding, electric heat ignition stick is located the oil-out department of diesel oil evaporimeter, inflation expansion chamber is located the combustion chamber rear portion. The evaporated diesel oil is positioned in the center of the rotating airflow with lower flow velocity, and can be easily combusted when the oil amount is small, the combustion area is gradually increased to the area with higher flow velocity of the combustion-supporting airflow when the oil amount is gradually increased, and the combustion-supporting gas and the combustion diesel oil can be matched in a self-adaptive manner.
Description
Technical Field
The utility model relates to a diesel engine emission control technique especially is used for particulate filter (DPF) palingenetic combustor.
Background
During the use of a particulate filter (DPF) in the exhaust aftertreatment technology of a diesel engine vehicle, more and more particulate matters are accumulated in the DPF, so that the exhaust back pressure of the engine is gradually increased, and after a period of time, the exhaust back pressure is higher than a limit value and a regeneration program needs to be started in time.
The regeneration procedure is a process for removing particulate matters in the DPF, and mainly comprises a heating combustion regeneration method, a water washing regeneration method, a high-pressure air back flushing method and the like. The thermal combustion regeneration method generates a gas flow with a temperature of about 400-600 ℃ by a heating device, and oxidizes and burns off particulate matters accumulated in the DPF. At present, only a heating regeneration method can carry out regeneration under the condition of not disassembling the DPF, and the method is a convenient method. The optional heating means typically comprises an electric heating means or a fuel combustion means. The electric heating device can heat the tail gas of the engine to the required temperature, but the power consumption is large, and the vehicle generator can not meet the power consumption requirement, so that the regeneration can be completed only by an external power supply. The fuel combustion device adopts injected fuel, the fuel is combusted in combustion-supporting gas flow, and high-temperature tail gas after combustion is guided into the DPF to realize regeneration.
In the DPF regeneration system disclosed in CN104454086A, air is used as combustion-supporting gas, and the electronic control unit controls oil injection of a burner oil pump and ignition of a glow plug in a burner according to the collected temperature signal and pressure signal, so as to generate high-temperature gas, the high-temperature gas is converged into an engine exhaust pipe to heat the exhaust gas in the exhaust pipe, and the heated exhaust gas is further heated by DOC oxidation, thereby realizing regeneration of particulates in the DPF.
The ignition heating device disclosed in CN105971692A is used for sending burning flame and tail gas into an ART system together, and utilizes the residual oxygen in the tail gas to support combustion to rapidly raise the temperature of the tail gas, so that the tiny particles retained in the DPF are burned, and the ignition heating device adopts air to support combustion.
CN206545532U discloses independent burner for combustion mixer, including first inner shell and the second inner shell that is different and communicate with the axle center diameter, form first inside independent combustion chamber and the inside independent combustion chamber of second respectively, the outer wall of the first inner shell other end passes through second mount pad and casing fixed connection, can avoid tail gas to flow the influence to the fuel burning, and tail gas can not cause to erode flame.
The combustion devices all use air as combustion-supporting gas. For a high-power engine, because a high-power high-pressure fan with several kilowatts is needed, and a vehicle generator or a battery has no power supply capacity, an external power supply is needed during DPF regeneration, and the use is very inconvenient.
Disclosure of Invention
An object of the utility model is to provide an use diesel engine exhaust as combustion-supporting gas's fuel oil burner, this combustor is igniteed, the burning reliability is high, provides the high temperature gas who satisfies the regeneration requirement for the DPF of rear end.
The utility model discloses the combustor is including helping the gas stream guide chamber, diesel oil evaporimeter, electric heat ignition stick, combustion chamber and inflation expansion chamber, and the air current of outside supply is guided to combustion-supporting gas stream guide chamber to turn into rotatory air current after getting into the combustion chamber, the diesel oil evaporimeter is located the combustion chamber center, evaporates the diesel oil of adding, and electric heat ignition stick is located the oil-out department of diesel oil evaporimeter, and the inflation expansion chamber is located the combustion chamber rear portion.
And a circular arc flame stabilizing plate is arranged outside the diesel evaporator.
The flame stabilizing plate is provided with an oil pipe which can supply oil to the surface of the flame stabilizing plate.
And a temperature sensor is arranged near the electric heating ignition rod.
The diesel evaporator comprises an inner cylinder and an outer cylinder, a closed cavity formed by the inner cylinder, the outer cylinder and an end sealing plate is used as a diesel flow channel, the diesel flow channel is provided with an oil inlet and an oil outlet, the oil inlet is connected with an external oil supply device through a pipeline, the oil outlet is connected with a pipeline, and the electric heating ignition rod is inserted into the outlet of the pipeline.
The diesel oil evaporator comprises an inner cylinder and an outer cylinder, a closed cavity formed by the inner cylinder, the outer cylinder and an end sealing plate serves as a diesel oil flow channel, the diesel oil flow channel is provided with an oil inlet and an oil outlet, the oil inlet is connected with an external oil supply device through a pipeline, and the oil outlet is provided with a plurality of micropores and is positioned at the bottom end, the middle part or the tail end of the diesel oil flow channel.
The diesel evaporator comprises an inner cylinder and an outer cylinder, a closed cavity formed by the inner cylinder, the outer cylinder and an end sealing plate serves as a diesel flow channel, the diesel flow channel is provided with an oil inlet and an oil outlet, the oil inlet is connected with an external oil supply device through a pipeline, the oil outlet is a plurality of micropores and is located at the bottom end, the middle part or the tail end of the diesel flow channel, a U-shaped oil pipe is arranged at the center of the diesel evaporator, one end of the U-shaped oil pipe is connected with the oil supply device, the other end of the U-shaped oil pipe is an open end.
The wall of the expansion chamber has at least one plate-shaped perforated baffle arranged radially with the expansion chamber.
In the porous baffles, at least one surface of the porous baffle is provided with a plurality of intercepting plates which are vertical to the porous baffle and are radially arranged with the combustion chamber, and the intercepting plates are in a flat plate shape or an arc shape.
The wall part of the expansion cavity is provided with a plurality of spiral mixed flow plates which are rotationally and symmetrically distributed on the wall part of the expansion cavity.
The utility model discloses turn into rotatory air current with engine exhaust air current, utilize the engine exhaust as helping the gas stream, the diesel oil through the evaporation is located the lower rotatory air current center of velocity of flow, can burn easily when little oil mass, and combustion area progressively increases to the great region of combustion-supporting gas stream velocity of flow when the oil mass progressively increases, and combustion-supporting gas can self-adaptation match with burning diesel oil. The utility model discloses need not use the diesel oil nozzle, avoid appearing the nozzle jam problem that often takes place among the prior art, simple structure, the reliability is high, can be arranged to use diesel oil to regenerate DPF in road moving vehicle, engineering machine tool, agricultural machine or the generating set as fuel.
Drawings
Fig. 1 is an external view of an embodiment of the present invention.
Fig. 2-3 are cross-sectional views of the burner of fig. 1.
Fig. 4 and 5 are sectional views of the guide chamber.
Fig. 6-8 are plan views of the perforated baffle.
Fig. 9 is a schematic view of another embodiment of the present invention.
Fig. 10 is a cross-sectional view of the embodiment of fig. 9.
Fig. 11 is a sectional view a-a.
Fig. 12 and 13 are schematic diagrams of an embodiment of a diesel evaporator.
Fig. 14 and 15 are schematic diagrams of another embodiment of the diesel evaporator.
Fig. 16 and 17 are schematic diagrams of a third embodiment of the diesel evaporator.
Fig. 18 and 19 are schematic diagrams of a fourth embodiment of the diesel evaporator.
Fig. 20 and 21 are schematic diagrams of an embodiment containing a second diesel evaporator.
Detailed Description
Fig. 1, 2 and 3 show an embodiment of the present invention, and the burner is composed of a combustion-supporting airflow guide cavity 1, a diesel evaporator 3, an electric heating ignition rod 8, a combustion chamber 2, an expansion cavity 21, a first porous baffle 6 and a second porous baffle 7. As shown in fig. 4, the combustion-supporting gas flow guiding chamber 1 is an annular chamber, one end 12 of the annular chamber is closed, the other end 11 of the annular chamber is open, the annular chamber is externally connected with an exhaust pipe 10 of a diesel engine, and engine exhaust enters the combustion-supporting gas flow guiding chamber 1 and then enters the combustion chamber 2 from the open end 11 to be converted into rotating gas flow. The combustion chamber 2 is a cylindrical cavity, the rear part of the combustion chamber is a flared expansion cavity 21, and the expansion cavity 21 is externally connected with a DPF needing to be regenerated. Fig. 6 shows that the first perforated baffle 6 is a circular perforated flat plate, and is located in the expansion chamber 21 to block the airflow, so as to facilitate the equalization of the axial flow rate and temperature of the airflow at the front end of the DPF. Fig. 7 and 8 show an alternative second perforated baffle 7, which is a circular perforated flat plate located at the middle end of the expansion chamber 21, and a plurality of cut-off plates 71 are attached to the second perforated baffle 7 and perpendicular to the second perforated baffle 7, and the cut-off plates 71 are in the shape of circular arcs (shown in fig. 7) or flat plates 72 (shown in fig. 8) and are radially distributed to promote further mixing of the gas streams and provide uniform flow rate and temperature. If the flow rate of the gas entering the combustion chamber 2 is appropriate, it becomes possible to obtain a gas flow with a uniform axial flow rate and temperature after expanding the expansion chamber 21, and it is possible to use it for the regeneration of the DPF, in which case the first perforated barrier 6 and/or the second perforated barrier 7 can also be omitted.
After the burner is started, the electric heating ignition rod 8 is electrified and preheated, the temperature sensor 4 detects that the electric heating ignition rod 8 normally works, the external oil supply device provides small-flow diesel oil for the evaporator 3, when the diesel oil flows through the electric heating ignition rod 8, the diesel oil is vaporized and ignited, after the diesel oil is burnt for a period of time, the evaporator 3 is heated by peripheral combustion airflow, the evaporated diesel oil steam is gradually increased, and the external oil supply device gradually increases the oil supply amount until the airflow temperature required by DPF regeneration is reached. The rotatory air current after helping the guide of gas flow direction chamber 1 makes the middle part of combustion-supporting air current velocity of flow of combustion chamber 2 lower, be favorable to the burning of early little oil mass, evaporimeter 3 is heated the back, diesel oil vaporization speed is accelerated in the evaporimeter 3, under the condition that outside oil supply unit increased the fuel feeding volume, the combustion range enlarges the combustion-supporting air current of peripheral higher velocity of flow gradually, solve the oil mass size and the self-adaptation of combustion-supporting air current and match, make the equal normal combustion of oil mass change process.
Fig. 9 to 11 show another embodiment of the present invention. The combustion-supporting gas flow guide cavity 1 is an annular cavity channel formed by an outer cylinder 13, two semi-cylindrical baffles 14 and 15 and an outer wall 22 of an expansion cavity 21, an inner cavity formed by the two semi-cylindrical baffles 14 and 15 is a combustion chamber 2, the two semi-cylindrical baffles 14 and 15 are eccentrically arranged to form two gas flow outlets 16 and 17 communicated with the combustion chamber 2, and the combustion chamber 2 is communicated with the horn-shaped expansion cavity 21. After entering the combustion-supporting gas flow guiding chamber 1 from the duct 10, the combustion-supporting gas flow forms a swirling gas flow in the combustion chamber 2 when exiting from the two gas flow outlets 16, 17. The diesel evaporator 3 is positioned in the center of the combustion chamber 2, a semi-cylindrical flame stabilizing plate 5 is arranged on the periphery of the evaporator 3, the flame stabilizing plate 5 and the evaporator 3 form a coaxial configuration, and an oil supply pipe 51 is arranged on the flame stabilizing plate 5. In the oil supply and combustion process of the evaporator 3, the flame stabilizing plate 5 can be heated, the temperature around the evaporator 3 is further increased, the diesel oil is combusted more fully, and the combustion flame is white to blue. When the amount of oil supplied to the evaporator 3 reaches a predetermined amount, the oil is further supplied to the oil supply pipe 51, and the diesel oil flowing out of the oil supply pipe 51 is evaporated on the flame stabilizing plate 5 to be oil vapor and rapidly burned. The expansion of the combustion oil amount is applicable to a high-power engine. The middle parts of the two semi-cylindrical baffles 14 and 15 are respectively provided with a baffle 18 and a baffle 19 which are radially configured with the combustion chamber, and the rotating airflow can be converted into a runway shape by the blockage of the baffles 18 and 19, so that the diesel steam and the combustion-supporting gas flow are more fully mixed. The inner wall of the expansion cavity 21 is provided with two spiral mixed flow plates 23 and 24, and because the temperature of the air flow in the center of the combustion chamber is higher than the peripheral temperature, and the flow rate is lower than the peripheral flow, the air flow flowing through the expansion cavity 21 is blocked, stirred and mixed by the mixed flow plates 23 and 24 to form hot air with uniform temperature and flow rate.
Optional structure of the combustion-supporting gas flow guiding chamber 1 further includes: tangential access to the combustion chamber 2 is provided by a duct (not shown) or, as shown in fig. 5, by a partially annular duct coaxial with the combustion chamber 2, these configurations being able to create a rotating flow of air in the combustion chamber.
Fig. 12 and 13 show an embodiment of the diesel evaporator 3, the diesel evaporator 3 includes an inner cylinder 311 and an outer cylinder 312, a closed cavity formed by the inner cylinder 311, the outer cylinder 312 and end closing plates 313, 314, 319 is used as a diesel flow passage, the diesel flow passage is provided with an oil inlet 315 and an oil outlet 316, the oil inlet 315 is connected with an external oil supply device through a pipeline 317, the oil outlet 316 is connected with a pipeline 318, and the electrically heated ignition rod 8 is inserted into an outlet of the pipeline 318.
The temperature sensor 4 is arranged near the electric heating ignition rod 8, and after the burner is started, whether the electric heating ignition rod 8 breaks down or not can be detected according to the reading change of the temperature sensor 4, and whether the ignition is successful or not can be detected.
Fig. 14 and 15 show another embodiment of the diesel evaporator 3, the diesel evaporator 3 includes an inner cylinder 321 and an outer cylinder 322, a closed cavity formed by the inner cylinder 321, the outer cylinder 322 and end closure plates 323, 324 and 329 serves as a diesel flow passage, the diesel flow passage is opened with an oil inlet 325 and an oil outlet 326, the oil inlet 325 is connected with an external oil supply device through a pipe 327, the oil outlet 326 is connected with a pipe 328, and the electrically heated ignition rod 8 is inserted into an outlet of the pipe 328.
Fig. 16 and 17 show a third embodiment of the diesel evaporator 3, the diesel evaporator 3 includes an inner cylinder 331 and an outer cylinder 332, a closed cavity formed by the inner cylinder 331, the outer cylinder 332 and an end sealing plate 333 is used as a diesel flow passage, the diesel flow passage is provided with an oil inlet 335 and an oil outlet 336, the outer cylinder 332 is further provided with another outer cylinder 334 outside, the oil outlet 336 is communicated with a crack formed by the outer cylinder 332 and the another outer cylinder 334, the crack end 338 is open and is positioned at the front end part, the middle part or the rear end part of the outer cylinder 332, and the oil inlet 335 is connected with an external oil supply device through a pipeline 337. The inner cylinder 331 is a hollow cylinder, a U-shaped oil pipe 341 is further provided at the center of the inner cylinder 331, one end of the U-shaped oil pipe 341 is connected to an external oil supply unit, and the other end thereof is an open end 342 into which the electrically heated ignition rod 8 is inserted. After the burner is started, the electric heating ignition rod 8 is electrified for preheating, the external oil supply device supplies oil to the U-shaped oil pipe 341 and is ignited on the electric heating ignition rod 8, the heat generated by combustion heats the diesel evaporator 3, and after the external oil supply device supplies oil to the diesel evaporator 3, diesel oil is vaporized into gas mist which is sprayed out from the oil outlet 336 and is mixed with combustion-supporting gas flow for combustion.
Fig. 18 and 19 show a fourth embodiment of the diesel evaporator 3, and the diesel evaporator 3 includes an inner cylinder 351 and an outer cylinder 352, and a closed cavity formed by the inner cylinder 351, the outer cylinder 352 and end closure plates 353 and 358 serves as a diesel flow passage having an oil inlet 355 and an oil outlet 356, and the oil inlet 355 is connected to an external oil supply device through a pipe 357. The oil outlet 356 is a plurality of micro holes on the front end sealing plate 353 or the rear end sealing plate 358 of the diesel oil flow passage. The inner cylinder 351 is a hollow cylinder, and a U-shaped oil pipe 361 is further provided at the center of the inner cylinder 351, one end of the U-shaped oil pipe 361 is connected to an external oil supply unit, and the other end thereof is an open end 362, and the electrically heated ignition rod 8 is inserted into the open end 362. After the burner is started, the electric heating ignition rod 8 is preheated, the external oil supply device supplies oil to the U-shaped oil pipe 361, the electric heating ignition rod 8 is ignited, the heat generated by combustion heats the diesel evaporator 3, and after the external oil supply device supplies oil to the diesel evaporator 3, diesel oil is vaporized into aerosol and sprayed out from the oil outlet 356 to be mixed with combustion-supporting airflow for combustion.
Fig. 20 and 21 show an embodiment including a second diesel evaporator, and the first diesel evaporator 3 is constructed as shown in fig. 12 and 13. And a second evaporator 30, wherein the evaporator 30 comprises an inner cylinder 301, a middle cylinder 302 and an outer cylinder 303, a closed cavity formed by the inner cylinder 301, the middle cylinder 302, the outer cylinder 303 and end closing plates 304 and 305 is used as a diesel oil flow passage, the diesel oil flow passage is provided with an oil inlet 306 and an oil outlet 307, and the oil inlet 306 is connected with an external oil supply device through a pipeline 308. The oil outlet 307 is a crack outlet of the middle cylinder 302 and the outer cylinder 303, and is located in the middle of the middle cylinder 302, and the inner cylinder 301 is a hollow cylinder. After the burner is started, the electric heating ignition rod 8 is electrified for preheating, an external oil supply device supplies oil to the diesel evaporator 3, the electric heating ignition rod 8 is ignited, the evaporator 3 and the second evaporator 30 are heated by heat generated by combustion, and combustion of diesel with large flow can be used to match a high-power diesel engine.
Claims (10)
1. A combustor for DPF regeneration is characterized by comprising a combustion-supporting gas flow guide cavity, a diesel evaporator, an electric heating ignition rod, a combustion chamber and an expansion cavity, wherein the combustion-supporting gas flow guide cavity guides externally supplied gas flow so as to convert the externally supplied gas flow into rotary gas flow after entering the combustion chamber, the diesel evaporator is located in the center of the combustion chamber and evaporates added diesel, the electric heating ignition rod is located at an oil outlet of the diesel evaporator, and the expansion cavity is located at the rear part of the combustion chamber.
2. The burner of claim 1, wherein the diesel evaporator has a circular arc flame stabilizing plate on the outside.
3. The burner of claim 2, wherein the flame stabilizing plate has an oil pipe for supplying oil to the surface of the flame stabilizing plate.
4. A burner as claimed in any one of claims 1 to 3, wherein a temperature sensor is provided adjacent to said electrically heated ignition bar.
5. The burner as claimed in any one of claims 1 to 3, wherein the diesel evaporator comprises an inner cylinder and an outer cylinder, and a closed cavity formed by the inner cylinder, the outer cylinder and the end closing plate serves as a diesel flow passage, the diesel flow passage is provided with an oil inlet and an oil outlet, the oil inlet is connected to an external oil supply device through a pipe, the oil outlet is connected to a pipe, and the electrically heated ignition rod is inserted into the outlet of the pipe.
6. The burner of claim 5, further comprising a second diesel evaporator, wherein the second diesel evaporator comprises an inner cylinder and an outer cylinder, the closed cavity formed by the inner cylinder, the outer cylinder and the end sealing plate serves as a diesel flow channel, the diesel flow channel is provided with an oil inlet and an oil outlet, the oil inlet is connected with an external oil supply device through a pipeline, and the oil outlet is a plurality of micropores and is located at the bottom end, the middle part or the tail end of the diesel flow channel.
7. The burner of claim 1 or 2, wherein the diesel evaporator comprises an inner cylinder and an outer cylinder, a closed cavity formed by the inner cylinder, the outer cylinder and the end sealing plate serves as a diesel flow passage, the diesel flow passage is provided with an oil inlet and an oil outlet, the oil inlet is connected with an external oil supply device through a pipeline, the oil outlet is provided with a plurality of micropores and is positioned at the bottom end, the middle part or the tail end of the diesel flow passage, a U-shaped oil pipe is arranged at the center of the diesel evaporator, one end of the U-shaped oil pipe is connected with the oil supply device, the other end of the U-shaped oil pipe is an open end, and the ignition.
8. A burner according to any of claims 1-3, wherein the expansion chamber wall has at least one plate-shaped perforated barrier arranged radially with the expansion chamber.
9. The burner of claim 8 wherein at least one of the perforated baffles has a plurality of flow intercepting plates perpendicular to the perforated baffle and radially disposed from the combustion chamber, the flow intercepting plates being in the shape of a flat plate or a circular arc.
10. A burner as claimed in any one of claims 1 to 3, wherein the wall of the expansion chamber has a plurality of helical flow mixing plates arranged in a rotationally symmetrical pattern in the wall of the expansion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920456190.6U CN209818143U (en) | 2019-04-06 | 2019-04-06 | Combustor for DPF regeneration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920456190.6U CN209818143U (en) | 2019-04-06 | 2019-04-06 | Combustor for DPF regeneration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818143U true CN209818143U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920456190.6U Active CN209818143U (en) | 2019-04-06 | 2019-04-06 | Combustor for DPF regeneration |
Country Status (1)
| Country | Link |
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| CN (1) | CN209818143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958503A (en) * | 2019-04-06 | 2019-07-02 | 黄育新 | A kind of burner for dpf regeneration |
-
2019
- 2019-04-06 CN CN201920456190.6U patent/CN209818143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958503A (en) * | 2019-04-06 | 2019-07-02 | 黄育新 | A kind of burner for dpf regeneration |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210803 Address after: 515000 No. 14A Yanhe Road, Jinping District, Shantou City, Guangdong Province Patentee after: Guangdong Jianan Environmental Biotechnology Co.,Ltd. Address before: 515041 Room 106, No. 11 Xialing Road, Jinping District, Shantou City, Guangdong Province Patentee before: Huang Yuxin |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210913 Address after: 515000 D, No. 14, Yanhe Road, Jinping District, Shantou City, Guangdong Province Patentee after: Guangdong Liannan Environmental Protection Technology Co.,Ltd. Address before: 515000 No. 14A Yanhe Road, Jinping District, Shantou City, Guangdong Province Patentee before: Guangdong Jianan Environmental Biotechnology Co.,Ltd. |
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| TR01 | Transfer of patent right |